Adding upstream version 6.1.76.upstream/6.1.76

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

59 files changed, 27721 insertions, 0 deletions

diff --git a/sound/soc/fsl/Kconfig b/sound/soc/fsl/Kconfig
new file mode 100644
index 000000000..614eceda6
--- /dev/null
+++ b/sound/soc/fsl/Kconfig
@@ -0,0 +1,373 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menu "SoC Audio for Freescale CPUs"
+
+comment "Common SoC Audio options for Freescale CPUs:"
+
+config SND_SOC_FSL_ASRC
+	tristate "Asynchronous Sample Rate Converter (ASRC) module support"
+	depends on HAS_DMA
+	select REGMAP_MMIO
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y if you want to add Asynchronous Sample Rate Converter (ASRC)
+	  support for the Freescale CPUs.
+	  This option is only useful for out-of-tree drivers since
+	  in-tree drivers select it automatically.
+
+config SND_SOC_FSL_SAI
+	tristate "Synchronous Audio Interface (SAI) module support"
+	select REGMAP_MMIO
+	select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	select SND_SOC_FSL_UTILS
+	help
+	  Say Y if you want to add Synchronous Audio Interface (SAI)
+	  support for the Freescale CPUs.
+	  This option is only useful for out-of-tree drivers since
+	  in-tree drivers select it automatically.
+
+config SND_SOC_FSL_MQS
+	tristate "Medium Quality Sound (MQS) module support"
+	depends on SND_SOC_FSL_SAI
+	select REGMAP_MMIO
+	help
+	  Say Y if you want to add Medium Quality Sound (MQS)
+	  support for the Freescale CPUs.
+	  This option is only useful for out-of-tree drivers since
+	  in-tree drivers select it automatically.
+
+config SND_SOC_FSL_AUDMIX
+	tristate "Audio Mixer (AUDMIX) module support"
+	select REGMAP_MMIO
+	help
+	  Say Y if you want to add Audio Mixer (AUDMIX)
+	  support for the NXP iMX CPUs.
+
+config SND_SOC_FSL_SSI
+	tristate "Synchronous Serial Interface module (SSI) support"
+	select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
+	select SND_SOC_IMX_PCM_FIQ if SND_IMX_SOC != n && (MXC_TZIC || MXC_AVIC)
+	select REGMAP_MMIO
+	help
+	  Say Y if you want to add Synchronous Serial Interface (SSI)
+	  support for the Freescale CPUs.
+	  This option is only useful for out-of-tree drivers since
+	  in-tree drivers select it automatically.
+
+config SND_SOC_FSL_SPDIF
+	tristate "Sony/Philips Digital Interface (S/PDIF) module support"
+	select REGMAP_MMIO
+	select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
+	select SND_SOC_IMX_PCM_FIQ if SND_IMX_SOC != n && (MXC_TZIC || MXC_AVIC)
+	select BITREVERSE
+	select SND_SOC_FSL_UTILS
+	help
+	  Say Y if you want to add Sony/Philips Digital Interface (SPDIF)
+	  support for the Freescale CPUs.
+	  This option is only useful for out-of-tree drivers since
+	  in-tree drivers select it automatically.
+
+config SND_SOC_FSL_ESAI
+	tristate "Enhanced Serial Audio Interface (ESAI) module support"
+	select REGMAP_MMIO
+	select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
+	help
+	  Say Y if you want to add Enhanced Synchronous Audio Interface
+	  (ESAI) support for the Freescale CPUs.
+	  This option is only useful for out-of-tree drivers since
+	  in-tree drivers select it automatically.
+
+config SND_SOC_FSL_MICFIL
+	tristate "Pulse Density Modulation Microphone Interface (MICFIL) module support"
+	select REGMAP_MMIO
+	select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	select SND_SOC_FSL_UTILS
+	help
+	  Say Y if you want to add Pulse Density Modulation microphone
+	  interface (MICFIL) support for NXP.
+
+config SND_SOC_FSL_EASRC
+	tristate "Enhanced Asynchronous Sample Rate Converter (EASRC) module support"
+	depends on SND_SOC_FSL_ASRC
+	select REGMAP_MMIO
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y if you want to add Enhanced ASRC support for NXP. The ASRC is
+	  a digital module that converts audio from a source sample rate to a
+	  destination sample rate. It is a new design module compare with the
+	  old ASRC.
+
+config SND_SOC_FSL_XCVR
+	tristate "NXP Audio Transceiver (XCVR) module support"
+	select REGMAP_MMIO
+	select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y if you want to add Audio Transceiver (XCVR) support for NXP
+	  iMX CPUs. XCVR is a digital module that supports HDMI2.1 eARC,
+	  HDMI1.4 ARC and SPDIF.
+
+config SND_SOC_FSL_AUD2HTX
+	tristate "AUDIO TO HDMI TX module support"
+	depends on ARCH_MXC || COMPILE_TEST
+	select SND_SOC_IMX_PCM_DMA if SND_IMX_SOC != n
+	help
+	  Say Y if you want to add AUDIO TO HDMI TX support for NXP.
+
+config SND_SOC_FSL_UTILS
+	tristate
+
+config SND_SOC_FSL_RPMSG
+	tristate "NXP Audio Base On RPMSG support"
+	depends on COMMON_CLK
+	depends on RPMSG
+	depends on SND_IMX_SOC || SND_IMX_SOC = n
+	select SND_SOC_IMX_RPMSG if SND_IMX_SOC != n
+	help
+	  Say Y if you want to add rpmsg audio support for the Freescale CPUs.
+	  This option is only useful for out-of-tree drivers since
+	  in-tree drivers select it automatically.
+
+config SND_SOC_IMX_PCM_DMA
+	tristate
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+
+config SND_SOC_IMX_AUDIO_RPMSG
+	tristate
+	depends on RPMSG
+
+config SND_SOC_IMX_PCM_RPMSG
+	tristate
+	depends on SND_SOC_IMX_AUDIO_RPMSG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+
+config SND_SOC_IMX_AUDMUX
+	tristate "Digital Audio Mux module support"
+	help
+	  Say Y if you want to add Digital Audio Mux (AUDMUX) support
+	  for the ARM i.MX CPUs.
+	  This option is only useful for out-of-tree drivers since
+	  in-tree drivers select it automatically.
+
+config SND_POWERPC_SOC
+	tristate "SoC Audio for Freescale PowerPC CPUs"
+	depends on FSL_SOC || PPC_MPC52xx
+	help
+	  Say Y or M if you want to add support for codecs attached to
+	  the PowerPC CPUs.
+
+config SND_IMX_SOC
+	tristate "SoC Audio for Freescale i.MX CPUs"
+	depends on ARCH_MXC || COMPILE_TEST
+	help
+	  Say Y or M if you want to add support for codecs attached to
+	  the i.MX CPUs.
+
+if SND_POWERPC_SOC
+
+config SND_MPC52xx_DMA
+	tristate
+
+config SND_SOC_POWERPC_DMA
+	tristate
+
+comment "SoC Audio support for Freescale PPC boards:"
+
+config SND_SOC_MPC8610_HPCD
+	tristate "ALSA SoC support for the Freescale MPC8610 HPCD board"
+	# I2C is necessary for the CS4270 driver
+	depends on MPC8610_HPCD && I2C
+	select SND_SOC_FSL_SSI
+	select SND_SOC_FSL_UTILS
+	select SND_SOC_POWERPC_DMA
+	select SND_SOC_CS4270
+	select SND_SOC_CS4270_VD33_ERRATA
+	default y if MPC8610_HPCD
+	help
+	  Say Y if you want to enable audio on the Freescale MPC8610 HPCD.
+
+config SND_SOC_P1022_DS
+	tristate "ALSA SoC support for the Freescale P1022 DS board"
+	# I2C is necessary for the WM8776 driver
+	depends on P1022_DS && I2C
+	select SND_SOC_FSL_SSI
+	select SND_SOC_FSL_UTILS
+	select SND_SOC_POWERPC_DMA
+	select SND_SOC_WM8776
+	default y if P1022_DS
+	help
+	  Say Y if you want to enable audio on the Freescale P1022 DS board.
+	  This will also include the Wolfson Microelectronics WM8776 codec
+	  driver.
+
+config SND_SOC_P1022_RDK
+	tristate "ALSA SoC support for the Freescale / iVeia P1022 RDK board"
+	# I2C is necessary for the WM8960 driver
+	depends on P1022_RDK && I2C
+	select SND_SOC_FSL_SSI
+	select SND_SOC_FSL_UTILS
+	select SND_SOC_POWERPC_DMA
+	select SND_SOC_WM8960
+	default y if P1022_RDK
+	help
+	  Say Y if you want to enable audio on the Freescale / iVeia
+	  P1022 RDK board.  This will also include the Wolfson
+	  Microelectronics WM8960 codec driver.
+
+config SND_SOC_MPC5200_I2S
+	tristate "Freescale MPC5200 PSC in I2S mode driver"
+	depends on PPC_MPC52xx && PPC_BESTCOMM
+	select SND_MPC52xx_DMA
+	select PPC_BESTCOMM_GEN_BD
+	help
+	  Say Y here to support the MPC5200 PSCs in I2S mode.
+
+config SND_SOC_MPC5200_AC97
+	tristate "Freescale MPC5200 PSC in AC97 mode driver"
+	depends on PPC_MPC52xx && PPC_BESTCOMM
+	select SND_SOC_AC97_BUS
+	select SND_MPC52xx_DMA
+	select PPC_BESTCOMM_GEN_BD
+	help
+	  Say Y here to support the MPC5200 PSCs in AC97 mode.
+
+config SND_MPC52xx_SOC_PCM030
+	tristate "SoC AC97 Audio support for Phytec pcm030 and WM9712"
+	depends on PPC_MPC5200_SIMPLE
+	select SND_SOC_MPC5200_AC97
+	select SND_SOC_WM9712
+	help
+	  Say Y if you want to add support for sound on the Phytec pcm030
+	  baseboard.
+
+config SND_MPC52xx_SOC_EFIKA
+	tristate "SoC AC97 Audio support for bbplan Efika and STAC9766"
+	depends on PPC_EFIKA
+	select SND_SOC_MPC5200_AC97
+	select SND_SOC_STAC9766
+	help
+	  Say Y if you want to add support for sound on the Efika.
+
+endif # SND_POWERPC_SOC
+
+config SND_SOC_IMX_PCM_FIQ
+	tristate
+	default y if (SND_SOC_FSL_SSI=m || SND_SOC_FSL_SPDIF=m) && (MXC_TZIC || MXC_AVIC)
+	select FIQ
+
+if SND_IMX_SOC
+
+comment "SoC Audio support for Freescale i.MX boards:"
+
+config SND_SOC_EUKREA_TLV320
+	tristate "Eukrea TLV320"
+	depends on ARCH_MXC && !ARM64 && I2C
+	select SND_SOC_TLV320AIC23_I2C
+	select SND_SOC_IMX_AUDMUX
+	select SND_SOC_FSL_SSI
+	select SND_SOC_IMX_PCM_DMA
+	help
+	  Enable I2S based access to the TLV320AIC23B codec attached
+	  to the SSI interface
+
+config SND_SOC_IMX_ES8328
+	tristate "SoC Audio support for i.MX boards with the ES8328 codec"
+	depends on OF && (I2C || SPI)
+	select SND_SOC_ES8328_I2C if I2C
+	select SND_SOC_ES8328_SPI if SPI_MASTER
+	select SND_SOC_IMX_PCM_DMA
+	select SND_SOC_IMX_AUDMUX
+	select SND_SOC_FSL_SSI
+	help
+	  Say Y if you want to add support for the ES8328 audio codec connected
+	  via SSI/I2S over either SPI or I2C.
+
+config SND_SOC_IMX_SGTL5000
+	tristate "SoC Audio support for i.MX boards with sgtl5000"
+	depends on OF && I2C
+	select SND_SOC_SGTL5000
+	select SND_SOC_IMX_PCM_DMA
+	select SND_SOC_IMX_AUDMUX
+	select SND_SOC_FSL_SSI
+	help
+	  Say Y if you want to add support for SoC audio on an i.MX board with
+	  a sgtl5000 codec.
+
+config SND_SOC_IMX_SPDIF
+	tristate "SoC Audio support for i.MX boards with S/PDIF"
+	select SND_SOC_IMX_PCM_DMA
+	select SND_SOC_FSL_SPDIF
+	help
+	  SoC Audio support for i.MX boards with S/PDIF
+	  Say Y if you want to add support for SoC audio on an i.MX board with
+	  a S/DPDIF.
+
+config SND_SOC_FSL_ASOC_CARD
+	tristate "Generic ASoC Sound Card with ASRC support"
+	depends on OF && I2C
+	# enforce SND_SOC_FSL_ASOC_CARD=m if SND_AC97_CODEC=m:
+	depends on SND_AC97_CODEC || SND_AC97_CODEC=n
+	select SND_SIMPLE_CARD_UTILS
+	select SND_SOC_IMX_AUDMUX
+	select SND_SOC_IMX_PCM_DMA
+	select SND_SOC_FSL_ESAI
+	select SND_SOC_FSL_SAI
+	select SND_SOC_FSL_SSI
+	select SND_SOC_TLV320AIC31XX
+	select SND_SOC_WM8994
+	select MFD_WM8994
+	help
+	 ALSA SoC Audio support with ASRC feature for Freescale SoCs that have
+	 ESAI/SAI/SSI and connect with external CODECs such as WM8962, CS42888,
+	 CS4271, CS4272, SGTL5000 and TLV320AIC32x4.
+	 Say Y if you want to add support for Freescale Generic ASoC Sound Card.
+
+config SND_SOC_IMX_AUDMIX
+	tristate "SoC Audio support for i.MX boards with AUDMIX"
+	select SND_SOC_FSL_AUDMIX
+	select SND_SOC_FSL_SAI
+	help
+	  SoC Audio support for i.MX boards with Audio Mixer
+	  Say Y if you want to add support for SoC audio on an i.MX board with
+	  an Audio Mixer.
+
+config SND_SOC_IMX_HDMI
+	tristate "SoC Audio support for i.MX boards with HDMI port"
+	select SND_SOC_FSL_SAI
+	select SND_SOC_FSL_AUD2HTX
+	select SND_SOC_HDMI_CODEC
+	help
+	  ALSA SoC Audio support with HDMI feature for Freescale SoCs that have
+	  SAI/AUD2HTX and connect with internal HDMI IP or external module
+	  SII902X.
+	  Say Y if you want to add support for SoC audio on an i.MX board with
+	  IMX HDMI.
+
+config SND_SOC_IMX_RPMSG
+	tristate "SoC Audio support for i.MX boards with rpmsg"
+	depends on RPMSG
+	select SND_SOC_IMX_PCM_RPMSG
+	select SND_SOC_IMX_AUDIO_RPMSG
+	help
+	  SoC Audio support for i.MX boards with rpmsg.
+	  There should be rpmsg devices defined in other core (M core)
+	  Say Y if you want to add support for SoC audio on an i.MX board with
+	  a rpmsg devices.
+
+config SND_SOC_IMX_CARD
+	tristate "SoC Audio Graph Sound Card support for i.MX boards"
+	depends on OF && I2C
+	select SND_SOC_AK4458
+	select SND_SOC_AK5558
+	select SND_SOC_IMX_PCM_DMA
+	select SND_SOC_FSL_SAI
+	select SND_SIMPLE_CARD_UTILS
+	help
+	  This option enables audio sound card support for i.MX boards
+	  with OF-graph DT bindings.
+	  It also support DPCM of single CPU multi Codec ststem.
+
+endif # SND_IMX_SOC
+
+endmenu
diff --git a/sound/soc/fsl/Makefile b/sound/soc/fsl/Makefile
new file mode 100644
index 000000000..b54beb1a6
--- /dev/null
+++ b/sound/soc/fsl/Makefile
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: GPL-2.0
+# MPC8610 HPCD Machine Support
+snd-soc-mpc8610-hpcd-objs := mpc8610_hpcd.o
+obj-$(CONFIG_SND_SOC_MPC8610_HPCD) += snd-soc-mpc8610-hpcd.o
+
+# P1022 DS Machine Support
+snd-soc-p1022-ds-objs := p1022_ds.o
+obj-$(CONFIG_SND_SOC_P1022_DS) += snd-soc-p1022-ds.o
+
+# P1022 RDK Machine Support
+snd-soc-p1022-rdk-objs := p1022_rdk.o
+obj-$(CONFIG_SND_SOC_P1022_RDK) += snd-soc-p1022-rdk.o
+
+# Freescale SSI/DMA/SAI/SPDIF Support
+snd-soc-fsl-audmix-objs := fsl_audmix.o
+snd-soc-fsl-asoc-card-objs := fsl-asoc-card.o
+snd-soc-fsl-asrc-objs := fsl_asrc.o fsl_asrc_dma.o
+snd-soc-fsl-sai-objs := fsl_sai.o
+snd-soc-fsl-ssi-y := fsl_ssi.o
+snd-soc-fsl-ssi-$(CONFIG_DEBUG_FS) += fsl_ssi_dbg.o
+snd-soc-fsl-spdif-objs := fsl_spdif.o
+snd-soc-fsl-esai-objs := fsl_esai.o
+snd-soc-fsl-micfil-objs := fsl_micfil.o
+snd-soc-fsl-utils-objs := fsl_utils.o
+snd-soc-fsl-dma-objs := fsl_dma.o
+snd-soc-fsl-mqs-objs := fsl_mqs.o
+snd-soc-fsl-easrc-objs := fsl_easrc.o
+snd-soc-fsl-xcvr-objs := fsl_xcvr.o
+snd-soc-fsl-aud2htx-objs := fsl_aud2htx.o
+snd-soc-fsl-rpmsg-objs := fsl_rpmsg.o
+
+obj-$(CONFIG_SND_SOC_FSL_AUDMIX) += snd-soc-fsl-audmix.o
+obj-$(CONFIG_SND_SOC_FSL_ASOC_CARD) += snd-soc-fsl-asoc-card.o
+obj-$(CONFIG_SND_SOC_FSL_ASRC) += snd-soc-fsl-asrc.o
+obj-$(CONFIG_SND_SOC_FSL_SAI) += snd-soc-fsl-sai.o
+obj-$(CONFIG_SND_SOC_FSL_SSI) += snd-soc-fsl-ssi.o
+obj-$(CONFIG_SND_SOC_FSL_SPDIF) += snd-soc-fsl-spdif.o
+obj-$(CONFIG_SND_SOC_FSL_ESAI) += snd-soc-fsl-esai.o
+obj-$(CONFIG_SND_SOC_FSL_MICFIL) += snd-soc-fsl-micfil.o
+obj-$(CONFIG_SND_SOC_FSL_UTILS) += snd-soc-fsl-utils.o
+obj-$(CONFIG_SND_SOC_FSL_MQS) += snd-soc-fsl-mqs.o
+obj-$(CONFIG_SND_SOC_FSL_EASRC) += snd-soc-fsl-easrc.o
+obj-$(CONFIG_SND_SOC_POWERPC_DMA) += snd-soc-fsl-dma.o
+obj-$(CONFIG_SND_SOC_FSL_XCVR) += snd-soc-fsl-xcvr.o
+obj-$(CONFIG_SND_SOC_FSL_AUD2HTX) += snd-soc-fsl-aud2htx.o
+obj-$(CONFIG_SND_SOC_FSL_RPMSG) += snd-soc-fsl-rpmsg.o
+
+# MPC5200 Platform Support
+obj-$(CONFIG_SND_MPC52xx_DMA) += mpc5200_dma.o
+obj-$(CONFIG_SND_SOC_MPC5200_I2S) += mpc5200_psc_i2s.o
+obj-$(CONFIG_SND_SOC_MPC5200_AC97) += mpc5200_psc_ac97.o
+
+# MPC5200 Machine Support
+obj-$(CONFIG_SND_MPC52xx_SOC_PCM030) += pcm030-audio-fabric.o
+obj-$(CONFIG_SND_MPC52xx_SOC_EFIKA) += efika-audio-fabric.o
+
+# i.MX Platform Support
+snd-soc-imx-audmux-objs := imx-audmux.o
+obj-$(CONFIG_SND_SOC_IMX_AUDMUX) += snd-soc-imx-audmux.o
+
+obj-$(CONFIG_SND_SOC_IMX_PCM_FIQ) += imx-pcm-fiq.o
+obj-$(CONFIG_SND_SOC_IMX_PCM_DMA) += imx-pcm-dma.o
+obj-$(CONFIG_SND_SOC_IMX_AUDIO_RPMSG) += imx-audio-rpmsg.o
+obj-$(CONFIG_SND_SOC_IMX_PCM_RPMSG) += imx-pcm-rpmsg.o
+
+# i.MX Machine Support
+snd-soc-eukrea-tlv320-objs := eukrea-tlv320.o
+snd-soc-imx-es8328-objs := imx-es8328.o
+snd-soc-imx-sgtl5000-objs := imx-sgtl5000.o
+snd-soc-imx-spdif-objs := imx-spdif.o
+snd-soc-imx-audmix-objs := imx-audmix.o
+snd-soc-imx-hdmi-objs := imx-hdmi.o
+snd-soc-imx-rpmsg-objs := imx-rpmsg.o
+snd-soc-imx-card-objs := imx-card.o
+
+obj-$(CONFIG_SND_SOC_EUKREA_TLV320) += snd-soc-eukrea-tlv320.o
+obj-$(CONFIG_SND_SOC_IMX_ES8328) += snd-soc-imx-es8328.o
+obj-$(CONFIG_SND_SOC_IMX_SGTL5000) += snd-soc-imx-sgtl5000.o
+obj-$(CONFIG_SND_SOC_IMX_SPDIF) += snd-soc-imx-spdif.o
+obj-$(CONFIG_SND_SOC_IMX_AUDMIX) += snd-soc-imx-audmix.o
+obj-$(CONFIG_SND_SOC_IMX_HDMI) += snd-soc-imx-hdmi.o
+obj-$(CONFIG_SND_SOC_IMX_RPMSG) += snd-soc-imx-rpmsg.o
+obj-$(CONFIG_SND_SOC_IMX_CARD) += snd-soc-imx-card.o
diff --git a/sound/soc/fsl/efika-audio-fabric.c b/sound/soc/fsl/efika-audio-fabric.c
new file mode 100644
index 000000000..8f6396fae
--- /dev/null
+++ b/sound/soc/fsl/efika-audio-fabric.c
@@ -0,0 +1,95 @@
+/*
+ * Efika driver for the PSC of the Freescale MPC52xx
+ * configured as AC97 interface
+ *
+ * Copyright 2008 Jon Smirl, Digispeaker
+ * Author: Jon Smirl <jonsmirl@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/dma-mapping.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include "mpc5200_dma.h"
+
+#define DRV_NAME "efika-audio-fabric"
+
+SND_SOC_DAILINK_DEFS(analog,
+	DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
+				      "stac9766-hifi-analog")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
+
+SND_SOC_DAILINK_DEFS(iec958,
+	DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("stac9766-codec",
+				      "stac9766-hifi-IEC958")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("mpc5200-pcm-audio")));
+
+static struct snd_soc_dai_link efika_fabric_dai[] = {
+{
+	.name = "AC97",
+	.stream_name = "AC97 Analog",
+	SND_SOC_DAILINK_REG(analog),
+},
+{
+	.name = "AC97",
+	.stream_name = "AC97 IEC958",
+	SND_SOC_DAILINK_REG(iec958),
+},
+};
+
+static struct snd_soc_card card = {
+	.name = "Efika",
+	.owner = THIS_MODULE,
+	.dai_link = efika_fabric_dai,
+	.num_links = ARRAY_SIZE(efika_fabric_dai),
+};
+
+static __init int efika_fabric_init(void)
+{
+	struct platform_device *pdev;
+	int rc;
+
+	if (!of_machine_is_compatible("bplan,efika"))
+		return -ENODEV;
+
+	pdev = platform_device_alloc("soc-audio", 1);
+	if (!pdev) {
+		pr_err("efika_fabric_init: platform_device_alloc() failed\n");
+		return -ENODEV;
+	}
+
+	platform_set_drvdata(pdev, &card);
+
+	rc = platform_device_add(pdev);
+	if (rc) {
+		pr_err("efika_fabric_init: platform_device_add() failed\n");
+		platform_device_put(pdev);
+		return -ENODEV;
+	}
+	return 0;
+}
+
+module_init(efika_fabric_init);
+
+
+MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
+MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
+MODULE_LICENSE("GPL");
+
diff --git a/sound/soc/fsl/eukrea-tlv320.c b/sound/soc/fsl/eukrea-tlv320.c
new file mode 100644
index 000000000..9af4c4a35
--- /dev/null
+++ b/sound/soc/fsl/eukrea-tlv320.c
@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// eukrea-tlv320.c  --  SoC audio for eukrea_cpuimxXX in I2S mode
+//
+// Copyright 2010 Eric Bénard, Eukréa Electromatique <eric@eukrea.com>
+//
+// based on sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c
+// which is Copyright 2009 Simtec Electronics
+// and on sound/soc/imx/phycore-ac97.c which is
+// Copyright 2009 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
+
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <asm/mach-types.h>
+
+#include "../codecs/tlv320aic23.h"
+#include "imx-ssi.h"
+#include "imx-audmux.h"
+
+#define CODEC_CLOCK 12000000
+
+static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
+			    struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	int ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
+				     CODEC_CLOCK, SND_SOC_CLOCK_OUT);
+	if (ret) {
+		dev_err(cpu_dai->dev,
+			"Failed to set the codec sysclk.\n");
+		return ret;
+	}
+
+	snd_soc_dai_set_tdm_slot(cpu_dai, 0x3, 0x3, 2, 0);
+
+	ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
+				SND_SOC_CLOCK_IN);
+	/* fsl_ssi lacks the set_sysclk ops */
+	if (ret && ret != -EINVAL) {
+		dev_err(cpu_dai->dev,
+			"Can't set the IMX_SSP_SYS_CLK CPU system clock.\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_ops eukrea_tlv320_snd_ops = {
+	.hw_params	= eukrea_tlv320_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(hifi,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic23-hifi")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link eukrea_tlv320_dai = {
+	.name		= "tlv320aic23",
+	.stream_name	= "TLV320AIC23",
+	.dai_fmt	= SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			  SND_SOC_DAIFMT_CBP_CFP,
+	.ops		= &eukrea_tlv320_snd_ops,
+	SND_SOC_DAILINK_REG(hifi),
+};
+
+static struct snd_soc_card eukrea_tlv320 = {
+	.owner		= THIS_MODULE,
+	.dai_link	= &eukrea_tlv320_dai,
+	.num_links	= 1,
+};
+
+static int eukrea_tlv320_probe(struct platform_device *pdev)
+{
+	int ret;
+	int int_port = 0, ext_port;
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *ssi_np = NULL, *codec_np = NULL, *tmp_np = NULL;
+
+	eukrea_tlv320.dev = &pdev->dev;
+	if (np) {
+		ret = snd_soc_of_parse_card_name(&eukrea_tlv320,
+						 "eukrea,model");
+		if (ret) {
+			dev_err(&pdev->dev,
+				"eukrea,model node missing or invalid.\n");
+			goto err;
+		}
+
+		ssi_np = of_parse_phandle(pdev->dev.of_node,
+					  "ssi-controller", 0);
+		if (!ssi_np) {
+			dev_err(&pdev->dev,
+				"ssi-controller missing or invalid.\n");
+			ret = -ENODEV;
+			goto err;
+		}
+
+		codec_np = of_parse_phandle(ssi_np, "codec-handle", 0);
+		if (codec_np)
+			eukrea_tlv320_dai.codecs->of_node = codec_np;
+		else
+			dev_err(&pdev->dev, "codec-handle node missing or invalid.\n");
+
+		ret = of_property_read_u32(np, "fsl,mux-int-port", &int_port);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"fsl,mux-int-port node missing or invalid.\n");
+			goto err;
+		}
+		ret = of_property_read_u32(np, "fsl,mux-ext-port", &ext_port);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"fsl,mux-ext-port node missing or invalid.\n");
+			goto err;
+		}
+
+		/*
+		 * The port numbering in the hardware manual starts at 1, while
+		 * the audmux API expects it starts at 0.
+		 */
+		int_port--;
+		ext_port--;
+
+		eukrea_tlv320_dai.cpus->of_node = ssi_np;
+		eukrea_tlv320_dai.platforms->of_node = ssi_np;
+	} else {
+		eukrea_tlv320_dai.cpus->dai_name = "imx-ssi.0";
+		eukrea_tlv320_dai.platforms->name = "imx-ssi.0";
+		eukrea_tlv320_dai.codecs->name = "tlv320aic23-codec.0-001a";
+		eukrea_tlv320.name = "cpuimx-audio";
+	}
+
+	if (machine_is_eukrea_cpuimx27() ||
+	    (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx21-audmux"))) {
+		imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
+			IMX_AUDMUX_V1_PCR_SYN |
+			IMX_AUDMUX_V1_PCR_TFSDIR |
+			IMX_AUDMUX_V1_PCR_TCLKDIR |
+			IMX_AUDMUX_V1_PCR_RFSDIR |
+			IMX_AUDMUX_V1_PCR_RCLKDIR |
+			IMX_AUDMUX_V1_PCR_TFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
+			IMX_AUDMUX_V1_PCR_RFCSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4) |
+			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR3_SSI_PINS_4)
+		);
+		imx_audmux_v1_configure_port(MX27_AUDMUX_HPCR3_SSI_PINS_4,
+			IMX_AUDMUX_V1_PCR_SYN |
+			IMX_AUDMUX_V1_PCR_RXDSEL(MX27_AUDMUX_HPCR1_SSI0)
+		);
+		of_node_put(tmp_np);
+	} else if (machine_is_eukrea_cpuimx25sd() ||
+		   machine_is_eukrea_cpuimx35sd() ||
+		   machine_is_eukrea_cpuimx51sd() ||
+		   (tmp_np = of_find_compatible_node(NULL, NULL, "fsl,imx31-audmux"))) {
+		if (!np)
+			ext_port = machine_is_eukrea_cpuimx25sd() ?
+				4 : 3;
+
+		imx_audmux_v2_configure_port(int_port,
+			IMX_AUDMUX_V2_PTCR_SYN |
+			IMX_AUDMUX_V2_PTCR_TFSDIR |
+			IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
+			IMX_AUDMUX_V2_PTCR_TCLKDIR |
+			IMX_AUDMUX_V2_PTCR_TCSEL(ext_port),
+			IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)
+		);
+		imx_audmux_v2_configure_port(ext_port,
+			IMX_AUDMUX_V2_PTCR_SYN,
+			IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)
+		);
+		of_node_put(tmp_np);
+	} else {
+		if (np) {
+			/* The eukrea,asoc-tlv320 driver was explicitly
+			 * requested (through the device tree).
+			 */
+			dev_err(&pdev->dev,
+				"Missing or invalid audmux DT node.\n");
+			return -ENODEV;
+		} else {
+			/* Return happy.
+			 * We might run on a totally different machine.
+			 */
+			return 0;
+		}
+	}
+
+	ret = snd_soc_register_card(&eukrea_tlv320);
+err:
+	if (ret)
+		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+	of_node_put(ssi_np);
+
+	return ret;
+}
+
+static int eukrea_tlv320_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_card(&eukrea_tlv320);
+
+	return 0;
+}
+
+static const struct of_device_id imx_tlv320_dt_ids[] = {
+	{ .compatible = "eukrea,asoc-tlv320"},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_tlv320_dt_ids);
+
+static struct platform_driver eukrea_tlv320_driver = {
+	.driver = {
+		.name = "eukrea_tlv320",
+		.of_match_table = imx_tlv320_dt_ids,
+	},
+	.probe = eukrea_tlv320_probe,
+	.remove = eukrea_tlv320_remove,
+};
+
+module_platform_driver(eukrea_tlv320_driver);
+
+MODULE_AUTHOR("Eric Bénard <eric@eukrea.com>");
+MODULE_DESCRIPTION("CPUIMX ALSA SoC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:eukrea_tlv320");
diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c
new file mode 100644
index 000000000..8d14b5593
--- /dev/null
+++ b/sound/soc/fsl/fsl-asoc-card.c
@@ -0,0 +1,928 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale Generic ASoC Sound Card driver with ASRC
+//
+// Copyright (C) 2014 Freescale Semiconductor, Inc.
+//
+// Author: Nicolin Chen <nicoleotsuka@gmail.com>
+
+#include <linux/clk.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
+#include <sound/ac97_codec.h>
+#endif
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/simple_card_utils.h>
+
+#include "fsl_esai.h"
+#include "fsl_sai.h"
+#include "imx-audmux.h"
+
+#include "../codecs/sgtl5000.h"
+#include "../codecs/wm8962.h"
+#include "../codecs/wm8960.h"
+#include "../codecs/wm8994.h"
+#include "../codecs/tlv320aic31xx.h"
+
+#define CS427x_SYSCLK_MCLK 0
+
+#define RX 0
+#define TX 1
+
+/* Default DAI format without Master and Slave flag */
+#define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF)
+
+/**
+ * struct codec_priv - CODEC private data
+ * @mclk_freq: Clock rate of MCLK
+ * @free_freq: Clock rate of MCLK for hw_free()
+ * @mclk_id: MCLK (or main clock) id for set_sysclk()
+ * @fll_id: FLL (or secordary clock) id for set_sysclk()
+ * @pll_id: PLL id for set_pll()
+ */
+struct codec_priv {
+	unsigned long mclk_freq;
+	unsigned long free_freq;
+	u32 mclk_id;
+	u32 fll_id;
+	u32 pll_id;
+};
+
+/**
+ * struct cpu_priv - CPU private data
+ * @sysclk_freq: SYSCLK rates for set_sysclk()
+ * @sysclk_dir: SYSCLK directions for set_sysclk()
+ * @sysclk_id: SYSCLK ids for set_sysclk()
+ * @slot_width: Slot width of each frame
+ *
+ * Note: [1] for tx and [0] for rx
+ */
+struct cpu_priv {
+	unsigned long sysclk_freq[2];
+	u32 sysclk_dir[2];
+	u32 sysclk_id[2];
+	u32 slot_width;
+};
+
+/**
+ * struct fsl_asoc_card_priv - Freescale Generic ASOC card private data
+ * @dai_link: DAI link structure including normal one and DPCM link
+ * @hp_jack: Headphone Jack structure
+ * @mic_jack: Microphone Jack structure
+ * @pdev: platform device pointer
+ * @codec_priv: CODEC private data
+ * @cpu_priv: CPU private data
+ * @card: ASoC card structure
+ * @streams: Mask of current active streams
+ * @sample_rate: Current sample rate
+ * @sample_format: Current sample format
+ * @asrc_rate: ASRC sample rate used by Back-Ends
+ * @asrc_format: ASRC sample format used by Back-Ends
+ * @dai_fmt: DAI format between CPU and CODEC
+ * @name: Card name
+ */
+
+struct fsl_asoc_card_priv {
+	struct snd_soc_dai_link dai_link[3];
+	struct asoc_simple_jack hp_jack;
+	struct asoc_simple_jack mic_jack;
+	struct platform_device *pdev;
+	struct codec_priv codec_priv;
+	struct cpu_priv cpu_priv;
+	struct snd_soc_card card;
+	u8 streams;
+	u32 sample_rate;
+	snd_pcm_format_t sample_format;
+	u32 asrc_rate;
+	snd_pcm_format_t asrc_format;
+	u32 dai_fmt;
+	char name[32];
+};
+
+/*
+ * This dapm route map exists for DPCM link only.
+ * The other routes shall go through Device Tree.
+ *
+ * Note: keep all ASRC routes in the second half
+ *	 to drop them easily for non-ASRC cases.
+ */
+static const struct snd_soc_dapm_route audio_map[] = {
+	/* 1st half -- Normal DAPM routes */
+	{"Playback",  NULL, "CPU-Playback"},
+	{"CPU-Capture",  NULL, "Capture"},
+	/* 2nd half -- ASRC DAPM routes */
+	{"CPU-Playback",  NULL, "ASRC-Playback"},
+	{"ASRC-Capture",  NULL, "CPU-Capture"},
+};
+
+static const struct snd_soc_dapm_route audio_map_ac97[] = {
+	/* 1st half -- Normal DAPM routes */
+	{"AC97 Playback",  NULL, "CPU AC97 Playback"},
+	{"CPU AC97 Capture",  NULL, "AC97 Capture"},
+	/* 2nd half -- ASRC DAPM routes */
+	{"CPU AC97 Playback",  NULL, "ASRC-Playback"},
+	{"ASRC-Capture",  NULL, "CPU AC97 Capture"},
+};
+
+static const struct snd_soc_dapm_route audio_map_tx[] = {
+	/* 1st half -- Normal DAPM routes */
+	{"Playback",  NULL, "CPU-Playback"},
+	/* 2nd half -- ASRC DAPM routes */
+	{"CPU-Playback",  NULL, "ASRC-Playback"},
+};
+
+static const struct snd_soc_dapm_route audio_map_rx[] = {
+	/* 1st half -- Normal DAPM routes */
+	{"CPU-Capture",  NULL, "Capture"},
+	/* 2nd half -- ASRC DAPM routes */
+	{"ASRC-Capture",  NULL, "CPU-Capture"},
+};
+
+/* Add all possible widgets into here without being redundant */
+static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = {
+	SND_SOC_DAPM_LINE("Line Out Jack", NULL),
+	SND_SOC_DAPM_LINE("Line In Jack", NULL),
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_SPK("Ext Spk", NULL),
+	SND_SOC_DAPM_MIC("Mic Jack", NULL),
+	SND_SOC_DAPM_MIC("AMIC", NULL),
+	SND_SOC_DAPM_MIC("DMIC", NULL),
+};
+
+static bool fsl_asoc_card_is_ac97(struct fsl_asoc_card_priv *priv)
+{
+	return priv->dai_fmt == SND_SOC_DAIFMT_AC97;
+}
+
+static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
+				   struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	struct codec_priv *codec_priv = &priv->codec_priv;
+	struct cpu_priv *cpu_priv = &priv->cpu_priv;
+	struct device *dev = rtd->card->dev;
+	unsigned int pll_out;
+	int ret;
+
+	priv->sample_rate = params_rate(params);
+	priv->sample_format = params_format(params);
+	priv->streams |= BIT(substream->stream);
+
+	if (fsl_asoc_card_is_ac97(priv))
+		return 0;
+
+	/* Specific configurations of DAIs starts from here */
+	ret = snd_soc_dai_set_sysclk(asoc_rtd_to_cpu(rtd, 0), cpu_priv->sysclk_id[tx],
+				     cpu_priv->sysclk_freq[tx],
+				     cpu_priv->sysclk_dir[tx]);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dev, "failed to set sysclk for cpu dai\n");
+		goto fail;
+	}
+
+	if (cpu_priv->slot_width) {
+		ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2,
+					       cpu_priv->slot_width);
+		if (ret && ret != -ENOTSUPP) {
+			dev_err(dev, "failed to set TDM slot for cpu dai\n");
+			goto fail;
+		}
+	}
+
+	/* Specific configuration for PLL */
+	if (codec_priv->pll_id && codec_priv->fll_id) {
+		if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
+			pll_out = priv->sample_rate * 384;
+		else
+			pll_out = priv->sample_rate * 256;
+
+		ret = snd_soc_dai_set_pll(asoc_rtd_to_codec(rtd, 0),
+					  codec_priv->pll_id,
+					  codec_priv->mclk_id,
+					  codec_priv->mclk_freq, pll_out);
+		if (ret) {
+			dev_err(dev, "failed to start FLL: %d\n", ret);
+			goto fail;
+		}
+
+		ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0),
+					     codec_priv->fll_id,
+					     pll_out, SND_SOC_CLOCK_IN);
+
+		if (ret && ret != -ENOTSUPP) {
+			dev_err(dev, "failed to set SYSCLK: %d\n", ret);
+			goto fail;
+		}
+	}
+
+	return 0;
+
+fail:
+	priv->streams &= ~BIT(substream->stream);
+	return ret;
+}
+
+static int fsl_asoc_card_hw_free(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct codec_priv *codec_priv = &priv->codec_priv;
+	struct device *dev = rtd->card->dev;
+	int ret;
+
+	priv->streams &= ~BIT(substream->stream);
+
+	if (!priv->streams && codec_priv->pll_id && codec_priv->fll_id) {
+		/* Force freq to be free_freq to avoid error message in codec */
+		ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0),
+					     codec_priv->mclk_id,
+					     codec_priv->free_freq,
+					     SND_SOC_CLOCK_IN);
+		if (ret) {
+			dev_err(dev, "failed to switch away from FLL: %d\n", ret);
+			return ret;
+		}
+
+		ret = snd_soc_dai_set_pll(asoc_rtd_to_codec(rtd, 0),
+					  codec_priv->pll_id, 0, 0, 0);
+		if (ret && ret != -ENOTSUPP) {
+			dev_err(dev, "failed to stop FLL: %d\n", ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_ops fsl_asoc_card_ops = {
+	.hw_params = fsl_asoc_card_hw_params,
+	.hw_free = fsl_asoc_card_hw_free,
+};
+
+static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+			      struct snd_pcm_hw_params *params)
+{
+	struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_interval *rate;
+	struct snd_mask *mask;
+
+	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+	rate->max = rate->min = priv->asrc_rate;
+
+	mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+	snd_mask_none(mask);
+	snd_mask_set_format(mask, priv->asrc_format);
+
+	return 0;
+}
+
+SND_SOC_DAILINK_DEFS(hifi,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(hifi_fe,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_DUMMY()),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(hifi_be,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_DUMMY()));
+
+static struct snd_soc_dai_link fsl_asoc_card_dai[] = {
+	/* Default ASoC DAI Link*/
+	{
+		.name = "HiFi",
+		.stream_name = "HiFi",
+		.ops = &fsl_asoc_card_ops,
+		SND_SOC_DAILINK_REG(hifi),
+	},
+	/* DPCM Link between Front-End and Back-End (Optional) */
+	{
+		.name = "HiFi-ASRC-FE",
+		.stream_name = "HiFi-ASRC-FE",
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+		.dynamic = 1,
+		SND_SOC_DAILINK_REG(hifi_fe),
+	},
+	{
+		.name = "HiFi-ASRC-BE",
+		.stream_name = "HiFi-ASRC-BE",
+		.be_hw_params_fixup = be_hw_params_fixup,
+		.ops = &fsl_asoc_card_ops,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+		.no_pcm = 1,
+		SND_SOC_DAILINK_REG(hifi_be),
+	},
+};
+
+static int fsl_asoc_card_audmux_init(struct device_node *np,
+				     struct fsl_asoc_card_priv *priv)
+{
+	struct device *dev = &priv->pdev->dev;
+	u32 int_ptcr = 0, ext_ptcr = 0;
+	int int_port, ext_port;
+	int ret;
+
+	ret = of_property_read_u32(np, "mux-int-port", &int_port);
+	if (ret) {
+		dev_err(dev, "mux-int-port missing or invalid\n");
+		return ret;
+	}
+	ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
+	if (ret) {
+		dev_err(dev, "mux-ext-port missing or invalid\n");
+		return ret;
+	}
+
+	/*
+	 * The port numbering in the hardware manual starts at 1, while
+	 * the AUDMUX API expects it starts at 0.
+	 */
+	int_port--;
+	ext_port--;
+
+	/*
+	 * Use asynchronous mode (6 wires) for all cases except AC97.
+	 * If only 4 wires are needed, just set SSI into
+	 * synchronous mode and enable 4 PADs in IOMUX.
+	 */
+	switch (priv->dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_CBP_CFP:
+		int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
+			   IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
+			   IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
+			   IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
+			   IMX_AUDMUX_V2_PTCR_RFSDIR |
+			   IMX_AUDMUX_V2_PTCR_RCLKDIR |
+			   IMX_AUDMUX_V2_PTCR_TFSDIR |
+			   IMX_AUDMUX_V2_PTCR_TCLKDIR;
+		break;
+	case SND_SOC_DAIFMT_CBP_CFC:
+		int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
+			   IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
+			   IMX_AUDMUX_V2_PTCR_RCLKDIR |
+			   IMX_AUDMUX_V2_PTCR_TCLKDIR;
+		ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
+			   IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
+			   IMX_AUDMUX_V2_PTCR_RFSDIR |
+			   IMX_AUDMUX_V2_PTCR_TFSDIR;
+		break;
+	case SND_SOC_DAIFMT_CBC_CFP:
+		int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
+			   IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
+			   IMX_AUDMUX_V2_PTCR_RFSDIR |
+			   IMX_AUDMUX_V2_PTCR_TFSDIR;
+		ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
+			   IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
+			   IMX_AUDMUX_V2_PTCR_RCLKDIR |
+			   IMX_AUDMUX_V2_PTCR_TCLKDIR;
+		break;
+	case SND_SOC_DAIFMT_CBC_CFC:
+		ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
+			   IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
+			   IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
+			   IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
+			   IMX_AUDMUX_V2_PTCR_RFSDIR |
+			   IMX_AUDMUX_V2_PTCR_RCLKDIR |
+			   IMX_AUDMUX_V2_PTCR_TFSDIR |
+			   IMX_AUDMUX_V2_PTCR_TCLKDIR;
+		break;
+	default:
+		if (!fsl_asoc_card_is_ac97(priv))
+			return -EINVAL;
+	}
+
+	if (fsl_asoc_card_is_ac97(priv)) {
+		int_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
+			   IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
+			   IMX_AUDMUX_V2_PTCR_TCLKDIR;
+		ext_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
+			   IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
+			   IMX_AUDMUX_V2_PTCR_TFSDIR;
+	}
+
+	/* Asynchronous mode can not be set along with RCLKDIR */
+	if (!fsl_asoc_card_is_ac97(priv)) {
+		unsigned int pdcr =
+				IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port);
+
+		ret = imx_audmux_v2_configure_port(int_port, 0,
+						   pdcr);
+		if (ret) {
+			dev_err(dev, "audmux internal port setup failed\n");
+			return ret;
+		}
+	}
+
+	ret = imx_audmux_v2_configure_port(int_port, int_ptcr,
+					   IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
+	if (ret) {
+		dev_err(dev, "audmux internal port setup failed\n");
+		return ret;
+	}
+
+	if (!fsl_asoc_card_is_ac97(priv)) {
+		unsigned int pdcr =
+				IMX_AUDMUX_V2_PDCR_RXDSEL(int_port);
+
+		ret = imx_audmux_v2_configure_port(ext_port, 0,
+						   pdcr);
+		if (ret) {
+			dev_err(dev, "audmux external port setup failed\n");
+			return ret;
+		}
+	}
+
+	ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr,
+					   IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
+	if (ret) {
+		dev_err(dev, "audmux external port setup failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int hp_jack_event(struct notifier_block *nb, unsigned long event,
+			 void *data)
+{
+	struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
+	struct snd_soc_dapm_context *dapm = &jack->card->dapm;
+
+	if (event & SND_JACK_HEADPHONE)
+		/* Disable speaker if headphone is plugged in */
+		return snd_soc_dapm_disable_pin(dapm, "Ext Spk");
+	else
+		return snd_soc_dapm_enable_pin(dapm, "Ext Spk");
+}
+
+static struct notifier_block hp_jack_nb = {
+	.notifier_call = hp_jack_event,
+};
+
+static int mic_jack_event(struct notifier_block *nb, unsigned long event,
+			  void *data)
+{
+	struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
+	struct snd_soc_dapm_context *dapm = &jack->card->dapm;
+
+	if (event & SND_JACK_MICROPHONE)
+		/* Disable dmic if microphone is plugged in */
+		return snd_soc_dapm_disable_pin(dapm, "DMIC");
+	else
+		return snd_soc_dapm_enable_pin(dapm, "DMIC");
+}
+
+static struct notifier_block mic_jack_nb = {
+	.notifier_call = mic_jack_event,
+};
+
+static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
+{
+	struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
+	struct snd_soc_pcm_runtime *rtd = list_first_entry(
+			&card->rtd_list, struct snd_soc_pcm_runtime, list);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct codec_priv *codec_priv = &priv->codec_priv;
+	struct device *dev = card->dev;
+	int ret;
+
+	if (fsl_asoc_card_is_ac97(priv)) {
+#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
+		struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
+		struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
+
+		/*
+		 * Use slots 3/4 for S/PDIF so SSI won't try to enable
+		 * other slots and send some samples there
+		 * due to SLOTREQ bits for S/PDIF received from codec
+		 */
+		snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
+				     AC97_EA_SPSA_SLOT_MASK, AC97_EA_SPSA_3_4);
+#endif
+
+		return 0;
+	}
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
+				     codec_priv->mclk_freq, SND_SOC_CLOCK_IN);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dev, "failed to set sysclk in %s\n", __func__);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int fsl_asoc_card_probe(struct platform_device *pdev)
+{
+	struct device_node *cpu_np, *codec_np, *asrc_np;
+	struct device_node *np = pdev->dev.of_node;
+	struct platform_device *asrc_pdev = NULL;
+	struct device_node *bitclkprovider = NULL;
+	struct device_node *frameprovider = NULL;
+	struct platform_device *cpu_pdev;
+	struct fsl_asoc_card_priv *priv;
+	struct device *codec_dev = NULL;
+	const char *codec_dai_name;
+	const char *codec_dev_name;
+	u32 asrc_fmt = 0;
+	u32 width;
+	int ret;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	cpu_np = of_parse_phandle(np, "audio-cpu", 0);
+	/* Give a chance to old DT binding */
+	if (!cpu_np)
+		cpu_np = of_parse_phandle(np, "ssi-controller", 0);
+	if (!cpu_np) {
+		dev_err(&pdev->dev, "CPU phandle missing or invalid\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	cpu_pdev = of_find_device_by_node(cpu_np);
+	if (!cpu_pdev) {
+		dev_err(&pdev->dev, "failed to find CPU DAI device\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	codec_np = of_parse_phandle(np, "audio-codec", 0);
+	if (codec_np) {
+		struct platform_device *codec_pdev;
+		struct i2c_client *codec_i2c;
+
+		codec_i2c = of_find_i2c_device_by_node(codec_np);
+		if (codec_i2c) {
+			codec_dev = &codec_i2c->dev;
+			codec_dev_name = codec_i2c->name;
+		}
+		if (!codec_dev) {
+			codec_pdev = of_find_device_by_node(codec_np);
+			if (codec_pdev) {
+				codec_dev = &codec_pdev->dev;
+				codec_dev_name = codec_pdev->name;
+			}
+		}
+	}
+
+	asrc_np = of_parse_phandle(np, "audio-asrc", 0);
+	if (asrc_np)
+		asrc_pdev = of_find_device_by_node(asrc_np);
+
+	/* Get the MCLK rate only, and leave it controlled by CODEC drivers */
+	if (codec_dev) {
+		struct clk *codec_clk = clk_get(codec_dev, NULL);
+
+		if (!IS_ERR(codec_clk)) {
+			priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
+			clk_put(codec_clk);
+		}
+	}
+
+	/* Default sample rate and format, will be updated in hw_params() */
+	priv->sample_rate = 44100;
+	priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
+
+	/* Assign a default DAI format, and allow each card to overwrite it */
+	priv->dai_fmt = DAI_FMT_BASE;
+
+	memcpy(priv->dai_link, fsl_asoc_card_dai,
+	       sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
+
+	priv->card.dapm_routes = audio_map;
+	priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
+	/* Diversify the card configurations */
+	if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
+		codec_dai_name = "cs42888";
+		priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
+		priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
+		priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
+		priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
+		priv->cpu_priv.slot_width = 32;
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-cs427x")) {
+		codec_dai_name = "cs4271-hifi";
+		priv->codec_priv.mclk_id = CS427x_SYSCLK_MCLK;
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) {
+		codec_dai_name = "sgtl5000";
+		priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-tlv320aic32x4")) {
+		codec_dai_name = "tlv320aic32x4-hifi";
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-tlv320aic31xx")) {
+		codec_dai_name = "tlv320dac31xx-hifi";
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
+		priv->dai_link[1].dpcm_capture = 0;
+		priv->dai_link[2].dpcm_capture = 0;
+		priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
+		priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
+		priv->card.dapm_routes = audio_map_tx;
+		priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) {
+		codec_dai_name = "wm8962";
+		priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
+		priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
+		priv->codec_priv.pll_id = WM8962_FLL;
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) {
+		codec_dai_name = "wm8960-hifi";
+		priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
+		priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-ac97")) {
+		codec_dai_name = "ac97-hifi";
+		priv->dai_fmt = SND_SOC_DAIFMT_AC97;
+		priv->card.dapm_routes = audio_map_ac97;
+		priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_ac97);
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-mqs")) {
+		codec_dai_name = "fsl-mqs-dai";
+		priv->dai_fmt = SND_SOC_DAIFMT_LEFT_J |
+				SND_SOC_DAIFMT_CBC_CFC |
+				SND_SOC_DAIFMT_NB_NF;
+		priv->dai_link[1].dpcm_capture = 0;
+		priv->dai_link[2].dpcm_capture = 0;
+		priv->card.dapm_routes = audio_map_tx;
+		priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-wm8524")) {
+		codec_dai_name = "wm8524-hifi";
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
+		priv->dai_link[1].dpcm_capture = 0;
+		priv->dai_link[2].dpcm_capture = 0;
+		priv->cpu_priv.slot_width = 32;
+		priv->card.dapm_routes = audio_map_tx;
+		priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_tx);
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-si476x")) {
+		codec_dai_name = "si476x-codec";
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
+		priv->card.dapm_routes = audio_map_rx;
+		priv->card.num_dapm_routes = ARRAY_SIZE(audio_map_rx);
+	} else if (of_device_is_compatible(np, "fsl,imx-audio-wm8958")) {
+		codec_dai_name = "wm8994-aif1";
+		priv->dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
+		priv->codec_priv.mclk_id = WM8994_FLL_SRC_MCLK1;
+		priv->codec_priv.fll_id = WM8994_SYSCLK_FLL1;
+		priv->codec_priv.pll_id = WM8994_FLL1;
+		priv->codec_priv.free_freq = priv->codec_priv.mclk_freq;
+		priv->card.dapm_routes = NULL;
+		priv->card.num_dapm_routes = 0;
+	} else {
+		dev_err(&pdev->dev, "unknown Device Tree compatible\n");
+		ret = -EINVAL;
+		goto asrc_fail;
+	}
+
+	/*
+	 * Allow setting mclk-id from the device-tree node. Otherwise, the
+	 * default value for each card configuration is used.
+	 */
+	of_property_read_u32(np, "mclk-id", &priv->codec_priv.mclk_id);
+
+	/* Format info from DT is optional. */
+	snd_soc_daifmt_parse_clock_provider_as_phandle(np, NULL, &bitclkprovider, &frameprovider);
+	if (bitclkprovider || frameprovider) {
+		unsigned int daifmt = snd_soc_daifmt_parse_format(np, NULL);
+
+		if (codec_np == bitclkprovider)
+			daifmt |= (codec_np == frameprovider) ?
+				SND_SOC_DAIFMT_CBP_CFP : SND_SOC_DAIFMT_CBP_CFC;
+		else
+			daifmt |= (codec_np == frameprovider) ?
+				SND_SOC_DAIFMT_CBC_CFP : SND_SOC_DAIFMT_CBC_CFC;
+
+		/* Override dai_fmt with value from DT */
+		priv->dai_fmt = daifmt;
+	}
+
+	/* Change direction according to format */
+	if (priv->dai_fmt & SND_SOC_DAIFMT_CBP_CFP) {
+		priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_IN;
+		priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_IN;
+	}
+
+	of_node_put(bitclkprovider);
+	of_node_put(frameprovider);
+
+	if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
+		dev_dbg(&pdev->dev, "failed to find codec device\n");
+		ret = -EPROBE_DEFER;
+		goto asrc_fail;
+	}
+
+	/* Common settings for corresponding Freescale CPU DAI driver */
+	if (of_node_name_eq(cpu_np, "ssi")) {
+		/* Only SSI needs to configure AUDMUX */
+		ret = fsl_asoc_card_audmux_init(np, priv);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to init audmux\n");
+			goto asrc_fail;
+		}
+	} else if (of_node_name_eq(cpu_np, "esai")) {
+		struct clk *esai_clk = clk_get(&cpu_pdev->dev, "extal");
+
+		if (!IS_ERR(esai_clk)) {
+			priv->cpu_priv.sysclk_freq[TX] = clk_get_rate(esai_clk);
+			priv->cpu_priv.sysclk_freq[RX] = clk_get_rate(esai_clk);
+			clk_put(esai_clk);
+		} else if (PTR_ERR(esai_clk) == -EPROBE_DEFER) {
+			ret = -EPROBE_DEFER;
+			goto asrc_fail;
+		}
+
+		priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
+		priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
+	} else if (of_node_name_eq(cpu_np, "sai")) {
+		priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
+		priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
+	}
+
+	/* Initialize sound card */
+	priv->pdev = pdev;
+	priv->card.dev = &pdev->dev;
+	priv->card.owner = THIS_MODULE;
+	ret = snd_soc_of_parse_card_name(&priv->card, "model");
+	if (ret) {
+		snprintf(priv->name, sizeof(priv->name), "%s-audio",
+			 fsl_asoc_card_is_ac97(priv) ? "ac97" : codec_dev_name);
+		priv->card.name = priv->name;
+	}
+	priv->card.dai_link = priv->dai_link;
+	priv->card.late_probe = fsl_asoc_card_late_probe;
+	priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
+	priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
+
+	/* Drop the second half of DAPM routes -- ASRC */
+	if (!asrc_pdev)
+		priv->card.num_dapm_routes /= 2;
+
+	if (of_property_read_bool(np, "audio-routing")) {
+		ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
+		if (ret) {
+			dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
+			goto asrc_fail;
+		}
+	}
+
+	/* Normal DAI Link */
+	priv->dai_link[0].cpus->of_node = cpu_np;
+	priv->dai_link[0].codecs->dai_name = codec_dai_name;
+
+	if (!fsl_asoc_card_is_ac97(priv))
+		priv->dai_link[0].codecs->of_node = codec_np;
+	else {
+		u32 idx;
+
+		ret = of_property_read_u32(cpu_np, "cell-index", &idx);
+		if (ret) {
+			dev_err(&pdev->dev,
+				"cannot get CPU index property\n");
+			goto asrc_fail;
+		}
+
+		priv->dai_link[0].codecs->name =
+				devm_kasprintf(&pdev->dev, GFP_KERNEL,
+					       "ac97-codec.%u",
+					       (unsigned int)idx);
+		if (!priv->dai_link[0].codecs->name) {
+			ret = -ENOMEM;
+			goto asrc_fail;
+		}
+	}
+
+	priv->dai_link[0].platforms->of_node = cpu_np;
+	priv->dai_link[0].dai_fmt = priv->dai_fmt;
+	priv->card.num_links = 1;
+
+	if (asrc_pdev) {
+		/* DPCM DAI Links only if ASRC exsits */
+		priv->dai_link[1].cpus->of_node = asrc_np;
+		priv->dai_link[1].platforms->of_node = asrc_np;
+		priv->dai_link[2].codecs->dai_name = codec_dai_name;
+		priv->dai_link[2].codecs->of_node = codec_np;
+		priv->dai_link[2].codecs->name =
+				priv->dai_link[0].codecs->name;
+		priv->dai_link[2].cpus->of_node = cpu_np;
+		priv->dai_link[2].dai_fmt = priv->dai_fmt;
+		priv->card.num_links = 3;
+
+		ret = of_property_read_u32(asrc_np, "fsl,asrc-rate",
+					   &priv->asrc_rate);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to get output rate\n");
+			ret = -EINVAL;
+			goto asrc_fail;
+		}
+
+		ret = of_property_read_u32(asrc_np, "fsl,asrc-format", &asrc_fmt);
+		priv->asrc_format = (__force snd_pcm_format_t)asrc_fmt;
+		if (ret) {
+			/* Fallback to old binding; translate to asrc_format */
+			ret = of_property_read_u32(asrc_np, "fsl,asrc-width",
+						   &width);
+			if (ret) {
+				dev_err(&pdev->dev,
+					"failed to decide output format\n");
+				goto asrc_fail;
+			}
+
+			if (width == 24)
+				priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+			else
+				priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
+		}
+	}
+
+	/* Finish card registering */
+	platform_set_drvdata(pdev, priv);
+	snd_soc_card_set_drvdata(&priv->card, priv);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");
+		goto asrc_fail;
+	}
+
+	/*
+	 * Properties "hp-det-gpio" and "mic-det-gpio" are optional, and
+	 * asoc_simple_init_jack uses these properties for creating
+	 * Headphone Jack and Microphone Jack.
+	 *
+	 * The notifier is initialized in snd_soc_card_jack_new(), then
+	 * snd_soc_jack_notifier_register can be called.
+	 */
+	if (of_property_read_bool(np, "hp-det-gpio")) {
+		ret = asoc_simple_init_jack(&priv->card, &priv->hp_jack,
+					    1, NULL, "Headphone Jack");
+		if (ret)
+			goto asrc_fail;
+
+		snd_soc_jack_notifier_register(&priv->hp_jack.jack, &hp_jack_nb);
+	}
+
+	if (of_property_read_bool(np, "mic-det-gpio")) {
+		ret = asoc_simple_init_jack(&priv->card, &priv->mic_jack,
+					    0, NULL, "Mic Jack");
+		if (ret)
+			goto asrc_fail;
+
+		snd_soc_jack_notifier_register(&priv->mic_jack.jack, &mic_jack_nb);
+	}
+
+asrc_fail:
+	of_node_put(asrc_np);
+	of_node_put(codec_np);
+	put_device(&cpu_pdev->dev);
+fail:
+	of_node_put(cpu_np);
+
+	return ret;
+}
+
+static const struct of_device_id fsl_asoc_card_dt_ids[] = {
+	{ .compatible = "fsl,imx-audio-ac97", },
+	{ .compatible = "fsl,imx-audio-cs42888", },
+	{ .compatible = "fsl,imx-audio-cs427x", },
+	{ .compatible = "fsl,imx-audio-tlv320aic32x4", },
+	{ .compatible = "fsl,imx-audio-tlv320aic31xx", },
+	{ .compatible = "fsl,imx-audio-sgtl5000", },
+	{ .compatible = "fsl,imx-audio-wm8962", },
+	{ .compatible = "fsl,imx-audio-wm8960", },
+	{ .compatible = "fsl,imx-audio-mqs", },
+	{ .compatible = "fsl,imx-audio-wm8524", },
+	{ .compatible = "fsl,imx-audio-si476x", },
+	{ .compatible = "fsl,imx-audio-wm8958", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
+
+static struct platform_driver fsl_asoc_card_driver = {
+	.probe = fsl_asoc_card_probe,
+	.driver = {
+		.name = "fsl-asoc-card",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = fsl_asoc_card_dt_ids,
+	},
+};
+module_platform_driver(fsl_asoc_card_driver);
+
+MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC");
+MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>");
+MODULE_ALIAS("platform:fsl-asoc-card");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/fsl/fsl_asrc.c b/sound/soc/fsl/fsl_asrc.c
new file mode 100644
index 000000000..e16e7b3fa
--- /dev/null
+++ b/sound/soc/fsl/fsl_asrc.c
@@ -0,0 +1,1409 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale ASRC ALSA SoC Digital Audio Interface (DAI) driver
+//
+// Copyright (C) 2014 Freescale Semiconductor, Inc.
+//
+// Author: Nicolin Chen <nicoleotsuka@gmail.com>
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/dma/imx-dma.h>
+#include <linux/pm_runtime.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+
+#include "fsl_asrc.h"
+
+#define IDEAL_RATIO_DECIMAL_DEPTH 26
+#define DIVIDER_NUM  64
+#define INIT_RETRY_NUM 50
+
+#define pair_err(fmt, ...) \
+	dev_err(&asrc->pdev->dev, "Pair %c: " fmt, 'A' + index, ##__VA_ARGS__)
+
+#define pair_dbg(fmt, ...) \
+	dev_dbg(&asrc->pdev->dev, "Pair %c: " fmt, 'A' + index, ##__VA_ARGS__)
+
+#define pair_warn(fmt, ...) \
+	dev_warn(&asrc->pdev->dev, "Pair %c: " fmt, 'A' + index, ##__VA_ARGS__)
+
+/* Corresponding to process_option */
+static unsigned int supported_asrc_rate[] = {
+	5512, 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000,
+	64000, 88200, 96000, 128000, 176400, 192000,
+};
+
+static struct snd_pcm_hw_constraint_list fsl_asrc_rate_constraints = {
+	.count = ARRAY_SIZE(supported_asrc_rate),
+	.list = supported_asrc_rate,
+};
+
+/*
+ * The following tables map the relationship between asrc_inclk/asrc_outclk in
+ * fsl_asrc.h and the registers of ASRCSR
+ */
+static unsigned char input_clk_map_imx35[ASRC_CLK_MAP_LEN] = {
+	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+};
+
+static unsigned char output_clk_map_imx35[ASRC_CLK_MAP_LEN] = {
+	0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+};
+
+/* i.MX53 uses the same map for input and output */
+static unsigned char input_clk_map_imx53[ASRC_CLK_MAP_LEN] = {
+/*	0x0  0x1  0x2  0x3  0x4  0x5  0x6  0x7  0x8  0x9  0xa  0xb  0xc  0xd  0xe  0xf */
+	0x0, 0x1, 0x2, 0x7, 0x4, 0x5, 0x6, 0x3, 0x8, 0x9, 0xa, 0xb, 0xc, 0xf, 0xe, 0xd,
+	0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7,
+	0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7,
+};
+
+static unsigned char output_clk_map_imx53[ASRC_CLK_MAP_LEN] = {
+/*	0x0  0x1  0x2  0x3  0x4  0x5  0x6  0x7  0x8  0x9  0xa  0xb  0xc  0xd  0xe  0xf */
+	0x8, 0x9, 0xa, 0x7, 0xc, 0x5, 0x6, 0xb, 0x0, 0x1, 0x2, 0x3, 0x4, 0xf, 0xe, 0xd,
+	0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7,
+	0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7, 0x7,
+};
+
+/*
+ * i.MX8QM/i.MX8QXP uses the same map for input and output.
+ * clk_map_imx8qm[0] is for i.MX8QM asrc0
+ * clk_map_imx8qm[1] is for i.MX8QM asrc1
+ * clk_map_imx8qxp[0] is for i.MX8QXP asrc0
+ * clk_map_imx8qxp[1] is for i.MX8QXP asrc1
+ */
+static unsigned char clk_map_imx8qm[2][ASRC_CLK_MAP_LEN] = {
+	{
+	0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x0,
+	0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf,
+	0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	},
+	{
+	0xf, 0xf, 0xf, 0xf, 0xf, 0x7, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x0,
+	0x0, 0x1, 0x2, 0x3, 0xb, 0xc, 0xf, 0xf, 0xd, 0xe, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	0x4, 0x5, 0x6, 0xf, 0x8, 0x9, 0xa, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	},
+};
+
+static unsigned char clk_map_imx8qxp[2][ASRC_CLK_MAP_LEN] = {
+	{
+	0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x0,
+	0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0xf, 0x7, 0x8, 0x9, 0xa, 0xb, 0xc, 0xf, 0xf,
+	0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	},
+	{
+	0xf, 0xf, 0xf, 0xf, 0xf, 0x7, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0x0,
+	0x0, 0x1, 0x2, 0x3, 0x7, 0x8, 0xf, 0xf, 0x9, 0xa, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	0xf, 0xf, 0x6, 0xf, 0xf, 0xf, 0xa, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf, 0xf,
+	},
+};
+
+/*
+ * According to RM, the divider range is 1 ~ 8,
+ * prescaler is power of 2 from 1 ~ 128.
+ */
+static int asrc_clk_divider[DIVIDER_NUM] = {
+	1,  2,  4,  8,  16,  32,  64,  128,  /* divider = 1 */
+	2,  4,  8, 16,  32,  64, 128,  256,  /* divider = 2 */
+	3,  6, 12, 24,  48,  96, 192,  384,  /* divider = 3 */
+	4,  8, 16, 32,  64, 128, 256,  512,  /* divider = 4 */
+	5, 10, 20, 40,  80, 160, 320,  640,  /* divider = 5 */
+	6, 12, 24, 48,  96, 192, 384,  768,  /* divider = 6 */
+	7, 14, 28, 56, 112, 224, 448,  896,  /* divider = 7 */
+	8, 16, 32, 64, 128, 256, 512, 1024,  /* divider = 8 */
+};
+
+/*
+ * Check if the divider is available for internal ratio mode
+ */
+static bool fsl_asrc_divider_avail(int clk_rate, int rate, int *div)
+{
+	u32 rem, i;
+	u64 n;
+
+	if (div)
+		*div = 0;
+
+	if (clk_rate == 0 || rate == 0)
+		return false;
+
+	n = clk_rate;
+	rem = do_div(n, rate);
+
+	if (div)
+		*div = n;
+
+	if (rem != 0)
+		return false;
+
+	for (i = 0; i < DIVIDER_NUM; i++) {
+		if (n == asrc_clk_divider[i])
+			break;
+	}
+
+	if (i == DIVIDER_NUM)
+		return false;
+
+	return true;
+}
+
+/**
+ * fsl_asrc_sel_proc - Select the pre-processing and post-processing options
+ * @inrate: input sample rate
+ * @outrate: output sample rate
+ * @pre_proc: return value for pre-processing option
+ * @post_proc: return value for post-processing option
+ *
+ * Make sure to exclude following unsupported cases before
+ * calling this function:
+ * 1) inrate > 8.125 * outrate
+ * 2) inrate > 16.125 * outrate
+ *
+ */
+static void fsl_asrc_sel_proc(int inrate, int outrate,
+			     int *pre_proc, int *post_proc)
+{
+	bool post_proc_cond2;
+	bool post_proc_cond0;
+
+	/* select pre_proc between [0, 2] */
+	if (inrate * 8 > 33 * outrate)
+		*pre_proc = 2;
+	else if (inrate * 8 > 15 * outrate) {
+		if (inrate > 152000)
+			*pre_proc = 2;
+		else
+			*pre_proc = 1;
+	} else if (inrate < 76000)
+		*pre_proc = 0;
+	else if (inrate > 152000)
+		*pre_proc = 2;
+	else
+		*pre_proc = 1;
+
+	/* Condition for selection of post-processing */
+	post_proc_cond2 = (inrate * 15 > outrate * 16 && outrate < 56000) ||
+			  (inrate > 56000 && outrate < 56000);
+	post_proc_cond0 = inrate * 23 < outrate * 8;
+
+	if (post_proc_cond2)
+		*post_proc = 2;
+	else if (post_proc_cond0)
+		*post_proc = 0;
+	else
+		*post_proc = 1;
+}
+
+/**
+ * fsl_asrc_request_pair - Request ASRC pair
+ * @channels: number of channels
+ * @pair: pointer to pair
+ *
+ * It assigns pair by the order of A->C->B because allocation of pair B,
+ * within range [ANCA, ANCA+ANCB-1], depends on the channels of pair A
+ * while pair A and pair C are comparatively independent.
+ */
+static int fsl_asrc_request_pair(int channels, struct fsl_asrc_pair *pair)
+{
+	enum asrc_pair_index index = ASRC_INVALID_PAIR;
+	struct fsl_asrc *asrc = pair->asrc;
+	struct device *dev = &asrc->pdev->dev;
+	unsigned long lock_flags;
+	int i, ret = 0;
+
+	spin_lock_irqsave(&asrc->lock, lock_flags);
+
+	for (i = ASRC_PAIR_A; i < ASRC_PAIR_MAX_NUM; i++) {
+		if (asrc->pair[i] != NULL)
+			continue;
+
+		index = i;
+
+		if (i != ASRC_PAIR_B)
+			break;
+	}
+
+	if (index == ASRC_INVALID_PAIR) {
+		dev_err(dev, "all pairs are busy now\n");
+		ret = -EBUSY;
+	} else if (asrc->channel_avail < channels) {
+		dev_err(dev, "can't afford required channels: %d\n", channels);
+		ret = -EINVAL;
+	} else {
+		asrc->channel_avail -= channels;
+		asrc->pair[index] = pair;
+		pair->channels = channels;
+		pair->index = index;
+	}
+
+	spin_unlock_irqrestore(&asrc->lock, lock_flags);
+
+	return ret;
+}
+
+/**
+ * fsl_asrc_release_pair - Release ASRC pair
+ * @pair: pair to release
+ *
+ * It clears the resource from asrc and releases the occupied channels.
+ */
+static void fsl_asrc_release_pair(struct fsl_asrc_pair *pair)
+{
+	struct fsl_asrc *asrc = pair->asrc;
+	enum asrc_pair_index index = pair->index;
+	unsigned long lock_flags;
+
+	/* Make sure the pair is disabled */
+	regmap_update_bits(asrc->regmap, REG_ASRCTR,
+			   ASRCTR_ASRCEi_MASK(index), 0);
+
+	spin_lock_irqsave(&asrc->lock, lock_flags);
+
+	asrc->channel_avail += pair->channels;
+	asrc->pair[index] = NULL;
+	pair->error = 0;
+
+	spin_unlock_irqrestore(&asrc->lock, lock_flags);
+}
+
+/**
+ * fsl_asrc_set_watermarks- configure input and output thresholds
+ * @pair: pointer to pair
+ * @in: input threshold
+ * @out: output threshold
+ */
+static void fsl_asrc_set_watermarks(struct fsl_asrc_pair *pair, u32 in, u32 out)
+{
+	struct fsl_asrc *asrc = pair->asrc;
+	enum asrc_pair_index index = pair->index;
+
+	regmap_update_bits(asrc->regmap, REG_ASRMCR(index),
+			   ASRMCRi_EXTTHRSHi_MASK |
+			   ASRMCRi_INFIFO_THRESHOLD_MASK |
+			   ASRMCRi_OUTFIFO_THRESHOLD_MASK,
+			   ASRMCRi_EXTTHRSHi |
+			   ASRMCRi_INFIFO_THRESHOLD(in) |
+			   ASRMCRi_OUTFIFO_THRESHOLD(out));
+}
+
+/**
+ * fsl_asrc_cal_asrck_divisor - Calculate the total divisor between asrck clock rate and sample rate
+ * @pair: pointer to pair
+ * @div: divider
+ *
+ * It follows the formula clk_rate = samplerate * (2 ^ prescaler) * divider
+ */
+static u32 fsl_asrc_cal_asrck_divisor(struct fsl_asrc_pair *pair, u32 div)
+{
+	u32 ps;
+
+	/* Calculate the divisors: prescaler [2^0, 2^7], divder [1, 8] */
+	for (ps = 0; div > 8; ps++)
+		div >>= 1;
+
+	return ((div - 1) << ASRCDRi_AxCPi_WIDTH) | ps;
+}
+
+/**
+ * fsl_asrc_set_ideal_ratio - Calculate and set the ratio for Ideal Ratio mode only
+ * @pair: pointer to pair
+ * @inrate: input rate
+ * @outrate: output rate
+ *
+ * The ratio is a 32-bit fixed point value with 26 fractional bits.
+ */
+static int fsl_asrc_set_ideal_ratio(struct fsl_asrc_pair *pair,
+				    int inrate, int outrate)
+{
+	struct fsl_asrc *asrc = pair->asrc;
+	enum asrc_pair_index index = pair->index;
+	unsigned long ratio;
+	int i;
+
+	if (!outrate) {
+		pair_err("output rate should not be zero\n");
+		return -EINVAL;
+	}
+
+	/* Calculate the intergal part of the ratio */
+	ratio = (inrate / outrate) << IDEAL_RATIO_DECIMAL_DEPTH;
+
+	/* ... and then the 26 depth decimal part */
+	inrate %= outrate;
+
+	for (i = 1; i <= IDEAL_RATIO_DECIMAL_DEPTH; i++) {
+		inrate <<= 1;
+
+		if (inrate < outrate)
+			continue;
+
+		ratio |= 1 << (IDEAL_RATIO_DECIMAL_DEPTH - i);
+		inrate -= outrate;
+
+		if (!inrate)
+			break;
+	}
+
+	regmap_write(asrc->regmap, REG_ASRIDRL(index), ratio);
+	regmap_write(asrc->regmap, REG_ASRIDRH(index), ratio >> 24);
+
+	return 0;
+}
+
+/**
+ * fsl_asrc_config_pair - Configure the assigned ASRC pair
+ * @pair: pointer to pair
+ * @use_ideal_rate: boolean configuration
+ *
+ * It configures those ASRC registers according to a configuration instance
+ * of struct asrc_config which includes in/output sample rate, width, channel
+ * and clock settings.
+ *
+ * Note:
+ * The ideal ratio configuration can work with a flexible clock rate setting.
+ * Using IDEAL_RATIO_RATE gives a faster converting speed but overloads ASRC.
+ * For a regular audio playback, the clock rate should not be slower than an
+ * clock rate aligning with the output sample rate; For a use case requiring
+ * faster conversion, set use_ideal_rate to have the faster speed.
+ */
+static int fsl_asrc_config_pair(struct fsl_asrc_pair *pair, bool use_ideal_rate)
+{
+	struct fsl_asrc_pair_priv *pair_priv = pair->private;
+	struct asrc_config *config = pair_priv->config;
+	struct fsl_asrc *asrc = pair->asrc;
+	struct fsl_asrc_priv *asrc_priv = asrc->private;
+	enum asrc_pair_index index = pair->index;
+	enum asrc_word_width input_word_width;
+	enum asrc_word_width output_word_width;
+	u32 inrate, outrate, indiv, outdiv;
+	u32 clk_index[2], div[2];
+	u64 clk_rate;
+	int in, out, channels;
+	int pre_proc, post_proc;
+	struct clk *clk;
+	bool ideal, div_avail;
+
+	if (!config) {
+		pair_err("invalid pair config\n");
+		return -EINVAL;
+	}
+
+	/* Validate channels */
+	if (config->channel_num < 1 || config->channel_num > 10) {
+		pair_err("does not support %d channels\n", config->channel_num);
+		return -EINVAL;
+	}
+
+	switch (snd_pcm_format_width(config->input_format)) {
+	case 8:
+		input_word_width = ASRC_WIDTH_8_BIT;
+		break;
+	case 16:
+		input_word_width = ASRC_WIDTH_16_BIT;
+		break;
+	case 24:
+		input_word_width = ASRC_WIDTH_24_BIT;
+		break;
+	default:
+		pair_err("does not support this input format, %d\n",
+			 config->input_format);
+		return -EINVAL;
+	}
+
+	switch (snd_pcm_format_width(config->output_format)) {
+	case 16:
+		output_word_width = ASRC_WIDTH_16_BIT;
+		break;
+	case 24:
+		output_word_width = ASRC_WIDTH_24_BIT;
+		break;
+	default:
+		pair_err("does not support this output format, %d\n",
+			 config->output_format);
+		return -EINVAL;
+	}
+
+	inrate = config->input_sample_rate;
+	outrate = config->output_sample_rate;
+	ideal = config->inclk == INCLK_NONE;
+
+	/* Validate input and output sample rates */
+	for (in = 0; in < ARRAY_SIZE(supported_asrc_rate); in++)
+		if (inrate == supported_asrc_rate[in])
+			break;
+
+	if (in == ARRAY_SIZE(supported_asrc_rate)) {
+		pair_err("unsupported input sample rate: %dHz\n", inrate);
+		return -EINVAL;
+	}
+
+	for (out = 0; out < ARRAY_SIZE(supported_asrc_rate); out++)
+		if (outrate == supported_asrc_rate[out])
+			break;
+
+	if (out == ARRAY_SIZE(supported_asrc_rate)) {
+		pair_err("unsupported output sample rate: %dHz\n", outrate);
+		return -EINVAL;
+	}
+
+	if ((outrate >= 5512 && outrate <= 30000) &&
+	    (outrate > 24 * inrate || inrate > 8 * outrate)) {
+		pair_err("exceed supported ratio range [1/24, 8] for \
+				inrate/outrate: %d/%d\n", inrate, outrate);
+		return -EINVAL;
+	}
+
+	/* Validate input and output clock sources */
+	clk_index[IN] = asrc_priv->clk_map[IN][config->inclk];
+	clk_index[OUT] = asrc_priv->clk_map[OUT][config->outclk];
+
+	/* We only have output clock for ideal ratio mode */
+	clk = asrc_priv->asrck_clk[clk_index[ideal ? OUT : IN]];
+
+	clk_rate = clk_get_rate(clk);
+	div_avail = fsl_asrc_divider_avail(clk_rate, inrate, &div[IN]);
+
+	/*
+	 * The divider range is [1, 1024], defined by the hardware. For non-
+	 * ideal ratio configuration, clock rate has to be strictly aligned
+	 * with the sample rate. For ideal ratio configuration, clock rates
+	 * only result in different converting speeds. So remainder does not
+	 * matter, as long as we keep the divider within its valid range.
+	 */
+	if (div[IN] == 0 || (!ideal && !div_avail)) {
+		pair_err("failed to support input sample rate %dHz by asrck_%x\n",
+				inrate, clk_index[ideal ? OUT : IN]);
+		return -EINVAL;
+	}
+
+	div[IN] = min_t(u32, 1024, div[IN]);
+
+	clk = asrc_priv->asrck_clk[clk_index[OUT]];
+	clk_rate = clk_get_rate(clk);
+	if (ideal && use_ideal_rate)
+		div_avail = fsl_asrc_divider_avail(clk_rate, IDEAL_RATIO_RATE, &div[OUT]);
+	else
+		div_avail = fsl_asrc_divider_avail(clk_rate, outrate, &div[OUT]);
+
+	/* Output divider has the same limitation as the input one */
+	if (div[OUT] == 0 || (!ideal && !div_avail)) {
+		pair_err("failed to support output sample rate %dHz by asrck_%x\n",
+				outrate, clk_index[OUT]);
+		return -EINVAL;
+	}
+
+	div[OUT] = min_t(u32, 1024, div[OUT]);
+
+	/* Set the channel number */
+	channels = config->channel_num;
+
+	if (asrc_priv->soc->channel_bits < 4)
+		channels /= 2;
+
+	/* Update channels for current pair */
+	regmap_update_bits(asrc->regmap, REG_ASRCNCR,
+			   ASRCNCR_ANCi_MASK(index, asrc_priv->soc->channel_bits),
+			   ASRCNCR_ANCi(index, channels, asrc_priv->soc->channel_bits));
+
+	/* Default setting: Automatic selection for processing mode */
+	regmap_update_bits(asrc->regmap, REG_ASRCTR,
+			   ASRCTR_ATSi_MASK(index), ASRCTR_ATS(index));
+	regmap_update_bits(asrc->regmap, REG_ASRCTR,
+			   ASRCTR_USRi_MASK(index), 0);
+
+	/* Set the input and output clock sources */
+	regmap_update_bits(asrc->regmap, REG_ASRCSR,
+			   ASRCSR_AICSi_MASK(index) | ASRCSR_AOCSi_MASK(index),
+			   ASRCSR_AICS(index, clk_index[IN]) |
+			   ASRCSR_AOCS(index, clk_index[OUT]));
+
+	/* Calculate the input clock divisors */
+	indiv = fsl_asrc_cal_asrck_divisor(pair, div[IN]);
+	outdiv = fsl_asrc_cal_asrck_divisor(pair, div[OUT]);
+
+	/* Suppose indiv and outdiv includes prescaler, so add its MASK too */
+	regmap_update_bits(asrc->regmap, REG_ASRCDR(index),
+			   ASRCDRi_AOCPi_MASK(index) | ASRCDRi_AICPi_MASK(index) |
+			   ASRCDRi_AOCDi_MASK(index) | ASRCDRi_AICDi_MASK(index),
+			   ASRCDRi_AOCP(index, outdiv) | ASRCDRi_AICP(index, indiv));
+
+	/* Implement word_width configurations */
+	regmap_update_bits(asrc->regmap, REG_ASRMCR1(index),
+			   ASRMCR1i_OW16_MASK | ASRMCR1i_IWD_MASK,
+			   ASRMCR1i_OW16(output_word_width) |
+			   ASRMCR1i_IWD(input_word_width));
+
+	/* Enable BUFFER STALL */
+	regmap_update_bits(asrc->regmap, REG_ASRMCR(index),
+			   ASRMCRi_BUFSTALLi_MASK, ASRMCRi_BUFSTALLi);
+
+	/* Set default thresholds for input and output FIFO */
+	fsl_asrc_set_watermarks(pair, ASRC_INPUTFIFO_THRESHOLD,
+				ASRC_INPUTFIFO_THRESHOLD);
+
+	/* Configure the following only for Ideal Ratio mode */
+	if (!ideal)
+		return 0;
+
+	/* Clear ASTSx bit to use Ideal Ratio mode */
+	regmap_update_bits(asrc->regmap, REG_ASRCTR,
+			   ASRCTR_ATSi_MASK(index), 0);
+
+	/* Enable Ideal Ratio mode */
+	regmap_update_bits(asrc->regmap, REG_ASRCTR,
+			   ASRCTR_IDRi_MASK(index) | ASRCTR_USRi_MASK(index),
+			   ASRCTR_IDR(index) | ASRCTR_USR(index));
+
+	fsl_asrc_sel_proc(inrate, outrate, &pre_proc, &post_proc);
+
+	/* Apply configurations for pre- and post-processing */
+	regmap_update_bits(asrc->regmap, REG_ASRCFG,
+			   ASRCFG_PREMODi_MASK(index) |	ASRCFG_POSTMODi_MASK(index),
+			   ASRCFG_PREMOD(index, pre_proc) |
+			   ASRCFG_POSTMOD(index, post_proc));
+
+	return fsl_asrc_set_ideal_ratio(pair, inrate, outrate);
+}
+
+/**
+ * fsl_asrc_start_pair - Start the assigned ASRC pair
+ * @pair: pointer to pair
+ *
+ * It enables the assigned pair and makes it stopped at the stall level.
+ */
+static void fsl_asrc_start_pair(struct fsl_asrc_pair *pair)
+{
+	struct fsl_asrc *asrc = pair->asrc;
+	enum asrc_pair_index index = pair->index;
+	int reg, retry = INIT_RETRY_NUM, i;
+
+	/* Enable the current pair */
+	regmap_update_bits(asrc->regmap, REG_ASRCTR,
+			   ASRCTR_ASRCEi_MASK(index), ASRCTR_ASRCE(index));
+
+	/* Wait for status of initialization */
+	do {
+		udelay(5);
+		regmap_read(asrc->regmap, REG_ASRCFG, &reg);
+		reg &= ASRCFG_INIRQi_MASK(index);
+	} while (!reg && --retry);
+
+	/* NOTE: Doesn't treat initialization timeout as an error */
+	if (!retry)
+		pair_warn("initialization isn't finished\n");
+
+	/* Make the input fifo to ASRC STALL level */
+	regmap_read(asrc->regmap, REG_ASRCNCR, &reg);
+	for (i = 0; i < pair->channels * 4; i++)
+		regmap_write(asrc->regmap, REG_ASRDI(index), 0);
+
+	/* Enable overload interrupt */
+	regmap_write(asrc->regmap, REG_ASRIER, ASRIER_AOLIE);
+}
+
+/**
+ * fsl_asrc_stop_pair - Stop the assigned ASRC pair
+ * @pair: pointer to pair
+ */
+static void fsl_asrc_stop_pair(struct fsl_asrc_pair *pair)
+{
+	struct fsl_asrc *asrc = pair->asrc;
+	enum asrc_pair_index index = pair->index;
+
+	/* Stop the current pair */
+	regmap_update_bits(asrc->regmap, REG_ASRCTR,
+			   ASRCTR_ASRCEi_MASK(index), 0);
+}
+
+/**
+ * fsl_asrc_get_dma_channel- Get DMA channel according to the pair and direction.
+ * @pair: pointer to pair
+ * @dir: DMA direction
+ */
+static struct dma_chan *fsl_asrc_get_dma_channel(struct fsl_asrc_pair *pair,
+						 bool dir)
+{
+	struct fsl_asrc *asrc = pair->asrc;
+	enum asrc_pair_index index = pair->index;
+	char name[4];
+
+	sprintf(name, "%cx%c", dir == IN ? 'r' : 't', index + 'a');
+
+	return dma_request_slave_channel(&asrc->pdev->dev, name);
+}
+
+static int fsl_asrc_dai_startup(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct fsl_asrc *asrc = snd_soc_dai_get_drvdata(dai);
+	struct fsl_asrc_priv *asrc_priv = asrc->private;
+
+	/* Odd channel number is not valid for older ASRC (channel_bits==3) */
+	if (asrc_priv->soc->channel_bits == 3)
+		snd_pcm_hw_constraint_step(substream->runtime, 0,
+					   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+
+
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &fsl_asrc_rate_constraints);
+}
+
+/* Select proper clock source for internal ratio mode */
+static void fsl_asrc_select_clk(struct fsl_asrc_priv *asrc_priv,
+				struct fsl_asrc_pair *pair,
+				int in_rate,
+				int out_rate)
+{
+	struct fsl_asrc_pair_priv *pair_priv = pair->private;
+	struct asrc_config *config = pair_priv->config;
+	int rate[2], select_clk[2]; /* Array size 2 means IN and OUT */
+	int clk_rate, clk_index;
+	int i, j;
+
+	rate[IN] = in_rate;
+	rate[OUT] = out_rate;
+
+	/* Select proper clock source for internal ratio mode */
+	for (j = 0; j < 2; j++) {
+		for (i = 0; i < ASRC_CLK_MAP_LEN; i++) {
+			clk_index = asrc_priv->clk_map[j][i];
+			clk_rate = clk_get_rate(asrc_priv->asrck_clk[clk_index]);
+			/* Only match a perfect clock source with no remainder */
+			if (fsl_asrc_divider_avail(clk_rate, rate[j], NULL))
+				break;
+		}
+
+		select_clk[j] = i;
+	}
+
+	/* Switch to ideal ratio mode if there is no proper clock source */
+	if (select_clk[IN] == ASRC_CLK_MAP_LEN || select_clk[OUT] == ASRC_CLK_MAP_LEN) {
+		select_clk[IN] = INCLK_NONE;
+		select_clk[OUT] = OUTCLK_ASRCK1_CLK;
+	}
+
+	config->inclk = select_clk[IN];
+	config->outclk = select_clk[OUT];
+}
+
+static int fsl_asrc_dai_hw_params(struct snd_pcm_substream *substream,
+				  struct snd_pcm_hw_params *params,
+				  struct snd_soc_dai *dai)
+{
+	struct fsl_asrc *asrc = snd_soc_dai_get_drvdata(dai);
+	struct fsl_asrc_priv *asrc_priv = asrc->private;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+	struct fsl_asrc_pair_priv *pair_priv = pair->private;
+	unsigned int channels = params_channels(params);
+	unsigned int rate = params_rate(params);
+	struct asrc_config config;
+	int ret;
+
+	ret = fsl_asrc_request_pair(channels, pair);
+	if (ret) {
+		dev_err(dai->dev, "fail to request asrc pair\n");
+		return ret;
+	}
+
+	pair_priv->config = &config;
+
+	config.pair = pair->index;
+	config.channel_num = channels;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		config.input_format   = params_format(params);
+		config.output_format  = asrc->asrc_format;
+		config.input_sample_rate  = rate;
+		config.output_sample_rate = asrc->asrc_rate;
+	} else {
+		config.input_format   = asrc->asrc_format;
+		config.output_format  = params_format(params);
+		config.input_sample_rate  = asrc->asrc_rate;
+		config.output_sample_rate = rate;
+	}
+
+	fsl_asrc_select_clk(asrc_priv, pair,
+			    config.input_sample_rate,
+			    config.output_sample_rate);
+
+	ret = fsl_asrc_config_pair(pair, false);
+	if (ret) {
+		dev_err(dai->dev, "fail to config asrc pair\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int fsl_asrc_dai_hw_free(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+
+	if (pair)
+		fsl_asrc_release_pair(pair);
+
+	return 0;
+}
+
+static int fsl_asrc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
+				struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		fsl_asrc_start_pair(pair);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		fsl_asrc_stop_pair(pair);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops fsl_asrc_dai_ops = {
+	.startup      = fsl_asrc_dai_startup,
+	.hw_params    = fsl_asrc_dai_hw_params,
+	.hw_free      = fsl_asrc_dai_hw_free,
+	.trigger      = fsl_asrc_dai_trigger,
+};
+
+static int fsl_asrc_dai_probe(struct snd_soc_dai *dai)
+{
+	struct fsl_asrc *asrc = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &asrc->dma_params_tx,
+				  &asrc->dma_params_rx);
+
+	return 0;
+}
+
+#define FSL_ASRC_FORMATS	(SNDRV_PCM_FMTBIT_S24_LE | \
+				 SNDRV_PCM_FMTBIT_S16_LE | \
+				 SNDRV_PCM_FMTBIT_S24_3LE)
+
+static struct snd_soc_dai_driver fsl_asrc_dai = {
+	.probe = fsl_asrc_dai_probe,
+	.playback = {
+		.stream_name = "ASRC-Playback",
+		.channels_min = 1,
+		.channels_max = 10,
+		.rate_min = 5512,
+		.rate_max = 192000,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_ASRC_FORMATS |
+			   SNDRV_PCM_FMTBIT_S8,
+	},
+	.capture = {
+		.stream_name = "ASRC-Capture",
+		.channels_min = 1,
+		.channels_max = 10,
+		.rate_min = 5512,
+		.rate_max = 192000,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_ASRC_FORMATS,
+	},
+	.ops = &fsl_asrc_dai_ops,
+};
+
+static bool fsl_asrc_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_ASRCTR:
+	case REG_ASRIER:
+	case REG_ASRCNCR:
+	case REG_ASRCFG:
+	case REG_ASRCSR:
+	case REG_ASRCDR1:
+	case REG_ASRCDR2:
+	case REG_ASRSTR:
+	case REG_ASRPM1:
+	case REG_ASRPM2:
+	case REG_ASRPM3:
+	case REG_ASRPM4:
+	case REG_ASRPM5:
+	case REG_ASRTFR1:
+	case REG_ASRCCR:
+	case REG_ASRDOA:
+	case REG_ASRDOB:
+	case REG_ASRDOC:
+	case REG_ASRIDRHA:
+	case REG_ASRIDRLA:
+	case REG_ASRIDRHB:
+	case REG_ASRIDRLB:
+	case REG_ASRIDRHC:
+	case REG_ASRIDRLC:
+	case REG_ASR76K:
+	case REG_ASR56K:
+	case REG_ASRMCRA:
+	case REG_ASRFSTA:
+	case REG_ASRMCRB:
+	case REG_ASRFSTB:
+	case REG_ASRMCRC:
+	case REG_ASRFSTC:
+	case REG_ASRMCR1A:
+	case REG_ASRMCR1B:
+	case REG_ASRMCR1C:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_asrc_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_ASRSTR:
+	case REG_ASRDIA:
+	case REG_ASRDIB:
+	case REG_ASRDIC:
+	case REG_ASRDOA:
+	case REG_ASRDOB:
+	case REG_ASRDOC:
+	case REG_ASRFSTA:
+	case REG_ASRFSTB:
+	case REG_ASRFSTC:
+	case REG_ASRCFG:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_asrc_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_ASRCTR:
+	case REG_ASRIER:
+	case REG_ASRCNCR:
+	case REG_ASRCFG:
+	case REG_ASRCSR:
+	case REG_ASRCDR1:
+	case REG_ASRCDR2:
+	case REG_ASRSTR:
+	case REG_ASRPM1:
+	case REG_ASRPM2:
+	case REG_ASRPM3:
+	case REG_ASRPM4:
+	case REG_ASRPM5:
+	case REG_ASRTFR1:
+	case REG_ASRCCR:
+	case REG_ASRDIA:
+	case REG_ASRDIB:
+	case REG_ASRDIC:
+	case REG_ASRIDRHA:
+	case REG_ASRIDRLA:
+	case REG_ASRIDRHB:
+	case REG_ASRIDRLB:
+	case REG_ASRIDRHC:
+	case REG_ASRIDRLC:
+	case REG_ASR76K:
+	case REG_ASR56K:
+	case REG_ASRMCRA:
+	case REG_ASRMCRB:
+	case REG_ASRMCRC:
+	case REG_ASRMCR1A:
+	case REG_ASRMCR1B:
+	case REG_ASRMCR1C:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static struct reg_default fsl_asrc_reg[] = {
+	{ REG_ASRCTR, 0x0000 }, { REG_ASRIER, 0x0000 },
+	{ REG_ASRCNCR, 0x0000 }, { REG_ASRCFG, 0x0000 },
+	{ REG_ASRCSR, 0x0000 }, { REG_ASRCDR1, 0x0000 },
+	{ REG_ASRCDR2, 0x0000 }, { REG_ASRSTR, 0x0000 },
+	{ REG_ASRRA, 0x0000 }, { REG_ASRRB, 0x0000 },
+	{ REG_ASRRC, 0x0000 }, { REG_ASRPM1, 0x0000 },
+	{ REG_ASRPM2, 0x0000 }, { REG_ASRPM3, 0x0000 },
+	{ REG_ASRPM4, 0x0000 }, { REG_ASRPM5, 0x0000 },
+	{ REG_ASRTFR1, 0x0000 }, { REG_ASRCCR, 0x0000 },
+	{ REG_ASRDIA, 0x0000 }, { REG_ASRDOA, 0x0000 },
+	{ REG_ASRDIB, 0x0000 }, { REG_ASRDOB, 0x0000 },
+	{ REG_ASRDIC, 0x0000 }, { REG_ASRDOC, 0x0000 },
+	{ REG_ASRIDRHA, 0x0000 }, { REG_ASRIDRLA, 0x0000 },
+	{ REG_ASRIDRHB, 0x0000 }, { REG_ASRIDRLB, 0x0000 },
+	{ REG_ASRIDRHC, 0x0000 }, { REG_ASRIDRLC, 0x0000 },
+	{ REG_ASR76K, 0x0A47 }, { REG_ASR56K, 0x0DF3 },
+	{ REG_ASRMCRA, 0x0000 }, { REG_ASRFSTA, 0x0000 },
+	{ REG_ASRMCRB, 0x0000 }, { REG_ASRFSTB, 0x0000 },
+	{ REG_ASRMCRC, 0x0000 }, { REG_ASRFSTC, 0x0000 },
+	{ REG_ASRMCR1A, 0x0000 }, { REG_ASRMCR1B, 0x0000 },
+	{ REG_ASRMCR1C, 0x0000 },
+};
+
+static const struct regmap_config fsl_asrc_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+
+	.max_register = REG_ASRMCR1C,
+	.reg_defaults = fsl_asrc_reg,
+	.num_reg_defaults = ARRAY_SIZE(fsl_asrc_reg),
+	.readable_reg = fsl_asrc_readable_reg,
+	.volatile_reg = fsl_asrc_volatile_reg,
+	.writeable_reg = fsl_asrc_writeable_reg,
+	.cache_type = REGCACHE_FLAT,
+};
+
+/**
+ * fsl_asrc_init - Initialize ASRC registers with a default configuration
+ * @asrc: ASRC context
+ */
+static int fsl_asrc_init(struct fsl_asrc *asrc)
+{
+	unsigned long ipg_rate;
+
+	/* Halt ASRC internal FP when input FIFO needs data for pair A, B, C */
+	regmap_write(asrc->regmap, REG_ASRCTR, ASRCTR_ASRCEN);
+
+	/* Disable interrupt by default */
+	regmap_write(asrc->regmap, REG_ASRIER, 0x0);
+
+	/* Apply recommended settings for parameters from Reference Manual */
+	regmap_write(asrc->regmap, REG_ASRPM1, 0x7fffff);
+	regmap_write(asrc->regmap, REG_ASRPM2, 0x255555);
+	regmap_write(asrc->regmap, REG_ASRPM3, 0xff7280);
+	regmap_write(asrc->regmap, REG_ASRPM4, 0xff7280);
+	regmap_write(asrc->regmap, REG_ASRPM5, 0xff7280);
+
+	/* Base address for task queue FIFO. Set to 0x7C */
+	regmap_update_bits(asrc->regmap, REG_ASRTFR1,
+			   ASRTFR1_TF_BASE_MASK, ASRTFR1_TF_BASE(0xfc));
+
+	/*
+	 * Set the period of the 76KHz and 56KHz sampling clocks based on
+	 * the ASRC processing clock.
+	 * On iMX6, ipg_clk = 133MHz, REG_ASR76K = 0x06D6, REG_ASR56K = 0x0947
+	 */
+	ipg_rate = clk_get_rate(asrc->ipg_clk);
+	regmap_write(asrc->regmap, REG_ASR76K, ipg_rate / 76000);
+	return regmap_write(asrc->regmap, REG_ASR56K, ipg_rate / 56000);
+}
+
+/**
+ * fsl_asrc_isr- Interrupt handler for ASRC
+ * @irq: irq number
+ * @dev_id: ASRC context
+ */
+static irqreturn_t fsl_asrc_isr(int irq, void *dev_id)
+{
+	struct fsl_asrc *asrc = (struct fsl_asrc *)dev_id;
+	struct device *dev = &asrc->pdev->dev;
+	enum asrc_pair_index index;
+	u32 status;
+
+	regmap_read(asrc->regmap, REG_ASRSTR, &status);
+
+	/* Clean overload error */
+	regmap_write(asrc->regmap, REG_ASRSTR, ASRSTR_AOLE);
+
+	/*
+	 * We here use dev_dbg() for all exceptions because ASRC itself does
+	 * not care if FIFO overflowed or underrun while a warning in the
+	 * interrupt would result a ridged conversion.
+	 */
+	for (index = ASRC_PAIR_A; index < ASRC_PAIR_MAX_NUM; index++) {
+		if (!asrc->pair[index])
+			continue;
+
+		if (status & ASRSTR_ATQOL) {
+			asrc->pair[index]->error |= ASRC_TASK_Q_OVERLOAD;
+			dev_dbg(dev, "ASRC Task Queue FIFO overload\n");
+		}
+
+		if (status & ASRSTR_AOOL(index)) {
+			asrc->pair[index]->error |= ASRC_OUTPUT_TASK_OVERLOAD;
+			pair_dbg("Output Task Overload\n");
+		}
+
+		if (status & ASRSTR_AIOL(index)) {
+			asrc->pair[index]->error |= ASRC_INPUT_TASK_OVERLOAD;
+			pair_dbg("Input Task Overload\n");
+		}
+
+		if (status & ASRSTR_AODO(index)) {
+			asrc->pair[index]->error |= ASRC_OUTPUT_BUFFER_OVERFLOW;
+			pair_dbg("Output Data Buffer has overflowed\n");
+		}
+
+		if (status & ASRSTR_AIDU(index)) {
+			asrc->pair[index]->error |= ASRC_INPUT_BUFFER_UNDERRUN;
+			pair_dbg("Input Data Buffer has underflowed\n");
+		}
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int fsl_asrc_get_fifo_addr(u8 dir, enum asrc_pair_index index)
+{
+	return REG_ASRDx(dir, index);
+}
+
+static int fsl_asrc_runtime_resume(struct device *dev);
+static int fsl_asrc_runtime_suspend(struct device *dev);
+
+static int fsl_asrc_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct fsl_asrc_priv *asrc_priv;
+	struct fsl_asrc *asrc;
+	struct resource *res;
+	void __iomem *regs;
+	int irq, ret, i;
+	u32 asrc_fmt = 0;
+	u32 map_idx;
+	char tmp[16];
+	u32 width;
+
+	asrc = devm_kzalloc(&pdev->dev, sizeof(*asrc), GFP_KERNEL);
+	if (!asrc)
+		return -ENOMEM;
+
+	asrc_priv = devm_kzalloc(&pdev->dev, sizeof(*asrc_priv), GFP_KERNEL);
+	if (!asrc_priv)
+		return -ENOMEM;
+
+	asrc->pdev = pdev;
+	asrc->private = asrc_priv;
+
+	/* Get the addresses and IRQ */
+	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	asrc->paddr = res->start;
+
+	asrc->regmap = devm_regmap_init_mmio(&pdev->dev, regs, &fsl_asrc_regmap_config);
+	if (IS_ERR(asrc->regmap)) {
+		dev_err(&pdev->dev, "failed to init regmap\n");
+		return PTR_ERR(asrc->regmap);
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = devm_request_irq(&pdev->dev, irq, fsl_asrc_isr, 0,
+			       dev_name(&pdev->dev), asrc);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to claim irq %u: %d\n", irq, ret);
+		return ret;
+	}
+
+	asrc->mem_clk = devm_clk_get(&pdev->dev, "mem");
+	if (IS_ERR(asrc->mem_clk)) {
+		dev_err(&pdev->dev, "failed to get mem clock\n");
+		return PTR_ERR(asrc->mem_clk);
+	}
+
+	asrc->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
+	if (IS_ERR(asrc->ipg_clk)) {
+		dev_err(&pdev->dev, "failed to get ipg clock\n");
+		return PTR_ERR(asrc->ipg_clk);
+	}
+
+	asrc->spba_clk = devm_clk_get(&pdev->dev, "spba");
+	if (IS_ERR(asrc->spba_clk))
+		dev_warn(&pdev->dev, "failed to get spba clock\n");
+
+	for (i = 0; i < ASRC_CLK_MAX_NUM; i++) {
+		sprintf(tmp, "asrck_%x", i);
+		asrc_priv->asrck_clk[i] = devm_clk_get(&pdev->dev, tmp);
+		if (IS_ERR(asrc_priv->asrck_clk[i])) {
+			dev_err(&pdev->dev, "failed to get %s clock\n", tmp);
+			return PTR_ERR(asrc_priv->asrck_clk[i]);
+		}
+	}
+
+	asrc_priv->soc = of_device_get_match_data(&pdev->dev);
+	asrc->use_edma = asrc_priv->soc->use_edma;
+	asrc->get_dma_channel = fsl_asrc_get_dma_channel;
+	asrc->request_pair = fsl_asrc_request_pair;
+	asrc->release_pair = fsl_asrc_release_pair;
+	asrc->get_fifo_addr = fsl_asrc_get_fifo_addr;
+	asrc->pair_priv_size = sizeof(struct fsl_asrc_pair_priv);
+
+	if (of_device_is_compatible(np, "fsl,imx35-asrc")) {
+		asrc_priv->clk_map[IN] = input_clk_map_imx35;
+		asrc_priv->clk_map[OUT] = output_clk_map_imx35;
+	} else if (of_device_is_compatible(np, "fsl,imx53-asrc")) {
+		asrc_priv->clk_map[IN] = input_clk_map_imx53;
+		asrc_priv->clk_map[OUT] = output_clk_map_imx53;
+	} else if (of_device_is_compatible(np, "fsl,imx8qm-asrc") ||
+		   of_device_is_compatible(np, "fsl,imx8qxp-asrc")) {
+		ret = of_property_read_u32(np, "fsl,asrc-clk-map", &map_idx);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to get clk map index\n");
+			return ret;
+		}
+
+		if (map_idx > 1) {
+			dev_err(&pdev->dev, "unsupported clk map index\n");
+			return -EINVAL;
+		}
+		if (of_device_is_compatible(np, "fsl,imx8qm-asrc")) {
+			asrc_priv->clk_map[IN] = clk_map_imx8qm[map_idx];
+			asrc_priv->clk_map[OUT] = clk_map_imx8qm[map_idx];
+		} else {
+			asrc_priv->clk_map[IN] = clk_map_imx8qxp[map_idx];
+			asrc_priv->clk_map[OUT] = clk_map_imx8qxp[map_idx];
+		}
+	}
+
+	asrc->channel_avail = 10;
+
+	ret = of_property_read_u32(np, "fsl,asrc-rate",
+				   &asrc->asrc_rate);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to get output rate\n");
+		return ret;
+	}
+
+	ret = of_property_read_u32(np, "fsl,asrc-format", &asrc_fmt);
+	asrc->asrc_format = (__force snd_pcm_format_t)asrc_fmt;
+	if (ret) {
+		ret = of_property_read_u32(np, "fsl,asrc-width", &width);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to decide output format\n");
+			return ret;
+		}
+
+		switch (width) {
+		case 16:
+			asrc->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
+			break;
+		case 24:
+			asrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+			break;
+		default:
+			dev_warn(&pdev->dev,
+				 "unsupported width, use default S24_LE\n");
+			asrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+			break;
+		}
+	}
+
+	if (!(FSL_ASRC_FORMATS & pcm_format_to_bits(asrc->asrc_format))) {
+		dev_warn(&pdev->dev, "unsupported width, use default S24_LE\n");
+		asrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+	}
+
+	platform_set_drvdata(pdev, asrc);
+	spin_lock_init(&asrc->lock);
+	pm_runtime_enable(&pdev->dev);
+	if (!pm_runtime_enabled(&pdev->dev)) {
+		ret = fsl_asrc_runtime_resume(&pdev->dev);
+		if (ret)
+			goto err_pm_disable;
+	}
+
+	ret = pm_runtime_resume_and_get(&pdev->dev);
+	if (ret < 0)
+		goto err_pm_get_sync;
+
+	ret = fsl_asrc_init(asrc);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to init asrc %d\n", ret);
+		goto err_pm_get_sync;
+	}
+
+	ret = pm_runtime_put_sync(&pdev->dev);
+	if (ret < 0 && ret != -ENOSYS)
+		goto err_pm_get_sync;
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_asrc_component,
+					      &fsl_asrc_dai, 1);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register ASoC DAI\n");
+		goto err_pm_get_sync;
+	}
+
+	return 0;
+
+err_pm_get_sync:
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		fsl_asrc_runtime_suspend(&pdev->dev);
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	return ret;
+}
+
+static int fsl_asrc_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		fsl_asrc_runtime_suspend(&pdev->dev);
+
+	return 0;
+}
+
+static int fsl_asrc_runtime_resume(struct device *dev)
+{
+	struct fsl_asrc *asrc = dev_get_drvdata(dev);
+	struct fsl_asrc_priv *asrc_priv = asrc->private;
+	int reg, retry = INIT_RETRY_NUM;
+	int i, ret;
+	u32 asrctr;
+
+	ret = clk_prepare_enable(asrc->mem_clk);
+	if (ret)
+		return ret;
+	ret = clk_prepare_enable(asrc->ipg_clk);
+	if (ret)
+		goto disable_mem_clk;
+	if (!IS_ERR(asrc->spba_clk)) {
+		ret = clk_prepare_enable(asrc->spba_clk);
+		if (ret)
+			goto disable_ipg_clk;
+	}
+	for (i = 0; i < ASRC_CLK_MAX_NUM; i++) {
+		ret = clk_prepare_enable(asrc_priv->asrck_clk[i]);
+		if (ret)
+			goto disable_asrck_clk;
+	}
+
+	/* Stop all pairs provisionally */
+	regmap_read(asrc->regmap, REG_ASRCTR, &asrctr);
+	regmap_update_bits(asrc->regmap, REG_ASRCTR,
+			   ASRCTR_ASRCEi_ALL_MASK, 0);
+
+	/* Restore all registers */
+	regcache_cache_only(asrc->regmap, false);
+	regcache_mark_dirty(asrc->regmap);
+	regcache_sync(asrc->regmap);
+
+	regmap_update_bits(asrc->regmap, REG_ASRCFG,
+			   ASRCFG_NDPRi_ALL_MASK | ASRCFG_POSTMODi_ALL_MASK |
+			   ASRCFG_PREMODi_ALL_MASK, asrc_priv->regcache_cfg);
+
+	/* Restart enabled pairs */
+	regmap_update_bits(asrc->regmap, REG_ASRCTR,
+			   ASRCTR_ASRCEi_ALL_MASK, asrctr);
+
+	/* Wait for status of initialization for all enabled pairs */
+	do {
+		udelay(5);
+		regmap_read(asrc->regmap, REG_ASRCFG, &reg);
+		reg = (reg >> ASRCFG_INIRQi_SHIFT(0)) & 0x7;
+	} while ((reg != ((asrctr >> ASRCTR_ASRCEi_SHIFT(0)) & 0x7)) && --retry);
+
+	/*
+	 * NOTE: Doesn't treat initialization timeout as an error
+	 * Some of the pairs may success, then still can continue.
+	 */
+	if (!retry) {
+		for (i = ASRC_PAIR_A; i < ASRC_PAIR_MAX_NUM; i++) {
+			if ((asrctr & ASRCTR_ASRCEi_MASK(i)) && !(reg & (1 << i)))
+				dev_warn(dev, "Pair %c initialization isn't finished\n", 'A' + i);
+		}
+	}
+
+	return 0;
+
+disable_asrck_clk:
+	for (i--; i >= 0; i--)
+		clk_disable_unprepare(asrc_priv->asrck_clk[i]);
+	if (!IS_ERR(asrc->spba_clk))
+		clk_disable_unprepare(asrc->spba_clk);
+disable_ipg_clk:
+	clk_disable_unprepare(asrc->ipg_clk);
+disable_mem_clk:
+	clk_disable_unprepare(asrc->mem_clk);
+	return ret;
+}
+
+static int fsl_asrc_runtime_suspend(struct device *dev)
+{
+	struct fsl_asrc *asrc = dev_get_drvdata(dev);
+	struct fsl_asrc_priv *asrc_priv = asrc->private;
+	int i;
+
+	regmap_read(asrc->regmap, REG_ASRCFG,
+		    &asrc_priv->regcache_cfg);
+
+	regcache_cache_only(asrc->regmap, true);
+
+	for (i = 0; i < ASRC_CLK_MAX_NUM; i++)
+		clk_disable_unprepare(asrc_priv->asrck_clk[i]);
+	if (!IS_ERR(asrc->spba_clk))
+		clk_disable_unprepare(asrc->spba_clk);
+	clk_disable_unprepare(asrc->ipg_clk);
+	clk_disable_unprepare(asrc->mem_clk);
+
+	return 0;
+}
+
+static const struct dev_pm_ops fsl_asrc_pm = {
+	SET_RUNTIME_PM_OPS(fsl_asrc_runtime_suspend, fsl_asrc_runtime_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static const struct fsl_asrc_soc_data fsl_asrc_imx35_data = {
+	.use_edma = false,
+	.channel_bits = 3,
+};
+
+static const struct fsl_asrc_soc_data fsl_asrc_imx53_data = {
+	.use_edma = false,
+	.channel_bits = 4,
+};
+
+static const struct fsl_asrc_soc_data fsl_asrc_imx8qm_data = {
+	.use_edma = true,
+	.channel_bits = 4,
+};
+
+static const struct fsl_asrc_soc_data fsl_asrc_imx8qxp_data = {
+	.use_edma = true,
+	.channel_bits = 4,
+};
+
+static const struct of_device_id fsl_asrc_ids[] = {
+	{ .compatible = "fsl,imx35-asrc", .data = &fsl_asrc_imx35_data },
+	{ .compatible = "fsl,imx53-asrc", .data = &fsl_asrc_imx53_data },
+	{ .compatible = "fsl,imx8qm-asrc", .data = &fsl_asrc_imx8qm_data },
+	{ .compatible = "fsl,imx8qxp-asrc", .data = &fsl_asrc_imx8qxp_data },
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_asrc_ids);
+
+static struct platform_driver fsl_asrc_driver = {
+	.probe = fsl_asrc_probe,
+	.remove = fsl_asrc_remove,
+	.driver = {
+		.name = "fsl-asrc",
+		.of_match_table = fsl_asrc_ids,
+		.pm = &fsl_asrc_pm,
+	},
+};
+module_platform_driver(fsl_asrc_driver);
+
+MODULE_DESCRIPTION("Freescale ASRC ASoC driver");
+MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>");
+MODULE_ALIAS("platform:fsl-asrc");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/fsl_asrc.h b/sound/soc/fsl/fsl_asrc.h
new file mode 100644
index 000000000..86d2422ad
--- /dev/null
+++ b/sound/soc/fsl/fsl_asrc.h
@@ -0,0 +1,464 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * fsl_asrc.h - Freescale ASRC ALSA SoC header file
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * Author: Nicolin Chen <nicoleotsuka@gmail.com>
+ */
+
+#ifndef _FSL_ASRC_H
+#define _FSL_ASRC_H
+
+#include  "fsl_asrc_common.h"
+
+#define ASRC_DMA_BUFFER_NUM		2
+#define ASRC_INPUTFIFO_THRESHOLD	32
+#define ASRC_OUTPUTFIFO_THRESHOLD	32
+#define ASRC_FIFO_THRESHOLD_MIN		0
+#define ASRC_FIFO_THRESHOLD_MAX		63
+#define ASRC_DMA_BUFFER_SIZE		(1024 * 48 * 4)
+#define ASRC_MAX_BUFFER_SIZE		(1024 * 48)
+#define ASRC_OUTPUT_LAST_SAMPLE		8
+
+#define IDEAL_RATIO_RATE		1000000
+
+#define REG_ASRCTR			0x00
+#define REG_ASRIER			0x04
+#define REG_ASRCNCR			0x0C
+#define REG_ASRCFG			0x10
+#define REG_ASRCSR			0x14
+
+#define REG_ASRCDR1			0x18
+#define REG_ASRCDR2			0x1C
+#define REG_ASRCDR(i)			((i < 2) ? REG_ASRCDR1 : REG_ASRCDR2)
+
+#define REG_ASRSTR			0x20
+#define REG_ASRRA			0x24
+#define REG_ASRRB			0x28
+#define REG_ASRRC			0x2C
+#define REG_ASRPM1			0x40
+#define REG_ASRPM2			0x44
+#define REG_ASRPM3			0x48
+#define REG_ASRPM4			0x4C
+#define REG_ASRPM5			0x50
+#define REG_ASRTFR1			0x54
+#define REG_ASRCCR			0x5C
+
+#define REG_ASRDIA			0x60
+#define REG_ASRDOA			0x64
+#define REG_ASRDIB			0x68
+#define REG_ASRDOB			0x6C
+#define REG_ASRDIC			0x70
+#define REG_ASRDOC			0x74
+#define REG_ASRDI(i)			(REG_ASRDIA + (i << 3))
+#define REG_ASRDO(i)			(REG_ASRDOA + (i << 3))
+#define REG_ASRDx(x, i)			((x) == IN ? REG_ASRDI(i) : REG_ASRDO(i))
+
+#define REG_ASRIDRHA			0x80
+#define REG_ASRIDRLA			0x84
+#define REG_ASRIDRHB			0x88
+#define REG_ASRIDRLB			0x8C
+#define REG_ASRIDRHC			0x90
+#define REG_ASRIDRLC			0x94
+#define REG_ASRIDRH(i)			(REG_ASRIDRHA + (i << 3))
+#define REG_ASRIDRL(i)			(REG_ASRIDRLA + (i << 3))
+
+#define REG_ASR76K			0x98
+#define REG_ASR56K			0x9C
+
+#define REG_ASRMCRA			0xA0
+#define REG_ASRFSTA			0xA4
+#define REG_ASRMCRB			0xA8
+#define REG_ASRFSTB			0xAC
+#define REG_ASRMCRC			0xB0
+#define REG_ASRFSTC			0xB4
+#define REG_ASRMCR(i)			(REG_ASRMCRA + (i << 3))
+#define REG_ASRFST(i)			(REG_ASRFSTA + (i << 3))
+
+#define REG_ASRMCR1A			0xC0
+#define REG_ASRMCR1B			0xC4
+#define REG_ASRMCR1C			0xC8
+#define REG_ASRMCR1(i)			(REG_ASRMCR1A + (i << 2))
+
+
+/* REG0 0x00 REG_ASRCTR */
+#define ASRCTR_ATSi_SHIFT(i)		(20 + i)
+#define ASRCTR_ATSi_MASK(i)		(1 << ASRCTR_ATSi_SHIFT(i))
+#define ASRCTR_ATS(i)			(1 << ASRCTR_ATSi_SHIFT(i))
+#define ASRCTR_USRi_SHIFT(i)		(14 + (i << 1))
+#define ASRCTR_USRi_MASK(i)		(1 << ASRCTR_USRi_SHIFT(i))
+#define ASRCTR_USR(i)			(1 << ASRCTR_USRi_SHIFT(i))
+#define ASRCTR_IDRi_SHIFT(i)		(13 + (i << 1))
+#define ASRCTR_IDRi_MASK(i)		(1 << ASRCTR_IDRi_SHIFT(i))
+#define ASRCTR_IDR(i)			(1 << ASRCTR_IDRi_SHIFT(i))
+#define ASRCTR_SRST_SHIFT		4
+#define ASRCTR_SRST_MASK		(1 << ASRCTR_SRST_SHIFT)
+#define ASRCTR_SRST			(1 << ASRCTR_SRST_SHIFT)
+#define ASRCTR_ASRCEi_SHIFT(i)		(1 + i)
+#define ASRCTR_ASRCEi_MASK(i)		(1 << ASRCTR_ASRCEi_SHIFT(i))
+#define ASRCTR_ASRCE(i)			(1 << ASRCTR_ASRCEi_SHIFT(i))
+#define ASRCTR_ASRCEi_ALL_MASK		(0x7 << ASRCTR_ASRCEi_SHIFT(0))
+#define ASRCTR_ASRCEN_SHIFT		0
+#define ASRCTR_ASRCEN_MASK		(1 << ASRCTR_ASRCEN_SHIFT)
+#define ASRCTR_ASRCEN			(1 << ASRCTR_ASRCEN_SHIFT)
+
+/* REG1 0x04 REG_ASRIER */
+#define ASRIER_AFPWE_SHIFT		7
+#define ASRIER_AFPWE_MASK		(1 << ASRIER_AFPWE_SHIFT)
+#define ASRIER_AFPWE			(1 << ASRIER_AFPWE_SHIFT)
+#define ASRIER_AOLIE_SHIFT		6
+#define ASRIER_AOLIE_MASK		(1 << ASRIER_AOLIE_SHIFT)
+#define ASRIER_AOLIE			(1 << ASRIER_AOLIE_SHIFT)
+#define ASRIER_ADOEi_SHIFT(i)		(3 + i)
+#define ASRIER_ADOEi_MASK(i)		(1 << ASRIER_ADOEi_SHIFT(i))
+#define ASRIER_ADOE(i)			(1 << ASRIER_ADOEi_SHIFT(i))
+#define ASRIER_ADIEi_SHIFT(i)		(0 + i)
+#define ASRIER_ADIEi_MASK(i)		(1 << ASRIER_ADIEi_SHIFT(i))
+#define ASRIER_ADIE(i)			(1 << ASRIER_ADIEi_SHIFT(i))
+
+/* REG2 0x0C REG_ASRCNCR */
+#define ASRCNCR_ANCi_SHIFT(i, b)	(b * i)
+#define ASRCNCR_ANCi_MASK(i, b)		(((1 << b) - 1) << ASRCNCR_ANCi_SHIFT(i, b))
+#define ASRCNCR_ANCi(i, v, b)		((v << ASRCNCR_ANCi_SHIFT(i, b)) & ASRCNCR_ANCi_MASK(i, b))
+
+/* REG3 0x10 REG_ASRCFG */
+#define ASRCFG_INIRQi_SHIFT(i)		(21 + i)
+#define ASRCFG_INIRQi_MASK(i)		(1 << ASRCFG_INIRQi_SHIFT(i))
+#define ASRCFG_INIRQi			(1 << ASRCFG_INIRQi_SHIFT(i))
+#define ASRCFG_NDPRi_SHIFT(i)		(18 + i)
+#define ASRCFG_NDPRi_MASK(i)		(1 << ASRCFG_NDPRi_SHIFT(i))
+#define ASRCFG_NDPRi_ALL_SHIFT		18
+#define ASRCFG_NDPRi_ALL_MASK		(7 << ASRCFG_NDPRi_ALL_SHIFT)
+#define ASRCFG_NDPRi			(1 << ASRCFG_NDPRi_SHIFT(i))
+#define ASRCFG_POSTMODi_SHIFT(i)	(8 + (i << 2))
+#define ASRCFG_POSTMODi_WIDTH		2
+#define ASRCFG_POSTMODi_MASK(i)		(((1 << ASRCFG_POSTMODi_WIDTH) - 1) << ASRCFG_POSTMODi_SHIFT(i))
+#define ASRCFG_POSTMODi_ALL_MASK	(ASRCFG_POSTMODi_MASK(0) | ASRCFG_POSTMODi_MASK(1) | ASRCFG_POSTMODi_MASK(2))
+#define ASRCFG_POSTMOD(i, v)		((v) << ASRCFG_POSTMODi_SHIFT(i))
+#define ASRCFG_POSTMODi_UP(i)		(0 << ASRCFG_POSTMODi_SHIFT(i))
+#define ASRCFG_POSTMODi_DCON(i)		(1 << ASRCFG_POSTMODi_SHIFT(i))
+#define ASRCFG_POSTMODi_DOWN(i)		(2 << ASRCFG_POSTMODi_SHIFT(i))
+#define ASRCFG_PREMODi_SHIFT(i)		(6 + (i << 2))
+#define ASRCFG_PREMODi_WIDTH		2
+#define ASRCFG_PREMODi_MASK(i)		(((1 << ASRCFG_PREMODi_WIDTH) - 1) << ASRCFG_PREMODi_SHIFT(i))
+#define ASRCFG_PREMODi_ALL_MASK		(ASRCFG_PREMODi_MASK(0) | ASRCFG_PREMODi_MASK(1) | ASRCFG_PREMODi_MASK(2))
+#define ASRCFG_PREMOD(i, v)		((v) << ASRCFG_PREMODi_SHIFT(i))
+#define ASRCFG_PREMODi_UP(i)		(0 << ASRCFG_PREMODi_SHIFT(i))
+#define ASRCFG_PREMODi_DCON(i)		(1 << ASRCFG_PREMODi_SHIFT(i))
+#define ASRCFG_PREMODi_DOWN(i)		(2 << ASRCFG_PREMODi_SHIFT(i))
+#define ASRCFG_PREMODi_BYPASS(i)	(3 << ASRCFG_PREMODi_SHIFT(i))
+
+/* REG4 0x14 REG_ASRCSR */
+#define ASRCSR_AxCSi_WIDTH		4
+#define ASRCSR_AxCSi_MASK		((1 << ASRCSR_AxCSi_WIDTH) - 1)
+#define ASRCSR_AOCSi_SHIFT(i)		(12 + (i << 2))
+#define ASRCSR_AOCSi_MASK(i)		(((1 << ASRCSR_AxCSi_WIDTH) - 1) << ASRCSR_AOCSi_SHIFT(i))
+#define ASRCSR_AOCS(i, v)		((v) << ASRCSR_AOCSi_SHIFT(i))
+#define ASRCSR_AICSi_SHIFT(i)		(i << 2)
+#define ASRCSR_AICSi_MASK(i)		(((1 << ASRCSR_AxCSi_WIDTH) - 1) << ASRCSR_AICSi_SHIFT(i))
+#define ASRCSR_AICS(i, v)		((v) << ASRCSR_AICSi_SHIFT(i))
+
+/* REG5&6 0x18 & 0x1C REG_ASRCDR1 & ASRCDR2 */
+#define ASRCDRi_AxCPi_WIDTH		3
+#define ASRCDRi_AICPi_SHIFT(i)		(0 + (i % 2) * 6)
+#define ASRCDRi_AICPi_MASK(i)		(((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AICPi_SHIFT(i))
+#define ASRCDRi_AICP(i, v)		((v) << ASRCDRi_AICPi_SHIFT(i))
+#define ASRCDRi_AICDi_SHIFT(i)		(3 + (i % 2) * 6)
+#define ASRCDRi_AICDi_MASK(i)		(((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AICDi_SHIFT(i))
+#define ASRCDRi_AICD(i, v)		((v) << ASRCDRi_AICDi_SHIFT(i))
+#define ASRCDRi_AOCPi_SHIFT(i)		((i < 2) ? 12 + i * 6 : 6)
+#define ASRCDRi_AOCPi_MASK(i)		(((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AOCPi_SHIFT(i))
+#define ASRCDRi_AOCP(i, v)		((v) << ASRCDRi_AOCPi_SHIFT(i))
+#define ASRCDRi_AOCDi_SHIFT(i)		((i < 2) ? 15 + i * 6 : 9)
+#define ASRCDRi_AOCDi_MASK(i)		(((1 << ASRCDRi_AxCPi_WIDTH) - 1) << ASRCDRi_AOCDi_SHIFT(i))
+#define ASRCDRi_AOCD(i, v)		((v) << ASRCDRi_AOCDi_SHIFT(i))
+
+/* REG7 0x20 REG_ASRSTR */
+#define ASRSTR_DSLCNT_SHIFT		21
+#define ASRSTR_DSLCNT_MASK		(1 << ASRSTR_DSLCNT_SHIFT)
+#define ASRSTR_DSLCNT			(1 << ASRSTR_DSLCNT_SHIFT)
+#define ASRSTR_ATQOL_SHIFT		20
+#define ASRSTR_ATQOL_MASK		(1 << ASRSTR_ATQOL_SHIFT)
+#define ASRSTR_ATQOL			(1 << ASRSTR_ATQOL_SHIFT)
+#define ASRSTR_AOOLi_SHIFT(i)		(17 + i)
+#define ASRSTR_AOOLi_MASK(i)		(1 << ASRSTR_AOOLi_SHIFT(i))
+#define ASRSTR_AOOL(i)			(1 << ASRSTR_AOOLi_SHIFT(i))
+#define ASRSTR_AIOLi_SHIFT(i)		(14 + i)
+#define ASRSTR_AIOLi_MASK(i)		(1 << ASRSTR_AIOLi_SHIFT(i))
+#define ASRSTR_AIOL(i)			(1 << ASRSTR_AIOLi_SHIFT(i))
+#define ASRSTR_AODOi_SHIFT(i)		(11 + i)
+#define ASRSTR_AODOi_MASK(i)		(1 << ASRSTR_AODOi_SHIFT(i))
+#define ASRSTR_AODO(i)			(1 << ASRSTR_AODOi_SHIFT(i))
+#define ASRSTR_AIDUi_SHIFT(i)		(8 + i)
+#define ASRSTR_AIDUi_MASK(i)		(1 << ASRSTR_AIDUi_SHIFT(i))
+#define ASRSTR_AIDU(i)			(1 << ASRSTR_AIDUi_SHIFT(i))
+#define ASRSTR_FPWT_SHIFT		7
+#define ASRSTR_FPWT_MASK		(1 << ASRSTR_FPWT_SHIFT)
+#define ASRSTR_FPWT			(1 << ASRSTR_FPWT_SHIFT)
+#define ASRSTR_AOLE_SHIFT		6
+#define ASRSTR_AOLE_MASK		(1 << ASRSTR_AOLE_SHIFT)
+#define ASRSTR_AOLE			(1 << ASRSTR_AOLE_SHIFT)
+#define ASRSTR_AODEi_SHIFT(i)		(3 + i)
+#define ASRSTR_AODFi_MASK(i)		(1 << ASRSTR_AODEi_SHIFT(i))
+#define ASRSTR_AODF(i)			(1 << ASRSTR_AODEi_SHIFT(i))
+#define ASRSTR_AIDEi_SHIFT(i)		(0 + i)
+#define ASRSTR_AIDEi_MASK(i)		(1 << ASRSTR_AIDEi_SHIFT(i))
+#define ASRSTR_AIDE(i)			(1 << ASRSTR_AIDEi_SHIFT(i))
+
+/* REG10 0x54 REG_ASRTFR1 */
+#define ASRTFR1_TF_BASE_WIDTH		7
+#define ASRTFR1_TF_BASE_SHIFT		6
+#define ASRTFR1_TF_BASE_MASK		(((1 << ASRTFR1_TF_BASE_WIDTH) - 1) << ASRTFR1_TF_BASE_SHIFT)
+#define ASRTFR1_TF_BASE(i)		((i) << ASRTFR1_TF_BASE_SHIFT)
+
+/*
+ * REG22 0xA0 REG_ASRMCRA
+ * REG24 0xA8 REG_ASRMCRB
+ * REG26 0xB0 REG_ASRMCRC
+ */
+#define ASRMCRi_ZEROBUFi_SHIFT		23
+#define ASRMCRi_ZEROBUFi_MASK		(1 << ASRMCRi_ZEROBUFi_SHIFT)
+#define ASRMCRi_ZEROBUFi		(1 << ASRMCRi_ZEROBUFi_SHIFT)
+#define ASRMCRi_EXTTHRSHi_SHIFT		22
+#define ASRMCRi_EXTTHRSHi_MASK		(1 << ASRMCRi_EXTTHRSHi_SHIFT)
+#define ASRMCRi_EXTTHRSHi		(1 << ASRMCRi_EXTTHRSHi_SHIFT)
+#define ASRMCRi_BUFSTALLi_SHIFT		21
+#define ASRMCRi_BUFSTALLi_MASK		(1 << ASRMCRi_BUFSTALLi_SHIFT)
+#define ASRMCRi_BUFSTALLi		(1 << ASRMCRi_BUFSTALLi_SHIFT)
+#define ASRMCRi_BYPASSPOLYi_SHIFT	20
+#define ASRMCRi_BYPASSPOLYi_MASK	(1 << ASRMCRi_BYPASSPOLYi_SHIFT)
+#define ASRMCRi_BYPASSPOLYi		(1 << ASRMCRi_BYPASSPOLYi_SHIFT)
+#define ASRMCRi_OUTFIFO_THRESHOLD_WIDTH	6
+#define ASRMCRi_OUTFIFO_THRESHOLD_SHIFT	12
+#define ASRMCRi_OUTFIFO_THRESHOLD_MASK	(((1 << ASRMCRi_OUTFIFO_THRESHOLD_WIDTH) - 1) << ASRMCRi_OUTFIFO_THRESHOLD_SHIFT)
+#define ASRMCRi_OUTFIFO_THRESHOLD(v)	(((v) << ASRMCRi_OUTFIFO_THRESHOLD_SHIFT) & ASRMCRi_OUTFIFO_THRESHOLD_MASK)
+#define ASRMCRi_RSYNIFi_SHIFT		11
+#define ASRMCRi_RSYNIFi_MASK		(1 << ASRMCRi_RSYNIFi_SHIFT)
+#define ASRMCRi_RSYNIFi			(1 << ASRMCRi_RSYNIFi_SHIFT)
+#define ASRMCRi_RSYNOFi_SHIFT		10
+#define ASRMCRi_RSYNOFi_MASK		(1 << ASRMCRi_RSYNOFi_SHIFT)
+#define ASRMCRi_RSYNOFi			(1 << ASRMCRi_RSYNOFi_SHIFT)
+#define ASRMCRi_INFIFO_THRESHOLD_WIDTH	6
+#define ASRMCRi_INFIFO_THRESHOLD_SHIFT	0
+#define ASRMCRi_INFIFO_THRESHOLD_MASK	(((1 << ASRMCRi_INFIFO_THRESHOLD_WIDTH) - 1) << ASRMCRi_INFIFO_THRESHOLD_SHIFT)
+#define ASRMCRi_INFIFO_THRESHOLD(v)	(((v) << ASRMCRi_INFIFO_THRESHOLD_SHIFT) & ASRMCRi_INFIFO_THRESHOLD_MASK)
+
+/*
+ * REG23 0xA4 REG_ASRFSTA
+ * REG25 0xAC REG_ASRFSTB
+ * REG27 0xB4 REG_ASRFSTC
+ */
+#define ASRFSTi_OAFi_SHIFT		23
+#define ASRFSTi_OAFi_MASK		(1 << ASRFSTi_OAFi_SHIFT)
+#define ASRFSTi_OAFi			(1 << ASRFSTi_OAFi_SHIFT)
+#define ASRFSTi_OUTPUT_FIFO_WIDTH	7
+#define ASRFSTi_OUTPUT_FIFO_SHIFT	12
+#define ASRFSTi_OUTPUT_FIFO_MASK	(((1 << ASRFSTi_OUTPUT_FIFO_WIDTH) - 1) << ASRFSTi_OUTPUT_FIFO_SHIFT)
+#define ASRFSTi_IAEi_SHIFT		11
+#define ASRFSTi_IAEi_MASK		(1 << ASRFSTi_IAEi_SHIFT)
+#define ASRFSTi_IAEi			(1 << ASRFSTi_IAEi_SHIFT)
+#define ASRFSTi_INPUT_FIFO_WIDTH	7
+#define ASRFSTi_INPUT_FIFO_SHIFT	0
+#define ASRFSTi_INPUT_FIFO_MASK		((1 << ASRFSTi_INPUT_FIFO_WIDTH) - 1)
+
+/* REG28 0xC0 & 0xC4 & 0xC8 REG_ASRMCR1i */
+#define ASRMCR1i_IWD_WIDTH		3
+#define ASRMCR1i_IWD_SHIFT		9
+#define ASRMCR1i_IWD_MASK		(((1 << ASRMCR1i_IWD_WIDTH) - 1) << ASRMCR1i_IWD_SHIFT)
+#define ASRMCR1i_IWD(v)			((v) << ASRMCR1i_IWD_SHIFT)
+#define ASRMCR1i_IMSB_SHIFT		8
+#define ASRMCR1i_IMSB_MASK		(1 << ASRMCR1i_IMSB_SHIFT)
+#define ASRMCR1i_IMSB_MSB		(1 << ASRMCR1i_IMSB_SHIFT)
+#define ASRMCR1i_IMSB_LSB		(0 << ASRMCR1i_IMSB_SHIFT)
+#define ASRMCR1i_OMSB_SHIFT		2
+#define ASRMCR1i_OMSB_MASK		(1 << ASRMCR1i_OMSB_SHIFT)
+#define ASRMCR1i_OMSB_MSB		(1 << ASRMCR1i_OMSB_SHIFT)
+#define ASRMCR1i_OMSB_LSB		(0 << ASRMCR1i_OMSB_SHIFT)
+#define ASRMCR1i_OSGN_SHIFT		1
+#define ASRMCR1i_OSGN_MASK		(1 << ASRMCR1i_OSGN_SHIFT)
+#define ASRMCR1i_OSGN			(1 << ASRMCR1i_OSGN_SHIFT)
+#define ASRMCR1i_OW16_SHIFT		0
+#define ASRMCR1i_OW16_MASK		(1 << ASRMCR1i_OW16_SHIFT)
+#define ASRMCR1i_OW16(v)		((v) << ASRMCR1i_OW16_SHIFT)
+
+#define ASRC_PAIR_MAX_NUM	(ASRC_PAIR_C + 1)
+
+enum asrc_inclk {
+	INCLK_NONE = 0x03,
+	INCLK_ESAI_RX = 0x00,
+	INCLK_SSI1_RX = 0x01,
+	INCLK_SSI2_RX = 0x02,
+	INCLK_SSI3_RX = 0x07,
+	INCLK_SPDIF_RX = 0x04,
+	INCLK_MLB_CLK = 0x05,
+	INCLK_PAD = 0x06,
+	INCLK_ESAI_TX = 0x08,
+	INCLK_SSI1_TX = 0x09,
+	INCLK_SSI2_TX = 0x0a,
+	INCLK_SSI3_TX = 0x0b,
+	INCLK_SPDIF_TX = 0x0c,
+	INCLK_ASRCK1_CLK = 0x0f,
+
+	/* clocks for imx8 */
+	INCLK_AUD_PLL_DIV_CLK0 = 0x10,
+	INCLK_AUD_PLL_DIV_CLK1 = 0x11,
+	INCLK_AUD_CLK0         = 0x12,
+	INCLK_AUD_CLK1         = 0x13,
+	INCLK_ESAI0_RX_CLK     = 0x14,
+	INCLK_ESAI0_TX_CLK     = 0x15,
+	INCLK_SPDIF0_RX        = 0x16,
+	INCLK_SPDIF1_RX        = 0x17,
+	INCLK_SAI0_RX_BCLK     = 0x18,
+	INCLK_SAI0_TX_BCLK     = 0x19,
+	INCLK_SAI1_RX_BCLK     = 0x1a,
+	INCLK_SAI1_TX_BCLK     = 0x1b,
+	INCLK_SAI2_RX_BCLK     = 0x1c,
+	INCLK_SAI3_RX_BCLK     = 0x1d,
+	INCLK_ASRC0_MUX_CLK    = 0x1e,
+
+	INCLK_ESAI1_RX_CLK     = 0x20,
+	INCLK_ESAI1_TX_CLK     = 0x21,
+	INCLK_SAI6_TX_BCLK     = 0x22,
+	INCLK_HDMI_RX_SAI0_RX_BCLK     = 0x24,
+	INCLK_HDMI_TX_SAI0_TX_BCLK     = 0x25,
+};
+
+enum asrc_outclk {
+	OUTCLK_NONE = 0x03,
+	OUTCLK_ESAI_TX = 0x00,
+	OUTCLK_SSI1_TX = 0x01,
+	OUTCLK_SSI2_TX = 0x02,
+	OUTCLK_SSI3_TX = 0x07,
+	OUTCLK_SPDIF_TX = 0x04,
+	OUTCLK_MLB_CLK = 0x05,
+	OUTCLK_PAD = 0x06,
+	OUTCLK_ESAI_RX = 0x08,
+	OUTCLK_SSI1_RX = 0x09,
+	OUTCLK_SSI2_RX = 0x0a,
+	OUTCLK_SSI3_RX = 0x0b,
+	OUTCLK_SPDIF_RX = 0x0c,
+	OUTCLK_ASRCK1_CLK = 0x0f,
+
+	/* clocks for imx8 */
+	OUTCLK_AUD_PLL_DIV_CLK0 = 0x10,
+	OUTCLK_AUD_PLL_DIV_CLK1 = 0x11,
+	OUTCLK_AUD_CLK0         = 0x12,
+	OUTCLK_AUD_CLK1         = 0x13,
+	OUTCLK_ESAI0_RX_CLK     = 0x14,
+	OUTCLK_ESAI0_TX_CLK     = 0x15,
+	OUTCLK_SPDIF0_RX        = 0x16,
+	OUTCLK_SPDIF1_RX        = 0x17,
+	OUTCLK_SAI0_RX_BCLK     = 0x18,
+	OUTCLK_SAI0_TX_BCLK     = 0x19,
+	OUTCLK_SAI1_RX_BCLK     = 0x1a,
+	OUTCLK_SAI1_TX_BCLK     = 0x1b,
+	OUTCLK_SAI2_RX_BCLK     = 0x1c,
+	OUTCLK_SAI3_RX_BCLK     = 0x1d,
+	OUTCLK_ASRCO_MUX_CLK    = 0x1e,
+
+	OUTCLK_ESAI1_RX_CLK     = 0x20,
+	OUTCLK_ESAI1_TX_CLK     = 0x21,
+	OUTCLK_SAI6_TX_BCLK     = 0x22,
+	OUTCLK_HDMI_RX_SAI0_RX_BCLK     = 0x24,
+	OUTCLK_HDMI_TX_SAI0_TX_BCLK     = 0x25,
+};
+
+#define ASRC_CLK_MAX_NUM	16
+#define ASRC_CLK_MAP_LEN	0x30
+
+enum asrc_word_width {
+	ASRC_WIDTH_24_BIT = 0,
+	ASRC_WIDTH_16_BIT = 1,
+	ASRC_WIDTH_8_BIT = 2,
+};
+
+struct asrc_config {
+	enum asrc_pair_index pair;
+	unsigned int channel_num;
+	unsigned int buffer_num;
+	unsigned int dma_buffer_size;
+	unsigned int input_sample_rate;
+	unsigned int output_sample_rate;
+	snd_pcm_format_t input_format;
+	snd_pcm_format_t output_format;
+	enum asrc_inclk inclk;
+	enum asrc_outclk outclk;
+};
+
+struct asrc_req {
+	unsigned int chn_num;
+	enum asrc_pair_index index;
+};
+
+struct asrc_querybuf {
+	unsigned int buffer_index;
+	unsigned int input_length;
+	unsigned int output_length;
+	unsigned long input_offset;
+	unsigned long output_offset;
+};
+
+struct asrc_convert_buffer {
+	void *input_buffer_vaddr;
+	void *output_buffer_vaddr;
+	unsigned int input_buffer_length;
+	unsigned int output_buffer_length;
+};
+
+struct asrc_status_flags {
+	enum asrc_pair_index index;
+	unsigned int overload_error;
+};
+
+enum asrc_error_status {
+	ASRC_TASK_Q_OVERLOAD		= 0x01,
+	ASRC_OUTPUT_TASK_OVERLOAD	= 0x02,
+	ASRC_INPUT_TASK_OVERLOAD	= 0x04,
+	ASRC_OUTPUT_BUFFER_OVERFLOW	= 0x08,
+	ASRC_INPUT_BUFFER_UNDERRUN	= 0x10,
+};
+
+struct dma_block {
+	dma_addr_t dma_paddr;
+	void *dma_vaddr;
+	unsigned int length;
+};
+
+/**
+ * fsl_asrc_soc_data: soc specific data
+ *
+ * @use_edma: using edma as dma device or not
+ * @channel_bits: width of ASRCNCR register for each pair
+ */
+struct fsl_asrc_soc_data {
+	bool use_edma;
+	unsigned int channel_bits;
+};
+
+/**
+ * fsl_asrc_pair_priv: ASRC Pair private data
+ *
+ * @config: configuration profile
+ */
+struct fsl_asrc_pair_priv {
+	struct asrc_config *config;
+};
+
+/**
+ * fsl_asrc_priv: ASRC private data
+ *
+ * @asrck_clk: clock sources to driver ASRC internal logic
+ * @soc: soc specific data
+ * @clk_map: clock map for input/output clock
+ * @regcache_cfg: store register value of REG_ASRCFG
+ */
+struct fsl_asrc_priv {
+	struct clk *asrck_clk[ASRC_CLK_MAX_NUM];
+	const struct fsl_asrc_soc_data *soc;
+	unsigned char *clk_map[2];
+
+	u32 regcache_cfg;
+};
+
+#endif /* _FSL_ASRC_H */
diff --git a/sound/soc/fsl/fsl_asrc_common.h b/sound/soc/fsl/fsl_asrc_common.h
new file mode 100644
index 000000000..7e1c13ca3
--- /dev/null
+++ b/sound/soc/fsl/fsl_asrc_common.h
@@ -0,0 +1,108 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2019 NXP
+ *
+ */
+
+#ifndef _FSL_ASRC_COMMON_H
+#define _FSL_ASRC_COMMON_H
+
+/* directions */
+#define IN	0
+#define OUT	1
+
+enum asrc_pair_index {
+	ASRC_INVALID_PAIR = -1,
+	ASRC_PAIR_A = 0,
+	ASRC_PAIR_B = 1,
+	ASRC_PAIR_C = 2,
+	ASRC_PAIR_D = 3,
+};
+
+#define PAIR_CTX_NUM  0x4
+
+/**
+ * fsl_asrc_pair: ASRC Pair common data
+ *
+ * @asrc: pointer to its parent module
+ * @error: error record
+ * @index: pair index (ASRC_PAIR_A, ASRC_PAIR_B, ASRC_PAIR_C)
+ * @channels: occupied channel number
+ * @desc: input and output dma descriptors
+ * @dma_chan: inputer and output DMA channels
+ * @dma_data: private dma data
+ * @pos: hardware pointer position
+ * @req_dma_chan: flag to release dev_to_dev chan
+ * @private: pair private area
+ */
+struct fsl_asrc_pair {
+	struct fsl_asrc *asrc;
+	unsigned int error;
+
+	enum asrc_pair_index index;
+	unsigned int channels;
+
+	struct dma_async_tx_descriptor *desc[2];
+	struct dma_chan *dma_chan[2];
+	struct imx_dma_data dma_data;
+	unsigned int pos;
+	bool req_dma_chan;
+
+	void *private;
+};
+
+/**
+ * fsl_asrc: ASRC common data
+ *
+ * @dma_params_rx: DMA parameters for receive channel
+ * @dma_params_tx: DMA parameters for transmit channel
+ * @pdev: platform device pointer
+ * @regmap: regmap handler
+ * @paddr: physical address to the base address of registers
+ * @mem_clk: clock source to access register
+ * @ipg_clk: clock source to drive peripheral
+ * @spba_clk: SPBA clock (optional, depending on SoC design)
+ * @lock: spin lock for resource protection
+ * @pair: pair pointers
+ * @channel_avail: non-occupied channel numbers
+ * @asrc_rate: default sample rate for ASoC Back-Ends
+ * @asrc_format: default sample format for ASoC Back-Ends
+ * @use_edma: edma is used
+ * @get_dma_channel: function pointer
+ * @request_pair: function pointer
+ * @release_pair: function pointer
+ * @get_fifo_addr: function pointer
+ * @pair_priv_size: size of pair private struct.
+ * @private: private data structure
+ */
+struct fsl_asrc {
+	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	struct snd_dmaengine_dai_dma_data dma_params_tx;
+	struct platform_device *pdev;
+	struct regmap *regmap;
+	unsigned long paddr;
+	struct clk *mem_clk;
+	struct clk *ipg_clk;
+	struct clk *spba_clk;
+	spinlock_t lock;      /* spin lock for resource protection */
+
+	struct fsl_asrc_pair *pair[PAIR_CTX_NUM];
+	unsigned int channel_avail;
+
+	int asrc_rate;
+	snd_pcm_format_t asrc_format;
+	bool use_edma;
+
+	struct dma_chan *(*get_dma_channel)(struct fsl_asrc_pair *pair, bool dir);
+	int (*request_pair)(int channels, struct fsl_asrc_pair *pair);
+	void (*release_pair)(struct fsl_asrc_pair *pair);
+	int (*get_fifo_addr)(u8 dir, enum asrc_pair_index index);
+	size_t pair_priv_size;
+
+	void *private;
+};
+
+#define DRV_NAME "fsl-asrc-dai"
+extern struct snd_soc_component_driver fsl_asrc_component;
+
+#endif /* _FSL_ASRC_COMMON_H */
diff --git a/sound/soc/fsl/fsl_asrc_dma.c b/sound/soc/fsl/fsl_asrc_dma.c
new file mode 100644
index 000000000..05a7d1588
--- /dev/null
+++ b/sound/soc/fsl/fsl_asrc_dma.c
@@ -0,0 +1,464 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale ASRC ALSA SoC Platform (DMA) driver
+//
+// Copyright (C) 2014 Freescale Semiconductor, Inc.
+//
+// Author: Nicolin Chen <nicoleotsuka@gmail.com>
+
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+#include <linux/dma/imx-dma.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+
+#include "fsl_asrc_common.h"
+
+#define FSL_ASRC_DMABUF_SIZE	(256 * 1024)
+
+static struct snd_pcm_hardware snd_imx_hardware = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_MMAP |
+		SNDRV_PCM_INFO_MMAP_VALID,
+	.buffer_bytes_max = FSL_ASRC_DMABUF_SIZE,
+	.period_bytes_min = 128,
+	.period_bytes_max = 65535, /* Limited by SDMA engine */
+	.periods_min = 2,
+	.periods_max = 255,
+	.fifo_size = 0,
+};
+
+static bool filter(struct dma_chan *chan, void *param)
+{
+	if (!imx_dma_is_general_purpose(chan))
+		return false;
+
+	chan->private = param;
+
+	return true;
+}
+
+static void fsl_asrc_dma_complete(void *arg)
+{
+	struct snd_pcm_substream *substream = arg;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+
+	pair->pos += snd_pcm_lib_period_bytes(substream);
+	if (pair->pos >= snd_pcm_lib_buffer_bytes(substream))
+		pair->pos = 0;
+
+	snd_pcm_period_elapsed(substream);
+}
+
+static int fsl_asrc_dma_prepare_and_submit(struct snd_pcm_substream *substream,
+					   struct snd_soc_component *component)
+{
+	u8 dir = substream->stream == SNDRV_PCM_STREAM_PLAYBACK ? OUT : IN;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+	struct device *dev = component->dev;
+	unsigned long flags = DMA_CTRL_ACK;
+
+	/* Prepare and submit Front-End DMA channel */
+	if (!substream->runtime->no_period_wakeup)
+		flags |= DMA_PREP_INTERRUPT;
+
+	pair->pos = 0;
+	pair->desc[!dir] = dmaengine_prep_dma_cyclic(
+			pair->dma_chan[!dir], runtime->dma_addr,
+			snd_pcm_lib_buffer_bytes(substream),
+			snd_pcm_lib_period_bytes(substream),
+			dir == OUT ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM, flags);
+	if (!pair->desc[!dir]) {
+		dev_err(dev, "failed to prepare slave DMA for Front-End\n");
+		return -ENOMEM;
+	}
+
+	pair->desc[!dir]->callback = fsl_asrc_dma_complete;
+	pair->desc[!dir]->callback_param = substream;
+
+	dmaengine_submit(pair->desc[!dir]);
+
+	/* Prepare and submit Back-End DMA channel */
+	pair->desc[dir] = dmaengine_prep_dma_cyclic(
+			pair->dma_chan[dir], 0xffff, 64, 64, DMA_DEV_TO_DEV, 0);
+	if (!pair->desc[dir]) {
+		dev_err(dev, "failed to prepare slave DMA for Back-End\n");
+		return -ENOMEM;
+	}
+
+	dmaengine_submit(pair->desc[dir]);
+
+	return 0;
+}
+
+static int fsl_asrc_dma_trigger(struct snd_soc_component *component,
+				struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+	int ret;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		ret = fsl_asrc_dma_prepare_and_submit(substream, component);
+		if (ret)
+			return ret;
+		dma_async_issue_pending(pair->dma_chan[IN]);
+		dma_async_issue_pending(pair->dma_chan[OUT]);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		dmaengine_terminate_async(pair->dma_chan[OUT]);
+		dmaengine_terminate_async(pair->dma_chan[IN]);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
+				  struct snd_pcm_substream *substream,
+				  struct snd_pcm_hw_params *params)
+{
+	enum dma_slave_buswidth buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;
+	enum sdma_peripheral_type be_peripheral_type = IMX_DMATYPE_SSI;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	struct snd_dmaengine_dai_dma_data *dma_params_fe = NULL;
+	struct snd_dmaengine_dai_dma_data *dma_params_be = NULL;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+	struct dma_chan *tmp_chan = NULL, *be_chan = NULL;
+	struct snd_soc_component *component_be = NULL;
+	struct fsl_asrc *asrc = pair->asrc;
+	struct dma_slave_config config_fe = {}, config_be = {};
+	struct sdma_peripheral_config audio_config;
+	enum asrc_pair_index index = pair->index;
+	struct device *dev = component->dev;
+	struct device_node *of_dma_node;
+	int stream = substream->stream;
+	struct imx_dma_data *tmp_data;
+	struct snd_soc_dpcm *dpcm;
+	struct device *dev_be;
+	u8 dir = tx ? OUT : IN;
+	dma_cap_mask_t mask;
+	int ret, width;
+
+	/* Fetch the Back-End dma_data from DPCM */
+	for_each_dpcm_be(rtd, stream, dpcm) {
+		struct snd_soc_pcm_runtime *be = dpcm->be;
+		struct snd_pcm_substream *substream_be;
+		struct snd_soc_dai *dai = asoc_rtd_to_cpu(be, 0);
+
+		if (dpcm->fe != rtd)
+			continue;
+
+		substream_be = snd_soc_dpcm_get_substream(be, stream);
+		dma_params_be = snd_soc_dai_get_dma_data(dai, substream_be);
+		dev_be = dai->dev;
+		break;
+	}
+
+	if (!dma_params_be) {
+		dev_err(dev, "failed to get the substream of Back-End\n");
+		return -EINVAL;
+	}
+
+	/* Override dma_data of the Front-End and config its dmaengine */
+	dma_params_fe = snd_soc_dai_get_dma_data(asoc_rtd_to_cpu(rtd, 0), substream);
+	dma_params_fe->addr = asrc->paddr + asrc->get_fifo_addr(!dir, index);
+	dma_params_fe->maxburst = dma_params_be->maxburst;
+
+	pair->dma_chan[!dir] = asrc->get_dma_channel(pair, !dir);
+	if (!pair->dma_chan[!dir]) {
+		dev_err(dev, "failed to request DMA channel\n");
+		return -EINVAL;
+	}
+
+	ret = snd_dmaengine_pcm_prepare_slave_config(substream, params, &config_fe);
+	if (ret) {
+		dev_err(dev, "failed to prepare DMA config for Front-End\n");
+		return ret;
+	}
+
+	ret = dmaengine_slave_config(pair->dma_chan[!dir], &config_fe);
+	if (ret) {
+		dev_err(dev, "failed to config DMA channel for Front-End\n");
+		return ret;
+	}
+
+	/* Request and config DMA channel for Back-End */
+	dma_cap_zero(mask);
+	dma_cap_set(DMA_SLAVE, mask);
+	dma_cap_set(DMA_CYCLIC, mask);
+
+	/*
+	 * The Back-End device might have already requested a DMA channel,
+	 * so try to reuse it first, and then request a new one upon NULL.
+	 */
+	component_be = snd_soc_lookup_component_nolocked(dev_be, SND_DMAENGINE_PCM_DRV_NAME);
+	if (component_be) {
+		be_chan = soc_component_to_pcm(component_be)->chan[substream->stream];
+		tmp_chan = be_chan;
+	}
+	if (!tmp_chan) {
+		tmp_chan = dma_request_chan(dev_be, tx ? "tx" : "rx");
+		if (IS_ERR(tmp_chan)) {
+			dev_err(dev, "failed to request DMA channel for Back-End\n");
+			return -EINVAL;
+		}
+	}
+
+	/*
+	 * An EDMA DEV_TO_DEV channel is fixed and bound with DMA event of each
+	 * peripheral, unlike SDMA channel that is allocated dynamically. So no
+	 * need to configure dma_request and dma_request2, but get dma_chan of
+	 * Back-End device directly via dma_request_chan.
+	 */
+	if (!asrc->use_edma) {
+		/* Get DMA request of Back-End */
+		tmp_data = tmp_chan->private;
+		pair->dma_data.dma_request = tmp_data->dma_request;
+		be_peripheral_type = tmp_data->peripheral_type;
+		if (!be_chan)
+			dma_release_channel(tmp_chan);
+
+		/* Get DMA request of Front-End */
+		tmp_chan = asrc->get_dma_channel(pair, dir);
+		tmp_data = tmp_chan->private;
+		pair->dma_data.dma_request2 = tmp_data->dma_request;
+		pair->dma_data.peripheral_type = tmp_data->peripheral_type;
+		pair->dma_data.priority = tmp_data->priority;
+		dma_release_channel(tmp_chan);
+
+		of_dma_node = pair->dma_chan[!dir]->device->dev->of_node;
+		pair->dma_chan[dir] =
+			__dma_request_channel(&mask, filter, &pair->dma_data,
+					      of_dma_node);
+		pair->req_dma_chan = true;
+	} else {
+		pair->dma_chan[dir] = tmp_chan;
+		/* Do not flag to release if we are reusing the Back-End one */
+		pair->req_dma_chan = !be_chan;
+	}
+
+	if (!pair->dma_chan[dir]) {
+		dev_err(dev, "failed to request DMA channel for Back-End\n");
+		return -EINVAL;
+	}
+
+	width = snd_pcm_format_physical_width(asrc->asrc_format);
+	if (width < 8 || width > 64)
+		return -EINVAL;
+	else if (width == 8)
+		buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE;
+	else if (width == 16)
+		buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;
+	else if (width == 24)
+		buswidth = DMA_SLAVE_BUSWIDTH_3_BYTES;
+	else if (width <= 32)
+		buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES;
+	else
+		buswidth = DMA_SLAVE_BUSWIDTH_8_BYTES;
+
+	config_be.direction = DMA_DEV_TO_DEV;
+	config_be.src_addr_width = buswidth;
+	config_be.src_maxburst = dma_params_be->maxburst;
+	config_be.dst_addr_width = buswidth;
+	config_be.dst_maxburst = dma_params_be->maxburst;
+
+	memset(&audio_config, 0, sizeof(audio_config));
+	config_be.peripheral_config = &audio_config;
+	config_be.peripheral_size  = sizeof(audio_config);
+
+	if (tx && (be_peripheral_type == IMX_DMATYPE_SSI_DUAL ||
+		   be_peripheral_type == IMX_DMATYPE_SPDIF))
+		audio_config.n_fifos_dst = 2;
+	if (!tx && (be_peripheral_type == IMX_DMATYPE_SSI_DUAL ||
+		    be_peripheral_type == IMX_DMATYPE_SPDIF))
+		audio_config.n_fifos_src = 2;
+
+	if (tx) {
+		config_be.src_addr = asrc->paddr + asrc->get_fifo_addr(OUT, index);
+		config_be.dst_addr = dma_params_be->addr;
+	} else {
+		config_be.dst_addr = asrc->paddr + asrc->get_fifo_addr(IN, index);
+		config_be.src_addr = dma_params_be->addr;
+	}
+
+	ret = dmaengine_slave_config(pair->dma_chan[dir], &config_be);
+	if (ret) {
+		dev_err(dev, "failed to config DMA channel for Back-End\n");
+		if (pair->req_dma_chan)
+			dma_release_channel(pair->dma_chan[dir]);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int fsl_asrc_dma_hw_free(struct snd_soc_component *component,
+				struct snd_pcm_substream *substream)
+{
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+	u8 dir = tx ? OUT : IN;
+
+	if (pair->dma_chan[!dir])
+		dma_release_channel(pair->dma_chan[!dir]);
+
+	/* release dev_to_dev chan if we aren't reusing the Back-End one */
+	if (pair->dma_chan[dir] && pair->req_dma_chan)
+		dma_release_channel(pair->dma_chan[dir]);
+
+	pair->dma_chan[!dir] = NULL;
+	pair->dma_chan[dir] = NULL;
+
+	return 0;
+}
+
+static int fsl_asrc_dma_startup(struct snd_soc_component *component,
+				struct snd_pcm_substream *substream)
+{
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_dmaengine_dai_dma_data *dma_data;
+	struct device *dev = component->dev;
+	struct fsl_asrc *asrc = dev_get_drvdata(dev);
+	struct fsl_asrc_pair *pair;
+	struct dma_chan *tmp_chan = NULL;
+	u8 dir = tx ? OUT : IN;
+	bool release_pair = true;
+	int ret = 0;
+
+	ret = snd_pcm_hw_constraint_integer(substream->runtime,
+					    SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0) {
+		dev_err(dev, "failed to set pcm hw params periods\n");
+		return ret;
+	}
+
+	pair = kzalloc(sizeof(*pair) + asrc->pair_priv_size, GFP_KERNEL);
+	if (!pair)
+		return -ENOMEM;
+
+	pair->asrc = asrc;
+	pair->private = (void *)pair + sizeof(struct fsl_asrc_pair);
+
+	runtime->private_data = pair;
+
+	/* Request a dummy pair, which will be released later.
+	 * Request pair function needs channel num as input, for this
+	 * dummy pair, we just request "1" channel temporarily.
+	 */
+	ret = asrc->request_pair(1, pair);
+	if (ret < 0) {
+		dev_err(dev, "failed to request asrc pair\n");
+		goto req_pair_err;
+	}
+
+	/* Request a dummy dma channel, which will be released later. */
+	tmp_chan = asrc->get_dma_channel(pair, dir);
+	if (!tmp_chan) {
+		dev_err(dev, "failed to get dma channel\n");
+		ret = -EINVAL;
+		goto dma_chan_err;
+	}
+
+	dma_data = snd_soc_dai_get_dma_data(asoc_rtd_to_cpu(rtd, 0), substream);
+
+	/* Refine the snd_imx_hardware according to caps of DMA. */
+	ret = snd_dmaengine_pcm_refine_runtime_hwparams(substream,
+							dma_data,
+							&snd_imx_hardware,
+							tmp_chan);
+	if (ret < 0) {
+		dev_err(dev, "failed to refine runtime hwparams\n");
+		goto out;
+	}
+
+	release_pair = false;
+	snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware);
+
+out:
+	dma_release_channel(tmp_chan);
+
+dma_chan_err:
+	asrc->release_pair(pair);
+
+req_pair_err:
+	if (release_pair)
+		kfree(pair);
+
+	return ret;
+}
+
+static int fsl_asrc_dma_shutdown(struct snd_soc_component *component,
+				 struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+	struct fsl_asrc *asrc;
+
+	if (!pair)
+		return 0;
+
+	asrc = pair->asrc;
+
+	if (asrc->pair[pair->index] == pair)
+		asrc->pair[pair->index] = NULL;
+
+	kfree(pair);
+
+	return 0;
+}
+
+static snd_pcm_uframes_t
+fsl_asrc_dma_pcm_pointer(struct snd_soc_component *component,
+			 struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *pair = runtime->private_data;
+
+	return bytes_to_frames(substream->runtime, pair->pos);
+}
+
+static int fsl_asrc_dma_pcm_new(struct snd_soc_component *component,
+				struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_card *card = rtd->card->snd_card;
+	struct snd_pcm *pcm = rtd->pcm;
+	int ret;
+
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret) {
+		dev_err(card->dev, "failed to set DMA mask\n");
+		return ret;
+	}
+
+	return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+					    card->dev, FSL_ASRC_DMABUF_SIZE);
+}
+
+struct snd_soc_component_driver fsl_asrc_component = {
+	.name		= DRV_NAME,
+	.hw_params	= fsl_asrc_dma_hw_params,
+	.hw_free	= fsl_asrc_dma_hw_free,
+	.trigger	= fsl_asrc_dma_trigger,
+	.open		= fsl_asrc_dma_startup,
+	.close		= fsl_asrc_dma_shutdown,
+	.pointer	= fsl_asrc_dma_pcm_pointer,
+	.pcm_construct	= fsl_asrc_dma_pcm_new,
+	.legacy_dai_naming = 1,
+};
+EXPORT_SYMBOL_GPL(fsl_asrc_component);
diff --git a/sound/soc/fsl/fsl_aud2htx.c b/sound/soc/fsl/fsl_aud2htx.c
new file mode 100644
index 000000000..1e421d9a0
--- /dev/null
+++ b/sound/soc/fsl/fsl_aud2htx.c
@@ -0,0 +1,314 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2020 NXP
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/dmaengine.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <linux/pm_qos.h>
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+#include <linux/dma-mapping.h>
+
+#include "fsl_aud2htx.h"
+#include "imx-pcm.h"
+
+static int fsl_aud2htx_trigger(struct snd_pcm_substream *substream, int cmd,
+			       struct snd_soc_dai *dai)
+{
+	struct fsl_aud2htx *aud2htx = snd_soc_dai_get_drvdata(dai);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL,
+				   AUD2HTX_CTRL_EN, AUD2HTX_CTRL_EN);
+		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,
+				   AUD2HTX_CTRE_DE, AUD2HTX_CTRE_DE);
+		break;
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,
+				   AUD2HTX_CTRE_DE, 0);
+		regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL,
+				   AUD2HTX_CTRL_EN, 0);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static const struct snd_soc_dai_ops fsl_aud2htx_dai_ops = {
+	.trigger	= fsl_aud2htx_trigger,
+};
+
+static int fsl_aud2htx_dai_probe(struct snd_soc_dai *cpu_dai)
+{
+	struct fsl_aud2htx *aud2htx = dev_get_drvdata(cpu_dai->dev);
+
+	/* DMA request when number of entries < WTMK_LOW */
+	regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,
+			   AUD2HTX_CTRE_DT_MASK, 0);
+
+	/* Disable interrupts*/
+	regmap_update_bits(aud2htx->regmap, AUD2HTX_IRQ_MASK,
+			   AUD2HTX_WM_HIGH_IRQ_MASK |
+			   AUD2HTX_WM_LOW_IRQ_MASK |
+			   AUD2HTX_OVF_MASK,
+			   AUD2HTX_WM_HIGH_IRQ_MASK |
+			   AUD2HTX_WM_LOW_IRQ_MASK |
+			   AUD2HTX_OVF_MASK);
+
+	/* Configure watermark */
+	regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,
+			   AUD2HTX_CTRE_WL_MASK,
+			   AUD2HTX_WTMK_LOW << AUD2HTX_CTRE_WL_SHIFT);
+	regmap_update_bits(aud2htx->regmap, AUD2HTX_CTRL_EXT,
+			   AUD2HTX_CTRE_WH_MASK,
+			   AUD2HTX_WTMK_HIGH << AUD2HTX_CTRE_WH_SHIFT);
+
+	snd_soc_dai_init_dma_data(cpu_dai, &aud2htx->dma_params_tx,
+				  &aud2htx->dma_params_rx);
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver fsl_aud2htx_dai = {
+	.probe = fsl_aud2htx_dai_probe,
+	.playback = {
+		.stream_name = "CPU-Playback",
+		.channels_min = 1,
+		.channels_max = 8,
+		.rates = SNDRV_PCM_RATE_32000 |
+			 SNDRV_PCM_RATE_44100 |
+			 SNDRV_PCM_RATE_48000 |
+			 SNDRV_PCM_RATE_88200 |
+			 SNDRV_PCM_RATE_96000 |
+			 SNDRV_PCM_RATE_176400 |
+			 SNDRV_PCM_RATE_192000,
+		.formats = FSL_AUD2HTX_FORMATS,
+	},
+	.ops = &fsl_aud2htx_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_aud2htx_component = {
+	.name			= "fsl-aud2htx",
+	.legacy_dai_naming	= 1,
+};
+
+static const struct reg_default fsl_aud2htx_reg_defaults[] = {
+	{AUD2HTX_CTRL,		0x00000000},
+	{AUD2HTX_CTRL_EXT,	0x00000000},
+	{AUD2HTX_WR,		0x00000000},
+	{AUD2HTX_STATUS,	0x00000000},
+	{AUD2HTX_IRQ_NOMASK,	0x00000000},
+	{AUD2HTX_IRQ_MASKED,	0x00000000},
+	{AUD2HTX_IRQ_MASK,	0x00000000},
+};
+
+static bool fsl_aud2htx_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case AUD2HTX_CTRL:
+	case AUD2HTX_CTRL_EXT:
+	case AUD2HTX_STATUS:
+	case AUD2HTX_IRQ_NOMASK:
+	case AUD2HTX_IRQ_MASKED:
+	case AUD2HTX_IRQ_MASK:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_aud2htx_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case AUD2HTX_CTRL:
+	case AUD2HTX_CTRL_EXT:
+	case AUD2HTX_WR:
+	case AUD2HTX_IRQ_NOMASK:
+	case AUD2HTX_IRQ_MASKED:
+	case AUD2HTX_IRQ_MASK:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_aud2htx_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case AUD2HTX_STATUS:
+	case AUD2HTX_IRQ_NOMASK:
+	case AUD2HTX_IRQ_MASKED:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config fsl_aud2htx_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+
+	.max_register = AUD2HTX_IRQ_MASK,
+	.reg_defaults = fsl_aud2htx_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(fsl_aud2htx_reg_defaults),
+	.readable_reg = fsl_aud2htx_readable_reg,
+	.volatile_reg = fsl_aud2htx_volatile_reg,
+	.writeable_reg = fsl_aud2htx_writeable_reg,
+	.cache_type = REGCACHE_RBTREE,
+};
+
+static const struct of_device_id fsl_aud2htx_dt_ids[] = {
+	{ .compatible = "fsl,imx8mp-aud2htx",},
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_aud2htx_dt_ids);
+
+static irqreturn_t fsl_aud2htx_isr(int irq, void *dev_id)
+{
+	return IRQ_HANDLED;
+}
+
+static int fsl_aud2htx_probe(struct platform_device *pdev)
+{
+	struct fsl_aud2htx *aud2htx;
+	struct resource *res;
+	void __iomem *regs;
+	int ret, irq;
+
+	aud2htx = devm_kzalloc(&pdev->dev, sizeof(*aud2htx), GFP_KERNEL);
+	if (!aud2htx)
+		return -ENOMEM;
+
+	aud2htx->pdev = pdev;
+
+	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	aud2htx->regmap = devm_regmap_init_mmio(&pdev->dev, regs,
+						&fsl_aud2htx_regmap_config);
+	if (IS_ERR(aud2htx->regmap)) {
+		dev_err(&pdev->dev, "failed to init regmap");
+		return PTR_ERR(aud2htx->regmap);
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = devm_request_irq(&pdev->dev, irq, fsl_aud2htx_isr, 0,
+			       dev_name(&pdev->dev), aud2htx);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to claim irq %u: %d\n", irq, ret);
+		return ret;
+	}
+
+	aud2htx->bus_clk = devm_clk_get(&pdev->dev, "bus");
+	if (IS_ERR(aud2htx->bus_clk)) {
+		dev_err(&pdev->dev, "failed to get mem clock\n");
+		return PTR_ERR(aud2htx->bus_clk);
+	}
+
+	aud2htx->dma_params_tx.chan_name = "tx";
+	aud2htx->dma_params_tx.maxburst = AUD2HTX_MAXBURST;
+	aud2htx->dma_params_tx.addr = res->start + AUD2HTX_WR;
+
+	platform_set_drvdata(pdev, aud2htx);
+	pm_runtime_enable(&pdev->dev);
+
+	regcache_cache_only(aud2htx->regmap, true);
+
+	/*
+	 * Register platform component before registering cpu dai for there
+	 * is not defer probe for platform component in snd_soc_add_pcm_runtime().
+	 */
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to pcm register\n");
+		pm_runtime_disable(&pdev->dev);
+		return ret;
+	}
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+					      &fsl_aud2htx_component,
+					      &fsl_aud2htx_dai, 1);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register ASoC DAI\n");
+		pm_runtime_disable(&pdev->dev);
+		return ret;
+	}
+
+	return ret;
+}
+
+static int fsl_aud2htx_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static int __maybe_unused fsl_aud2htx_runtime_suspend(struct device *dev)
+{
+	struct fsl_aud2htx *aud2htx = dev_get_drvdata(dev);
+
+	regcache_cache_only(aud2htx->regmap, true);
+	clk_disable_unprepare(aud2htx->bus_clk);
+
+	return 0;
+}
+
+static int __maybe_unused fsl_aud2htx_runtime_resume(struct device *dev)
+{
+	struct fsl_aud2htx *aud2htx = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(aud2htx->bus_clk);
+	if (ret)
+		return ret;
+
+	regcache_cache_only(aud2htx->regmap, false);
+	regcache_mark_dirty(aud2htx->regmap);
+	regcache_sync(aud2htx->regmap);
+
+	return 0;
+}
+
+static const struct dev_pm_ops fsl_aud2htx_pm_ops = {
+	SET_RUNTIME_PM_OPS(fsl_aud2htx_runtime_suspend,
+			   fsl_aud2htx_runtime_resume,
+			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static struct platform_driver fsl_aud2htx_driver = {
+	.probe = fsl_aud2htx_probe,
+	.remove = fsl_aud2htx_remove,
+	.driver = {
+		.name = "fsl-aud2htx",
+		.pm = &fsl_aud2htx_pm_ops,
+		.of_match_table = fsl_aud2htx_dt_ids,
+	},
+};
+module_platform_driver(fsl_aud2htx_driver);
+
+MODULE_AUTHOR("Shengjiu Wang <Shengjiu.Wang@nxp.com>");
+MODULE_DESCRIPTION("NXP AUD2HTX driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/fsl_aud2htx.h b/sound/soc/fsl/fsl_aud2htx.h
new file mode 100644
index 000000000..ad70d6a76
--- /dev/null
+++ b/sound/soc/fsl/fsl_aud2htx.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2020 NXP
+ */
+
+#ifndef _FSL_AUD2HTX_H
+#define _FSL_AUD2HTX_H
+
+#define FSL_AUD2HTX_FORMATS (SNDRV_PCM_FMTBIT_S24_LE | \
+			     SNDRV_PCM_FMTBIT_S32_LE)
+
+/* AUD2HTX Register Map */
+#define AUD2HTX_CTRL          0x0   /* AUD2HTX Control Register */
+#define AUD2HTX_CTRL_EXT      0x4   /* AUD2HTX Control Extended Register */
+#define AUD2HTX_WR            0x8   /* AUD2HTX Write Register */
+#define AUD2HTX_STATUS        0xC   /* AUD2HTX Status Register */
+#define AUD2HTX_IRQ_NOMASK    0x10  /* AUD2HTX Nonmasked Interrupt Flags Register */
+#define AUD2HTX_IRQ_MASKED    0x14  /* AUD2HTX Masked Interrupt Flags Register */
+#define AUD2HTX_IRQ_MASK      0x18  /* AUD2HTX IRQ Masks Register */
+
+/* AUD2HTX Control Register */
+#define AUD2HTX_CTRL_EN          BIT(0)
+
+/* AUD2HTX Control Extended Register */
+#define AUD2HTX_CTRE_DE          BIT(0)
+#define AUD2HTX_CTRE_DT_SHIFT    0x1
+#define AUD2HTX_CTRE_DT_WIDTH    0x2
+#define AUD2HTX_CTRE_DT_MASK     ((BIT(AUD2HTX_CTRE_DT_WIDTH) - 1) \
+				 << AUD2HTX_CTRE_DT_SHIFT)
+#define AUD2HTX_CTRE_WL_SHIFT    16
+#define AUD2HTX_CTRE_WL_WIDTH    5
+#define AUD2HTX_CTRE_WL_MASK     ((BIT(AUD2HTX_CTRE_WL_WIDTH) - 1) \
+				 << AUD2HTX_CTRE_WL_SHIFT)
+#define AUD2HTX_CTRE_WH_SHIFT    24
+#define AUD2HTX_CTRE_WH_WIDTH    5
+#define AUD2HTX_CTRE_WH_MASK     ((BIT(AUD2HTX_CTRE_WH_WIDTH) - 1) \
+				 << AUD2HTX_CTRE_WH_SHIFT)
+
+/* AUD2HTX IRQ Masks Register */
+#define AUD2HTX_WM_HIGH_IRQ_MASK BIT(2)
+#define AUD2HTX_WM_LOW_IRQ_MASK  BIT(1)
+#define AUD2HTX_OVF_MASK         BIT(0)
+
+#define AUD2HTX_FIFO_DEPTH       0x20
+#define AUD2HTX_WTMK_LOW         0x10
+#define AUD2HTX_WTMK_HIGH        0x10
+#define AUD2HTX_MAXBURST         0x10
+
+/**
+ * fsl_aud2htx: AUD2HTX private data
+ *
+ * @pdev: platform device pointer
+ * @regmap: regmap handler
+ * @bus_clk: clock source to access register
+ * @dma_params_rx: DMA parameters for receive channel
+ * @dma_params_tx: DMA parameters for transmit channel
+ */
+struct fsl_aud2htx {
+	struct platform_device *pdev;
+	struct regmap *regmap;
+	struct clk *bus_clk;
+
+	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	struct snd_dmaengine_dai_dma_data dma_params_tx;
+};
+
+#endif /* _FSL_AUD2HTX_H */
diff --git a/sound/soc/fsl/fsl_audmix.c b/sound/soc/fsl/fsl_audmix.c
new file mode 100644
index 000000000..672148dd4
--- /dev/null
+++ b/sound/soc/fsl/fsl_audmix.c
@@ -0,0 +1,573 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NXP AUDMIX ALSA SoC Digital Audio Interface (DAI) driver
+ *
+ * Copyright 2017 NXP
+ */
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+#include "fsl_audmix.h"
+
+#define SOC_ENUM_SINGLE_S(xreg, xshift, xtexts) \
+	SOC_ENUM_SINGLE(xreg, xshift, ARRAY_SIZE(xtexts), xtexts)
+
+static const char
+	*tdm_sel[] = { "TDM1", "TDM2", },
+	*mode_sel[] = { "Disabled", "TDM1", "TDM2", "Mixed", },
+	*width_sel[] = { "16b", "18b", "20b", "24b", "32b", },
+	*endis_sel[] = { "Disabled", "Enabled", },
+	*updn_sel[] = { "Downward", "Upward", },
+	*mask_sel[] = { "Unmask", "Mask", };
+
+static const struct soc_enum fsl_audmix_enum[] = {
+/* FSL_AUDMIX_CTR enums */
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_MIXCLK_SHIFT, tdm_sel),
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_OUTSRC_SHIFT, mode_sel),
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_OUTWIDTH_SHIFT, width_sel),
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_MASKRTDF_SHIFT, mask_sel),
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_MASKCKDF_SHIFT, mask_sel),
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_SYNCMODE_SHIFT, endis_sel),
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_CTR, FSL_AUDMIX_CTR_SYNCSRC_SHIFT, tdm_sel),
+/* FSL_AUDMIX_ATCR0 enums */
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_ATCR0, 0, endis_sel),
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_ATCR0, 1, updn_sel),
+/* FSL_AUDMIX_ATCR1 enums */
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_ATCR1, 0, endis_sel),
+SOC_ENUM_SINGLE_S(FSL_AUDMIX_ATCR1, 1, updn_sel),
+};
+
+struct fsl_audmix_state {
+	u8 tdms;
+	u8 clk;
+	char msg[64];
+};
+
+static const struct fsl_audmix_state prms[4][4] = {{
+	/* DIS->DIS, do nothing */
+	{ .tdms = 0, .clk = 0, .msg = "" },
+	/* DIS->TDM1*/
+	{ .tdms = 1, .clk = 1, .msg = "DIS->TDM1: TDM1 not started!\n" },
+	/* DIS->TDM2*/
+	{ .tdms = 2, .clk = 2, .msg = "DIS->TDM2: TDM2 not started!\n" },
+	/* DIS->MIX */
+	{ .tdms = 3, .clk = 0, .msg = "DIS->MIX: Please start both TDMs!\n" }
+}, {	/* TDM1->DIS */
+	{ .tdms = 1, .clk = 0, .msg = "TDM1->DIS: TDM1 not started!\n" },
+	/* TDM1->TDM1, do nothing */
+	{ .tdms = 0, .clk = 0, .msg = "" },
+	/* TDM1->TDM2 */
+	{ .tdms = 3, .clk = 2, .msg = "TDM1->TDM2: Please start both TDMs!\n" },
+	/* TDM1->MIX */
+	{ .tdms = 3, .clk = 0, .msg = "TDM1->MIX: Please start both TDMs!\n" }
+}, {	/* TDM2->DIS */
+	{ .tdms = 2, .clk = 0, .msg = "TDM2->DIS: TDM2 not started!\n" },
+	/* TDM2->TDM1 */
+	{ .tdms = 3, .clk = 1, .msg = "TDM2->TDM1: Please start both TDMs!\n" },
+	/* TDM2->TDM2, do nothing */
+	{ .tdms = 0, .clk = 0, .msg = "" },
+	/* TDM2->MIX */
+	{ .tdms = 3, .clk = 0, .msg = "TDM2->MIX: Please start both TDMs!\n" }
+}, {	/* MIX->DIS */
+	{ .tdms = 3, .clk = 0, .msg = "MIX->DIS: Please start both TDMs!\n" },
+	/* MIX->TDM1 */
+	{ .tdms = 3, .clk = 1, .msg = "MIX->TDM1: Please start both TDMs!\n" },
+	/* MIX->TDM2 */
+	{ .tdms = 3, .clk = 2, .msg = "MIX->TDM2: Please start both TDMs!\n" },
+	/* MIX->MIX, do nothing */
+	{ .tdms = 0, .clk = 0, .msg = "" }
+}, };
+
+static int fsl_audmix_state_trans(struct snd_soc_component *comp,
+				  unsigned int *mask, unsigned int *ctr,
+				  const struct fsl_audmix_state prm)
+{
+	struct fsl_audmix *priv = snd_soc_component_get_drvdata(comp);
+	/* Enforce all required TDMs are started */
+	if ((priv->tdms & prm.tdms) != prm.tdms) {
+		dev_dbg(comp->dev, "%s", prm.msg);
+		return -EINVAL;
+	}
+
+	switch (prm.clk) {
+	case 1:
+	case 2:
+		/* Set mix clock */
+		(*mask) |= FSL_AUDMIX_CTR_MIXCLK_MASK;
+		(*ctr)  |= FSL_AUDMIX_CTR_MIXCLK(prm.clk - 1);
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int fsl_audmix_put_mix_clk_src(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
+	struct fsl_audmix *priv = snd_soc_component_get_drvdata(comp);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int *item = ucontrol->value.enumerated.item;
+	unsigned int reg_val, val, mix_clk;
+
+	/* Get current state */
+	reg_val = snd_soc_component_read(comp, FSL_AUDMIX_CTR);
+	mix_clk = ((reg_val & FSL_AUDMIX_CTR_MIXCLK_MASK)
+			>> FSL_AUDMIX_CTR_MIXCLK_SHIFT);
+	val = snd_soc_enum_item_to_val(e, item[0]);
+
+	dev_dbg(comp->dev, "TDMs=x%08x, val=x%08x\n", priv->tdms, val);
+
+	/**
+	 * Ensure the current selected mixer clock is available
+	 * for configuration propagation
+	 */
+	if (!(priv->tdms & BIT(mix_clk))) {
+		dev_err(comp->dev,
+			"Started TDM%d needed for config propagation!\n",
+			mix_clk + 1);
+		return -EINVAL;
+	}
+
+	if (!(priv->tdms & BIT(val))) {
+		dev_err(comp->dev,
+			"The selected clock source has no TDM%d enabled!\n",
+			val + 1);
+		return -EINVAL;
+	}
+
+	return snd_soc_put_enum_double(kcontrol, ucontrol);
+}
+
+static int fsl_audmix_put_out_src(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
+	struct fsl_audmix *priv = snd_soc_component_get_drvdata(comp);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int *item = ucontrol->value.enumerated.item;
+	u32 out_src, mix_clk;
+	unsigned int reg_val, val, mask = 0, ctr = 0;
+	int ret;
+
+	/* Get current state */
+	reg_val = snd_soc_component_read(comp, FSL_AUDMIX_CTR);
+
+	/* "From" state */
+	out_src = ((reg_val & FSL_AUDMIX_CTR_OUTSRC_MASK)
+			>> FSL_AUDMIX_CTR_OUTSRC_SHIFT);
+	mix_clk = ((reg_val & FSL_AUDMIX_CTR_MIXCLK_MASK)
+			>> FSL_AUDMIX_CTR_MIXCLK_SHIFT);
+
+	/* "To" state */
+	val = snd_soc_enum_item_to_val(e, item[0]);
+
+	dev_dbg(comp->dev, "TDMs=x%08x, val=x%08x\n", priv->tdms, val);
+
+	/* Check if state is changing ... */
+	if (out_src == val)
+		return 0;
+	/**
+	 * Ensure the current selected mixer clock is available
+	 * for configuration propagation
+	 */
+	if (!(priv->tdms & BIT(mix_clk))) {
+		dev_err(comp->dev,
+			"Started TDM%d needed for config propagation!\n",
+			mix_clk + 1);
+		return -EINVAL;
+	}
+
+	/* Check state transition constraints */
+	ret = fsl_audmix_state_trans(comp, &mask, &ctr, prms[out_src][val]);
+	if (ret)
+		return ret;
+
+	/* Complete transition to new state */
+	mask |= FSL_AUDMIX_CTR_OUTSRC_MASK;
+	ctr  |= FSL_AUDMIX_CTR_OUTSRC(val);
+
+	return snd_soc_component_update_bits(comp, FSL_AUDMIX_CTR, mask, ctr);
+}
+
+static const struct snd_kcontrol_new fsl_audmix_snd_controls[] = {
+	/* FSL_AUDMIX_CTR controls */
+	SOC_ENUM_EXT("Mixing Clock Source", fsl_audmix_enum[0],
+		     snd_soc_get_enum_double, fsl_audmix_put_mix_clk_src),
+	SOC_ENUM_EXT("Output Source", fsl_audmix_enum[1],
+		     snd_soc_get_enum_double, fsl_audmix_put_out_src),
+	SOC_ENUM("Output Width", fsl_audmix_enum[2]),
+	SOC_ENUM("Frame Rate Diff Error", fsl_audmix_enum[3]),
+	SOC_ENUM("Clock Freq Diff Error", fsl_audmix_enum[4]),
+	SOC_ENUM("Sync Mode Config", fsl_audmix_enum[5]),
+	SOC_ENUM("Sync Mode Clk Source", fsl_audmix_enum[6]),
+	/* TDM1 Attenuation controls */
+	SOC_ENUM("TDM1 Attenuation", fsl_audmix_enum[7]),
+	SOC_ENUM("TDM1 Attenuation Direction", fsl_audmix_enum[8]),
+	SOC_SINGLE("TDM1 Attenuation Step Divider", FSL_AUDMIX_ATCR0,
+		   2, 0x00fff, 0),
+	SOC_SINGLE("TDM1 Attenuation Initial Value", FSL_AUDMIX_ATIVAL0,
+		   0, 0x3ffff, 0),
+	SOC_SINGLE("TDM1 Attenuation Step Up Factor", FSL_AUDMIX_ATSTPUP0,
+		   0, 0x3ffff, 0),
+	SOC_SINGLE("TDM1 Attenuation Step Down Factor", FSL_AUDMIX_ATSTPDN0,
+		   0, 0x3ffff, 0),
+	SOC_SINGLE("TDM1 Attenuation Step Target", FSL_AUDMIX_ATSTPTGT0,
+		   0, 0x3ffff, 0),
+	/* TDM2 Attenuation controls */
+	SOC_ENUM("TDM2 Attenuation", fsl_audmix_enum[9]),
+	SOC_ENUM("TDM2 Attenuation Direction", fsl_audmix_enum[10]),
+	SOC_SINGLE("TDM2 Attenuation Step Divider", FSL_AUDMIX_ATCR1,
+		   2, 0x00fff, 0),
+	SOC_SINGLE("TDM2 Attenuation Initial Value", FSL_AUDMIX_ATIVAL1,
+		   0, 0x3ffff, 0),
+	SOC_SINGLE("TDM2 Attenuation Step Up Factor", FSL_AUDMIX_ATSTPUP1,
+		   0, 0x3ffff, 0),
+	SOC_SINGLE("TDM2 Attenuation Step Down Factor", FSL_AUDMIX_ATSTPDN1,
+		   0, 0x3ffff, 0),
+	SOC_SINGLE("TDM2 Attenuation Step Target", FSL_AUDMIX_ATSTPTGT1,
+		   0, 0x3ffff, 0),
+};
+
+static int fsl_audmix_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct snd_soc_component *comp = dai->component;
+	u32 mask = 0, ctr = 0;
+
+	/* AUDMIX is working in DSP_A format only */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_DSP_A:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* For playback the AUDMIX is consumer, and for record is provider */
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BC_FC:
+	case SND_SOC_DAIFMT_BP_FP:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_IB_NF:
+		/* Output data will be written on positive edge of the clock */
+		ctr |= FSL_AUDMIX_CTR_OUTCKPOL(0);
+		break;
+	case SND_SOC_DAIFMT_NB_NF:
+		/* Output data will be written on negative edge of the clock */
+		ctr |= FSL_AUDMIX_CTR_OUTCKPOL(1);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mask |= FSL_AUDMIX_CTR_OUTCKPOL_MASK;
+
+	return snd_soc_component_update_bits(comp, FSL_AUDMIX_CTR, mask, ctr);
+}
+
+static int fsl_audmix_dai_trigger(struct snd_pcm_substream *substream, int cmd,
+				  struct snd_soc_dai *dai)
+{
+	struct fsl_audmix *priv = snd_soc_dai_get_drvdata(dai);
+	unsigned long lock_flags;
+
+	/* Capture stream shall not be handled */
+	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+		return 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		spin_lock_irqsave(&priv->lock, lock_flags);
+		priv->tdms |= BIT(dai->driver->id);
+		spin_unlock_irqrestore(&priv->lock, lock_flags);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		spin_lock_irqsave(&priv->lock, lock_flags);
+		priv->tdms &= ~BIT(dai->driver->id);
+		spin_unlock_irqrestore(&priv->lock, lock_flags);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops fsl_audmix_dai_ops = {
+	.set_fmt  = fsl_audmix_dai_set_fmt,
+	.trigger      = fsl_audmix_dai_trigger,
+};
+
+static struct snd_soc_dai_driver fsl_audmix_dai[] = {
+	{
+		.id   = 0,
+		.name = "audmix-0",
+		.playback = {
+			.stream_name = "AUDMIX-Playback-0",
+			.channels_min = 8,
+			.channels_max = 8,
+			.rate_min = 8000,
+			.rate_max = 96000,
+			.rates = SNDRV_PCM_RATE_8000_96000,
+			.formats = FSL_AUDMIX_FORMATS,
+		},
+		.capture = {
+			.stream_name = "AUDMIX-Capture-0",
+			.channels_min = 8,
+			.channels_max = 8,
+			.rate_min = 8000,
+			.rate_max = 96000,
+			.rates = SNDRV_PCM_RATE_8000_96000,
+			.formats = FSL_AUDMIX_FORMATS,
+		},
+		.ops = &fsl_audmix_dai_ops,
+	},
+	{
+		.id   = 1,
+		.name = "audmix-1",
+		.playback = {
+			.stream_name = "AUDMIX-Playback-1",
+			.channels_min = 8,
+			.channels_max = 8,
+			.rate_min = 8000,
+			.rate_max = 96000,
+			.rates = SNDRV_PCM_RATE_8000_96000,
+			.formats = FSL_AUDMIX_FORMATS,
+		},
+		.capture = {
+			.stream_name = "AUDMIX-Capture-1",
+			.channels_min = 8,
+			.channels_max = 8,
+			.rate_min = 8000,
+			.rate_max = 96000,
+			.rates = SNDRV_PCM_RATE_8000_96000,
+			.formats = FSL_AUDMIX_FORMATS,
+		},
+		.ops = &fsl_audmix_dai_ops,
+	},
+};
+
+static const struct snd_soc_component_driver fsl_audmix_component = {
+	.name		  = "fsl-audmix-dai",
+	.controls	  = fsl_audmix_snd_controls,
+	.num_controls	  = ARRAY_SIZE(fsl_audmix_snd_controls),
+};
+
+static bool fsl_audmix_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case FSL_AUDMIX_CTR:
+	case FSL_AUDMIX_STR:
+	case FSL_AUDMIX_ATCR0:
+	case FSL_AUDMIX_ATIVAL0:
+	case FSL_AUDMIX_ATSTPUP0:
+	case FSL_AUDMIX_ATSTPDN0:
+	case FSL_AUDMIX_ATSTPTGT0:
+	case FSL_AUDMIX_ATTNVAL0:
+	case FSL_AUDMIX_ATSTP0:
+	case FSL_AUDMIX_ATCR1:
+	case FSL_AUDMIX_ATIVAL1:
+	case FSL_AUDMIX_ATSTPUP1:
+	case FSL_AUDMIX_ATSTPDN1:
+	case FSL_AUDMIX_ATSTPTGT1:
+	case FSL_AUDMIX_ATTNVAL1:
+	case FSL_AUDMIX_ATSTP1:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_audmix_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case FSL_AUDMIX_CTR:
+	case FSL_AUDMIX_ATCR0:
+	case FSL_AUDMIX_ATIVAL0:
+	case FSL_AUDMIX_ATSTPUP0:
+	case FSL_AUDMIX_ATSTPDN0:
+	case FSL_AUDMIX_ATSTPTGT0:
+	case FSL_AUDMIX_ATCR1:
+	case FSL_AUDMIX_ATIVAL1:
+	case FSL_AUDMIX_ATSTPUP1:
+	case FSL_AUDMIX_ATSTPDN1:
+	case FSL_AUDMIX_ATSTPTGT1:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct reg_default fsl_audmix_reg[] = {
+	{ FSL_AUDMIX_CTR,       0x00060 },
+	{ FSL_AUDMIX_STR,       0x00003 },
+	{ FSL_AUDMIX_ATCR0,     0x00000 },
+	{ FSL_AUDMIX_ATIVAL0,   0x3FFFF },
+	{ FSL_AUDMIX_ATSTPUP0,  0x2AAAA },
+	{ FSL_AUDMIX_ATSTPDN0,  0x30000 },
+	{ FSL_AUDMIX_ATSTPTGT0, 0x00010 },
+	{ FSL_AUDMIX_ATTNVAL0,  0x00000 },
+	{ FSL_AUDMIX_ATSTP0,    0x00000 },
+	{ FSL_AUDMIX_ATCR1,     0x00000 },
+	{ FSL_AUDMIX_ATIVAL1,   0x3FFFF },
+	{ FSL_AUDMIX_ATSTPUP1,  0x2AAAA },
+	{ FSL_AUDMIX_ATSTPDN1,  0x30000 },
+	{ FSL_AUDMIX_ATSTPTGT1, 0x00010 },
+	{ FSL_AUDMIX_ATTNVAL1,  0x00000 },
+	{ FSL_AUDMIX_ATSTP1,    0x00000 },
+};
+
+static const struct regmap_config fsl_audmix_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = FSL_AUDMIX_ATSTP1,
+	.reg_defaults = fsl_audmix_reg,
+	.num_reg_defaults = ARRAY_SIZE(fsl_audmix_reg),
+	.readable_reg = fsl_audmix_readable_reg,
+	.writeable_reg = fsl_audmix_writeable_reg,
+	.cache_type = REGCACHE_FLAT,
+};
+
+static const struct of_device_id fsl_audmix_ids[] = {
+	{
+		.compatible = "fsl,imx8qm-audmix",
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, fsl_audmix_ids);
+
+static int fsl_audmix_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct fsl_audmix *priv;
+	void __iomem *regs;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	/* Get the addresses */
+	regs = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	priv->regmap = devm_regmap_init_mmio(dev, regs, &fsl_audmix_regmap_config);
+	if (IS_ERR(priv->regmap)) {
+		dev_err(dev, "failed to init regmap\n");
+		return PTR_ERR(priv->regmap);
+	}
+
+	priv->ipg_clk = devm_clk_get(dev, "ipg");
+	if (IS_ERR(priv->ipg_clk)) {
+		dev_err(dev, "failed to get ipg clock\n");
+		return PTR_ERR(priv->ipg_clk);
+	}
+
+	spin_lock_init(&priv->lock);
+	platform_set_drvdata(pdev, priv);
+	pm_runtime_enable(dev);
+
+	ret = devm_snd_soc_register_component(dev, &fsl_audmix_component,
+					      fsl_audmix_dai,
+					      ARRAY_SIZE(fsl_audmix_dai));
+	if (ret) {
+		dev_err(dev, "failed to register ASoC DAI\n");
+		goto err_disable_pm;
+	}
+
+	priv->pdev = platform_device_register_data(dev, "imx-audmix", 0, NULL, 0);
+	if (IS_ERR(priv->pdev)) {
+		ret = PTR_ERR(priv->pdev);
+		dev_err(dev, "failed to register platform: %d\n", ret);
+		goto err_disable_pm;
+	}
+
+	return 0;
+
+err_disable_pm:
+	pm_runtime_disable(dev);
+	return ret;
+}
+
+static int fsl_audmix_remove(struct platform_device *pdev)
+{
+	struct fsl_audmix *priv = dev_get_drvdata(&pdev->dev);
+
+	pm_runtime_disable(&pdev->dev);
+
+	if (priv->pdev)
+		platform_device_unregister(priv->pdev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int fsl_audmix_runtime_resume(struct device *dev)
+{
+	struct fsl_audmix *priv = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(priv->ipg_clk);
+	if (ret) {
+		dev_err(dev, "Failed to enable IPG clock: %d\n", ret);
+		return ret;
+	}
+
+	regcache_cache_only(priv->regmap, false);
+	regcache_mark_dirty(priv->regmap);
+
+	return regcache_sync(priv->regmap);
+}
+
+static int fsl_audmix_runtime_suspend(struct device *dev)
+{
+	struct fsl_audmix *priv = dev_get_drvdata(dev);
+
+	regcache_cache_only(priv->regmap, true);
+
+	clk_disable_unprepare(priv->ipg_clk);
+
+	return 0;
+}
+#endif /* CONFIG_PM */
+
+static const struct dev_pm_ops fsl_audmix_pm = {
+	SET_RUNTIME_PM_OPS(fsl_audmix_runtime_suspend,
+			   fsl_audmix_runtime_resume,
+			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static struct platform_driver fsl_audmix_driver = {
+	.probe = fsl_audmix_probe,
+	.remove = fsl_audmix_remove,
+	.driver = {
+		.name = "fsl-audmix",
+		.of_match_table = fsl_audmix_ids,
+		.pm = &fsl_audmix_pm,
+	},
+};
+module_platform_driver(fsl_audmix_driver);
+
+MODULE_DESCRIPTION("NXP AUDMIX ASoC DAI driver");
+MODULE_AUTHOR("Viorel Suman <viorel.suman@nxp.com>");
+MODULE_ALIAS("platform:fsl-audmix");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/fsl_audmix.h b/sound/soc/fsl/fsl_audmix.h
new file mode 100644
index 000000000..479f05695
--- /dev/null
+++ b/sound/soc/fsl/fsl_audmix.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * NXP AUDMIX ALSA SoC Digital Audio Interface (DAI) driver
+ *
+ * Copyright 2017 NXP
+ */
+
+#ifndef __FSL_AUDMIX_H
+#define __FSL_AUDMIX_H
+
+#define FSL_AUDMIX_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+			SNDRV_PCM_FMTBIT_S24_LE |\
+			SNDRV_PCM_FMTBIT_S32_LE)
+/* AUDMIX Registers */
+#define FSL_AUDMIX_CTR		0x200 /* Control */
+#define FSL_AUDMIX_STR		0x204 /* Status */
+
+#define FSL_AUDMIX_ATCR0	0x208 /* Attenuation Control */
+#define FSL_AUDMIX_ATIVAL0	0x20c /* Attenuation Initial Value */
+#define FSL_AUDMIX_ATSTPUP0	0x210 /* Attenuation step up factor */
+#define FSL_AUDMIX_ATSTPDN0	0x214 /* Attenuation step down factor */
+#define FSL_AUDMIX_ATSTPTGT0	0x218 /* Attenuation step target */
+#define FSL_AUDMIX_ATTNVAL0	0x21c /* Attenuation Value */
+#define FSL_AUDMIX_ATSTP0	0x220 /* Attenuation step number */
+
+#define FSL_AUDMIX_ATCR1	0x228 /* Attenuation Control */
+#define FSL_AUDMIX_ATIVAL1	0x22c /* Attenuation Initial Value */
+#define FSL_AUDMIX_ATSTPUP1	0x230 /* Attenuation step up factor */
+#define FSL_AUDMIX_ATSTPDN1	0x234 /* Attenuation step down factor */
+#define FSL_AUDMIX_ATSTPTGT1	0x238 /* Attenuation step target */
+#define FSL_AUDMIX_ATTNVAL1	0x23c /* Attenuation Value */
+#define FSL_AUDMIX_ATSTP1	0x240 /* Attenuation step number */
+
+/* AUDMIX Control Register */
+#define FSL_AUDMIX_CTR_MIXCLK_SHIFT	0
+#define FSL_AUDMIX_CTR_MIXCLK_MASK	BIT(FSL_AUDMIX_CTR_MIXCLK_SHIFT)
+#define FSL_AUDMIX_CTR_MIXCLK(i)	((i) << FSL_AUDMIX_CTR_MIXCLK_SHIFT)
+#define FSL_AUDMIX_CTR_OUTSRC_SHIFT	1
+#define FSL_AUDMIX_CTR_OUTSRC_MASK	(0x3 << FSL_AUDMIX_CTR_OUTSRC_SHIFT)
+#define FSL_AUDMIX_CTR_OUTSRC(i)	(((i) << FSL_AUDMIX_CTR_OUTSRC_SHIFT)\
+					      & FSL_AUDMIX_CTR_OUTSRC_MASK)
+#define FSL_AUDMIX_CTR_OUTWIDTH_SHIFT	3
+#define FSL_AUDMIX_CTR_OUTWIDTH_MASK	(0x7 << FSL_AUDMIX_CTR_OUTWIDTH_SHIFT)
+#define FSL_AUDMIX_CTR_OUTWIDTH(i)	(((i) << FSL_AUDMIX_CTR_OUTWIDTH_SHIFT)\
+					      & FSL_AUDMIX_CTR_OUTWIDTH_MASK)
+#define FSL_AUDMIX_CTR_OUTCKPOL_SHIFT	6
+#define FSL_AUDMIX_CTR_OUTCKPOL_MASK	BIT(FSL_AUDMIX_CTR_OUTCKPOL_SHIFT)
+#define FSL_AUDMIX_CTR_OUTCKPOL(i)	((i) << FSL_AUDMIX_CTR_OUTCKPOL_SHIFT)
+#define FSL_AUDMIX_CTR_MASKRTDF_SHIFT	7
+#define FSL_AUDMIX_CTR_MASKRTDF_MASK	BIT(FSL_AUDMIX_CTR_MASKRTDF_SHIFT)
+#define FSL_AUDMIX_CTR_MASKRTDF(i)	((i) << FSL_AUDMIX_CTR_MASKRTDF_SHIFT)
+#define FSL_AUDMIX_CTR_MASKCKDF_SHIFT	8
+#define FSL_AUDMIX_CTR_MASKCKDF_MASK	BIT(FSL_AUDMIX_CTR_MASKCKDF_SHIFT)
+#define FSL_AUDMIX_CTR_MASKCKDF(i)	((i) << FSL_AUDMIX_CTR_MASKCKDF_SHIFT)
+#define FSL_AUDMIX_CTR_SYNCMODE_SHIFT	9
+#define FSL_AUDMIX_CTR_SYNCMODE_MASK	BIT(FSL_AUDMIX_CTR_SYNCMODE_SHIFT)
+#define FSL_AUDMIX_CTR_SYNCMODE(i)	((i) << FSL_AUDMIX_CTR_SYNCMODE_SHIFT)
+#define FSL_AUDMIX_CTR_SYNCSRC_SHIFT	10
+#define FSL_AUDMIX_CTR_SYNCSRC_MASK	BIT(FSL_AUDMIX_CTR_SYNCSRC_SHIFT)
+#define FSL_AUDMIX_CTR_SYNCSRC(i)	((i) << FSL_AUDMIX_CTR_SYNCSRC_SHIFT)
+
+/* AUDMIX Status Register */
+#define FSL_AUDMIX_STR_RATEDIFF		BIT(0)
+#define FSL_AUDMIX_STR_CLKDIFF		BIT(1)
+#define FSL_AUDMIX_STR_MIXSTAT_SHIFT	2
+#define FSL_AUDMIX_STR_MIXSTAT_MASK	(0x3 << FSL_AUDMIX_STR_MIXSTAT_SHIFT)
+#define FSL_AUDMIX_STR_MIXSTAT(i)	(((i) & FSL_AUDMIX_STR_MIXSTAT_MASK) \
+					   >> FSL_AUDMIX_STR_MIXSTAT_SHIFT)
+/* AUDMIX Attenuation Control Register */
+#define FSL_AUDMIX_ATCR_AT_EN		BIT(0)
+#define FSL_AUDMIX_ATCR_AT_UPDN		BIT(1)
+#define FSL_AUDMIX_ATCR_ATSTPDIF_SHIFT	2
+#define FSL_AUDMIX_ATCR_ATSTPDFI_MASK	\
+				(0xfff << FSL_AUDMIX_ATCR_ATSTPDIF_SHIFT)
+
+/* AUDMIX Attenuation Initial Value Register */
+#define FSL_AUDMIX_ATIVAL_ATINVAL_MASK	0x3FFFF
+
+/* AUDMIX Attenuation Step Up Factor Register */
+#define FSL_AUDMIX_ATSTPUP_ATSTEPUP_MASK	0x3FFFF
+
+/* AUDMIX Attenuation Step Down Factor Register */
+#define FSL_AUDMIX_ATSTPDN_ATSTEPDN_MASK	0x3FFFF
+
+/* AUDMIX Attenuation Step Target Register */
+#define FSL_AUDMIX_ATSTPTGT_ATSTPTG_MASK	0x3FFFF
+
+/* AUDMIX Attenuation Value Register */
+#define FSL_AUDMIX_ATTNVAL_ATCURVAL_MASK	0x3FFFF
+
+/* AUDMIX Attenuation Step Number Register */
+#define FSL_AUDMIX_ATSTP_STPCTR_MASK	0x3FFFF
+
+#define FSL_AUDMIX_MAX_DAIS		2
+struct fsl_audmix {
+	struct platform_device *pdev;
+	struct regmap *regmap;
+	struct clk *ipg_clk;
+	spinlock_t lock; /* Protect tdms */
+	u8 tdms;
+};
+
+#endif /* __FSL_AUDMIX_H */
diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
new file mode 100644
index 000000000..808fb61a7
--- /dev/null
+++ b/sound/soc/fsl/fsl_dma.c
@@ -0,0 +1,923 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale DMA ALSA SoC PCM driver
+//
+// Author: Timur Tabi <timur@freescale.com>
+//
+// Copyright 2007-2010 Freescale Semiconductor, Inc.
+//
+// This driver implements ASoC support for the Elo DMA controller, which is
+// the DMA controller on Freescale 83xx, 85xx, and 86xx SOCs. In ALSA terms,
+// the PCM driver is what handles the DMA buffer.
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/gfp.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <asm/io.h>
+
+#include "fsl_dma.h"
+#include "fsl_ssi.h"	/* For the offset of stx0 and srx0 */
+
+#define DRV_NAME "fsl_dma"
+
+/*
+ * The formats that the DMA controller supports, which is anything
+ * that is 8, 16, or 32 bits.
+ */
+#define FSLDMA_PCM_FORMATS (SNDRV_PCM_FMTBIT_S8 	| \
+			    SNDRV_PCM_FMTBIT_U8 	| \
+			    SNDRV_PCM_FMTBIT_S16_LE     | \
+			    SNDRV_PCM_FMTBIT_S16_BE     | \
+			    SNDRV_PCM_FMTBIT_U16_LE     | \
+			    SNDRV_PCM_FMTBIT_U16_BE     | \
+			    SNDRV_PCM_FMTBIT_S24_LE     | \
+			    SNDRV_PCM_FMTBIT_S24_BE     | \
+			    SNDRV_PCM_FMTBIT_U24_LE     | \
+			    SNDRV_PCM_FMTBIT_U24_BE     | \
+			    SNDRV_PCM_FMTBIT_S32_LE     | \
+			    SNDRV_PCM_FMTBIT_S32_BE     | \
+			    SNDRV_PCM_FMTBIT_U32_LE     | \
+			    SNDRV_PCM_FMTBIT_U32_BE)
+struct dma_object {
+	struct snd_soc_component_driver dai;
+	dma_addr_t ssi_stx_phys;
+	dma_addr_t ssi_srx_phys;
+	unsigned int ssi_fifo_depth;
+	struct ccsr_dma_channel __iomem *channel;
+	unsigned int irq;
+	bool assigned;
+};
+
+/*
+ * The number of DMA links to use.  Two is the bare minimum, but if you
+ * have really small links you might need more.
+ */
+#define NUM_DMA_LINKS   2
+
+/** fsl_dma_private: p-substream DMA data
+ *
+ * Each substream has a 1-to-1 association with a DMA channel.
+ *
+ * The link[] array is first because it needs to be aligned on a 32-byte
+ * boundary, so putting it first will ensure alignment without padding the
+ * structure.
+ *
+ * @link[]: array of link descriptors
+ * @dma_channel: pointer to the DMA channel's registers
+ * @irq: IRQ for this DMA channel
+ * @substream: pointer to the substream object, needed by the ISR
+ * @ssi_sxx_phys: bus address of the STX or SRX register to use
+ * @ld_buf_phys: physical address of the LD buffer
+ * @current_link: index into link[] of the link currently being processed
+ * @dma_buf_phys: physical address of the DMA buffer
+ * @dma_buf_next: physical address of the next period to process
+ * @dma_buf_end: physical address of the byte after the end of the DMA
+ * @buffer period_size: the size of a single period
+ * @num_periods: the number of periods in the DMA buffer
+ */
+struct fsl_dma_private {
+	struct fsl_dma_link_descriptor link[NUM_DMA_LINKS];
+	struct ccsr_dma_channel __iomem *dma_channel;
+	unsigned int irq;
+	struct snd_pcm_substream *substream;
+	dma_addr_t ssi_sxx_phys;
+	unsigned int ssi_fifo_depth;
+	dma_addr_t ld_buf_phys;
+	unsigned int current_link;
+	dma_addr_t dma_buf_phys;
+	dma_addr_t dma_buf_next;
+	dma_addr_t dma_buf_end;
+	size_t period_size;
+	unsigned int num_periods;
+};
+
+/**
+ * fsl_dma_hardare: define characteristics of the PCM hardware.
+ *
+ * The PCM hardware is the Freescale DMA controller.  This structure defines
+ * the capabilities of that hardware.
+ *
+ * Since the sampling rate and data format are not controlled by the DMA
+ * controller, we specify no limits for those values.  The only exception is
+ * period_bytes_min, which is set to a reasonably low value to prevent the
+ * DMA controller from generating too many interrupts per second.
+ *
+ * Since each link descriptor has a 32-bit byte count field, we set
+ * period_bytes_max to the largest 32-bit number.  We also have no maximum
+ * number of periods.
+ *
+ * Note that we specify SNDRV_PCM_INFO_JOINT_DUPLEX here, but only because a
+ * limitation in the SSI driver requires the sample rates for playback and
+ * capture to be the same.
+ */
+static const struct snd_pcm_hardware fsl_dma_hardware = {
+
+	.info   		= SNDRV_PCM_INFO_INTERLEAVED |
+				  SNDRV_PCM_INFO_MMAP |
+				  SNDRV_PCM_INFO_MMAP_VALID |
+				  SNDRV_PCM_INFO_JOINT_DUPLEX |
+				  SNDRV_PCM_INFO_PAUSE,
+	.formats		= FSLDMA_PCM_FORMATS,
+	.period_bytes_min       = 512,  	/* A reasonable limit */
+	.period_bytes_max       = (u32) -1,
+	.periods_min    	= NUM_DMA_LINKS,
+	.periods_max    	= (unsigned int) -1,
+	.buffer_bytes_max       = 128 * 1024,   /* A reasonable limit */
+};
+
+/**
+ * fsl_dma_abort_stream: tell ALSA that the DMA transfer has aborted
+ *
+ * This function should be called by the ISR whenever the DMA controller
+ * halts data transfer.
+ */
+static void fsl_dma_abort_stream(struct snd_pcm_substream *substream)
+{
+	snd_pcm_stop_xrun(substream);
+}
+
+/**
+ * fsl_dma_update_pointers - update LD pointers to point to the next period
+ *
+ * As each period is completed, this function changes the link
+ * descriptor pointers for that period to point to the next period.
+ */
+static void fsl_dma_update_pointers(struct fsl_dma_private *dma_private)
+{
+	struct fsl_dma_link_descriptor *link =
+		&dma_private->link[dma_private->current_link];
+
+	/* Update our link descriptors to point to the next period. On a 36-bit
+	 * system, we also need to update the ESAD bits.  We also set (keep) the
+	 * snoop bits.  See the comments in fsl_dma_hw_params() about snooping.
+	 */
+	if (dma_private->substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		link->source_addr = cpu_to_be32(dma_private->dma_buf_next);
+#ifdef CONFIG_PHYS_64BIT
+		link->source_attr = cpu_to_be32(CCSR_DMA_ATR_SNOOP |
+			upper_32_bits(dma_private->dma_buf_next));
+#endif
+	} else {
+		link->dest_addr = cpu_to_be32(dma_private->dma_buf_next);
+#ifdef CONFIG_PHYS_64BIT
+		link->dest_attr = cpu_to_be32(CCSR_DMA_ATR_SNOOP |
+			upper_32_bits(dma_private->dma_buf_next));
+#endif
+	}
+
+	/* Update our variables for next time */
+	dma_private->dma_buf_next += dma_private->period_size;
+
+	if (dma_private->dma_buf_next >= dma_private->dma_buf_end)
+		dma_private->dma_buf_next = dma_private->dma_buf_phys;
+
+	if (++dma_private->current_link >= NUM_DMA_LINKS)
+		dma_private->current_link = 0;
+}
+
+/**
+ * fsl_dma_isr: interrupt handler for the DMA controller
+ *
+ * @irq: IRQ of the DMA channel
+ * @dev_id: pointer to the dma_private structure for this DMA channel
+ */
+static irqreturn_t fsl_dma_isr(int irq, void *dev_id)
+{
+	struct fsl_dma_private *dma_private = dev_id;
+	struct snd_pcm_substream *substream = dma_private->substream;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct device *dev = rtd->dev;
+	struct ccsr_dma_channel __iomem *dma_channel = dma_private->dma_channel;
+	irqreturn_t ret = IRQ_NONE;
+	u32 sr, sr2 = 0;
+
+	/* We got an interrupt, so read the status register to see what we
+	   were interrupted for.
+	 */
+	sr = in_be32(&dma_channel->sr);
+
+	if (sr & CCSR_DMA_SR_TE) {
+		dev_err(dev, "dma transmit error\n");
+		fsl_dma_abort_stream(substream);
+		sr2 |= CCSR_DMA_SR_TE;
+		ret = IRQ_HANDLED;
+	}
+
+	if (sr & CCSR_DMA_SR_CH)
+		ret = IRQ_HANDLED;
+
+	if (sr & CCSR_DMA_SR_PE) {
+		dev_err(dev, "dma programming error\n");
+		fsl_dma_abort_stream(substream);
+		sr2 |= CCSR_DMA_SR_PE;
+		ret = IRQ_HANDLED;
+	}
+
+	if (sr & CCSR_DMA_SR_EOLNI) {
+		sr2 |= CCSR_DMA_SR_EOLNI;
+		ret = IRQ_HANDLED;
+	}
+
+	if (sr & CCSR_DMA_SR_CB)
+		ret = IRQ_HANDLED;
+
+	if (sr & CCSR_DMA_SR_EOSI) {
+		/* Tell ALSA we completed a period. */
+		snd_pcm_period_elapsed(substream);
+
+		/*
+		 * Update our link descriptors to point to the next period. We
+		 * only need to do this if the number of periods is not equal to
+		 * the number of links.
+		 */
+		if (dma_private->num_periods != NUM_DMA_LINKS)
+			fsl_dma_update_pointers(dma_private);
+
+		sr2 |= CCSR_DMA_SR_EOSI;
+		ret = IRQ_HANDLED;
+	}
+
+	if (sr & CCSR_DMA_SR_EOLSI) {
+		sr2 |= CCSR_DMA_SR_EOLSI;
+		ret = IRQ_HANDLED;
+	}
+
+	/* Clear the bits that we set */
+	if (sr2)
+		out_be32(&dma_channel->sr, sr2);
+
+	return ret;
+}
+
+/**
+ * fsl_dma_new: initialize this PCM driver.
+ *
+ * This function is called when the codec driver calls snd_soc_new_pcms(),
+ * once for each .dai_link in the machine driver's snd_soc_card
+ * structure.
+ *
+ * snd_dma_alloc_pages() is just a front-end to dma_alloc_coherent(), which
+ * (currently) always allocates the DMA buffer in lowmem, even if GFP_HIGHMEM
+ * is specified. Therefore, any DMA buffers we allocate will always be in low
+ * memory, but we support for 36-bit physical addresses anyway.
+ *
+ * Regardless of where the memory is actually allocated, since the device can
+ * technically DMA to any 36-bit address, we do need to set the DMA mask to 36.
+ */
+static int fsl_dma_new(struct snd_soc_component *component,
+		       struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_card *card = rtd->card->snd_card;
+	struct snd_pcm *pcm = rtd->pcm;
+	int ret;
+
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(36));
+	if (ret)
+		return ret;
+
+	return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+					    card->dev,
+					    fsl_dma_hardware.buffer_bytes_max);
+}
+
+/**
+ * fsl_dma_open: open a new substream.
+ *
+ * Each substream has its own DMA buffer.
+ *
+ * ALSA divides the DMA buffer into N periods.  We create NUM_DMA_LINKS link
+ * descriptors that ping-pong from one period to the next.  For example, if
+ * there are six periods and two link descriptors, this is how they look
+ * before playback starts:
+ *
+ *      	   The last link descriptor
+ *   ____________  points back to the first
+ *  |   	 |
+ *  V   	 |
+ *  ___    ___   |
+ * |   |->|   |->|
+ * |___|  |___|
+ *   |      |
+ *   |      |
+ *   V      V
+ *  _________________________________________
+ * |      |      |      |      |      |      |  The DMA buffer is
+ * |      |      |      |      |      |      |    divided into 6 parts
+ * |______|______|______|______|______|______|
+ *
+ * and here's how they look after the first period is finished playing:
+ *
+ *   ____________
+ *  |   	 |
+ *  V   	 |
+ *  ___    ___   |
+ * |   |->|   |->|
+ * |___|  |___|
+ *   |      |
+ *   |______________
+ *          |       |
+ *          V       V
+ *  _________________________________________
+ * |      |      |      |      |      |      |
+ * |      |      |      |      |      |      |
+ * |______|______|______|______|______|______|
+ *
+ * The first link descriptor now points to the third period.  The DMA
+ * controller is currently playing the second period.  When it finishes, it
+ * will jump back to the first descriptor and play the third period.
+ *
+ * There are four reasons we do this:
+ *
+ * 1. The only way to get the DMA controller to automatically restart the
+ *    transfer when it gets to the end of the buffer is to use chaining
+ *    mode.  Basic direct mode doesn't offer that feature.
+ * 2. We need to receive an interrupt at the end of every period.  The DMA
+ *    controller can generate an interrupt at the end of every link transfer
+ *    (aka segment).  Making each period into a DMA segment will give us the
+ *    interrupts we need.
+ * 3. By creating only two link descriptors, regardless of the number of
+ *    periods, we do not need to reallocate the link descriptors if the
+ *    number of periods changes.
+ * 4. All of the audio data is still stored in a single, contiguous DMA
+ *    buffer, which is what ALSA expects.  We're just dividing it into
+ *    contiguous parts, and creating a link descriptor for each one.
+ */
+static int fsl_dma_open(struct snd_soc_component *component,
+			struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct device *dev = component->dev;
+	struct dma_object *dma =
+		container_of(component->driver, struct dma_object, dai);
+	struct fsl_dma_private *dma_private;
+	struct ccsr_dma_channel __iomem *dma_channel;
+	dma_addr_t ld_buf_phys;
+	u64 temp_link;  	/* Pointer to next link descriptor */
+	u32 mr;
+	int ret = 0;
+	unsigned int i;
+
+	/*
+	 * Reject any DMA buffer whose size is not a multiple of the period
+	 * size.  We need to make sure that the DMA buffer can be evenly divided
+	 * into periods.
+	 */
+	ret = snd_pcm_hw_constraint_integer(runtime,
+		SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0) {
+		dev_err(dev, "invalid buffer size\n");
+		return ret;
+	}
+
+	if (dma->assigned) {
+		dev_err(dev, "dma channel already assigned\n");
+		return -EBUSY;
+	}
+
+	dma_private = dma_alloc_coherent(dev, sizeof(struct fsl_dma_private),
+					 &ld_buf_phys, GFP_KERNEL);
+	if (!dma_private) {
+		dev_err(dev, "can't allocate dma private data\n");
+		return -ENOMEM;
+	}
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		dma_private->ssi_sxx_phys = dma->ssi_stx_phys;
+	else
+		dma_private->ssi_sxx_phys = dma->ssi_srx_phys;
+
+	dma_private->ssi_fifo_depth = dma->ssi_fifo_depth;
+	dma_private->dma_channel = dma->channel;
+	dma_private->irq = dma->irq;
+	dma_private->substream = substream;
+	dma_private->ld_buf_phys = ld_buf_phys;
+	dma_private->dma_buf_phys = substream->dma_buffer.addr;
+
+	ret = request_irq(dma_private->irq, fsl_dma_isr, 0, "fsldma-audio",
+			  dma_private);
+	if (ret) {
+		dev_err(dev, "can't register ISR for IRQ %u (ret=%i)\n",
+			dma_private->irq, ret);
+		dma_free_coherent(dev, sizeof(struct fsl_dma_private),
+			dma_private, dma_private->ld_buf_phys);
+		return ret;
+	}
+
+	dma->assigned = true;
+
+	snd_soc_set_runtime_hwparams(substream, &fsl_dma_hardware);
+	runtime->private_data = dma_private;
+
+	/* Program the fixed DMA controller parameters */
+
+	dma_channel = dma_private->dma_channel;
+
+	temp_link = dma_private->ld_buf_phys +
+		sizeof(struct fsl_dma_link_descriptor);
+
+	for (i = 0; i < NUM_DMA_LINKS; i++) {
+		dma_private->link[i].next = cpu_to_be64(temp_link);
+
+		temp_link += sizeof(struct fsl_dma_link_descriptor);
+	}
+	/* The last link descriptor points to the first */
+	dma_private->link[i - 1].next = cpu_to_be64(dma_private->ld_buf_phys);
+
+	/* Tell the DMA controller where the first link descriptor is */
+	out_be32(&dma_channel->clndar,
+		CCSR_DMA_CLNDAR_ADDR(dma_private->ld_buf_phys));
+	out_be32(&dma_channel->eclndar,
+		CCSR_DMA_ECLNDAR_ADDR(dma_private->ld_buf_phys));
+
+	/* The manual says the BCR must be clear before enabling EMP */
+	out_be32(&dma_channel->bcr, 0);
+
+	/*
+	 * Program the mode register for interrupts, external master control,
+	 * and source/destination hold.  Also clear the Channel Abort bit.
+	 */
+	mr = in_be32(&dma_channel->mr) &
+		~(CCSR_DMA_MR_CA | CCSR_DMA_MR_DAHE | CCSR_DMA_MR_SAHE);
+
+	/*
+	 * We want External Master Start and External Master Pause enabled,
+	 * because the SSI is controlling the DMA controller.  We want the DMA
+	 * controller to be set up in advance, and then we signal only the SSI
+	 * to start transferring.
+	 *
+	 * We want End-Of-Segment Interrupts enabled, because this will generate
+	 * an interrupt at the end of each segment (each link descriptor
+	 * represents one segment).  Each DMA segment is the same thing as an
+	 * ALSA period, so this is how we get an interrupt at the end of every
+	 * period.
+	 *
+	 * We want Error Interrupt enabled, so that we can get an error if
+	 * the DMA controller is mis-programmed somehow.
+	 */
+	mr |= CCSR_DMA_MR_EOSIE | CCSR_DMA_MR_EIE | CCSR_DMA_MR_EMP_EN |
+		CCSR_DMA_MR_EMS_EN;
+
+	/* For playback, we want the destination address to be held.  For
+	   capture, set the source address to be held. */
+	mr |= (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) ?
+		CCSR_DMA_MR_DAHE : CCSR_DMA_MR_SAHE;
+
+	out_be32(&dma_channel->mr, mr);
+
+	return 0;
+}
+
+/**
+ * fsl_dma_hw_params: continue initializing the DMA links
+ *
+ * This function obtains hardware parameters about the opened stream and
+ * programs the DMA controller accordingly.
+ *
+ * One drawback of big-endian is that when copying integers of different
+ * sizes to a fixed-sized register, the address to which the integer must be
+ * copied is dependent on the size of the integer.
+ *
+ * For example, if P is the address of a 32-bit register, and X is a 32-bit
+ * integer, then X should be copied to address P.  However, if X is a 16-bit
+ * integer, then it should be copied to P+2.  If X is an 8-bit register,
+ * then it should be copied to P+3.
+ *
+ * So for playback of 8-bit samples, the DMA controller must transfer single
+ * bytes from the DMA buffer to the last byte of the STX0 register, i.e.
+ * offset by 3 bytes. For 16-bit samples, the offset is two bytes.
+ *
+ * For 24-bit samples, the offset is 1 byte.  However, the DMA controller
+ * does not support 3-byte copies (the DAHTS register supports only 1, 2, 4,
+ * and 8 bytes at a time).  So we do not support packed 24-bit samples.
+ * 24-bit data must be padded to 32 bits.
+ */
+static int fsl_dma_hw_params(struct snd_soc_component *component,
+			     struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *hw_params)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_dma_private *dma_private = runtime->private_data;
+	struct device *dev = component->dev;
+
+	/* Number of bits per sample */
+	unsigned int sample_bits =
+		snd_pcm_format_physical_width(params_format(hw_params));
+
+	/* Number of bytes per frame */
+	unsigned int sample_bytes = sample_bits / 8;
+
+	/* Bus address of SSI STX register */
+	dma_addr_t ssi_sxx_phys = dma_private->ssi_sxx_phys;
+
+	/* Size of the DMA buffer, in bytes */
+	size_t buffer_size = params_buffer_bytes(hw_params);
+
+	/* Number of bytes per period */
+	size_t period_size = params_period_bytes(hw_params);
+
+	/* Pointer to next period */
+	dma_addr_t temp_addr = substream->dma_buffer.addr;
+
+	/* Pointer to DMA controller */
+	struct ccsr_dma_channel __iomem *dma_channel = dma_private->dma_channel;
+
+	u32 mr; /* DMA Mode Register */
+
+	unsigned int i;
+
+	/* Initialize our DMA tracking variables */
+	dma_private->period_size = period_size;
+	dma_private->num_periods = params_periods(hw_params);
+	dma_private->dma_buf_end = dma_private->dma_buf_phys + buffer_size;
+	dma_private->dma_buf_next = dma_private->dma_buf_phys +
+		(NUM_DMA_LINKS * period_size);
+
+	if (dma_private->dma_buf_next >= dma_private->dma_buf_end)
+		/* This happens if the number of periods == NUM_DMA_LINKS */
+		dma_private->dma_buf_next = dma_private->dma_buf_phys;
+
+	mr = in_be32(&dma_channel->mr) & ~(CCSR_DMA_MR_BWC_MASK |
+		  CCSR_DMA_MR_SAHTS_MASK | CCSR_DMA_MR_DAHTS_MASK);
+
+	/* Due to a quirk of the SSI's STX register, the target address
+	 * for the DMA operations depends on the sample size.  So we calculate
+	 * that offset here.  While we're at it, also tell the DMA controller
+	 * how much data to transfer per sample.
+	 */
+	switch (sample_bits) {
+	case 8:
+		mr |= CCSR_DMA_MR_DAHTS_1 | CCSR_DMA_MR_SAHTS_1;
+		ssi_sxx_phys += 3;
+		break;
+	case 16:
+		mr |= CCSR_DMA_MR_DAHTS_2 | CCSR_DMA_MR_SAHTS_2;
+		ssi_sxx_phys += 2;
+		break;
+	case 32:
+		mr |= CCSR_DMA_MR_DAHTS_4 | CCSR_DMA_MR_SAHTS_4;
+		break;
+	default:
+		/* We should never get here */
+		dev_err(dev, "unsupported sample size %u\n", sample_bits);
+		return -EINVAL;
+	}
+
+	/*
+	 * BWC determines how many bytes are sent/received before the DMA
+	 * controller checks the SSI to see if it needs to stop. BWC should
+	 * always be a multiple of the frame size, so that we always transmit
+	 * whole frames.  Each frame occupies two slots in the FIFO.  The
+	 * parameter for CCSR_DMA_MR_BWC() is rounded down the next power of two
+	 * (MR[BWC] can only represent even powers of two).
+	 *
+	 * To simplify the process, we set BWC to the largest value that is
+	 * less than or equal to the FIFO watermark.  For playback, this ensures
+	 * that we transfer the maximum amount without overrunning the FIFO.
+	 * For capture, this ensures that we transfer the maximum amount without
+	 * underrunning the FIFO.
+	 *
+	 * f = SSI FIFO depth
+	 * w = SSI watermark value (which equals f - 2)
+	 * b = DMA bandwidth count (in bytes)
+	 * s = sample size (in bytes, which equals frame_size * 2)
+	 *
+	 * For playback, we never transmit more than the transmit FIFO
+	 * watermark, otherwise we might write more data than the FIFO can hold.
+	 * The watermark is equal to the FIFO depth minus two.
+	 *
+	 * For capture, two equations must hold:
+	 *	w > f - (b / s)
+	 *	w >= b / s
+	 *
+	 * So, b > 2 * s, but b must also be <= s * w.  To simplify, we set
+	 * b = s * w, which is equal to
+	 *      (dma_private->ssi_fifo_depth - 2) * sample_bytes.
+	 */
+	mr |= CCSR_DMA_MR_BWC((dma_private->ssi_fifo_depth - 2) * sample_bytes);
+
+	out_be32(&dma_channel->mr, mr);
+
+	for (i = 0; i < NUM_DMA_LINKS; i++) {
+		struct fsl_dma_link_descriptor *link = &dma_private->link[i];
+
+		link->count = cpu_to_be32(period_size);
+
+		/* The snoop bit tells the DMA controller whether it should tell
+		 * the ECM to snoop during a read or write to an address. For
+		 * audio, we use DMA to transfer data between memory and an I/O
+		 * device (the SSI's STX0 or SRX0 register). Snooping is only
+		 * needed if there is a cache, so we need to snoop memory
+		 * addresses only.  For playback, that means we snoop the source
+		 * but not the destination.  For capture, we snoop the
+		 * destination but not the source.
+		 *
+		 * Note that failing to snoop properly is unlikely to cause
+		 * cache incoherency if the period size is larger than the
+		 * size of L1 cache.  This is because filling in one period will
+		 * flush out the data for the previous period.  So if you
+		 * increased period_bytes_min to a large enough size, you might
+		 * get more performance by not snooping, and you'll still be
+		 * okay.  You'll need to update fsl_dma_update_pointers() also.
+		 */
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			link->source_addr = cpu_to_be32(temp_addr);
+			link->source_attr = cpu_to_be32(CCSR_DMA_ATR_SNOOP |
+				upper_32_bits(temp_addr));
+
+			link->dest_addr = cpu_to_be32(ssi_sxx_phys);
+			link->dest_attr = cpu_to_be32(CCSR_DMA_ATR_NOSNOOP |
+				upper_32_bits(ssi_sxx_phys));
+		} else {
+			link->source_addr = cpu_to_be32(ssi_sxx_phys);
+			link->source_attr = cpu_to_be32(CCSR_DMA_ATR_NOSNOOP |
+				upper_32_bits(ssi_sxx_phys));
+
+			link->dest_addr = cpu_to_be32(temp_addr);
+			link->dest_attr = cpu_to_be32(CCSR_DMA_ATR_SNOOP |
+				upper_32_bits(temp_addr));
+		}
+
+		temp_addr += period_size;
+	}
+
+	return 0;
+}
+
+/**
+ * fsl_dma_pointer: determine the current position of the DMA transfer
+ *
+ * This function is called by ALSA when ALSA wants to know where in the
+ * stream buffer the hardware currently is.
+ *
+ * For playback, the SAR register contains the physical address of the most
+ * recent DMA transfer.  For capture, the value is in the DAR register.
+ *
+ * The base address of the buffer is stored in the source_addr field of the
+ * first link descriptor.
+ */
+static snd_pcm_uframes_t fsl_dma_pointer(struct snd_soc_component *component,
+					 struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_dma_private *dma_private = runtime->private_data;
+	struct device *dev = component->dev;
+	struct ccsr_dma_channel __iomem *dma_channel = dma_private->dma_channel;
+	dma_addr_t position;
+	snd_pcm_uframes_t frames;
+
+	/* Obtain the current DMA pointer, but don't read the ESAD bits if we
+	 * only have 32-bit DMA addresses.  This function is typically called
+	 * in interrupt context, so we need to optimize it.
+	 */
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		position = in_be32(&dma_channel->sar);
+#ifdef CONFIG_PHYS_64BIT
+		position |= (u64)(in_be32(&dma_channel->satr) &
+				  CCSR_DMA_ATR_ESAD_MASK) << 32;
+#endif
+	} else {
+		position = in_be32(&dma_channel->dar);
+#ifdef CONFIG_PHYS_64BIT
+		position |= (u64)(in_be32(&dma_channel->datr) &
+				  CCSR_DMA_ATR_ESAD_MASK) << 32;
+#endif
+	}
+
+	/*
+	 * When capture is started, the SSI immediately starts to fill its FIFO.
+	 * This means that the DMA controller is not started until the FIFO is
+	 * full.  However, ALSA calls this function before that happens, when
+	 * MR.DAR is still zero.  In this case, just return zero to indicate
+	 * that nothing has been received yet.
+	 */
+	if (!position)
+		return 0;
+
+	if ((position < dma_private->dma_buf_phys) ||
+	    (position > dma_private->dma_buf_end)) {
+		dev_err(dev, "dma pointer is out of range, halting stream\n");
+		return SNDRV_PCM_POS_XRUN;
+	}
+
+	frames = bytes_to_frames(runtime, position - dma_private->dma_buf_phys);
+
+	/*
+	 * If the current address is just past the end of the buffer, wrap it
+	 * around.
+	 */
+	if (frames == runtime->buffer_size)
+		frames = 0;
+
+	return frames;
+}
+
+/**
+ * fsl_dma_hw_free: release resources allocated in fsl_dma_hw_params()
+ *
+ * Release the resources allocated in fsl_dma_hw_params() and de-program the
+ * registers.
+ *
+ * This function can be called multiple times.
+ */
+static int fsl_dma_hw_free(struct snd_soc_component *component,
+			   struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_dma_private *dma_private = runtime->private_data;
+
+	if (dma_private) {
+		struct ccsr_dma_channel __iomem *dma_channel;
+
+		dma_channel = dma_private->dma_channel;
+
+		/* Stop the DMA */
+		out_be32(&dma_channel->mr, CCSR_DMA_MR_CA);
+		out_be32(&dma_channel->mr, 0);
+
+		/* Reset all the other registers */
+		out_be32(&dma_channel->sr, -1);
+		out_be32(&dma_channel->clndar, 0);
+		out_be32(&dma_channel->eclndar, 0);
+		out_be32(&dma_channel->satr, 0);
+		out_be32(&dma_channel->sar, 0);
+		out_be32(&dma_channel->datr, 0);
+		out_be32(&dma_channel->dar, 0);
+		out_be32(&dma_channel->bcr, 0);
+		out_be32(&dma_channel->nlndar, 0);
+		out_be32(&dma_channel->enlndar, 0);
+	}
+
+	return 0;
+}
+
+/**
+ * fsl_dma_close: close the stream.
+ */
+static int fsl_dma_close(struct snd_soc_component *component,
+			 struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_dma_private *dma_private = runtime->private_data;
+	struct device *dev = component->dev;
+	struct dma_object *dma =
+		container_of(component->driver, struct dma_object, dai);
+
+	if (dma_private) {
+		if (dma_private->irq)
+			free_irq(dma_private->irq, dma_private);
+
+		/* Deallocate the fsl_dma_private structure */
+		dma_free_coherent(dev, sizeof(struct fsl_dma_private),
+				  dma_private, dma_private->ld_buf_phys);
+		substream->runtime->private_data = NULL;
+	}
+
+	dma->assigned = false;
+
+	return 0;
+}
+
+/**
+ * find_ssi_node -- returns the SSI node that points to its DMA channel node
+ *
+ * Although this DMA driver attempts to operate independently of the other
+ * devices, it still needs to determine some information about the SSI device
+ * that it's working with.  Unfortunately, the device tree does not contain
+ * a pointer from the DMA channel node to the SSI node -- the pointer goes the
+ * other way.  So we need to scan the device tree for SSI nodes until we find
+ * the one that points to the given DMA channel node.  It's ugly, but at least
+ * it's contained in this one function.
+ */
+static struct device_node *find_ssi_node(struct device_node *dma_channel_np)
+{
+	struct device_node *ssi_np, *np;
+
+	for_each_compatible_node(ssi_np, NULL, "fsl,mpc8610-ssi") {
+		/* Check each DMA phandle to see if it points to us.  We
+		 * assume that device_node pointers are a valid comparison.
+		 */
+		np = of_parse_phandle(ssi_np, "fsl,playback-dma", 0);
+		of_node_put(np);
+		if (np == dma_channel_np)
+			return ssi_np;
+
+		np = of_parse_phandle(ssi_np, "fsl,capture-dma", 0);
+		of_node_put(np);
+		if (np == dma_channel_np)
+			return ssi_np;
+	}
+
+	return NULL;
+}
+
+static int fsl_soc_dma_probe(struct platform_device *pdev)
+{
+	struct dma_object *dma;
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *ssi_np;
+	struct resource res;
+	const uint32_t *iprop;
+	int ret;
+
+	/* Find the SSI node that points to us. */
+	ssi_np = find_ssi_node(np);
+	if (!ssi_np) {
+		dev_err(&pdev->dev, "cannot find parent SSI node\n");
+		return -ENODEV;
+	}
+
+	ret = of_address_to_resource(ssi_np, 0, &res);
+	if (ret) {
+		dev_err(&pdev->dev, "could not determine resources for %pOF\n",
+			ssi_np);
+		of_node_put(ssi_np);
+		return ret;
+	}
+
+	dma = kzalloc(sizeof(*dma), GFP_KERNEL);
+	if (!dma) {
+		of_node_put(ssi_np);
+		return -ENOMEM;
+	}
+
+	dma->dai.name = DRV_NAME;
+	dma->dai.open = fsl_dma_open;
+	dma->dai.close = fsl_dma_close;
+	dma->dai.hw_params = fsl_dma_hw_params;
+	dma->dai.hw_free = fsl_dma_hw_free;
+	dma->dai.pointer = fsl_dma_pointer;
+	dma->dai.pcm_construct = fsl_dma_new;
+
+	/* Store the SSI-specific information that we need */
+	dma->ssi_stx_phys = res.start + REG_SSI_STX0;
+	dma->ssi_srx_phys = res.start + REG_SSI_SRX0;
+
+	iprop = of_get_property(ssi_np, "fsl,fifo-depth", NULL);
+	if (iprop)
+		dma->ssi_fifo_depth = be32_to_cpup(iprop);
+	else
+                /* Older 8610 DTs didn't have the fifo-depth property */
+		dma->ssi_fifo_depth = 8;
+
+	of_node_put(ssi_np);
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &dma->dai, NULL, 0);
+	if (ret) {
+		dev_err(&pdev->dev, "could not register platform\n");
+		kfree(dma);
+		return ret;
+	}
+
+	dma->channel = of_iomap(np, 0);
+	dma->irq = irq_of_parse_and_map(np, 0);
+
+	dev_set_drvdata(&pdev->dev, dma);
+
+	return 0;
+}
+
+static int fsl_soc_dma_remove(struct platform_device *pdev)
+{
+	struct dma_object *dma = dev_get_drvdata(&pdev->dev);
+
+	iounmap(dma->channel);
+	irq_dispose_mapping(dma->irq);
+	kfree(dma);
+
+	return 0;
+}
+
+static const struct of_device_id fsl_soc_dma_ids[] = {
+	{ .compatible = "fsl,ssi-dma-channel", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_soc_dma_ids);
+
+static struct platform_driver fsl_soc_dma_driver = {
+	.driver = {
+		.name = "fsl-pcm-audio",
+		.of_match_table = fsl_soc_dma_ids,
+	},
+	.probe = fsl_soc_dma_probe,
+	.remove = fsl_soc_dma_remove,
+};
+
+module_platform_driver(fsl_soc_dma_driver);
+
+MODULE_AUTHOR("Timur Tabi <timur@freescale.com>");
+MODULE_DESCRIPTION("Freescale Elo DMA ASoC PCM Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/fsl_dma.h b/sound/soc/fsl/fsl_dma.h
new file mode 100644
index 000000000..f19ae765b
--- /dev/null
+++ b/sound/soc/fsl/fsl_dma.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * mpc8610-pcm.h - ALSA PCM interface for the Freescale MPC8610 SoC
+ */
+
+#ifndef _MPC8610_PCM_H
+#define _MPC8610_PCM_H
+
+struct ccsr_dma {
+	u8 res0[0x100];
+	struct ccsr_dma_channel {
+		__be32 mr;      /* Mode register */
+		__be32 sr;      /* Status register */
+		__be32 eclndar; /* Current link descriptor extended addr reg */
+		__be32 clndar;  /* Current link descriptor address register */
+		__be32 satr;    /* Source attributes register */
+		__be32 sar;     /* Source address register */
+		__be32 datr;    /* Destination attributes register */
+		__be32 dar;     /* Destination address register */
+		__be32 bcr;     /* Byte count register */
+		__be32 enlndar; /* Next link descriptor extended address reg */
+		__be32 nlndar;  /* Next link descriptor address register */
+		u8 res1[4];
+		__be32 eclsdar; /* Current list descriptor extended addr reg */
+		__be32 clsdar;  /* Current list descriptor address register */
+		__be32 enlsdar; /* Next list descriptor extended address reg */
+		__be32 nlsdar;  /* Next list descriptor address register */
+		__be32 ssr;     /* Source stride register */
+		__be32 dsr;     /* Destination stride register */
+		u8 res2[0x38];
+	} channel[4];
+	__be32 dgsr;
+};
+
+#define CCSR_DMA_MR_BWC_DISABLED	0x0F000000
+#define CCSR_DMA_MR_BWC_SHIFT   	24
+#define CCSR_DMA_MR_BWC_MASK    	0x0F000000
+#define CCSR_DMA_MR_BWC(x) \
+	((ilog2(x) << CCSR_DMA_MR_BWC_SHIFT) & CCSR_DMA_MR_BWC_MASK)
+#define CCSR_DMA_MR_EMP_EN      	0x00200000
+#define CCSR_DMA_MR_EMS_EN      	0x00040000
+#define CCSR_DMA_MR_DAHTS_MASK  	0x00030000
+#define CCSR_DMA_MR_DAHTS_1     	0x00000000
+#define CCSR_DMA_MR_DAHTS_2     	0x00010000
+#define CCSR_DMA_MR_DAHTS_4     	0x00020000
+#define CCSR_DMA_MR_DAHTS_8     	0x00030000
+#define CCSR_DMA_MR_SAHTS_MASK  	0x0000C000
+#define CCSR_DMA_MR_SAHTS_1     	0x00000000
+#define CCSR_DMA_MR_SAHTS_2     	0x00004000
+#define CCSR_DMA_MR_SAHTS_4     	0x00008000
+#define CCSR_DMA_MR_SAHTS_8     	0x0000C000
+#define CCSR_DMA_MR_DAHE		0x00002000
+#define CCSR_DMA_MR_SAHE		0x00001000
+#define CCSR_DMA_MR_SRW 		0x00000400
+#define CCSR_DMA_MR_EOSIE       	0x00000200
+#define CCSR_DMA_MR_EOLNIE      	0x00000100
+#define CCSR_DMA_MR_EOLSIE      	0x00000080
+#define CCSR_DMA_MR_EIE 		0x00000040
+#define CCSR_DMA_MR_XFE 		0x00000020
+#define CCSR_DMA_MR_CDSM_SWSM   	0x00000010
+#define CCSR_DMA_MR_CA  		0x00000008
+#define CCSR_DMA_MR_CTM 		0x00000004
+#define CCSR_DMA_MR_CC  		0x00000002
+#define CCSR_DMA_MR_CS  		0x00000001
+
+#define CCSR_DMA_SR_TE  		0x00000080
+#define CCSR_DMA_SR_CH  		0x00000020
+#define CCSR_DMA_SR_PE  		0x00000010
+#define CCSR_DMA_SR_EOLNI       	0x00000008
+#define CCSR_DMA_SR_CB  		0x00000004
+#define CCSR_DMA_SR_EOSI		0x00000002
+#define CCSR_DMA_SR_EOLSI       	0x00000001
+
+/* ECLNDAR takes bits 32-36 of the CLNDAR register */
+static inline u32 CCSR_DMA_ECLNDAR_ADDR(u64 x)
+{
+	return (x >> 32) & 0xf;
+}
+
+#define CCSR_DMA_CLNDAR_ADDR(x) ((x) & 0xFFFFFFFE)
+#define CCSR_DMA_CLNDAR_EOSIE   	0x00000008
+
+/* SATR and DATR, combined */
+#define CCSR_DMA_ATR_PBATMU     	0x20000000
+#define CCSR_DMA_ATR_TFLOWLVL_0 	0x00000000
+#define CCSR_DMA_ATR_TFLOWLVL_1 	0x06000000
+#define CCSR_DMA_ATR_TFLOWLVL_2 	0x08000000
+#define CCSR_DMA_ATR_TFLOWLVL_3 	0x0C000000
+#define CCSR_DMA_ATR_PCIORDER   	0x02000000
+#define CCSR_DMA_ATR_SME		0x01000000
+#define CCSR_DMA_ATR_NOSNOOP    	0x00040000
+#define CCSR_DMA_ATR_SNOOP      	0x00050000
+#define CCSR_DMA_ATR_ESAD_MASK  	0x0000000F
+
+/**
+ *  List Descriptor for extended chaining mode DMA operations.
+ *
+ *  The CLSDAR register points to the first (in a linked-list) List
+ *  Descriptor.  Each object must be aligned on a 32-byte boundary. Each
+ *  list descriptor points to a linked-list of link Descriptors.
+ */
+struct fsl_dma_list_descriptor {
+	__be64 next;    	/* Address of next list descriptor */
+	__be64 first_link;      /* Address of first link descriptor */
+	__be32 source;  	/* Source stride */
+	__be32 dest;    	/* Destination stride */
+	u8 res[8];      	/* Reserved */
+} __attribute__ ((aligned(32), packed));
+
+/**
+ *  Link Descriptor for basic and extended chaining mode DMA operations.
+ *
+ *  A Link Descriptor points to a single DMA buffer.  Each link descriptor
+ *  must be aligned on a 32-byte boundary.
+ */
+struct fsl_dma_link_descriptor {
+	__be32 source_attr;     /* Programmed into SATR register */
+	__be32 source_addr;     /* Programmed into SAR register */
+	__be32 dest_attr;       /* Programmed into DATR register */
+	__be32 dest_addr;       /* Programmed into DAR register */
+	__be64 next;    /* Address of next link descriptor */
+	__be32 count;   /* Byte count */
+	u8 res[4];      /* Reserved */
+} __attribute__ ((aligned(32), packed));
+
+#endif
diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c
new file mode 100644
index 000000000..84e6f9eb7
--- /dev/null
+++ b/sound/soc/fsl/fsl_easrc.c
@@ -0,0 +1,2110 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright 2019 NXP
+
+#include <linux/atomic.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include <linux/kobject.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/miscdevice.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/sched/signal.h>
+#include <linux/sysfs.h>
+#include <linux/types.h>
+#include <linux/gcd.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include <sound/core.h>
+
+#include "fsl_easrc.h"
+#include "imx-pcm.h"
+
+#define FSL_EASRC_FORMATS       (SNDRV_PCM_FMTBIT_S16_LE | \
+				 SNDRV_PCM_FMTBIT_U16_LE | \
+				 SNDRV_PCM_FMTBIT_S24_LE | \
+				 SNDRV_PCM_FMTBIT_S24_3LE | \
+				 SNDRV_PCM_FMTBIT_U24_LE | \
+				 SNDRV_PCM_FMTBIT_U24_3LE | \
+				 SNDRV_PCM_FMTBIT_S32_LE | \
+				 SNDRV_PCM_FMTBIT_U32_LE | \
+				 SNDRV_PCM_FMTBIT_S20_3LE | \
+				 SNDRV_PCM_FMTBIT_U20_3LE | \
+				 SNDRV_PCM_FMTBIT_FLOAT_LE)
+
+static int fsl_easrc_iec958_put_bits(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
+	struct fsl_asrc *easrc = snd_soc_component_get_drvdata(comp);
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	struct soc_mreg_control *mc =
+		(struct soc_mreg_control *)kcontrol->private_value;
+	unsigned int regval = ucontrol->value.integer.value[0];
+
+	easrc_priv->bps_iec958[mc->regbase] = regval;
+
+	return 0;
+}
+
+static int fsl_easrc_iec958_get_bits(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *comp = snd_kcontrol_chip(kcontrol);
+	struct fsl_asrc *easrc = snd_soc_component_get_drvdata(comp);
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	struct soc_mreg_control *mc =
+		(struct soc_mreg_control *)kcontrol->private_value;
+
+	ucontrol->value.enumerated.item[0] = easrc_priv->bps_iec958[mc->regbase];
+
+	return 0;
+}
+
+static int fsl_easrc_get_reg(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mreg_control *mc =
+		(struct soc_mreg_control *)kcontrol->private_value;
+	unsigned int regval;
+
+	regval = snd_soc_component_read(component, mc->regbase);
+
+	ucontrol->value.integer.value[0] = regval;
+
+	return 0;
+}
+
+static int fsl_easrc_set_reg(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct soc_mreg_control *mc =
+		(struct soc_mreg_control *)kcontrol->private_value;
+	unsigned int regval = ucontrol->value.integer.value[0];
+	int ret;
+
+	ret = snd_soc_component_write(component, mc->regbase, regval);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+#define SOC_SINGLE_REG_RW(xname, xreg) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = (xname), \
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
+	.info = snd_soc_info_xr_sx, .get = fsl_easrc_get_reg, \
+	.put = fsl_easrc_set_reg, \
+	.private_value = (unsigned long)&(struct soc_mreg_control) \
+		{ .regbase = xreg, .regcount = 1, .nbits = 32, \
+		  .invert = 0, .min = 0, .max = 0xffffffff, } }
+
+#define SOC_SINGLE_VAL_RW(xname, xreg) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_PCM, .name = (xname), \
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
+	.info = snd_soc_info_xr_sx, .get = fsl_easrc_iec958_get_bits, \
+	.put = fsl_easrc_iec958_put_bits, \
+	.private_value = (unsigned long)&(struct soc_mreg_control) \
+		{ .regbase = xreg, .regcount = 1, .nbits = 32, \
+		  .invert = 0, .min = 0, .max = 2, } }
+
+static const struct snd_kcontrol_new fsl_easrc_snd_controls[] = {
+	SOC_SINGLE("Context 0 Dither Switch", REG_EASRC_COC(0), 0, 1, 0),
+	SOC_SINGLE("Context 1 Dither Switch", REG_EASRC_COC(1), 0, 1, 0),
+	SOC_SINGLE("Context 2 Dither Switch", REG_EASRC_COC(2), 0, 1, 0),
+	SOC_SINGLE("Context 3 Dither Switch", REG_EASRC_COC(3), 0, 1, 0),
+
+	SOC_SINGLE("Context 0 IEC958 Validity", REG_EASRC_COC(0), 2, 1, 0),
+	SOC_SINGLE("Context 1 IEC958 Validity", REG_EASRC_COC(1), 2, 1, 0),
+	SOC_SINGLE("Context 2 IEC958 Validity", REG_EASRC_COC(2), 2, 1, 0),
+	SOC_SINGLE("Context 3 IEC958 Validity", REG_EASRC_COC(3), 2, 1, 0),
+
+	SOC_SINGLE_VAL_RW("Context 0 IEC958 Bits Per Sample", 0),
+	SOC_SINGLE_VAL_RW("Context 1 IEC958 Bits Per Sample", 1),
+	SOC_SINGLE_VAL_RW("Context 2 IEC958 Bits Per Sample", 2),
+	SOC_SINGLE_VAL_RW("Context 3 IEC958 Bits Per Sample", 3),
+
+	SOC_SINGLE_REG_RW("Context 0 IEC958 CS0", REG_EASRC_CS0(0)),
+	SOC_SINGLE_REG_RW("Context 1 IEC958 CS0", REG_EASRC_CS0(1)),
+	SOC_SINGLE_REG_RW("Context 2 IEC958 CS0", REG_EASRC_CS0(2)),
+	SOC_SINGLE_REG_RW("Context 3 IEC958 CS0", REG_EASRC_CS0(3)),
+	SOC_SINGLE_REG_RW("Context 0 IEC958 CS1", REG_EASRC_CS1(0)),
+	SOC_SINGLE_REG_RW("Context 1 IEC958 CS1", REG_EASRC_CS1(1)),
+	SOC_SINGLE_REG_RW("Context 2 IEC958 CS1", REG_EASRC_CS1(2)),
+	SOC_SINGLE_REG_RW("Context 3 IEC958 CS1", REG_EASRC_CS1(3)),
+	SOC_SINGLE_REG_RW("Context 0 IEC958 CS2", REG_EASRC_CS2(0)),
+	SOC_SINGLE_REG_RW("Context 1 IEC958 CS2", REG_EASRC_CS2(1)),
+	SOC_SINGLE_REG_RW("Context 2 IEC958 CS2", REG_EASRC_CS2(2)),
+	SOC_SINGLE_REG_RW("Context 3 IEC958 CS2", REG_EASRC_CS2(3)),
+	SOC_SINGLE_REG_RW("Context 0 IEC958 CS3", REG_EASRC_CS3(0)),
+	SOC_SINGLE_REG_RW("Context 1 IEC958 CS3", REG_EASRC_CS3(1)),
+	SOC_SINGLE_REG_RW("Context 2 IEC958 CS3", REG_EASRC_CS3(2)),
+	SOC_SINGLE_REG_RW("Context 3 IEC958 CS3", REG_EASRC_CS3(3)),
+	SOC_SINGLE_REG_RW("Context 0 IEC958 CS4", REG_EASRC_CS4(0)),
+	SOC_SINGLE_REG_RW("Context 1 IEC958 CS4", REG_EASRC_CS4(1)),
+	SOC_SINGLE_REG_RW("Context 2 IEC958 CS4", REG_EASRC_CS4(2)),
+	SOC_SINGLE_REG_RW("Context 3 IEC958 CS4", REG_EASRC_CS4(3)),
+	SOC_SINGLE_REG_RW("Context 0 IEC958 CS5", REG_EASRC_CS5(0)),
+	SOC_SINGLE_REG_RW("Context 1 IEC958 CS5", REG_EASRC_CS5(1)),
+	SOC_SINGLE_REG_RW("Context 2 IEC958 CS5", REG_EASRC_CS5(2)),
+	SOC_SINGLE_REG_RW("Context 3 IEC958 CS5", REG_EASRC_CS5(3)),
+};
+
+/*
+ * fsl_easrc_set_rs_ratio
+ *
+ * According to the resample taps, calculate the resample ratio
+ * ratio = in_rate / out_rate
+ */
+static int fsl_easrc_set_rs_ratio(struct fsl_asrc_pair *ctx)
+{
+	struct fsl_asrc *easrc = ctx->asrc;
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	struct fsl_easrc_ctx_priv *ctx_priv = ctx->private;
+	unsigned int in_rate = ctx_priv->in_params.norm_rate;
+	unsigned int out_rate = ctx_priv->out_params.norm_rate;
+	unsigned int frac_bits;
+	u64 val;
+	u32 *r;
+
+	switch (easrc_priv->rs_num_taps) {
+	case EASRC_RS_32_TAPS:
+		/* integer bits = 5; */
+		frac_bits = 39;
+		break;
+	case EASRC_RS_64_TAPS:
+		/* integer bits = 6; */
+		frac_bits = 38;
+		break;
+	case EASRC_RS_128_TAPS:
+		/* integer bits = 7; */
+		frac_bits = 37;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	val = (u64)in_rate << frac_bits;
+	do_div(val, out_rate);
+	r = (uint32_t *)&val;
+
+	if (r[1] & 0xFFFFF000) {
+		dev_err(&easrc->pdev->dev, "ratio exceed range\n");
+		return -EINVAL;
+	}
+
+	regmap_write(easrc->regmap, REG_EASRC_RRL(ctx->index),
+		     EASRC_RRL_RS_RL(r[0]));
+	regmap_write(easrc->regmap, REG_EASRC_RRH(ctx->index),
+		     EASRC_RRH_RS_RH(r[1]));
+
+	return 0;
+}
+
+/* Normalize input and output sample rates */
+static void fsl_easrc_normalize_rates(struct fsl_asrc_pair *ctx)
+{
+	struct fsl_easrc_ctx_priv *ctx_priv;
+	int a, b;
+
+	if (!ctx)
+		return;
+
+	ctx_priv = ctx->private;
+
+	a = ctx_priv->in_params.sample_rate;
+	b = ctx_priv->out_params.sample_rate;
+
+	a = gcd(a, b);
+
+	/* Divide by gcd to normalize the rate */
+	ctx_priv->in_params.norm_rate = ctx_priv->in_params.sample_rate / a;
+	ctx_priv->out_params.norm_rate = ctx_priv->out_params.sample_rate / a;
+}
+
+/* Resets the pointer of the coeff memory pointers */
+static int fsl_easrc_coeff_mem_ptr_reset(struct fsl_asrc *easrc,
+					 unsigned int ctx_id, int mem_type)
+{
+	struct device *dev;
+	u32 reg, mask, val;
+
+	if (!easrc)
+		return -ENODEV;
+
+	dev = &easrc->pdev->dev;
+
+	switch (mem_type) {
+	case EASRC_PF_COEFF_MEM:
+		/* This resets the prefilter memory pointer addr */
+		if (ctx_id >= EASRC_CTX_MAX_NUM) {
+			dev_err(dev, "Invalid context id[%d]\n", ctx_id);
+			return -EINVAL;
+		}
+
+		reg = REG_EASRC_CCE1(ctx_id);
+		mask = EASRC_CCE1_COEF_MEM_RST_MASK;
+		val = EASRC_CCE1_COEF_MEM_RST;
+		break;
+	case EASRC_RS_COEFF_MEM:
+		/* This resets the resampling memory pointer addr */
+		reg = REG_EASRC_CRCC;
+		mask = EASRC_CRCC_RS_CPR_MASK;
+		val = EASRC_CRCC_RS_CPR;
+		break;
+	default:
+		dev_err(dev, "Unknown memory type\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * To reset the write pointer back to zero, the register field
+	 * ASRC_CTX_CTRL_EXT1x[PF_COEFF_MEM_RST] can be toggled from
+	 * 0x0 to 0x1 to 0x0.
+	 */
+	regmap_update_bits(easrc->regmap, reg, mask, 0);
+	regmap_update_bits(easrc->regmap, reg, mask, val);
+	regmap_update_bits(easrc->regmap, reg, mask, 0);
+
+	return 0;
+}
+
+static inline uint32_t bits_taps_to_val(unsigned int t)
+{
+	switch (t) {
+	case EASRC_RS_32_TAPS:
+		return 32;
+	case EASRC_RS_64_TAPS:
+		return 64;
+	case EASRC_RS_128_TAPS:
+		return 128;
+	}
+
+	return 0;
+}
+
+static int fsl_easrc_resampler_config(struct fsl_asrc *easrc)
+{
+	struct device *dev = &easrc->pdev->dev;
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	struct asrc_firmware_hdr *hdr =  easrc_priv->firmware_hdr;
+	struct interp_params *interp = easrc_priv->interp;
+	struct interp_params *selected_interp = NULL;
+	unsigned int num_coeff;
+	unsigned int i;
+	u64 *coef;
+	u32 *r;
+	int ret;
+
+	if (!hdr) {
+		dev_err(dev, "firmware not loaded!\n");
+		return -ENODEV;
+	}
+
+	for (i = 0; i < hdr->interp_scen; i++) {
+		if ((interp[i].num_taps - 1) !=
+		    bits_taps_to_val(easrc_priv->rs_num_taps))
+			continue;
+
+		coef = interp[i].coeff;
+		selected_interp = &interp[i];
+		dev_dbg(dev, "Selected interp_filter: %u taps - %u phases\n",
+			selected_interp->num_taps,
+			selected_interp->num_phases);
+		break;
+	}
+
+	if (!selected_interp) {
+		dev_err(dev, "failed to get interpreter configuration\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * RS_LOW - first half of center tap of the sinc function
+	 * RS_HIGH - second half of center tap of the sinc function
+	 * This is due to the fact the resampling function must be
+	 * symetrical - i.e. odd number of taps
+	 */
+	r = (uint32_t *)&selected_interp->center_tap;
+	regmap_write(easrc->regmap, REG_EASRC_RCTCL, EASRC_RCTCL_RS_CL(r[0]));
+	regmap_write(easrc->regmap, REG_EASRC_RCTCH, EASRC_RCTCH_RS_CH(r[1]));
+
+	/*
+	 * Write Number of Resampling Coefficient Taps
+	 * 00b - 32-Tap Resampling Filter
+	 * 01b - 64-Tap Resampling Filter
+	 * 10b - 128-Tap Resampling Filter
+	 * 11b - N/A
+	 */
+	regmap_update_bits(easrc->regmap, REG_EASRC_CRCC,
+			   EASRC_CRCC_RS_TAPS_MASK,
+			   EASRC_CRCC_RS_TAPS(easrc_priv->rs_num_taps));
+
+	/* Reset prefilter coefficient pointer back to 0 */
+	ret = fsl_easrc_coeff_mem_ptr_reset(easrc, 0, EASRC_RS_COEFF_MEM);
+	if (ret)
+		return ret;
+
+	/*
+	 * When the filter is programmed to run in:
+	 * 32-tap mode, 16-taps, 128-phases 4-coefficients per phase
+	 * 64-tap mode, 32-taps, 64-phases 4-coefficients per phase
+	 * 128-tap mode, 64-taps, 32-phases 4-coefficients per phase
+	 * This means the number of writes is constant no matter
+	 * the mode we are using
+	 */
+	num_coeff = 16 * 128 * 4;
+
+	for (i = 0; i < num_coeff; i++) {
+		r = (uint32_t *)&coef[i];
+		regmap_write(easrc->regmap, REG_EASRC_CRCM,
+			     EASRC_CRCM_RS_CWD(r[0]));
+		regmap_write(easrc->regmap, REG_EASRC_CRCM,
+			     EASRC_CRCM_RS_CWD(r[1]));
+	}
+
+	return 0;
+}
+
+/**
+ *  fsl_easrc_normalize_filter - Scale filter coefficients (64 bits float)
+ *  For input float32 normalized range (1.0,-1.0) -> output int[16,24,32]:
+ *      scale it by multiplying filter coefficients by 2^31
+ *  For input int[16, 24, 32] -> output float32
+ *      scale it by multiplying filter coefficients by 2^-15, 2^-23, 2^-31
+ *  input:
+ *      @easrc:  Structure pointer of fsl_asrc
+ *      @infilter : Pointer to non-scaled input filter
+ *      @shift:  The multiply factor
+ *  output:
+ *      @outfilter: scaled filter
+ */
+static int fsl_easrc_normalize_filter(struct fsl_asrc *easrc,
+				      u64 *infilter,
+				      u64 *outfilter,
+				      int shift)
+{
+	struct device *dev = &easrc->pdev->dev;
+	u64 coef = *infilter;
+	s64 exp  = (coef & 0x7ff0000000000000ll) >> 52;
+	u64 outcoef;
+
+	/*
+	 * If exponent is zero (value == 0), or 7ff (value == NaNs)
+	 * dont touch the content
+	 */
+	if (exp == 0 || exp == 0x7ff) {
+		*outfilter = coef;
+		return 0;
+	}
+
+	/* coef * 2^shift ==> exp + shift */
+	exp += shift;
+
+	if ((shift > 0 && exp >= 0x7ff) || (shift < 0 && exp <= 0)) {
+		dev_err(dev, "coef out of range\n");
+		return -EINVAL;
+	}
+
+	outcoef = (u64)(coef & 0x800FFFFFFFFFFFFFll) + ((u64)exp << 52);
+	*outfilter = outcoef;
+
+	return 0;
+}
+
+static int fsl_easrc_write_pf_coeff_mem(struct fsl_asrc *easrc, int ctx_id,
+					u64 *coef, int n_taps, int shift)
+{
+	struct device *dev = &easrc->pdev->dev;
+	int ret = 0;
+	int i;
+	u32 *r;
+	u64 tmp;
+
+	/* If STx_NUM_TAPS is set to 0x0 then return */
+	if (!n_taps)
+		return 0;
+
+	if (!coef) {
+		dev_err(dev, "coef table is NULL\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * When switching between stages, the address pointer
+	 * should be reset back to 0x0 before performing a write
+	 */
+	ret = fsl_easrc_coeff_mem_ptr_reset(easrc, ctx_id, EASRC_PF_COEFF_MEM);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < (n_taps + 1) / 2; i++) {
+		ret = fsl_easrc_normalize_filter(easrc, &coef[i], &tmp, shift);
+		if (ret)
+			return ret;
+
+		r = (uint32_t *)&tmp;
+		regmap_write(easrc->regmap, REG_EASRC_PCF(ctx_id),
+			     EASRC_PCF_CD(r[0]));
+		regmap_write(easrc->regmap, REG_EASRC_PCF(ctx_id),
+			     EASRC_PCF_CD(r[1]));
+	}
+
+	return 0;
+}
+
+static int fsl_easrc_prefilter_config(struct fsl_asrc *easrc,
+				      unsigned int ctx_id)
+{
+	struct prefil_params *prefil, *selected_prefil = NULL;
+	struct fsl_easrc_ctx_priv *ctx_priv;
+	struct fsl_easrc_priv *easrc_priv;
+	struct asrc_firmware_hdr *hdr;
+	struct fsl_asrc_pair *ctx;
+	struct device *dev;
+	u32 inrate, outrate, offset = 0;
+	u32 in_s_rate, out_s_rate;
+	snd_pcm_format_t in_s_fmt, out_s_fmt;
+	int ret, i;
+
+	if (!easrc)
+		return -ENODEV;
+
+	dev = &easrc->pdev->dev;
+
+	if (ctx_id >= EASRC_CTX_MAX_NUM) {
+		dev_err(dev, "Invalid context id[%d]\n", ctx_id);
+		return -EINVAL;
+	}
+
+	easrc_priv = easrc->private;
+
+	ctx = easrc->pair[ctx_id];
+	ctx_priv = ctx->private;
+
+	in_s_rate = ctx_priv->in_params.sample_rate;
+	out_s_rate = ctx_priv->out_params.sample_rate;
+	in_s_fmt = ctx_priv->in_params.sample_format;
+	out_s_fmt = ctx_priv->out_params.sample_format;
+
+	ctx_priv->in_filled_sample = bits_taps_to_val(easrc_priv->rs_num_taps) / 2;
+	ctx_priv->out_missed_sample = ctx_priv->in_filled_sample * out_s_rate / in_s_rate;
+
+	ctx_priv->st1_num_taps = 0;
+	ctx_priv->st2_num_taps = 0;
+
+	regmap_write(easrc->regmap, REG_EASRC_CCE1(ctx_id), 0);
+	regmap_write(easrc->regmap, REG_EASRC_CCE2(ctx_id), 0);
+
+	/*
+	 * The audio float point data range is (-1, 1), the asrc would output
+	 * all zero for float point input and integer output case, that is to
+	 * drop the fractional part of the data directly.
+	 *
+	 * In order to support float to int conversion or int to float
+	 * conversion we need to do special operation on the coefficient to
+	 * enlarge/reduce the data to the expected range.
+	 *
+	 * For float to int case:
+	 * Up sampling:
+	 * 1. Create a 1 tap filter with center tap (only tap) of 2^31
+	 *    in 64 bits floating point.
+	 *    double value = (double)(((uint64_t)1) << 31)
+	 * 2. Program 1 tap prefilter with center tap above.
+	 *
+	 * Down sampling,
+	 * 1. If the filter is single stage filter, add "shift" to the exponent
+	 *    of stage 1 coefficients.
+	 * 2. If the filter is two stage filter , add "shift" to the exponent
+	 *    of stage 2 coefficients.
+	 *
+	 * The "shift" is 31, same for int16, int24, int32 case.
+	 *
+	 * For int to float case:
+	 * Up sampling:
+	 * 1. Create a 1 tap filter with center tap (only tap) of 2^-31
+	 *    in 64 bits floating point.
+	 * 2. Program 1 tap prefilter with center tap above.
+	 *
+	 * Down sampling,
+	 * 1. If the filter is single stage filter, subtract "shift" to the
+	 *    exponent of stage 1 coefficients.
+	 * 2. If the filter is two stage filter , subtract "shift" to the
+	 *    exponent of stage 2 coefficients.
+	 *
+	 * The "shift" is 15,23,31, different for int16, int24, int32 case.
+	 *
+	 */
+	if (out_s_rate >= in_s_rate) {
+		if (out_s_rate == in_s_rate)
+			regmap_update_bits(easrc->regmap,
+					   REG_EASRC_CCE1(ctx_id),
+					   EASRC_CCE1_RS_BYPASS_MASK,
+					   EASRC_CCE1_RS_BYPASS);
+
+		ctx_priv->st1_num_taps = 1;
+		ctx_priv->st1_coeff    = &easrc_priv->const_coeff;
+		ctx_priv->st1_num_exp  = 1;
+		ctx_priv->st2_num_taps = 0;
+
+		if (in_s_fmt == SNDRV_PCM_FORMAT_FLOAT_LE &&
+		    out_s_fmt != SNDRV_PCM_FORMAT_FLOAT_LE)
+			ctx_priv->st1_addexp = 31;
+		else if (in_s_fmt != SNDRV_PCM_FORMAT_FLOAT_LE &&
+			 out_s_fmt == SNDRV_PCM_FORMAT_FLOAT_LE)
+			ctx_priv->st1_addexp -= ctx_priv->in_params.fmt.addexp;
+	} else {
+		inrate = ctx_priv->in_params.norm_rate;
+		outrate = ctx_priv->out_params.norm_rate;
+
+		hdr = easrc_priv->firmware_hdr;
+		prefil = easrc_priv->prefil;
+
+		for (i = 0; i < hdr->prefil_scen; i++) {
+			if (inrate == prefil[i].insr &&
+			    outrate == prefil[i].outsr) {
+				selected_prefil = &prefil[i];
+				dev_dbg(dev, "Selected prefilter: %u insr, %u outsr, %u st1_taps, %u st2_taps\n",
+					selected_prefil->insr,
+					selected_prefil->outsr,
+					selected_prefil->st1_taps,
+					selected_prefil->st2_taps);
+				break;
+			}
+		}
+
+		if (!selected_prefil) {
+			dev_err(dev, "Conversion from in ratio %u(%u) to out ratio %u(%u) is not supported\n",
+				in_s_rate, inrate,
+				out_s_rate, outrate);
+			return -EINVAL;
+		}
+
+		/*
+		 * In prefilter coeff array, first st1_num_taps represent the
+		 * stage1 prefilter coefficients followed by next st2_num_taps
+		 * representing stage 2 coefficients
+		 */
+		ctx_priv->st1_num_taps = selected_prefil->st1_taps;
+		ctx_priv->st1_coeff    = selected_prefil->coeff;
+		ctx_priv->st1_num_exp  = selected_prefil->st1_exp;
+
+		offset = ((selected_prefil->st1_taps + 1) / 2);
+		ctx_priv->st2_num_taps = selected_prefil->st2_taps;
+		ctx_priv->st2_coeff    = selected_prefil->coeff + offset;
+
+		if (in_s_fmt == SNDRV_PCM_FORMAT_FLOAT_LE &&
+		    out_s_fmt != SNDRV_PCM_FORMAT_FLOAT_LE) {
+			/* only change stage2 coefficient for 2 stage case */
+			if (ctx_priv->st2_num_taps > 0)
+				ctx_priv->st2_addexp = 31;
+			else
+				ctx_priv->st1_addexp = 31;
+		} else if (in_s_fmt != SNDRV_PCM_FORMAT_FLOAT_LE &&
+			   out_s_fmt == SNDRV_PCM_FORMAT_FLOAT_LE) {
+			if (ctx_priv->st2_num_taps > 0)
+				ctx_priv->st2_addexp -= ctx_priv->in_params.fmt.addexp;
+			else
+				ctx_priv->st1_addexp -= ctx_priv->in_params.fmt.addexp;
+		}
+	}
+
+	ctx_priv->in_filled_sample += (ctx_priv->st1_num_taps / 2) * ctx_priv->st1_num_exp +
+				  ctx_priv->st2_num_taps / 2;
+	ctx_priv->out_missed_sample = ctx_priv->in_filled_sample * out_s_rate / in_s_rate;
+
+	if (ctx_priv->in_filled_sample * out_s_rate % in_s_rate != 0)
+		ctx_priv->out_missed_sample += 1;
+	/*
+	 * To modify the value of a prefilter coefficient, the user must
+	 * perform a write to the register ASRC_PRE_COEFF_FIFOn[COEFF_DATA]
+	 * while the respective context RUN_EN bit is set to 0b0
+	 */
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx_id),
+			   EASRC_CC_EN_MASK, 0);
+
+	if (ctx_priv->st1_num_taps > EASRC_MAX_PF_TAPS) {
+		dev_err(dev, "ST1 taps [%d] mus be lower than %d\n",
+			ctx_priv->st1_num_taps, EASRC_MAX_PF_TAPS);
+		ret = -EINVAL;
+		goto ctx_error;
+	}
+
+	/* Update ctx ST1_NUM_TAPS in Context Control Extended 2 register */
+	regmap_update_bits(easrc->regmap, REG_EASRC_CCE2(ctx_id),
+			   EASRC_CCE2_ST1_TAPS_MASK,
+			   EASRC_CCE2_ST1_TAPS(ctx_priv->st1_num_taps - 1));
+
+	/* Prefilter Coefficient Write Select to write in ST1 coeff */
+	regmap_update_bits(easrc->regmap, REG_EASRC_CCE1(ctx_id),
+			   EASRC_CCE1_COEF_WS_MASK,
+			   EASRC_PF_ST1_COEFF_WR << EASRC_CCE1_COEF_WS_SHIFT);
+
+	ret = fsl_easrc_write_pf_coeff_mem(easrc, ctx_id,
+					   ctx_priv->st1_coeff,
+					   ctx_priv->st1_num_taps,
+					   ctx_priv->st1_addexp);
+	if (ret)
+		goto ctx_error;
+
+	if (ctx_priv->st2_num_taps > 0) {
+		if (ctx_priv->st2_num_taps + ctx_priv->st1_num_taps > EASRC_MAX_PF_TAPS) {
+			dev_err(dev, "ST2 taps [%d] mus be lower than %d\n",
+				ctx_priv->st2_num_taps, EASRC_MAX_PF_TAPS);
+			ret = -EINVAL;
+			goto ctx_error;
+		}
+
+		regmap_update_bits(easrc->regmap, REG_EASRC_CCE1(ctx_id),
+				   EASRC_CCE1_PF_TSEN_MASK,
+				   EASRC_CCE1_PF_TSEN);
+		/*
+		 * Enable prefilter stage1 writeback floating point
+		 * which is used for FLOAT_LE case
+		 */
+		regmap_update_bits(easrc->regmap, REG_EASRC_CCE1(ctx_id),
+				   EASRC_CCE1_PF_ST1_WBFP_MASK,
+				   EASRC_CCE1_PF_ST1_WBFP);
+
+		regmap_update_bits(easrc->regmap, REG_EASRC_CCE1(ctx_id),
+				   EASRC_CCE1_PF_EXP_MASK,
+				   EASRC_CCE1_PF_EXP(ctx_priv->st1_num_exp - 1));
+
+		/* Update ctx ST2_NUM_TAPS in Context Control Extended 2 reg */
+		regmap_update_bits(easrc->regmap, REG_EASRC_CCE2(ctx_id),
+				   EASRC_CCE2_ST2_TAPS_MASK,
+				   EASRC_CCE2_ST2_TAPS(ctx_priv->st2_num_taps - 1));
+
+		/* Prefilter Coefficient Write Select to write in ST2 coeff */
+		regmap_update_bits(easrc->regmap, REG_EASRC_CCE1(ctx_id),
+				   EASRC_CCE1_COEF_WS_MASK,
+				   EASRC_PF_ST2_COEFF_WR << EASRC_CCE1_COEF_WS_SHIFT);
+
+		ret = fsl_easrc_write_pf_coeff_mem(easrc, ctx_id,
+						   ctx_priv->st2_coeff,
+						   ctx_priv->st2_num_taps,
+						   ctx_priv->st2_addexp);
+		if (ret)
+			goto ctx_error;
+	}
+
+	return 0;
+
+ctx_error:
+	return ret;
+}
+
+static int fsl_easrc_max_ch_for_slot(struct fsl_asrc_pair *ctx,
+				     struct fsl_easrc_slot *slot)
+{
+	struct fsl_easrc_ctx_priv *ctx_priv = ctx->private;
+	int st1_mem_alloc = 0, st2_mem_alloc = 0;
+	int pf_mem_alloc = 0;
+	int max_channels = 8 - slot->num_channel;
+	int channels = 0;
+
+	if (ctx_priv->st1_num_taps > 0) {
+		if (ctx_priv->st2_num_taps > 0)
+			st1_mem_alloc =
+				(ctx_priv->st1_num_taps - 1) * ctx_priv->st1_num_exp + 1;
+		else
+			st1_mem_alloc = ctx_priv->st1_num_taps;
+	}
+
+	if (ctx_priv->st2_num_taps > 0)
+		st2_mem_alloc = ctx_priv->st2_num_taps;
+
+	pf_mem_alloc = st1_mem_alloc + st2_mem_alloc;
+
+	if (pf_mem_alloc != 0)
+		channels = (6144 - slot->pf_mem_used) / pf_mem_alloc;
+	else
+		channels = 8;
+
+	if (channels < max_channels)
+		max_channels = channels;
+
+	return max_channels;
+}
+
+static int fsl_easrc_config_one_slot(struct fsl_asrc_pair *ctx,
+				     struct fsl_easrc_slot *slot,
+				     unsigned int slot_ctx_idx,
+				     unsigned int *req_channels,
+				     unsigned int *start_channel,
+				     unsigned int *avail_channel)
+{
+	struct fsl_asrc *easrc = ctx->asrc;
+	struct fsl_easrc_ctx_priv *ctx_priv = ctx->private;
+	int st1_chanxexp, st1_mem_alloc = 0, st2_mem_alloc;
+	unsigned int reg0, reg1, reg2, reg3;
+	unsigned int addr;
+
+	if (slot->slot_index == 0) {
+		reg0 = REG_EASRC_DPCS0R0(slot_ctx_idx);
+		reg1 = REG_EASRC_DPCS0R1(slot_ctx_idx);
+		reg2 = REG_EASRC_DPCS0R2(slot_ctx_idx);
+		reg3 = REG_EASRC_DPCS0R3(slot_ctx_idx);
+	} else {
+		reg0 = REG_EASRC_DPCS1R0(slot_ctx_idx);
+		reg1 = REG_EASRC_DPCS1R1(slot_ctx_idx);
+		reg2 = REG_EASRC_DPCS1R2(slot_ctx_idx);
+		reg3 = REG_EASRC_DPCS1R3(slot_ctx_idx);
+	}
+
+	if (*req_channels <= *avail_channel) {
+		slot->num_channel = *req_channels;
+		*req_channels = 0;
+	} else {
+		slot->num_channel = *avail_channel;
+		*req_channels -= *avail_channel;
+	}
+
+	slot->min_channel = *start_channel;
+	slot->max_channel = *start_channel + slot->num_channel - 1;
+	slot->ctx_index = ctx->index;
+	slot->busy = true;
+	*start_channel += slot->num_channel;
+
+	regmap_update_bits(easrc->regmap, reg0,
+			   EASRC_DPCS0R0_MAXCH_MASK,
+			   EASRC_DPCS0R0_MAXCH(slot->max_channel));
+
+	regmap_update_bits(easrc->regmap, reg0,
+			   EASRC_DPCS0R0_MINCH_MASK,
+			   EASRC_DPCS0R0_MINCH(slot->min_channel));
+
+	regmap_update_bits(easrc->regmap, reg0,
+			   EASRC_DPCS0R0_NUMCH_MASK,
+			   EASRC_DPCS0R0_NUMCH(slot->num_channel - 1));
+
+	regmap_update_bits(easrc->regmap, reg0,
+			   EASRC_DPCS0R0_CTXNUM_MASK,
+			   EASRC_DPCS0R0_CTXNUM(slot->ctx_index));
+
+	if (ctx_priv->st1_num_taps > 0) {
+		if (ctx_priv->st2_num_taps > 0)
+			st1_mem_alloc =
+				(ctx_priv->st1_num_taps - 1) * slot->num_channel *
+				ctx_priv->st1_num_exp + slot->num_channel;
+		else
+			st1_mem_alloc = ctx_priv->st1_num_taps * slot->num_channel;
+
+		slot->pf_mem_used = st1_mem_alloc;
+		regmap_update_bits(easrc->regmap, reg2,
+				   EASRC_DPCS0R2_ST1_MA_MASK,
+				   EASRC_DPCS0R2_ST1_MA(st1_mem_alloc));
+
+		if (slot->slot_index == 1)
+			addr = PREFILTER_MEM_LEN - st1_mem_alloc;
+		else
+			addr = 0;
+
+		regmap_update_bits(easrc->regmap, reg2,
+				   EASRC_DPCS0R2_ST1_SA_MASK,
+				   EASRC_DPCS0R2_ST1_SA(addr));
+	}
+
+	if (ctx_priv->st2_num_taps > 0) {
+		st1_chanxexp = slot->num_channel * (ctx_priv->st1_num_exp - 1);
+
+		regmap_update_bits(easrc->regmap, reg1,
+				   EASRC_DPCS0R1_ST1_EXP_MASK,
+				   EASRC_DPCS0R1_ST1_EXP(st1_chanxexp));
+
+		st2_mem_alloc = slot->num_channel * ctx_priv->st2_num_taps;
+		slot->pf_mem_used += st2_mem_alloc;
+		regmap_update_bits(easrc->regmap, reg3,
+				   EASRC_DPCS0R3_ST2_MA_MASK,
+				   EASRC_DPCS0R3_ST2_MA(st2_mem_alloc));
+
+		if (slot->slot_index == 1)
+			addr = PREFILTER_MEM_LEN - st1_mem_alloc - st2_mem_alloc;
+		else
+			addr = st1_mem_alloc;
+
+		regmap_update_bits(easrc->regmap, reg3,
+				   EASRC_DPCS0R3_ST2_SA_MASK,
+				   EASRC_DPCS0R3_ST2_SA(addr));
+	}
+
+	regmap_update_bits(easrc->regmap, reg0,
+			   EASRC_DPCS0R0_EN_MASK, EASRC_DPCS0R0_EN);
+
+	return 0;
+}
+
+/*
+ * fsl_easrc_config_slot
+ *
+ * A single context can be split amongst any of the 4 context processing pipes
+ * in the design.
+ * The total number of channels consumed within the context processor must be
+ * less than or equal to 8. if a single context is configured to contain more
+ * than 8 channels then it must be distributed across multiple context
+ * processing pipe slots.
+ *
+ */
+static int fsl_easrc_config_slot(struct fsl_asrc *easrc, unsigned int ctx_id)
+{
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	struct fsl_asrc_pair *ctx = easrc->pair[ctx_id];
+	int req_channels = ctx->channels;
+	int start_channel = 0, avail_channel;
+	struct fsl_easrc_slot *slot0, *slot1;
+	struct fsl_easrc_slot *slota, *slotb;
+	int i, ret;
+
+	if (req_channels <= 0)
+		return -EINVAL;
+
+	for (i = 0; i < EASRC_CTX_MAX_NUM; i++) {
+		slot0 = &easrc_priv->slot[i][0];
+		slot1 = &easrc_priv->slot[i][1];
+
+		if (slot0->busy && slot1->busy) {
+			continue;
+		} else if ((slot0->busy && slot0->ctx_index == ctx->index) ||
+			 (slot1->busy && slot1->ctx_index == ctx->index)) {
+			continue;
+		} else if (!slot0->busy) {
+			slota = slot0;
+			slotb = slot1;
+			slota->slot_index = 0;
+		} else if (!slot1->busy) {
+			slota = slot1;
+			slotb = slot0;
+			slota->slot_index = 1;
+		}
+
+		if (!slota || !slotb)
+			continue;
+
+		avail_channel = fsl_easrc_max_ch_for_slot(ctx, slotb);
+		if (avail_channel <= 0)
+			continue;
+
+		ret = fsl_easrc_config_one_slot(ctx, slota, i, &req_channels,
+						&start_channel, &avail_channel);
+		if (ret)
+			return ret;
+
+		if (req_channels > 0)
+			continue;
+		else
+			break;
+	}
+
+	if (req_channels > 0) {
+		dev_err(&easrc->pdev->dev, "no avail slot.\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/*
+ * fsl_easrc_release_slot
+ *
+ * Clear the slot configuration
+ */
+static int fsl_easrc_release_slot(struct fsl_asrc *easrc, unsigned int ctx_id)
+{
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	struct fsl_asrc_pair *ctx = easrc->pair[ctx_id];
+	int i;
+
+	for (i = 0; i < EASRC_CTX_MAX_NUM; i++) {
+		if (easrc_priv->slot[i][0].busy &&
+		    easrc_priv->slot[i][0].ctx_index == ctx->index) {
+			easrc_priv->slot[i][0].busy = false;
+			easrc_priv->slot[i][0].num_channel = 0;
+			easrc_priv->slot[i][0].pf_mem_used = 0;
+			/* set registers */
+			regmap_write(easrc->regmap, REG_EASRC_DPCS0R0(i), 0);
+			regmap_write(easrc->regmap, REG_EASRC_DPCS0R1(i), 0);
+			regmap_write(easrc->regmap, REG_EASRC_DPCS0R2(i), 0);
+			regmap_write(easrc->regmap, REG_EASRC_DPCS0R3(i), 0);
+		}
+
+		if (easrc_priv->slot[i][1].busy &&
+		    easrc_priv->slot[i][1].ctx_index == ctx->index) {
+			easrc_priv->slot[i][1].busy = false;
+			easrc_priv->slot[i][1].num_channel = 0;
+			easrc_priv->slot[i][1].pf_mem_used = 0;
+			/* set registers */
+			regmap_write(easrc->regmap, REG_EASRC_DPCS1R0(i), 0);
+			regmap_write(easrc->regmap, REG_EASRC_DPCS1R1(i), 0);
+			regmap_write(easrc->regmap, REG_EASRC_DPCS1R2(i), 0);
+			regmap_write(easrc->regmap, REG_EASRC_DPCS1R3(i), 0);
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * fsl_easrc_config_context
+ *
+ * Configure the register relate with context.
+ */
+static int fsl_easrc_config_context(struct fsl_asrc *easrc, unsigned int ctx_id)
+{
+	struct fsl_easrc_ctx_priv *ctx_priv;
+	struct fsl_asrc_pair *ctx;
+	struct device *dev;
+	unsigned long lock_flags;
+	int ret;
+
+	if (!easrc)
+		return -ENODEV;
+
+	dev = &easrc->pdev->dev;
+
+	if (ctx_id >= EASRC_CTX_MAX_NUM) {
+		dev_err(dev, "Invalid context id[%d]\n", ctx_id);
+		return -EINVAL;
+	}
+
+	ctx = easrc->pair[ctx_id];
+
+	ctx_priv = ctx->private;
+
+	fsl_easrc_normalize_rates(ctx);
+
+	ret = fsl_easrc_set_rs_ratio(ctx);
+	if (ret)
+		return ret;
+
+	/* Initialize the context coeficients */
+	ret = fsl_easrc_prefilter_config(easrc, ctx->index);
+	if (ret)
+		return ret;
+
+	spin_lock_irqsave(&easrc->lock, lock_flags);
+	ret = fsl_easrc_config_slot(easrc, ctx->index);
+	spin_unlock_irqrestore(&easrc->lock, lock_flags);
+	if (ret)
+		return ret;
+
+	/*
+	 * Both prefilter and resampling filters can use following
+	 * initialization modes:
+	 * 2 - zero-fil mode
+	 * 1 - replication mode
+	 * 0 - software control
+	 */
+	regmap_update_bits(easrc->regmap, REG_EASRC_CCE1(ctx_id),
+			   EASRC_CCE1_RS_INIT_MASK,
+			   EASRC_CCE1_RS_INIT(ctx_priv->rs_init_mode));
+
+	regmap_update_bits(easrc->regmap, REG_EASRC_CCE1(ctx_id),
+			   EASRC_CCE1_PF_INIT_MASK,
+			   EASRC_CCE1_PF_INIT(ctx_priv->pf_init_mode));
+
+	/*
+	 * Context Input FIFO Watermark
+	 * DMA request is generated when input FIFO < FIFO_WTMK
+	 */
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx_id),
+			   EASRC_CC_FIFO_WTMK_MASK,
+			   EASRC_CC_FIFO_WTMK(ctx_priv->in_params.fifo_wtmk));
+
+	/*
+	 * Context Output FIFO Watermark
+	 * DMA request is generated when output FIFO > FIFO_WTMK
+	 * So we set fifo_wtmk -1 to register.
+	 */
+	regmap_update_bits(easrc->regmap, REG_EASRC_COC(ctx_id),
+			   EASRC_COC_FIFO_WTMK_MASK,
+			   EASRC_COC_FIFO_WTMK(ctx_priv->out_params.fifo_wtmk - 1));
+
+	/* Number of channels */
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx_id),
+			   EASRC_CC_CHEN_MASK,
+			   EASRC_CC_CHEN(ctx->channels - 1));
+	return 0;
+}
+
+static int fsl_easrc_process_format(struct fsl_asrc_pair *ctx,
+				    struct fsl_easrc_data_fmt *fmt,
+				    snd_pcm_format_t raw_fmt)
+{
+	struct fsl_asrc *easrc = ctx->asrc;
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	int ret;
+
+	if (!fmt)
+		return -EINVAL;
+
+	/*
+	 * Context Input Floating Point Format
+	 * 0 - Integer Format
+	 * 1 - Single Precision FP Format
+	 */
+	fmt->floating_point = !snd_pcm_format_linear(raw_fmt);
+	fmt->sample_pos = 0;
+	fmt->iec958 = 0;
+
+	/* Get the data width */
+	switch (snd_pcm_format_width(raw_fmt)) {
+	case 16:
+		fmt->width = EASRC_WIDTH_16_BIT;
+		fmt->addexp = 15;
+		break;
+	case 20:
+		fmt->width = EASRC_WIDTH_20_BIT;
+		fmt->addexp = 19;
+		break;
+	case 24:
+		fmt->width = EASRC_WIDTH_24_BIT;
+		fmt->addexp = 23;
+		break;
+	case 32:
+		fmt->width = EASRC_WIDTH_32_BIT;
+		fmt->addexp = 31;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (raw_fmt) {
+	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
+		fmt->width = easrc_priv->bps_iec958[ctx->index];
+		fmt->iec958 = 1;
+		fmt->floating_point = 0;
+		if (fmt->width == EASRC_WIDTH_16_BIT) {
+			fmt->sample_pos = 12;
+			fmt->addexp = 15;
+		} else if (fmt->width == EASRC_WIDTH_20_BIT) {
+			fmt->sample_pos = 8;
+			fmt->addexp = 19;
+		} else if (fmt->width == EASRC_WIDTH_24_BIT) {
+			fmt->sample_pos = 4;
+			fmt->addexp = 23;
+		}
+		break;
+	default:
+		break;
+	}
+
+	/*
+	 * Data Endianness
+	 * 0 - Little-Endian
+	 * 1 - Big-Endian
+	 */
+	ret = snd_pcm_format_big_endian(raw_fmt);
+	if (ret < 0)
+		return ret;
+
+	fmt->endianness = ret;
+
+	/*
+	 * Input Data sign
+	 * 0b - Signed Format
+	 * 1b - Unsigned Format
+	 */
+	fmt->unsign = snd_pcm_format_unsigned(raw_fmt) > 0 ? 1 : 0;
+
+	return 0;
+}
+
+static int fsl_easrc_set_ctx_format(struct fsl_asrc_pair *ctx,
+				    snd_pcm_format_t *in_raw_format,
+				    snd_pcm_format_t *out_raw_format)
+{
+	struct fsl_asrc *easrc = ctx->asrc;
+	struct fsl_easrc_ctx_priv *ctx_priv = ctx->private;
+	struct fsl_easrc_data_fmt *in_fmt = &ctx_priv->in_params.fmt;
+	struct fsl_easrc_data_fmt *out_fmt = &ctx_priv->out_params.fmt;
+	int ret = 0;
+
+	/* Get the bitfield values for input data format */
+	if (in_raw_format && out_raw_format) {
+		ret = fsl_easrc_process_format(ctx, in_fmt, *in_raw_format);
+		if (ret)
+			return ret;
+	}
+
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx->index),
+			   EASRC_CC_BPS_MASK,
+			   EASRC_CC_BPS(in_fmt->width));
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx->index),
+			   EASRC_CC_ENDIANNESS_MASK,
+			   in_fmt->endianness << EASRC_CC_ENDIANNESS_SHIFT);
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx->index),
+			   EASRC_CC_FMT_MASK,
+			   in_fmt->floating_point << EASRC_CC_FMT_SHIFT);
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx->index),
+			   EASRC_CC_INSIGN_MASK,
+			   in_fmt->unsign << EASRC_CC_INSIGN_SHIFT);
+
+	/* In Sample Position */
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx->index),
+			   EASRC_CC_SAMPLE_POS_MASK,
+			   EASRC_CC_SAMPLE_POS(in_fmt->sample_pos));
+
+	/* Get the bitfield values for input data format */
+	if (in_raw_format && out_raw_format) {
+		ret = fsl_easrc_process_format(ctx, out_fmt, *out_raw_format);
+		if (ret)
+			return ret;
+	}
+
+	regmap_update_bits(easrc->regmap, REG_EASRC_COC(ctx->index),
+			   EASRC_COC_BPS_MASK,
+			   EASRC_COC_BPS(out_fmt->width));
+	regmap_update_bits(easrc->regmap, REG_EASRC_COC(ctx->index),
+			   EASRC_COC_ENDIANNESS_MASK,
+			   out_fmt->endianness << EASRC_COC_ENDIANNESS_SHIFT);
+	regmap_update_bits(easrc->regmap, REG_EASRC_COC(ctx->index),
+			   EASRC_COC_FMT_MASK,
+			   out_fmt->floating_point << EASRC_COC_FMT_SHIFT);
+	regmap_update_bits(easrc->regmap, REG_EASRC_COC(ctx->index),
+			   EASRC_COC_OUTSIGN_MASK,
+			   out_fmt->unsign << EASRC_COC_OUTSIGN_SHIFT);
+
+	/* Out Sample Position */
+	regmap_update_bits(easrc->regmap, REG_EASRC_COC(ctx->index),
+			   EASRC_COC_SAMPLE_POS_MASK,
+			   EASRC_COC_SAMPLE_POS(out_fmt->sample_pos));
+
+	regmap_update_bits(easrc->regmap, REG_EASRC_COC(ctx->index),
+			   EASRC_COC_IEC_EN_MASK,
+			   out_fmt->iec958 << EASRC_COC_IEC_EN_SHIFT);
+
+	return ret;
+}
+
+/*
+ * The ASRC provides interleaving support in hardware to ensure that a
+ * variety of sample sources can be internally combined
+ * to conform with this format. Interleaving parameters are accessed
+ * through the ASRC_CTRL_IN_ACCESSa and ASRC_CTRL_OUT_ACCESSa registers
+ */
+static int fsl_easrc_set_ctx_organziation(struct fsl_asrc_pair *ctx)
+{
+	struct fsl_easrc_ctx_priv *ctx_priv;
+	struct fsl_asrc *easrc;
+
+	if (!ctx)
+		return -ENODEV;
+
+	easrc = ctx->asrc;
+	ctx_priv = ctx->private;
+
+	/* input interleaving parameters */
+	regmap_update_bits(easrc->regmap, REG_EASRC_CIA(ctx->index),
+			   EASRC_CIA_ITER_MASK,
+			   EASRC_CIA_ITER(ctx_priv->in_params.iterations));
+	regmap_update_bits(easrc->regmap, REG_EASRC_CIA(ctx->index),
+			   EASRC_CIA_GRLEN_MASK,
+			   EASRC_CIA_GRLEN(ctx_priv->in_params.group_len));
+	regmap_update_bits(easrc->regmap, REG_EASRC_CIA(ctx->index),
+			   EASRC_CIA_ACCLEN_MASK,
+			   EASRC_CIA_ACCLEN(ctx_priv->in_params.access_len));
+
+	/* output interleaving parameters */
+	regmap_update_bits(easrc->regmap, REG_EASRC_COA(ctx->index),
+			   EASRC_COA_ITER_MASK,
+			   EASRC_COA_ITER(ctx_priv->out_params.iterations));
+	regmap_update_bits(easrc->regmap, REG_EASRC_COA(ctx->index),
+			   EASRC_COA_GRLEN_MASK,
+			   EASRC_COA_GRLEN(ctx_priv->out_params.group_len));
+	regmap_update_bits(easrc->regmap, REG_EASRC_COA(ctx->index),
+			   EASRC_COA_ACCLEN_MASK,
+			   EASRC_COA_ACCLEN(ctx_priv->out_params.access_len));
+
+	return 0;
+}
+
+/*
+ * Request one of the available contexts
+ *
+ * Returns a negative number on error and >=0 as context id
+ * on success
+ */
+static int fsl_easrc_request_context(int channels, struct fsl_asrc_pair *ctx)
+{
+	enum asrc_pair_index index = ASRC_INVALID_PAIR;
+	struct fsl_asrc *easrc = ctx->asrc;
+	struct device *dev;
+	unsigned long lock_flags;
+	int ret = 0;
+	int i;
+
+	dev = &easrc->pdev->dev;
+
+	spin_lock_irqsave(&easrc->lock, lock_flags);
+
+	for (i = ASRC_PAIR_A; i < EASRC_CTX_MAX_NUM; i++) {
+		if (easrc->pair[i])
+			continue;
+
+		index = i;
+		break;
+	}
+
+	if (index == ASRC_INVALID_PAIR) {
+		dev_err(dev, "all contexts are busy\n");
+		ret = -EBUSY;
+	} else if (channels > easrc->channel_avail) {
+		dev_err(dev, "can't give the required channels: %d\n",
+			channels);
+		ret = -EINVAL;
+	} else {
+		ctx->index = index;
+		ctx->channels = channels;
+		easrc->pair[index] = ctx;
+		easrc->channel_avail -= channels;
+	}
+
+	spin_unlock_irqrestore(&easrc->lock, lock_flags);
+
+	return ret;
+}
+
+/*
+ * Release the context
+ *
+ * This funciton is mainly doing the revert thing in request context
+ */
+static void fsl_easrc_release_context(struct fsl_asrc_pair *ctx)
+{
+	unsigned long lock_flags;
+	struct fsl_asrc *easrc;
+
+	if (!ctx)
+		return;
+
+	easrc = ctx->asrc;
+
+	spin_lock_irqsave(&easrc->lock, lock_flags);
+
+	fsl_easrc_release_slot(easrc, ctx->index);
+
+	easrc->channel_avail += ctx->channels;
+	easrc->pair[ctx->index] = NULL;
+
+	spin_unlock_irqrestore(&easrc->lock, lock_flags);
+}
+
+/*
+ * Start the context
+ *
+ * Enable the DMA request and context
+ */
+static int fsl_easrc_start_context(struct fsl_asrc_pair *ctx)
+{
+	struct fsl_asrc *easrc = ctx->asrc;
+
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx->index),
+			   EASRC_CC_FWMDE_MASK, EASRC_CC_FWMDE);
+	regmap_update_bits(easrc->regmap, REG_EASRC_COC(ctx->index),
+			   EASRC_COC_FWMDE_MASK, EASRC_COC_FWMDE);
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx->index),
+			   EASRC_CC_EN_MASK, EASRC_CC_EN);
+	return 0;
+}
+
+/*
+ * Stop the context
+ *
+ * Disable the DMA request and context
+ */
+static int fsl_easrc_stop_context(struct fsl_asrc_pair *ctx)
+{
+	struct fsl_asrc *easrc = ctx->asrc;
+	int val, i;
+	int size;
+	int retry = 200;
+
+	regmap_read(easrc->regmap, REG_EASRC_CC(ctx->index), &val);
+
+	if (val & EASRC_CC_EN_MASK) {
+		regmap_update_bits(easrc->regmap,
+				   REG_EASRC_CC(ctx->index),
+				   EASRC_CC_STOP_MASK, EASRC_CC_STOP);
+		do {
+			regmap_read(easrc->regmap, REG_EASRC_SFS(ctx->index), &val);
+			val &= EASRC_SFS_NSGO_MASK;
+			size = val >> EASRC_SFS_NSGO_SHIFT;
+
+			/* Read FIFO, drop the data */
+			for (i = 0; i < size * ctx->channels; i++)
+				regmap_read(easrc->regmap, REG_EASRC_RDFIFO(ctx->index), &val);
+			/* Check RUN_STOP_DONE */
+			regmap_read(easrc->regmap, REG_EASRC_IRQF, &val);
+			if (val & EASRC_IRQF_RSD(1 << ctx->index)) {
+				/*Clear RUN_STOP_DONE*/
+				regmap_write_bits(easrc->regmap,
+						  REG_EASRC_IRQF,
+						  EASRC_IRQF_RSD(1 << ctx->index),
+						  EASRC_IRQF_RSD(1 << ctx->index));
+				break;
+			}
+			udelay(100);
+		} while (--retry);
+
+		if (retry == 0)
+			dev_warn(&easrc->pdev->dev, "RUN STOP fail\n");
+	}
+
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx->index),
+			   EASRC_CC_EN_MASK | EASRC_CC_STOP_MASK, 0);
+	regmap_update_bits(easrc->regmap, REG_EASRC_CC(ctx->index),
+			   EASRC_CC_FWMDE_MASK, 0);
+	regmap_update_bits(easrc->regmap, REG_EASRC_COC(ctx->index),
+			   EASRC_COC_FWMDE_MASK, 0);
+	return 0;
+}
+
+static struct dma_chan *fsl_easrc_get_dma_channel(struct fsl_asrc_pair *ctx,
+						  bool dir)
+{
+	struct fsl_asrc *easrc = ctx->asrc;
+	enum asrc_pair_index index = ctx->index;
+	char name[8];
+
+	/* Example of dma name: ctx0_rx */
+	sprintf(name, "ctx%c_%cx", index + '0', dir == IN ? 'r' : 't');
+
+	return dma_request_slave_channel(&easrc->pdev->dev, name);
+};
+
+static const unsigned int easrc_rates[] = {
+	8000, 11025, 12000, 16000,
+	22050, 24000, 32000, 44100,
+	48000, 64000, 88200, 96000,
+	128000, 176400, 192000, 256000,
+	352800, 384000, 705600, 768000,
+};
+
+static const struct snd_pcm_hw_constraint_list easrc_rate_constraints = {
+	.count = ARRAY_SIZE(easrc_rates),
+	.list = easrc_rates,
+};
+
+static int fsl_easrc_startup(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+					  SNDRV_PCM_HW_PARAM_RATE,
+					  &easrc_rate_constraints);
+}
+
+static int fsl_easrc_trigger(struct snd_pcm_substream *substream,
+			     int cmd, struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *ctx = runtime->private_data;
+	int ret;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		ret = fsl_easrc_start_context(ctx);
+		if (ret)
+			return ret;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		ret = fsl_easrc_stop_context(ctx);
+		if (ret)
+			return ret;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int fsl_easrc_hw_params(struct snd_pcm_substream *substream,
+			       struct snd_pcm_hw_params *params,
+			       struct snd_soc_dai *dai)
+{
+	struct fsl_asrc *easrc = snd_soc_dai_get_drvdata(dai);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct device *dev = &easrc->pdev->dev;
+	struct fsl_asrc_pair *ctx = runtime->private_data;
+	struct fsl_easrc_ctx_priv *ctx_priv = ctx->private;
+	unsigned int channels = params_channels(params);
+	unsigned int rate = params_rate(params);
+	snd_pcm_format_t format = params_format(params);
+	int ret;
+
+	ret = fsl_easrc_request_context(channels, ctx);
+	if (ret) {
+		dev_err(dev, "failed to request context\n");
+		return ret;
+	}
+
+	ctx_priv->ctx_streams |= BIT(substream->stream);
+
+	/*
+	 * Set the input and output ratio so we can compute
+	 * the resampling ratio in RS_LOW/HIGH
+	 */
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		ctx_priv->in_params.sample_rate = rate;
+		ctx_priv->in_params.sample_format = format;
+		ctx_priv->out_params.sample_rate = easrc->asrc_rate;
+		ctx_priv->out_params.sample_format = easrc->asrc_format;
+	} else {
+		ctx_priv->out_params.sample_rate = rate;
+		ctx_priv->out_params.sample_format = format;
+		ctx_priv->in_params.sample_rate = easrc->asrc_rate;
+		ctx_priv->in_params.sample_format = easrc->asrc_format;
+	}
+
+	ctx->channels = channels;
+	ctx_priv->in_params.fifo_wtmk  = 0x20;
+	ctx_priv->out_params.fifo_wtmk = 0x20;
+
+	/*
+	 * Do only rate conversion and keep the same format for input
+	 * and output data
+	 */
+	ret = fsl_easrc_set_ctx_format(ctx,
+				       &ctx_priv->in_params.sample_format,
+				       &ctx_priv->out_params.sample_format);
+	if (ret) {
+		dev_err(dev, "failed to set format %d", ret);
+		return ret;
+	}
+
+	ret = fsl_easrc_config_context(easrc, ctx->index);
+	if (ret) {
+		dev_err(dev, "failed to config context\n");
+		return ret;
+	}
+
+	ctx_priv->in_params.iterations = 1;
+	ctx_priv->in_params.group_len = ctx->channels;
+	ctx_priv->in_params.access_len = ctx->channels;
+	ctx_priv->out_params.iterations = 1;
+	ctx_priv->out_params.group_len = ctx->channels;
+	ctx_priv->out_params.access_len = ctx->channels;
+
+	ret = fsl_easrc_set_ctx_organziation(ctx);
+	if (ret) {
+		dev_err(dev, "failed to set fifo organization\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int fsl_easrc_hw_free(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct fsl_asrc_pair *ctx = runtime->private_data;
+	struct fsl_easrc_ctx_priv *ctx_priv;
+
+	if (!ctx)
+		return -EINVAL;
+
+	ctx_priv = ctx->private;
+
+	if (ctx_priv->ctx_streams & BIT(substream->stream)) {
+		ctx_priv->ctx_streams &= ~BIT(substream->stream);
+		fsl_easrc_release_context(ctx);
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops fsl_easrc_dai_ops = {
+	.startup = fsl_easrc_startup,
+	.trigger = fsl_easrc_trigger,
+	.hw_params = fsl_easrc_hw_params,
+	.hw_free = fsl_easrc_hw_free,
+};
+
+static int fsl_easrc_dai_probe(struct snd_soc_dai *cpu_dai)
+{
+	struct fsl_asrc *easrc = dev_get_drvdata(cpu_dai->dev);
+
+	snd_soc_dai_init_dma_data(cpu_dai,
+				  &easrc->dma_params_tx,
+				  &easrc->dma_params_rx);
+	return 0;
+}
+
+static struct snd_soc_dai_driver fsl_easrc_dai = {
+	.probe = fsl_easrc_dai_probe,
+	.playback = {
+		.stream_name = "ASRC-Playback",
+		.channels_min = 1,
+		.channels_max = 32,
+		.rate_min = 8000,
+		.rate_max = 768000,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_EASRC_FORMATS,
+	},
+	.capture = {
+		.stream_name = "ASRC-Capture",
+		.channels_min = 1,
+		.channels_max = 32,
+		.rate_min = 8000,
+		.rate_max = 768000,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_EASRC_FORMATS |
+			   SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE,
+	},
+	.ops = &fsl_easrc_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_easrc_component = {
+	.name			= "fsl-easrc-dai",
+	.controls		= fsl_easrc_snd_controls,
+	.num_controls		= ARRAY_SIZE(fsl_easrc_snd_controls),
+	.legacy_dai_naming	= 1,
+};
+
+static const struct reg_default fsl_easrc_reg_defaults[] = {
+	{REG_EASRC_WRFIFO(0),	0x00000000},
+	{REG_EASRC_WRFIFO(1),	0x00000000},
+	{REG_EASRC_WRFIFO(2),	0x00000000},
+	{REG_EASRC_WRFIFO(3),	0x00000000},
+	{REG_EASRC_RDFIFO(0),	0x00000000},
+	{REG_EASRC_RDFIFO(1),	0x00000000},
+	{REG_EASRC_RDFIFO(2),	0x00000000},
+	{REG_EASRC_RDFIFO(3),	0x00000000},
+	{REG_EASRC_CC(0),	0x00000000},
+	{REG_EASRC_CC(1),	0x00000000},
+	{REG_EASRC_CC(2),	0x00000000},
+	{REG_EASRC_CC(3),	0x00000000},
+	{REG_EASRC_CCE1(0),	0x00000000},
+	{REG_EASRC_CCE1(1),	0x00000000},
+	{REG_EASRC_CCE1(2),	0x00000000},
+	{REG_EASRC_CCE1(3),	0x00000000},
+	{REG_EASRC_CCE2(0),	0x00000000},
+	{REG_EASRC_CCE2(1),	0x00000000},
+	{REG_EASRC_CCE2(2),	0x00000000},
+	{REG_EASRC_CCE2(3),	0x00000000},
+	{REG_EASRC_CIA(0),	0x00000000},
+	{REG_EASRC_CIA(1),	0x00000000},
+	{REG_EASRC_CIA(2),	0x00000000},
+	{REG_EASRC_CIA(3),	0x00000000},
+	{REG_EASRC_DPCS0R0(0),	0x00000000},
+	{REG_EASRC_DPCS0R0(1),	0x00000000},
+	{REG_EASRC_DPCS0R0(2),	0x00000000},
+	{REG_EASRC_DPCS0R0(3),	0x00000000},
+	{REG_EASRC_DPCS0R1(0),	0x00000000},
+	{REG_EASRC_DPCS0R1(1),	0x00000000},
+	{REG_EASRC_DPCS0R1(2),	0x00000000},
+	{REG_EASRC_DPCS0R1(3),	0x00000000},
+	{REG_EASRC_DPCS0R2(0),	0x00000000},
+	{REG_EASRC_DPCS0R2(1),	0x00000000},
+	{REG_EASRC_DPCS0R2(2),	0x00000000},
+	{REG_EASRC_DPCS0R2(3),	0x00000000},
+	{REG_EASRC_DPCS0R3(0),	0x00000000},
+	{REG_EASRC_DPCS0R3(1),	0x00000000},
+	{REG_EASRC_DPCS0R3(2),	0x00000000},
+	{REG_EASRC_DPCS0R3(3),	0x00000000},
+	{REG_EASRC_DPCS1R0(0),	0x00000000},
+	{REG_EASRC_DPCS1R0(1),	0x00000000},
+	{REG_EASRC_DPCS1R0(2),	0x00000000},
+	{REG_EASRC_DPCS1R0(3),	0x00000000},
+	{REG_EASRC_DPCS1R1(0),	0x00000000},
+	{REG_EASRC_DPCS1R1(1),	0x00000000},
+	{REG_EASRC_DPCS1R1(2),	0x00000000},
+	{REG_EASRC_DPCS1R1(3),	0x00000000},
+	{REG_EASRC_DPCS1R2(0),	0x00000000},
+	{REG_EASRC_DPCS1R2(1),	0x00000000},
+	{REG_EASRC_DPCS1R2(2),	0x00000000},
+	{REG_EASRC_DPCS1R2(3),	0x00000000},
+	{REG_EASRC_DPCS1R3(0),	0x00000000},
+	{REG_EASRC_DPCS1R3(1),	0x00000000},
+	{REG_EASRC_DPCS1R3(2),	0x00000000},
+	{REG_EASRC_DPCS1R3(3),	0x00000000},
+	{REG_EASRC_COC(0),	0x00000000},
+	{REG_EASRC_COC(1),	0x00000000},
+	{REG_EASRC_COC(2),	0x00000000},
+	{REG_EASRC_COC(3),	0x00000000},
+	{REG_EASRC_COA(0),	0x00000000},
+	{REG_EASRC_COA(1),	0x00000000},
+	{REG_EASRC_COA(2),	0x00000000},
+	{REG_EASRC_COA(3),	0x00000000},
+	{REG_EASRC_SFS(0),	0x00000000},
+	{REG_EASRC_SFS(1),	0x00000000},
+	{REG_EASRC_SFS(2),	0x00000000},
+	{REG_EASRC_SFS(3),	0x00000000},
+	{REG_EASRC_RRL(0),	0x00000000},
+	{REG_EASRC_RRL(1),	0x00000000},
+	{REG_EASRC_RRL(2),	0x00000000},
+	{REG_EASRC_RRL(3),	0x00000000},
+	{REG_EASRC_RRH(0),	0x00000000},
+	{REG_EASRC_RRH(1),	0x00000000},
+	{REG_EASRC_RRH(2),	0x00000000},
+	{REG_EASRC_RRH(3),	0x00000000},
+	{REG_EASRC_RUC(0),	0x00000000},
+	{REG_EASRC_RUC(1),	0x00000000},
+	{REG_EASRC_RUC(2),	0x00000000},
+	{REG_EASRC_RUC(3),	0x00000000},
+	{REG_EASRC_RUR(0),	0x7FFFFFFF},
+	{REG_EASRC_RUR(1),	0x7FFFFFFF},
+	{REG_EASRC_RUR(2),	0x7FFFFFFF},
+	{REG_EASRC_RUR(3),	0x7FFFFFFF},
+	{REG_EASRC_RCTCL,	0x00000000},
+	{REG_EASRC_RCTCH,	0x00000000},
+	{REG_EASRC_PCF(0),	0x00000000},
+	{REG_EASRC_PCF(1),	0x00000000},
+	{REG_EASRC_PCF(2),	0x00000000},
+	{REG_EASRC_PCF(3),	0x00000000},
+	{REG_EASRC_CRCM,	0x00000000},
+	{REG_EASRC_CRCC,	0x00000000},
+	{REG_EASRC_IRQC,	0x00000FFF},
+	{REG_EASRC_IRQF,	0x00000000},
+	{REG_EASRC_CS0(0),	0x00000000},
+	{REG_EASRC_CS0(1),	0x00000000},
+	{REG_EASRC_CS0(2),	0x00000000},
+	{REG_EASRC_CS0(3),	0x00000000},
+	{REG_EASRC_CS1(0),	0x00000000},
+	{REG_EASRC_CS1(1),	0x00000000},
+	{REG_EASRC_CS1(2),	0x00000000},
+	{REG_EASRC_CS1(3),	0x00000000},
+	{REG_EASRC_CS2(0),	0x00000000},
+	{REG_EASRC_CS2(1),	0x00000000},
+	{REG_EASRC_CS2(2),	0x00000000},
+	{REG_EASRC_CS2(3),	0x00000000},
+	{REG_EASRC_CS3(0),	0x00000000},
+	{REG_EASRC_CS3(1),	0x00000000},
+	{REG_EASRC_CS3(2),	0x00000000},
+	{REG_EASRC_CS3(3),	0x00000000},
+	{REG_EASRC_CS4(0),	0x00000000},
+	{REG_EASRC_CS4(1),	0x00000000},
+	{REG_EASRC_CS4(2),	0x00000000},
+	{REG_EASRC_CS4(3),	0x00000000},
+	{REG_EASRC_CS5(0),	0x00000000},
+	{REG_EASRC_CS5(1),	0x00000000},
+	{REG_EASRC_CS5(2),	0x00000000},
+	{REG_EASRC_CS5(3),	0x00000000},
+	{REG_EASRC_DBGC,	0x00000000},
+	{REG_EASRC_DBGS,	0x00000000},
+};
+
+static const struct regmap_range fsl_easrc_readable_ranges[] = {
+	regmap_reg_range(REG_EASRC_RDFIFO(0), REG_EASRC_RCTCH),
+	regmap_reg_range(REG_EASRC_PCF(0), REG_EASRC_PCF(3)),
+	regmap_reg_range(REG_EASRC_CRCC, REG_EASRC_DBGS),
+};
+
+static const struct regmap_access_table fsl_easrc_readable_table = {
+	.yes_ranges = fsl_easrc_readable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(fsl_easrc_readable_ranges),
+};
+
+static const struct regmap_range fsl_easrc_writeable_ranges[] = {
+	regmap_reg_range(REG_EASRC_WRFIFO(0), REG_EASRC_WRFIFO(3)),
+	regmap_reg_range(REG_EASRC_CC(0), REG_EASRC_COA(3)),
+	regmap_reg_range(REG_EASRC_RRL(0), REG_EASRC_RCTCH),
+	regmap_reg_range(REG_EASRC_PCF(0), REG_EASRC_DBGC),
+};
+
+static const struct regmap_access_table fsl_easrc_writeable_table = {
+	.yes_ranges = fsl_easrc_writeable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(fsl_easrc_writeable_ranges),
+};
+
+static const struct regmap_range fsl_easrc_volatileable_ranges[] = {
+	regmap_reg_range(REG_EASRC_RDFIFO(0), REG_EASRC_RDFIFO(3)),
+	regmap_reg_range(REG_EASRC_SFS(0), REG_EASRC_SFS(3)),
+	regmap_reg_range(REG_EASRC_IRQF, REG_EASRC_IRQF),
+	regmap_reg_range(REG_EASRC_DBGS, REG_EASRC_DBGS),
+};
+
+static const struct regmap_access_table fsl_easrc_volatileable_table = {
+	.yes_ranges = fsl_easrc_volatileable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(fsl_easrc_volatileable_ranges),
+};
+
+static const struct regmap_config fsl_easrc_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+
+	.max_register = REG_EASRC_DBGS,
+	.reg_defaults = fsl_easrc_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(fsl_easrc_reg_defaults),
+	.rd_table = &fsl_easrc_readable_table,
+	.wr_table = &fsl_easrc_writeable_table,
+	.volatile_table = &fsl_easrc_volatileable_table,
+	.cache_type = REGCACHE_RBTREE,
+};
+
+#ifdef DEBUG
+static void fsl_easrc_dump_firmware(struct fsl_asrc *easrc)
+{
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	struct asrc_firmware_hdr *firm = easrc_priv->firmware_hdr;
+	struct interp_params *interp = easrc_priv->interp;
+	struct prefil_params *prefil = easrc_priv->prefil;
+	struct device *dev = &easrc->pdev->dev;
+	int i;
+
+	if (firm->magic != FIRMWARE_MAGIC) {
+		dev_err(dev, "Wrong magic. Something went wrong!");
+		return;
+	}
+
+	dev_dbg(dev, "Firmware v%u dump:\n", firm->firmware_version);
+	dev_dbg(dev, "Num prefilter scenarios: %u\n", firm->prefil_scen);
+	dev_dbg(dev, "Num interpolation scenarios: %u\n", firm->interp_scen);
+	dev_dbg(dev, "\nInterpolation scenarios:\n");
+
+	for (i = 0; i < firm->interp_scen; i++) {
+		if (interp[i].magic != FIRMWARE_MAGIC) {
+			dev_dbg(dev, "%d. wrong interp magic: %x\n",
+				i, interp[i].magic);
+			continue;
+		}
+		dev_dbg(dev, "%d. taps: %u, phases: %u, center: %llu\n", i,
+			interp[i].num_taps, interp[i].num_phases,
+			interp[i].center_tap);
+	}
+
+	for (i = 0; i < firm->prefil_scen; i++) {
+		if (prefil[i].magic != FIRMWARE_MAGIC) {
+			dev_dbg(dev, "%d. wrong prefil magic: %x\n",
+				i, prefil[i].magic);
+			continue;
+		}
+		dev_dbg(dev, "%d. insr: %u, outsr: %u, st1: %u, st2: %u\n", i,
+			prefil[i].insr, prefil[i].outsr,
+			prefil[i].st1_taps, prefil[i].st2_taps);
+	}
+
+	dev_dbg(dev, "end of firmware dump\n");
+}
+#endif
+
+static int fsl_easrc_get_firmware(struct fsl_asrc *easrc)
+{
+	struct fsl_easrc_priv *easrc_priv;
+	const struct firmware **fw_p;
+	u32 pnum, inum, offset;
+	const u8 *data;
+	int ret;
+
+	if (!easrc)
+		return -EINVAL;
+
+	easrc_priv = easrc->private;
+	fw_p = &easrc_priv->fw;
+
+	ret = request_firmware(fw_p, easrc_priv->fw_name, &easrc->pdev->dev);
+	if (ret)
+		return ret;
+
+	data = easrc_priv->fw->data;
+
+	easrc_priv->firmware_hdr = (struct asrc_firmware_hdr *)data;
+	pnum = easrc_priv->firmware_hdr->prefil_scen;
+	inum = easrc_priv->firmware_hdr->interp_scen;
+
+	if (inum) {
+		offset = sizeof(struct asrc_firmware_hdr);
+		easrc_priv->interp = (struct interp_params *)(data + offset);
+	}
+
+	if (pnum) {
+		offset = sizeof(struct asrc_firmware_hdr) +
+				inum * sizeof(struct interp_params);
+		easrc_priv->prefil = (struct prefil_params *)(data + offset);
+	}
+
+#ifdef DEBUG
+	fsl_easrc_dump_firmware(easrc);
+#endif
+
+	return 0;
+}
+
+static irqreturn_t fsl_easrc_isr(int irq, void *dev_id)
+{
+	struct fsl_asrc *easrc = (struct fsl_asrc *)dev_id;
+	struct device *dev = &easrc->pdev->dev;
+	int val;
+
+	regmap_read(easrc->regmap, REG_EASRC_IRQF, &val);
+
+	if (val & EASRC_IRQF_OER_MASK)
+		dev_dbg(dev, "output FIFO underflow\n");
+
+	if (val & EASRC_IRQF_IFO_MASK)
+		dev_dbg(dev, "input FIFO overflow\n");
+
+	return IRQ_HANDLED;
+}
+
+static int fsl_easrc_get_fifo_addr(u8 dir, enum asrc_pair_index index)
+{
+	return REG_EASRC_FIFO(dir, index);
+}
+
+static const struct of_device_id fsl_easrc_dt_ids[] = {
+	{ .compatible = "fsl,imx8mn-easrc",},
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_easrc_dt_ids);
+
+static int fsl_easrc_probe(struct platform_device *pdev)
+{
+	struct fsl_easrc_priv *easrc_priv;
+	struct device *dev = &pdev->dev;
+	struct fsl_asrc *easrc;
+	struct resource *res;
+	struct device_node *np;
+	void __iomem *regs;
+	u32 asrc_fmt = 0;
+	int ret, irq;
+
+	easrc = devm_kzalloc(dev, sizeof(*easrc), GFP_KERNEL);
+	if (!easrc)
+		return -ENOMEM;
+
+	easrc_priv = devm_kzalloc(dev, sizeof(*easrc_priv), GFP_KERNEL);
+	if (!easrc_priv)
+		return -ENOMEM;
+
+	easrc->pdev = pdev;
+	easrc->private = easrc_priv;
+	np = dev->of_node;
+
+	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	easrc->paddr = res->start;
+
+	easrc->regmap = devm_regmap_init_mmio(dev, regs, &fsl_easrc_regmap_config);
+	if (IS_ERR(easrc->regmap)) {
+		dev_err(dev, "failed to init regmap");
+		return PTR_ERR(easrc->regmap);
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = devm_request_irq(&pdev->dev, irq, fsl_easrc_isr, 0,
+			       dev_name(dev), easrc);
+	if (ret) {
+		dev_err(dev, "failed to claim irq %u: %d\n", irq, ret);
+		return ret;
+	}
+
+	easrc->mem_clk = devm_clk_get(dev, "mem");
+	if (IS_ERR(easrc->mem_clk)) {
+		dev_err(dev, "failed to get mem clock\n");
+		return PTR_ERR(easrc->mem_clk);
+	}
+
+	/* Set default value */
+	easrc->channel_avail = 32;
+	easrc->get_dma_channel = fsl_easrc_get_dma_channel;
+	easrc->request_pair = fsl_easrc_request_context;
+	easrc->release_pair = fsl_easrc_release_context;
+	easrc->get_fifo_addr = fsl_easrc_get_fifo_addr;
+	easrc->pair_priv_size = sizeof(struct fsl_easrc_ctx_priv);
+
+	easrc_priv->rs_num_taps = EASRC_RS_32_TAPS;
+	easrc_priv->const_coeff = 0x3FF0000000000000;
+
+	ret = of_property_read_u32(np, "fsl,asrc-rate", &easrc->asrc_rate);
+	if (ret) {
+		dev_err(dev, "failed to asrc rate\n");
+		return ret;
+	}
+
+	ret = of_property_read_u32(np, "fsl,asrc-format", &asrc_fmt);
+	easrc->asrc_format = (__force snd_pcm_format_t)asrc_fmt;
+	if (ret) {
+		dev_err(dev, "failed to asrc format\n");
+		return ret;
+	}
+
+	if (!(FSL_EASRC_FORMATS & (pcm_format_to_bits(easrc->asrc_format)))) {
+		dev_warn(dev, "unsupported format, switching to S24_LE\n");
+		easrc->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+	}
+
+	ret = of_property_read_string(np, "firmware-name",
+				      &easrc_priv->fw_name);
+	if (ret) {
+		dev_err(dev, "failed to get firmware name\n");
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, easrc);
+	pm_runtime_enable(dev);
+
+	spin_lock_init(&easrc->lock);
+
+	regcache_cache_only(easrc->regmap, true);
+
+	ret = devm_snd_soc_register_component(dev, &fsl_easrc_component,
+					      &fsl_easrc_dai, 1);
+	if (ret) {
+		dev_err(dev, "failed to register ASoC DAI\n");
+		goto err_pm_disable;
+	}
+
+	ret = devm_snd_soc_register_component(dev, &fsl_asrc_component,
+					      NULL, 0);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register ASoC platform\n");
+		goto err_pm_disable;
+	}
+
+	return 0;
+
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	return ret;
+}
+
+static int fsl_easrc_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static __maybe_unused int fsl_easrc_runtime_suspend(struct device *dev)
+{
+	struct fsl_asrc *easrc = dev_get_drvdata(dev);
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	unsigned long lock_flags;
+
+	regcache_cache_only(easrc->regmap, true);
+
+	clk_disable_unprepare(easrc->mem_clk);
+
+	spin_lock_irqsave(&easrc->lock, lock_flags);
+	easrc_priv->firmware_loaded = 0;
+	spin_unlock_irqrestore(&easrc->lock, lock_flags);
+
+	return 0;
+}
+
+static __maybe_unused int fsl_easrc_runtime_resume(struct device *dev)
+{
+	struct fsl_asrc *easrc = dev_get_drvdata(dev);
+	struct fsl_easrc_priv *easrc_priv = easrc->private;
+	struct fsl_easrc_ctx_priv *ctx_priv;
+	struct fsl_asrc_pair *ctx;
+	unsigned long lock_flags;
+	int ret;
+	int i;
+
+	ret = clk_prepare_enable(easrc->mem_clk);
+	if (ret)
+		return ret;
+
+	regcache_cache_only(easrc->regmap, false);
+	regcache_mark_dirty(easrc->regmap);
+	regcache_sync(easrc->regmap);
+
+	spin_lock_irqsave(&easrc->lock, lock_flags);
+	if (easrc_priv->firmware_loaded) {
+		spin_unlock_irqrestore(&easrc->lock, lock_flags);
+		goto skip_load;
+	}
+	easrc_priv->firmware_loaded = 1;
+	spin_unlock_irqrestore(&easrc->lock, lock_flags);
+
+	ret = fsl_easrc_get_firmware(easrc);
+	if (ret) {
+		dev_err(dev, "failed to get firmware\n");
+		goto disable_mem_clk;
+	}
+
+	/*
+	 * Write Resampling Coefficients
+	 * The coefficient RAM must be configured prior to beginning of
+	 * any context processing within the ASRC
+	 */
+	ret = fsl_easrc_resampler_config(easrc);
+	if (ret) {
+		dev_err(dev, "resampler config failed\n");
+		goto disable_mem_clk;
+	}
+
+	for (i = ASRC_PAIR_A; i < EASRC_CTX_MAX_NUM; i++) {
+		ctx = easrc->pair[i];
+		if (!ctx)
+			continue;
+
+		ctx_priv = ctx->private;
+		fsl_easrc_set_rs_ratio(ctx);
+		ctx_priv->out_missed_sample = ctx_priv->in_filled_sample *
+					      ctx_priv->out_params.sample_rate /
+					      ctx_priv->in_params.sample_rate;
+		if (ctx_priv->in_filled_sample * ctx_priv->out_params.sample_rate
+		    % ctx_priv->in_params.sample_rate != 0)
+			ctx_priv->out_missed_sample += 1;
+
+		ret = fsl_easrc_write_pf_coeff_mem(easrc, i,
+						   ctx_priv->st1_coeff,
+						   ctx_priv->st1_num_taps,
+						   ctx_priv->st1_addexp);
+		if (ret)
+			goto disable_mem_clk;
+
+		ret = fsl_easrc_write_pf_coeff_mem(easrc, i,
+						   ctx_priv->st2_coeff,
+						   ctx_priv->st2_num_taps,
+						   ctx_priv->st2_addexp);
+		if (ret)
+			goto disable_mem_clk;
+	}
+
+skip_load:
+	return 0;
+
+disable_mem_clk:
+	clk_disable_unprepare(easrc->mem_clk);
+	return ret;
+}
+
+static const struct dev_pm_ops fsl_easrc_pm_ops = {
+	SET_RUNTIME_PM_OPS(fsl_easrc_runtime_suspend,
+			   fsl_easrc_runtime_resume,
+			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static struct platform_driver fsl_easrc_driver = {
+	.probe = fsl_easrc_probe,
+	.remove = fsl_easrc_remove,
+	.driver = {
+		.name = "fsl-easrc",
+		.pm = &fsl_easrc_pm_ops,
+		.of_match_table = fsl_easrc_dt_ids,
+	},
+};
+module_platform_driver(fsl_easrc_driver);
+
+MODULE_DESCRIPTION("NXP Enhanced Asynchronous Sample Rate (eASRC) driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/fsl_easrc.h b/sound/soc/fsl/fsl_easrc.h
new file mode 100644
index 000000000..7c70dac52
--- /dev/null
+++ b/sound/soc/fsl/fsl_easrc.h
@@ -0,0 +1,651 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2019 NXP
+ */
+
+#ifndef _FSL_EASRC_H
+#define _FSL_EASRC_H
+
+#include <sound/asound.h>
+#include <linux/dma/imx-dma.h>
+
+#include "fsl_asrc_common.h"
+
+/* EASRC Register Map */
+
+/* ASRC Input Write FIFO */
+#define REG_EASRC_WRFIFO(ctx)		(0x000 + 4 * (ctx))
+/* ASRC Output Read FIFO */
+#define REG_EASRC_RDFIFO(ctx)		(0x010 + 4 * (ctx))
+/* ASRC Context Control */
+#define REG_EASRC_CC(ctx)		(0x020 + 4 * (ctx))
+/* ASRC Context Control Extended 1 */
+#define REG_EASRC_CCE1(ctx)		(0x030 + 4 * (ctx))
+/* ASRC Context Control Extended 2 */
+#define REG_EASRC_CCE2(ctx)		(0x040 + 4 * (ctx))
+/* ASRC Control Input Access */
+#define REG_EASRC_CIA(ctx)		(0x050 + 4 * (ctx))
+/* ASRC Datapath Processor Control Slot0 */
+#define REG_EASRC_DPCS0R0(ctx)		(0x060 + 4 * (ctx))
+#define REG_EASRC_DPCS0R1(ctx)		(0x070 + 4 * (ctx))
+#define REG_EASRC_DPCS0R2(ctx)		(0x080 + 4 * (ctx))
+#define REG_EASRC_DPCS0R3(ctx)		(0x090 + 4 * (ctx))
+/* ASRC Datapath Processor Control Slot1 */
+#define REG_EASRC_DPCS1R0(ctx)		(0x0A0 + 4 * (ctx))
+#define REG_EASRC_DPCS1R1(ctx)		(0x0B0 + 4 * (ctx))
+#define REG_EASRC_DPCS1R2(ctx)		(0x0C0 + 4 * (ctx))
+#define REG_EASRC_DPCS1R3(ctx)		(0x0D0 + 4 * (ctx))
+/* ASRC Context Output Control */
+#define REG_EASRC_COC(ctx)		(0x0E0 + 4 * (ctx))
+/* ASRC Control Output Access */
+#define REG_EASRC_COA(ctx)		(0x0F0 + 4 * (ctx))
+/* ASRC Sample FIFO Status */
+#define REG_EASRC_SFS(ctx)		(0x100 + 4 * (ctx))
+/* ASRC Resampling Ratio Low */
+#define REG_EASRC_RRL(ctx)		(0x110 + 8 * (ctx))
+/* ASRC Resampling Ratio High */
+#define REG_EASRC_RRH(ctx)		(0x114 + 8 * (ctx))
+/* ASRC Resampling Ratio Update Control */
+#define REG_EASRC_RUC(ctx)		(0x130 + 4 * (ctx))
+/* ASRC Resampling Ratio Update Rate */
+#define REG_EASRC_RUR(ctx)		(0x140 + 4 * (ctx))
+/* ASRC Resampling Center Tap Coefficient Low */
+#define REG_EASRC_RCTCL			(0x150)
+/* ASRC Resampling Center Tap Coefficient High */
+#define REG_EASRC_RCTCH			(0x154)
+/* ASRC Prefilter Coefficient FIFO */
+#define REG_EASRC_PCF(ctx)		(0x160 + 4 * (ctx))
+/* ASRC Context Resampling Coefficient Memory */
+#define REG_EASRC_CRCM			0x170
+/* ASRC Context Resampling Coefficient Control*/
+#define REG_EASRC_CRCC			0x174
+/* ASRC Interrupt Control */
+#define REG_EASRC_IRQC			0x178
+/* ASRC Interrupt Status Flags */
+#define REG_EASRC_IRQF			0x17C
+/* ASRC Channel Status 0 */
+#define REG_EASRC_CS0(ctx)		(0x180 + 4 * (ctx))
+/* ASRC Channel Status 1 */
+#define REG_EASRC_CS1(ctx)		(0x190 + 4 * (ctx))
+/* ASRC Channel Status 2 */
+#define REG_EASRC_CS2(ctx)		(0x1A0 + 4 * (ctx))
+/* ASRC Channel Status 3 */
+#define REG_EASRC_CS3(ctx)		(0x1B0 + 4 * (ctx))
+/* ASRC Channel Status 4 */
+#define REG_EASRC_CS4(ctx)		(0x1C0 + 4 * (ctx))
+/* ASRC Channel Status 5 */
+#define REG_EASRC_CS5(ctx)		(0x1D0 + 4 * (ctx))
+/* ASRC Debug Control Register */
+#define REG_EASRC_DBGC			0x1E0
+/* ASRC Debug Status Register */
+#define REG_EASRC_DBGS			0x1E4
+
+#define REG_EASRC_FIFO(x, ctx)		(x == IN ? REG_EASRC_WRFIFO(ctx) \
+						: REG_EASRC_RDFIFO(ctx))
+
+/* ASRC Context Control (CC) */
+#define EASRC_CC_EN_SHIFT		31
+#define EASRC_CC_EN_MASK		BIT(EASRC_CC_EN_SHIFT)
+#define EASRC_CC_EN			BIT(EASRC_CC_EN_SHIFT)
+#define EASRC_CC_STOP_SHIFT		29
+#define EASRC_CC_STOP_MASK		BIT(EASRC_CC_STOP_SHIFT)
+#define EASRC_CC_STOP			BIT(EASRC_CC_STOP_SHIFT)
+#define EASRC_CC_FWMDE_SHIFT		28
+#define EASRC_CC_FWMDE_MASK		BIT(EASRC_CC_FWMDE_SHIFT)
+#define EASRC_CC_FWMDE			BIT(EASRC_CC_FWMDE_SHIFT)
+#define EASRC_CC_FIFO_WTMK_SHIFT	16
+#define EASRC_CC_FIFO_WTMK_WIDTH	7
+#define EASRC_CC_FIFO_WTMK_MASK		((BIT(EASRC_CC_FIFO_WTMK_WIDTH) - 1) \
+					 << EASRC_CC_FIFO_WTMK_SHIFT)
+#define EASRC_CC_FIFO_WTMK(v)		(((v) << EASRC_CC_FIFO_WTMK_SHIFT) \
+					 & EASRC_CC_FIFO_WTMK_MASK)
+#define EASRC_CC_SAMPLE_POS_SHIFT	11
+#define EASRC_CC_SAMPLE_POS_WIDTH	5
+#define EASRC_CC_SAMPLE_POS_MASK	((BIT(EASRC_CC_SAMPLE_POS_WIDTH) - 1) \
+					 << EASRC_CC_SAMPLE_POS_SHIFT)
+#define EASRC_CC_SAMPLE_POS(v)		(((v) << EASRC_CC_SAMPLE_POS_SHIFT) \
+					 & EASRC_CC_SAMPLE_POS_MASK)
+#define EASRC_CC_ENDIANNESS_SHIFT	10
+#define EASRC_CC_ENDIANNESS_MASK	BIT(EASRC_CC_ENDIANNESS_SHIFT)
+#define EASRC_CC_ENDIANNESS		BIT(EASRC_CC_ENDIANNESS_SHIFT)
+#define EASRC_CC_BPS_SHIFT		8
+#define EASRC_CC_BPS_WIDTH		2
+#define EASRC_CC_BPS_MASK		((BIT(EASRC_CC_BPS_WIDTH) - 1) \
+					 << EASRC_CC_BPS_SHIFT)
+#define EASRC_CC_BPS(v)			(((v) << EASRC_CC_BPS_SHIFT) \
+					 & EASRC_CC_BPS_MASK)
+#define EASRC_CC_FMT_SHIFT		7
+#define EASRC_CC_FMT_MASK		BIT(EASRC_CC_FMT_SHIFT)
+#define EASRC_CC_FMT			BIT(EASRC_CC_FMT_SHIFT)
+#define EASRC_CC_INSIGN_SHIFT		6
+#define EASRC_CC_INSIGN_MASK		BIT(EASRC_CC_INSIGN_SHIFT)
+#define EASRC_CC_INSIGN			BIT(EASRC_CC_INSIGN_SHIFT)
+#define EASRC_CC_CHEN_SHIFT		0
+#define EASRC_CC_CHEN_WIDTH		5
+#define EASRC_CC_CHEN_MASK		((BIT(EASRC_CC_CHEN_WIDTH) - 1) \
+					 << EASRC_CC_CHEN_SHIFT)
+#define EASRC_CC_CHEN(v)		(((v) << EASRC_CC_CHEN_SHIFT) \
+					 & EASRC_CC_CHEN_MASK)
+
+/* ASRC Context Control Extended 1 (CCE1) */
+#define EASRC_CCE1_COEF_WS_SHIFT	25
+#define EASRC_CCE1_COEF_WS_MASK		BIT(EASRC_CCE1_COEF_WS_SHIFT)
+#define EASRC_CCE1_COEF_WS		BIT(EASRC_CCE1_COEF_WS_SHIFT)
+#define EASRC_CCE1_COEF_MEM_RST_SHIFT	24
+#define EASRC_CCE1_COEF_MEM_RST_MASK	BIT(EASRC_CCE1_COEF_MEM_RST_SHIFT)
+#define EASRC_CCE1_COEF_MEM_RST		BIT(EASRC_CCE1_COEF_MEM_RST_SHIFT)
+#define EASRC_CCE1_PF_EXP_SHIFT		16
+#define EASRC_CCE1_PF_EXP_WIDTH		8
+#define EASRC_CCE1_PF_EXP_MASK		((BIT(EASRC_CCE1_PF_EXP_WIDTH) - 1) \
+					 << EASRC_CCE1_PF_EXP_SHIFT)
+#define EASRC_CCE1_PF_EXP(v)		(((v) << EASRC_CCE1_PF_EXP_SHIFT) \
+					 & EASRC_CCE1_PF_EXP_MASK)
+#define EASRC_CCE1_PF_ST1_WBFP_SHIFT	9
+#define EASRC_CCE1_PF_ST1_WBFP_MASK	BIT(EASRC_CCE1_PF_ST1_WBFP_SHIFT)
+#define EASRC_CCE1_PF_ST1_WBFP		BIT(EASRC_CCE1_PF_ST1_WBFP_SHIFT)
+#define EASRC_CCE1_PF_TSEN_SHIFT	8
+#define EASRC_CCE1_PF_TSEN_MASK		BIT(EASRC_CCE1_PF_TSEN_SHIFT)
+#define EASRC_CCE1_PF_TSEN		BIT(EASRC_CCE1_PF_TSEN_SHIFT)
+#define EASRC_CCE1_RS_BYPASS_SHIFT	7
+#define EASRC_CCE1_RS_BYPASS_MASK	BIT(EASRC_CCE1_RS_BYPASS_SHIFT)
+#define EASRC_CCE1_RS_BYPASS		BIT(EASRC_CCE1_RS_BYPASS_SHIFT)
+#define EASRC_CCE1_PF_BYPASS_SHIFT	6
+#define EASRC_CCE1_PF_BYPASS_MASK	BIT(EASRC_CCE1_PF_BYPASS_SHIFT)
+#define EASRC_CCE1_PF_BYPASS		BIT(EASRC_CCE1_PF_BYPASS_SHIFT)
+#define EASRC_CCE1_RS_STOP_SHIFT	5
+#define EASRC_CCE1_RS_STOP_MASK		BIT(EASRC_CCE1_RS_STOP_SHIFT)
+#define EASRC_CCE1_RS_STOP		BIT(EASRC_CCE1_RS_STOP_SHIFT)
+#define EASRC_CCE1_PF_STOP_SHIFT	4
+#define EASRC_CCE1_PF_STOP_MASK		BIT(EASRC_CCE1_PF_STOP_SHIFT)
+#define EASRC_CCE1_PF_STOP		BIT(EASRC_CCE1_PF_STOP_SHIFT)
+#define EASRC_CCE1_RS_INIT_SHIFT	2
+#define EASRC_CCE1_RS_INIT_WIDTH	2
+#define EASRC_CCE1_RS_INIT_MASK		((BIT(EASRC_CCE1_RS_INIT_WIDTH) - 1) \
+					 << EASRC_CCE1_RS_INIT_SHIFT)
+#define EASRC_CCE1_RS_INIT(v)		(((v) << EASRC_CCE1_RS_INIT_SHIFT) \
+					 & EASRC_CCE1_RS_INIT_MASK)
+#define EASRC_CCE1_PF_INIT_SHIFT	0
+#define EASRC_CCE1_PF_INIT_WIDTH	2
+#define EASRC_CCE1_PF_INIT_MASK		((BIT(EASRC_CCE1_PF_INIT_WIDTH) - 1) \
+					 << EASRC_CCE1_PF_INIT_SHIFT)
+#define EASRC_CCE1_PF_INIT(v)		(((v) << EASRC_CCE1_PF_INIT_SHIFT) \
+					 & EASRC_CCE1_PF_INIT_MASK)
+
+/* ASRC Context Control Extended 2 (CCE2) */
+#define EASRC_CCE2_ST2_TAPS_SHIFT	16
+#define EASRC_CCE2_ST2_TAPS_WIDTH	9
+#define EASRC_CCE2_ST2_TAPS_MASK	((BIT(EASRC_CCE2_ST2_TAPS_WIDTH) - 1) \
+					 << EASRC_CCE2_ST2_TAPS_SHIFT)
+#define EASRC_CCE2_ST2_TAPS(v)		(((v) << EASRC_CCE2_ST2_TAPS_SHIFT) \
+					 & EASRC_CCE2_ST2_TAPS_MASK)
+#define EASRC_CCE2_ST1_TAPS_SHIFT	0
+#define EASRC_CCE2_ST1_TAPS_WIDTH	9
+#define EASRC_CCE2_ST1_TAPS_MASK	((BIT(EASRC_CCE2_ST1_TAPS_WIDTH) - 1) \
+					 << EASRC_CCE2_ST1_TAPS_SHIFT)
+#define EASRC_CCE2_ST1_TAPS(v)		(((v) << EASRC_CCE2_ST1_TAPS_SHIFT) \
+					 & EASRC_CCE2_ST1_TAPS_MASK)
+
+/* ASRC Control Input Access (CIA) */
+#define EASRC_CIA_ITER_SHIFT		16
+#define EASRC_CIA_ITER_WIDTH		6
+#define EASRC_CIA_ITER_MASK		((BIT(EASRC_CIA_ITER_WIDTH) - 1) \
+					 << EASRC_CIA_ITER_SHIFT)
+#define EASRC_CIA_ITER(v)		(((v) << EASRC_CIA_ITER_SHIFT) \
+					 & EASRC_CIA_ITER_MASK)
+#define EASRC_CIA_GRLEN_SHIFT		8
+#define EASRC_CIA_GRLEN_WIDTH		6
+#define EASRC_CIA_GRLEN_MASK		((BIT(EASRC_CIA_GRLEN_WIDTH) - 1) \
+					 << EASRC_CIA_GRLEN_SHIFT)
+#define EASRC_CIA_GRLEN(v)		(((v) << EASRC_CIA_GRLEN_SHIFT) \
+					 & EASRC_CIA_GRLEN_MASK)
+#define EASRC_CIA_ACCLEN_SHIFT		0
+#define EASRC_CIA_ACCLEN_WIDTH		6
+#define EASRC_CIA_ACCLEN_MASK		((BIT(EASRC_CIA_ACCLEN_WIDTH) - 1) \
+					 << EASRC_CIA_ACCLEN_SHIFT)
+#define EASRC_CIA_ACCLEN(v)		(((v) << EASRC_CIA_ACCLEN_SHIFT) \
+					 & EASRC_CIA_ACCLEN_MASK)
+
+/* ASRC Datapath Processor Control Slot0 Register0 (DPCS0R0) */
+#define EASRC_DPCS0R0_MAXCH_SHIFT	24
+#define EASRC_DPCS0R0_MAXCH_WIDTH	5
+#define EASRC_DPCS0R0_MAXCH_MASK	((BIT(EASRC_DPCS0R0_MAXCH_WIDTH) - 1) \
+					 << EASRC_DPCS0R0_MAXCH_SHIFT)
+#define EASRC_DPCS0R0_MAXCH(v)		(((v) << EASRC_DPCS0R0_MAXCH_SHIFT) \
+					 & EASRC_DPCS0R0_MAXCH_MASK)
+#define EASRC_DPCS0R0_MINCH_SHIFT	16
+#define EASRC_DPCS0R0_MINCH_WIDTH	5
+#define EASRC_DPCS0R0_MINCH_MASK	((BIT(EASRC_DPCS0R0_MINCH_WIDTH) - 1) \
+					 << EASRC_DPCS0R0_MINCH_SHIFT)
+#define EASRC_DPCS0R0_MINCH(v)		(((v) << EASRC_DPCS0R0_MINCH_SHIFT) \
+					 & EASRC_DPCS0R0_MINCH_MASK)
+#define EASRC_DPCS0R0_NUMCH_SHIFT	8
+#define EASRC_DPCS0R0_NUMCH_WIDTH	5
+#define EASRC_DPCS0R0_NUMCH_MASK	((BIT(EASRC_DPCS0R0_NUMCH_WIDTH) - 1) \
+					 << EASRC_DPCS0R0_NUMCH_SHIFT)
+#define EASRC_DPCS0R0_NUMCH(v)		(((v) << EASRC_DPCS0R0_NUMCH_SHIFT) \
+					 & EASRC_DPCS0R0_NUMCH_MASK)
+#define EASRC_DPCS0R0_CTXNUM_SHIFT	1
+#define EASRC_DPCS0R0_CTXNUM_WIDTH	2
+#define EASRC_DPCS0R0_CTXNUM_MASK	((BIT(EASRC_DPCS0R0_CTXNUM_WIDTH) - 1) \
+					 << EASRC_DPCS0R0_CTXNUM_SHIFT)
+#define EASRC_DPCS0R0_CTXNUM(v)		(((v) << EASRC_DPCS0R0_CTXNUM_SHIFT) \
+					 & EASRC_DPCS0R0_CTXNUM_MASK)
+#define EASRC_DPCS0R0_EN_SHIFT		0
+#define EASRC_DPCS0R0_EN_MASK		BIT(EASRC_DPCS0R0_EN_SHIFT)
+#define EASRC_DPCS0R0_EN		BIT(EASRC_DPCS0R0_EN_SHIFT)
+
+/* ASRC Datapath Processor Control Slot0 Register1 (DPCS0R1) */
+#define EASRC_DPCS0R1_ST1_EXP_SHIFT	0
+#define EASRC_DPCS0R1_ST1_EXP_WIDTH	13
+#define EASRC_DPCS0R1_ST1_EXP_MASK	((BIT(EASRC_DPCS0R1_ST1_EXP_WIDTH) - 1) \
+					 << EASRC_DPCS0R1_ST1_EXP_SHIFT)
+#define EASRC_DPCS0R1_ST1_EXP(v)	(((v) << EASRC_DPCS0R1_ST1_EXP_SHIFT) \
+					 & EASRC_DPCS0R1_ST1_EXP_MASK)
+
+/* ASRC Datapath Processor Control Slot0 Register2 (DPCS0R2) */
+#define EASRC_DPCS0R2_ST1_MA_SHIFT	16
+#define EASRC_DPCS0R2_ST1_MA_WIDTH	13
+#define EASRC_DPCS0R2_ST1_MA_MASK	((BIT(EASRC_DPCS0R2_ST1_MA_WIDTH) - 1) \
+					 << EASRC_DPCS0R2_ST1_MA_SHIFT)
+#define EASRC_DPCS0R2_ST1_MA(v)		(((v) << EASRC_DPCS0R2_ST1_MA_SHIFT) \
+					 & EASRC_DPCS0R2_ST1_MA_MASK)
+#define EASRC_DPCS0R2_ST1_SA_SHIFT	0
+#define EASRC_DPCS0R2_ST1_SA_WIDTH	13
+#define EASRC_DPCS0R2_ST1_SA_MASK	((BIT(EASRC_DPCS0R2_ST1_SA_WIDTH) - 1) \
+					 << EASRC_DPCS0R2_ST1_SA_SHIFT)
+#define EASRC_DPCS0R2_ST1_SA(v)		(((v) << EASRC_DPCS0R2_ST1_SA_SHIFT) \
+					 & EASRC_DPCS0R2_ST1_SA_MASK)
+
+/* ASRC Datapath Processor Control Slot0 Register3 (DPCS0R3) */
+#define EASRC_DPCS0R3_ST2_MA_SHIFT	16
+#define EASRC_DPCS0R3_ST2_MA_WIDTH	13
+#define EASRC_DPCS0R3_ST2_MA_MASK	((BIT(EASRC_DPCS0R3_ST2_MA_WIDTH) - 1) \
+					 << EASRC_DPCS0R3_ST2_MA_SHIFT)
+#define EASRC_DPCS0R3_ST2_MA(v)		(((v) << EASRC_DPCS0R3_ST2_MA_SHIFT) \
+					 & EASRC_DPCS0R3_ST2_MA_MASK)
+#define EASRC_DPCS0R3_ST2_SA_SHIFT	0
+#define EASRC_DPCS0R3_ST2_SA_WIDTH	13
+#define EASRC_DPCS0R3_ST2_SA_MASK	((BIT(EASRC_DPCS0R3_ST2_SA_WIDTH) - 1) \
+					 << EASRC_DPCS0R3_ST2_SA_SHIFT)
+#define EASRC_DPCS0R3_ST2_SA(v)		(((v) << EASRC_DPCS0R3_ST2_SA_SHIFT) \
+						 & EASRC_DPCS0R3_ST2_SA_MASK)
+
+/* ASRC Context Output Control (COC) */
+#define EASRC_COC_FWMDE_SHIFT		28
+#define EASRC_COC_FWMDE_MASK		BIT(EASRC_COC_FWMDE_SHIFT)
+#define EASRC_COC_FWMDE			BIT(EASRC_COC_FWMDE_SHIFT)
+#define EASRC_COC_FIFO_WTMK_SHIFT	16
+#define EASRC_COC_FIFO_WTMK_WIDTH	7
+#define EASRC_COC_FIFO_WTMK_MASK	((BIT(EASRC_COC_FIFO_WTMK_WIDTH) - 1) \
+					 << EASRC_COC_FIFO_WTMK_SHIFT)
+#define EASRC_COC_FIFO_WTMK(v)		(((v) << EASRC_COC_FIFO_WTMK_SHIFT) \
+					 & EASRC_COC_FIFO_WTMK_MASK)
+#define EASRC_COC_SAMPLE_POS_SHIFT	11
+#define EASRC_COC_SAMPLE_POS_WIDTH	5
+#define EASRC_COC_SAMPLE_POS_MASK	((BIT(EASRC_COC_SAMPLE_POS_WIDTH) - 1) \
+					 << EASRC_COC_SAMPLE_POS_SHIFT)
+#define EASRC_COC_SAMPLE_POS(v)		(((v) << EASRC_COC_SAMPLE_POS_SHIFT) \
+					 & EASRC_COC_SAMPLE_POS_MASK)
+#define EASRC_COC_ENDIANNESS_SHIFT	10
+#define EASRC_COC_ENDIANNESS_MASK	BIT(EASRC_COC_ENDIANNESS_SHIFT)
+#define EASRC_COC_ENDIANNESS		BIT(EASRC_COC_ENDIANNESS_SHIFT)
+#define EASRC_COC_BPS_SHIFT		8
+#define EASRC_COC_BPS_WIDTH		2
+#define EASRC_COC_BPS_MASK		((BIT(EASRC_COC_BPS_WIDTH) - 1) \
+					 << EASRC_COC_BPS_SHIFT)
+#define EASRC_COC_BPS(v)		(((v) << EASRC_COC_BPS_SHIFT) \
+					 & EASRC_COC_BPS_MASK)
+#define EASRC_COC_FMT_SHIFT		7
+#define EASRC_COC_FMT_MASK		BIT(EASRC_COC_FMT_SHIFT)
+#define EASRC_COC_FMT			BIT(EASRC_COC_FMT_SHIFT)
+#define EASRC_COC_OUTSIGN_SHIFT		6
+#define EASRC_COC_OUTSIGN_MASK		BIT(EASRC_COC_OUTSIGN_SHIFT)
+#define EASRC_COC_OUTSIGN_OUT		BIT(EASRC_COC_OUTSIGN_SHIFT)
+#define EASRC_COC_IEC_VDATA_SHIFT	2
+#define EASRC_COC_IEC_VDATA_MASK	BIT(EASRC_COC_IEC_VDATA_SHIFT)
+#define EASRC_COC_IEC_VDATA		BIT(EASRC_COC_IEC_VDATA_SHIFT)
+#define EASRC_COC_IEC_EN_SHIFT		1
+#define EASRC_COC_IEC_EN_MASK		BIT(EASRC_COC_IEC_EN_SHIFT)
+#define EASRC_COC_IEC_EN		BIT(EASRC_COC_IEC_EN_SHIFT)
+#define EASRC_COC_DITHER_EN_SHIFT	0
+#define EASRC_COC_DITHER_EN_MASK	BIT(EASRC_COC_DITHER_EN_SHIFT)
+#define EASRC_COC_DITHER_EN		BIT(EASRC_COC_DITHER_EN_SHIFT)
+
+/* ASRC Control Output Access (COA) */
+#define EASRC_COA_ITER_SHIFT		16
+#define EASRC_COA_ITER_WIDTH		6
+#define EASRC_COA_ITER_MASK		((BIT(EASRC_COA_ITER_WIDTH) - 1) \
+					 << EASRC_COA_ITER_SHIFT)
+#define EASRC_COA_ITER(v)		(((v) << EASRC_COA_ITER_SHIFT) \
+					 & EASRC_COA_ITER_MASK)
+#define EASRC_COA_GRLEN_SHIFT		8
+#define EASRC_COA_GRLEN_WIDTH		6
+#define EASRC_COA_GRLEN_MASK		((BIT(EASRC_COA_GRLEN_WIDTH) - 1) \
+					 << EASRC_COA_GRLEN_SHIFT)
+#define EASRC_COA_GRLEN(v)		(((v) << EASRC_COA_GRLEN_SHIFT) \
+					 & EASRC_COA_GRLEN_MASK)
+#define EASRC_COA_ACCLEN_SHIFT		0
+#define EASRC_COA_ACCLEN_WIDTH		6
+#define EASRC_COA_ACCLEN_MASK		((BIT(EASRC_COA_ACCLEN_WIDTH) - 1) \
+					 << EASRC_COA_ACCLEN_SHIFT)
+#define EASRC_COA_ACCLEN(v)		(((v) << EASRC_COA_ACCLEN_SHIFT) \
+					 & EASRC_COA_ACCLEN_MASK)
+
+/* ASRC Sample FIFO Status (SFS) */
+#define EASRC_SFS_IWTMK_SHIFT		23
+#define EASRC_SFS_IWTMK_MASK		BIT(EASRC_SFS_IWTMK_SHIFT)
+#define EASRC_SFS_IWTMK			BIT(EASRC_SFS_IWTMK_SHIFT)
+#define EASRC_SFS_NSGI_SHIFT		16
+#define EASRC_SFS_NSGI_WIDTH		7
+#define EASRC_SFS_NSGI_MASK		((BIT(EASRC_SFS_NSGI_WIDTH) - 1) \
+					 << EASRC_SFS_NSGI_SHIFT)
+#define EASRC_SFS_NSGI(v)		(((v) << EASRC_SFS_NSGI_SHIFT) \
+					 & EASRC_SFS_NSGI_MASK)
+#define EASRC_SFS_OWTMK_SHIFT		7
+#define EASRC_SFS_OWTMK_MASK		BIT(EASRC_SFS_OWTMK_SHIFT)
+#define EASRC_SFS_OWTMK			BIT(EASRC_SFS_OWTMK_SHIFT)
+#define EASRC_SFS_NSGO_SHIFT		0
+#define EASRC_SFS_NSGO_WIDTH		7
+#define EASRC_SFS_NSGO_MASK		((BIT(EASRC_SFS_NSGO_WIDTH) - 1) \
+					 << EASRC_SFS_NSGO_SHIFT)
+#define EASRC_SFS_NSGO(v)		(((v) << EASRC_SFS_NSGO_SHIFT) \
+					 & EASRC_SFS_NSGO_MASK)
+
+/* ASRC Resampling Ratio Low (RRL) */
+#define EASRC_RRL_RS_RL_SHIFT		0
+#define EASRC_RRL_RS_RL_WIDTH		32
+#define EASRC_RRL_RS_RL(v)		((v) << EASRC_RRL_RS_RL_SHIFT)
+
+/* ASRC Resampling Ratio High (RRH) */
+#define EASRC_RRH_RS_VLD_SHIFT		31
+#define EASRC_RRH_RS_VLD_MASK		BIT(EASRC_RRH_RS_VLD_SHIFT)
+#define EASRC_RRH_RS_VLD		BIT(EASRC_RRH_RS_VLD_SHIFT)
+#define EASRC_RRH_RS_RH_SHIFT		0
+#define EASRC_RRH_RS_RH_WIDTH		12
+#define EASRC_RRH_RS_RH_MASK		((BIT(EASRC_RRH_RS_RH_WIDTH) - 1) \
+					 << EASRC_RRH_RS_RH_SHIFT)
+#define EASRC_RRH_RS_RH(v)		(((v) << EASRC_RRH_RS_RH_SHIFT) \
+					 & EASRC_RRH_RS_RH_MASK)
+
+/* ASRC Resampling Ratio Update Control (RSUC) */
+#define EASRC_RSUC_RS_RM_SHIFT		0
+#define EASRC_RSUC_RS_RM_WIDTH		32
+#define EASRC_RSUC_RS_RM(v)		((v) << EASRC_RSUC_RS_RM_SHIFT)
+
+/* ASRC Resampling Ratio Update Rate (RRUR) */
+#define EASRC_RRUR_RRR_SHIFT		0
+#define EASRC_RRUR_RRR_WIDTH		31
+#define EASRC_RRUR_RRR_MASK		((BIT(EASRC_RRUR_RRR_WIDTH) - 1) \
+					 << EASRC_RRUR_RRR_SHIFT)
+#define EASRC_RRUR_RRR(v)		(((v) << EASRC_RRUR_RRR_SHIFT) \
+					 & EASRC_RRUR_RRR_MASK)
+
+/* ASRC Resampling Center Tap Coefficient Low (RCTCL) */
+#define EASRC_RCTCL_RS_CL_SHIFT		0
+#define EASRC_RCTCL_RS_CL_WIDTH		32
+#define EASRC_RCTCL_RS_CL(v)		((v) << EASRC_RCTCL_RS_CL_SHIFT)
+
+/* ASRC Resampling Center Tap Coefficient High (RCTCH) */
+#define EASRC_RCTCH_RS_CH_SHIFT		0
+#define EASRC_RCTCH_RS_CH_WIDTH		32
+#define EASRC_RCTCH_RS_CH(v)		((v) << EASRC_RCTCH_RS_CH_SHIFT)
+
+/* ASRC Prefilter Coefficient FIFO (PCF) */
+#define EASRC_PCF_CD_SHIFT		0
+#define EASRC_PCF_CD_WIDTH		32
+#define EASRC_PCF_CD(v)			((v) << EASRC_PCF_CD_SHIFT)
+
+/* ASRC Context Resampling Coefficient Memory (CRCM) */
+#define EASRC_CRCM_RS_CWD_SHIFT		0
+#define EASRC_CRCM_RS_CWD_WIDTH		32
+#define EASRC_CRCM_RS_CWD(v)		((v) << EASRC_CRCM_RS_CWD_SHIFT)
+
+/* ASRC Context Resampling Coefficient Control (CRCC) */
+#define EASRC_CRCC_RS_CA_SHIFT		16
+#define EASRC_CRCC_RS_CA_WIDTH		11
+#define EASRC_CRCC_RS_CA_MASK		((BIT(EASRC_CRCC_RS_CA_WIDTH) - 1) \
+					 << EASRC_CRCC_RS_CA_SHIFT)
+#define EASRC_CRCC_RS_CA(v)		(((v) << EASRC_CRCC_RS_CA_SHIFT) \
+					 & EASRC_CRCC_RS_CA_MASK)
+#define EASRC_CRCC_RS_TAPS_SHIFT	1
+#define EASRC_CRCC_RS_TAPS_WIDTH	2
+#define EASRC_CRCC_RS_TAPS_MASK		((BIT(EASRC_CRCC_RS_TAPS_WIDTH) - 1) \
+					 << EASRC_CRCC_RS_TAPS_SHIFT)
+#define EASRC_CRCC_RS_TAPS(v)		(((v) << EASRC_CRCC_RS_TAPS_SHIFT) \
+					 & EASRC_CRCC_RS_TAPS_MASK)
+#define EASRC_CRCC_RS_CPR_SHIFT		0
+#define EASRC_CRCC_RS_CPR_MASK		BIT(EASRC_CRCC_RS_CPR_SHIFT)
+#define EASRC_CRCC_RS_CPR		BIT(EASRC_CRCC_RS_CPR_SHIFT)
+
+/* ASRC Interrupt_Control (IC) */
+#define EASRC_IRQC_RSDM_SHIFT		8
+#define EASRC_IRQC_RSDM_WIDTH		4
+#define EASRC_IRQC_RSDM_MASK		((BIT(EASRC_IRQC_RSDM_WIDTH) - 1) \
+					 << EASRC_IRQC_RSDM_SHIFT)
+#define EASRC_IRQC_RSDM(v)		(((v) << EASRC_IRQC_RSDM_SHIFT) \
+					 & EASRC_IRQC_RSDM_MASK)
+#define EASRC_IRQC_OERM_SHIFT		4
+#define EASRC_IRQC_OERM_WIDTH		4
+#define EASRC_IRQC_OERM_MASK		((BIT(EASRC_IRQC_OERM_WIDTH) - 1) \
+					 << EASRC_IRQC_OERM_SHIFT)
+#define EASRC_IRQC_OERM(v)		(((v) << EASRC_IRQC_OERM_SHIFT) \
+					 & EASRC_IEQC_OERM_MASK)
+#define EASRC_IRQC_IOM_SHIFT		0
+#define EASRC_IRQC_IOM_WIDTH		4
+#define EASRC_IRQC_IOM_MASK		((BIT(EASRC_IRQC_IOM_WIDTH) - 1) \
+					 << EASRC_IRQC_IOM_SHIFT)
+#define EASRC_IRQC_IOM(v)		(((v) << EASRC_IRQC_IOM_SHIFT) \
+					 & EASRC_IRQC_IOM_MASK)
+
+/* ASRC Interrupt Status Flags (ISF) */
+#define EASRC_IRQF_RSD_SHIFT		8
+#define EASRC_IRQF_RSD_WIDTH		4
+#define EASRC_IRQF_RSD_MASK		((BIT(EASRC_IRQF_RSD_WIDTH) - 1) \
+					 << EASRC_IRQF_RSD_SHIFT)
+#define EASRC_IRQF_RSD(v)		(((v) << EASRC_IRQF_RSD_SHIFT) \
+					 & EASRC_IRQF_RSD_MASK)
+#define EASRC_IRQF_OER_SHIFT		4
+#define EASRC_IRQF_OER_WIDTH		4
+#define EASRC_IRQF_OER_MASK		((BIT(EASRC_IRQF_OER_WIDTH) - 1) \
+					 << EASRC_IRQF_OER_SHIFT)
+#define EASRC_IRQF_OER(v)		(((v) << EASRC_IRQF_OER_SHIFT) \
+					 & EASRC_IRQF_OER_MASK)
+#define EASRC_IRQF_IFO_SHIFT		0
+#define EASRC_IRQF_IFO_WIDTH		4
+#define EASRC_IRQF_IFO_MASK		((BIT(EASRC_IRQF_IFO_WIDTH) - 1) \
+					 << EASRC_IRQF_IFO_SHIFT)
+#define EASRC_IRQF_IFO(v)		(((v) << EASRC_IRQF_IFO_SHIFT) \
+					 & EASRC_IRQF_IFO_MASK)
+
+/* ASRC Context Channel STAT */
+#define EASRC_CSx_CSx_SHIFT		0
+#define EASRC_CSx_CSx_WIDTH		32
+#define EASRC_CSx_CSx(v)		((v) << EASRC_CSx_CSx_SHIFT)
+
+/* ASRC Debug Control Register */
+#define EASRC_DBGC_DMS_SHIFT		0
+#define EASRC_DBGC_DMS_WIDTH		6
+#define EASRC_DBGC_DMS_MASK		((BIT(EASRC_DBGC_DMS_WIDTH) - 1) \
+					 << EASRC_DBGC_DMS_SHIFT)
+#define EASRC_DBGC_DMS(v)		(((v) << EASRC_DBGC_DMS_SHIFT) \
+					 & EASRC_DBGC_DMS_MASK)
+
+/* ASRC Debug Status Register */
+#define EASRC_DBGS_DS_SHIFT		0
+#define EASRC_DBGS_DS_WIDTH		32
+#define EASRC_DBGS_DS(v)		((v) << EASRC_DBGS_DS_SHIFT)
+
+/* General Constants */
+#define EASRC_CTX_MAX_NUM		4
+#define EASRC_RS_COEFF_MEM		0
+#define EASRC_PF_COEFF_MEM		1
+
+/* Prefilter constants */
+#define EASRC_PF_ST1_ONLY		0
+#define EASRC_PF_TWO_STAGE_MODE		1
+#define EASRC_PF_ST1_COEFF_WR		0
+#define EASRC_PF_ST2_COEFF_WR		1
+#define EASRC_MAX_PF_TAPS		384
+
+/* Resampling constants */
+#define EASRC_RS_32_TAPS		0
+#define EASRC_RS_64_TAPS		1
+#define EASRC_RS_128_TAPS		2
+
+/* Initialization mode */
+#define EASRC_INIT_MODE_SW_CONTROL	0
+#define EASRC_INIT_MODE_REPLICATE	1
+#define EASRC_INIT_MODE_ZERO_FILL	2
+
+/* FIFO watermarks */
+#define FSL_EASRC_INPUTFIFO_WML		0x4
+#define FSL_EASRC_OUTPUTFIFO_WML	0x1
+
+#define EASRC_INPUTFIFO_THRESHOLD_MIN	0
+#define EASRC_INPUTFIFO_THRESHOLD_MAX	127
+#define EASRC_OUTPUTFIFO_THRESHOLD_MIN	0
+#define EASRC_OUTPUTFIFO_THRESHOLD_MAX	63
+
+#define EASRC_DMA_BUFFER_SIZE		(1024 * 48 * 9)
+#define EASRC_MAX_BUFFER_SIZE		(1024 * 48)
+
+#define FIRMWARE_MAGIC			0xDEAD
+#define FIRMWARE_VERSION		1
+
+#define PREFILTER_MEM_LEN		0x1800
+
+enum easrc_word_width {
+	EASRC_WIDTH_16_BIT = 0,
+	EASRC_WIDTH_20_BIT = 1,
+	EASRC_WIDTH_24_BIT = 2,
+	EASRC_WIDTH_32_BIT = 3,
+};
+
+struct __attribute__((__packed__))  asrc_firmware_hdr {
+	u32 magic;
+	u32 interp_scen;
+	u32 prefil_scen;
+	u32 firmware_version;
+};
+
+struct __attribute__((__packed__)) interp_params {
+	u32 magic;
+	u32 num_taps;
+	u32 num_phases;
+	u64 center_tap;
+	u64 coeff[8192];
+};
+
+struct __attribute__((__packed__)) prefil_params {
+	u32 magic;
+	u32 insr;
+	u32 outsr;
+	u32 st1_taps;
+	u32 st2_taps;
+	u32 st1_exp;
+	u64 coeff[256];
+};
+
+struct dma_block {
+	void *dma_vaddr;
+	unsigned int length;
+	unsigned int max_buf_size;
+};
+
+struct fsl_easrc_data_fmt {
+	unsigned int width : 2;
+	unsigned int endianness : 1;
+	unsigned int unsign : 1;
+	unsigned int floating_point : 1;
+	unsigned int iec958: 1;
+	unsigned int sample_pos: 5;
+	unsigned int addexp;
+};
+
+struct fsl_easrc_io_params {
+	struct fsl_easrc_data_fmt fmt;
+	unsigned int group_len;
+	unsigned int iterations;
+	unsigned int access_len;
+	unsigned int fifo_wtmk;
+	unsigned int sample_rate;
+	snd_pcm_format_t sample_format;
+	unsigned int norm_rate;
+};
+
+struct fsl_easrc_slot {
+	bool busy;
+	int ctx_index;
+	int slot_index;
+	int num_channel;  /* maximum is 8 */
+	int min_channel;
+	int max_channel;
+	int pf_mem_used;
+};
+
+/**
+ * fsl_easrc_ctx_priv: EASRC context private data
+ *
+ * @in_params: input parameter
+ * @out_params:  output parameter
+ * @st1_num_taps: tap number of stage 1
+ * @st2_num_taps: tap number of stage 2
+ * @st1_num_exp: exponent number of stage 1
+ * @pf_init_mode: prefilter init mode
+ * @rs_init_mode:  resample filter init mode
+ * @ctx_streams: stream flag of ctx
+ * @rs_ratio: resampler ratio
+ * @st1_coeff: pointer of stage 1 coeff
+ * @st2_coeff: pointer of stage 2 coeff
+ * @in_filled_sample: input filled sample
+ * @out_missed_sample: sample missed in output
+ * @st1_addexp: exponent added for stage1
+ * @st2_addexp: exponent added for stage2
+ */
+struct fsl_easrc_ctx_priv {
+	struct fsl_easrc_io_params in_params;
+	struct fsl_easrc_io_params out_params;
+	unsigned int st1_num_taps;
+	unsigned int st2_num_taps;
+	unsigned int st1_num_exp;
+	unsigned int pf_init_mode;
+	unsigned int rs_init_mode;
+	unsigned int ctx_streams;
+	u64 rs_ratio;
+	u64 *st1_coeff;
+	u64 *st2_coeff;
+	int in_filled_sample;
+	int out_missed_sample;
+	int st1_addexp;
+	int st2_addexp;
+};
+
+/**
+ * fsl_easrc_priv: EASRC private data
+ *
+ * @slot: slot setting
+ * @firmware_hdr:  the header of firmware
+ * @interp: pointer to interpolation filter coeff
+ * @prefil: pointer to prefilter coeff
+ * @fw: firmware of coeff table
+ * @fw_name: firmware name
+ * @rs_num_taps:  resample filter taps, 32, 64, or 128
+ * @bps_iec958: bits per sample of iec958
+ * @rs_coeff: resampler coefficient
+ * @const_coeff: one tap prefilter coefficient
+ * @firmware_loaded: firmware is loaded
+ */
+struct fsl_easrc_priv {
+	struct fsl_easrc_slot slot[EASRC_CTX_MAX_NUM][2];
+	struct asrc_firmware_hdr *firmware_hdr;
+	struct interp_params *interp;
+	struct prefil_params *prefil;
+	const struct firmware *fw;
+	const char *fw_name;
+	unsigned int rs_num_taps;
+	unsigned int bps_iec958[EASRC_CTX_MAX_NUM];
+	u64 *rs_coeff;
+	u64 const_coeff;
+	int firmware_loaded;
+};
+#endif /* _FSL_EASRC_H */
diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
new file mode 100644
index 000000000..17fefd27e
--- /dev/null
+++ b/sound/soc/fsl/fsl_esai.c
@@ -0,0 +1,1216 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale ESAI ALSA SoC Digital Audio Interface (DAI) driver
+//
+// Copyright (C) 2014 Freescale Semiconductor, Inc.
+
+#include <linux/clk.h>
+#include <linux/dmaengine.h>
+#include <linux/module.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+
+#include "fsl_esai.h"
+#include "imx-pcm.h"
+
+#define FSL_ESAI_FORMATS	(SNDRV_PCM_FMTBIT_S8 | \
+				SNDRV_PCM_FMTBIT_S16_LE | \
+				SNDRV_PCM_FMTBIT_S20_3LE | \
+				SNDRV_PCM_FMTBIT_S24_LE)
+
+/**
+ * struct fsl_esai_soc_data - soc specific data
+ * @reset_at_xrun: flags for enable reset operaton
+ */
+struct fsl_esai_soc_data {
+	bool reset_at_xrun;
+};
+
+/**
+ * struct fsl_esai - ESAI private data
+ * @dma_params_rx: DMA parameters for receive channel
+ * @dma_params_tx: DMA parameters for transmit channel
+ * @pdev: platform device pointer
+ * @regmap: regmap handler
+ * @coreclk: clock source to access register
+ * @extalclk: esai clock source to derive HCK, SCK and FS
+ * @fsysclk: system clock source to derive HCK, SCK and FS
+ * @spbaclk: SPBA clock (optional, depending on SoC design)
+ * @work: work to handle the reset operation
+ * @soc: soc specific data
+ * @lock: spin lock between hw_reset() and trigger()
+ * @fifo_depth: depth of tx/rx FIFO
+ * @slot_width: width of each DAI slot
+ * @slots: number of slots
+ * @tx_mask: slot mask for TX
+ * @rx_mask: slot mask for RX
+ * @channels: channel num for tx or rx
+ * @hck_rate: clock rate of desired HCKx clock
+ * @sck_rate: clock rate of desired SCKx clock
+ * @hck_dir: the direction of HCKx pads
+ * @sck_div: if using PSR/PM dividers for SCKx clock
+ * @consumer_mode: if fully using DAI clock consumer mode
+ * @synchronous: if using tx/rx synchronous mode
+ * @name: driver name
+ */
+struct fsl_esai {
+	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	struct snd_dmaengine_dai_dma_data dma_params_tx;
+	struct platform_device *pdev;
+	struct regmap *regmap;
+	struct clk *coreclk;
+	struct clk *extalclk;
+	struct clk *fsysclk;
+	struct clk *spbaclk;
+	struct work_struct work;
+	const struct fsl_esai_soc_data *soc;
+	spinlock_t lock; /* Protect hw_reset and trigger */
+	u32 fifo_depth;
+	u32 slot_width;
+	u32 slots;
+	u32 tx_mask;
+	u32 rx_mask;
+	u32 channels[2];
+	u32 hck_rate[2];
+	u32 sck_rate[2];
+	bool hck_dir[2];
+	bool sck_div[2];
+	bool consumer_mode;
+	bool synchronous;
+	char name[32];
+};
+
+static struct fsl_esai_soc_data fsl_esai_vf610 = {
+	.reset_at_xrun = true,
+};
+
+static struct fsl_esai_soc_data fsl_esai_imx35 = {
+	.reset_at_xrun = true,
+};
+
+static struct fsl_esai_soc_data fsl_esai_imx6ull = {
+	.reset_at_xrun = false,
+};
+
+static irqreturn_t esai_isr(int irq, void *devid)
+{
+	struct fsl_esai *esai_priv = (struct fsl_esai *)devid;
+	struct platform_device *pdev = esai_priv->pdev;
+	u32 esr;
+	u32 saisr;
+
+	regmap_read(esai_priv->regmap, REG_ESAI_ESR, &esr);
+	regmap_read(esai_priv->regmap, REG_ESAI_SAISR, &saisr);
+
+	if ((saisr & (ESAI_SAISR_TUE | ESAI_SAISR_ROE)) &&
+	    esai_priv->soc->reset_at_xrun) {
+		dev_dbg(&pdev->dev, "reset module for xrun\n");
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR,
+				   ESAI_xCR_xEIE_MASK, 0);
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_RCR,
+				   ESAI_xCR_xEIE_MASK, 0);
+		schedule_work(&esai_priv->work);
+	}
+
+	if (esr & ESAI_ESR_TINIT_MASK)
+		dev_dbg(&pdev->dev, "isr: Transmission Initialized\n");
+
+	if (esr & ESAI_ESR_RFF_MASK)
+		dev_warn(&pdev->dev, "isr: Receiving overrun\n");
+
+	if (esr & ESAI_ESR_TFE_MASK)
+		dev_warn(&pdev->dev, "isr: Transmission underrun\n");
+
+	if (esr & ESAI_ESR_TLS_MASK)
+		dev_dbg(&pdev->dev, "isr: Just transmitted the last slot\n");
+
+	if (esr & ESAI_ESR_TDE_MASK)
+		dev_dbg(&pdev->dev, "isr: Transmission data exception\n");
+
+	if (esr & ESAI_ESR_TED_MASK)
+		dev_dbg(&pdev->dev, "isr: Transmitting even slots\n");
+
+	if (esr & ESAI_ESR_TD_MASK)
+		dev_dbg(&pdev->dev, "isr: Transmitting data\n");
+
+	if (esr & ESAI_ESR_RLS_MASK)
+		dev_dbg(&pdev->dev, "isr: Just received the last slot\n");
+
+	if (esr & ESAI_ESR_RDE_MASK)
+		dev_dbg(&pdev->dev, "isr: Receiving data exception\n");
+
+	if (esr & ESAI_ESR_RED_MASK)
+		dev_dbg(&pdev->dev, "isr: Receiving even slots\n");
+
+	if (esr & ESAI_ESR_RD_MASK)
+		dev_dbg(&pdev->dev, "isr: Receiving data\n");
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * fsl_esai_divisor_cal - This function is used to calculate the
+ * divisors of psr, pm, fp and it is supposed to be called in
+ * set_dai_sysclk() and set_bclk().
+ *
+ * @dai: pointer to DAI
+ * @tx: current setting is for playback or capture
+ * @ratio: desired overall ratio for the paticipating dividers
+ * @usefp: for HCK setting, there is no need to set fp divider
+ * @fp: bypass other dividers by setting fp directly if fp != 0
+ */
+static int fsl_esai_divisor_cal(struct snd_soc_dai *dai, bool tx, u32 ratio,
+				bool usefp, u32 fp)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	u32 psr, pm = 999, maxfp, prod, sub, savesub, i, j;
+
+	maxfp = usefp ? 16 : 1;
+
+	if (usefp && fp)
+		goto out_fp;
+
+	if (ratio > 2 * 8 * 256 * maxfp || ratio < 2) {
+		dev_err(dai->dev, "the ratio is out of range (2 ~ %d)\n",
+				2 * 8 * 256 * maxfp);
+		return -EINVAL;
+	} else if (ratio % 2) {
+		dev_err(dai->dev, "the raio must be even if using upper divider\n");
+		return -EINVAL;
+	}
+
+	ratio /= 2;
+
+	psr = ratio <= 256 * maxfp ? ESAI_xCCR_xPSR_BYPASS : ESAI_xCCR_xPSR_DIV8;
+
+	/* Do not loop-search if PM (1 ~ 256) alone can serve the ratio */
+	if (ratio <= 256) {
+		pm = ratio;
+		fp = 1;
+		goto out;
+	}
+
+	/* Set the max fluctuation -- 0.1% of the max devisor */
+	savesub = (psr ? 1 : 8)  * 256 * maxfp / 1000;
+
+	/* Find the best value for PM */
+	for (i = 1; i <= 256; i++) {
+		for (j = 1; j <= maxfp; j++) {
+			/* PSR (1 or 8) * PM (1 ~ 256) * FP (1 ~ 16) */
+			prod = (psr ? 1 : 8) * i * j;
+
+			if (prod == ratio)
+				sub = 0;
+			else if (prod / ratio == 1)
+				sub = prod - ratio;
+			else if (ratio / prod == 1)
+				sub = ratio - prod;
+			else
+				continue;
+
+			/* Calculate the fraction */
+			sub = sub * 1000 / ratio;
+			if (sub < savesub) {
+				savesub = sub;
+				pm = i;
+				fp = j;
+			}
+
+			/* We are lucky */
+			if (savesub == 0)
+				goto out;
+		}
+	}
+
+	if (pm == 999) {
+		dev_err(dai->dev, "failed to calculate proper divisors\n");
+		return -EINVAL;
+	}
+
+out:
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCCR(tx),
+			   ESAI_xCCR_xPSR_MASK | ESAI_xCCR_xPM_MASK,
+			   psr | ESAI_xCCR_xPM(pm));
+
+out_fp:
+	/* Bypass fp if not being required */
+	if (maxfp <= 1)
+		return 0;
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCCR(tx),
+			   ESAI_xCCR_xFP_MASK, ESAI_xCCR_xFP(fp));
+
+	return 0;
+}
+
+/**
+ * fsl_esai_set_dai_sysclk - configure the clock frequency of MCLK (HCKT/HCKR)
+ * @dai: pointer to DAI
+ * @clk_id: The clock source of HCKT/HCKR
+ *	  (Input from outside; output from inside, FSYS or EXTAL)
+ * @freq: The required clock rate of HCKT/HCKR
+ * @dir: The clock direction of HCKT/HCKR
+ *
+ * Note: If the direction is input, we do not care about clk_id.
+ */
+static int fsl_esai_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
+				   unsigned int freq, int dir)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	struct clk *clksrc = esai_priv->extalclk;
+	bool tx = (clk_id <= ESAI_HCKT_EXTAL || esai_priv->synchronous);
+	bool in = dir == SND_SOC_CLOCK_IN;
+	u32 ratio, ecr = 0;
+	unsigned long clk_rate;
+	int ret;
+
+	if (freq == 0) {
+		dev_err(dai->dev, "%sput freq of HCK%c should not be 0Hz\n",
+			in ? "in" : "out", tx ? 'T' : 'R');
+		return -EINVAL;
+	}
+
+	/* Bypass divider settings if the requirement doesn't change */
+	if (freq == esai_priv->hck_rate[tx] && dir == esai_priv->hck_dir[tx])
+		return 0;
+
+	/* sck_div can be only bypassed if ETO/ERO=0 and SNC_SOC_CLOCK_OUT */
+	esai_priv->sck_div[tx] = true;
+
+	/* Set the direction of HCKT/HCKR pins */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCCR(tx),
+			   ESAI_xCCR_xHCKD, in ? 0 : ESAI_xCCR_xHCKD);
+
+	if (in)
+		goto out;
+
+	switch (clk_id) {
+	case ESAI_HCKT_FSYS:
+	case ESAI_HCKR_FSYS:
+		clksrc = esai_priv->fsysclk;
+		break;
+	case ESAI_HCKT_EXTAL:
+		ecr |= ESAI_ECR_ETI;
+		break;
+	case ESAI_HCKR_EXTAL:
+		ecr |= esai_priv->synchronous ? ESAI_ECR_ETI : ESAI_ECR_ERI;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (IS_ERR(clksrc)) {
+		dev_err(dai->dev, "no assigned %s clock\n",
+			(clk_id % 2) ? "extal" : "fsys");
+		return PTR_ERR(clksrc);
+	}
+	clk_rate = clk_get_rate(clksrc);
+
+	ratio = clk_rate / freq;
+	if (ratio * freq > clk_rate)
+		ret = ratio * freq - clk_rate;
+	else if (ratio * freq < clk_rate)
+		ret = clk_rate - ratio * freq;
+	else
+		ret = 0;
+
+	/* Block if clock source can not be divided into the required rate */
+	if (ret != 0 && clk_rate / ret < 1000) {
+		dev_err(dai->dev, "failed to derive required HCK%c rate\n",
+				tx ? 'T' : 'R');
+		return -EINVAL;
+	}
+
+	/* Only EXTAL source can be output directly without using PSR and PM */
+	if (ratio == 1 && clksrc == esai_priv->extalclk) {
+		/* Bypass all the dividers if not being needed */
+		ecr |= tx ? ESAI_ECR_ETO : ESAI_ECR_ERO;
+		goto out;
+	} else if (ratio < 2) {
+		/* The ratio should be no less than 2 if using other sources */
+		dev_err(dai->dev, "failed to derive required HCK%c rate\n",
+				tx ? 'T' : 'R');
+		return -EINVAL;
+	}
+
+	ret = fsl_esai_divisor_cal(dai, tx, ratio, false, 0);
+	if (ret)
+		return ret;
+
+	esai_priv->sck_div[tx] = false;
+
+out:
+	esai_priv->hck_dir[tx] = dir;
+	esai_priv->hck_rate[tx] = freq;
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_ECR,
+			   tx ? ESAI_ECR_ETI | ESAI_ECR_ETO :
+			   ESAI_ECR_ERI | ESAI_ECR_ERO, ecr);
+
+	return 0;
+}
+
+/**
+ * fsl_esai_set_bclk - configure the related dividers according to the bclk rate
+ * @dai: pointer to DAI
+ * @tx: direction boolean
+ * @freq: bclk freq
+ */
+static int fsl_esai_set_bclk(struct snd_soc_dai *dai, bool tx, u32 freq)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	u32 hck_rate = esai_priv->hck_rate[tx];
+	u32 sub, ratio = hck_rate / freq;
+	int ret;
+
+	/* Don't apply for fully consumer mode or unchanged bclk */
+	if (esai_priv->consumer_mode || esai_priv->sck_rate[tx] == freq)
+		return 0;
+
+	if (ratio * freq > hck_rate)
+		sub = ratio * freq - hck_rate;
+	else if (ratio * freq < hck_rate)
+		sub = hck_rate - ratio * freq;
+	else
+		sub = 0;
+
+	/* Block if clock source can not be divided into the required rate */
+	if (sub != 0 && hck_rate / sub < 1000) {
+		dev_err(dai->dev, "failed to derive required SCK%c rate\n",
+				tx ? 'T' : 'R');
+		return -EINVAL;
+	}
+
+	/* The ratio should be contented by FP alone if bypassing PM and PSR */
+	if (!esai_priv->sck_div[tx] && (ratio > 16 || ratio == 0)) {
+		dev_err(dai->dev, "the ratio is out of range (1 ~ 16)\n");
+		return -EINVAL;
+	}
+
+	ret = fsl_esai_divisor_cal(dai, tx, ratio, true,
+			esai_priv->sck_div[tx] ? 0 : ratio);
+	if (ret)
+		return ret;
+
+	/* Save current bclk rate */
+	esai_priv->sck_rate[tx] = freq;
+
+	return 0;
+}
+
+static int fsl_esai_set_dai_tdm_slot(struct snd_soc_dai *dai, u32 tx_mask,
+				     u32 rx_mask, int slots, int slot_width)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TCCR,
+			   ESAI_xCCR_xDC_MASK, ESAI_xCCR_xDC(slots));
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RCCR,
+			   ESAI_xCCR_xDC_MASK, ESAI_xCCR_xDC(slots));
+
+	esai_priv->slot_width = slot_width;
+	esai_priv->slots = slots;
+	esai_priv->tx_mask = tx_mask;
+	esai_priv->rx_mask = rx_mask;
+
+	return 0;
+}
+
+static int fsl_esai_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	u32 xcr = 0, xccr = 0, mask;
+
+	/* DAI mode */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		/* Data on rising edge of bclk, frame low, 1clk before data */
+		xcr |= ESAI_xCR_xFSR;
+		xccr |= ESAI_xCCR_xFSP | ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		/* Data on rising edge of bclk, frame high */
+		xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		/* Data on rising edge of bclk, frame high, right aligned */
+		xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		xcr  |= ESAI_xCR_xWA;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		/* Data on rising edge of bclk, frame high, 1clk before data */
+		xcr |= ESAI_xCR_xFSL | ESAI_xCR_xFSR;
+		xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		/* Data on rising edge of bclk, frame high */
+		xcr |= ESAI_xCR_xFSL;
+		xccr |= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* DAI clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		/* Nothing to do for both normal cases */
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		/* Invert bit clock */
+		xccr ^= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		/* Invert frame clock */
+		xccr ^= ESAI_xCCR_xFSP;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		/* Invert both clocks */
+		xccr ^= ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP | ESAI_xCCR_xFSP;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	esai_priv->consumer_mode = false;
+
+	/* DAI clock provider masks */
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BC_FC:
+		esai_priv->consumer_mode = true;
+		break;
+	case SND_SOC_DAIFMT_BP_FC:
+		xccr |= ESAI_xCCR_xCKD;
+		break;
+	case SND_SOC_DAIFMT_BC_FP:
+		xccr |= ESAI_xCCR_xFSD;
+		break;
+	case SND_SOC_DAIFMT_BP_FP:
+		xccr |= ESAI_xCCR_xFSD | ESAI_xCCR_xCKD;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mask = ESAI_xCR_xFSL | ESAI_xCR_xFSR | ESAI_xCR_xWA;
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR, mask, xcr);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RCR, mask, xcr);
+
+	mask = ESAI_xCCR_xCKP | ESAI_xCCR_xHCKP | ESAI_xCCR_xFSP |
+		ESAI_xCCR_xFSD | ESAI_xCCR_xCKD;
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TCCR, mask, xccr);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RCCR, mask, xccr);
+
+	return 0;
+}
+
+static int fsl_esai_startup(struct snd_pcm_substream *substream,
+			    struct snd_soc_dai *dai)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+
+	if (!snd_soc_dai_active(dai)) {
+		/* Set synchronous mode */
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_SAICR,
+				   ESAI_SAICR_SYNC, esai_priv->synchronous ?
+				   ESAI_SAICR_SYNC : 0);
+
+		/* Set slots count */
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_TCCR,
+				   ESAI_xCCR_xDC_MASK,
+				   ESAI_xCCR_xDC(esai_priv->slots));
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_RCCR,
+				   ESAI_xCCR_xDC_MASK,
+				   ESAI_xCCR_xDC(esai_priv->slots));
+	}
+
+	return 0;
+
+}
+
+static int fsl_esai_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params,
+			      struct snd_soc_dai *dai)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	u32 width = params_width(params);
+	u32 channels = params_channels(params);
+	u32 pins = DIV_ROUND_UP(channels, esai_priv->slots);
+	u32 slot_width = width;
+	u32 bclk, mask, val;
+	int ret;
+
+	/* Override slot_width if being specifically set */
+	if (esai_priv->slot_width)
+		slot_width = esai_priv->slot_width;
+
+	bclk = params_rate(params) * slot_width * esai_priv->slots;
+
+	ret = fsl_esai_set_bclk(dai, esai_priv->synchronous || tx, bclk);
+	if (ret)
+		return ret;
+
+	mask = ESAI_xCR_xSWS_MASK;
+	val = ESAI_xCR_xSWS(slot_width, width);
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx), mask, val);
+	/* Recording in synchronous mode needs to set TCR also */
+	if (!tx && esai_priv->synchronous)
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR, mask, val);
+
+	/* Use Normal mode to support monaural audio */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx),
+			   ESAI_xCR_xMOD_MASK, params_channels(params) > 1 ?
+			   ESAI_xCR_xMOD_NETWORK : 0);
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx),
+			   ESAI_xFCR_xFR_MASK, ESAI_xFCR_xFR);
+
+	mask = ESAI_xFCR_xFR_MASK | ESAI_xFCR_xWA_MASK | ESAI_xFCR_xFWM_MASK |
+	      (tx ? ESAI_xFCR_TE_MASK | ESAI_xFCR_TIEN : ESAI_xFCR_RE_MASK);
+	val = ESAI_xFCR_xWA(width) | ESAI_xFCR_xFWM(esai_priv->fifo_depth) |
+	     (tx ? ESAI_xFCR_TE(pins) | ESAI_xFCR_TIEN : ESAI_xFCR_RE(pins));
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx), mask, val);
+
+	if (tx)
+		regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR,
+				ESAI_xCR_PADC, ESAI_xCR_PADC);
+
+	/* Remove ESAI personal reset by configuring ESAI_PCRC and ESAI_PRRC */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_PRRC,
+			   ESAI_PRRC_PDC_MASK, ESAI_PRRC_PDC(ESAI_GPIO));
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_PCRC,
+			   ESAI_PCRC_PC_MASK, ESAI_PCRC_PC(ESAI_GPIO));
+	return 0;
+}
+
+static int fsl_esai_hw_init(struct fsl_esai *esai_priv)
+{
+	struct platform_device *pdev = esai_priv->pdev;
+	int ret;
+
+	/* Reset ESAI unit */
+	ret = regmap_update_bits(esai_priv->regmap, REG_ESAI_ECR,
+				 ESAI_ECR_ESAIEN_MASK | ESAI_ECR_ERST_MASK,
+				 ESAI_ECR_ESAIEN | ESAI_ECR_ERST);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to reset ESAI: %d\n", ret);
+		return ret;
+	}
+
+	/*
+	 * We need to enable ESAI so as to access some of its registers.
+	 * Otherwise, we would fail to dump regmap from user space.
+	 */
+	ret = regmap_update_bits(esai_priv->regmap, REG_ESAI_ECR,
+				 ESAI_ECR_ESAIEN_MASK | ESAI_ECR_ERST_MASK,
+				 ESAI_ECR_ESAIEN);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to enable ESAI: %d\n", ret);
+		return ret;
+	}
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_PRRC,
+			   ESAI_PRRC_PDC_MASK, 0);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_PCRC,
+			   ESAI_PCRC_PC_MASK, 0);
+
+	return 0;
+}
+
+static int fsl_esai_register_restore(struct fsl_esai *esai_priv)
+{
+	int ret;
+
+	/* FIFO reset for safety */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TFCR,
+			   ESAI_xFCR_xFR, ESAI_xFCR_xFR);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RFCR,
+			   ESAI_xFCR_xFR, ESAI_xFCR_xFR);
+
+	regcache_mark_dirty(esai_priv->regmap);
+	ret = regcache_sync(esai_priv->regmap);
+	if (ret)
+		return ret;
+
+	/* FIFO reset done */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TFCR, ESAI_xFCR_xFR, 0);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RFCR, ESAI_xFCR_xFR, 0);
+
+	return 0;
+}
+
+static void fsl_esai_trigger_start(struct fsl_esai *esai_priv, bool tx)
+{
+	u8 i, channels = esai_priv->channels[tx];
+	u32 pins = DIV_ROUND_UP(channels, esai_priv->slots);
+	u32 mask;
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx),
+			   ESAI_xFCR_xFEN_MASK, ESAI_xFCR_xFEN);
+
+	/* Write initial words reqiured by ESAI as normal procedure */
+	for (i = 0; tx && i < channels; i++)
+		regmap_write(esai_priv->regmap, REG_ESAI_ETDR, 0x0);
+
+	/*
+	 * When set the TE/RE in the end of enablement flow, there
+	 * will be channel swap issue for multi data line case.
+	 * In order to workaround this issue, we switch the bit
+	 * enablement sequence to below sequence
+	 * 1) clear the xSMB & xSMA: which is done in probe and
+	 *                           stop state.
+	 * 2) set TE/RE
+	 * 3) set xSMB
+	 * 4) set xSMA:  xSMA is the last one in this flow, which
+	 *               will trigger esai to start.
+	 */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx),
+			   tx ? ESAI_xCR_TE_MASK : ESAI_xCR_RE_MASK,
+			   tx ? ESAI_xCR_TE(pins) : ESAI_xCR_RE(pins));
+	mask = tx ? esai_priv->tx_mask : esai_priv->rx_mask;
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xSMB(tx),
+			   ESAI_xSMB_xS_MASK, ESAI_xSMB_xS(mask));
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xSMA(tx),
+			   ESAI_xSMA_xS_MASK, ESAI_xSMA_xS(mask));
+
+	/* Enable Exception interrupt */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx),
+			   ESAI_xCR_xEIE_MASK, ESAI_xCR_xEIE);
+}
+
+static void fsl_esai_trigger_stop(struct fsl_esai *esai_priv, bool tx)
+{
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx),
+			   ESAI_xCR_xEIE_MASK, 0);
+
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xCR(tx),
+			   tx ? ESAI_xCR_TE_MASK : ESAI_xCR_RE_MASK, 0);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xSMA(tx),
+			   ESAI_xSMA_xS_MASK, 0);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xSMB(tx),
+			   ESAI_xSMB_xS_MASK, 0);
+
+	/* Disable and reset FIFO */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx),
+			   ESAI_xFCR_xFR | ESAI_xFCR_xFEN, ESAI_xFCR_xFR);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_xFCR(tx),
+			   ESAI_xFCR_xFR, 0);
+}
+
+static void fsl_esai_hw_reset(struct work_struct *work)
+{
+	struct fsl_esai *esai_priv = container_of(work, struct fsl_esai, work);
+	bool tx = true, rx = false, enabled[2];
+	unsigned long lock_flags;
+	u32 tfcr, rfcr;
+
+	spin_lock_irqsave(&esai_priv->lock, lock_flags);
+	/* Save the registers */
+	regmap_read(esai_priv->regmap, REG_ESAI_TFCR, &tfcr);
+	regmap_read(esai_priv->regmap, REG_ESAI_RFCR, &rfcr);
+	enabled[tx] = tfcr & ESAI_xFCR_xFEN;
+	enabled[rx] = rfcr & ESAI_xFCR_xFEN;
+
+	/* Stop the tx & rx */
+	fsl_esai_trigger_stop(esai_priv, tx);
+	fsl_esai_trigger_stop(esai_priv, rx);
+
+	/* Reset the esai, and ignore return value */
+	fsl_esai_hw_init(esai_priv);
+
+	/* Enforce ESAI personal resets for both TX and RX */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR,
+			   ESAI_xCR_xPR_MASK, ESAI_xCR_xPR);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RCR,
+			   ESAI_xCR_xPR_MASK, ESAI_xCR_xPR);
+
+	/* Restore registers by regcache_sync, and ignore return value */
+	fsl_esai_register_restore(esai_priv);
+
+	/* Remove ESAI personal resets by configuring PCRC and PRRC also */
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_TCR,
+			   ESAI_xCR_xPR_MASK, 0);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_RCR,
+			   ESAI_xCR_xPR_MASK, 0);
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_PRRC,
+			   ESAI_PRRC_PDC_MASK, ESAI_PRRC_PDC(ESAI_GPIO));
+	regmap_update_bits(esai_priv->regmap, REG_ESAI_PCRC,
+			   ESAI_PCRC_PC_MASK, ESAI_PCRC_PC(ESAI_GPIO));
+
+	/* Restart tx / rx, if they already enabled */
+	if (enabled[tx])
+		fsl_esai_trigger_start(esai_priv, tx);
+	if (enabled[rx])
+		fsl_esai_trigger_start(esai_priv, rx);
+
+	spin_unlock_irqrestore(&esai_priv->lock, lock_flags);
+}
+
+static int fsl_esai_trigger(struct snd_pcm_substream *substream, int cmd,
+			    struct snd_soc_dai *dai)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	unsigned long lock_flags;
+
+	esai_priv->channels[tx] = substream->runtime->channels;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		spin_lock_irqsave(&esai_priv->lock, lock_flags);
+		fsl_esai_trigger_start(esai_priv, tx);
+		spin_unlock_irqrestore(&esai_priv->lock, lock_flags);
+		break;
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		spin_lock_irqsave(&esai_priv->lock, lock_flags);
+		fsl_esai_trigger_stop(esai_priv, tx);
+		spin_unlock_irqrestore(&esai_priv->lock, lock_flags);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops fsl_esai_dai_ops = {
+	.startup = fsl_esai_startup,
+	.trigger = fsl_esai_trigger,
+	.hw_params = fsl_esai_hw_params,
+	.set_sysclk = fsl_esai_set_dai_sysclk,
+	.set_fmt = fsl_esai_set_dai_fmt,
+	.set_tdm_slot = fsl_esai_set_dai_tdm_slot,
+};
+
+static int fsl_esai_dai_probe(struct snd_soc_dai *dai)
+{
+	struct fsl_esai *esai_priv = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &esai_priv->dma_params_tx,
+				  &esai_priv->dma_params_rx);
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver fsl_esai_dai = {
+	.probe = fsl_esai_dai_probe,
+	.playback = {
+		.stream_name = "CPU-Playback",
+		.channels_min = 1,
+		.channels_max = 12,
+		.rates = SNDRV_PCM_RATE_8000_192000,
+		.formats = FSL_ESAI_FORMATS,
+	},
+	.capture = {
+		.stream_name = "CPU-Capture",
+		.channels_min = 1,
+		.channels_max = 8,
+		.rates = SNDRV_PCM_RATE_8000_192000,
+		.formats = FSL_ESAI_FORMATS,
+	},
+	.ops = &fsl_esai_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_esai_component = {
+	.name			= "fsl-esai",
+	.legacy_dai_naming	= 1,
+};
+
+static const struct reg_default fsl_esai_reg_defaults[] = {
+	{REG_ESAI_ETDR,	 0x00000000},
+	{REG_ESAI_ECR,	 0x00000000},
+	{REG_ESAI_TFCR,	 0x00000000},
+	{REG_ESAI_RFCR,	 0x00000000},
+	{REG_ESAI_TX0,	 0x00000000},
+	{REG_ESAI_TX1,	 0x00000000},
+	{REG_ESAI_TX2,	 0x00000000},
+	{REG_ESAI_TX3,	 0x00000000},
+	{REG_ESAI_TX4,	 0x00000000},
+	{REG_ESAI_TX5,	 0x00000000},
+	{REG_ESAI_TSR,	 0x00000000},
+	{REG_ESAI_SAICR, 0x00000000},
+	{REG_ESAI_TCR,	 0x00000000},
+	{REG_ESAI_TCCR,	 0x00000000},
+	{REG_ESAI_RCR,	 0x00000000},
+	{REG_ESAI_RCCR,	 0x00000000},
+	{REG_ESAI_TSMA,  0x0000ffff},
+	{REG_ESAI_TSMB,  0x0000ffff},
+	{REG_ESAI_RSMA,  0x0000ffff},
+	{REG_ESAI_RSMB,  0x0000ffff},
+	{REG_ESAI_PRRC,  0x00000000},
+	{REG_ESAI_PCRC,  0x00000000},
+};
+
+static bool fsl_esai_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_ESAI_ERDR:
+	case REG_ESAI_ECR:
+	case REG_ESAI_ESR:
+	case REG_ESAI_TFCR:
+	case REG_ESAI_TFSR:
+	case REG_ESAI_RFCR:
+	case REG_ESAI_RFSR:
+	case REG_ESAI_RX0:
+	case REG_ESAI_RX1:
+	case REG_ESAI_RX2:
+	case REG_ESAI_RX3:
+	case REG_ESAI_SAISR:
+	case REG_ESAI_SAICR:
+	case REG_ESAI_TCR:
+	case REG_ESAI_TCCR:
+	case REG_ESAI_RCR:
+	case REG_ESAI_RCCR:
+	case REG_ESAI_TSMA:
+	case REG_ESAI_TSMB:
+	case REG_ESAI_RSMA:
+	case REG_ESAI_RSMB:
+	case REG_ESAI_PRRC:
+	case REG_ESAI_PCRC:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_esai_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_ESAI_ERDR:
+	case REG_ESAI_ESR:
+	case REG_ESAI_TFSR:
+	case REG_ESAI_RFSR:
+	case REG_ESAI_RX0:
+	case REG_ESAI_RX1:
+	case REG_ESAI_RX2:
+	case REG_ESAI_RX3:
+	case REG_ESAI_SAISR:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_esai_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_ESAI_ETDR:
+	case REG_ESAI_ECR:
+	case REG_ESAI_TFCR:
+	case REG_ESAI_RFCR:
+	case REG_ESAI_TX0:
+	case REG_ESAI_TX1:
+	case REG_ESAI_TX2:
+	case REG_ESAI_TX3:
+	case REG_ESAI_TX4:
+	case REG_ESAI_TX5:
+	case REG_ESAI_TSR:
+	case REG_ESAI_SAICR:
+	case REG_ESAI_TCR:
+	case REG_ESAI_TCCR:
+	case REG_ESAI_RCR:
+	case REG_ESAI_RCCR:
+	case REG_ESAI_TSMA:
+	case REG_ESAI_TSMB:
+	case REG_ESAI_RSMA:
+	case REG_ESAI_RSMB:
+	case REG_ESAI_PRRC:
+	case REG_ESAI_PCRC:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config fsl_esai_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+
+	.max_register = REG_ESAI_PCRC,
+	.reg_defaults = fsl_esai_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(fsl_esai_reg_defaults),
+	.readable_reg = fsl_esai_readable_reg,
+	.volatile_reg = fsl_esai_volatile_reg,
+	.writeable_reg = fsl_esai_writeable_reg,
+	.cache_type = REGCACHE_FLAT,
+};
+
+static int fsl_esai_runtime_resume(struct device *dev);
+static int fsl_esai_runtime_suspend(struct device *dev);
+
+static int fsl_esai_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct fsl_esai *esai_priv;
+	struct resource *res;
+	const __be32 *iprop;
+	void __iomem *regs;
+	int irq, ret;
+
+	esai_priv = devm_kzalloc(&pdev->dev, sizeof(*esai_priv), GFP_KERNEL);
+	if (!esai_priv)
+		return -ENOMEM;
+
+	esai_priv->pdev = pdev;
+	snprintf(esai_priv->name, sizeof(esai_priv->name), "%pOFn", np);
+
+	esai_priv->soc = of_device_get_match_data(&pdev->dev);
+
+	/* Get the addresses and IRQ */
+	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	esai_priv->regmap = devm_regmap_init_mmio(&pdev->dev, regs, &fsl_esai_regmap_config);
+	if (IS_ERR(esai_priv->regmap)) {
+		dev_err(&pdev->dev, "failed to init regmap: %ld\n",
+				PTR_ERR(esai_priv->regmap));
+		return PTR_ERR(esai_priv->regmap);
+	}
+
+	esai_priv->coreclk = devm_clk_get(&pdev->dev, "core");
+	if (IS_ERR(esai_priv->coreclk)) {
+		dev_err(&pdev->dev, "failed to get core clock: %ld\n",
+				PTR_ERR(esai_priv->coreclk));
+		return PTR_ERR(esai_priv->coreclk);
+	}
+
+	esai_priv->extalclk = devm_clk_get(&pdev->dev, "extal");
+	if (IS_ERR(esai_priv->extalclk))
+		dev_warn(&pdev->dev, "failed to get extal clock: %ld\n",
+				PTR_ERR(esai_priv->extalclk));
+
+	esai_priv->fsysclk = devm_clk_get(&pdev->dev, "fsys");
+	if (IS_ERR(esai_priv->fsysclk))
+		dev_warn(&pdev->dev, "failed to get fsys clock: %ld\n",
+				PTR_ERR(esai_priv->fsysclk));
+
+	esai_priv->spbaclk = devm_clk_get(&pdev->dev, "spba");
+	if (IS_ERR(esai_priv->spbaclk))
+		dev_warn(&pdev->dev, "failed to get spba clock: %ld\n",
+				PTR_ERR(esai_priv->spbaclk));
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = devm_request_irq(&pdev->dev, irq, esai_isr, IRQF_SHARED,
+			       esai_priv->name, esai_priv);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to claim irq %u\n", irq);
+		return ret;
+	}
+
+	/* Set a default slot number */
+	esai_priv->slots = 2;
+
+	/* Set a default clock provider state */
+	esai_priv->consumer_mode = true;
+
+	/* Determine the FIFO depth */
+	iprop = of_get_property(np, "fsl,fifo-depth", NULL);
+	if (iprop)
+		esai_priv->fifo_depth = be32_to_cpup(iprop);
+	else
+		esai_priv->fifo_depth = 64;
+
+	esai_priv->dma_params_tx.maxburst = 16;
+	esai_priv->dma_params_rx.maxburst = 16;
+	esai_priv->dma_params_tx.addr = res->start + REG_ESAI_ETDR;
+	esai_priv->dma_params_rx.addr = res->start + REG_ESAI_ERDR;
+
+	esai_priv->synchronous =
+		of_property_read_bool(np, "fsl,esai-synchronous");
+
+	/* Implement full symmetry for synchronous mode */
+	if (esai_priv->synchronous) {
+		fsl_esai_dai.symmetric_rate = 1;
+		fsl_esai_dai.symmetric_channels = 1;
+		fsl_esai_dai.symmetric_sample_bits = 1;
+	}
+
+	dev_set_drvdata(&pdev->dev, esai_priv);
+	spin_lock_init(&esai_priv->lock);
+	pm_runtime_enable(&pdev->dev);
+	if (!pm_runtime_enabled(&pdev->dev)) {
+		ret = fsl_esai_runtime_resume(&pdev->dev);
+		if (ret)
+			goto err_pm_disable;
+	}
+
+	ret = pm_runtime_resume_and_get(&pdev->dev);
+	if (ret < 0)
+		goto err_pm_get_sync;
+
+	ret = fsl_esai_hw_init(esai_priv);
+	if (ret)
+		goto err_pm_get_sync;
+
+	esai_priv->tx_mask = 0xFFFFFFFF;
+	esai_priv->rx_mask = 0xFFFFFFFF;
+
+	/* Clear the TSMA, TSMB, RSMA, RSMB */
+	regmap_write(esai_priv->regmap, REG_ESAI_TSMA, 0);
+	regmap_write(esai_priv->regmap, REG_ESAI_TSMB, 0);
+	regmap_write(esai_priv->regmap, REG_ESAI_RSMA, 0);
+	regmap_write(esai_priv->regmap, REG_ESAI_RSMB, 0);
+
+	ret = pm_runtime_put_sync(&pdev->dev);
+	if (ret < 0 && ret != -ENOSYS)
+		goto err_pm_get_sync;
+
+	/*
+	 * Register platform component before registering cpu dai for there
+	 * is not defer probe for platform component in snd_soc_add_pcm_runtime().
+	 */
+	ret = imx_pcm_dma_init(pdev);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to init imx pcm dma: %d\n", ret);
+		goto err_pm_get_sync;
+	}
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_esai_component,
+					      &fsl_esai_dai, 1);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
+		goto err_pm_get_sync;
+	}
+
+	INIT_WORK(&esai_priv->work, fsl_esai_hw_reset);
+
+	return ret;
+
+err_pm_get_sync:
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		fsl_esai_runtime_suspend(&pdev->dev);
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	return ret;
+}
+
+static int fsl_esai_remove(struct platform_device *pdev)
+{
+	struct fsl_esai *esai_priv = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		fsl_esai_runtime_suspend(&pdev->dev);
+
+	cancel_work_sync(&esai_priv->work);
+
+	return 0;
+}
+
+static const struct of_device_id fsl_esai_dt_ids[] = {
+	{ .compatible = "fsl,imx35-esai", .data = &fsl_esai_imx35 },
+	{ .compatible = "fsl,vf610-esai", .data = &fsl_esai_vf610 },
+	{ .compatible = "fsl,imx6ull-esai", .data = &fsl_esai_imx6ull },
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_esai_dt_ids);
+
+static int fsl_esai_runtime_resume(struct device *dev)
+{
+	struct fsl_esai *esai = dev_get_drvdata(dev);
+	int ret;
+
+	/*
+	 * Some platforms might use the same bit to gate all three or two of
+	 * clocks, so keep all clocks open/close at the same time for safety
+	 */
+	ret = clk_prepare_enable(esai->coreclk);
+	if (ret)
+		return ret;
+	if (!IS_ERR(esai->spbaclk)) {
+		ret = clk_prepare_enable(esai->spbaclk);
+		if (ret)
+			goto err_spbaclk;
+	}
+	if (!IS_ERR(esai->extalclk)) {
+		ret = clk_prepare_enable(esai->extalclk);
+		if (ret)
+			goto err_extalclk;
+	}
+	if (!IS_ERR(esai->fsysclk)) {
+		ret = clk_prepare_enable(esai->fsysclk);
+		if (ret)
+			goto err_fsysclk;
+	}
+
+	regcache_cache_only(esai->regmap, false);
+
+	ret = fsl_esai_register_restore(esai);
+	if (ret)
+		goto err_regcache_sync;
+
+	return 0;
+
+err_regcache_sync:
+	if (!IS_ERR(esai->fsysclk))
+		clk_disable_unprepare(esai->fsysclk);
+err_fsysclk:
+	if (!IS_ERR(esai->extalclk))
+		clk_disable_unprepare(esai->extalclk);
+err_extalclk:
+	if (!IS_ERR(esai->spbaclk))
+		clk_disable_unprepare(esai->spbaclk);
+err_spbaclk:
+	clk_disable_unprepare(esai->coreclk);
+
+	return ret;
+}
+
+static int fsl_esai_runtime_suspend(struct device *dev)
+{
+	struct fsl_esai *esai = dev_get_drvdata(dev);
+
+	regcache_cache_only(esai->regmap, true);
+
+	if (!IS_ERR(esai->fsysclk))
+		clk_disable_unprepare(esai->fsysclk);
+	if (!IS_ERR(esai->extalclk))
+		clk_disable_unprepare(esai->extalclk);
+	if (!IS_ERR(esai->spbaclk))
+		clk_disable_unprepare(esai->spbaclk);
+	clk_disable_unprepare(esai->coreclk);
+
+	return 0;
+}
+
+static const struct dev_pm_ops fsl_esai_pm_ops = {
+	SET_RUNTIME_PM_OPS(fsl_esai_runtime_suspend,
+			   fsl_esai_runtime_resume,
+			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static struct platform_driver fsl_esai_driver = {
+	.probe = fsl_esai_probe,
+	.remove = fsl_esai_remove,
+	.driver = {
+		.name = "fsl-esai-dai",
+		.pm = &fsl_esai_pm_ops,
+		.of_match_table = fsl_esai_dt_ids,
+	},
+};
+
+module_platform_driver(fsl_esai_driver);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Freescale ESAI CPU DAI driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:fsl-esai-dai");
diff --git a/sound/soc/fsl/fsl_esai.h b/sound/soc/fsl/fsl_esai.h
new file mode 100644
index 000000000..f873588d9
--- /dev/null
+++ b/sound/soc/fsl/fsl_esai.h
@@ -0,0 +1,351 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * fsl_esai.h - ALSA ESAI interface for the Freescale i.MX SoC
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * Author: Nicolin Chen <Guangyu.Chen@freescale.com>
+ */
+
+#ifndef _FSL_ESAI_DAI_H
+#define _FSL_ESAI_DAI_H
+
+/* ESAI Register Map */
+#define REG_ESAI_ETDR		0x00
+#define REG_ESAI_ERDR		0x04
+#define REG_ESAI_ECR		0x08
+#define REG_ESAI_ESR		0x0C
+#define REG_ESAI_TFCR		0x10
+#define REG_ESAI_TFSR		0x14
+#define REG_ESAI_RFCR		0x18
+#define REG_ESAI_RFSR		0x1C
+#define REG_ESAI_xFCR(tx)	(tx ? REG_ESAI_TFCR : REG_ESAI_RFCR)
+#define REG_ESAI_xFSR(tx)	(tx ? REG_ESAI_TFSR : REG_ESAI_RFSR)
+#define REG_ESAI_TX0		0x80
+#define REG_ESAI_TX1		0x84
+#define REG_ESAI_TX2		0x88
+#define REG_ESAI_TX3		0x8C
+#define REG_ESAI_TX4		0x90
+#define REG_ESAI_TX5		0x94
+#define REG_ESAI_TSR		0x98
+#define REG_ESAI_RX0		0xA0
+#define REG_ESAI_RX1		0xA4
+#define REG_ESAI_RX2		0xA8
+#define REG_ESAI_RX3		0xAC
+#define REG_ESAI_SAISR		0xCC
+#define REG_ESAI_SAICR		0xD0
+#define REG_ESAI_TCR		0xD4
+#define REG_ESAI_TCCR		0xD8
+#define REG_ESAI_RCR		0xDC
+#define REG_ESAI_RCCR		0xE0
+#define REG_ESAI_xCR(tx)	(tx ? REG_ESAI_TCR : REG_ESAI_RCR)
+#define REG_ESAI_xCCR(tx)	(tx ? REG_ESAI_TCCR : REG_ESAI_RCCR)
+#define REG_ESAI_TSMA		0xE4
+#define REG_ESAI_TSMB		0xE8
+#define REG_ESAI_RSMA		0xEC
+#define REG_ESAI_RSMB		0xF0
+#define REG_ESAI_xSMA(tx)	(tx ? REG_ESAI_TSMA : REG_ESAI_RSMA)
+#define REG_ESAI_xSMB(tx)	(tx ? REG_ESAI_TSMB : REG_ESAI_RSMB)
+#define REG_ESAI_PRRC		0xF8
+#define REG_ESAI_PCRC		0xFC
+
+/* ESAI Control Register -- REG_ESAI_ECR 0x8 */
+#define ESAI_ECR_ETI_SHIFT	19
+#define ESAI_ECR_ETI_MASK	(1 << ESAI_ECR_ETI_SHIFT)
+#define ESAI_ECR_ETI		(1 << ESAI_ECR_ETI_SHIFT)
+#define ESAI_ECR_ETO_SHIFT	18
+#define ESAI_ECR_ETO_MASK	(1 << ESAI_ECR_ETO_SHIFT)
+#define ESAI_ECR_ETO		(1 << ESAI_ECR_ETO_SHIFT)
+#define ESAI_ECR_ERI_SHIFT	17
+#define ESAI_ECR_ERI_MASK	(1 << ESAI_ECR_ERI_SHIFT)
+#define ESAI_ECR_ERI		(1 << ESAI_ECR_ERI_SHIFT)
+#define ESAI_ECR_ERO_SHIFT	16
+#define ESAI_ECR_ERO_MASK	(1 << ESAI_ECR_ERO_SHIFT)
+#define ESAI_ECR_ERO		(1 << ESAI_ECR_ERO_SHIFT)
+#define ESAI_ECR_ERST_SHIFT	1
+#define ESAI_ECR_ERST_MASK	(1 << ESAI_ECR_ERST_SHIFT)
+#define ESAI_ECR_ERST		(1 << ESAI_ECR_ERST_SHIFT)
+#define ESAI_ECR_ESAIEN_SHIFT	0
+#define ESAI_ECR_ESAIEN_MASK	(1 << ESAI_ECR_ESAIEN_SHIFT)
+#define ESAI_ECR_ESAIEN		(1 << ESAI_ECR_ESAIEN_SHIFT)
+
+/* ESAI Status Register -- REG_ESAI_ESR 0xC */
+#define ESAI_ESR_TINIT_SHIFT	10
+#define ESAI_ESR_TINIT_MASK	(1 << ESAI_ESR_TINIT_SHIFT)
+#define ESAI_ESR_TINIT		(1 << ESAI_ESR_TINIT_SHIFT)
+#define ESAI_ESR_RFF_SHIFT	9
+#define ESAI_ESR_RFF_MASK	(1 << ESAI_ESR_RFF_SHIFT)
+#define ESAI_ESR_RFF		(1 << ESAI_ESR_RFF_SHIFT)
+#define ESAI_ESR_TFE_SHIFT	8
+#define ESAI_ESR_TFE_MASK	(1 << ESAI_ESR_TFE_SHIFT)
+#define ESAI_ESR_TFE		(1 << ESAI_ESR_TFE_SHIFT)
+#define ESAI_ESR_TLS_SHIFT	7
+#define ESAI_ESR_TLS_MASK	(1 << ESAI_ESR_TLS_SHIFT)
+#define ESAI_ESR_TLS		(1 << ESAI_ESR_TLS_SHIFT)
+#define ESAI_ESR_TDE_SHIFT	6
+#define ESAI_ESR_TDE_MASK	(1 << ESAI_ESR_TDE_SHIFT)
+#define ESAI_ESR_TDE		(1 << ESAI_ESR_TDE_SHIFT)
+#define ESAI_ESR_TED_SHIFT	5
+#define ESAI_ESR_TED_MASK	(1 << ESAI_ESR_TED_SHIFT)
+#define ESAI_ESR_TED		(1 << ESAI_ESR_TED_SHIFT)
+#define ESAI_ESR_TD_SHIFT	4
+#define ESAI_ESR_TD_MASK	(1 << ESAI_ESR_TD_SHIFT)
+#define ESAI_ESR_TD		(1 << ESAI_ESR_TD_SHIFT)
+#define ESAI_ESR_RLS_SHIFT	3
+#define ESAI_ESR_RLS_MASK	(1 << ESAI_ESR_RLS_SHIFT)
+#define ESAI_ESR_RLS		(1 << ESAI_ESR_RLS_SHIFT)
+#define ESAI_ESR_RDE_SHIFT	2
+#define ESAI_ESR_RDE_MASK	(1 << ESAI_ESR_RDE_SHIFT)
+#define ESAI_ESR_RDE		(1 << ESAI_ESR_RDE_SHIFT)
+#define ESAI_ESR_RED_SHIFT	1
+#define ESAI_ESR_RED_MASK	(1 << ESAI_ESR_RED_SHIFT)
+#define ESAI_ESR_RED		(1 << ESAI_ESR_RED_SHIFT)
+#define ESAI_ESR_RD_SHIFT	0
+#define ESAI_ESR_RD_MASK	(1 << ESAI_ESR_RD_SHIFT)
+#define ESAI_ESR_RD		(1 << ESAI_ESR_RD_SHIFT)
+
+/*
+ * Transmit FIFO Configuration Register -- REG_ESAI_TFCR 0x10
+ * Receive FIFO Configuration Register -- REG_ESAI_RFCR 0x18
+ */
+#define ESAI_xFCR_TIEN_SHIFT	19
+#define ESAI_xFCR_TIEN_MASK	(1 << ESAI_xFCR_TIEN_SHIFT)
+#define ESAI_xFCR_TIEN		(1 << ESAI_xFCR_TIEN_SHIFT)
+#define ESAI_xFCR_REXT_SHIFT	19
+#define ESAI_xFCR_REXT_MASK	(1 << ESAI_xFCR_REXT_SHIFT)
+#define ESAI_xFCR_REXT		(1 << ESAI_xFCR_REXT_SHIFT)
+#define ESAI_xFCR_xWA_SHIFT	16
+#define ESAI_xFCR_xWA_WIDTH	3
+#define ESAI_xFCR_xWA_MASK	(((1 << ESAI_xFCR_xWA_WIDTH) - 1) << ESAI_xFCR_xWA_SHIFT)
+#define ESAI_xFCR_xWA(v)	(((8 - ((v) >> 2)) << ESAI_xFCR_xWA_SHIFT) & ESAI_xFCR_xWA_MASK)
+#define ESAI_xFCR_xFWM_SHIFT	8
+#define ESAI_xFCR_xFWM_WIDTH	8
+#define ESAI_xFCR_xFWM_MASK	(((1 << ESAI_xFCR_xFWM_WIDTH) - 1) << ESAI_xFCR_xFWM_SHIFT)
+#define ESAI_xFCR_xFWM(v)	((((v) - 1) << ESAI_xFCR_xFWM_SHIFT) & ESAI_xFCR_xFWM_MASK)
+#define ESAI_xFCR_xE_SHIFT	2
+#define ESAI_xFCR_TE_WIDTH	6
+#define ESAI_xFCR_RE_WIDTH	4
+#define ESAI_xFCR_TE_MASK	(((1 << ESAI_xFCR_TE_WIDTH) - 1) << ESAI_xFCR_xE_SHIFT)
+#define ESAI_xFCR_RE_MASK	(((1 << ESAI_xFCR_RE_WIDTH) - 1) << ESAI_xFCR_xE_SHIFT)
+#define ESAI_xFCR_TE(x) 	((ESAI_xFCR_TE_MASK >> (ESAI_xFCR_TE_WIDTH - x)) & ESAI_xFCR_TE_MASK)
+#define ESAI_xFCR_RE(x) 	((ESAI_xFCR_RE_MASK >> (ESAI_xFCR_RE_WIDTH - x)) & ESAI_xFCR_RE_MASK)
+#define ESAI_xFCR_xFR_SHIFT	1
+#define ESAI_xFCR_xFR_MASK	(1 << ESAI_xFCR_xFR_SHIFT)
+#define ESAI_xFCR_xFR		(1 << ESAI_xFCR_xFR_SHIFT)
+#define ESAI_xFCR_xFEN_SHIFT	0
+#define ESAI_xFCR_xFEN_MASK	(1 << ESAI_xFCR_xFEN_SHIFT)
+#define ESAI_xFCR_xFEN		(1 << ESAI_xFCR_xFEN_SHIFT)
+
+/*
+ * Transmit FIFO Status Register -- REG_ESAI_TFSR 0x14
+ * Receive FIFO Status Register --REG_ESAI_RFSR 0x1C
+ */
+#define ESAI_xFSR_NTFO_SHIFT	12
+#define ESAI_xFSR_NRFI_SHIFT	12
+#define ESAI_xFSR_NTFI_SHIFT	8
+#define ESAI_xFSR_NRFO_SHIFT	8
+#define ESAI_xFSR_NTFx_WIDTH	3
+#define ESAI_xFSR_NRFx_WIDTH	2
+#define ESAI_xFSR_NTFO_MASK	(((1 << ESAI_xFSR_NTFx_WIDTH) - 1) << ESAI_xFSR_NTFO_SHIFT)
+#define ESAI_xFSR_NTFI_MASK	(((1 << ESAI_xFSR_NTFx_WIDTH) - 1) << ESAI_xFSR_NTFI_SHIFT)
+#define ESAI_xFSR_NRFO_MASK	(((1 << ESAI_xFSR_NRFx_WIDTH) - 1) << ESAI_xFSR_NRFO_SHIFT)
+#define ESAI_xFSR_NRFI_MASK	(((1 << ESAI_xFSR_NRFx_WIDTH) - 1) << ESAI_xFSR_NRFI_SHIFT)
+#define ESAI_xFSR_xFCNT_SHIFT	0
+#define ESAI_xFSR_xFCNT_WIDTH	8
+#define ESAI_xFSR_xFCNT_MASK	(((1 << ESAI_xFSR_xFCNT_WIDTH) - 1) << ESAI_xFSR_xFCNT_SHIFT)
+
+/* ESAI Transmit Slot Register -- REG_ESAI_TSR 0x98 */
+#define ESAI_TSR_SHIFT		0
+#define ESAI_TSR_WIDTH		24
+#define ESAI_TSR_MASK		(((1 << ESAI_TSR_WIDTH) - 1) << ESAI_TSR_SHIFT)
+
+/* Serial Audio Interface Status Register -- REG_ESAI_SAISR 0xCC */
+#define ESAI_SAISR_TODFE_SHIFT	17
+#define ESAI_SAISR_TODFE_MASK	(1 << ESAI_SAISR_TODFE_SHIFT)
+#define ESAI_SAISR_TODFE	(1 << ESAI_SAISR_TODFE_SHIFT)
+#define ESAI_SAISR_TEDE_SHIFT	16
+#define ESAI_SAISR_TEDE_MASK	(1 << ESAI_SAISR_TEDE_SHIFT)
+#define ESAI_SAISR_TEDE		(1 << ESAI_SAISR_TEDE_SHIFT)
+#define ESAI_SAISR_TDE_SHIFT	15
+#define ESAI_SAISR_TDE_MASK	(1 << ESAI_SAISR_TDE_SHIFT)
+#define ESAI_SAISR_TDE		(1 << ESAI_SAISR_TDE_SHIFT)
+#define ESAI_SAISR_TUE_SHIFT	14
+#define ESAI_SAISR_TUE_MASK	(1 << ESAI_SAISR_TUE_SHIFT)
+#define ESAI_SAISR_TUE		(1 << ESAI_SAISR_TUE_SHIFT)
+#define ESAI_SAISR_TFS_SHIFT	13
+#define ESAI_SAISR_TFS_MASK	(1 << ESAI_SAISR_TFS_SHIFT)
+#define ESAI_SAISR_TFS		(1 << ESAI_SAISR_TFS_SHIFT)
+#define ESAI_SAISR_RODF_SHIFT	10
+#define ESAI_SAISR_RODF_MASK	(1 << ESAI_SAISR_RODF_SHIFT)
+#define ESAI_SAISR_RODF		(1 << ESAI_SAISR_RODF_SHIFT)
+#define ESAI_SAISR_REDF_SHIFT	9
+#define ESAI_SAISR_REDF_MASK	(1 << ESAI_SAISR_REDF_SHIFT)
+#define ESAI_SAISR_REDF		(1 << ESAI_SAISR_REDF_SHIFT)
+#define ESAI_SAISR_RDF_SHIFT	8
+#define ESAI_SAISR_RDF_MASK	(1 << ESAI_SAISR_RDF_SHIFT)
+#define ESAI_SAISR_RDF		(1 << ESAI_SAISR_RDF_SHIFT)
+#define ESAI_SAISR_ROE_SHIFT	7
+#define ESAI_SAISR_ROE_MASK	(1 << ESAI_SAISR_ROE_SHIFT)
+#define ESAI_SAISR_ROE		(1 << ESAI_SAISR_ROE_SHIFT)
+#define ESAI_SAISR_RFS_SHIFT	6
+#define ESAI_SAISR_RFS_MASK	(1 << ESAI_SAISR_RFS_SHIFT)
+#define ESAI_SAISR_RFS		(1 << ESAI_SAISR_RFS_SHIFT)
+#define ESAI_SAISR_IF2_SHIFT	2
+#define ESAI_SAISR_IF2_MASK	(1 << ESAI_SAISR_IF2_SHIFT)
+#define ESAI_SAISR_IF2		(1 << ESAI_SAISR_IF2_SHIFT)
+#define ESAI_SAISR_IF1_SHIFT	1
+#define ESAI_SAISR_IF1_MASK	(1 << ESAI_SAISR_IF1_SHIFT)
+#define ESAI_SAISR_IF1		(1 << ESAI_SAISR_IF1_SHIFT)
+#define ESAI_SAISR_IF0_SHIFT	0
+#define ESAI_SAISR_IF0_MASK	(1 << ESAI_SAISR_IF0_SHIFT)
+#define ESAI_SAISR_IF0		(1 << ESAI_SAISR_IF0_SHIFT)
+
+/* Serial Audio Interface Control Register -- REG_ESAI_SAICR 0xD0 */
+#define ESAI_SAICR_ALC_SHIFT	8
+#define ESAI_SAICR_ALC_MASK	(1 << ESAI_SAICR_ALC_SHIFT)
+#define ESAI_SAICR_ALC		(1 << ESAI_SAICR_ALC_SHIFT)
+#define ESAI_SAICR_TEBE_SHIFT	7
+#define ESAI_SAICR_TEBE_MASK	(1 << ESAI_SAICR_TEBE_SHIFT)
+#define ESAI_SAICR_TEBE		(1 << ESAI_SAICR_TEBE_SHIFT)
+#define ESAI_SAICR_SYNC_SHIFT	6
+#define ESAI_SAICR_SYNC_MASK	(1 << ESAI_SAICR_SYNC_SHIFT)
+#define ESAI_SAICR_SYNC		(1 << ESAI_SAICR_SYNC_SHIFT)
+#define ESAI_SAICR_OF2_SHIFT	2
+#define ESAI_SAICR_OF2_MASK	(1 << ESAI_SAICR_OF2_SHIFT)
+#define ESAI_SAICR_OF2		(1 << ESAI_SAICR_OF2_SHIFT)
+#define ESAI_SAICR_OF1_SHIFT	1
+#define ESAI_SAICR_OF1_MASK	(1 << ESAI_SAICR_OF1_SHIFT)
+#define ESAI_SAICR_OF1		(1 << ESAI_SAICR_OF1_SHIFT)
+#define ESAI_SAICR_OF0_SHIFT	0
+#define ESAI_SAICR_OF0_MASK	(1 << ESAI_SAICR_OF0_SHIFT)
+#define ESAI_SAICR_OF0		(1 << ESAI_SAICR_OF0_SHIFT)
+
+/*
+ * Transmit Control Register -- REG_ESAI_TCR 0xD4
+ * Receive Control Register -- REG_ESAI_RCR 0xDC
+ */
+#define ESAI_xCR_xLIE_SHIFT	23
+#define ESAI_xCR_xLIE_MASK	(1 << ESAI_xCR_xLIE_SHIFT)
+#define ESAI_xCR_xLIE		(1 << ESAI_xCR_xLIE_SHIFT)
+#define ESAI_xCR_xIE_SHIFT	22
+#define ESAI_xCR_xIE_MASK	(1 << ESAI_xCR_xIE_SHIFT)
+#define ESAI_xCR_xIE		(1 << ESAI_xCR_xIE_SHIFT)
+#define ESAI_xCR_xEDIE_SHIFT	21
+#define ESAI_xCR_xEDIE_MASK	(1 << ESAI_xCR_xEDIE_SHIFT)
+#define ESAI_xCR_xEDIE		(1 << ESAI_xCR_xEDIE_SHIFT)
+#define ESAI_xCR_xEIE_SHIFT	20
+#define ESAI_xCR_xEIE_MASK	(1 << ESAI_xCR_xEIE_SHIFT)
+#define ESAI_xCR_xEIE		(1 << ESAI_xCR_xEIE_SHIFT)
+#define ESAI_xCR_xPR_SHIFT	19
+#define ESAI_xCR_xPR_MASK	(1 << ESAI_xCR_xPR_SHIFT)
+#define ESAI_xCR_xPR		(1 << ESAI_xCR_xPR_SHIFT)
+#define ESAI_xCR_PADC_SHIFT	17
+#define ESAI_xCR_PADC_MASK	(1 << ESAI_xCR_PADC_SHIFT)
+#define ESAI_xCR_PADC		(1 << ESAI_xCR_PADC_SHIFT)
+#define ESAI_xCR_xFSR_SHIFT	16
+#define ESAI_xCR_xFSR_MASK	(1 << ESAI_xCR_xFSR_SHIFT)
+#define ESAI_xCR_xFSR		(1 << ESAI_xCR_xFSR_SHIFT)
+#define ESAI_xCR_xFSL_SHIFT	15
+#define ESAI_xCR_xFSL_MASK	(1 << ESAI_xCR_xFSL_SHIFT)
+#define ESAI_xCR_xFSL		(1 << ESAI_xCR_xFSL_SHIFT)
+#define ESAI_xCR_xSWS_SHIFT	10
+#define ESAI_xCR_xSWS_WIDTH	5
+#define ESAI_xCR_xSWS_MASK	(((1 << ESAI_xCR_xSWS_WIDTH) - 1) << ESAI_xCR_xSWS_SHIFT)
+#define ESAI_xCR_xSWS(s, w)	((w < 24 ? (s - w + ((w - 8) >> 2)) : (s < 32 ? 0x1e : 0x1f)) << ESAI_xCR_xSWS_SHIFT)
+#define ESAI_xCR_xMOD_SHIFT	8
+#define ESAI_xCR_xMOD_WIDTH	2
+#define ESAI_xCR_xMOD_MASK	(((1 << ESAI_xCR_xMOD_WIDTH) - 1) << ESAI_xCR_xMOD_SHIFT)
+#define ESAI_xCR_xMOD_ONDEMAND	(0x1 << ESAI_xCR_xMOD_SHIFT)
+#define ESAI_xCR_xMOD_NETWORK	(0x1 << ESAI_xCR_xMOD_SHIFT)
+#define ESAI_xCR_xMOD_AC97	(0x3 << ESAI_xCR_xMOD_SHIFT)
+#define ESAI_xCR_xWA_SHIFT	7
+#define ESAI_xCR_xWA_MASK	(1 << ESAI_xCR_xWA_SHIFT)
+#define ESAI_xCR_xWA		(1 << ESAI_xCR_xWA_SHIFT)
+#define ESAI_xCR_xSHFD_SHIFT	6
+#define ESAI_xCR_xSHFD_MASK	(1 << ESAI_xCR_xSHFD_SHIFT)
+#define ESAI_xCR_xSHFD		(1 << ESAI_xCR_xSHFD_SHIFT)
+#define ESAI_xCR_xE_SHIFT	0
+#define ESAI_xCR_TE_WIDTH	6
+#define ESAI_xCR_RE_WIDTH	4
+#define ESAI_xCR_TE_MASK	(((1 << ESAI_xCR_TE_WIDTH) - 1) << ESAI_xCR_xE_SHIFT)
+#define ESAI_xCR_RE_MASK	(((1 << ESAI_xCR_RE_WIDTH) - 1) << ESAI_xCR_xE_SHIFT)
+#define ESAI_xCR_TE(x) 		((ESAI_xCR_TE_MASK >> (ESAI_xCR_TE_WIDTH - x)) & ESAI_xCR_TE_MASK)
+#define ESAI_xCR_RE(x) 		((ESAI_xCR_RE_MASK >> (ESAI_xCR_RE_WIDTH - x)) & ESAI_xCR_RE_MASK)
+
+/*
+ * Transmit Clock Control Register -- REG_ESAI_TCCR 0xD8
+ * Receive Clock Control Register -- REG_ESAI_RCCR 0xE0
+ */
+#define ESAI_xCCR_xHCKD_SHIFT	23
+#define ESAI_xCCR_xHCKD_MASK	(1 << ESAI_xCCR_xHCKD_SHIFT)
+#define ESAI_xCCR_xHCKD		(1 << ESAI_xCCR_xHCKD_SHIFT)
+#define ESAI_xCCR_xFSD_SHIFT	22
+#define ESAI_xCCR_xFSD_MASK	(1 << ESAI_xCCR_xFSD_SHIFT)
+#define ESAI_xCCR_xFSD		(1 << ESAI_xCCR_xFSD_SHIFT)
+#define ESAI_xCCR_xCKD_SHIFT	21
+#define ESAI_xCCR_xCKD_MASK	(1 << ESAI_xCCR_xCKD_SHIFT)
+#define ESAI_xCCR_xCKD		(1 << ESAI_xCCR_xCKD_SHIFT)
+#define ESAI_xCCR_xHCKP_SHIFT	20
+#define ESAI_xCCR_xHCKP_MASK	(1 << ESAI_xCCR_xHCKP_SHIFT)
+#define ESAI_xCCR_xHCKP		(1 << ESAI_xCCR_xHCKP_SHIFT)
+#define ESAI_xCCR_xFSP_SHIFT	19
+#define ESAI_xCCR_xFSP_MASK	(1 << ESAI_xCCR_xFSP_SHIFT)
+#define ESAI_xCCR_xFSP		(1 << ESAI_xCCR_xFSP_SHIFT)
+#define ESAI_xCCR_xCKP_SHIFT	18
+#define ESAI_xCCR_xCKP_MASK	(1 << ESAI_xCCR_xCKP_SHIFT)
+#define ESAI_xCCR_xCKP		(1 << ESAI_xCCR_xCKP_SHIFT)
+#define ESAI_xCCR_xFP_SHIFT	14
+#define ESAI_xCCR_xFP_WIDTH	4
+#define ESAI_xCCR_xFP_MASK	(((1 << ESAI_xCCR_xFP_WIDTH) - 1) << ESAI_xCCR_xFP_SHIFT)
+#define ESAI_xCCR_xFP(v)	((((v) - 1) << ESAI_xCCR_xFP_SHIFT) & ESAI_xCCR_xFP_MASK)
+#define ESAI_xCCR_xDC_SHIFT     9
+#define ESAI_xCCR_xDC_WIDTH	5
+#define ESAI_xCCR_xDC_MASK	(((1 << ESAI_xCCR_xDC_WIDTH) - 1) << ESAI_xCCR_xDC_SHIFT)
+#define ESAI_xCCR_xDC(v)	((((v) - 1) << ESAI_xCCR_xDC_SHIFT) & ESAI_xCCR_xDC_MASK)
+#define ESAI_xCCR_xPSR_SHIFT	8
+#define ESAI_xCCR_xPSR_MASK	(1 << ESAI_xCCR_xPSR_SHIFT)
+#define ESAI_xCCR_xPSR_BYPASS	(1 << ESAI_xCCR_xPSR_SHIFT)
+#define ESAI_xCCR_xPSR_DIV8	(0 << ESAI_xCCR_xPSR_SHIFT)
+#define ESAI_xCCR_xPM_SHIFT     0
+#define ESAI_xCCR_xPM_WIDTH     8
+#define ESAI_xCCR_xPM_MASK	(((1 << ESAI_xCCR_xPM_WIDTH) - 1) << ESAI_xCCR_xPM_SHIFT)
+#define ESAI_xCCR_xPM(v)	((((v) - 1) << ESAI_xCCR_xPM_SHIFT) & ESAI_xCCR_xPM_MASK)
+
+/* Transmit Slot Mask Register A/B -- REG_ESAI_TSMA/B 0xE4 ~ 0xF0 */
+#define ESAI_xSMA_xS_SHIFT	0
+#define ESAI_xSMA_xS_WIDTH	16
+#define ESAI_xSMA_xS_MASK	(((1 << ESAI_xSMA_xS_WIDTH) - 1) << ESAI_xSMA_xS_SHIFT)
+#define ESAI_xSMA_xS(v)		((v) & ESAI_xSMA_xS_MASK)
+#define ESAI_xSMB_xS_SHIFT	0
+#define ESAI_xSMB_xS_WIDTH	16
+#define ESAI_xSMB_xS_MASK	(((1 << ESAI_xSMB_xS_WIDTH) - 1) << ESAI_xSMB_xS_SHIFT)
+#define ESAI_xSMB_xS(v)		(((v) >> ESAI_xSMA_xS_WIDTH) & ESAI_xSMB_xS_MASK)
+
+/* Port C Direction Register -- REG_ESAI_PRRC 0xF8 */
+#define ESAI_PRRC_PDC_SHIFT	0
+#define ESAI_PRRC_PDC_WIDTH	12
+#define ESAI_PRRC_PDC_MASK	(((1 << ESAI_PRRC_PDC_WIDTH) - 1) << ESAI_PRRC_PDC_SHIFT)
+#define ESAI_PRRC_PDC(v)	((v) & ESAI_PRRC_PDC_MASK)
+
+/* Port C Control Register -- REG_ESAI_PCRC 0xFC */
+#define ESAI_PCRC_PC_SHIFT	0
+#define ESAI_PCRC_PC_WIDTH	12
+#define ESAI_PCRC_PC_MASK	(((1 << ESAI_PCRC_PC_WIDTH) - 1) << ESAI_PCRC_PC_SHIFT)
+#define ESAI_PCRC_PC(v)		((v) & ESAI_PCRC_PC_MASK)
+
+#define ESAI_GPIO		0xfff
+
+/* ESAI clock source */
+#define ESAI_HCKT_FSYS		0
+#define ESAI_HCKT_EXTAL		1
+#define ESAI_HCKR_FSYS		2
+#define ESAI_HCKR_EXTAL		3
+
+/* ESAI clock divider */
+#define ESAI_TX_DIV_PSR		0
+#define ESAI_TX_DIV_PM		1
+#define ESAI_TX_DIV_FP		2
+#define ESAI_RX_DIV_PSR		3
+#define ESAI_RX_DIV_PM		4
+#define ESAI_RX_DIV_FP		5
+#endif /* _FSL_ESAI_DAI_H */
diff --git a/sound/soc/fsl/fsl_micfil.c b/sound/soc/fsl/fsl_micfil.c
new file mode 100644
index 000000000..3a03f4945
--- /dev/null
+++ b/sound/soc/fsl/fsl_micfil.c
@@ -0,0 +1,810 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright 2018 NXP
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/kobject.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/sysfs.h>
+#include <linux/types.h>
+#include <linux/dma/imx-dma.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include <sound/core.h>
+
+#include "fsl_micfil.h"
+#include "fsl_utils.h"
+
+#define MICFIL_OSR_DEFAULT	16
+
+enum quality {
+	QUALITY_HIGH,
+	QUALITY_MEDIUM,
+	QUALITY_LOW,
+	QUALITY_VLOW0,
+	QUALITY_VLOW1,
+	QUALITY_VLOW2,
+};
+
+struct fsl_micfil {
+	struct platform_device *pdev;
+	struct regmap *regmap;
+	const struct fsl_micfil_soc_data *soc;
+	struct clk *busclk;
+	struct clk *mclk;
+	struct clk *pll8k_clk;
+	struct clk *pll11k_clk;
+	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	struct sdma_peripheral_config sdmacfg;
+	unsigned int dataline;
+	char name[32];
+	int irq[MICFIL_IRQ_LINES];
+	enum quality quality;
+	int dc_remover;
+};
+
+struct fsl_micfil_soc_data {
+	unsigned int fifos;
+	unsigned int fifo_depth;
+	unsigned int dataline;
+	bool imx;
+	u64  formats;
+};
+
+static struct fsl_micfil_soc_data fsl_micfil_imx8mm = {
+	.imx = true,
+	.fifos = 8,
+	.fifo_depth = 8,
+	.dataline =  0xf,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+};
+
+static struct fsl_micfil_soc_data fsl_micfil_imx8mp = {
+	.imx = true,
+	.fifos = 8,
+	.fifo_depth = 32,
+	.dataline =  0xf,
+	.formats = SNDRV_PCM_FMTBIT_S32_LE,
+};
+
+static const struct of_device_id fsl_micfil_dt_ids[] = {
+	{ .compatible = "fsl,imx8mm-micfil", .data = &fsl_micfil_imx8mm },
+	{ .compatible = "fsl,imx8mp-micfil", .data = &fsl_micfil_imx8mp },
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_micfil_dt_ids);
+
+static const char * const micfil_quality_select_texts[] = {
+	[QUALITY_HIGH] = "High",
+	[QUALITY_MEDIUM] = "Medium",
+	[QUALITY_LOW] = "Low",
+	[QUALITY_VLOW0] = "VLow0",
+	[QUALITY_VLOW1] = "Vlow1",
+	[QUALITY_VLOW2] = "Vlow2",
+};
+
+static const struct soc_enum fsl_micfil_quality_enum =
+	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(micfil_quality_select_texts),
+			    micfil_quality_select_texts);
+
+static DECLARE_TLV_DB_SCALE(gain_tlv, 0, 100, 0);
+
+static int micfil_set_quality(struct fsl_micfil *micfil)
+{
+	u32 qsel;
+
+	switch (micfil->quality) {
+	case QUALITY_HIGH:
+		qsel = MICFIL_QSEL_HIGH_QUALITY;
+		break;
+	case QUALITY_MEDIUM:
+		qsel = MICFIL_QSEL_MEDIUM_QUALITY;
+		break;
+	case QUALITY_LOW:
+		qsel = MICFIL_QSEL_LOW_QUALITY;
+		break;
+	case QUALITY_VLOW0:
+		qsel = MICFIL_QSEL_VLOW0_QUALITY;
+		break;
+	case QUALITY_VLOW1:
+		qsel = MICFIL_QSEL_VLOW1_QUALITY;
+		break;
+	case QUALITY_VLOW2:
+		qsel = MICFIL_QSEL_VLOW2_QUALITY;
+		break;
+	}
+
+	return regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2,
+				  MICFIL_CTRL2_QSEL,
+				  FIELD_PREP(MICFIL_CTRL2_QSEL, qsel));
+}
+
+static int micfil_quality_get(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct fsl_micfil *micfil = snd_soc_component_get_drvdata(cmpnt);
+
+	ucontrol->value.integer.value[0] = micfil->quality;
+
+	return 0;
+}
+
+static int micfil_quality_set(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
+	struct fsl_micfil *micfil = snd_soc_component_get_drvdata(cmpnt);
+
+	micfil->quality = ucontrol->value.integer.value[0];
+
+	return micfil_set_quality(micfil);
+}
+
+static const struct snd_kcontrol_new fsl_micfil_snd_controls[] = {
+	SOC_SINGLE_SX_TLV("CH0 Volume", REG_MICFIL_OUT_CTRL,
+			  MICFIL_OUTGAIN_CHX_SHIFT(0), 0x8, 0xF, gain_tlv),
+	SOC_SINGLE_SX_TLV("CH1 Volume", REG_MICFIL_OUT_CTRL,
+			  MICFIL_OUTGAIN_CHX_SHIFT(1), 0x8, 0xF, gain_tlv),
+	SOC_SINGLE_SX_TLV("CH2 Volume", REG_MICFIL_OUT_CTRL,
+			  MICFIL_OUTGAIN_CHX_SHIFT(2), 0x8, 0xF, gain_tlv),
+	SOC_SINGLE_SX_TLV("CH3 Volume", REG_MICFIL_OUT_CTRL,
+			  MICFIL_OUTGAIN_CHX_SHIFT(3), 0x8, 0xF, gain_tlv),
+	SOC_SINGLE_SX_TLV("CH4 Volume", REG_MICFIL_OUT_CTRL,
+			  MICFIL_OUTGAIN_CHX_SHIFT(4), 0x8, 0xF, gain_tlv),
+	SOC_SINGLE_SX_TLV("CH5 Volume", REG_MICFIL_OUT_CTRL,
+			  MICFIL_OUTGAIN_CHX_SHIFT(5), 0x8, 0xF, gain_tlv),
+	SOC_SINGLE_SX_TLV("CH6 Volume", REG_MICFIL_OUT_CTRL,
+			  MICFIL_OUTGAIN_CHX_SHIFT(6), 0x8, 0xF, gain_tlv),
+	SOC_SINGLE_SX_TLV("CH7 Volume", REG_MICFIL_OUT_CTRL,
+			  MICFIL_OUTGAIN_CHX_SHIFT(7), 0x8, 0xF, gain_tlv),
+	SOC_ENUM_EXT("MICFIL Quality Select",
+		     fsl_micfil_quality_enum,
+		     micfil_quality_get, micfil_quality_set),
+};
+
+/* The SRES is a self-negated bit which provides the CPU with the
+ * capability to initialize the PDM Interface module through the
+ * slave-bus interface. This bit always reads as zero, and this
+ * bit is only effective when MDIS is cleared
+ */
+static int fsl_micfil_reset(struct device *dev)
+{
+	struct fsl_micfil *micfil = dev_get_drvdata(dev);
+	int ret;
+
+	ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1,
+				MICFIL_CTRL1_MDIS);
+	if (ret)
+		return ret;
+
+	ret = regmap_set_bits(micfil->regmap, REG_MICFIL_CTRL1,
+			      MICFIL_CTRL1_SRES);
+	if (ret)
+		return ret;
+
+	/*
+	 * SRES is self-cleared bit, but REG_MICFIL_CTRL1 is defined
+	 * as non-volatile register, so SRES still remain in regmap
+	 * cache after set, that every update of REG_MICFIL_CTRL1,
+	 * software reset happens. so clear it explicitly.
+	 */
+	ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1,
+				MICFIL_CTRL1_SRES);
+	if (ret)
+		return ret;
+
+	/*
+	 * Set SRES should clear CHnF flags, But even add delay here
+	 * the CHnF may not be cleared sometimes, so clear CHnF explicitly.
+	 */
+	ret = regmap_write_bits(micfil->regmap, REG_MICFIL_STAT, 0xFF, 0xFF);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int fsl_micfil_startup(struct snd_pcm_substream *substream,
+			      struct snd_soc_dai *dai)
+{
+	struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai);
+
+	if (!micfil) {
+		dev_err(dai->dev, "micfil dai priv_data not set\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int fsl_micfil_trigger(struct snd_pcm_substream *substream, int cmd,
+			      struct snd_soc_dai *dai)
+{
+	struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai);
+	struct device *dev = &micfil->pdev->dev;
+	int ret;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		ret = fsl_micfil_reset(dev);
+		if (ret) {
+			dev_err(dev, "failed to soft reset\n");
+			return ret;
+		}
+
+		/* DMA Interrupt Selection - DISEL bits
+		 * 00 - DMA and IRQ disabled
+		 * 01 - DMA req enabled
+		 * 10 - IRQ enabled
+		 * 11 - reserved
+		 */
+		ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1,
+				MICFIL_CTRL1_DISEL,
+				FIELD_PREP(MICFIL_CTRL1_DISEL, MICFIL_CTRL1_DISEL_DMA));
+		if (ret)
+			return ret;
+
+		/* Enable the module */
+		ret = regmap_set_bits(micfil->regmap, REG_MICFIL_CTRL1,
+				      MICFIL_CTRL1_PDMIEN);
+		if (ret)
+			return ret;
+
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		/* Disable the module */
+		ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1,
+					MICFIL_CTRL1_PDMIEN);
+		if (ret)
+			return ret;
+
+		ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1,
+				MICFIL_CTRL1_DISEL,
+				FIELD_PREP(MICFIL_CTRL1_DISEL, MICFIL_CTRL1_DISEL_DISABLE));
+		if (ret)
+			return ret;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int fsl_micfil_reparent_rootclk(struct fsl_micfil *micfil, unsigned int sample_rate)
+{
+	struct device *dev = &micfil->pdev->dev;
+	u64 ratio = sample_rate;
+	struct clk *clk;
+	int ret;
+
+	/* Get root clock */
+	clk = micfil->mclk;
+
+	/* Disable clock first, for it was enabled by pm_runtime */
+	clk_disable_unprepare(clk);
+	fsl_asoc_reparent_pll_clocks(dev, clk, micfil->pll8k_clk,
+				     micfil->pll11k_clk, ratio);
+	ret = clk_prepare_enable(clk);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int fsl_micfil_hw_params(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params,
+				struct snd_soc_dai *dai)
+{
+	struct fsl_micfil *micfil = snd_soc_dai_get_drvdata(dai);
+	unsigned int channels = params_channels(params);
+	unsigned int rate = params_rate(params);
+	int clk_div = 8;
+	int osr = MICFIL_OSR_DEFAULT;
+	int ret;
+
+	/* 1. Disable the module */
+	ret = regmap_clear_bits(micfil->regmap, REG_MICFIL_CTRL1,
+				MICFIL_CTRL1_PDMIEN);
+	if (ret)
+		return ret;
+
+	/* enable channels */
+	ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL1,
+				 0xFF, ((1 << channels) - 1));
+	if (ret)
+		return ret;
+
+	ret = fsl_micfil_reparent_rootclk(micfil, rate);
+	if (ret)
+		return ret;
+
+	ret = clk_set_rate(micfil->mclk, rate * clk_div * osr * 8);
+	if (ret)
+		return ret;
+
+	ret = micfil_set_quality(micfil);
+	if (ret)
+		return ret;
+
+	ret = regmap_update_bits(micfil->regmap, REG_MICFIL_CTRL2,
+				 MICFIL_CTRL2_CLKDIV | MICFIL_CTRL2_CICOSR,
+				 FIELD_PREP(MICFIL_CTRL2_CLKDIV, clk_div) |
+				 FIELD_PREP(MICFIL_CTRL2_CICOSR, 16 - osr));
+
+	micfil->dma_params_rx.peripheral_config = &micfil->sdmacfg;
+	micfil->dma_params_rx.peripheral_size = sizeof(micfil->sdmacfg);
+	micfil->sdmacfg.n_fifos_src = channels;
+	micfil->sdmacfg.sw_done = true;
+	micfil->dma_params_rx.maxburst = channels * MICFIL_DMA_MAXBURST_RX;
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops fsl_micfil_dai_ops = {
+	.startup = fsl_micfil_startup,
+	.trigger = fsl_micfil_trigger,
+	.hw_params = fsl_micfil_hw_params,
+};
+
+static int fsl_micfil_dai_probe(struct snd_soc_dai *cpu_dai)
+{
+	struct fsl_micfil *micfil = dev_get_drvdata(cpu_dai->dev);
+	struct device *dev = cpu_dai->dev;
+	unsigned int val = 0;
+	int ret, i;
+
+	micfil->quality = QUALITY_VLOW0;
+
+	/* set default gain to 2 */
+	regmap_write(micfil->regmap, REG_MICFIL_OUT_CTRL, 0x22222222);
+
+	/* set DC Remover in bypass mode*/
+	for (i = 0; i < MICFIL_OUTPUT_CHANNELS; i++)
+		val |= MICFIL_DC_BYPASS << MICFIL_DC_CHX_SHIFT(i);
+	ret = regmap_update_bits(micfil->regmap, REG_MICFIL_DC_CTRL,
+				 MICFIL_DC_CTRL_CONFIG, val);
+	if (ret) {
+		dev_err(dev, "failed to set DC Remover mode bits\n");
+		return ret;
+	}
+	micfil->dc_remover = MICFIL_DC_BYPASS;
+
+	snd_soc_dai_init_dma_data(cpu_dai, NULL,
+				  &micfil->dma_params_rx);
+
+	/* FIFO Watermark Control - FIFOWMK*/
+	ret = regmap_update_bits(micfil->regmap, REG_MICFIL_FIFO_CTRL,
+			MICFIL_FIFO_CTRL_FIFOWMK,
+			FIELD_PREP(MICFIL_FIFO_CTRL_FIFOWMK, micfil->soc->fifo_depth - 1));
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver fsl_micfil_dai = {
+	.probe = fsl_micfil_dai_probe,
+	.capture = {
+		.stream_name = "CPU-Capture",
+		.channels_min = 1,
+		.channels_max = 8,
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.ops = &fsl_micfil_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_micfil_component = {
+	.name		= "fsl-micfil-dai",
+	.controls       = fsl_micfil_snd_controls,
+	.num_controls   = ARRAY_SIZE(fsl_micfil_snd_controls),
+	.legacy_dai_naming      = 1,
+};
+
+/* REGMAP */
+static const struct reg_default fsl_micfil_reg_defaults[] = {
+	{REG_MICFIL_CTRL1,		0x00000000},
+	{REG_MICFIL_CTRL2,		0x00000000},
+	{REG_MICFIL_STAT,		0x00000000},
+	{REG_MICFIL_FIFO_CTRL,		0x00000007},
+	{REG_MICFIL_FIFO_STAT,		0x00000000},
+	{REG_MICFIL_DATACH0,		0x00000000},
+	{REG_MICFIL_DATACH1,		0x00000000},
+	{REG_MICFIL_DATACH2,		0x00000000},
+	{REG_MICFIL_DATACH3,		0x00000000},
+	{REG_MICFIL_DATACH4,		0x00000000},
+	{REG_MICFIL_DATACH5,		0x00000000},
+	{REG_MICFIL_DATACH6,		0x00000000},
+	{REG_MICFIL_DATACH7,		0x00000000},
+	{REG_MICFIL_DC_CTRL,		0x00000000},
+	{REG_MICFIL_OUT_CTRL,		0x00000000},
+	{REG_MICFIL_OUT_STAT,		0x00000000},
+	{REG_MICFIL_VAD0_CTRL1,		0x00000000},
+	{REG_MICFIL_VAD0_CTRL2,		0x000A0000},
+	{REG_MICFIL_VAD0_STAT,		0x00000000},
+	{REG_MICFIL_VAD0_SCONFIG,	0x00000000},
+	{REG_MICFIL_VAD0_NCONFIG,	0x80000000},
+	{REG_MICFIL_VAD0_NDATA,		0x00000000},
+	{REG_MICFIL_VAD0_ZCD,		0x00000004},
+};
+
+static bool fsl_micfil_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_MICFIL_CTRL1:
+	case REG_MICFIL_CTRL2:
+	case REG_MICFIL_STAT:
+	case REG_MICFIL_FIFO_CTRL:
+	case REG_MICFIL_FIFO_STAT:
+	case REG_MICFIL_DATACH0:
+	case REG_MICFIL_DATACH1:
+	case REG_MICFIL_DATACH2:
+	case REG_MICFIL_DATACH3:
+	case REG_MICFIL_DATACH4:
+	case REG_MICFIL_DATACH5:
+	case REG_MICFIL_DATACH6:
+	case REG_MICFIL_DATACH7:
+	case REG_MICFIL_DC_CTRL:
+	case REG_MICFIL_OUT_CTRL:
+	case REG_MICFIL_OUT_STAT:
+	case REG_MICFIL_VAD0_CTRL1:
+	case REG_MICFIL_VAD0_CTRL2:
+	case REG_MICFIL_VAD0_STAT:
+	case REG_MICFIL_VAD0_SCONFIG:
+	case REG_MICFIL_VAD0_NCONFIG:
+	case REG_MICFIL_VAD0_NDATA:
+	case REG_MICFIL_VAD0_ZCD:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_micfil_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_MICFIL_CTRL1:
+	case REG_MICFIL_CTRL2:
+	case REG_MICFIL_STAT:		/* Write 1 to Clear */
+	case REG_MICFIL_FIFO_CTRL:
+	case REG_MICFIL_FIFO_STAT:	/* Write 1 to Clear */
+	case REG_MICFIL_DC_CTRL:
+	case REG_MICFIL_OUT_CTRL:
+	case REG_MICFIL_OUT_STAT:	/* Write 1 to Clear */
+	case REG_MICFIL_VAD0_CTRL1:
+	case REG_MICFIL_VAD0_CTRL2:
+	case REG_MICFIL_VAD0_STAT:	/* Write 1 to Clear */
+	case REG_MICFIL_VAD0_SCONFIG:
+	case REG_MICFIL_VAD0_NCONFIG:
+	case REG_MICFIL_VAD0_ZCD:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_micfil_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_MICFIL_STAT:
+	case REG_MICFIL_DATACH0:
+	case REG_MICFIL_DATACH1:
+	case REG_MICFIL_DATACH2:
+	case REG_MICFIL_DATACH3:
+	case REG_MICFIL_DATACH4:
+	case REG_MICFIL_DATACH5:
+	case REG_MICFIL_DATACH6:
+	case REG_MICFIL_DATACH7:
+	case REG_MICFIL_VAD0_STAT:
+	case REG_MICFIL_VAD0_NDATA:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config fsl_micfil_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+
+	.max_register = REG_MICFIL_VAD0_ZCD,
+	.reg_defaults = fsl_micfil_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(fsl_micfil_reg_defaults),
+	.readable_reg = fsl_micfil_readable_reg,
+	.volatile_reg = fsl_micfil_volatile_reg,
+	.writeable_reg = fsl_micfil_writeable_reg,
+	.cache_type = REGCACHE_RBTREE,
+};
+
+/* END OF REGMAP */
+
+static irqreturn_t micfil_isr(int irq, void *devid)
+{
+	struct fsl_micfil *micfil = (struct fsl_micfil *)devid;
+	struct platform_device *pdev = micfil->pdev;
+	u32 stat_reg;
+	u32 fifo_stat_reg;
+	u32 ctrl1_reg;
+	bool dma_enabled;
+	int i;
+
+	regmap_read(micfil->regmap, REG_MICFIL_STAT, &stat_reg);
+	regmap_read(micfil->regmap, REG_MICFIL_CTRL1, &ctrl1_reg);
+	regmap_read(micfil->regmap, REG_MICFIL_FIFO_STAT, &fifo_stat_reg);
+
+	dma_enabled = FIELD_GET(MICFIL_CTRL1_DISEL, ctrl1_reg) == MICFIL_CTRL1_DISEL_DMA;
+
+	/* Channel 0-7 Output Data Flags */
+	for (i = 0; i < MICFIL_OUTPUT_CHANNELS; i++) {
+		if (stat_reg & MICFIL_STAT_CHXF(i))
+			dev_dbg(&pdev->dev,
+				"Data available in Data Channel %d\n", i);
+		/* if DMA is not enabled, field must be written with 1
+		 * to clear
+		 */
+		if (!dma_enabled)
+			regmap_write_bits(micfil->regmap,
+					  REG_MICFIL_STAT,
+					  MICFIL_STAT_CHXF(i),
+					  1);
+	}
+
+	for (i = 0; i < MICFIL_FIFO_NUM; i++) {
+		if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_OVER(i))
+			dev_dbg(&pdev->dev,
+				"FIFO Overflow Exception flag for channel %d\n",
+				i);
+
+		if (fifo_stat_reg & MICFIL_FIFO_STAT_FIFOX_UNDER(i))
+			dev_dbg(&pdev->dev,
+				"FIFO Underflow Exception flag for channel %d\n",
+				i);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t micfil_err_isr(int irq, void *devid)
+{
+	struct fsl_micfil *micfil = (struct fsl_micfil *)devid;
+	struct platform_device *pdev = micfil->pdev;
+	u32 stat_reg;
+
+	regmap_read(micfil->regmap, REG_MICFIL_STAT, &stat_reg);
+
+	if (stat_reg & MICFIL_STAT_BSY_FIL)
+		dev_dbg(&pdev->dev, "isr: Decimation Filter is running\n");
+
+	if (stat_reg & MICFIL_STAT_FIR_RDY)
+		dev_dbg(&pdev->dev, "isr: FIR Filter Data ready\n");
+
+	if (stat_reg & MICFIL_STAT_LOWFREQF) {
+		dev_dbg(&pdev->dev, "isr: ipg_clk_app is too low\n");
+		regmap_write_bits(micfil->regmap, REG_MICFIL_STAT,
+				  MICFIL_STAT_LOWFREQF, 1);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static int fsl_micfil_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct fsl_micfil *micfil;
+	struct resource *res;
+	void __iomem *regs;
+	int ret, i;
+
+	micfil = devm_kzalloc(&pdev->dev, sizeof(*micfil), GFP_KERNEL);
+	if (!micfil)
+		return -ENOMEM;
+
+	micfil->pdev = pdev;
+	strncpy(micfil->name, np->name, sizeof(micfil->name) - 1);
+
+	micfil->soc = of_device_get_match_data(&pdev->dev);
+
+	/* ipg_clk is used to control the registers
+	 * ipg_clk_app is used to operate the filter
+	 */
+	micfil->mclk = devm_clk_get(&pdev->dev, "ipg_clk_app");
+	if (IS_ERR(micfil->mclk)) {
+		dev_err(&pdev->dev, "failed to get core clock: %ld\n",
+			PTR_ERR(micfil->mclk));
+		return PTR_ERR(micfil->mclk);
+	}
+
+	micfil->busclk = devm_clk_get(&pdev->dev, "ipg_clk");
+	if (IS_ERR(micfil->busclk)) {
+		dev_err(&pdev->dev, "failed to get ipg clock: %ld\n",
+			PTR_ERR(micfil->busclk));
+		return PTR_ERR(micfil->busclk);
+	}
+
+	fsl_asoc_get_pll_clocks(&pdev->dev, &micfil->pll8k_clk,
+				&micfil->pll11k_clk);
+
+	/* init regmap */
+	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	micfil->regmap = devm_regmap_init_mmio(&pdev->dev,
+					       regs,
+					       &fsl_micfil_regmap_config);
+	if (IS_ERR(micfil->regmap)) {
+		dev_err(&pdev->dev, "failed to init MICFIL regmap: %ld\n",
+			PTR_ERR(micfil->regmap));
+		return PTR_ERR(micfil->regmap);
+	}
+
+	/* dataline mask for RX */
+	ret = of_property_read_u32_index(np,
+					 "fsl,dataline",
+					 0,
+					 &micfil->dataline);
+	if (ret)
+		micfil->dataline = 1;
+
+	if (micfil->dataline & ~micfil->soc->dataline) {
+		dev_err(&pdev->dev, "dataline setting error, Mask is 0x%X\n",
+			micfil->soc->dataline);
+		return -EINVAL;
+	}
+
+	/* get IRQs */
+	for (i = 0; i < MICFIL_IRQ_LINES; i++) {
+		micfil->irq[i] = platform_get_irq(pdev, i);
+		if (micfil->irq[i] < 0)
+			return micfil->irq[i];
+	}
+
+	/* Digital Microphone interface interrupt */
+	ret = devm_request_irq(&pdev->dev, micfil->irq[0],
+			       micfil_isr, IRQF_SHARED,
+			       micfil->name, micfil);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to claim mic interface irq %u\n",
+			micfil->irq[0]);
+		return ret;
+	}
+
+	/* Digital Microphone interface error interrupt */
+	ret = devm_request_irq(&pdev->dev, micfil->irq[1],
+			       micfil_err_isr, IRQF_SHARED,
+			       micfil->name, micfil);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to claim mic interface error irq %u\n",
+			micfil->irq[1]);
+		return ret;
+	}
+
+	micfil->dma_params_rx.chan_name = "rx";
+	micfil->dma_params_rx.addr = res->start + REG_MICFIL_DATACH0;
+	micfil->dma_params_rx.maxburst = MICFIL_DMA_MAXBURST_RX;
+
+	platform_set_drvdata(pdev, micfil);
+
+	pm_runtime_enable(&pdev->dev);
+	regcache_cache_only(micfil->regmap, true);
+
+	/*
+	 * Register platform component before registering cpu dai for there
+	 * is not defer probe for platform component in snd_soc_add_pcm_runtime().
+	 */
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to pcm register\n");
+		goto err_pm_disable;
+	}
+
+	fsl_micfil_dai.capture.formats = micfil->soc->formats;
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_micfil_component,
+					      &fsl_micfil_dai, 1);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register component %s\n",
+			fsl_micfil_component.name);
+		goto err_pm_disable;
+	}
+
+	return ret;
+
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+
+	return ret;
+}
+
+static void fsl_micfil_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+}
+
+static int __maybe_unused fsl_micfil_runtime_suspend(struct device *dev)
+{
+	struct fsl_micfil *micfil = dev_get_drvdata(dev);
+
+	regcache_cache_only(micfil->regmap, true);
+
+	clk_disable_unprepare(micfil->mclk);
+	clk_disable_unprepare(micfil->busclk);
+
+	return 0;
+}
+
+static int __maybe_unused fsl_micfil_runtime_resume(struct device *dev)
+{
+	struct fsl_micfil *micfil = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(micfil->busclk);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_prepare_enable(micfil->mclk);
+	if (ret < 0) {
+		clk_disable_unprepare(micfil->busclk);
+		return ret;
+	}
+
+	regcache_cache_only(micfil->regmap, false);
+	regcache_mark_dirty(micfil->regmap);
+	regcache_sync(micfil->regmap);
+
+	return 0;
+}
+
+static int __maybe_unused fsl_micfil_suspend(struct device *dev)
+{
+	pm_runtime_force_suspend(dev);
+
+	return 0;
+}
+
+static int __maybe_unused fsl_micfil_resume(struct device *dev)
+{
+	pm_runtime_force_resume(dev);
+
+	return 0;
+}
+
+static const struct dev_pm_ops fsl_micfil_pm_ops = {
+	SET_RUNTIME_PM_OPS(fsl_micfil_runtime_suspend,
+			   fsl_micfil_runtime_resume,
+			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(fsl_micfil_suspend,
+				fsl_micfil_resume)
+};
+
+static struct platform_driver fsl_micfil_driver = {
+	.probe = fsl_micfil_probe,
+	.remove_new = fsl_micfil_remove,
+	.driver = {
+		.name = "fsl-micfil-dai",
+		.pm = &fsl_micfil_pm_ops,
+		.of_match_table = fsl_micfil_dt_ids,
+	},
+};
+module_platform_driver(fsl_micfil_driver);
+
+MODULE_AUTHOR("Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>");
+MODULE_DESCRIPTION("NXP PDM Microphone Interface (MICFIL) driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/fsl_micfil.h b/sound/soc/fsl/fsl_micfil.h
new file mode 100644
index 000000000..d60285dd0
--- /dev/null
+++ b/sound/soc/fsl/fsl_micfil.h
@@ -0,0 +1,145 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * PDM Microphone Interface for the NXP i.MX SoC
+ * Copyright 2018 NXP
+ */
+
+#ifndef _FSL_MICFIL_H
+#define _FSL_MICFIL_H
+
+/* MICFIL Register Map */
+#define REG_MICFIL_CTRL1		0x00
+#define REG_MICFIL_CTRL2		0x04
+#define REG_MICFIL_STAT			0x08
+#define REG_MICFIL_FIFO_CTRL		0x10
+#define REG_MICFIL_FIFO_STAT		0x14
+#define REG_MICFIL_DATACH0		0x24
+#define REG_MICFIL_DATACH1		0x28
+#define REG_MICFIL_DATACH2		0x2C
+#define REG_MICFIL_DATACH3		0x30
+#define REG_MICFIL_DATACH4		0x34
+#define REG_MICFIL_DATACH5		0x38
+#define REG_MICFIL_DATACH6		0x3C
+#define REG_MICFIL_DATACH7		0x40
+#define REG_MICFIL_DC_CTRL		0x64
+#define REG_MICFIL_OUT_CTRL		0x74
+#define REG_MICFIL_OUT_STAT		0x7C
+#define REG_MICFIL_VAD0_CTRL1		0x90
+#define REG_MICFIL_VAD0_CTRL2		0x94
+#define REG_MICFIL_VAD0_STAT		0x98
+#define REG_MICFIL_VAD0_SCONFIG		0x9C
+#define REG_MICFIL_VAD0_NCONFIG		0xA0
+#define REG_MICFIL_VAD0_NDATA		0xA4
+#define REG_MICFIL_VAD0_ZCD		0xA8
+
+/* MICFIL Control Register 1 -- REG_MICFILL_CTRL1 0x00 */
+#define MICFIL_CTRL1_MDIS		BIT(31)
+#define MICFIL_CTRL1_DOZEN		BIT(30)
+#define MICFIL_CTRL1_PDMIEN		BIT(29)
+#define MICFIL_CTRL1_DBG		BIT(28)
+#define MICFIL_CTRL1_SRES		BIT(27)
+#define MICFIL_CTRL1_DBGE		BIT(26)
+
+#define MICFIL_CTRL1_DISEL_DISABLE	0
+#define MICFIL_CTRL1_DISEL_DMA		1
+#define MICFIL_CTRL1_DISEL_IRQ		2
+#define MICFIL_CTRL1_DISEL		GENMASK(25, 24)
+#define MICFIL_CTRL1_ERREN		BIT(23)
+#define MICFIL_CTRL1_CHEN(ch)		BIT(ch)
+
+/* MICFIL Control Register 2 -- REG_MICFILL_CTRL2 0x04 */
+#define MICFIL_CTRL2_QSEL_SHIFT		25
+#define MICFIL_CTRL2_QSEL		GENMASK(27, 25)
+#define MICFIL_QSEL_MEDIUM_QUALITY	0
+#define MICFIL_QSEL_HIGH_QUALITY	1
+#define MICFIL_QSEL_LOW_QUALITY		7
+#define MICFIL_QSEL_VLOW0_QUALITY	6
+#define MICFIL_QSEL_VLOW1_QUALITY	5
+#define MICFIL_QSEL_VLOW2_QUALITY	4
+
+#define MICFIL_CTRL2_CICOSR		GENMASK(19, 16)
+#define MICFIL_CTRL2_CLKDIV		GENMASK(7, 0)
+
+/* MICFIL Status Register -- REG_MICFIL_STAT 0x08 */
+#define MICFIL_STAT_BSY_FIL		BIT(31)
+#define MICFIL_STAT_FIR_RDY		BIT(30)
+#define MICFIL_STAT_LOWFREQF		BIT(29)
+#define MICFIL_STAT_CHXF(ch)		BIT(ch)
+
+/* MICFIL FIFO Control Register -- REG_MICFIL_FIFO_CTRL 0x10 */
+#define MICFIL_FIFO_CTRL_FIFOWMK	GENMASK(2, 0)
+
+/* MICFIL FIFO Status Register -- REG_MICFIL_FIFO_STAT 0x14 */
+#define MICFIL_FIFO_STAT_FIFOX_OVER(ch)	BIT(ch)
+#define MICFIL_FIFO_STAT_FIFOX_UNDER(ch)	BIT((ch) + 8)
+
+/* MICFIL DC Remover Control Register -- REG_MICFIL_DC_CTRL */
+#define MICFIL_DC_CTRL_CONFIG          GENMASK(15, 0)
+#define MICFIL_DC_CHX_SHIFT(ch)        ((ch) << 1)
+#define MICFIL_DC_CHX(ch)              GENMASK((((ch) << 1) + 1), ((ch) << 1))
+#define MICFIL_DC_CUTOFF_21HZ          0
+#define MICFIL_DC_CUTOFF_83HZ          1
+#define MICFIL_DC_CUTOFF_152Hz         2
+#define MICFIL_DC_BYPASS               3
+
+/* MICFIL HWVAD0 Control 1 Register -- REG_MICFIL_VAD0_CTRL1*/
+#define MICFIL_VAD0_CTRL1_CHSEL		GENMASK(26, 24)
+#define MICFIL_VAD0_CTRL1_CICOSR	GENMASK(19, 16)
+#define MICFIL_VAD0_CTRL1_INITT		GENMASK(12, 8)
+#define MICFIL_VAD0_CTRL1_ST10		BIT(4)
+#define MICFIL_VAD0_CTRL1_ERIE		BIT(3)
+#define MICFIL_VAD0_CTRL1_IE		BIT(2)
+#define MICFIL_VAD0_CTRL1_RST		BIT(1)
+#define MICFIL_VAD0_CTRL1_EN		BIT(0)
+
+/* MICFIL HWVAD0 Control 2 Register -- REG_MICFIL_VAD0_CTRL2*/
+#define MICFIL_VAD0_CTRL2_FRENDIS	BIT(31)
+#define MICFIL_VAD0_CTRL2_PREFEN	BIT(30)
+#define MICFIL_VAD0_CTRL2_FOUTDIS	BIT(28)
+#define MICFIL_VAD0_CTRL2_FRAMET	GENMASK(21, 16)
+#define MICFIL_VAD0_CTRL2_INPGAIN	GENMASK(11, 8)
+#define MICFIL_VAD0_CTRL2_HPF		GENMASK(1, 0)
+
+/* MICFIL HWVAD0 Signal CONFIG Register -- REG_MICFIL_VAD0_SCONFIG */
+#define MICFIL_VAD0_SCONFIG_SFILEN		BIT(31)
+#define MICFIL_VAD0_SCONFIG_SMAXEN		BIT(30)
+#define MICFIL_VAD0_SCONFIG_SGAIN		GENMASK(3, 0)
+
+/* MICFIL HWVAD0 Noise CONFIG Register -- REG_MICFIL_VAD0_NCONFIG */
+#define MICFIL_VAD0_NCONFIG_NFILAUT		BIT(31)
+#define MICFIL_VAD0_NCONFIG_NMINEN		BIT(30)
+#define MICFIL_VAD0_NCONFIG_NDECEN		BIT(29)
+#define MICFIL_VAD0_NCONFIG_NOREN		BIT(28)
+#define MICFIL_VAD0_NCONFIG_NFILADJ		GENMASK(12, 8)
+#define MICFIL_VAD0_NCONFIG_NGAIN		GENMASK(3, 0)
+
+/* MICFIL HWVAD0 Zero-Crossing Detector - REG_MICFIL_VAD0_ZCD */
+#define MICFIL_VAD0_ZCD_ZCDTH		GENMASK(25, 16)
+#define MICFIL_VAD0_ZCD_ZCDADJ		GENMASK(11, 8)
+#define MICFIL_VAD0_ZCD_ZCDAND		BIT(4)
+#define MICFIL_VAD0_ZCD_ZCDAUT		BIT(2)
+#define MICFIL_VAD0_ZCD_ZCDEN		BIT(0)
+
+/* MICFIL HWVAD0 Status Register - REG_MICFIL_VAD0_STAT */
+#define MICFIL_VAD0_STAT_INITF		BIT(31)
+#define MICFIL_VAD0_STAT_INSATF		BIT(16)
+#define MICFIL_VAD0_STAT_EF		BIT(15)
+#define MICFIL_VAD0_STAT_IF		BIT(0)
+
+/* MICFIL Output Control Register */
+#define MICFIL_OUTGAIN_CHX_SHIFT(v)	(4 * (v))
+
+/* Constants */
+#define MICFIL_OUTPUT_CHANNELS		8
+#define MICFIL_FIFO_NUM			8
+
+#define FIFO_PTRWID			3
+#define FIFO_LEN			BIT(FIFO_PTRWID)
+
+#define MICFIL_IRQ_LINES		2
+#define MICFIL_MAX_RETRY		25
+#define MICFIL_SLEEP_MIN		90000 /* in us */
+#define MICFIL_SLEEP_MAX		100000 /* in us */
+#define MICFIL_DMA_MAXBURST_RX		6
+
+#endif /* _FSL_MICFIL_H */
diff --git a/sound/soc/fsl/fsl_mqs.c b/sound/soc/fsl/fsl_mqs.c
new file mode 100644
index 000000000..32d20d351
--- /dev/null
+++ b/sound/soc/fsl/fsl_mqs.c
@@ -0,0 +1,371 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ALSA SoC IMX MQS driver
+//
+// Copyright (C) 2014-2015 Freescale Semiconductor, Inc.
+// Copyright 2019 NXP
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
+#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+#include <sound/soc.h>
+#include <sound/pcm.h>
+#include <sound/initval.h>
+
+#define REG_MQS_CTRL		0x00
+
+#define MQS_EN_MASK			(0x1 << 28)
+#define MQS_EN_SHIFT			(28)
+#define MQS_SW_RST_MASK			(0x1 << 24)
+#define MQS_SW_RST_SHIFT		(24)
+#define MQS_OVERSAMPLE_MASK		(0x1 << 20)
+#define MQS_OVERSAMPLE_SHIFT		(20)
+#define MQS_CLK_DIV_MASK		(0xFF << 0)
+#define MQS_CLK_DIV_SHIFT		(0)
+
+/**
+ * struct fsl_mqs_soc_data - soc specific data
+ *
+ * @use_gpr: control register is in General Purpose Register group
+ * @ctrl_off: control register offset
+ * @en_mask: enable bit mask
+ * @en_shift: enable bit shift
+ * @rst_mask: reset bit mask
+ * @rst_shift: reset bit shift
+ * @osr_mask: oversample bit mask
+ * @osr_shift: oversample bit shift
+ * @div_mask: clock divider mask
+ * @div_shift: clock divider bit shift
+ */
+struct fsl_mqs_soc_data {
+	bool use_gpr;
+	int  ctrl_off;
+	int  en_mask;
+	int  en_shift;
+	int  rst_mask;
+	int  rst_shift;
+	int  osr_mask;
+	int  osr_shift;
+	int  div_mask;
+	int  div_shift;
+};
+
+/* codec private data */
+struct fsl_mqs {
+	struct regmap *regmap;
+	struct clk *mclk;
+	struct clk *ipg;
+	const struct fsl_mqs_soc_data *soc;
+
+	unsigned int reg_mqs_ctrl;
+};
+
+#define FSL_MQS_RATES	(SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
+#define FSL_MQS_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
+
+static int fsl_mqs_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params,
+			     struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct fsl_mqs *mqs_priv = snd_soc_component_get_drvdata(component);
+	unsigned long mclk_rate;
+	int div, res;
+	int lrclk;
+
+	mclk_rate = clk_get_rate(mqs_priv->mclk);
+	lrclk = params_rate(params);
+
+	/*
+	 * mclk_rate / (oversample(32,64) * FS * 2 * divider ) = repeat_rate;
+	 * if repeat_rate is 8, mqs can achieve better quality.
+	 * oversample rate is fix to 32 currently.
+	 */
+	div = mclk_rate / (32 * lrclk * 2 * 8);
+	res = mclk_rate % (32 * lrclk * 2 * 8);
+
+	if (res == 0 && div > 0 && div <= 256) {
+		regmap_update_bits(mqs_priv->regmap, mqs_priv->soc->ctrl_off,
+				   mqs_priv->soc->div_mask,
+				   (div - 1) << mqs_priv->soc->div_shift);
+		regmap_update_bits(mqs_priv->regmap, mqs_priv->soc->ctrl_off,
+				   mqs_priv->soc->osr_mask, 0);
+	} else {
+		dev_err(component->dev, "can't get proper divider\n");
+	}
+
+	return 0;
+}
+
+static int fsl_mqs_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	/* Only LEFT_J & SLAVE mode is supported. */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_LEFT_J:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_CBC_CFC:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int fsl_mqs_startup(struct snd_pcm_substream *substream,
+			   struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct fsl_mqs *mqs_priv = snd_soc_component_get_drvdata(component);
+
+	regmap_update_bits(mqs_priv->regmap, mqs_priv->soc->ctrl_off,
+			   mqs_priv->soc->en_mask,
+			   1 << mqs_priv->soc->en_shift);
+	return 0;
+}
+
+static void fsl_mqs_shutdown(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct snd_soc_component *component = dai->component;
+	struct fsl_mqs *mqs_priv = snd_soc_component_get_drvdata(component);
+
+	regmap_update_bits(mqs_priv->regmap, mqs_priv->soc->ctrl_off,
+			   mqs_priv->soc->en_mask, 0);
+}
+
+static const struct snd_soc_component_driver soc_codec_fsl_mqs = {
+	.idle_bias_on = 1,
+};
+
+static const struct snd_soc_dai_ops fsl_mqs_dai_ops = {
+	.startup = fsl_mqs_startup,
+	.shutdown = fsl_mqs_shutdown,
+	.hw_params = fsl_mqs_hw_params,
+	.set_fmt = fsl_mqs_set_dai_fmt,
+};
+
+static struct snd_soc_dai_driver fsl_mqs_dai = {
+	.name		= "fsl-mqs-dai",
+	.playback	= {
+		.stream_name	= "Playback",
+		.channels_min	= 2,
+		.channels_max	= 2,
+		.rates		= FSL_MQS_RATES,
+		.formats	= FSL_MQS_FORMATS,
+	},
+	.ops = &fsl_mqs_dai_ops,
+};
+
+static const struct regmap_config fsl_mqs_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = REG_MQS_CTRL,
+	.cache_type = REGCACHE_NONE,
+};
+
+static int fsl_mqs_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *gpr_np = NULL;
+	struct fsl_mqs *mqs_priv;
+	void __iomem *regs;
+	int ret;
+
+	mqs_priv = devm_kzalloc(&pdev->dev, sizeof(*mqs_priv), GFP_KERNEL);
+	if (!mqs_priv)
+		return -ENOMEM;
+
+	/* On i.MX6sx the MQS control register is in GPR domain
+	 * But in i.MX8QM/i.MX8QXP the control register is moved
+	 * to its own domain.
+	 */
+	mqs_priv->soc = of_device_get_match_data(&pdev->dev);
+
+	if (mqs_priv->soc->use_gpr) {
+		gpr_np = of_parse_phandle(np, "gpr", 0);
+		if (!gpr_np) {
+			dev_err(&pdev->dev, "failed to get gpr node by phandle\n");
+			return -EINVAL;
+		}
+
+		mqs_priv->regmap = syscon_node_to_regmap(gpr_np);
+		of_node_put(gpr_np);
+		if (IS_ERR(mqs_priv->regmap)) {
+			dev_err(&pdev->dev, "failed to get gpr regmap\n");
+			return PTR_ERR(mqs_priv->regmap);
+		}
+	} else {
+		regs = devm_platform_ioremap_resource(pdev, 0);
+		if (IS_ERR(regs))
+			return PTR_ERR(regs);
+
+		mqs_priv->regmap = devm_regmap_init_mmio_clk(&pdev->dev,
+							     "core",
+							     regs,
+							     &fsl_mqs_regmap_config);
+		if (IS_ERR(mqs_priv->regmap)) {
+			dev_err(&pdev->dev, "failed to init regmap: %ld\n",
+				PTR_ERR(mqs_priv->regmap));
+			return PTR_ERR(mqs_priv->regmap);
+		}
+
+		mqs_priv->ipg = devm_clk_get(&pdev->dev, "core");
+		if (IS_ERR(mqs_priv->ipg)) {
+			dev_err(&pdev->dev, "failed to get the clock: %ld\n",
+				PTR_ERR(mqs_priv->ipg));
+			return PTR_ERR(mqs_priv->ipg);
+		}
+	}
+
+	mqs_priv->mclk = devm_clk_get(&pdev->dev, "mclk");
+	if (IS_ERR(mqs_priv->mclk)) {
+		dev_err(&pdev->dev, "failed to get the clock: %ld\n",
+			PTR_ERR(mqs_priv->mclk));
+		return PTR_ERR(mqs_priv->mclk);
+	}
+
+	dev_set_drvdata(&pdev->dev, mqs_priv);
+	pm_runtime_enable(&pdev->dev);
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &soc_codec_fsl_mqs,
+			&fsl_mqs_dai, 1);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int fsl_mqs_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int fsl_mqs_runtime_resume(struct device *dev)
+{
+	struct fsl_mqs *mqs_priv = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(mqs_priv->ipg);
+	if (ret) {
+		dev_err(dev, "failed to enable ipg clock\n");
+		return ret;
+	}
+
+	ret = clk_prepare_enable(mqs_priv->mclk);
+	if (ret) {
+		dev_err(dev, "failed to enable mclk clock\n");
+		clk_disable_unprepare(mqs_priv->ipg);
+		return ret;
+	}
+
+	regmap_write(mqs_priv->regmap, mqs_priv->soc->ctrl_off, mqs_priv->reg_mqs_ctrl);
+	return 0;
+}
+
+static int fsl_mqs_runtime_suspend(struct device *dev)
+{
+	struct fsl_mqs *mqs_priv = dev_get_drvdata(dev);
+
+	regmap_read(mqs_priv->regmap, mqs_priv->soc->ctrl_off, &mqs_priv->reg_mqs_ctrl);
+
+	clk_disable_unprepare(mqs_priv->mclk);
+	clk_disable_unprepare(mqs_priv->ipg);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops fsl_mqs_pm_ops = {
+	SET_RUNTIME_PM_OPS(fsl_mqs_runtime_suspend,
+			   fsl_mqs_runtime_resume,
+			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static const struct fsl_mqs_soc_data fsl_mqs_imx8qm_data = {
+	.use_gpr = false,
+	.ctrl_off = REG_MQS_CTRL,
+	.en_mask  = MQS_EN_MASK,
+	.en_shift = MQS_EN_SHIFT,
+	.rst_mask = MQS_SW_RST_MASK,
+	.rst_shift = MQS_SW_RST_SHIFT,
+	.osr_mask = MQS_OVERSAMPLE_MASK,
+	.osr_shift = MQS_OVERSAMPLE_SHIFT,
+	.div_mask = MQS_CLK_DIV_MASK,
+	.div_shift = MQS_CLK_DIV_SHIFT,
+};
+
+static const struct fsl_mqs_soc_data fsl_mqs_imx6sx_data = {
+	.use_gpr = true,
+	.ctrl_off = IOMUXC_GPR2,
+	.en_mask  = IMX6SX_GPR2_MQS_EN_MASK,
+	.en_shift = IMX6SX_GPR2_MQS_EN_SHIFT,
+	.rst_mask = IMX6SX_GPR2_MQS_SW_RST_MASK,
+	.rst_shift = IMX6SX_GPR2_MQS_SW_RST_SHIFT,
+	.osr_mask  = IMX6SX_GPR2_MQS_OVERSAMPLE_MASK,
+	.osr_shift = IMX6SX_GPR2_MQS_OVERSAMPLE_SHIFT,
+	.div_mask  = IMX6SX_GPR2_MQS_CLK_DIV_MASK,
+	.div_shift = IMX6SX_GPR2_MQS_CLK_DIV_SHIFT,
+};
+
+static const struct fsl_mqs_soc_data fsl_mqs_imx93_data = {
+	.use_gpr = true,
+	.ctrl_off = 0x20,
+	.en_mask  = BIT(1),
+	.en_shift = 1,
+	.rst_mask = BIT(2),
+	.rst_shift = 2,
+	.osr_mask = BIT(3),
+	.osr_shift = 3,
+	.div_mask = GENMASK(15, 8),
+	.div_shift = 8,
+};
+
+static const struct of_device_id fsl_mqs_dt_ids[] = {
+	{ .compatible = "fsl,imx8qm-mqs", .data = &fsl_mqs_imx8qm_data },
+	{ .compatible = "fsl,imx6sx-mqs", .data = &fsl_mqs_imx6sx_data },
+	{ .compatible = "fsl,imx93-mqs", .data = &fsl_mqs_imx93_data },
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_mqs_dt_ids);
+
+static struct platform_driver fsl_mqs_driver = {
+	.probe		= fsl_mqs_probe,
+	.remove		= fsl_mqs_remove,
+	.driver		= {
+		.name	= "fsl-mqs",
+		.of_match_table = fsl_mqs_dt_ids,
+		.pm = &fsl_mqs_pm_ops,
+	},
+};
+
+module_platform_driver(fsl_mqs_driver);
+
+MODULE_AUTHOR("Shengjiu Wang <Shengjiu.Wang@nxp.com>");
+MODULE_DESCRIPTION("MQS codec driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:fsl-mqs");
diff --git a/sound/soc/fsl/fsl_rpmsg.c b/sound/soc/fsl/fsl_rpmsg.c
new file mode 100644
index 000000000..5c07a8ff0
--- /dev/null
+++ b/sound/soc/fsl/fsl_rpmsg.c
@@ -0,0 +1,323 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2018-2021 NXP
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/dmaengine.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_address.h>
+#include <linux/pm_runtime.h>
+#include <linux/rpmsg.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+
+#include "fsl_rpmsg.h"
+#include "imx-pcm.h"
+
+#define FSL_RPMSG_RATES        (SNDRV_PCM_RATE_8000 | \
+				SNDRV_PCM_RATE_16000 | \
+				SNDRV_PCM_RATE_48000)
+#define FSL_RPMSG_FORMATS	SNDRV_PCM_FMTBIT_S16_LE
+
+/* 192kHz/32bit/2ch/60s size is 0x574e00 */
+#define LPA_LARGE_BUFFER_SIZE  (0x6000000)
+
+static const unsigned int fsl_rpmsg_rates[] = {
+	8000, 11025, 16000, 22050, 44100,
+	32000, 48000, 96000, 88200, 176400, 192000,
+	352800, 384000, 705600, 768000, 1411200, 2822400,
+};
+
+static const struct snd_pcm_hw_constraint_list fsl_rpmsg_rate_constraints = {
+	.count = ARRAY_SIZE(fsl_rpmsg_rates),
+	.list = fsl_rpmsg_rates,
+};
+
+static int fsl_rpmsg_hw_params(struct snd_pcm_substream *substream,
+			       struct snd_pcm_hw_params *params,
+			       struct snd_soc_dai *dai)
+{
+	struct fsl_rpmsg *rpmsg = snd_soc_dai_get_drvdata(dai);
+	struct clk *p = rpmsg->mclk, *pll = NULL, *npll = NULL;
+	u64 rate = params_rate(params);
+	int ret = 0;
+
+	/* Get current pll parent */
+	while (p && rpmsg->pll8k && rpmsg->pll11k) {
+		struct clk *pp = clk_get_parent(p);
+
+		if (clk_is_match(pp, rpmsg->pll8k) ||
+		    clk_is_match(pp, rpmsg->pll11k)) {
+			pll = pp;
+			break;
+		}
+		p = pp;
+	}
+
+	/* Switch to another pll parent if needed. */
+	if (pll) {
+		npll = (do_div(rate, 8000) ? rpmsg->pll11k : rpmsg->pll8k);
+		if (!clk_is_match(pll, npll)) {
+			ret = clk_set_parent(p, npll);
+			if (ret < 0)
+				dev_warn(dai->dev, "failed to set parent %s: %d\n",
+					 __clk_get_name(npll), ret);
+		}
+	}
+
+	if (!(rpmsg->mclk_streams & BIT(substream->stream))) {
+		ret = clk_prepare_enable(rpmsg->mclk);
+		if (ret) {
+			dev_err(dai->dev, "failed to enable mclk: %d\n", ret);
+			return ret;
+		}
+
+		rpmsg->mclk_streams |= BIT(substream->stream);
+	}
+
+	return ret;
+}
+
+static int fsl_rpmsg_hw_free(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct fsl_rpmsg *rpmsg = snd_soc_dai_get_drvdata(dai);
+
+	if (rpmsg->mclk_streams & BIT(substream->stream)) {
+		clk_disable_unprepare(rpmsg->mclk);
+		rpmsg->mclk_streams &= ~BIT(substream->stream);
+	}
+
+	return 0;
+}
+
+static int fsl_rpmsg_startup(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *cpu_dai)
+{
+	int ret;
+
+	ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
+					 SNDRV_PCM_HW_PARAM_RATE,
+					 &fsl_rpmsg_rate_constraints);
+
+	return ret;
+}
+
+static const struct snd_soc_dai_ops fsl_rpmsg_dai_ops = {
+	.startup	= fsl_rpmsg_startup,
+	.hw_params      = fsl_rpmsg_hw_params,
+	.hw_free        = fsl_rpmsg_hw_free,
+};
+
+static struct snd_soc_dai_driver fsl_rpmsg_dai = {
+	.playback = {
+		.stream_name = "CPU-Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_RPMSG_FORMATS,
+	},
+	.capture = {
+		.stream_name = "CPU-Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_RPMSG_FORMATS,
+	},
+	.symmetric_rate        = 1,
+	.symmetric_channels    = 1,
+	.symmetric_sample_bits = 1,
+	.ops = &fsl_rpmsg_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_component = {
+	.name			= "fsl-rpmsg",
+	.legacy_dai_naming	= 1,
+};
+
+static const struct fsl_rpmsg_soc_data imx7ulp_data = {
+	.rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
+		 SNDRV_PCM_RATE_48000,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+};
+
+static const struct fsl_rpmsg_soc_data imx8mm_data = {
+	.rates = SNDRV_PCM_RATE_KNOT,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_DSD_U8 |
+		   SNDRV_PCM_FMTBIT_DSD_U16_LE | SNDRV_PCM_FMTBIT_DSD_U32_LE,
+};
+
+static const struct fsl_rpmsg_soc_data imx8mn_data = {
+	.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
+		 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
+		 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
+		 SNDRV_PCM_RATE_192000,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE,
+};
+
+static const struct fsl_rpmsg_soc_data imx8mp_data = {
+	.rates = SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
+		 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |
+		 SNDRV_PCM_RATE_96000 | SNDRV_PCM_RATE_176400 |
+		 SNDRV_PCM_RATE_192000,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE,
+};
+
+static const struct of_device_id fsl_rpmsg_ids[] = {
+	{ .compatible = "fsl,imx7ulp-rpmsg-audio", .data = &imx7ulp_data},
+	{ .compatible = "fsl,imx8mm-rpmsg-audio", .data = &imx8mm_data},
+	{ .compatible = "fsl,imx8mn-rpmsg-audio", .data = &imx8mn_data},
+	{ .compatible = "fsl,imx8mp-rpmsg-audio", .data = &imx8mp_data},
+	{ .compatible = "fsl,imx8ulp-rpmsg-audio", .data = &imx7ulp_data},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, fsl_rpmsg_ids);
+
+static int fsl_rpmsg_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct fsl_rpmsg *rpmsg;
+	int ret;
+
+	rpmsg = devm_kzalloc(&pdev->dev, sizeof(struct fsl_rpmsg), GFP_KERNEL);
+	if (!rpmsg)
+		return -ENOMEM;
+
+	rpmsg->soc_data = of_device_get_match_data(&pdev->dev);
+
+	fsl_rpmsg_dai.playback.rates = rpmsg->soc_data->rates;
+	fsl_rpmsg_dai.capture.rates = rpmsg->soc_data->rates;
+	fsl_rpmsg_dai.playback.formats = rpmsg->soc_data->formats;
+	fsl_rpmsg_dai.capture.formats = rpmsg->soc_data->formats;
+
+	if (of_property_read_bool(np, "fsl,enable-lpa")) {
+		rpmsg->enable_lpa = 1;
+		rpmsg->buffer_size = LPA_LARGE_BUFFER_SIZE;
+	} else {
+		rpmsg->buffer_size = IMX_DEFAULT_DMABUF_SIZE;
+	}
+
+	/* Get the optional clocks */
+	rpmsg->ipg = devm_clk_get_optional(&pdev->dev, "ipg");
+	if (IS_ERR(rpmsg->ipg))
+		return PTR_ERR(rpmsg->ipg);
+
+	rpmsg->mclk = devm_clk_get_optional(&pdev->dev, "mclk");
+	if (IS_ERR(rpmsg->mclk))
+		return PTR_ERR(rpmsg->mclk);
+
+	rpmsg->dma = devm_clk_get_optional(&pdev->dev, "dma");
+	if (IS_ERR(rpmsg->dma))
+		return PTR_ERR(rpmsg->dma);
+
+	rpmsg->pll8k = devm_clk_get_optional(&pdev->dev, "pll8k");
+	if (IS_ERR(rpmsg->pll8k))
+		return PTR_ERR(rpmsg->pll8k);
+
+	rpmsg->pll11k = devm_clk_get_optional(&pdev->dev, "pll11k");
+	if (IS_ERR(rpmsg->pll11k))
+		return PTR_ERR(rpmsg->pll11k);
+
+	platform_set_drvdata(pdev, rpmsg);
+	pm_runtime_enable(&pdev->dev);
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_component,
+					      &fsl_rpmsg_dai, 1);
+	if (ret)
+		goto err_pm_disable;
+
+	rpmsg->card_pdev = platform_device_register_data(&pdev->dev,
+							 "imx-audio-rpmsg",
+							 PLATFORM_DEVID_NONE,
+							 NULL,
+							 0);
+	if (IS_ERR(rpmsg->card_pdev)) {
+		dev_err(&pdev->dev, "failed to register rpmsg card\n");
+		ret = PTR_ERR(rpmsg->card_pdev);
+		goto err_pm_disable;
+	}
+
+	return 0;
+
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	return ret;
+}
+
+static int fsl_rpmsg_remove(struct platform_device *pdev)
+{
+	struct fsl_rpmsg *rpmsg = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+
+	if (rpmsg->card_pdev)
+		platform_device_unregister(rpmsg->card_pdev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int fsl_rpmsg_runtime_resume(struct device *dev)
+{
+	struct fsl_rpmsg *rpmsg = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(rpmsg->ipg);
+	if (ret) {
+		dev_err(dev, "failed to enable ipg clock: %d\n", ret);
+		goto ipg_err;
+	}
+
+	ret = clk_prepare_enable(rpmsg->dma);
+	if (ret) {
+		dev_err(dev, "Failed to enable dma clock %d\n", ret);
+		goto dma_err;
+	}
+
+	return 0;
+
+dma_err:
+	clk_disable_unprepare(rpmsg->ipg);
+ipg_err:
+	return ret;
+}
+
+static int fsl_rpmsg_runtime_suspend(struct device *dev)
+{
+	struct fsl_rpmsg *rpmsg = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(rpmsg->dma);
+	clk_disable_unprepare(rpmsg->ipg);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops fsl_rpmsg_pm_ops = {
+	SET_RUNTIME_PM_OPS(fsl_rpmsg_runtime_suspend,
+			   fsl_rpmsg_runtime_resume,
+			   NULL)
+};
+
+static struct platform_driver fsl_rpmsg_driver = {
+	.probe  = fsl_rpmsg_probe,
+	.remove = fsl_rpmsg_remove,
+	.driver = {
+		.name = "fsl_rpmsg",
+		.pm = &fsl_rpmsg_pm_ops,
+		.of_match_table = fsl_rpmsg_ids,
+	},
+};
+module_platform_driver(fsl_rpmsg_driver);
+
+MODULE_DESCRIPTION("Freescale SoC Audio PRMSG CPU Interface");
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_ALIAS("platform:fsl_rpmsg");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/fsl/fsl_rpmsg.h b/sound/soc/fsl/fsl_rpmsg.h
new file mode 100644
index 000000000..b04086fbf
--- /dev/null
+++ b/sound/soc/fsl/fsl_rpmsg.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2017-2021 NXP
+ */
+
+#ifndef __FSL_RPMSG_H
+#define __FSL_RPMSG_H
+
+/*
+ * struct fsl_rpmsg_soc_data
+ * @rates: supported rates
+ * @formats: supported formats
+ */
+struct fsl_rpmsg_soc_data {
+	int rates;
+	u64 formats;
+};
+
+/*
+ * struct fsl_rpmsg - rpmsg private data
+ *
+ * @ipg: ipg clock for cpu dai (SAI)
+ * @mclk: master clock for cpu dai (SAI)
+ * @dma: clock for dma device
+ * @pll8k: parent clock for multiple of 8kHz frequency
+ * @pll11k: parent clock for multiple of 11kHz frequency
+ * @card_pdev: Platform_device pointer to register a sound card
+ * @soc_data: soc specific data
+ * @mclk_streams: Active streams that are using baudclk
+ * @force_lpa: force enable low power audio routine if condition satisfy
+ * @enable_lpa: enable low power audio routine according to dts setting
+ * @buffer_size: pre allocated dma buffer size
+ */
+struct fsl_rpmsg {
+	struct clk *ipg;
+	struct clk *mclk;
+	struct clk *dma;
+	struct clk *pll8k;
+	struct clk *pll11k;
+	struct platform_device *card_pdev;
+	const struct fsl_rpmsg_soc_data *soc_data;
+	unsigned int mclk_streams;
+	int force_lpa;
+	int enable_lpa;
+	int buffer_size;
+};
+#endif /* __FSL_RPMSG_H */
diff --git a/sound/soc/fsl/fsl_sai.c b/sound/soc/fsl/fsl_sai.c
new file mode 100644
index 000000000..cf1cd0460
--- /dev/null
+++ b/sound/soc/fsl/fsl_sai.c
@@ -0,0 +1,1741 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Freescale ALSA SoC Digital Audio Interface (SAI) driver.
+//
+// Copyright 2012-2015 Freescale Semiconductor, Inc.
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/dmaengine.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pm_qos.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
+
+#include "fsl_sai.h"
+#include "fsl_utils.h"
+#include "imx-pcm.h"
+
+#define FSL_SAI_FLAGS (FSL_SAI_CSR_SEIE |\
+		       FSL_SAI_CSR_FEIE)
+
+static const unsigned int fsl_sai_rates[] = {
+	8000, 11025, 12000, 16000, 22050,
+	24000, 32000, 44100, 48000, 64000,
+	88200, 96000, 176400, 192000, 352800,
+	384000, 705600, 768000, 1411200, 2822400,
+};
+
+static const struct snd_pcm_hw_constraint_list fsl_sai_rate_constraints = {
+	.count = ARRAY_SIZE(fsl_sai_rates),
+	.list = fsl_sai_rates,
+};
+
+/**
+ * fsl_sai_dir_is_synced - Check if stream is synced by the opposite stream
+ *
+ * SAI supports synchronous mode using bit/frame clocks of either Transmitter's
+ * or Receiver's for both streams. This function is used to check if clocks of
+ * the stream's are synced by the opposite stream.
+ *
+ * @sai: SAI context
+ * @dir: stream direction
+ */
+static inline bool fsl_sai_dir_is_synced(struct fsl_sai *sai, int dir)
+{
+	int adir = (dir == TX) ? RX : TX;
+
+	/* current dir in async mode while opposite dir in sync mode */
+	return !sai->synchronous[dir] && sai->synchronous[adir];
+}
+
+static struct pinctrl_state *fsl_sai_get_pins_state(struct fsl_sai *sai, u32 bclk)
+{
+	struct pinctrl_state *state = NULL;
+
+	if (sai->is_pdm_mode) {
+		/* DSD512@44.1kHz, DSD512@48kHz */
+		if (bclk >= 22579200)
+			state = pinctrl_lookup_state(sai->pinctrl, "dsd512");
+
+		/* Get default DSD state */
+		if (IS_ERR_OR_NULL(state))
+			state = pinctrl_lookup_state(sai->pinctrl, "dsd");
+	} else {
+		/* 706k32b2c, 768k32b2c, etc */
+		if (bclk >= 45158400)
+			state = pinctrl_lookup_state(sai->pinctrl, "pcm_b2m");
+	}
+
+	/* Get default state */
+	if (IS_ERR_OR_NULL(state))
+		state = pinctrl_lookup_state(sai->pinctrl, "default");
+
+	return state;
+}
+
+static irqreturn_t fsl_sai_isr(int irq, void *devid)
+{
+	struct fsl_sai *sai = (struct fsl_sai *)devid;
+	unsigned int ofs = sai->soc_data->reg_offset;
+	struct device *dev = &sai->pdev->dev;
+	u32 flags, xcsr, mask;
+	irqreturn_t iret = IRQ_NONE;
+
+	/*
+	 * Both IRQ status bits and IRQ mask bits are in the xCSR but
+	 * different shifts. And we here create a mask only for those
+	 * IRQs that we activated.
+	 */
+	mask = (FSL_SAI_FLAGS >> FSL_SAI_CSR_xIE_SHIFT) << FSL_SAI_CSR_xF_SHIFT;
+
+	/* Tx IRQ */
+	regmap_read(sai->regmap, FSL_SAI_TCSR(ofs), &xcsr);
+	flags = xcsr & mask;
+
+	if (flags)
+		iret = IRQ_HANDLED;
+	else
+		goto irq_rx;
+
+	if (flags & FSL_SAI_CSR_WSF)
+		dev_dbg(dev, "isr: Start of Tx word detected\n");
+
+	if (flags & FSL_SAI_CSR_SEF)
+		dev_dbg(dev, "isr: Tx Frame sync error detected\n");
+
+	if (flags & FSL_SAI_CSR_FEF)
+		dev_dbg(dev, "isr: Transmit underrun detected\n");
+
+	if (flags & FSL_SAI_CSR_FWF)
+		dev_dbg(dev, "isr: Enabled transmit FIFO is empty\n");
+
+	if (flags & FSL_SAI_CSR_FRF)
+		dev_dbg(dev, "isr: Transmit FIFO watermark has been reached\n");
+
+	flags &= FSL_SAI_CSR_xF_W_MASK;
+	xcsr &= ~FSL_SAI_CSR_xF_MASK;
+
+	if (flags)
+		regmap_write(sai->regmap, FSL_SAI_TCSR(ofs), flags | xcsr);
+
+irq_rx:
+	/* Rx IRQ */
+	regmap_read(sai->regmap, FSL_SAI_RCSR(ofs), &xcsr);
+	flags = xcsr & mask;
+
+	if (flags)
+		iret = IRQ_HANDLED;
+	else
+		goto out;
+
+	if (flags & FSL_SAI_CSR_WSF)
+		dev_dbg(dev, "isr: Start of Rx word detected\n");
+
+	if (flags & FSL_SAI_CSR_SEF)
+		dev_dbg(dev, "isr: Rx Frame sync error detected\n");
+
+	if (flags & FSL_SAI_CSR_FEF)
+		dev_dbg(dev, "isr: Receive overflow detected\n");
+
+	if (flags & FSL_SAI_CSR_FWF)
+		dev_dbg(dev, "isr: Enabled receive FIFO is full\n");
+
+	if (flags & FSL_SAI_CSR_FRF)
+		dev_dbg(dev, "isr: Receive FIFO watermark has been reached\n");
+
+	flags &= FSL_SAI_CSR_xF_W_MASK;
+	xcsr &= ~FSL_SAI_CSR_xF_MASK;
+
+	if (flags)
+		regmap_write(sai->regmap, FSL_SAI_RCSR(ofs), flags | xcsr);
+
+out:
+	return iret;
+}
+
+static int fsl_sai_set_dai_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask,
+				u32 rx_mask, int slots, int slot_width)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
+
+	sai->slots = slots;
+	sai->slot_width = slot_width;
+
+	return 0;
+}
+
+static int fsl_sai_set_dai_bclk_ratio(struct snd_soc_dai *dai,
+				      unsigned int ratio)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(dai);
+
+	sai->bclk_ratio = ratio;
+
+	return 0;
+}
+
+static int fsl_sai_set_dai_sysclk_tr(struct snd_soc_dai *cpu_dai,
+		int clk_id, unsigned int freq, bool tx)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned int ofs = sai->soc_data->reg_offset;
+	u32 val_cr2 = 0;
+
+	switch (clk_id) {
+	case FSL_SAI_CLK_BUS:
+		val_cr2 |= FSL_SAI_CR2_MSEL_BUS;
+		break;
+	case FSL_SAI_CLK_MAST1:
+		val_cr2 |= FSL_SAI_CR2_MSEL_MCLK1;
+		break;
+	case FSL_SAI_CLK_MAST2:
+		val_cr2 |= FSL_SAI_CR2_MSEL_MCLK2;
+		break;
+	case FSL_SAI_CLK_MAST3:
+		val_cr2 |= FSL_SAI_CR2_MSEL_MCLK3;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	regmap_update_bits(sai->regmap, FSL_SAI_xCR2(tx, ofs),
+			   FSL_SAI_CR2_MSEL_MASK, val_cr2);
+
+	return 0;
+}
+
+static int fsl_sai_set_mclk_rate(struct snd_soc_dai *dai, int clk_id, unsigned int freq)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(dai);
+	int ret;
+
+	fsl_asoc_reparent_pll_clocks(dai->dev, sai->mclk_clk[clk_id],
+				     sai->pll8k_clk, sai->pll11k_clk, freq);
+
+	ret = clk_set_rate(sai->mclk_clk[clk_id], freq);
+	if (ret < 0)
+		dev_err(dai->dev, "failed to set clock rate (%u): %d\n", freq, ret);
+
+	return ret;
+}
+
+static int fsl_sai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
+		int clk_id, unsigned int freq, int dir)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
+	int ret;
+
+	if (dir == SND_SOC_CLOCK_IN)
+		return 0;
+
+	if (freq > 0 && clk_id != FSL_SAI_CLK_BUS) {
+		if (clk_id < 0 || clk_id >= FSL_SAI_MCLK_MAX) {
+			dev_err(cpu_dai->dev, "Unknown clock id: %d\n", clk_id);
+			return -EINVAL;
+		}
+
+		if (IS_ERR_OR_NULL(sai->mclk_clk[clk_id])) {
+			dev_err(cpu_dai->dev, "Unassigned clock: %d\n", clk_id);
+			return -EINVAL;
+		}
+
+		if (sai->mclk_streams == 0) {
+			ret = fsl_sai_set_mclk_rate(cpu_dai, clk_id, freq);
+			if (ret < 0)
+				return ret;
+		}
+	}
+
+	ret = fsl_sai_set_dai_sysclk_tr(cpu_dai, clk_id, freq, true);
+	if (ret) {
+		dev_err(cpu_dai->dev, "Cannot set tx sysclk: %d\n", ret);
+		return ret;
+	}
+
+	ret = fsl_sai_set_dai_sysclk_tr(cpu_dai, clk_id, freq, false);
+	if (ret)
+		dev_err(cpu_dai->dev, "Cannot set rx sysclk: %d\n", ret);
+
+	return ret;
+}
+
+static int fsl_sai_set_dai_fmt_tr(struct snd_soc_dai *cpu_dai,
+				unsigned int fmt, bool tx)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned int ofs = sai->soc_data->reg_offset;
+	u32 val_cr2 = 0, val_cr4 = 0;
+
+	if (!sai->is_lsb_first)
+		val_cr4 |= FSL_SAI_CR4_MF;
+
+	sai->is_pdm_mode = false;
+	sai->is_dsp_mode = false;
+	/* DAI mode */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		/*
+		 * Frame low, 1clk before data, one word length for frame sync,
+		 * frame sync starts one serial clock cycle earlier,
+		 * that is, together with the last bit of the previous
+		 * data word.
+		 */
+		val_cr2 |= FSL_SAI_CR2_BCP;
+		val_cr4 |= FSL_SAI_CR4_FSE | FSL_SAI_CR4_FSP;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		/*
+		 * Frame high, one word length for frame sync,
+		 * frame sync asserts with the first bit of the frame.
+		 */
+		val_cr2 |= FSL_SAI_CR2_BCP;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		/*
+		 * Frame high, 1clk before data, one bit for frame sync,
+		 * frame sync starts one serial clock cycle earlier,
+		 * that is, together with the last bit of the previous
+		 * data word.
+		 */
+		val_cr2 |= FSL_SAI_CR2_BCP;
+		val_cr4 |= FSL_SAI_CR4_FSE;
+		sai->is_dsp_mode = true;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		/*
+		 * Frame high, one bit for frame sync,
+		 * frame sync asserts with the first bit of the frame.
+		 */
+		val_cr2 |= FSL_SAI_CR2_BCP;
+		sai->is_dsp_mode = true;
+		break;
+	case SND_SOC_DAIFMT_PDM:
+		val_cr2 |= FSL_SAI_CR2_BCP;
+		val_cr4 &= ~FSL_SAI_CR4_MF;
+		sai->is_pdm_mode = true;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		/* To be done */
+	default:
+		return -EINVAL;
+	}
+
+	/* DAI clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_IB_IF:
+		/* Invert both clocks */
+		val_cr2 ^= FSL_SAI_CR2_BCP;
+		val_cr4 ^= FSL_SAI_CR4_FSP;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		/* Invert bit clock */
+		val_cr2 ^= FSL_SAI_CR2_BCP;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		/* Invert frame clock */
+		val_cr4 ^= FSL_SAI_CR4_FSP;
+		break;
+	case SND_SOC_DAIFMT_NB_NF:
+		/* Nothing to do for both normal cases */
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* DAI clock provider masks */
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BP_FP:
+		val_cr2 |= FSL_SAI_CR2_BCD_MSTR;
+		val_cr4 |= FSL_SAI_CR4_FSD_MSTR;
+		sai->is_consumer_mode = false;
+		break;
+	case SND_SOC_DAIFMT_BC_FC:
+		sai->is_consumer_mode = true;
+		break;
+	case SND_SOC_DAIFMT_BP_FC:
+		val_cr2 |= FSL_SAI_CR2_BCD_MSTR;
+		sai->is_consumer_mode = false;
+		break;
+	case SND_SOC_DAIFMT_BC_FP:
+		val_cr4 |= FSL_SAI_CR4_FSD_MSTR;
+		sai->is_consumer_mode = true;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	regmap_update_bits(sai->regmap, FSL_SAI_xCR2(tx, ofs),
+			   FSL_SAI_CR2_BCP | FSL_SAI_CR2_BCD_MSTR, val_cr2);
+	regmap_update_bits(sai->regmap, FSL_SAI_xCR4(tx, ofs),
+			   FSL_SAI_CR4_MF | FSL_SAI_CR4_FSE |
+			   FSL_SAI_CR4_FSP | FSL_SAI_CR4_FSD_MSTR, val_cr4);
+
+	return 0;
+}
+
+static int fsl_sai_set_dai_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt)
+{
+	int ret;
+
+	ret = fsl_sai_set_dai_fmt_tr(cpu_dai, fmt, true);
+	if (ret) {
+		dev_err(cpu_dai->dev, "Cannot set tx format: %d\n", ret);
+		return ret;
+	}
+
+	ret = fsl_sai_set_dai_fmt_tr(cpu_dai, fmt, false);
+	if (ret)
+		dev_err(cpu_dai->dev, "Cannot set rx format: %d\n", ret);
+
+	return ret;
+}
+
+static int fsl_sai_set_bclk(struct snd_soc_dai *dai, bool tx, u32 freq)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(dai);
+	unsigned int reg, ofs = sai->soc_data->reg_offset;
+	unsigned long clk_rate;
+	u32 savediv = 0, ratio, bestdiff = freq;
+	int adir = tx ? RX : TX;
+	int dir = tx ? TX : RX;
+	u32 id;
+	bool support_1_1_ratio = sai->verid.version >= 0x0301;
+
+	/* Don't apply to consumer mode */
+	if (sai->is_consumer_mode)
+		return 0;
+
+	/*
+	 * There is no point in polling MCLK0 if it is identical to MCLK1.
+	 * And given that MQS use case has to use MCLK1 though two clocks
+	 * are the same, we simply skip MCLK0 and start to find from MCLK1.
+	 */
+	id = sai->soc_data->mclk0_is_mclk1 ? 1 : 0;
+
+	for (; id < FSL_SAI_MCLK_MAX; id++) {
+		int diff;
+
+		clk_rate = clk_get_rate(sai->mclk_clk[id]);
+		if (!clk_rate)
+			continue;
+
+		ratio = DIV_ROUND_CLOSEST(clk_rate, freq);
+		if (!ratio || ratio > 512)
+			continue;
+		if (ratio == 1 && !support_1_1_ratio)
+			continue;
+		if ((ratio & 1) && ratio > 1)
+			continue;
+
+		diff = abs((long)clk_rate - ratio * freq);
+
+		/*
+		 * Drop the source that can not be
+		 * divided into the required rate.
+		 */
+		if (diff != 0 && clk_rate / diff < 1000)
+			continue;
+
+		dev_dbg(dai->dev,
+			"ratio %d for freq %dHz based on clock %ldHz\n",
+			ratio, freq, clk_rate);
+
+
+		if (diff < bestdiff) {
+			savediv = ratio;
+			sai->mclk_id[tx] = id;
+			bestdiff = diff;
+		}
+
+		if (diff == 0)
+			break;
+	}
+
+	if (savediv == 0) {
+		dev_err(dai->dev, "failed to derive required %cx rate: %d\n",
+				tx ? 'T' : 'R', freq);
+		return -EINVAL;
+	}
+
+	dev_dbg(dai->dev, "best fit: clock id=%d, div=%d, deviation =%d\n",
+			sai->mclk_id[tx], savediv, bestdiff);
+
+	/*
+	 * 1) For Asynchronous mode, we must set RCR2 register for capture, and
+	 *    set TCR2 register for playback.
+	 * 2) For Tx sync with Rx clock, we must set RCR2 register for playback
+	 *    and capture.
+	 * 3) For Rx sync with Tx clock, we must set TCR2 register for playback
+	 *    and capture.
+	 * 4) For Tx and Rx are both Synchronous with another SAI, we just
+	 *    ignore it.
+	 */
+	if (fsl_sai_dir_is_synced(sai, adir))
+		reg = FSL_SAI_xCR2(!tx, ofs);
+	else if (!sai->synchronous[dir])
+		reg = FSL_SAI_xCR2(tx, ofs);
+	else
+		return 0;
+
+	regmap_update_bits(sai->regmap, reg, FSL_SAI_CR2_MSEL_MASK,
+			   FSL_SAI_CR2_MSEL(sai->mclk_id[tx]));
+
+	if (savediv == 1) {
+		regmap_update_bits(sai->regmap, reg,
+				   FSL_SAI_CR2_DIV_MASK | FSL_SAI_CR2_BYP,
+				   FSL_SAI_CR2_BYP);
+		if (fsl_sai_dir_is_synced(sai, adir))
+			regmap_update_bits(sai->regmap, FSL_SAI_xCR2(tx, ofs),
+					   FSL_SAI_CR2_BCI, FSL_SAI_CR2_BCI);
+		else
+			regmap_update_bits(sai->regmap, FSL_SAI_xCR2(tx, ofs),
+					   FSL_SAI_CR2_BCI, 0);
+	} else {
+		regmap_update_bits(sai->regmap, reg,
+				   FSL_SAI_CR2_DIV_MASK | FSL_SAI_CR2_BYP,
+				   savediv / 2 - 1);
+	}
+
+	return 0;
+}
+
+static int fsl_sai_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params,
+		struct snd_soc_dai *cpu_dai)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned int ofs = sai->soc_data->reg_offset;
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	unsigned int channels = params_channels(params);
+	struct snd_dmaengine_dai_dma_data *dma_params;
+	struct fsl_sai_dl_cfg *dl_cfg = sai->dl_cfg;
+	u32 word_width = params_width(params);
+	int trce_mask = 0, dl_cfg_idx = 0;
+	int dl_cfg_cnt = sai->dl_cfg_cnt;
+	u32 dl_type = FSL_SAI_DL_I2S;
+	u32 val_cr4 = 0, val_cr5 = 0;
+	u32 slots = (channels == 1) ? 2 : channels;
+	u32 slot_width = word_width;
+	int adir = tx ? RX : TX;
+	u32 pins, bclk;
+	u32 watermark;
+	int ret, i;
+
+	if (sai->slot_width)
+		slot_width = sai->slot_width;
+
+	if (sai->slots)
+		slots = sai->slots;
+	else if (sai->bclk_ratio)
+		slots = sai->bclk_ratio / slot_width;
+
+	pins = DIV_ROUND_UP(channels, slots);
+
+	/*
+	 * PDM mode, channels are independent
+	 * each channels are on one dataline/FIFO.
+	 */
+	if (sai->is_pdm_mode) {
+		pins = channels;
+		dl_type = FSL_SAI_DL_PDM;
+	}
+
+	for (i = 0; i < dl_cfg_cnt; i++) {
+		if (dl_cfg[i].type == dl_type && dl_cfg[i].pins[tx] == pins) {
+			dl_cfg_idx = i;
+			break;
+		}
+	}
+
+	if (hweight8(dl_cfg[dl_cfg_idx].mask[tx]) < pins) {
+		dev_err(cpu_dai->dev, "channel not supported\n");
+		return -EINVAL;
+	}
+
+	bclk = params_rate(params) * (sai->bclk_ratio ? sai->bclk_ratio : slots * slot_width);
+
+	if (!IS_ERR_OR_NULL(sai->pinctrl)) {
+		sai->pins_state = fsl_sai_get_pins_state(sai, bclk);
+		if (!IS_ERR_OR_NULL(sai->pins_state)) {
+			ret = pinctrl_select_state(sai->pinctrl, sai->pins_state);
+			if (ret) {
+				dev_err(cpu_dai->dev, "failed to set proper pins state: %d\n", ret);
+				return ret;
+			}
+		}
+	}
+
+	if (!sai->is_consumer_mode) {
+		ret = fsl_sai_set_bclk(cpu_dai, tx, bclk);
+		if (ret)
+			return ret;
+
+		/* Do not enable the clock if it is already enabled */
+		if (!(sai->mclk_streams & BIT(substream->stream))) {
+			ret = clk_prepare_enable(sai->mclk_clk[sai->mclk_id[tx]]);
+			if (ret)
+				return ret;
+
+			sai->mclk_streams |= BIT(substream->stream);
+		}
+	}
+
+	if (!sai->is_dsp_mode && !sai->is_pdm_mode)
+		val_cr4 |= FSL_SAI_CR4_SYWD(slot_width);
+
+	val_cr5 |= FSL_SAI_CR5_WNW(slot_width);
+	val_cr5 |= FSL_SAI_CR5_W0W(slot_width);
+
+	if (sai->is_lsb_first || sai->is_pdm_mode)
+		val_cr5 |= FSL_SAI_CR5_FBT(0);
+	else
+		val_cr5 |= FSL_SAI_CR5_FBT(word_width - 1);
+
+	val_cr4 |= FSL_SAI_CR4_FRSZ(slots);
+
+	/* Set to output mode to avoid tri-stated data pins */
+	if (tx)
+		val_cr4 |= FSL_SAI_CR4_CHMOD;
+
+	/*
+	 * For SAI provider mode, when Tx(Rx) sync with Rx(Tx) clock, Rx(Tx) will
+	 * generate bclk and frame clock for Tx(Rx), we should set RCR4(TCR4),
+	 * RCR5(TCR5) for playback(capture), or there will be sync error.
+	 */
+
+	if (!sai->is_consumer_mode && fsl_sai_dir_is_synced(sai, adir)) {
+		regmap_update_bits(sai->regmap, FSL_SAI_xCR4(!tx, ofs),
+				   FSL_SAI_CR4_SYWD_MASK | FSL_SAI_CR4_FRSZ_MASK |
+				   FSL_SAI_CR4_CHMOD_MASK,
+				   val_cr4);
+		regmap_update_bits(sai->regmap, FSL_SAI_xCR5(!tx, ofs),
+				   FSL_SAI_CR5_WNW_MASK | FSL_SAI_CR5_W0W_MASK |
+				   FSL_SAI_CR5_FBT_MASK, val_cr5);
+	}
+
+	/*
+	 * Combine mode has limation:
+	 * - Can't used for singel dataline/FIFO case except the FIFO0
+	 * - Can't used for multi dataline/FIFO case except the enabled FIFOs
+	 *   are successive and start from FIFO0
+	 *
+	 * So for common usage, all multi fifo case disable the combine mode.
+	 */
+	if (hweight8(dl_cfg[dl_cfg_idx].mask[tx]) <= 1 || sai->is_multi_fifo_dma)
+		regmap_update_bits(sai->regmap, FSL_SAI_xCR4(tx, ofs),
+				   FSL_SAI_CR4_FCOMB_MASK, 0);
+	else
+		regmap_update_bits(sai->regmap, FSL_SAI_xCR4(tx, ofs),
+				   FSL_SAI_CR4_FCOMB_MASK, FSL_SAI_CR4_FCOMB_SOFT);
+
+	dma_params = tx ? &sai->dma_params_tx : &sai->dma_params_rx;
+	dma_params->addr = sai->res->start + FSL_SAI_xDR0(tx) +
+			   dl_cfg[dl_cfg_idx].start_off[tx] * 0x4;
+
+	if (sai->is_multi_fifo_dma) {
+		sai->audio_config[tx].words_per_fifo = min(slots, channels);
+		if (tx) {
+			sai->audio_config[tx].n_fifos_dst = pins;
+			sai->audio_config[tx].stride_fifos_dst = dl_cfg[dl_cfg_idx].next_off[tx];
+		} else {
+			sai->audio_config[tx].n_fifos_src = pins;
+			sai->audio_config[tx].stride_fifos_src = dl_cfg[dl_cfg_idx].next_off[tx];
+		}
+		dma_params->maxburst = sai->audio_config[tx].words_per_fifo * pins;
+		dma_params->peripheral_config = &sai->audio_config[tx];
+		dma_params->peripheral_size = sizeof(sai->audio_config[tx]);
+
+		watermark = tx ? (sai->soc_data->fifo_depth - dma_params->maxburst) :
+				 (dma_params->maxburst - 1);
+		regmap_update_bits(sai->regmap, FSL_SAI_xCR1(tx, ofs),
+				   FSL_SAI_CR1_RFW_MASK(sai->soc_data->fifo_depth),
+				   watermark);
+	}
+
+	/* Find a proper tcre setting */
+	for (i = 0; i < sai->soc_data->pins; i++) {
+		trce_mask = (1 << (i + 1)) - 1;
+		if (hweight8(dl_cfg[dl_cfg_idx].mask[tx] & trce_mask) == pins)
+			break;
+	}
+
+	regmap_update_bits(sai->regmap, FSL_SAI_xCR3(tx, ofs),
+			   FSL_SAI_CR3_TRCE_MASK,
+			   FSL_SAI_CR3_TRCE((dl_cfg[dl_cfg_idx].mask[tx] & trce_mask)));
+
+	/*
+	 * When the TERE and FSD_MSTR enabled before configuring the word width
+	 * There will be no frame sync clock issue, because word width impact
+	 * the generation of frame sync clock.
+	 *
+	 * TERE enabled earlier only for i.MX8MP case for the hardware limitation,
+	 * We need to disable FSD_MSTR before configuring word width, then enable
+	 * FSD_MSTR bit for this specific case.
+	 */
+	if (sai->soc_data->mclk_with_tere && sai->mclk_direction_output &&
+	    !sai->is_consumer_mode)
+		regmap_update_bits(sai->regmap, FSL_SAI_xCR4(tx, ofs),
+				   FSL_SAI_CR4_FSD_MSTR, 0);
+
+	regmap_update_bits(sai->regmap, FSL_SAI_xCR4(tx, ofs),
+			   FSL_SAI_CR4_SYWD_MASK | FSL_SAI_CR4_FRSZ_MASK |
+			   FSL_SAI_CR4_CHMOD_MASK,
+			   val_cr4);
+	regmap_update_bits(sai->regmap, FSL_SAI_xCR5(tx, ofs),
+			   FSL_SAI_CR5_WNW_MASK | FSL_SAI_CR5_W0W_MASK |
+			   FSL_SAI_CR5_FBT_MASK, val_cr5);
+
+	/* Enable FSD_MSTR after configuring word width */
+	if (sai->soc_data->mclk_with_tere && sai->mclk_direction_output &&
+	    !sai->is_consumer_mode)
+		regmap_update_bits(sai->regmap, FSL_SAI_xCR4(tx, ofs),
+				   FSL_SAI_CR4_FSD_MSTR, FSL_SAI_CR4_FSD_MSTR);
+
+	regmap_write(sai->regmap, FSL_SAI_xMR(tx),
+		     ~0UL - ((1 << min(channels, slots)) - 1));
+
+	return 0;
+}
+
+static int fsl_sai_hw_free(struct snd_pcm_substream *substream,
+		struct snd_soc_dai *cpu_dai)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	unsigned int ofs = sai->soc_data->reg_offset;
+
+	/* Clear xMR to avoid channel swap with mclk_with_tere enabled case */
+	regmap_write(sai->regmap, FSL_SAI_xMR(tx), 0);
+
+	regmap_update_bits(sai->regmap, FSL_SAI_xCR3(tx, ofs),
+			   FSL_SAI_CR3_TRCE_MASK, 0);
+
+	if (!sai->is_consumer_mode &&
+			sai->mclk_streams & BIT(substream->stream)) {
+		clk_disable_unprepare(sai->mclk_clk[sai->mclk_id[tx]]);
+		sai->mclk_streams &= ~BIT(substream->stream);
+	}
+
+	return 0;
+}
+
+static void fsl_sai_config_disable(struct fsl_sai *sai, int dir)
+{
+	unsigned int ofs = sai->soc_data->reg_offset;
+	bool tx = dir == TX;
+	u32 xcsr, count = 100, mask;
+
+	if (sai->soc_data->mclk_with_tere && sai->mclk_direction_output)
+		mask = FSL_SAI_CSR_TERE;
+	else
+		mask = FSL_SAI_CSR_TERE | FSL_SAI_CSR_BCE;
+
+	regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs),
+			   mask, 0);
+
+	/* TERE will remain set till the end of current frame */
+	do {
+		udelay(10);
+		regmap_read(sai->regmap, FSL_SAI_xCSR(tx, ofs), &xcsr);
+	} while (--count && xcsr & FSL_SAI_CSR_TERE);
+
+	regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs),
+			   FSL_SAI_CSR_FR, FSL_SAI_CSR_FR);
+
+	/*
+	 * For sai master mode, after several open/close sai,
+	 * there will be no frame clock, and can't recover
+	 * anymore. Add software reset to fix this issue.
+	 * This is a hardware bug, and will be fix in the
+	 * next sai version.
+	 */
+	if (!sai->is_consumer_mode) {
+		/* Software Reset */
+		regmap_write(sai->regmap, FSL_SAI_xCSR(tx, ofs), FSL_SAI_CSR_SR);
+		/* Clear SR bit to finish the reset */
+		regmap_write(sai->regmap, FSL_SAI_xCSR(tx, ofs), 0);
+	}
+}
+
+static int fsl_sai_trigger(struct snd_pcm_substream *substream, int cmd,
+		struct snd_soc_dai *cpu_dai)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned int ofs = sai->soc_data->reg_offset;
+
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	int adir = tx ? RX : TX;
+	int dir = tx ? TX : RX;
+	u32 xcsr;
+
+	/*
+	 * Asynchronous mode: Clear SYNC for both Tx and Rx.
+	 * Rx sync with Tx clocks: Clear SYNC for Tx, set it for Rx.
+	 * Tx sync with Rx clocks: Clear SYNC for Rx, set it for Tx.
+	 */
+	regmap_update_bits(sai->regmap, FSL_SAI_TCR2(ofs), FSL_SAI_CR2_SYNC,
+			   sai->synchronous[TX] ? FSL_SAI_CR2_SYNC : 0);
+	regmap_update_bits(sai->regmap, FSL_SAI_RCR2(ofs), FSL_SAI_CR2_SYNC,
+			   sai->synchronous[RX] ? FSL_SAI_CR2_SYNC : 0);
+
+	/*
+	 * It is recommended that the transmitter is the last enabled
+	 * and the first disabled.
+	 */
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs),
+				   FSL_SAI_CSR_FRDE, FSL_SAI_CSR_FRDE);
+
+		regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs),
+				   FSL_SAI_CSR_TERE, FSL_SAI_CSR_TERE);
+		/*
+		 * Enable the opposite direction for synchronous mode
+		 * 1. Tx sync with Rx: only set RE for Rx; set TE & RE for Tx
+		 * 2. Rx sync with Tx: only set TE for Tx; set RE & TE for Rx
+		 *
+		 * RM recommends to enable RE after TE for case 1 and to enable
+		 * TE after RE for case 2, but we here may not always guarantee
+		 * that happens: "arecord 1.wav; aplay 2.wav" in case 1 enables
+		 * TE after RE, which is against what RM recommends but should
+		 * be safe to do, judging by years of testing results.
+		 */
+		if (fsl_sai_dir_is_synced(sai, adir))
+			regmap_update_bits(sai->regmap, FSL_SAI_xCSR((!tx), ofs),
+					   FSL_SAI_CSR_TERE, FSL_SAI_CSR_TERE);
+
+		regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs),
+				   FSL_SAI_CSR_xIE_MASK, FSL_SAI_FLAGS);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs),
+				   FSL_SAI_CSR_FRDE, 0);
+		regmap_update_bits(sai->regmap, FSL_SAI_xCSR(tx, ofs),
+				   FSL_SAI_CSR_xIE_MASK, 0);
+
+		/* Check if the opposite FRDE is also disabled */
+		regmap_read(sai->regmap, FSL_SAI_xCSR(!tx, ofs), &xcsr);
+
+		/*
+		 * If opposite stream provides clocks for synchronous mode and
+		 * it is inactive, disable it before disabling the current one
+		 */
+		if (fsl_sai_dir_is_synced(sai, adir) && !(xcsr & FSL_SAI_CSR_FRDE))
+			fsl_sai_config_disable(sai, adir);
+
+		/*
+		 * Disable current stream if either of:
+		 * 1. current stream doesn't provide clocks for synchronous mode
+		 * 2. current stream provides clocks for synchronous mode but no
+		 *    more stream is active.
+		 */
+		if (!fsl_sai_dir_is_synced(sai, dir) || !(xcsr & FSL_SAI_CSR_FRDE))
+			fsl_sai_config_disable(sai, dir);
+
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int fsl_sai_startup(struct snd_pcm_substream *substream,
+		struct snd_soc_dai *cpu_dai)
+{
+	struct fsl_sai *sai = snd_soc_dai_get_drvdata(cpu_dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	int ret;
+
+	/*
+	 * EDMA controller needs period size to be a multiple of
+	 * tx/rx maxburst
+	 */
+	if (sai->soc_data->use_edma)
+		snd_pcm_hw_constraint_step(substream->runtime, 0,
+					   SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
+					   tx ? sai->dma_params_tx.maxburst :
+					   sai->dma_params_rx.maxburst);
+
+	ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &fsl_sai_rate_constraints);
+
+	return ret;
+}
+
+static const struct snd_soc_dai_ops fsl_sai_pcm_dai_ops = {
+	.set_bclk_ratio	= fsl_sai_set_dai_bclk_ratio,
+	.set_sysclk	= fsl_sai_set_dai_sysclk,
+	.set_fmt	= fsl_sai_set_dai_fmt,
+	.set_tdm_slot	= fsl_sai_set_dai_tdm_slot,
+	.hw_params	= fsl_sai_hw_params,
+	.hw_free	= fsl_sai_hw_free,
+	.trigger	= fsl_sai_trigger,
+	.startup	= fsl_sai_startup,
+};
+
+static int fsl_sai_dai_probe(struct snd_soc_dai *cpu_dai)
+{
+	struct fsl_sai *sai = dev_get_drvdata(cpu_dai->dev);
+	unsigned int ofs = sai->soc_data->reg_offset;
+
+	/* Software Reset for both Tx and Rx */
+	regmap_write(sai->regmap, FSL_SAI_TCSR(ofs), FSL_SAI_CSR_SR);
+	regmap_write(sai->regmap, FSL_SAI_RCSR(ofs), FSL_SAI_CSR_SR);
+	/* Clear SR bit to finish the reset */
+	regmap_write(sai->regmap, FSL_SAI_TCSR(ofs), 0);
+	regmap_write(sai->regmap, FSL_SAI_RCSR(ofs), 0);
+
+	regmap_update_bits(sai->regmap, FSL_SAI_TCR1(ofs),
+			   FSL_SAI_CR1_RFW_MASK(sai->soc_data->fifo_depth),
+			   sai->soc_data->fifo_depth - FSL_SAI_MAXBURST_TX);
+	regmap_update_bits(sai->regmap, FSL_SAI_RCR1(ofs),
+			   FSL_SAI_CR1_RFW_MASK(sai->soc_data->fifo_depth),
+			   FSL_SAI_MAXBURST_RX - 1);
+
+	snd_soc_dai_init_dma_data(cpu_dai, &sai->dma_params_tx,
+				&sai->dma_params_rx);
+
+	return 0;
+}
+
+static int fsl_sai_dai_resume(struct snd_soc_component *component)
+{
+	struct fsl_sai *sai = snd_soc_component_get_drvdata(component);
+	struct device *dev = &sai->pdev->dev;
+	int ret;
+
+	if (!IS_ERR_OR_NULL(sai->pinctrl) && !IS_ERR_OR_NULL(sai->pins_state)) {
+		ret = pinctrl_select_state(sai->pinctrl, sai->pins_state);
+		if (ret) {
+			dev_err(dev, "failed to set proper pins state: %d\n", ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver fsl_sai_dai_template = {
+	.probe = fsl_sai_dai_probe,
+	.playback = {
+		.stream_name = "CPU-Playback",
+		.channels_min = 1,
+		.channels_max = 32,
+		.rate_min = 8000,
+		.rate_max = 2822400,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_SAI_FORMATS,
+	},
+	.capture = {
+		.stream_name = "CPU-Capture",
+		.channels_min = 1,
+		.channels_max = 32,
+		.rate_min = 8000,
+		.rate_max = 2822400,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = FSL_SAI_FORMATS,
+	},
+	.ops = &fsl_sai_pcm_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_component = {
+	.name			= "fsl-sai",
+	.resume			= fsl_sai_dai_resume,
+	.legacy_dai_naming	= 1,
+};
+
+static struct reg_default fsl_sai_reg_defaults_ofs0[] = {
+	{FSL_SAI_TCR1(0), 0},
+	{FSL_SAI_TCR2(0), 0},
+	{FSL_SAI_TCR3(0), 0},
+	{FSL_SAI_TCR4(0), 0},
+	{FSL_SAI_TCR5(0), 0},
+	{FSL_SAI_TDR0, 0},
+	{FSL_SAI_TDR1, 0},
+	{FSL_SAI_TDR2, 0},
+	{FSL_SAI_TDR3, 0},
+	{FSL_SAI_TDR4, 0},
+	{FSL_SAI_TDR5, 0},
+	{FSL_SAI_TDR6, 0},
+	{FSL_SAI_TDR7, 0},
+	{FSL_SAI_TMR, 0},
+	{FSL_SAI_RCR1(0), 0},
+	{FSL_SAI_RCR2(0), 0},
+	{FSL_SAI_RCR3(0), 0},
+	{FSL_SAI_RCR4(0), 0},
+	{FSL_SAI_RCR5(0), 0},
+	{FSL_SAI_RMR, 0},
+};
+
+static struct reg_default fsl_sai_reg_defaults_ofs8[] = {
+	{FSL_SAI_TCR1(8), 0},
+	{FSL_SAI_TCR2(8), 0},
+	{FSL_SAI_TCR3(8), 0},
+	{FSL_SAI_TCR4(8), 0},
+	{FSL_SAI_TCR5(8), 0},
+	{FSL_SAI_TDR0, 0},
+	{FSL_SAI_TDR1, 0},
+	{FSL_SAI_TDR2, 0},
+	{FSL_SAI_TDR3, 0},
+	{FSL_SAI_TDR4, 0},
+	{FSL_SAI_TDR5, 0},
+	{FSL_SAI_TDR6, 0},
+	{FSL_SAI_TDR7, 0},
+	{FSL_SAI_TMR, 0},
+	{FSL_SAI_RCR1(8), 0},
+	{FSL_SAI_RCR2(8), 0},
+	{FSL_SAI_RCR3(8), 0},
+	{FSL_SAI_RCR4(8), 0},
+	{FSL_SAI_RCR5(8), 0},
+	{FSL_SAI_RMR, 0},
+	{FSL_SAI_MCTL, 0},
+	{FSL_SAI_MDIV, 0},
+};
+
+static bool fsl_sai_readable_reg(struct device *dev, unsigned int reg)
+{
+	struct fsl_sai *sai = dev_get_drvdata(dev);
+	unsigned int ofs = sai->soc_data->reg_offset;
+
+	if (reg >= FSL_SAI_TCSR(ofs) && reg <= FSL_SAI_TCR5(ofs))
+		return true;
+
+	if (reg >= FSL_SAI_RCSR(ofs) && reg <= FSL_SAI_RCR5(ofs))
+		return true;
+
+	switch (reg) {
+	case FSL_SAI_TFR0:
+	case FSL_SAI_TFR1:
+	case FSL_SAI_TFR2:
+	case FSL_SAI_TFR3:
+	case FSL_SAI_TFR4:
+	case FSL_SAI_TFR5:
+	case FSL_SAI_TFR6:
+	case FSL_SAI_TFR7:
+	case FSL_SAI_TMR:
+	case FSL_SAI_RDR0:
+	case FSL_SAI_RDR1:
+	case FSL_SAI_RDR2:
+	case FSL_SAI_RDR3:
+	case FSL_SAI_RDR4:
+	case FSL_SAI_RDR5:
+	case FSL_SAI_RDR6:
+	case FSL_SAI_RDR7:
+	case FSL_SAI_RFR0:
+	case FSL_SAI_RFR1:
+	case FSL_SAI_RFR2:
+	case FSL_SAI_RFR3:
+	case FSL_SAI_RFR4:
+	case FSL_SAI_RFR5:
+	case FSL_SAI_RFR6:
+	case FSL_SAI_RFR7:
+	case FSL_SAI_RMR:
+	case FSL_SAI_MCTL:
+	case FSL_SAI_MDIV:
+	case FSL_SAI_VERID:
+	case FSL_SAI_PARAM:
+	case FSL_SAI_TTCTN:
+	case FSL_SAI_RTCTN:
+	case FSL_SAI_TTCTL:
+	case FSL_SAI_TBCTN:
+	case FSL_SAI_TTCAP:
+	case FSL_SAI_RTCTL:
+	case FSL_SAI_RBCTN:
+	case FSL_SAI_RTCAP:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_sai_volatile_reg(struct device *dev, unsigned int reg)
+{
+	struct fsl_sai *sai = dev_get_drvdata(dev);
+	unsigned int ofs = sai->soc_data->reg_offset;
+
+	if (reg == FSL_SAI_TCSR(ofs) || reg == FSL_SAI_RCSR(ofs))
+		return true;
+
+	/* Set VERID and PARAM be volatile for reading value in probe */
+	if (ofs == 8 && (reg == FSL_SAI_VERID || reg == FSL_SAI_PARAM))
+		return true;
+
+	switch (reg) {
+	case FSL_SAI_TFR0:
+	case FSL_SAI_TFR1:
+	case FSL_SAI_TFR2:
+	case FSL_SAI_TFR3:
+	case FSL_SAI_TFR4:
+	case FSL_SAI_TFR5:
+	case FSL_SAI_TFR6:
+	case FSL_SAI_TFR7:
+	case FSL_SAI_RFR0:
+	case FSL_SAI_RFR1:
+	case FSL_SAI_RFR2:
+	case FSL_SAI_RFR3:
+	case FSL_SAI_RFR4:
+	case FSL_SAI_RFR5:
+	case FSL_SAI_RFR6:
+	case FSL_SAI_RFR7:
+	case FSL_SAI_RDR0:
+	case FSL_SAI_RDR1:
+	case FSL_SAI_RDR2:
+	case FSL_SAI_RDR3:
+	case FSL_SAI_RDR4:
+	case FSL_SAI_RDR5:
+	case FSL_SAI_RDR6:
+	case FSL_SAI_RDR7:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_sai_writeable_reg(struct device *dev, unsigned int reg)
+{
+	struct fsl_sai *sai = dev_get_drvdata(dev);
+	unsigned int ofs = sai->soc_data->reg_offset;
+
+	if (reg >= FSL_SAI_TCSR(ofs) && reg <= FSL_SAI_TCR5(ofs))
+		return true;
+
+	if (reg >= FSL_SAI_RCSR(ofs) && reg <= FSL_SAI_RCR5(ofs))
+		return true;
+
+	switch (reg) {
+	case FSL_SAI_TDR0:
+	case FSL_SAI_TDR1:
+	case FSL_SAI_TDR2:
+	case FSL_SAI_TDR3:
+	case FSL_SAI_TDR4:
+	case FSL_SAI_TDR5:
+	case FSL_SAI_TDR6:
+	case FSL_SAI_TDR7:
+	case FSL_SAI_TMR:
+	case FSL_SAI_RMR:
+	case FSL_SAI_MCTL:
+	case FSL_SAI_MDIV:
+	case FSL_SAI_TTCTL:
+	case FSL_SAI_RTCTL:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static struct regmap_config fsl_sai_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.fast_io = true,
+
+	.max_register = FSL_SAI_RMR,
+	.reg_defaults = fsl_sai_reg_defaults_ofs0,
+	.num_reg_defaults = ARRAY_SIZE(fsl_sai_reg_defaults_ofs0),
+	.readable_reg = fsl_sai_readable_reg,
+	.volatile_reg = fsl_sai_volatile_reg,
+	.writeable_reg = fsl_sai_writeable_reg,
+	.cache_type = REGCACHE_FLAT,
+};
+
+static int fsl_sai_check_version(struct device *dev)
+{
+	struct fsl_sai *sai = dev_get_drvdata(dev);
+	unsigned char ofs = sai->soc_data->reg_offset;
+	unsigned int val;
+	int ret;
+
+	if (FSL_SAI_TCSR(ofs) == FSL_SAI_VERID)
+		return 0;
+
+	ret = regmap_read(sai->regmap, FSL_SAI_VERID, &val);
+	if (ret < 0)
+		return ret;
+
+	dev_dbg(dev, "VERID: 0x%016X\n", val);
+
+	sai->verid.version = val &
+		(FSL_SAI_VERID_MAJOR_MASK | FSL_SAI_VERID_MINOR_MASK);
+	sai->verid.version >>= FSL_SAI_VERID_MINOR_SHIFT;
+	sai->verid.feature = val & FSL_SAI_VERID_FEATURE_MASK;
+
+	ret = regmap_read(sai->regmap, FSL_SAI_PARAM, &val);
+	if (ret < 0)
+		return ret;
+
+	dev_dbg(dev, "PARAM: 0x%016X\n", val);
+
+	/* Max slots per frame, power of 2 */
+	sai->param.slot_num = 1 <<
+		((val & FSL_SAI_PARAM_SPF_MASK) >> FSL_SAI_PARAM_SPF_SHIFT);
+
+	/* Words per fifo, power of 2 */
+	sai->param.fifo_depth = 1 <<
+		((val & FSL_SAI_PARAM_WPF_MASK) >> FSL_SAI_PARAM_WPF_SHIFT);
+
+	/* Number of datalines implemented */
+	sai->param.dataline = val & FSL_SAI_PARAM_DLN_MASK;
+
+	return 0;
+}
+
+/*
+ * Calculate the offset between first two datalines, don't
+ * different offset in one case.
+ */
+static unsigned int fsl_sai_calc_dl_off(unsigned long dl_mask)
+{
+	int fbidx, nbidx, offset;
+
+	fbidx = find_first_bit(&dl_mask, FSL_SAI_DL_NUM);
+	nbidx = find_next_bit(&dl_mask, FSL_SAI_DL_NUM, fbidx + 1);
+	offset = nbidx - fbidx - 1;
+
+	return (offset < 0 || offset >= (FSL_SAI_DL_NUM - 1) ? 0 : offset);
+}
+
+/*
+ * read the fsl,dataline property from dts file.
+ * It has 3 value for each configuration, first one means the type:
+ * I2S(1) or PDM(2), second one is dataline mask for 'rx', third one is
+ * dataline mask for 'tx'. for example
+ *
+ * fsl,dataline = <1 0xff 0xff 2 0xff 0x11>,
+ *
+ * It means I2S type rx mask is 0xff, tx mask is 0xff, PDM type
+ * rx mask is 0xff, tx mask is 0x11 (dataline 1 and 4 enabled).
+ *
+ */
+static int fsl_sai_read_dlcfg(struct fsl_sai *sai)
+{
+	struct platform_device *pdev = sai->pdev;
+	struct device_node *np = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
+	int ret, elems, i, index, num_cfg;
+	char *propname = "fsl,dataline";
+	struct fsl_sai_dl_cfg *cfg;
+	unsigned long dl_mask;
+	unsigned int soc_dl;
+	u32 rx, tx, type;
+
+	elems = of_property_count_u32_elems(np, propname);
+
+	if (elems <= 0) {
+		elems = 0;
+	} else if (elems % 3) {
+		dev_err(dev, "Number of elements must be divisible to 3.\n");
+		return -EINVAL;
+	}
+
+	num_cfg = elems / 3;
+	/*  Add one more for default value */
+	cfg = devm_kzalloc(&pdev->dev, (num_cfg + 1) * sizeof(*cfg), GFP_KERNEL);
+	if (!cfg)
+		return -ENOMEM;
+
+	/* Consider default value "0 0xFF 0xFF" if property is missing */
+	soc_dl = BIT(sai->soc_data->pins) - 1;
+	cfg[0].type = FSL_SAI_DL_DEFAULT;
+	cfg[0].pins[0] = sai->soc_data->pins;
+	cfg[0].mask[0] = soc_dl;
+	cfg[0].start_off[0] = 0;
+	cfg[0].next_off[0] = 0;
+
+	cfg[0].pins[1] = sai->soc_data->pins;
+	cfg[0].mask[1] = soc_dl;
+	cfg[0].start_off[1] = 0;
+	cfg[0].next_off[1] = 0;
+	for (i = 1, index = 0; i < num_cfg + 1; i++) {
+		/*
+		 * type of dataline
+		 * 0 means default mode
+		 * 1 means I2S mode
+		 * 2 means PDM mode
+		 */
+		ret = of_property_read_u32_index(np, propname, index++, &type);
+		if (ret)
+			return -EINVAL;
+
+		ret = of_property_read_u32_index(np, propname, index++, &rx);
+		if (ret)
+			return -EINVAL;
+
+		ret = of_property_read_u32_index(np, propname, index++, &tx);
+		if (ret)
+			return -EINVAL;
+
+		if ((rx & ~soc_dl) || (tx & ~soc_dl)) {
+			dev_err(dev, "dataline cfg[%d] setting error, mask is 0x%x\n", i, soc_dl);
+			return -EINVAL;
+		}
+
+		rx = rx & soc_dl;
+		tx = tx & soc_dl;
+
+		cfg[i].type = type;
+		cfg[i].pins[0] = hweight8(rx);
+		cfg[i].mask[0] = rx;
+		dl_mask = rx;
+		cfg[i].start_off[0] = find_first_bit(&dl_mask, FSL_SAI_DL_NUM);
+		cfg[i].next_off[0] = fsl_sai_calc_dl_off(rx);
+
+		cfg[i].pins[1] = hweight8(tx);
+		cfg[i].mask[1] = tx;
+		dl_mask = tx;
+		cfg[i].start_off[1] = find_first_bit(&dl_mask, FSL_SAI_DL_NUM);
+		cfg[i].next_off[1] = fsl_sai_calc_dl_off(tx);
+	}
+
+	sai->dl_cfg = cfg;
+	sai->dl_cfg_cnt = num_cfg + 1;
+	return 0;
+}
+
+static int fsl_sai_runtime_suspend(struct device *dev);
+static int fsl_sai_runtime_resume(struct device *dev);
+
+static int fsl_sai_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
+	struct fsl_sai *sai;
+	struct regmap *gpr;
+	void __iomem *base;
+	char tmp[8];
+	int irq, ret, i;
+	int index;
+	u32 dmas[4];
+
+	sai = devm_kzalloc(dev, sizeof(*sai), GFP_KERNEL);
+	if (!sai)
+		return -ENOMEM;
+
+	sai->pdev = pdev;
+	sai->soc_data = of_device_get_match_data(dev);
+
+	sai->is_lsb_first = of_property_read_bool(np, "lsb-first");
+
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &sai->res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	if (sai->soc_data->reg_offset == 8) {
+		fsl_sai_regmap_config.reg_defaults = fsl_sai_reg_defaults_ofs8;
+		fsl_sai_regmap_config.max_register = FSL_SAI_MDIV;
+		fsl_sai_regmap_config.num_reg_defaults =
+			ARRAY_SIZE(fsl_sai_reg_defaults_ofs8);
+	}
+
+	sai->regmap = devm_regmap_init_mmio(dev, base, &fsl_sai_regmap_config);
+	if (IS_ERR(sai->regmap)) {
+		dev_err(dev, "regmap init failed\n");
+		return PTR_ERR(sai->regmap);
+	}
+
+	sai->bus_clk = devm_clk_get(dev, "bus");
+	/* Compatible with old DTB cases */
+	if (IS_ERR(sai->bus_clk) && PTR_ERR(sai->bus_clk) != -EPROBE_DEFER)
+		sai->bus_clk = devm_clk_get(dev, "sai");
+	if (IS_ERR(sai->bus_clk)) {
+		dev_err(dev, "failed to get bus clock: %ld\n",
+				PTR_ERR(sai->bus_clk));
+		/* -EPROBE_DEFER */
+		return PTR_ERR(sai->bus_clk);
+	}
+
+	for (i = 1; i < FSL_SAI_MCLK_MAX; i++) {
+		sprintf(tmp, "mclk%d", i);
+		sai->mclk_clk[i] = devm_clk_get(dev, tmp);
+		if (IS_ERR(sai->mclk_clk[i])) {
+			dev_err(dev, "failed to get mclk%d clock: %ld\n",
+					i, PTR_ERR(sai->mclk_clk[i]));
+			sai->mclk_clk[i] = NULL;
+		}
+	}
+
+	if (sai->soc_data->mclk0_is_mclk1)
+		sai->mclk_clk[0] = sai->mclk_clk[1];
+	else
+		sai->mclk_clk[0] = sai->bus_clk;
+
+	fsl_asoc_get_pll_clocks(&pdev->dev, &sai->pll8k_clk,
+				&sai->pll11k_clk);
+
+	/* Use Multi FIFO mode depending on the support from SDMA script */
+	ret = of_property_read_u32_array(np, "dmas", dmas, 4);
+	if (!sai->soc_data->use_edma && !ret && dmas[2] == IMX_DMATYPE_MULTI_SAI)
+		sai->is_multi_fifo_dma = true;
+
+	/* read dataline mask for rx and tx*/
+	ret = fsl_sai_read_dlcfg(sai);
+	if (ret < 0) {
+		dev_err(dev, "failed to read dlcfg %d\n", ret);
+		return ret;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = devm_request_irq(dev, irq, fsl_sai_isr, IRQF_SHARED,
+			       np->name, sai);
+	if (ret) {
+		dev_err(dev, "failed to claim irq %u\n", irq);
+		return ret;
+	}
+
+	memcpy(&sai->cpu_dai_drv, &fsl_sai_dai_template,
+	       sizeof(fsl_sai_dai_template));
+
+	/* Sync Tx with Rx as default by following old DT binding */
+	sai->synchronous[RX] = true;
+	sai->synchronous[TX] = false;
+	sai->cpu_dai_drv.symmetric_rate = 1;
+	sai->cpu_dai_drv.symmetric_channels = 1;
+	sai->cpu_dai_drv.symmetric_sample_bits = 1;
+
+	if (of_property_read_bool(np, "fsl,sai-synchronous-rx") &&
+	    of_property_read_bool(np, "fsl,sai-asynchronous")) {
+		/* error out if both synchronous and asynchronous are present */
+		dev_err(dev, "invalid binding for synchronous mode\n");
+		return -EINVAL;
+	}
+
+	if (of_property_read_bool(np, "fsl,sai-synchronous-rx")) {
+		/* Sync Rx with Tx */
+		sai->synchronous[RX] = false;
+		sai->synchronous[TX] = true;
+	} else if (of_property_read_bool(np, "fsl,sai-asynchronous")) {
+		/* Discard all settings for asynchronous mode */
+		sai->synchronous[RX] = false;
+		sai->synchronous[TX] = false;
+		sai->cpu_dai_drv.symmetric_rate = 0;
+		sai->cpu_dai_drv.symmetric_channels = 0;
+		sai->cpu_dai_drv.symmetric_sample_bits = 0;
+	}
+
+	sai->mclk_direction_output = of_property_read_bool(np, "fsl,sai-mclk-direction-output");
+
+	if (sai->mclk_direction_output &&
+	    of_device_is_compatible(np, "fsl,imx6ul-sai")) {
+		gpr = syscon_regmap_lookup_by_compatible("fsl,imx6ul-iomuxc-gpr");
+		if (IS_ERR(gpr)) {
+			dev_err(dev, "cannot find iomuxc registers\n");
+			return PTR_ERR(gpr);
+		}
+
+		index = of_alias_get_id(np, "sai");
+		if (index < 0)
+			return index;
+
+		regmap_update_bits(gpr, IOMUXC_GPR1, MCLK_DIR(index),
+				   MCLK_DIR(index));
+	}
+
+	sai->dma_params_rx.addr = sai->res->start + FSL_SAI_RDR0;
+	sai->dma_params_tx.addr = sai->res->start + FSL_SAI_TDR0;
+	sai->dma_params_rx.maxburst = FSL_SAI_MAXBURST_RX;
+	sai->dma_params_tx.maxburst = FSL_SAI_MAXBURST_TX;
+
+	sai->pinctrl = devm_pinctrl_get(&pdev->dev);
+
+	platform_set_drvdata(pdev, sai);
+	pm_runtime_enable(dev);
+	if (!pm_runtime_enabled(dev)) {
+		ret = fsl_sai_runtime_resume(dev);
+		if (ret)
+			goto err_pm_disable;
+	}
+
+	ret = pm_runtime_resume_and_get(dev);
+	if (ret < 0)
+		goto err_pm_get_sync;
+
+	/* Get sai version */
+	ret = fsl_sai_check_version(dev);
+	if (ret < 0)
+		dev_warn(dev, "Error reading SAI version: %d\n", ret);
+
+	/* Select MCLK direction */
+	if (sai->mclk_direction_output &&
+	    sai->soc_data->max_register >= FSL_SAI_MCTL) {
+		regmap_update_bits(sai->regmap, FSL_SAI_MCTL,
+				   FSL_SAI_MCTL_MCLK_EN, FSL_SAI_MCTL_MCLK_EN);
+	}
+
+	ret = pm_runtime_put_sync(dev);
+	if (ret < 0 && ret != -ENOSYS)
+		goto err_pm_get_sync;
+
+	/*
+	 * Register platform component before registering cpu dai for there
+	 * is not defer probe for platform component in snd_soc_add_pcm_runtime().
+	 */
+	if (sai->soc_data->use_imx_pcm) {
+		ret = imx_pcm_dma_init(pdev);
+		if (ret) {
+			if (!IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA))
+				dev_err(dev, "Error: You must enable the imx-pcm-dma support!\n");
+			goto err_pm_get_sync;
+		}
+	} else {
+		ret = devm_snd_dmaengine_pcm_register(dev, NULL, 0);
+		if (ret)
+			goto err_pm_get_sync;
+	}
+
+	ret = devm_snd_soc_register_component(dev, &fsl_component,
+					      &sai->cpu_dai_drv, 1);
+	if (ret)
+		goto err_pm_get_sync;
+
+	return ret;
+
+err_pm_get_sync:
+	if (!pm_runtime_status_suspended(dev))
+		fsl_sai_runtime_suspend(dev);
+err_pm_disable:
+	pm_runtime_disable(dev);
+
+	return ret;
+}
+
+static int fsl_sai_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		fsl_sai_runtime_suspend(&pdev->dev);
+
+	return 0;
+}
+
+static const struct fsl_sai_soc_data fsl_sai_vf610_data = {
+	.use_imx_pcm = false,
+	.use_edma = false,
+	.fifo_depth = 32,
+	.pins = 1,
+	.reg_offset = 0,
+	.mclk0_is_mclk1 = false,
+	.flags = 0,
+	.max_register = FSL_SAI_RMR,
+};
+
+static const struct fsl_sai_soc_data fsl_sai_imx6sx_data = {
+	.use_imx_pcm = true,
+	.use_edma = false,
+	.fifo_depth = 32,
+	.pins = 1,
+	.reg_offset = 0,
+	.mclk0_is_mclk1 = true,
+	.flags = 0,
+	.max_register = FSL_SAI_RMR,
+};
+
+static const struct fsl_sai_soc_data fsl_sai_imx7ulp_data = {
+	.use_imx_pcm = true,
+	.use_edma = false,
+	.fifo_depth = 16,
+	.pins = 2,
+	.reg_offset = 8,
+	.mclk0_is_mclk1 = false,
+	.flags = PMQOS_CPU_LATENCY,
+	.max_register = FSL_SAI_RMR,
+};
+
+static const struct fsl_sai_soc_data fsl_sai_imx8mq_data = {
+	.use_imx_pcm = true,
+	.use_edma = false,
+	.fifo_depth = 128,
+	.pins = 8,
+	.reg_offset = 8,
+	.mclk0_is_mclk1 = false,
+	.flags = 0,
+	.max_register = FSL_SAI_RMR,
+};
+
+static const struct fsl_sai_soc_data fsl_sai_imx8qm_data = {
+	.use_imx_pcm = true,
+	.use_edma = true,
+	.fifo_depth = 64,
+	.pins = 4,
+	.reg_offset = 0,
+	.mclk0_is_mclk1 = false,
+	.flags = 0,
+	.max_register = FSL_SAI_RMR,
+};
+
+static const struct fsl_sai_soc_data fsl_sai_imx8mm_data = {
+	.use_imx_pcm = true,
+	.use_edma = false,
+	.fifo_depth = 128,
+	.reg_offset = 8,
+	.mclk0_is_mclk1 = false,
+	.pins = 8,
+	.flags = 0,
+	.max_register = FSL_SAI_MCTL,
+};
+
+static const struct fsl_sai_soc_data fsl_sai_imx8mn_data = {
+	.use_imx_pcm = true,
+	.use_edma = false,
+	.fifo_depth = 128,
+	.reg_offset = 8,
+	.mclk0_is_mclk1 = false,
+	.pins = 8,
+	.flags = 0,
+	.max_register = FSL_SAI_MDIV,
+};
+
+static const struct fsl_sai_soc_data fsl_sai_imx8mp_data = {
+	.use_imx_pcm = true,
+	.use_edma = false,
+	.fifo_depth = 128,
+	.reg_offset = 8,
+	.mclk0_is_mclk1 = false,
+	.pins = 8,
+	.flags = 0,
+	.max_register = FSL_SAI_MDIV,
+	.mclk_with_tere = true,
+};
+
+static const struct fsl_sai_soc_data fsl_sai_imx8ulp_data = {
+	.use_imx_pcm = true,
+	.use_edma = true,
+	.fifo_depth = 16,
+	.reg_offset = 8,
+	.mclk0_is_mclk1 = false,
+	.pins = 4,
+	.flags = PMQOS_CPU_LATENCY,
+	.max_register = FSL_SAI_RTCAP,
+};
+
+static const struct of_device_id fsl_sai_ids[] = {
+	{ .compatible = "fsl,vf610-sai", .data = &fsl_sai_vf610_data },
+	{ .compatible = "fsl,imx6sx-sai", .data = &fsl_sai_imx6sx_data },
+	{ .compatible = "fsl,imx6ul-sai", .data = &fsl_sai_imx6sx_data },
+	{ .compatible = "fsl,imx7ulp-sai", .data = &fsl_sai_imx7ulp_data },
+	{ .compatible = "fsl,imx8mq-sai", .data = &fsl_sai_imx8mq_data },
+	{ .compatible = "fsl,imx8qm-sai", .data = &fsl_sai_imx8qm_data },
+	{ .compatible = "fsl,imx8mm-sai", .data = &fsl_sai_imx8mm_data },
+	{ .compatible = "fsl,imx8mp-sai", .data = &fsl_sai_imx8mp_data },
+	{ .compatible = "fsl,imx8ulp-sai", .data = &fsl_sai_imx8ulp_data },
+	{ .compatible = "fsl,imx8mn-sai", .data = &fsl_sai_imx8mn_data },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, fsl_sai_ids);
+
+static int fsl_sai_runtime_suspend(struct device *dev)
+{
+	struct fsl_sai *sai = dev_get_drvdata(dev);
+
+	if (sai->mclk_streams & BIT(SNDRV_PCM_STREAM_CAPTURE))
+		clk_disable_unprepare(sai->mclk_clk[sai->mclk_id[0]]);
+
+	if (sai->mclk_streams & BIT(SNDRV_PCM_STREAM_PLAYBACK))
+		clk_disable_unprepare(sai->mclk_clk[sai->mclk_id[1]]);
+
+	clk_disable_unprepare(sai->bus_clk);
+
+	if (sai->soc_data->flags & PMQOS_CPU_LATENCY)
+		cpu_latency_qos_remove_request(&sai->pm_qos_req);
+
+	regcache_cache_only(sai->regmap, true);
+
+	return 0;
+}
+
+static int fsl_sai_runtime_resume(struct device *dev)
+{
+	struct fsl_sai *sai = dev_get_drvdata(dev);
+	unsigned int ofs = sai->soc_data->reg_offset;
+	int ret;
+
+	ret = clk_prepare_enable(sai->bus_clk);
+	if (ret) {
+		dev_err(dev, "failed to enable bus clock: %d\n", ret);
+		return ret;
+	}
+
+	if (sai->mclk_streams & BIT(SNDRV_PCM_STREAM_PLAYBACK)) {
+		ret = clk_prepare_enable(sai->mclk_clk[sai->mclk_id[1]]);
+		if (ret)
+			goto disable_bus_clk;
+	}
+
+	if (sai->mclk_streams & BIT(SNDRV_PCM_STREAM_CAPTURE)) {
+		ret = clk_prepare_enable(sai->mclk_clk[sai->mclk_id[0]]);
+		if (ret)
+			goto disable_tx_clk;
+	}
+
+	if (sai->soc_data->flags & PMQOS_CPU_LATENCY)
+		cpu_latency_qos_add_request(&sai->pm_qos_req, 0);
+
+	regcache_cache_only(sai->regmap, false);
+	regcache_mark_dirty(sai->regmap);
+	regmap_write(sai->regmap, FSL_SAI_TCSR(ofs), FSL_SAI_CSR_SR);
+	regmap_write(sai->regmap, FSL_SAI_RCSR(ofs), FSL_SAI_CSR_SR);
+	usleep_range(1000, 2000);
+	regmap_write(sai->regmap, FSL_SAI_TCSR(ofs), 0);
+	regmap_write(sai->regmap, FSL_SAI_RCSR(ofs), 0);
+
+	ret = regcache_sync(sai->regmap);
+	if (ret)
+		goto disable_rx_clk;
+
+	if (sai->soc_data->mclk_with_tere && sai->mclk_direction_output)
+		regmap_update_bits(sai->regmap, FSL_SAI_TCSR(ofs),
+				   FSL_SAI_CSR_TERE, FSL_SAI_CSR_TERE);
+
+	return 0;
+
+disable_rx_clk:
+	if (sai->mclk_streams & BIT(SNDRV_PCM_STREAM_CAPTURE))
+		clk_disable_unprepare(sai->mclk_clk[sai->mclk_id[0]]);
+disable_tx_clk:
+	if (sai->mclk_streams & BIT(SNDRV_PCM_STREAM_PLAYBACK))
+		clk_disable_unprepare(sai->mclk_clk[sai->mclk_id[1]]);
+disable_bus_clk:
+	clk_disable_unprepare(sai->bus_clk);
+
+	return ret;
+}
+
+static const struct dev_pm_ops fsl_sai_pm_ops = {
+	SET_RUNTIME_PM_OPS(fsl_sai_runtime_suspend,
+			   fsl_sai_runtime_resume, NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static struct platform_driver fsl_sai_driver = {
+	.probe = fsl_sai_probe,
+	.remove = fsl_sai_remove,
+	.driver = {
+		.name = "fsl-sai",
+		.pm = &fsl_sai_pm_ops,
+		.of_match_table = fsl_sai_ids,
+	},
+};
+module_platform_driver(fsl_sai_driver);
+
+MODULE_DESCRIPTION("Freescale Soc SAI Interface");
+MODULE_AUTHOR("Xiubo Li, <Li.Xiubo@freescale.com>");
+MODULE_ALIAS("platform:fsl-sai");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h
new file mode 100644
index 000000000..b4d616a44
--- /dev/null
+++ b/sound/soc/fsl/fsl_sai.h
@@ -0,0 +1,315 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2012-2013 Freescale Semiconductor, Inc.
+ */
+
+#ifndef __FSL_SAI_H
+#define __FSL_SAI_H
+
+#include <linux/dma/imx-dma.h>
+#include <sound/dmaengine_pcm.h>
+
+#define FSL_SAI_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
+			 SNDRV_PCM_FMTBIT_S20_3LE |\
+			 SNDRV_PCM_FMTBIT_S24_LE |\
+			 SNDRV_PCM_FMTBIT_S32_LE |\
+			 SNDRV_PCM_FMTBIT_DSD_U8 |\
+			 SNDRV_PCM_FMTBIT_DSD_U16_LE |\
+			 SNDRV_PCM_FMTBIT_DSD_U32_LE)
+
+/* SAI Register Map Register */
+#define FSL_SAI_VERID	0x00 /* SAI Version ID Register */
+#define FSL_SAI_PARAM	0x04 /* SAI Parameter Register */
+#define FSL_SAI_TCSR(ofs)	(0x00 + ofs) /* SAI Transmit Control */
+#define FSL_SAI_TCR1(ofs)	(0x04 + ofs) /* SAI Transmit Configuration 1 */
+#define FSL_SAI_TCR2(ofs)	(0x08 + ofs) /* SAI Transmit Configuration 2 */
+#define FSL_SAI_TCR3(ofs)	(0x0c + ofs) /* SAI Transmit Configuration 3 */
+#define FSL_SAI_TCR4(ofs)	(0x10 + ofs) /* SAI Transmit Configuration 4 */
+#define FSL_SAI_TCR5(ofs)	(0x14 + ofs) /* SAI Transmit Configuration 5 */
+#define FSL_SAI_TDR0	0x20 /* SAI Transmit Data 0 */
+#define FSL_SAI_TDR1	0x24 /* SAI Transmit Data 1 */
+#define FSL_SAI_TDR2	0x28 /* SAI Transmit Data 2 */
+#define FSL_SAI_TDR3	0x2C /* SAI Transmit Data 3 */
+#define FSL_SAI_TDR4	0x30 /* SAI Transmit Data 4 */
+#define FSL_SAI_TDR5	0x34 /* SAI Transmit Data 5 */
+#define FSL_SAI_TDR6	0x38 /* SAI Transmit Data 6 */
+#define FSL_SAI_TDR7	0x3C /* SAI Transmit Data 7 */
+#define FSL_SAI_TFR0	0x40 /* SAI Transmit FIFO 0 */
+#define FSL_SAI_TFR1	0x44 /* SAI Transmit FIFO 1 */
+#define FSL_SAI_TFR2	0x48 /* SAI Transmit FIFO 2 */
+#define FSL_SAI_TFR3	0x4C /* SAI Transmit FIFO 3 */
+#define FSL_SAI_TFR4	0x50 /* SAI Transmit FIFO 4 */
+#define FSL_SAI_TFR5	0x54 /* SAI Transmit FIFO 5 */
+#define FSL_SAI_TFR6	0x58 /* SAI Transmit FIFO 6 */
+#define FSL_SAI_TFR7	0x5C /* SAI Transmit FIFO 7 */
+#define FSL_SAI_TMR	0x60 /* SAI Transmit Mask */
+#define FSL_SAI_TTCTL	0x70 /* SAI Transmit Timestamp Control Register */
+#define FSL_SAI_TTCTN	0x74 /* SAI Transmit Timestamp Counter Register */
+#define FSL_SAI_TBCTN	0x78 /* SAI Transmit Bit Counter Register */
+#define FSL_SAI_TTCAP	0x7C /* SAI Transmit Timestamp Capture */
+#define FSL_SAI_RCSR(ofs)	(0x80 + ofs) /* SAI Receive Control */
+#define FSL_SAI_RCR1(ofs)	(0x84 + ofs)/* SAI Receive Configuration 1 */
+#define FSL_SAI_RCR2(ofs)	(0x88 + ofs) /* SAI Receive Configuration 2 */
+#define FSL_SAI_RCR3(ofs)	(0x8c + ofs) /* SAI Receive Configuration 3 */
+#define FSL_SAI_RCR4(ofs)	(0x90 + ofs) /* SAI Receive Configuration 4 */
+#define FSL_SAI_RCR5(ofs)	(0x94 + ofs) /* SAI Receive Configuration 5 */
+#define FSL_SAI_RDR0	0xa0 /* SAI Receive Data 0 */
+#define FSL_SAI_RDR1	0xa4 /* SAI Receive Data 1 */
+#define FSL_SAI_RDR2	0xa8 /* SAI Receive Data 2 */
+#define FSL_SAI_RDR3	0xac /* SAI Receive Data 3 */
+#define FSL_SAI_RDR4	0xb0 /* SAI Receive Data 4 */
+#define FSL_SAI_RDR5	0xb4 /* SAI Receive Data 5 */
+#define FSL_SAI_RDR6	0xb8 /* SAI Receive Data 6 */
+#define FSL_SAI_RDR7	0xbc /* SAI Receive Data 7 */
+#define FSL_SAI_RFR0	0xc0 /* SAI Receive FIFO 0 */
+#define FSL_SAI_RFR1	0xc4 /* SAI Receive FIFO 1 */
+#define FSL_SAI_RFR2	0xc8 /* SAI Receive FIFO 2 */
+#define FSL_SAI_RFR3	0xcc /* SAI Receive FIFO 3 */
+#define FSL_SAI_RFR4	0xd0 /* SAI Receive FIFO 4 */
+#define FSL_SAI_RFR5	0xd4 /* SAI Receive FIFO 5 */
+#define FSL_SAI_RFR6	0xd8 /* SAI Receive FIFO 6 */
+#define FSL_SAI_RFR7	0xdc /* SAI Receive FIFO 7 */
+#define FSL_SAI_RMR	0xe0 /* SAI Receive Mask */
+#define FSL_SAI_RTCTL	0xf0 /* SAI Receive Timestamp Control Register */
+#define FSL_SAI_RTCTN	0xf4 /* SAI Receive Timestamp Counter Register */
+#define FSL_SAI_RBCTN	0xf8 /* SAI Receive Bit Counter Register */
+#define FSL_SAI_RTCAP	0xfc /* SAI Receive Timestamp Capture */
+
+#define FSL_SAI_MCTL	0x100 /* SAI MCLK Control Register */
+#define FSL_SAI_MDIV	0x104 /* SAI MCLK Divide Register */
+
+#define FSL_SAI_xCSR(tx, ofs)	(tx ? FSL_SAI_TCSR(ofs) : FSL_SAI_RCSR(ofs))
+#define FSL_SAI_xCR1(tx, ofs)	(tx ? FSL_SAI_TCR1(ofs) : FSL_SAI_RCR1(ofs))
+#define FSL_SAI_xCR2(tx, ofs)	(tx ? FSL_SAI_TCR2(ofs) : FSL_SAI_RCR2(ofs))
+#define FSL_SAI_xCR3(tx, ofs)	(tx ? FSL_SAI_TCR3(ofs) : FSL_SAI_RCR3(ofs))
+#define FSL_SAI_xCR4(tx, ofs)	(tx ? FSL_SAI_TCR4(ofs) : FSL_SAI_RCR4(ofs))
+#define FSL_SAI_xCR5(tx, ofs)	(tx ? FSL_SAI_TCR5(ofs) : FSL_SAI_RCR5(ofs))
+#define FSL_SAI_xDR0(tx)	(tx ? FSL_SAI_TDR0 : FSL_SAI_RDR0)
+#define FSL_SAI_xFR0(tx)	(tx ? FSL_SAI_TFR0 : FSL_SAI_RFR0)
+#define FSL_SAI_xMR(tx)		(tx ? FSL_SAI_TMR : FSL_SAI_RMR)
+
+/* SAI Transmit/Receive Control Register */
+#define FSL_SAI_CSR_TERE	BIT(31)
+#define FSL_SAI_CSR_SE		BIT(30)
+#define FSL_SAI_CSR_BCE		BIT(28)
+#define FSL_SAI_CSR_FR		BIT(25)
+#define FSL_SAI_CSR_SR		BIT(24)
+#define FSL_SAI_CSR_xF_SHIFT	16
+#define FSL_SAI_CSR_xF_W_SHIFT	18
+#define FSL_SAI_CSR_xF_MASK	(0x1f << FSL_SAI_CSR_xF_SHIFT)
+#define FSL_SAI_CSR_xF_W_MASK	(0x7 << FSL_SAI_CSR_xF_W_SHIFT)
+#define FSL_SAI_CSR_WSF		BIT(20)
+#define FSL_SAI_CSR_SEF		BIT(19)
+#define FSL_SAI_CSR_FEF		BIT(18)
+#define FSL_SAI_CSR_FWF		BIT(17)
+#define FSL_SAI_CSR_FRF		BIT(16)
+#define FSL_SAI_CSR_xIE_SHIFT	8
+#define FSL_SAI_CSR_xIE_MASK	(0x1f << FSL_SAI_CSR_xIE_SHIFT)
+#define FSL_SAI_CSR_WSIE	BIT(12)
+#define FSL_SAI_CSR_SEIE	BIT(11)
+#define FSL_SAI_CSR_FEIE	BIT(10)
+#define FSL_SAI_CSR_FWIE	BIT(9)
+#define FSL_SAI_CSR_FRIE	BIT(8)
+#define FSL_SAI_CSR_FRDE	BIT(0)
+
+/* SAI Transmit and Receive Configuration 1 Register */
+#define FSL_SAI_CR1_RFW_MASK(x)	((x) - 1)
+
+/* SAI Transmit and Receive Configuration 2 Register */
+#define FSL_SAI_CR2_SYNC	BIT(30)
+#define FSL_SAI_CR2_BCI		BIT(28)
+#define FSL_SAI_CR2_MSEL_MASK	(0x3 << 26)
+#define FSL_SAI_CR2_MSEL_BUS	0
+#define FSL_SAI_CR2_MSEL_MCLK1	BIT(26)
+#define FSL_SAI_CR2_MSEL_MCLK2	BIT(27)
+#define FSL_SAI_CR2_MSEL_MCLK3	(BIT(26) | BIT(27))
+#define FSL_SAI_CR2_MSEL(ID)	((ID) << 26)
+#define FSL_SAI_CR2_BCP		BIT(25)
+#define FSL_SAI_CR2_BCD_MSTR	BIT(24)
+#define FSL_SAI_CR2_BYP		BIT(23) /* BCLK bypass */
+#define FSL_SAI_CR2_DIV_MASK	0xff
+
+/* SAI Transmit and Receive Configuration 3 Register */
+#define FSL_SAI_CR3_TRCE(x)     ((x) << 16)
+#define FSL_SAI_CR3_TRCE_MASK	GENMASK(23, 16)
+#define FSL_SAI_CR3_WDFL(x)	(x)
+#define FSL_SAI_CR3_WDFL_MASK	0x1f
+
+/* SAI Transmit and Receive Configuration 4 Register */
+
+#define FSL_SAI_CR4_FCONT	BIT(28)
+#define FSL_SAI_CR4_FCOMB_SHIFT BIT(26)
+#define FSL_SAI_CR4_FCOMB_SOFT  BIT(27)
+#define FSL_SAI_CR4_FCOMB_MASK  (0x3 << 26)
+#define FSL_SAI_CR4_FPACK_8     (0x2 << 24)
+#define FSL_SAI_CR4_FPACK_16    (0x3 << 24)
+#define FSL_SAI_CR4_FRSZ(x)	(((x) - 1) << 16)
+#define FSL_SAI_CR4_FRSZ_MASK	(0x1f << 16)
+#define FSL_SAI_CR4_SYWD(x)	(((x) - 1) << 8)
+#define FSL_SAI_CR4_SYWD_MASK	(0x1f << 8)
+#define FSL_SAI_CR4_CHMOD       BIT(5)
+#define FSL_SAI_CR4_CHMOD_MASK  BIT(5)
+#define FSL_SAI_CR4_MF		BIT(4)
+#define FSL_SAI_CR4_FSE		BIT(3)
+#define FSL_SAI_CR4_FSP		BIT(1)
+#define FSL_SAI_CR4_FSD_MSTR	BIT(0)
+
+/* SAI Transmit and Receive Configuration 5 Register */
+#define FSL_SAI_CR5_WNW(x)	(((x) - 1) << 24)
+#define FSL_SAI_CR5_WNW_MASK	(0x1f << 24)
+#define FSL_SAI_CR5_W0W(x)	(((x) - 1) << 16)
+#define FSL_SAI_CR5_W0W_MASK	(0x1f << 16)
+#define FSL_SAI_CR5_FBT(x)	((x) << 8)
+#define FSL_SAI_CR5_FBT_MASK	(0x1f << 8)
+
+/* SAI MCLK Control Register */
+#define FSL_SAI_MCTL_MCLK_EN	BIT(30)	/* MCLK Enable */
+#define FSL_SAI_MCTL_MSEL_MASK	(0x3 << 24)
+#define FSL_SAI_MCTL_MSEL(ID)   ((ID) << 24)
+#define FSL_SAI_MCTL_MSEL_BUS	0
+#define FSL_SAI_MCTL_MSEL_MCLK1	BIT(24)
+#define FSL_SAI_MCTL_MSEL_MCLK2	BIT(25)
+#define FSL_SAI_MCTL_MSEL_MCLK3	(BIT(24) | BIT(25))
+#define FSL_SAI_MCTL_DIV_EN	BIT(23)
+#define FSL_SAI_MCTL_DIV_MASK	0xFF
+
+/* SAI VERID Register */
+#define FSL_SAI_VERID_MAJOR_SHIFT   24
+#define FSL_SAI_VERID_MAJOR_MASK    GENMASK(31, 24)
+#define FSL_SAI_VERID_MINOR_SHIFT   16
+#define FSL_SAI_VERID_MINOR_MASK    GENMASK(23, 16)
+#define FSL_SAI_VERID_FEATURE_SHIFT 0
+#define FSL_SAI_VERID_FEATURE_MASK  GENMASK(15, 0)
+#define FSL_SAI_VERID_EFIFO_EN	    BIT(0)
+#define FSL_SAI_VERID_TSTMP_EN	    BIT(1)
+
+/* SAI PARAM Register */
+#define FSL_SAI_PARAM_SPF_SHIFT	    16
+#define FSL_SAI_PARAM_SPF_MASK	    GENMASK(19, 16)
+#define FSL_SAI_PARAM_WPF_SHIFT	    8
+#define FSL_SAI_PARAM_WPF_MASK	    GENMASK(11, 8)
+#define FSL_SAI_PARAM_DLN_MASK	    GENMASK(3, 0)
+
+/* SAI MCLK Divide Register */
+#define FSL_SAI_MDIV_MASK	    0xFFFFF
+
+/* SAI timestamp and bitcounter */
+#define FSL_SAI_xTCTL_TSEN         BIT(0)
+#define FSL_SAI_xTCTL_TSINC        BIT(1)
+#define FSL_SAI_xTCTL_RTSC         BIT(8)
+#define FSL_SAI_xTCTL_RBC          BIT(9)
+
+/* SAI type */
+#define FSL_SAI_DMA		BIT(0)
+#define FSL_SAI_USE_AC97	BIT(1)
+#define FSL_SAI_NET		BIT(2)
+#define FSL_SAI_TRA_SYN		BIT(3)
+#define FSL_SAI_REC_SYN		BIT(4)
+#define FSL_SAI_USE_I2S_SLAVE	BIT(5)
+
+/* SAI clock sources */
+#define FSL_SAI_CLK_BUS		0
+#define FSL_SAI_CLK_MAST1	1
+#define FSL_SAI_CLK_MAST2	2
+#define FSL_SAI_CLK_MAST3	3
+
+#define FSL_SAI_MCLK_MAX	4
+
+/* SAI data transfer numbers per DMA request */
+#define FSL_SAI_MAXBURST_TX 6
+#define FSL_SAI_MAXBURST_RX 6
+
+#define PMQOS_CPU_LATENCY   BIT(0)
+
+/* Max number of dataline */
+#define FSL_SAI_DL_NUM		(8)
+/* default dataline type is zero */
+#define FSL_SAI_DL_DEFAULT	(0)
+#define FSL_SAI_DL_I2S		BIT(0)
+#define FSL_SAI_DL_PDM		BIT(1)
+
+struct fsl_sai_soc_data {
+	bool use_imx_pcm;
+	bool use_edma;
+	bool mclk0_is_mclk1;
+	bool mclk_with_tere;
+	unsigned int fifo_depth;
+	unsigned int pins;
+	unsigned int reg_offset;
+	unsigned int flags;
+	unsigned int max_register;
+};
+
+/**
+ * struct fsl_sai_verid - version id data
+ * @version: version number
+ * @feature: feature specification number
+ *           0000000000000000b - Standard feature set
+ *           0000000000000000b - Standard feature set
+ */
+struct fsl_sai_verid {
+	u32 version;
+	u32 feature;
+};
+
+/**
+ * struct fsl_sai_param - parameter data
+ * @slot_num: The maximum number of slots per frame
+ * @fifo_depth: The number of words in each FIFO (depth)
+ * @dataline: The number of datalines implemented
+ */
+struct fsl_sai_param {
+	u32 slot_num;
+	u32 fifo_depth;
+	u32 dataline;
+};
+
+struct fsl_sai_dl_cfg {
+	unsigned int type;
+	unsigned int pins[2];
+	unsigned int mask[2];
+	unsigned int start_off[2];
+	unsigned int next_off[2];
+};
+
+struct fsl_sai {
+	struct platform_device *pdev;
+	struct regmap *regmap;
+	struct clk *bus_clk;
+	struct clk *mclk_clk[FSL_SAI_MCLK_MAX];
+	struct clk *pll8k_clk;
+	struct clk *pll11k_clk;
+	struct resource *res;
+
+	bool is_consumer_mode;
+	bool is_lsb_first;
+	bool is_dsp_mode;
+	bool is_pdm_mode;
+	bool is_multi_fifo_dma;
+	bool synchronous[2];
+	struct fsl_sai_dl_cfg *dl_cfg;
+	unsigned int dl_cfg_cnt;
+	bool mclk_direction_output;
+
+	unsigned int mclk_id[2];
+	unsigned int mclk_streams;
+	unsigned int slots;
+	unsigned int slot_width;
+	unsigned int bclk_ratio;
+
+	const struct fsl_sai_soc_data *soc_data;
+	struct snd_soc_dai_driver cpu_dai_drv;
+	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	struct snd_dmaengine_dai_dma_data dma_params_tx;
+	struct fsl_sai_verid verid;
+	struct fsl_sai_param param;
+	struct pm_qos_request pm_qos_req;
+	struct pinctrl *pinctrl;
+	struct pinctrl_state *pins_state;
+	struct sdma_peripheral_config audio_config[2];
+};
+
+#define TX 1
+#define RX 0
+
+#endif /* __FSL_SAI_H */
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
new file mode 100644
index 000000000..fb6806b2d
--- /dev/null
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -0,0 +1,1778 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale S/PDIF ALSA SoC Digital Audio Interface (DAI) driver
+//
+// Copyright (C) 2013 Freescale Semiconductor, Inc.
+//
+// Based on stmp3xxx_spdif_dai.c
+// Vladimir Barinov <vbarinov@embeddedalley.com>
+// Copyright 2008 SigmaTel, Inc
+// Copyright 2008 Embedded Alley Solutions, Inc
+
+#include <linux/bitrev.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/regmap.h>
+#include <linux/pm_runtime.h>
+
+#include <sound/asoundef.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/soc.h>
+
+#include "fsl_spdif.h"
+#include "fsl_utils.h"
+#include "imx-pcm.h"
+
+#define FSL_SPDIF_TXFIFO_WML	0x8
+#define FSL_SPDIF_RXFIFO_WML	0x8
+
+#define INTR_FOR_PLAYBACK	(INT_TXFIFO_RESYNC)
+#define INTR_FOR_CAPTURE	(INT_SYM_ERR | INT_BIT_ERR | INT_URX_FUL |\
+				INT_URX_OV | INT_QRX_FUL | INT_QRX_OV |\
+				INT_UQ_SYNC | INT_UQ_ERR | INT_RXFIFO_RESYNC |\
+				INT_LOSS_LOCK | INT_DPLL_LOCKED)
+
+#define SIE_INTR_FOR(tx)	(tx ? INTR_FOR_PLAYBACK : INTR_FOR_CAPTURE)
+
+/* Index list for the values that has if (DPLL Locked) condition */
+static u8 srpc_dpll_locked[] = { 0x0, 0x1, 0x2, 0x3, 0x4, 0xa, 0xb };
+#define SRPC_NODPLL_START1	0x5
+#define SRPC_NODPLL_START2	0xc
+
+#define DEFAULT_RXCLK_SRC	1
+
+#define RX_SAMPLE_RATE_KCONTROL "RX Sample Rate"
+
+/**
+ * struct fsl_spdif_soc_data: soc specific data
+ *
+ * @imx: for imx platform
+ * @shared_root_clock: flag of sharing a clock source with others;
+ *                     so the driver shouldn't set root clock rate
+ * @raw_capture_mode: if raw capture mode support
+ * @cchannel_192b: if there are registers for 192bits C channel data
+ * @interrupts: interrupt number
+ * @tx_burst: tx maxburst size
+ * @rx_burst: rx maxburst size
+ * @tx_formats: tx supported data format
+ */
+struct fsl_spdif_soc_data {
+	bool imx;
+	bool shared_root_clock;
+	bool raw_capture_mode;
+	bool cchannel_192b;
+	u32 interrupts;
+	u32 tx_burst;
+	u32 rx_burst;
+	u64 tx_formats;
+};
+
+/*
+ * SPDIF control structure
+ * Defines channel status, subcode and Q sub
+ */
+struct spdif_mixer_control {
+	/* spinlock to access control data */
+	spinlock_t ctl_lock;
+
+	/* IEC958 channel tx status bit */
+	unsigned char ch_status[4];
+
+	/* User bits */
+	unsigned char subcode[2 * SPDIF_UBITS_SIZE];
+
+	/* Q subcode part of user bits */
+	unsigned char qsub[2 * SPDIF_QSUB_SIZE];
+
+	/* Buffer offset for U/Q */
+	u32 upos;
+	u32 qpos;
+
+	/* Ready buffer index of the two buffers */
+	u32 ready_buf;
+};
+
+/**
+ * struct fsl_spdif_priv - Freescale SPDIF private data
+ * @soc: SPDIF soc data
+ * @fsl_spdif_control: SPDIF control data
+ * @cpu_dai_drv: cpu dai driver
+ * @snd_card: sound card pointer
+ * @rxrate_kcontrol: kcontrol for RX Sample Rate
+ * @pdev: platform device pointer
+ * @regmap: regmap handler
+ * @dpll_locked: dpll lock flag
+ * @txrate: the best rates for playback
+ * @txclk_df: STC_TXCLK_DF dividers value for playback
+ * @sysclk_df: STC_SYSCLK_DF dividers value for playback
+ * @txclk_src: STC_TXCLK_SRC values for playback
+ * @rxclk_src: SRPC_CLKSRC_SEL values for capture
+ * @txclk: tx clock sources for playback
+ * @rxclk: rx clock sources for capture
+ * @coreclk: core clock for register access via DMA
+ * @sysclk: system clock for rx clock rate measurement
+ * @spbaclk: SPBA clock (optional, depending on SoC design)
+ * @dma_params_tx: DMA parameters for transmit channel
+ * @dma_params_rx: DMA parameters for receive channel
+ * @regcache_srpc: regcache for SRPC
+ * @bypass: status of bypass input to output
+ * @pll8k_clk: PLL clock for the rate of multiply of 8kHz
+ * @pll11k_clk: PLL clock for the rate of multiply of 11kHz
+ */
+struct fsl_spdif_priv {
+	const struct fsl_spdif_soc_data *soc;
+	struct spdif_mixer_control fsl_spdif_control;
+	struct snd_soc_dai_driver cpu_dai_drv;
+	struct snd_card *snd_card;
+	struct snd_kcontrol *rxrate_kcontrol;
+	struct platform_device *pdev;
+	struct regmap *regmap;
+	bool dpll_locked;
+	u32 txrate[SPDIF_TXRATE_MAX];
+	u8 txclk_df[SPDIF_TXRATE_MAX];
+	u16 sysclk_df[SPDIF_TXRATE_MAX];
+	u8 txclk_src[SPDIF_TXRATE_MAX];
+	u8 rxclk_src;
+	struct clk *txclk[STC_TXCLK_SRC_MAX];
+	struct clk *rxclk;
+	struct clk *coreclk;
+	struct clk *sysclk;
+	struct clk *spbaclk;
+	struct snd_dmaengine_dai_dma_data dma_params_tx;
+	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	/* regcache for SRPC */
+	u32 regcache_srpc;
+	bool bypass;
+	struct clk *pll8k_clk;
+	struct clk *pll11k_clk;
+};
+
+static struct fsl_spdif_soc_data fsl_spdif_vf610 = {
+	.imx = false,
+	.shared_root_clock = false,
+	.raw_capture_mode = false,
+	.interrupts = 1,
+	.tx_burst = FSL_SPDIF_TXFIFO_WML,
+	.rx_burst = FSL_SPDIF_RXFIFO_WML,
+	.tx_formats = FSL_SPDIF_FORMATS_PLAYBACK,
+};
+
+static struct fsl_spdif_soc_data fsl_spdif_imx35 = {
+	.imx = true,
+	.shared_root_clock = false,
+	.raw_capture_mode = false,
+	.interrupts = 1,
+	.tx_burst = FSL_SPDIF_TXFIFO_WML,
+	.rx_burst = FSL_SPDIF_RXFIFO_WML,
+	.tx_formats = FSL_SPDIF_FORMATS_PLAYBACK,
+};
+
+static struct fsl_spdif_soc_data fsl_spdif_imx6sx = {
+	.imx = true,
+	.shared_root_clock = true,
+	.raw_capture_mode = false,
+	.interrupts = 1,
+	.tx_burst = FSL_SPDIF_TXFIFO_WML,
+	.rx_burst = FSL_SPDIF_RXFIFO_WML,
+	.tx_formats = FSL_SPDIF_FORMATS_PLAYBACK,
+
+};
+
+static struct fsl_spdif_soc_data fsl_spdif_imx8qm = {
+	.imx = true,
+	.shared_root_clock = true,
+	.raw_capture_mode = false,
+	.interrupts = 2,
+	.tx_burst = 2,		/* Applied for EDMA */
+	.rx_burst = 2,		/* Applied for EDMA */
+	.tx_formats = SNDRV_PCM_FMTBIT_S24_LE,  /* Applied for EDMA */
+};
+
+static struct fsl_spdif_soc_data fsl_spdif_imx8mm = {
+	.imx = true,
+	.shared_root_clock = false,
+	.raw_capture_mode = true,
+	.interrupts = 1,
+	.tx_burst = FSL_SPDIF_TXFIFO_WML,
+	.rx_burst = FSL_SPDIF_RXFIFO_WML,
+	.tx_formats = FSL_SPDIF_FORMATS_PLAYBACK,
+};
+
+static struct fsl_spdif_soc_data fsl_spdif_imx8ulp = {
+	.imx = true,
+	.shared_root_clock = true,
+	.raw_capture_mode = false,
+	.interrupts = 1,
+	.tx_burst = 2,		/* Applied for EDMA */
+	.rx_burst = 2,		/* Applied for EDMA */
+	.tx_formats = SNDRV_PCM_FMTBIT_S24_LE,	/* Applied for EDMA */
+	.cchannel_192b = true,
+};
+
+/* Check if clk is a root clock that does not share clock source with others */
+static inline bool fsl_spdif_can_set_clk_rate(struct fsl_spdif_priv *spdif, int clk)
+{
+	return (clk == STC_TXCLK_SPDIF_ROOT) && !spdif->soc->shared_root_clock;
+}
+
+/* DPLL locked and lock loss interrupt handler */
+static void spdif_irq_dpll_lock(struct fsl_spdif_priv *spdif_priv)
+{
+	struct regmap *regmap = spdif_priv->regmap;
+	struct platform_device *pdev = spdif_priv->pdev;
+	u32 locked;
+
+	regmap_read(regmap, REG_SPDIF_SRPC, &locked);
+	locked &= SRPC_DPLL_LOCKED;
+
+	dev_dbg(&pdev->dev, "isr: Rx dpll %s \n",
+			locked ? "locked" : "loss lock");
+
+	spdif_priv->dpll_locked = locked ? true : false;
+
+	if (spdif_priv->snd_card && spdif_priv->rxrate_kcontrol) {
+		snd_ctl_notify(spdif_priv->snd_card,
+			       SNDRV_CTL_EVENT_MASK_VALUE,
+			       &spdif_priv->rxrate_kcontrol->id);
+	}
+}
+
+/* Receiver found illegal symbol interrupt handler */
+static void spdif_irq_sym_error(struct fsl_spdif_priv *spdif_priv)
+{
+	struct regmap *regmap = spdif_priv->regmap;
+	struct platform_device *pdev = spdif_priv->pdev;
+
+	dev_dbg(&pdev->dev, "isr: receiver found illegal symbol\n");
+
+	/* Clear illegal symbol if DPLL unlocked since no audio stream */
+	if (!spdif_priv->dpll_locked)
+		regmap_update_bits(regmap, REG_SPDIF_SIE, INT_SYM_ERR, 0);
+}
+
+/* U/Q Channel receive register full */
+static void spdif_irq_uqrx_full(struct fsl_spdif_priv *spdif_priv, char name)
+{
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+	struct regmap *regmap = spdif_priv->regmap;
+	struct platform_device *pdev = spdif_priv->pdev;
+	u32 *pos, size, val, reg;
+
+	switch (name) {
+	case 'U':
+		pos = &ctrl->upos;
+		size = SPDIF_UBITS_SIZE;
+		reg = REG_SPDIF_SRU;
+		break;
+	case 'Q':
+		pos = &ctrl->qpos;
+		size = SPDIF_QSUB_SIZE;
+		reg = REG_SPDIF_SRQ;
+		break;
+	default:
+		dev_err(&pdev->dev, "unsupported channel name\n");
+		return;
+	}
+
+	dev_dbg(&pdev->dev, "isr: %c Channel receive register full\n", name);
+
+	if (*pos >= size * 2) {
+		*pos = 0;
+	} else if (unlikely((*pos % size) + 3 > size)) {
+		dev_err(&pdev->dev, "User bit receive buffer overflow\n");
+		return;
+	}
+
+	regmap_read(regmap, reg, &val);
+	ctrl->subcode[*pos++] = val >> 16;
+	ctrl->subcode[*pos++] = val >> 8;
+	ctrl->subcode[*pos++] = val;
+}
+
+/* U/Q Channel sync found */
+static void spdif_irq_uq_sync(struct fsl_spdif_priv *spdif_priv)
+{
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+	struct platform_device *pdev = spdif_priv->pdev;
+
+	dev_dbg(&pdev->dev, "isr: U/Q Channel sync found\n");
+
+	/* U/Q buffer reset */
+	if (ctrl->qpos == 0)
+		return;
+
+	/* Set ready to this buffer */
+	ctrl->ready_buf = (ctrl->qpos - 1) / SPDIF_QSUB_SIZE + 1;
+}
+
+/* U/Q Channel framing error */
+static void spdif_irq_uq_err(struct fsl_spdif_priv *spdif_priv)
+{
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+	struct regmap *regmap = spdif_priv->regmap;
+	struct platform_device *pdev = spdif_priv->pdev;
+	u32 val;
+
+	dev_dbg(&pdev->dev, "isr: U/Q Channel framing error\n");
+
+	/* Read U/Q data to clear the irq and do buffer reset */
+	regmap_read(regmap, REG_SPDIF_SRU, &val);
+	regmap_read(regmap, REG_SPDIF_SRQ, &val);
+
+	/* Drop this U/Q buffer */
+	ctrl->ready_buf = 0;
+	ctrl->upos = 0;
+	ctrl->qpos = 0;
+}
+
+/* Get spdif interrupt status and clear the interrupt */
+static u32 spdif_intr_status_clear(struct fsl_spdif_priv *spdif_priv)
+{
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 val, val2;
+
+	regmap_read(regmap, REG_SPDIF_SIS, &val);
+	regmap_read(regmap, REG_SPDIF_SIE, &val2);
+
+	regmap_write(regmap, REG_SPDIF_SIC, val & val2);
+
+	return val;
+}
+
+static irqreturn_t spdif_isr(int irq, void *devid)
+{
+	struct fsl_spdif_priv *spdif_priv = (struct fsl_spdif_priv *)devid;
+	struct platform_device *pdev = spdif_priv->pdev;
+	u32 sis;
+
+	sis = spdif_intr_status_clear(spdif_priv);
+
+	if (sis & INT_DPLL_LOCKED)
+		spdif_irq_dpll_lock(spdif_priv);
+
+	if (sis & INT_TXFIFO_UNOV)
+		dev_dbg(&pdev->dev, "isr: Tx FIFO under/overrun\n");
+
+	if (sis & INT_TXFIFO_RESYNC)
+		dev_dbg(&pdev->dev, "isr: Tx FIFO resync\n");
+
+	if (sis & INT_CNEW)
+		dev_dbg(&pdev->dev, "isr: cstatus new\n");
+
+	if (sis & INT_VAL_NOGOOD)
+		dev_dbg(&pdev->dev, "isr: validity flag no good\n");
+
+	if (sis & INT_SYM_ERR)
+		spdif_irq_sym_error(spdif_priv);
+
+	if (sis & INT_BIT_ERR)
+		dev_dbg(&pdev->dev, "isr: receiver found parity bit error\n");
+
+	if (sis & INT_URX_FUL)
+		spdif_irq_uqrx_full(spdif_priv, 'U');
+
+	if (sis & INT_URX_OV)
+		dev_dbg(&pdev->dev, "isr: U Channel receive register overrun\n");
+
+	if (sis & INT_QRX_FUL)
+		spdif_irq_uqrx_full(spdif_priv, 'Q');
+
+	if (sis & INT_QRX_OV)
+		dev_dbg(&pdev->dev, "isr: Q Channel receive register overrun\n");
+
+	if (sis & INT_UQ_SYNC)
+		spdif_irq_uq_sync(spdif_priv);
+
+	if (sis & INT_UQ_ERR)
+		spdif_irq_uq_err(spdif_priv);
+
+	if (sis & INT_RXFIFO_UNOV)
+		dev_dbg(&pdev->dev, "isr: Rx FIFO under/overrun\n");
+
+	if (sis & INT_RXFIFO_RESYNC)
+		dev_dbg(&pdev->dev, "isr: Rx FIFO resync\n");
+
+	if (sis & INT_LOSS_LOCK)
+		spdif_irq_dpll_lock(spdif_priv);
+
+	/* FIXME: Write Tx FIFO to clear TxEm */
+	if (sis & INT_TX_EM)
+		dev_dbg(&pdev->dev, "isr: Tx FIFO empty\n");
+
+	/* FIXME: Read Rx FIFO to clear RxFIFOFul */
+	if (sis & INT_RXFIFO_FUL)
+		dev_dbg(&pdev->dev, "isr: Rx FIFO full\n");
+
+	return IRQ_HANDLED;
+}
+
+static int spdif_softreset(struct fsl_spdif_priv *spdif_priv)
+{
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 val, cycle = 1000;
+
+	regcache_cache_bypass(regmap, true);
+
+	regmap_write(regmap, REG_SPDIF_SCR, SCR_SOFT_RESET);
+
+	/*
+	 * RESET bit would be cleared after finishing its reset procedure,
+	 * which typically lasts 8 cycles. 1000 cycles will keep it safe.
+	 */
+	do {
+		regmap_read(regmap, REG_SPDIF_SCR, &val);
+	} while ((val & SCR_SOFT_RESET) && cycle--);
+
+	regcache_cache_bypass(regmap, false);
+	regcache_mark_dirty(regmap);
+	regcache_sync(regmap);
+
+	if (cycle)
+		return 0;
+	else
+		return -EBUSY;
+}
+
+static void spdif_set_cstatus(struct spdif_mixer_control *ctrl,
+				u8 mask, u8 cstatus)
+{
+	ctrl->ch_status[3] &= ~mask;
+	ctrl->ch_status[3] |= cstatus & mask;
+}
+
+static void spdif_write_channel_status(struct fsl_spdif_priv *spdif_priv)
+{
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+	struct regmap *regmap = spdif_priv->regmap;
+	struct platform_device *pdev = spdif_priv->pdev;
+	u32 ch_status;
+
+	ch_status = (bitrev8(ctrl->ch_status[0]) << 16) |
+		    (bitrev8(ctrl->ch_status[1]) << 8) |
+		    bitrev8(ctrl->ch_status[2]);
+	regmap_write(regmap, REG_SPDIF_STCSCH, ch_status);
+
+	dev_dbg(&pdev->dev, "STCSCH: 0x%06x\n", ch_status);
+
+	ch_status = bitrev8(ctrl->ch_status[3]) << 16;
+	regmap_write(regmap, REG_SPDIF_STCSCL, ch_status);
+
+	dev_dbg(&pdev->dev, "STCSCL: 0x%06x\n", ch_status);
+
+	if (spdif_priv->soc->cchannel_192b) {
+		ch_status = (bitrev8(ctrl->ch_status[0]) << 24) |
+			    (bitrev8(ctrl->ch_status[1]) << 16) |
+			    (bitrev8(ctrl->ch_status[2]) << 8) |
+			    bitrev8(ctrl->ch_status[3]);
+
+		regmap_update_bits(regmap, REG_SPDIF_SCR, 0x1000000, 0x1000000);
+
+		/*
+		 * The first 32bit should be in REG_SPDIF_STCCA_31_0 register,
+		 * but here we need to set REG_SPDIF_STCCA_191_160 on 8ULP
+		 * then can get correct result with HDMI analyzer capture.
+		 * There is a hardware bug here.
+		 */
+		regmap_write(regmap, REG_SPDIF_STCCA_191_160, ch_status);
+	}
+}
+
+/* Set SPDIF PhaseConfig register for rx clock */
+static int spdif_set_rx_clksrc(struct fsl_spdif_priv *spdif_priv,
+				enum spdif_gainsel gainsel, int dpll_locked)
+{
+	struct regmap *regmap = spdif_priv->regmap;
+	u8 clksrc = spdif_priv->rxclk_src;
+
+	if (clksrc >= SRPC_CLKSRC_MAX || gainsel >= GAINSEL_MULTI_MAX)
+		return -EINVAL;
+
+	regmap_update_bits(regmap, REG_SPDIF_SRPC,
+			SRPC_CLKSRC_SEL_MASK | SRPC_GAINSEL_MASK,
+			SRPC_CLKSRC_SEL_SET(clksrc) | SRPC_GAINSEL_SET(gainsel));
+
+	return 0;
+}
+
+static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv, enum spdif_txrate index);
+
+static int spdif_set_sample_rate(struct snd_pcm_substream *substream,
+				int sample_rate)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+	struct regmap *regmap = spdif_priv->regmap;
+	struct platform_device *pdev = spdif_priv->pdev;
+	unsigned long csfs = 0;
+	u32 stc, mask, rate;
+	u16 sysclk_df;
+	u8 clk, txclk_df;
+	int ret;
+
+	switch (sample_rate) {
+	case 32000:
+		rate = SPDIF_TXRATE_32000;
+		csfs = IEC958_AES3_CON_FS_32000;
+		break;
+	case 44100:
+		rate = SPDIF_TXRATE_44100;
+		csfs = IEC958_AES3_CON_FS_44100;
+		break;
+	case 48000:
+		rate = SPDIF_TXRATE_48000;
+		csfs = IEC958_AES3_CON_FS_48000;
+		break;
+	case 88200:
+		rate = SPDIF_TXRATE_88200;
+		csfs = IEC958_AES3_CON_FS_88200;
+		break;
+	case 96000:
+		rate = SPDIF_TXRATE_96000;
+		csfs = IEC958_AES3_CON_FS_96000;
+		break;
+	case 176400:
+		rate = SPDIF_TXRATE_176400;
+		csfs = IEC958_AES3_CON_FS_176400;
+		break;
+	case 192000:
+		rate = SPDIF_TXRATE_192000;
+		csfs = IEC958_AES3_CON_FS_192000;
+		break;
+	default:
+		dev_err(&pdev->dev, "unsupported sample rate %d\n", sample_rate);
+		return -EINVAL;
+	}
+
+	ret = fsl_spdif_probe_txclk(spdif_priv, rate);
+	if (ret)
+		return ret;
+
+	clk = spdif_priv->txclk_src[rate];
+	if (clk >= STC_TXCLK_SRC_MAX) {
+		dev_err(&pdev->dev, "tx clock source is out of range\n");
+		return -EINVAL;
+	}
+
+	txclk_df = spdif_priv->txclk_df[rate];
+	if (txclk_df == 0) {
+		dev_err(&pdev->dev, "the txclk_df can't be zero\n");
+		return -EINVAL;
+	}
+
+	sysclk_df = spdif_priv->sysclk_df[rate];
+
+	if (!fsl_spdif_can_set_clk_rate(spdif_priv, clk))
+		goto clk_set_bypass;
+
+	/* The S/PDIF block needs a clock of 64 * fs * txclk_df */
+	ret = clk_set_rate(spdif_priv->txclk[clk],
+			   64 * sample_rate * txclk_df);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to set tx clock rate\n");
+		return ret;
+	}
+
+clk_set_bypass:
+	dev_dbg(&pdev->dev, "expected clock rate = %d\n",
+			(64 * sample_rate * txclk_df * sysclk_df));
+	dev_dbg(&pdev->dev, "actual clock rate = %ld\n",
+			clk_get_rate(spdif_priv->txclk[clk]));
+
+	/* set fs field in consumer channel status */
+	spdif_set_cstatus(ctrl, IEC958_AES3_CON_FS, csfs);
+
+	/* select clock source and divisor */
+	stc = STC_TXCLK_ALL_EN | STC_TXCLK_SRC_SET(clk) |
+	      STC_TXCLK_DF(txclk_df) | STC_SYSCLK_DF(sysclk_df);
+	mask = STC_TXCLK_ALL_EN_MASK | STC_TXCLK_SRC_MASK |
+	       STC_TXCLK_DF_MASK | STC_SYSCLK_DF_MASK;
+	regmap_update_bits(regmap, REG_SPDIF_STC, mask, stc);
+
+	dev_dbg(&pdev->dev, "set sample rate to %dHz for %dHz playback\n",
+			spdif_priv->txrate[rate], sample_rate);
+
+	return 0;
+}
+
+static int fsl_spdif_startup(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	struct platform_device *pdev = spdif_priv->pdev;
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 scr, mask;
+	int ret;
+
+	/* Reset module and interrupts only for first initialization */
+	if (!snd_soc_dai_active(cpu_dai)) {
+		ret = spdif_softreset(spdif_priv);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to soft reset\n");
+			return ret;
+		}
+
+		/* Disable all the interrupts */
+		regmap_update_bits(regmap, REG_SPDIF_SIE, 0xffffff, 0);
+	}
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		scr = SCR_TXFIFO_AUTOSYNC | SCR_TXFIFO_CTRL_NORMAL |
+			SCR_TXSEL_NORMAL | SCR_USRC_SEL_CHIP |
+			SCR_TXFIFO_FSEL_IF8;
+		mask = SCR_TXFIFO_AUTOSYNC_MASK | SCR_TXFIFO_CTRL_MASK |
+			SCR_TXSEL_MASK | SCR_USRC_SEL_MASK |
+			SCR_TXFIFO_FSEL_MASK;
+	} else {
+		scr = SCR_RXFIFO_FSEL_IF8 | SCR_RXFIFO_AUTOSYNC;
+		mask = SCR_RXFIFO_FSEL_MASK | SCR_RXFIFO_AUTOSYNC_MASK|
+			SCR_RXFIFO_CTL_MASK | SCR_RXFIFO_OFF_MASK;
+	}
+	regmap_update_bits(regmap, REG_SPDIF_SCR, mask, scr);
+
+	/* Power up SPDIF module */
+	regmap_update_bits(regmap, REG_SPDIF_SCR, SCR_LOW_POWER, 0);
+
+	return 0;
+}
+
+static void fsl_spdif_shutdown(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 scr, mask;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		scr = 0;
+		mask = SCR_TXFIFO_AUTOSYNC_MASK | SCR_TXFIFO_CTRL_MASK |
+			SCR_TXSEL_MASK | SCR_USRC_SEL_MASK |
+			SCR_TXFIFO_FSEL_MASK;
+		/* Disable TX clock */
+		regmap_update_bits(regmap, REG_SPDIF_STC, STC_TXCLK_ALL_EN_MASK, 0);
+	} else {
+		scr = SCR_RXFIFO_OFF | SCR_RXFIFO_CTL_ZERO;
+		mask = SCR_RXFIFO_FSEL_MASK | SCR_RXFIFO_AUTOSYNC_MASK|
+			SCR_RXFIFO_CTL_MASK | SCR_RXFIFO_OFF_MASK;
+	}
+	regmap_update_bits(regmap, REG_SPDIF_SCR, mask, scr);
+
+	/* Power down SPDIF module only if tx&rx are both inactive */
+	if (!snd_soc_dai_active(cpu_dai)) {
+		spdif_intr_status_clear(spdif_priv);
+		regmap_update_bits(regmap, REG_SPDIF_SCR,
+				SCR_LOW_POWER, SCR_LOW_POWER);
+	}
+}
+
+static int spdif_reparent_rootclk(struct fsl_spdif_priv *spdif_priv, unsigned int sample_rate)
+{
+	struct platform_device *pdev = spdif_priv->pdev;
+	struct clk *clk;
+	int ret;
+
+	/* Reparent clock if required condition is true */
+	if (!fsl_spdif_can_set_clk_rate(spdif_priv, STC_TXCLK_SPDIF_ROOT))
+		return 0;
+
+	/* Get root clock */
+	clk = spdif_priv->txclk[STC_TXCLK_SPDIF_ROOT];
+
+	/* Disable clock first, for it was enabled by pm_runtime */
+	clk_disable_unprepare(clk);
+	fsl_asoc_reparent_pll_clocks(&pdev->dev, clk, spdif_priv->pll8k_clk,
+				     spdif_priv->pll11k_clk, sample_rate);
+	ret = clk_prepare_enable(clk);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+static int fsl_spdif_hw_params(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params,
+				struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+	struct platform_device *pdev = spdif_priv->pdev;
+	u32 sample_rate = params_rate(params);
+	int ret = 0;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		ret = spdif_reparent_rootclk(spdif_priv, sample_rate);
+		if (ret) {
+			dev_err(&pdev->dev, "%s: reparent root clk failed: %d\n",
+				__func__, sample_rate);
+			return ret;
+		}
+
+		ret  = spdif_set_sample_rate(substream, sample_rate);
+		if (ret) {
+			dev_err(&pdev->dev, "%s: set sample rate failed: %d\n",
+					__func__, sample_rate);
+			return ret;
+		}
+		spdif_set_cstatus(ctrl, IEC958_AES3_CON_CLOCK,
+				  IEC958_AES3_CON_CLOCK_1000PPM);
+		spdif_write_channel_status(spdif_priv);
+	} else {
+		/* Setup rx clock source */
+		ret = spdif_set_rx_clksrc(spdif_priv, SPDIF_DEFAULT_GAINSEL, 1);
+	}
+
+	return ret;
+}
+
+static int fsl_spdif_trigger(struct snd_pcm_substream *substream,
+				int cmd, struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	struct regmap *regmap = spdif_priv->regmap;
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	u32 intr = SIE_INTR_FOR(tx);
+	u32 dmaen = SCR_DMA_xX_EN(tx);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		regmap_update_bits(regmap, REG_SPDIF_SIE, intr, intr);
+		regmap_update_bits(regmap, REG_SPDIF_SCR, dmaen, dmaen);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		regmap_update_bits(regmap, REG_SPDIF_SCR, dmaen, 0);
+		regmap_update_bits(regmap, REG_SPDIF_SIE, intr, 0);
+		regmap_write(regmap, REG_SPDIF_STL, 0x0);
+		regmap_write(regmap, REG_SPDIF_STR, 0x0);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops fsl_spdif_dai_ops = {
+	.startup = fsl_spdif_startup,
+	.hw_params = fsl_spdif_hw_params,
+	.trigger = fsl_spdif_trigger,
+	.shutdown = fsl_spdif_shutdown,
+};
+
+
+/*
+ * FSL SPDIF IEC958 controller(mixer) functions
+ *
+ *	Channel status get/put control
+ *	User bit value get/put control
+ *	Valid bit value get control
+ *	DPLL lock status get control
+ *	User bit sync mode selection control
+ */
+
+static int fsl_spdif_info(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+
+	return 0;
+}
+
+static int fsl_spdif_pb_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+
+	uvalue->value.iec958.status[0] = ctrl->ch_status[0];
+	uvalue->value.iec958.status[1] = ctrl->ch_status[1];
+	uvalue->value.iec958.status[2] = ctrl->ch_status[2];
+	uvalue->value.iec958.status[3] = ctrl->ch_status[3];
+
+	return 0;
+}
+
+static int fsl_spdif_pb_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+
+	ctrl->ch_status[0] = uvalue->value.iec958.status[0];
+	ctrl->ch_status[1] = uvalue->value.iec958.status[1];
+	ctrl->ch_status[2] = uvalue->value.iec958.status[2];
+	ctrl->ch_status[3] = uvalue->value.iec958.status[3];
+
+	spdif_write_channel_status(spdif_priv);
+
+	return 0;
+}
+
+/* Get channel status from SPDIF_RX_CCHAN register */
+static int fsl_spdif_capture_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 cstatus, val;
+
+	regmap_read(regmap, REG_SPDIF_SIS, &val);
+	if (!(val & INT_CNEW))
+		return -EAGAIN;
+
+	regmap_read(regmap, REG_SPDIF_SRCSH, &cstatus);
+	ucontrol->value.iec958.status[0] = (cstatus >> 16) & 0xFF;
+	ucontrol->value.iec958.status[1] = (cstatus >> 8) & 0xFF;
+	ucontrol->value.iec958.status[2] = cstatus & 0xFF;
+
+	regmap_read(regmap, REG_SPDIF_SRCSL, &cstatus);
+	ucontrol->value.iec958.status[3] = (cstatus >> 16) & 0xFF;
+	ucontrol->value.iec958.status[4] = (cstatus >> 8) & 0xFF;
+	ucontrol->value.iec958.status[5] = cstatus & 0xFF;
+
+	/* Clear intr */
+	regmap_write(regmap, REG_SPDIF_SIC, INT_CNEW);
+
+	return 0;
+}
+
+/*
+ * Get User bits (subcode) from chip value which readed out
+ * in UChannel register.
+ */
+static int fsl_spdif_subcode_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+	unsigned long flags;
+	int ret = -EAGAIN;
+
+	spin_lock_irqsave(&ctrl->ctl_lock, flags);
+	if (ctrl->ready_buf) {
+		int idx = (ctrl->ready_buf - 1) * SPDIF_UBITS_SIZE;
+		memcpy(&ucontrol->value.iec958.subcode[0],
+				&ctrl->subcode[idx], SPDIF_UBITS_SIZE);
+		ret = 0;
+	}
+	spin_unlock_irqrestore(&ctrl->ctl_lock, flags);
+
+	return ret;
+}
+
+/* Q-subcode information. The byte size is SPDIF_UBITS_SIZE/8 */
+static int fsl_spdif_qinfo(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+	uinfo->count = SPDIF_QSUB_SIZE;
+
+	return 0;
+}
+
+/* Get Q subcode from chip value which readed out in QChannel register */
+static int fsl_spdif_qget(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct spdif_mixer_control *ctrl = &spdif_priv->fsl_spdif_control;
+	unsigned long flags;
+	int ret = -EAGAIN;
+
+	spin_lock_irqsave(&ctrl->ctl_lock, flags);
+	if (ctrl->ready_buf) {
+		int idx = (ctrl->ready_buf - 1) * SPDIF_QSUB_SIZE;
+		memcpy(&ucontrol->value.bytes.data[0],
+				&ctrl->qsub[idx], SPDIF_QSUB_SIZE);
+		ret = 0;
+	}
+	spin_unlock_irqrestore(&ctrl->ctl_lock, flags);
+
+	return ret;
+}
+
+/* Get valid good bit from interrupt status register */
+static int fsl_spdif_rx_vbit_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 val;
+
+	regmap_read(regmap, REG_SPDIF_SIS, &val);
+	ucontrol->value.integer.value[0] = (val & INT_VAL_NOGOOD) != 0;
+	regmap_write(regmap, REG_SPDIF_SIC, INT_VAL_NOGOOD);
+
+	return 0;
+}
+
+static int fsl_spdif_tx_vbit_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 val;
+
+	regmap_read(regmap, REG_SPDIF_SCR, &val);
+	val = (val & SCR_VAL_MASK) >> SCR_VAL_OFFSET;
+	val = 1 - val;
+	ucontrol->value.integer.value[0] = val;
+
+	return 0;
+}
+
+static int fsl_spdif_tx_vbit_put(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 val = (1 - ucontrol->value.integer.value[0]) << SCR_VAL_OFFSET;
+
+	regmap_update_bits(regmap, REG_SPDIF_SCR, SCR_VAL_MASK, val);
+
+	return 0;
+}
+
+static int fsl_spdif_rx_rcm_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 val;
+
+	regmap_read(regmap, REG_SPDIF_SCR, &val);
+	val = (val & SCR_RAW_CAPTURE_MODE) ? 1 : 0;
+	ucontrol->value.integer.value[0] = val;
+
+	return 0;
+}
+
+static int fsl_spdif_rx_rcm_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 val = (ucontrol->value.integer.value[0] ? SCR_RAW_CAPTURE_MODE : 0);
+
+	if (val)
+		cpu_dai->driver->capture.formats |= SNDRV_PCM_FMTBIT_S32_LE;
+	else
+		cpu_dai->driver->capture.formats &= ~SNDRV_PCM_FMTBIT_S32_LE;
+
+	regmap_update_bits(regmap, REG_SPDIF_SCR, SCR_RAW_CAPTURE_MODE, val);
+
+	return 0;
+}
+
+static int fsl_spdif_bypass_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *priv = snd_soc_dai_get_drvdata(dai);
+
+	ucontrol->value.integer.value[0] = priv->bypass ? 1 : 0;
+
+	return 0;
+}
+
+static int fsl_spdif_bypass_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *priv = snd_soc_dai_get_drvdata(dai);
+	struct snd_soc_card *card = dai->component->card;
+	bool set = (ucontrol->value.integer.value[0] != 0);
+	struct regmap *regmap = priv->regmap;
+	struct snd_soc_pcm_runtime *rtd;
+	u32 scr, mask;
+	int stream;
+
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link);
+
+	if (priv->bypass == set)
+		return 0; /* nothing to do */
+
+	if (snd_soc_dai_active(dai)) {
+		dev_err(dai->dev, "Cannot change BYPASS mode while stream is running.\n");
+		return -EBUSY;
+	}
+
+	pm_runtime_get_sync(dai->dev);
+
+	if (set) {
+		/* Disable interrupts */
+		regmap_update_bits(regmap, REG_SPDIF_SIE, 0xffffff, 0);
+
+		/* Configure BYPASS mode */
+		scr = SCR_TXSEL_RX | SCR_RXFIFO_OFF;
+		mask = SCR_RXFIFO_FSEL_MASK | SCR_RXFIFO_AUTOSYNC_MASK |
+			SCR_RXFIFO_CTL_MASK | SCR_RXFIFO_OFF_MASK | SCR_TXSEL_MASK;
+		/* Power up SPDIF module */
+		mask |= SCR_LOW_POWER;
+	} else {
+		/* Power down SPDIF module, disable TX */
+		scr = SCR_LOW_POWER | SCR_TXSEL_OFF;
+		mask = SCR_LOW_POWER | SCR_TXSEL_MASK;
+	}
+
+	regmap_update_bits(regmap, REG_SPDIF_SCR, mask, scr);
+
+	/* Disable playback & capture if BYPASS mode is enabled, enable otherwise */
+	for_each_pcm_streams(stream)
+		rtd->pcm->streams[stream].substream_count = (set ? 0 : 1);
+
+	priv->bypass = set;
+	pm_runtime_put_sync(dai->dev);
+
+	return 0;
+}
+
+/* DPLL lock information */
+static int fsl_spdif_rxrate_info(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 16000;
+	uinfo->value.integer.max = 192000;
+
+	return 0;
+}
+
+static u32 gainsel_multi[GAINSEL_MULTI_MAX] = {
+	24, 16, 12, 8, 6, 4, 3,
+};
+
+/* Get RX data clock rate given the SPDIF bus_clk */
+static int spdif_get_rxclk_rate(struct fsl_spdif_priv *spdif_priv,
+				enum spdif_gainsel gainsel)
+{
+	struct regmap *regmap = spdif_priv->regmap;
+	struct platform_device *pdev = spdif_priv->pdev;
+	u64 tmpval64, busclk_freq = 0;
+	u32 freqmeas, phaseconf;
+	u8 clksrc;
+
+	regmap_read(regmap, REG_SPDIF_SRFM, &freqmeas);
+	regmap_read(regmap, REG_SPDIF_SRPC, &phaseconf);
+
+	clksrc = (phaseconf >> SRPC_CLKSRC_SEL_OFFSET) & 0xf;
+
+	/* Get bus clock from system */
+	if (srpc_dpll_locked[clksrc] && (phaseconf & SRPC_DPLL_LOCKED))
+		busclk_freq = clk_get_rate(spdif_priv->sysclk);
+
+	/* FreqMeas_CLK = (BUS_CLK * FreqMeas) / 2 ^ 10 / GAINSEL / 128 */
+	tmpval64 = (u64) busclk_freq * freqmeas;
+	do_div(tmpval64, gainsel_multi[gainsel] * 1024);
+	do_div(tmpval64, 128 * 1024);
+
+	dev_dbg(&pdev->dev, "FreqMeas: %d\n", freqmeas);
+	dev_dbg(&pdev->dev, "BusclkFreq: %lld\n", busclk_freq);
+	dev_dbg(&pdev->dev, "RxRate: %lld\n", tmpval64);
+
+	return (int)tmpval64;
+}
+
+/*
+ * Get DPLL lock or not info from stable interrupt status register.
+ * User application must use this control to get locked,
+ * then can do next PCM operation
+ */
+static int fsl_spdif_rxrate_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	int rate = 0;
+
+	if (spdif_priv->dpll_locked)
+		rate = spdif_get_rxclk_rate(spdif_priv, SPDIF_DEFAULT_GAINSEL);
+
+	ucontrol->value.integer.value[0] = rate;
+
+	return 0;
+}
+
+/*
+ * User bit sync mode:
+ * 1 CD User channel subcode
+ * 0 Non-CD data
+ */
+static int fsl_spdif_usync_get(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 val;
+
+	regmap_read(regmap, REG_SPDIF_SRCD, &val);
+	ucontrol->value.integer.value[0] = (val & SRCD_CD_USER) != 0;
+
+	return 0;
+}
+
+/*
+ * User bit sync mode:
+ * 1 CD User channel subcode
+ * 0 Non-CD data
+ */
+static int fsl_spdif_usync_put(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_spdif_priv *spdif_priv = snd_soc_dai_get_drvdata(cpu_dai);
+	struct regmap *regmap = spdif_priv->regmap;
+	u32 val = ucontrol->value.integer.value[0] << SRCD_CD_USER_OFFSET;
+
+	regmap_update_bits(regmap, REG_SPDIF_SRCD, SRCD_CD_USER, val);
+
+	return 0;
+}
+
+/* FSL SPDIF IEC958 controller defines */
+static struct snd_kcontrol_new fsl_spdif_ctrls[] = {
+	/* Status cchanel controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_WRITE |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = fsl_spdif_info,
+		.get = fsl_spdif_pb_get,
+		.put = fsl_spdif_pb_put,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = fsl_spdif_info,
+		.get = fsl_spdif_capture_get,
+	},
+	/* User bits controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "IEC958 Subcode Capture Default",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = fsl_spdif_info,
+		.get = fsl_spdif_subcode_get,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "IEC958 Q-subcode Capture Default",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = fsl_spdif_qinfo,
+		.get = fsl_spdif_qget,
+	},
+	/* Valid bit error controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "IEC958 RX V-Bit Errors",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = snd_ctl_boolean_mono_info,
+		.get = fsl_spdif_rx_vbit_get,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "IEC958 TX V-Bit",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_WRITE |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = snd_ctl_boolean_mono_info,
+		.get = fsl_spdif_tx_vbit_get,
+		.put = fsl_spdif_tx_vbit_put,
+	},
+	/* DPLL lock info get controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = RX_SAMPLE_RATE_KCONTROL,
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = fsl_spdif_rxrate_info,
+		.get = fsl_spdif_rxrate_get,
+	},
+	/* RX bypass controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "Bypass Mode",
+		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+		.info = snd_ctl_boolean_mono_info,
+		.get = fsl_spdif_bypass_get,
+		.put = fsl_spdif_bypass_put,
+	},
+	/* User bit sync mode set/get controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "IEC958 USyncMode CDText",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_WRITE |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = snd_ctl_boolean_mono_info,
+		.get = fsl_spdif_usync_get,
+		.put = fsl_spdif_usync_put,
+	},
+};
+
+static struct snd_kcontrol_new fsl_spdif_ctrls_rcm[] = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "IEC958 Raw Capture Mode",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_WRITE |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = snd_ctl_boolean_mono_info,
+		.get = fsl_spdif_rx_rcm_get,
+		.put = fsl_spdif_rx_rcm_put,
+	},
+};
+
+static int fsl_spdif_dai_probe(struct snd_soc_dai *dai)
+{
+	struct fsl_spdif_priv *spdif_private = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &spdif_private->dma_params_tx,
+				  &spdif_private->dma_params_rx);
+
+	snd_soc_add_dai_controls(dai, fsl_spdif_ctrls, ARRAY_SIZE(fsl_spdif_ctrls));
+
+	if (spdif_private->soc->raw_capture_mode)
+		snd_soc_add_dai_controls(dai, fsl_spdif_ctrls_rcm,
+					 ARRAY_SIZE(fsl_spdif_ctrls_rcm));
+
+	spdif_private->snd_card = dai->component->card->snd_card;
+	spdif_private->rxrate_kcontrol = snd_soc_card_get_kcontrol(dai->component->card,
+								   RX_SAMPLE_RATE_KCONTROL);
+	if (!spdif_private->rxrate_kcontrol)
+		dev_err(&spdif_private->pdev->dev, "failed to get %s kcontrol\n",
+			RX_SAMPLE_RATE_KCONTROL);
+
+	/*Clear the val bit for Tx*/
+	regmap_update_bits(spdif_private->regmap, REG_SPDIF_SCR,
+			   SCR_VAL_MASK, SCR_VAL_CLEAR);
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver fsl_spdif_dai = {
+	.probe = &fsl_spdif_dai_probe,
+	.playback = {
+		.stream_name = "CPU-Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = FSL_SPDIF_RATES_PLAYBACK,
+		.formats = FSL_SPDIF_FORMATS_PLAYBACK,
+	},
+	.capture = {
+		.stream_name = "CPU-Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = FSL_SPDIF_RATES_CAPTURE,
+		.formats = FSL_SPDIF_FORMATS_CAPTURE,
+	},
+	.ops = &fsl_spdif_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_spdif_component = {
+	.name			= "fsl-spdif",
+	.legacy_dai_naming	= 1,
+};
+
+/* FSL SPDIF REGMAP */
+static const struct reg_default fsl_spdif_reg_defaults[] = {
+	{REG_SPDIF_SCR,    0x00000400},
+	{REG_SPDIF_SRCD,   0x00000000},
+	{REG_SPDIF_SIE,	   0x00000000},
+	{REG_SPDIF_STL,	   0x00000000},
+	{REG_SPDIF_STR,	   0x00000000},
+	{REG_SPDIF_STCSCH, 0x00000000},
+	{REG_SPDIF_STCSCL, 0x00000000},
+	{REG_SPDIF_STCSPH, 0x00000000},
+	{REG_SPDIF_STCSPL, 0x00000000},
+	{REG_SPDIF_STC,	   0x00020f00},
+};
+
+static bool fsl_spdif_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_SPDIF_SCR:
+	case REG_SPDIF_SRCD:
+	case REG_SPDIF_SRPC:
+	case REG_SPDIF_SIE:
+	case REG_SPDIF_SIS:
+	case REG_SPDIF_SRL:
+	case REG_SPDIF_SRR:
+	case REG_SPDIF_SRCSH:
+	case REG_SPDIF_SRCSL:
+	case REG_SPDIF_SRU:
+	case REG_SPDIF_SRQ:
+	case REG_SPDIF_STCSCH:
+	case REG_SPDIF_STCSCL:
+	case REG_SPDIF_STCSPH:
+	case REG_SPDIF_STCSPL:
+	case REG_SPDIF_SRFM:
+	case REG_SPDIF_STC:
+	case REG_SPDIF_SRCCA_31_0:
+	case REG_SPDIF_SRCCA_63_32:
+	case REG_SPDIF_SRCCA_95_64:
+	case REG_SPDIF_SRCCA_127_96:
+	case REG_SPDIF_SRCCA_159_128:
+	case REG_SPDIF_SRCCA_191_160:
+	case REG_SPDIF_STCCA_31_0:
+	case REG_SPDIF_STCCA_63_32:
+	case REG_SPDIF_STCCA_95_64:
+	case REG_SPDIF_STCCA_127_96:
+	case REG_SPDIF_STCCA_159_128:
+	case REG_SPDIF_STCCA_191_160:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_spdif_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_SPDIF_SRPC:
+	case REG_SPDIF_SIS:
+	case REG_SPDIF_SRL:
+	case REG_SPDIF_SRR:
+	case REG_SPDIF_SRCSH:
+	case REG_SPDIF_SRCSL:
+	case REG_SPDIF_SRU:
+	case REG_SPDIF_SRQ:
+	case REG_SPDIF_SRFM:
+	case REG_SPDIF_SRCCA_31_0:
+	case REG_SPDIF_SRCCA_63_32:
+	case REG_SPDIF_SRCCA_95_64:
+	case REG_SPDIF_SRCCA_127_96:
+	case REG_SPDIF_SRCCA_159_128:
+	case REG_SPDIF_SRCCA_191_160:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_spdif_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_SPDIF_SCR:
+	case REG_SPDIF_SRCD:
+	case REG_SPDIF_SRPC:
+	case REG_SPDIF_SIE:
+	case REG_SPDIF_SIC:
+	case REG_SPDIF_STL:
+	case REG_SPDIF_STR:
+	case REG_SPDIF_STCSCH:
+	case REG_SPDIF_STCSCL:
+	case REG_SPDIF_STCSPH:
+	case REG_SPDIF_STCSPL:
+	case REG_SPDIF_STC:
+	case REG_SPDIF_STCCA_31_0:
+	case REG_SPDIF_STCCA_63_32:
+	case REG_SPDIF_STCCA_95_64:
+	case REG_SPDIF_STCCA_127_96:
+	case REG_SPDIF_STCCA_159_128:
+	case REG_SPDIF_STCCA_191_160:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config fsl_spdif_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+
+	.max_register = REG_SPDIF_STCCA_191_160,
+	.reg_defaults = fsl_spdif_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(fsl_spdif_reg_defaults),
+	.readable_reg = fsl_spdif_readable_reg,
+	.volatile_reg = fsl_spdif_volatile_reg,
+	.writeable_reg = fsl_spdif_writeable_reg,
+	.cache_type = REGCACHE_FLAT,
+};
+
+static u32 fsl_spdif_txclk_caldiv(struct fsl_spdif_priv *spdif_priv,
+				struct clk *clk, u64 savesub,
+				enum spdif_txrate index, bool round)
+{
+	static const u32 rate[] = { 32000, 44100, 48000, 88200, 96000, 176400,
+				    192000, };
+	bool is_sysclk = clk_is_match(clk, spdif_priv->sysclk);
+	u64 rate_ideal, rate_actual, sub;
+	u32 arate;
+	u16 sysclk_dfmin, sysclk_dfmax, sysclk_df;
+	u8 txclk_df;
+
+	/* The sysclk has an extra divisor [2, 512] */
+	sysclk_dfmin = is_sysclk ? 2 : 1;
+	sysclk_dfmax = is_sysclk ? 512 : 1;
+
+	for (sysclk_df = sysclk_dfmin; sysclk_df <= sysclk_dfmax; sysclk_df++) {
+		for (txclk_df = 1; txclk_df <= 128; txclk_df++) {
+			rate_ideal = rate[index] * txclk_df * 64ULL;
+			if (round)
+				rate_actual = clk_round_rate(clk, rate_ideal);
+			else
+				rate_actual = clk_get_rate(clk);
+
+			arate = rate_actual / 64;
+			arate /= txclk_df * sysclk_df;
+
+			if (arate == rate[index]) {
+				/* We are lucky */
+				savesub = 0;
+				spdif_priv->txclk_df[index] = txclk_df;
+				spdif_priv->sysclk_df[index] = sysclk_df;
+				spdif_priv->txrate[index] = arate;
+				goto out;
+			} else if (arate / rate[index] == 1) {
+				/* A little bigger than expect */
+				sub = (u64)(arate - rate[index]) * 100000;
+				do_div(sub, rate[index]);
+				if (sub >= savesub)
+					continue;
+				savesub = sub;
+				spdif_priv->txclk_df[index] = txclk_df;
+				spdif_priv->sysclk_df[index] = sysclk_df;
+				spdif_priv->txrate[index] = arate;
+			} else if (rate[index] / arate == 1) {
+				/* A little smaller than expect */
+				sub = (u64)(rate[index] - arate) * 100000;
+				do_div(sub, rate[index]);
+				if (sub >= savesub)
+					continue;
+				savesub = sub;
+				spdif_priv->txclk_df[index] = txclk_df;
+				spdif_priv->sysclk_df[index] = sysclk_df;
+				spdif_priv->txrate[index] = arate;
+			}
+		}
+	}
+
+out:
+	return savesub;
+}
+
+static int fsl_spdif_probe_txclk(struct fsl_spdif_priv *spdif_priv,
+				enum spdif_txrate index)
+{
+	static const u32 rate[] = { 32000, 44100, 48000, 88200, 96000, 176400,
+				    192000, };
+	struct platform_device *pdev = spdif_priv->pdev;
+	struct device *dev = &pdev->dev;
+	u64 savesub = 100000, ret;
+	struct clk *clk;
+	int i;
+
+	for (i = 0; i < STC_TXCLK_SRC_MAX; i++) {
+		clk = spdif_priv->txclk[i];
+		if (IS_ERR(clk)) {
+			dev_err(dev, "no rxtx%d clock in devicetree\n", i);
+			return PTR_ERR(clk);
+		}
+		if (!clk_get_rate(clk))
+			continue;
+
+		ret = fsl_spdif_txclk_caldiv(spdif_priv, clk, savesub, index,
+					     fsl_spdif_can_set_clk_rate(spdif_priv, i));
+		if (savesub == ret)
+			continue;
+
+		savesub = ret;
+		spdif_priv->txclk_src[index] = i;
+
+		/* To quick catch a divisor, we allow a 0.1% deviation */
+		if (savesub < 100)
+			break;
+	}
+
+	dev_dbg(dev, "use rxtx%d as tx clock source for %dHz sample rate\n",
+			spdif_priv->txclk_src[index], rate[index]);
+	dev_dbg(dev, "use txclk df %d for %dHz sample rate\n",
+			spdif_priv->txclk_df[index], rate[index]);
+	if (clk_is_match(spdif_priv->txclk[spdif_priv->txclk_src[index]], spdif_priv->sysclk))
+		dev_dbg(dev, "use sysclk df %d for %dHz sample rate\n",
+				spdif_priv->sysclk_df[index], rate[index]);
+	dev_dbg(dev, "the best rate for %dHz sample rate is %dHz\n",
+			rate[index], spdif_priv->txrate[index]);
+
+	return 0;
+}
+
+static int fsl_spdif_probe(struct platform_device *pdev)
+{
+	struct fsl_spdif_priv *spdif_priv;
+	struct spdif_mixer_control *ctrl;
+	struct resource *res;
+	void __iomem *regs;
+	int irq, ret, i;
+	char tmp[16];
+
+	spdif_priv = devm_kzalloc(&pdev->dev, sizeof(*spdif_priv), GFP_KERNEL);
+	if (!spdif_priv)
+		return -ENOMEM;
+
+	spdif_priv->pdev = pdev;
+
+	spdif_priv->soc = of_device_get_match_data(&pdev->dev);
+
+	/* Initialize this copy of the CPU DAI driver structure */
+	memcpy(&spdif_priv->cpu_dai_drv, &fsl_spdif_dai, sizeof(fsl_spdif_dai));
+	spdif_priv->cpu_dai_drv.name = dev_name(&pdev->dev);
+	spdif_priv->cpu_dai_drv.playback.formats =
+				spdif_priv->soc->tx_formats;
+
+	/* Get the addresses and IRQ */
+	regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	spdif_priv->regmap = devm_regmap_init_mmio(&pdev->dev, regs, &fsl_spdif_regmap_config);
+	if (IS_ERR(spdif_priv->regmap)) {
+		dev_err(&pdev->dev, "regmap init failed\n");
+		return PTR_ERR(spdif_priv->regmap);
+	}
+
+	for (i = 0; i < spdif_priv->soc->interrupts; i++) {
+		irq = platform_get_irq(pdev, i);
+		if (irq < 0)
+			return irq;
+
+		ret = devm_request_irq(&pdev->dev, irq, spdif_isr, 0,
+				       dev_name(&pdev->dev), spdif_priv);
+		if (ret) {
+			dev_err(&pdev->dev, "could not claim irq %u\n", irq);
+			return ret;
+		}
+	}
+
+	for (i = 0; i < STC_TXCLK_SRC_MAX; i++) {
+		sprintf(tmp, "rxtx%d", i);
+		spdif_priv->txclk[i] = devm_clk_get(&pdev->dev, tmp);
+		if (IS_ERR(spdif_priv->txclk[i])) {
+			dev_err(&pdev->dev, "no rxtx%d clock in devicetree\n", i);
+			return PTR_ERR(spdif_priv->txclk[i]);
+		}
+	}
+
+	/* Get system clock for rx clock rate calculation */
+	spdif_priv->sysclk = spdif_priv->txclk[5];
+	if (IS_ERR(spdif_priv->sysclk)) {
+		dev_err(&pdev->dev, "no sys clock (rxtx5) in devicetree\n");
+		return PTR_ERR(spdif_priv->sysclk);
+	}
+
+	/* Get core clock for data register access via DMA */
+	spdif_priv->coreclk = devm_clk_get(&pdev->dev, "core");
+	if (IS_ERR(spdif_priv->coreclk)) {
+		dev_err(&pdev->dev, "no core clock in devicetree\n");
+		return PTR_ERR(spdif_priv->coreclk);
+	}
+
+	spdif_priv->spbaclk = devm_clk_get(&pdev->dev, "spba");
+	if (IS_ERR(spdif_priv->spbaclk))
+		dev_warn(&pdev->dev, "no spba clock in devicetree\n");
+
+	/* Select clock source for rx/tx clock */
+	spdif_priv->rxclk = spdif_priv->txclk[1];
+	if (IS_ERR(spdif_priv->rxclk)) {
+		dev_err(&pdev->dev, "no rxtx1 clock in devicetree\n");
+		return PTR_ERR(spdif_priv->rxclk);
+	}
+	spdif_priv->rxclk_src = DEFAULT_RXCLK_SRC;
+
+	fsl_asoc_get_pll_clocks(&pdev->dev, &spdif_priv->pll8k_clk,
+				&spdif_priv->pll11k_clk);
+
+	/* Initial spinlock for control data */
+	ctrl = &spdif_priv->fsl_spdif_control;
+	spin_lock_init(&ctrl->ctl_lock);
+
+	/* Init tx channel status default value */
+	ctrl->ch_status[0] = IEC958_AES0_CON_NOT_COPYRIGHT |
+			     IEC958_AES0_CON_EMPHASIS_5015;
+	ctrl->ch_status[1] = IEC958_AES1_CON_DIGDIGCONV_ID;
+	ctrl->ch_status[2] = 0x00;
+	ctrl->ch_status[3] = IEC958_AES3_CON_FS_44100 |
+			     IEC958_AES3_CON_CLOCK_1000PPM;
+
+	spdif_priv->dpll_locked = false;
+
+	spdif_priv->dma_params_tx.maxburst = spdif_priv->soc->tx_burst;
+	spdif_priv->dma_params_rx.maxburst = spdif_priv->soc->rx_burst;
+	spdif_priv->dma_params_tx.addr = res->start + REG_SPDIF_STL;
+	spdif_priv->dma_params_rx.addr = res->start + REG_SPDIF_SRL;
+
+	/* Register with ASoC */
+	dev_set_drvdata(&pdev->dev, spdif_priv);
+	pm_runtime_enable(&pdev->dev);
+	regcache_cache_only(spdif_priv->regmap, true);
+
+	/*
+	 * Register platform component before registering cpu dai for there
+	 * is not defer probe for platform component in snd_soc_add_pcm_runtime().
+	 */
+	ret = imx_pcm_dma_init(pdev);
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "imx_pcm_dma_init failed\n");
+		goto err_pm_disable;
+	}
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_spdif_component,
+					      &spdif_priv->cpu_dai_drv, 1);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
+		goto err_pm_disable;
+	}
+
+	return ret;
+
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	return ret;
+}
+
+static int fsl_spdif_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int fsl_spdif_runtime_suspend(struct device *dev)
+{
+	struct fsl_spdif_priv *spdif_priv = dev_get_drvdata(dev);
+	int i;
+
+	/* Disable all the interrupts */
+	regmap_update_bits(spdif_priv->regmap, REG_SPDIF_SIE, 0xffffff, 0);
+
+	regmap_read(spdif_priv->regmap, REG_SPDIF_SRPC,
+			&spdif_priv->regcache_srpc);
+	regcache_cache_only(spdif_priv->regmap, true);
+
+	for (i = 0; i < STC_TXCLK_SRC_MAX; i++)
+		clk_disable_unprepare(spdif_priv->txclk[i]);
+
+	if (!IS_ERR(spdif_priv->spbaclk))
+		clk_disable_unprepare(spdif_priv->spbaclk);
+	clk_disable_unprepare(spdif_priv->coreclk);
+
+	return 0;
+}
+
+static int fsl_spdif_runtime_resume(struct device *dev)
+{
+	struct fsl_spdif_priv *spdif_priv = dev_get_drvdata(dev);
+	int ret;
+	int i;
+
+	ret = clk_prepare_enable(spdif_priv->coreclk);
+	if (ret) {
+		dev_err(dev, "failed to enable core clock\n");
+		return ret;
+	}
+
+	if (!IS_ERR(spdif_priv->spbaclk)) {
+		ret = clk_prepare_enable(spdif_priv->spbaclk);
+		if (ret) {
+			dev_err(dev, "failed to enable spba clock\n");
+			goto disable_core_clk;
+		}
+	}
+
+	for (i = 0; i < STC_TXCLK_SRC_MAX; i++) {
+		ret = clk_prepare_enable(spdif_priv->txclk[i]);
+		if (ret)
+			goto disable_tx_clk;
+	}
+
+	regcache_cache_only(spdif_priv->regmap, false);
+	regcache_mark_dirty(spdif_priv->regmap);
+
+	regmap_update_bits(spdif_priv->regmap, REG_SPDIF_SRPC,
+			SRPC_CLKSRC_SEL_MASK | SRPC_GAINSEL_MASK,
+			spdif_priv->regcache_srpc);
+
+	ret = regcache_sync(spdif_priv->regmap);
+	if (ret)
+		goto disable_tx_clk;
+
+	return 0;
+
+disable_tx_clk:
+	for (i--; i >= 0; i--)
+		clk_disable_unprepare(spdif_priv->txclk[i]);
+	if (!IS_ERR(spdif_priv->spbaclk))
+		clk_disable_unprepare(spdif_priv->spbaclk);
+disable_core_clk:
+	clk_disable_unprepare(spdif_priv->coreclk);
+
+	return ret;
+}
+#endif /* CONFIG_PM */
+
+static const struct dev_pm_ops fsl_spdif_pm = {
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+	SET_RUNTIME_PM_OPS(fsl_spdif_runtime_suspend, fsl_spdif_runtime_resume,
+			   NULL)
+};
+
+static const struct of_device_id fsl_spdif_dt_ids[] = {
+	{ .compatible = "fsl,imx35-spdif", .data = &fsl_spdif_imx35, },
+	{ .compatible = "fsl,vf610-spdif", .data = &fsl_spdif_vf610, },
+	{ .compatible = "fsl,imx6sx-spdif", .data = &fsl_spdif_imx6sx, },
+	{ .compatible = "fsl,imx8qm-spdif", .data = &fsl_spdif_imx8qm, },
+	{ .compatible = "fsl,imx8mm-spdif", .data = &fsl_spdif_imx8mm, },
+	{ .compatible = "fsl,imx8ulp-spdif", .data = &fsl_spdif_imx8ulp, },
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_spdif_dt_ids);
+
+static struct platform_driver fsl_spdif_driver = {
+	.driver = {
+		.name = "fsl-spdif-dai",
+		.of_match_table = fsl_spdif_dt_ids,
+		.pm = &fsl_spdif_pm,
+	},
+	.probe = fsl_spdif_probe,
+	.remove = fsl_spdif_remove,
+};
+
+module_platform_driver(fsl_spdif_driver);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Freescale S/PDIF CPU DAI Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:fsl-spdif-dai");
diff --git a/sound/soc/fsl/fsl_spdif.h b/sound/soc/fsl/fsl_spdif.h
new file mode 100644
index 000000000..75b42a692
--- /dev/null
+++ b/sound/soc/fsl/fsl_spdif.h
@@ -0,0 +1,218 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * fsl_spdif.h - ALSA S/PDIF interface for the Freescale i.MX SoC
+ *
+ * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ *
+ * Author: Nicolin Chen <b42378@freescale.com>
+ *
+ * Based on fsl_ssi.h
+ * Author: Timur Tabi <timur@freescale.com>
+ * Copyright 2007-2008 Freescale Semiconductor, Inc.
+ */
+
+#ifndef _FSL_SPDIF_DAI_H
+#define _FSL_SPDIF_DAI_H
+
+/* S/PDIF Register Map */
+#define REG_SPDIF_SCR 			0x0	/* SPDIF Configuration Register */
+#define REG_SPDIF_SRCD		 	0x4	/* CDText Control Register */
+#define REG_SPDIF_SRPC			0x8	/* PhaseConfig Register */
+#define REG_SPDIF_SIE			0xc	/* InterruptEn Register */
+#define REG_SPDIF_SIS			0x10	/* InterruptStat Register */
+#define REG_SPDIF_SIC			0x10	/* InterruptClear Register */
+#define REG_SPDIF_SRL			0x14	/* SPDIFRxLeft Register */
+#define REG_SPDIF_SRR			0x18	/* SPDIFRxRight Register */
+#define REG_SPDIF_SRCSH			0x1c	/* SPDIFRxCChannel_h Register */
+#define REG_SPDIF_SRCSL			0x20	/* SPDIFRxCChannel_l Register */
+#define REG_SPDIF_SRU			0x24	/* UchannelRx Register */
+#define REG_SPDIF_SRQ			0x28	/* QchannelRx Register */
+#define REG_SPDIF_STL			0x2C	/* SPDIFTxLeft Register */
+#define REG_SPDIF_STR			0x30	/* SPDIFTxRight Register */
+#define REG_SPDIF_STCSCH		0x34	/* SPDIFTxCChannelCons_h Register */
+#define REG_SPDIF_STCSCL		0x38	/* SPDIFTxCChannelCons_l Register */
+#define REG_SPDIF_STCSPH		0x3C	/* SPDIFTxCChannel_Prof_h Register */
+#define REG_SPDIF_STCSPL		0x40	/* SPDIFTxCChannel_Prof_l Register */
+#define REG_SPDIF_SRFM			0x44	/* FreqMeas Register */
+#define REG_SPDIF_STC			0x50	/* SPDIFTxClk Register */
+
+#define REG_SPDIF_SRCCA_31_0		0x60	/* SPDIF receive C channel register, bits 31-0 */
+#define REG_SPDIF_SRCCA_63_32		0x64	/* SPDIF receive C channel register, bits 63-32 */
+#define REG_SPDIF_SRCCA_95_64		0x68	/* SPDIF receive C channel register, bits 95-64 */
+#define REG_SPDIF_SRCCA_127_96		0x6C	/* SPDIF receive C channel register, bits 127-96 */
+#define REG_SPDIF_SRCCA_159_128		0x70	/* SPDIF receive C channel register, bits 159-128 */
+#define REG_SPDIF_SRCCA_191_160		0x74	/* SPDIF receive C channel register, bits 191-160 */
+#define REG_SPDIF_STCCA_31_0		0x78	/* SPDIF transmit C channel register, bits 31-0 */
+#define REG_SPDIF_STCCA_63_32		0x7C	/* SPDIF transmit C channel register, bits 63-32 */
+#define REG_SPDIF_STCCA_95_64		0x80	/* SPDIF transmit C channel register, bits 95-64 */
+#define REG_SPDIF_STCCA_127_96		0x84	/* SPDIF transmit C channel register, bits 127-96 */
+#define REG_SPDIF_STCCA_159_128		0x88	/* SPDIF transmit C channel register, bits 159-128 */
+#define REG_SPDIF_STCCA_191_160		0x8C	/* SPDIF transmit C channel register, bits 191-160 */
+
+/* SPDIF Configuration register */
+#define SCR_RXFIFO_CTL_OFFSET		23
+#define SCR_RXFIFO_CTL_MASK		(1 << SCR_RXFIFO_CTL_OFFSET)
+#define SCR_RXFIFO_CTL_ZERO		(1 << SCR_RXFIFO_CTL_OFFSET)
+#define SCR_RXFIFO_OFF_OFFSET		22
+#define SCR_RXFIFO_OFF_MASK		(1 << SCR_RXFIFO_OFF_OFFSET)
+#define SCR_RXFIFO_OFF			(1 << SCR_RXFIFO_OFF_OFFSET)
+#define SCR_RXFIFO_RST_OFFSET		21
+#define SCR_RXFIFO_RST_MASK		(1 << SCR_RXFIFO_RST_OFFSET)
+#define SCR_RXFIFO_RST			(1 << SCR_RXFIFO_RST_OFFSET)
+#define SCR_RXFIFO_FSEL_OFFSET		19
+#define SCR_RXFIFO_FSEL_MASK		(0x3 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_FSEL_IF0		(0x0 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_FSEL_IF4		(0x1 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_FSEL_IF8		(0x2 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_FSEL_IF12		(0x3 << SCR_RXFIFO_FSEL_OFFSET)
+#define SCR_RXFIFO_AUTOSYNC_OFFSET	18
+#define SCR_RXFIFO_AUTOSYNC_MASK	(1 << SCR_RXFIFO_AUTOSYNC_OFFSET)
+#define SCR_RXFIFO_AUTOSYNC		(1 << SCR_RXFIFO_AUTOSYNC_OFFSET)
+#define SCR_TXFIFO_AUTOSYNC_OFFSET	17
+#define SCR_TXFIFO_AUTOSYNC_MASK	(1 << SCR_TXFIFO_AUTOSYNC_OFFSET)
+#define SCR_TXFIFO_AUTOSYNC		(1 << SCR_TXFIFO_AUTOSYNC_OFFSET)
+#define SCR_TXFIFO_FSEL_OFFSET		15
+#define SCR_TXFIFO_FSEL_MASK		(0x3 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_TXFIFO_FSEL_IF0		(0x0 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_TXFIFO_FSEL_IF4		(0x1 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_TXFIFO_FSEL_IF8		(0x2 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_TXFIFO_FSEL_IF12		(0x3 << SCR_TXFIFO_FSEL_OFFSET)
+#define SCR_RAW_CAPTURE_MODE		BIT(14)
+#define SCR_LOW_POWER			(1 << 13)
+#define SCR_SOFT_RESET			(1 << 12)
+#define SCR_TXFIFO_CTRL_OFFSET		10
+#define SCR_TXFIFO_CTRL_MASK		(0x3 << SCR_TXFIFO_CTRL_OFFSET)
+#define SCR_TXFIFO_CTRL_ZERO		(0x0 << SCR_TXFIFO_CTRL_OFFSET)
+#define SCR_TXFIFO_CTRL_NORMAL		(0x1 << SCR_TXFIFO_CTRL_OFFSET)
+#define SCR_TXFIFO_CTRL_ONESAMPLE	(0x2 << SCR_TXFIFO_CTRL_OFFSET)
+#define SCR_DMA_RX_EN_OFFSET		9
+#define SCR_DMA_RX_EN_MASK		(1 << SCR_DMA_RX_EN_OFFSET)
+#define SCR_DMA_RX_EN			(1 << SCR_DMA_RX_EN_OFFSET)
+#define SCR_DMA_TX_EN_OFFSET		8
+#define SCR_DMA_TX_EN_MASK		(1 << SCR_DMA_TX_EN_OFFSET)
+#define SCR_DMA_TX_EN			(1 << SCR_DMA_TX_EN_OFFSET)
+#define SCR_VAL_OFFSET			5
+#define SCR_VAL_MASK			(1 << SCR_VAL_OFFSET)
+#define SCR_VAL_CLEAR			(1 << SCR_VAL_OFFSET)
+#define SCR_TXSEL_OFFSET		2
+#define SCR_TXSEL_MASK			(0x7 << SCR_TXSEL_OFFSET)
+#define SCR_TXSEL_OFF			(0 << SCR_TXSEL_OFFSET)
+#define SCR_TXSEL_RX			(1 << SCR_TXSEL_OFFSET)
+#define SCR_TXSEL_NORMAL		(0x5 << SCR_TXSEL_OFFSET)
+#define SCR_USRC_SEL_OFFSET		0x0
+#define SCR_USRC_SEL_MASK		(0x3 << SCR_USRC_SEL_OFFSET)
+#define SCR_USRC_SEL_NONE		(0x0 << SCR_USRC_SEL_OFFSET)
+#define SCR_USRC_SEL_RECV		(0x1 << SCR_USRC_SEL_OFFSET)
+#define SCR_USRC_SEL_CHIP		(0x3 << SCR_USRC_SEL_OFFSET)
+
+#define SCR_DMA_xX_EN(tx)		(tx ? SCR_DMA_TX_EN : SCR_DMA_RX_EN)
+
+/* SPDIF CDText control */
+#define SRCD_CD_USER_OFFSET		1
+#define SRCD_CD_USER			(1 << SRCD_CD_USER_OFFSET)
+
+/* SPDIF Phase Configuration register */
+#define SRPC_DPLL_LOCKED		(1 << 6)
+#define SRPC_CLKSRC_SEL_OFFSET		7
+#define SRPC_CLKSRC_SEL_MASK		(0xf << SRPC_CLKSRC_SEL_OFFSET)
+#define SRPC_CLKSRC_SEL_SET(x)		((x << SRPC_CLKSRC_SEL_OFFSET) & SRPC_CLKSRC_SEL_MASK)
+#define SRPC_CLKSRC_SEL_LOCKED_OFFSET1	5
+#define SRPC_CLKSRC_SEL_LOCKED_OFFSET2	2
+#define SRPC_GAINSEL_OFFSET		3
+#define SRPC_GAINSEL_MASK		(0x7 << SRPC_GAINSEL_OFFSET)
+#define SRPC_GAINSEL_SET(x)		((x << SRPC_GAINSEL_OFFSET) & SRPC_GAINSEL_MASK)
+
+#define SRPC_CLKSRC_MAX			16
+
+enum spdif_gainsel {
+	GAINSEL_MULTI_24 = 0,
+	GAINSEL_MULTI_16,
+	GAINSEL_MULTI_12,
+	GAINSEL_MULTI_8,
+	GAINSEL_MULTI_6,
+	GAINSEL_MULTI_4,
+	GAINSEL_MULTI_3,
+};
+#define GAINSEL_MULTI_MAX		(GAINSEL_MULTI_3 + 1)
+#define SPDIF_DEFAULT_GAINSEL		GAINSEL_MULTI_8
+
+/* SPDIF interrupt mask define */
+#define INT_DPLL_LOCKED			(1 << 20)
+#define INT_TXFIFO_UNOV			(1 << 19)
+#define INT_TXFIFO_RESYNC		(1 << 18)
+#define INT_CNEW			(1 << 17)
+#define INT_VAL_NOGOOD			(1 << 16)
+#define INT_SYM_ERR			(1 << 15)
+#define INT_BIT_ERR			(1 << 14)
+#define INT_URX_FUL			(1 << 10)
+#define INT_URX_OV			(1 << 9)
+#define INT_QRX_FUL			(1 << 8)
+#define INT_QRX_OV			(1 << 7)
+#define INT_UQ_SYNC			(1 << 6)
+#define INT_UQ_ERR			(1 << 5)
+#define INT_RXFIFO_UNOV			(1 << 4)
+#define INT_RXFIFO_RESYNC		(1 << 3)
+#define INT_LOSS_LOCK			(1 << 2)
+#define INT_TX_EM			(1 << 1)
+#define INT_RXFIFO_FUL			(1 << 0)
+
+/* SPDIF Clock register */
+#define STC_SYSCLK_DF_OFFSET		11
+#define STC_SYSCLK_DF_MASK		(0x1ff << STC_SYSCLK_DF_OFFSET)
+#define STC_SYSCLK_DF(x)		((((x) - 1) << STC_SYSCLK_DF_OFFSET) & STC_SYSCLK_DF_MASK)
+#define STC_TXCLK_SRC_OFFSET		8
+#define STC_TXCLK_SRC_MASK		(0x7 << STC_TXCLK_SRC_OFFSET)
+#define STC_TXCLK_SRC_SET(x)		((x << STC_TXCLK_SRC_OFFSET) & STC_TXCLK_SRC_MASK)
+#define STC_TXCLK_ALL_EN_OFFSET		7
+#define STC_TXCLK_ALL_EN_MASK		(1 << STC_TXCLK_ALL_EN_OFFSET)
+#define STC_TXCLK_ALL_EN		(1 << STC_TXCLK_ALL_EN_OFFSET)
+#define STC_TXCLK_DF_OFFSET		0
+#define STC_TXCLK_DF_MASK		(0x7f << STC_TXCLK_DF_OFFSET)
+#define STC_TXCLK_DF(x)		((((x) - 1) << STC_TXCLK_DF_OFFSET) & STC_TXCLK_DF_MASK)
+#define STC_TXCLK_SRC_MAX		8
+
+#define STC_TXCLK_SPDIF_ROOT		1
+
+/* SPDIF tx rate */
+enum spdif_txrate {
+	SPDIF_TXRATE_32000 = 0,
+	SPDIF_TXRATE_44100,
+	SPDIF_TXRATE_48000,
+	SPDIF_TXRATE_88200,
+	SPDIF_TXRATE_96000,
+	SPDIF_TXRATE_176400,
+	SPDIF_TXRATE_192000,
+};
+#define SPDIF_TXRATE_MAX		(SPDIF_TXRATE_192000 + 1)
+
+
+#define SPDIF_CSTATUS_BYTE		6
+#define SPDIF_UBITS_SIZE		96
+#define SPDIF_QSUB_SIZE			(SPDIF_UBITS_SIZE / 8)
+
+
+#define FSL_SPDIF_RATES_PLAYBACK	(SNDRV_PCM_RATE_32000 |	\
+					 SNDRV_PCM_RATE_44100 |	\
+					 SNDRV_PCM_RATE_48000 |	\
+					 SNDRV_PCM_RATE_88200 | \
+					 SNDRV_PCM_RATE_96000 |	\
+					 SNDRV_PCM_RATE_176400 | \
+					 SNDRV_PCM_RATE_192000)
+
+#define FSL_SPDIF_RATES_CAPTURE		(SNDRV_PCM_RATE_16000 | \
+					 SNDRV_PCM_RATE_32000 |	\
+					 SNDRV_PCM_RATE_44100 | \
+					 SNDRV_PCM_RATE_48000 |	\
+					 SNDRV_PCM_RATE_88200 | \
+					 SNDRV_PCM_RATE_64000 | \
+					 SNDRV_PCM_RATE_96000 | \
+					 SNDRV_PCM_RATE_176400 | \
+					 SNDRV_PCM_RATE_192000)
+
+#define FSL_SPDIF_FORMATS_PLAYBACK	(SNDRV_PCM_FMTBIT_S16_LE | \
+					 SNDRV_PCM_FMTBIT_S20_3LE | \
+					 SNDRV_PCM_FMTBIT_S24_LE)
+
+#define FSL_SPDIF_FORMATS_CAPTURE	(SNDRV_PCM_FMTBIT_S24_LE)
+
+#endif /* _FSL_SPDIF_DAI_H */
diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
new file mode 100644
index 000000000..6af00b62a
--- /dev/null
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -0,0 +1,1748 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale SSI ALSA SoC Digital Audio Interface (DAI) driver
+//
+// Author: Timur Tabi <timur@freescale.com>
+//
+// Copyright 2007-2010 Freescale Semiconductor, Inc.
+//
+// Some notes why imx-pcm-fiq is used instead of DMA on some boards:
+//
+// The i.MX SSI core has some nasty limitations in AC97 mode. While most
+// sane processor vendors have a FIFO per AC97 slot, the i.MX has only
+// one FIFO which combines all valid receive slots. We cannot even select
+// which slots we want to receive. The WM9712 with which this driver
+// was developed with always sends GPIO status data in slot 12 which
+// we receive in our (PCM-) data stream. The only chance we have is to
+// manually skip this data in the FIQ handler. With sampling rates different
+// from 48000Hz not every frame has valid receive data, so the ratio
+// between pcm data and GPIO status data changes. Our FIQ handler is not
+// able to handle this, hence this driver only works with 48000Hz sampling
+// rate.
+// Reading and writing AC97 registers is another challenge. The core
+// provides us status bits when the read register is updated with *another*
+// value. When we read the same register two times (and the register still
+// contains the same value) these status bits are not set. We work
+// around this by not polling these bits but only wait a fixed delay.
+
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/ctype.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/dma/imx-dma.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+#include <sound/dmaengine_pcm.h>
+
+#include "fsl_ssi.h"
+#include "imx-pcm.h"
+
+/* Define RX and TX to index ssi->regvals array; Can be 0 or 1 only */
+#define RX 0
+#define TX 1
+
+/**
+ * FSLSSI_I2S_FORMATS: audio formats supported by the SSI
+ *
+ * The SSI has a limitation in that the samples must be in the same byte
+ * order as the host CPU.  This is because when multiple bytes are written
+ * to the STX register, the bytes and bits must be written in the same
+ * order.  The STX is a shift register, so all the bits need to be aligned
+ * (bit-endianness must match byte-endianness).  Processors typically write
+ * the bits within a byte in the same order that the bytes of a word are
+ * written in.  So if the host CPU is big-endian, then only big-endian
+ * samples will be written to STX properly.
+ */
+#ifdef __BIG_ENDIAN
+#define FSLSSI_I2S_FORMATS \
+	(SNDRV_PCM_FMTBIT_S8 | \
+	 SNDRV_PCM_FMTBIT_S16_BE | \
+	 SNDRV_PCM_FMTBIT_S18_3BE | \
+	 SNDRV_PCM_FMTBIT_S20_3BE | \
+	 SNDRV_PCM_FMTBIT_S24_3BE | \
+	 SNDRV_PCM_FMTBIT_S24_BE)
+#else
+#define FSLSSI_I2S_FORMATS \
+	(SNDRV_PCM_FMTBIT_S8 | \
+	 SNDRV_PCM_FMTBIT_S16_LE | \
+	 SNDRV_PCM_FMTBIT_S18_3LE | \
+	 SNDRV_PCM_FMTBIT_S20_3LE | \
+	 SNDRV_PCM_FMTBIT_S24_3LE | \
+	 SNDRV_PCM_FMTBIT_S24_LE)
+#endif
+
+/*
+ * In AC97 mode, TXDIR bit is forced to 0 and TFDIR bit is forced to 1:
+ *  - SSI inputs external bit clock and outputs frame sync clock -- CBM_CFS
+ *  - Also have NB_NF to mark these two clocks will not be inverted
+ */
+#define FSLSSI_AC97_DAIFMT \
+	(SND_SOC_DAIFMT_AC97 | \
+	 SND_SOC_DAIFMT_BC_FP | \
+	 SND_SOC_DAIFMT_NB_NF)
+
+#define FSLSSI_SIER_DBG_RX_FLAGS \
+	(SSI_SIER_RFF0_EN | \
+	 SSI_SIER_RLS_EN | \
+	 SSI_SIER_RFS_EN | \
+	 SSI_SIER_ROE0_EN | \
+	 SSI_SIER_RFRC_EN)
+#define FSLSSI_SIER_DBG_TX_FLAGS \
+	(SSI_SIER_TFE0_EN | \
+	 SSI_SIER_TLS_EN | \
+	 SSI_SIER_TFS_EN | \
+	 SSI_SIER_TUE0_EN | \
+	 SSI_SIER_TFRC_EN)
+
+enum fsl_ssi_type {
+	FSL_SSI_MCP8610,
+	FSL_SSI_MX21,
+	FSL_SSI_MX35,
+	FSL_SSI_MX51,
+};
+
+struct fsl_ssi_regvals {
+	u32 sier;
+	u32 srcr;
+	u32 stcr;
+	u32 scr;
+};
+
+static bool fsl_ssi_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_SSI_SACCEN:
+	case REG_SSI_SACCDIS:
+		return false;
+	default:
+		return true;
+	}
+}
+
+static bool fsl_ssi_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_SSI_STX0:
+	case REG_SSI_STX1:
+	case REG_SSI_SRX0:
+	case REG_SSI_SRX1:
+	case REG_SSI_SISR:
+	case REG_SSI_SFCSR:
+	case REG_SSI_SACNT:
+	case REG_SSI_SACADD:
+	case REG_SSI_SACDAT:
+	case REG_SSI_SATAG:
+	case REG_SSI_SACCST:
+	case REG_SSI_SOR:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_ssi_precious_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_SSI_SRX0:
+	case REG_SSI_SRX1:
+	case REG_SSI_SISR:
+	case REG_SSI_SACADD:
+	case REG_SSI_SACDAT:
+	case REG_SSI_SATAG:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_ssi_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case REG_SSI_SRX0:
+	case REG_SSI_SRX1:
+	case REG_SSI_SACCST:
+		return false;
+	default:
+		return true;
+	}
+}
+
+static const struct regmap_config fsl_ssi_regconfig = {
+	.max_register = REG_SSI_SACCDIS,
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = 4,
+	.val_format_endian = REGMAP_ENDIAN_NATIVE,
+	.num_reg_defaults_raw = REG_SSI_SACCDIS / sizeof(uint32_t) + 1,
+	.readable_reg = fsl_ssi_readable_reg,
+	.volatile_reg = fsl_ssi_volatile_reg,
+	.precious_reg = fsl_ssi_precious_reg,
+	.writeable_reg = fsl_ssi_writeable_reg,
+	.cache_type = REGCACHE_FLAT,
+};
+
+struct fsl_ssi_soc_data {
+	bool imx;
+	bool imx21regs; /* imx21-class SSI - no SACC{ST,EN,DIS} regs */
+	bool offline_config;
+	u32 sisr_write_mask;
+};
+
+/**
+ * struct fsl_ssi - per-SSI private data
+ * @regs: Pointer to the regmap registers
+ * @irq: IRQ of this SSI
+ * @cpu_dai_drv: CPU DAI driver for this device
+ * @dai_fmt: DAI configuration this device is currently used with
+ * @streams: Mask of current active streams: BIT(TX) and BIT(RX)
+ * @i2s_net: I2S and Network mode configurations of SCR register
+ *           (this is the initial settings based on the DAI format)
+ * @synchronous: Use synchronous mode - both of TX and RX use STCK and SFCK
+ * @use_dma: DMA is used or FIQ with stream filter
+ * @use_dual_fifo: DMA with support for dual FIFO mode
+ * @use_dyna_fifo: DMA with support for multi FIFO script
+ * @has_ipg_clk_name: If "ipg" is in the clock name list of device tree
+ * @fifo_depth: Depth of the SSI FIFOs
+ * @slot_width: Width of each DAI slot
+ * @slots: Number of slots
+ * @regvals: Specific RX/TX register settings
+ * @clk: Clock source to access register
+ * @baudclk: Clock source to generate bit and frame-sync clocks
+ * @baudclk_streams: Active streams that are using baudclk
+ * @regcache_sfcsr: Cache sfcsr register value during suspend and resume
+ * @regcache_sacnt: Cache sacnt register value during suspend and resume
+ * @dma_params_tx: DMA transmit parameters
+ * @dma_params_rx: DMA receive parameters
+ * @ssi_phys: physical address of the SSI registers
+ * @fiq_params: FIQ stream filtering parameters
+ * @card_pdev: Platform_device pointer to register a sound card for PowerPC or
+ *             to register a CODEC platform device for AC97
+ * @card_name: Platform_device name to register a sound card for PowerPC or
+ *             to register a CODEC platform device for AC97
+ * @card_idx: The index of SSI to register a sound card for PowerPC or
+ *            to register a CODEC platform device for AC97
+ * @dbg_stats: Debugging statistics
+ * @soc: SoC specific data
+ * @dev: Pointer to &pdev->dev
+ * @fifo_watermark: The FIFO watermark setting. Notifies DMA when there are
+ *                  @fifo_watermark or fewer words in TX fifo or
+ *                  @fifo_watermark or more empty words in RX fifo.
+ * @dma_maxburst: Max number of words to transfer in one go. So far,
+ *                this is always the same as fifo_watermark.
+ * @ac97_reg_lock: Mutex lock to serialize AC97 register access operations
+ * @audio_config: configure for dma multi fifo script
+ */
+struct fsl_ssi {
+	struct regmap *regs;
+	int irq;
+	struct snd_soc_dai_driver cpu_dai_drv;
+
+	unsigned int dai_fmt;
+	u8 streams;
+	u8 i2s_net;
+	bool synchronous;
+	bool use_dma;
+	bool use_dual_fifo;
+	bool use_dyna_fifo;
+	bool has_ipg_clk_name;
+	unsigned int fifo_depth;
+	unsigned int slot_width;
+	unsigned int slots;
+	struct fsl_ssi_regvals regvals[2];
+
+	struct clk *clk;
+	struct clk *baudclk;
+	unsigned int baudclk_streams;
+
+	u32 regcache_sfcsr;
+	u32 regcache_sacnt;
+
+	struct snd_dmaengine_dai_dma_data dma_params_tx;
+	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	dma_addr_t ssi_phys;
+
+	struct imx_pcm_fiq_params fiq_params;
+
+	struct platform_device *card_pdev;
+	char card_name[32];
+	u32 card_idx;
+
+	struct fsl_ssi_dbg dbg_stats;
+
+	const struct fsl_ssi_soc_data *soc;
+	struct device *dev;
+
+	u32 fifo_watermark;
+	u32 dma_maxburst;
+
+	struct mutex ac97_reg_lock;
+	struct sdma_peripheral_config audio_config[2];
+};
+
+/*
+ * SoC specific data
+ *
+ * Notes:
+ * 1) SSI in earlier SoCS has critical bits in control registers that
+ *    cannot be changed after SSI starts running -- a software reset
+ *    (set SSIEN to 0) is required to change their values. So adding
+ *    an offline_config flag for these SoCs.
+ * 2) SDMA is available since imx35. However, imx35 does not support
+ *    DMA bits changing when SSI is running, so set offline_config.
+ * 3) imx51 and later versions support register configurations when
+ *    SSI is running (SSIEN); For these versions, DMA needs to be
+ *    configured before SSI sends DMA request to avoid an undefined
+ *    DMA request on the SDMA side.
+ */
+
+static struct fsl_ssi_soc_data fsl_ssi_mpc8610 = {
+	.imx = false,
+	.offline_config = true,
+	.sisr_write_mask = SSI_SISR_RFRC | SSI_SISR_TFRC |
+			   SSI_SISR_ROE0 | SSI_SISR_ROE1 |
+			   SSI_SISR_TUE0 | SSI_SISR_TUE1,
+};
+
+static struct fsl_ssi_soc_data fsl_ssi_imx21 = {
+	.imx = true,
+	.imx21regs = true,
+	.offline_config = true,
+	.sisr_write_mask = 0,
+};
+
+static struct fsl_ssi_soc_data fsl_ssi_imx35 = {
+	.imx = true,
+	.offline_config = true,
+	.sisr_write_mask = SSI_SISR_RFRC | SSI_SISR_TFRC |
+			   SSI_SISR_ROE0 | SSI_SISR_ROE1 |
+			   SSI_SISR_TUE0 | SSI_SISR_TUE1,
+};
+
+static struct fsl_ssi_soc_data fsl_ssi_imx51 = {
+	.imx = true,
+	.offline_config = false,
+	.sisr_write_mask = SSI_SISR_ROE0 | SSI_SISR_ROE1 |
+			   SSI_SISR_TUE0 | SSI_SISR_TUE1,
+};
+
+static const struct of_device_id fsl_ssi_ids[] = {
+	{ .compatible = "fsl,mpc8610-ssi", .data = &fsl_ssi_mpc8610 },
+	{ .compatible = "fsl,imx51-ssi", .data = &fsl_ssi_imx51 },
+	{ .compatible = "fsl,imx35-ssi", .data = &fsl_ssi_imx35 },
+	{ .compatible = "fsl,imx21-ssi", .data = &fsl_ssi_imx21 },
+	{}
+};
+MODULE_DEVICE_TABLE(of, fsl_ssi_ids);
+
+static bool fsl_ssi_is_ac97(struct fsl_ssi *ssi)
+{
+	return (ssi->dai_fmt & SND_SOC_DAIFMT_FORMAT_MASK) ==
+		SND_SOC_DAIFMT_AC97;
+}
+
+static bool fsl_ssi_is_i2s_clock_provider(struct fsl_ssi *ssi)
+{
+	return (ssi->dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) ==
+		SND_SOC_DAIFMT_BP_FP;
+}
+
+static bool fsl_ssi_is_i2s_bc_fp(struct fsl_ssi *ssi)
+{
+	return (ssi->dai_fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) ==
+		SND_SOC_DAIFMT_BC_FP;
+}
+
+/**
+ * fsl_ssi_isr - Interrupt handler to gather states
+ * @irq: irq number
+ * @dev_id: context
+ */
+static irqreturn_t fsl_ssi_isr(int irq, void *dev_id)
+{
+	struct fsl_ssi *ssi = dev_id;
+	struct regmap *regs = ssi->regs;
+	u32 sisr, sisr2;
+
+	regmap_read(regs, REG_SSI_SISR, &sisr);
+
+	sisr2 = sisr & ssi->soc->sisr_write_mask;
+	/* Clear the bits that we set */
+	if (sisr2)
+		regmap_write(regs, REG_SSI_SISR, sisr2);
+
+	fsl_ssi_dbg_isr(&ssi->dbg_stats, sisr);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * fsl_ssi_config_enable - Set SCR, SIER, STCR and SRCR registers with
+ * cached values in regvals
+ * @ssi: SSI context
+ * @tx: direction
+ *
+ * Notes:
+ * 1) For offline_config SoCs, enable all necessary bits of both streams
+ *    when 1st stream starts, even if the opposite stream will not start
+ * 2) It also clears FIFO before setting regvals; SOR is safe to set online
+ */
+static void fsl_ssi_config_enable(struct fsl_ssi *ssi, bool tx)
+{
+	struct fsl_ssi_regvals *vals = ssi->regvals;
+	int dir = tx ? TX : RX;
+	u32 sier, srcr, stcr;
+
+	/* Clear dirty data in the FIFO; It also prevents channel slipping */
+	regmap_update_bits(ssi->regs, REG_SSI_SOR,
+			   SSI_SOR_xX_CLR(tx), SSI_SOR_xX_CLR(tx));
+
+	/*
+	 * On offline_config SoCs, SxCR and SIER are already configured when
+	 * the previous stream started. So skip all SxCR and SIER settings
+	 * to prevent online reconfigurations, then jump to set SCR directly
+	 */
+	if (ssi->soc->offline_config && ssi->streams)
+		goto enable_scr;
+
+	if (ssi->soc->offline_config) {
+		/*
+		 * Online reconfiguration not supported, so enable all bits for
+		 * both streams at once to avoid necessity of reconfigurations
+		 */
+		srcr = vals[RX].srcr | vals[TX].srcr;
+		stcr = vals[RX].stcr | vals[TX].stcr;
+		sier = vals[RX].sier | vals[TX].sier;
+	} else {
+		/* Otherwise, only set bits for the current stream */
+		srcr = vals[dir].srcr;
+		stcr = vals[dir].stcr;
+		sier = vals[dir].sier;
+	}
+
+	/* Configure SRCR, STCR and SIER at once */
+	regmap_update_bits(ssi->regs, REG_SSI_SRCR, srcr, srcr);
+	regmap_update_bits(ssi->regs, REG_SSI_STCR, stcr, stcr);
+	regmap_update_bits(ssi->regs, REG_SSI_SIER, sier, sier);
+
+enable_scr:
+	/*
+	 * Start DMA before setting TE to avoid FIFO underrun
+	 * which may cause a channel slip or a channel swap
+	 *
+	 * TODO: FIQ cases might also need this upon testing
+	 */
+	if (ssi->use_dma && tx) {
+		int try = 100;
+		u32 sfcsr;
+
+		/* Enable SSI first to send TX DMA request */
+		regmap_update_bits(ssi->regs, REG_SSI_SCR,
+				   SSI_SCR_SSIEN, SSI_SCR_SSIEN);
+
+		/* Busy wait until TX FIFO not empty -- DMA working */
+		do {
+			regmap_read(ssi->regs, REG_SSI_SFCSR, &sfcsr);
+			if (SSI_SFCSR_TFCNT0(sfcsr))
+				break;
+		} while (--try);
+
+		/* FIFO still empty -- something might be wrong */
+		if (!SSI_SFCSR_TFCNT0(sfcsr))
+			dev_warn(ssi->dev, "Timeout waiting TX FIFO filling\n");
+	}
+	/* Enable all remaining bits in SCR */
+	regmap_update_bits(ssi->regs, REG_SSI_SCR,
+			   vals[dir].scr, vals[dir].scr);
+
+	/* Log the enabled stream to the mask */
+	ssi->streams |= BIT(dir);
+}
+
+/*
+ * Exclude bits that are used by the opposite stream
+ *
+ * When both streams are active, disabling some bits for the current stream
+ * might break the other stream if these bits are used by it.
+ *
+ * @vals : regvals of the current stream
+ * @avals: regvals of the opposite stream
+ * @aactive: active state of the opposite stream
+ *
+ *  1) XOR vals and avals to get the differences if the other stream is active;
+ *     Otherwise, return current vals if the other stream is not active
+ *  2) AND the result of 1) with the current vals
+ */
+#define _ssi_xor_shared_bits(vals, avals, aactive) \
+	((vals) ^ ((avals) * (aactive)))
+
+#define ssi_excl_shared_bits(vals, avals, aactive) \
+	((vals) & _ssi_xor_shared_bits(vals, avals, aactive))
+
+/**
+ * fsl_ssi_config_disable - Unset SCR, SIER, STCR and SRCR registers
+ * with cached values in regvals
+ * @ssi: SSI context
+ * @tx: direction
+ *
+ * Notes:
+ * 1) For offline_config SoCs, to avoid online reconfigurations, disable all
+ *    bits of both streams at once when the last stream is abort to end
+ * 2) It also clears FIFO after unsetting regvals; SOR is safe to set online
+ */
+static void fsl_ssi_config_disable(struct fsl_ssi *ssi, bool tx)
+{
+	struct fsl_ssi_regvals *vals, *avals;
+	u32 sier, srcr, stcr, scr;
+	int adir = tx ? RX : TX;
+	int dir = tx ? TX : RX;
+	bool aactive;
+
+	/* Check if the opposite stream is active */
+	aactive = ssi->streams & BIT(adir);
+
+	vals = &ssi->regvals[dir];
+
+	/* Get regvals of the opposite stream to keep opposite stream safe */
+	avals = &ssi->regvals[adir];
+
+	/*
+	 * To keep the other stream safe, exclude shared bits between
+	 * both streams, and get safe bits to disable current stream
+	 */
+	scr = ssi_excl_shared_bits(vals->scr, avals->scr, aactive);
+
+	/* Disable safe bits of SCR register for the current stream */
+	regmap_update_bits(ssi->regs, REG_SSI_SCR, scr, 0);
+
+	/* Log the disabled stream to the mask */
+	ssi->streams &= ~BIT(dir);
+
+	/*
+	 * On offline_config SoCs, if the other stream is active, skip
+	 * SxCR and SIER settings to prevent online reconfigurations
+	 */
+	if (ssi->soc->offline_config && aactive)
+		goto fifo_clear;
+
+	if (ssi->soc->offline_config) {
+		/* Now there is only current stream active, disable all bits */
+		srcr = vals->srcr | avals->srcr;
+		stcr = vals->stcr | avals->stcr;
+		sier = vals->sier | avals->sier;
+	} else {
+		/*
+		 * To keep the other stream safe, exclude shared bits between
+		 * both streams, and get safe bits to disable current stream
+		 */
+		sier = ssi_excl_shared_bits(vals->sier, avals->sier, aactive);
+		srcr = ssi_excl_shared_bits(vals->srcr, avals->srcr, aactive);
+		stcr = ssi_excl_shared_bits(vals->stcr, avals->stcr, aactive);
+	}
+
+	/* Clear configurations of SRCR, STCR and SIER at once */
+	regmap_update_bits(ssi->regs, REG_SSI_SRCR, srcr, 0);
+	regmap_update_bits(ssi->regs, REG_SSI_STCR, stcr, 0);
+	regmap_update_bits(ssi->regs, REG_SSI_SIER, sier, 0);
+
+fifo_clear:
+	/* Clear remaining data in the FIFO */
+	regmap_update_bits(ssi->regs, REG_SSI_SOR,
+			   SSI_SOR_xX_CLR(tx), SSI_SOR_xX_CLR(tx));
+}
+
+static void fsl_ssi_tx_ac97_saccst_setup(struct fsl_ssi *ssi)
+{
+	struct regmap *regs = ssi->regs;
+
+	/* no SACC{ST,EN,DIS} regs on imx21-class SSI */
+	if (!ssi->soc->imx21regs) {
+		/* Disable all channel slots */
+		regmap_write(regs, REG_SSI_SACCDIS, 0xff);
+		/* Enable slots 3 & 4 -- PCM Playback Left & Right channels */
+		regmap_write(regs, REG_SSI_SACCEN, 0x300);
+	}
+}
+
+/**
+ * fsl_ssi_setup_regvals - Cache critical bits of SIER, SRCR, STCR and
+ * SCR to later set them safely
+ * @ssi: SSI context
+ */
+static void fsl_ssi_setup_regvals(struct fsl_ssi *ssi)
+{
+	struct fsl_ssi_regvals *vals = ssi->regvals;
+
+	vals[RX].sier = SSI_SIER_RFF0_EN | FSLSSI_SIER_DBG_RX_FLAGS;
+	vals[RX].srcr = SSI_SRCR_RFEN0;
+	vals[RX].scr = SSI_SCR_SSIEN | SSI_SCR_RE;
+	vals[TX].sier = SSI_SIER_TFE0_EN | FSLSSI_SIER_DBG_TX_FLAGS;
+	vals[TX].stcr = SSI_STCR_TFEN0;
+	vals[TX].scr = SSI_SCR_SSIEN | SSI_SCR_TE;
+
+	/* AC97 has already enabled SSIEN, RE and TE, so ignore them */
+	if (fsl_ssi_is_ac97(ssi))
+		vals[RX].scr = vals[TX].scr = 0;
+
+	if (ssi->use_dual_fifo) {
+		vals[RX].srcr |= SSI_SRCR_RFEN1;
+		vals[TX].stcr |= SSI_STCR_TFEN1;
+	}
+
+	if (ssi->use_dma) {
+		vals[RX].sier |= SSI_SIER_RDMAE;
+		vals[TX].sier |= SSI_SIER_TDMAE;
+	} else {
+		vals[RX].sier |= SSI_SIER_RIE;
+		vals[TX].sier |= SSI_SIER_TIE;
+	}
+}
+
+static void fsl_ssi_setup_ac97(struct fsl_ssi *ssi)
+{
+	struct regmap *regs = ssi->regs;
+
+	/* Setup the clock control register */
+	regmap_write(regs, REG_SSI_STCCR, SSI_SxCCR_WL(17) | SSI_SxCCR_DC(13));
+	regmap_write(regs, REG_SSI_SRCCR, SSI_SxCCR_WL(17) | SSI_SxCCR_DC(13));
+
+	/* Enable AC97 mode and startup the SSI */
+	regmap_write(regs, REG_SSI_SACNT, SSI_SACNT_AC97EN | SSI_SACNT_FV);
+
+	/* AC97 has to communicate with codec before starting a stream */
+	regmap_update_bits(regs, REG_SSI_SCR,
+			   SSI_SCR_SSIEN | SSI_SCR_TE | SSI_SCR_RE,
+			   SSI_SCR_SSIEN | SSI_SCR_TE | SSI_SCR_RE);
+
+	regmap_write(regs, REG_SSI_SOR, SSI_SOR_WAIT(3));
+}
+
+static int fsl_ssi_startup(struct snd_pcm_substream *substream,
+			   struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_ssi *ssi = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	int ret;
+
+	ret = clk_prepare_enable(ssi->clk);
+	if (ret)
+		return ret;
+
+	/*
+	 * When using dual fifo mode, it is safer to ensure an even period
+	 * size. If appearing to an odd number while DMA always starts its
+	 * task from fifo0, fifo1 would be neglected at the end of each
+	 * period. But SSI would still access fifo1 with an invalid data.
+	 */
+	if (ssi->use_dual_fifo || ssi->use_dyna_fifo)
+		snd_pcm_hw_constraint_step(substream->runtime, 0,
+					   SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 2);
+
+	return 0;
+}
+
+static void fsl_ssi_shutdown(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_ssi *ssi = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+
+	clk_disable_unprepare(ssi->clk);
+}
+
+/**
+ * fsl_ssi_set_bclk - Configure Digital Audio Interface bit clock
+ * @substream: ASoC substream
+ * @dai: pointer to DAI
+ * @hw_params: pointers to hw_params
+ *
+ * Notes: This function can be only called when using SSI as DAI master
+ *
+ * Quick instruction for parameters:
+ * freq: Output BCLK frequency = samplerate * slots * slot_width
+ *       (In 2-channel I2S Master mode, slot_width is fixed 32)
+ */
+static int fsl_ssi_set_bclk(struct snd_pcm_substream *substream,
+			    struct snd_soc_dai *dai,
+			    struct snd_pcm_hw_params *hw_params)
+{
+	bool tx2, tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	struct fsl_ssi *ssi = snd_soc_dai_get_drvdata(dai);
+	struct regmap *regs = ssi->regs;
+	u32 pm = 999, div2, psr, stccr, mask, afreq, factor, i;
+	unsigned long clkrate, baudrate, tmprate;
+	unsigned int channels = params_channels(hw_params);
+	unsigned int slot_width = params_width(hw_params);
+	unsigned int slots = 2;
+	u64 sub, savesub = 100000;
+	unsigned int freq;
+	bool baudclk_is_used;
+	int ret;
+
+	/* Override slots and slot_width if being specifically set... */
+	if (ssi->slots)
+		slots = ssi->slots;
+	if (ssi->slot_width)
+		slot_width = ssi->slot_width;
+
+	/* ...but force 32 bits for stereo audio using I2S Master Mode */
+	if (channels == 2 &&
+	    (ssi->i2s_net & SSI_SCR_I2S_MODE_MASK) == SSI_SCR_I2S_MODE_MASTER)
+		slot_width = 32;
+
+	/* Generate bit clock based on the slot number and slot width */
+	freq = slots * slot_width * params_rate(hw_params);
+
+	/* Don't apply it to any non-baudclk circumstance */
+	if (IS_ERR(ssi->baudclk))
+		return -EINVAL;
+
+	/*
+	 * Hardware limitation: The bclk rate must be
+	 * never greater than 1/5 IPG clock rate
+	 */
+	if (freq * 5 > clk_get_rate(ssi->clk)) {
+		dev_err(dai->dev, "bitclk > ipgclk / 5\n");
+		return -EINVAL;
+	}
+
+	baudclk_is_used = ssi->baudclk_streams & ~(BIT(substream->stream));
+
+	/* It should be already enough to divide clock by setting pm alone */
+	psr = 0;
+	div2 = 0;
+
+	factor = (div2 + 1) * (7 * psr + 1) * 2;
+
+	for (i = 0; i < 255; i++) {
+		tmprate = freq * factor * (i + 1);
+
+		if (baudclk_is_used)
+			clkrate = clk_get_rate(ssi->baudclk);
+		else
+			clkrate = clk_round_rate(ssi->baudclk, tmprate);
+
+		clkrate /= factor;
+		afreq = clkrate / (i + 1);
+
+		if (freq == afreq)
+			sub = 0;
+		else if (freq / afreq == 1)
+			sub = freq - afreq;
+		else if (afreq / freq == 1)
+			sub = afreq - freq;
+		else
+			continue;
+
+		/* Calculate the fraction */
+		sub *= 100000;
+		do_div(sub, freq);
+
+		if (sub < savesub && !(i == 0)) {
+			baudrate = tmprate;
+			savesub = sub;
+			pm = i;
+		}
+
+		/* We are lucky */
+		if (savesub == 0)
+			break;
+	}
+
+	/* No proper pm found if it is still remaining the initial value */
+	if (pm == 999) {
+		dev_err(dai->dev, "failed to handle the required sysclk\n");
+		return -EINVAL;
+	}
+
+	stccr = SSI_SxCCR_PM(pm + 1);
+	mask = SSI_SxCCR_PM_MASK | SSI_SxCCR_DIV2 | SSI_SxCCR_PSR;
+
+	/* STCCR is used for RX in synchronous mode */
+	tx2 = tx || ssi->synchronous;
+	regmap_update_bits(regs, REG_SSI_SxCCR(tx2), mask, stccr);
+
+	if (!baudclk_is_used) {
+		ret = clk_set_rate(ssi->baudclk, baudrate);
+		if (ret) {
+			dev_err(dai->dev, "failed to set baudclk rate\n");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+/**
+ * fsl_ssi_hw_params - Configure SSI based on PCM hardware parameters
+ * @substream: ASoC substream
+ * @hw_params: pointers to hw_params
+ * @dai: pointer to DAI
+ *
+ * Notes:
+ * 1) SxCCR.WL bits are critical bits that require SSI to be temporarily
+ *    disabled on offline_config SoCs. Even for online configurable SoCs
+ *    running in synchronous mode (both TX and RX use STCCR), it is not
+ *    safe to re-configure them when both two streams start running.
+ * 2) SxCCR.PM, SxCCR.DIV2 and SxCCR.PSR bits will be configured in the
+ *    fsl_ssi_set_bclk() if SSI is the DAI clock master.
+ */
+static int fsl_ssi_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *hw_params,
+			     struct snd_soc_dai *dai)
+{
+	bool tx2, tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	struct fsl_ssi *ssi = snd_soc_dai_get_drvdata(dai);
+	struct fsl_ssi_regvals *vals = ssi->regvals;
+	struct regmap *regs = ssi->regs;
+	unsigned int channels = params_channels(hw_params);
+	unsigned int sample_size = params_width(hw_params);
+	u32 wl = SSI_SxCCR_WL(sample_size);
+	int ret;
+
+	if (fsl_ssi_is_i2s_clock_provider(ssi)) {
+		ret = fsl_ssi_set_bclk(substream, dai, hw_params);
+		if (ret)
+			return ret;
+
+		/* Do not enable the clock if it is already enabled */
+		if (!(ssi->baudclk_streams & BIT(substream->stream))) {
+			ret = clk_prepare_enable(ssi->baudclk);
+			if (ret)
+				return ret;
+
+			ssi->baudclk_streams |= BIT(substream->stream);
+		}
+	}
+
+	/*
+	 * SSI is properly configured if it is enabled and running in
+	 * the synchronous mode; Note that AC97 mode is an exception
+	 * that should set separate configurations for STCCR and SRCCR
+	 * despite running in the synchronous mode.
+	 */
+	if (ssi->streams && ssi->synchronous)
+		return 0;
+
+	if (!fsl_ssi_is_ac97(ssi)) {
+		/*
+		 * Keep the ssi->i2s_net intact while having a local variable
+		 * to override settings for special use cases. Otherwise, the
+		 * ssi->i2s_net will lose the settings for regular use cases.
+		 */
+		u8 i2s_net = ssi->i2s_net;
+
+		/* Normal + Network mode to send 16-bit data in 32-bit frames */
+		if (fsl_ssi_is_i2s_bc_fp(ssi) && sample_size == 16)
+			i2s_net = SSI_SCR_I2S_MODE_NORMAL | SSI_SCR_NET;
+
+		/* Use Normal mode to send mono data at 1st slot of 2 slots */
+		if (channels == 1)
+			i2s_net = SSI_SCR_I2S_MODE_NORMAL;
+
+		regmap_update_bits(regs, REG_SSI_SCR,
+				   SSI_SCR_I2S_NET_MASK, i2s_net);
+	}
+
+	/* In synchronous mode, the SSI uses STCCR for capture */
+	tx2 = tx || ssi->synchronous;
+	regmap_update_bits(regs, REG_SSI_SxCCR(tx2), SSI_SxCCR_WL_MASK, wl);
+
+	if (ssi->use_dyna_fifo) {
+		if (channels == 1) {
+			ssi->audio_config[0].n_fifos_dst = 1;
+			ssi->audio_config[1].n_fifos_src = 1;
+			vals[RX].srcr &= ~SSI_SRCR_RFEN1;
+			vals[TX].stcr &= ~SSI_STCR_TFEN1;
+			vals[RX].scr  &= ~SSI_SCR_TCH_EN;
+			vals[TX].scr  &= ~SSI_SCR_TCH_EN;
+		} else {
+			ssi->audio_config[0].n_fifos_dst = 2;
+			ssi->audio_config[1].n_fifos_src = 2;
+			vals[RX].srcr |= SSI_SRCR_RFEN1;
+			vals[TX].stcr |= SSI_STCR_TFEN1;
+			vals[RX].scr  |= SSI_SCR_TCH_EN;
+			vals[TX].scr  |= SSI_SCR_TCH_EN;
+		}
+		ssi->dma_params_tx.peripheral_config = &ssi->audio_config[0];
+		ssi->dma_params_tx.peripheral_size = sizeof(ssi->audio_config[0]);
+		ssi->dma_params_rx.peripheral_config = &ssi->audio_config[1];
+		ssi->dma_params_rx.peripheral_size = sizeof(ssi->audio_config[1]);
+	}
+
+	return 0;
+}
+
+static int fsl_ssi_hw_free(struct snd_pcm_substream *substream,
+			   struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_ssi *ssi = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+
+	if (fsl_ssi_is_i2s_clock_provider(ssi) &&
+	    ssi->baudclk_streams & BIT(substream->stream)) {
+		clk_disable_unprepare(ssi->baudclk);
+		ssi->baudclk_streams &= ~BIT(substream->stream);
+	}
+
+	return 0;
+}
+
+static int _fsl_ssi_set_dai_fmt(struct fsl_ssi *ssi, unsigned int fmt)
+{
+	u32 strcr = 0, scr = 0, stcr, srcr, mask;
+	unsigned int slots;
+
+	ssi->dai_fmt = fmt;
+
+	/* Synchronize frame sync clock for TE to avoid data slipping */
+	scr |= SSI_SCR_SYNC_TX_FS;
+
+	/* Set to default shifting settings: LSB_ALIGNED */
+	strcr |= SSI_STCR_TXBIT0;
+
+	/* Use Network mode as default */
+	ssi->i2s_net = SSI_SCR_NET;
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+		case SND_SOC_DAIFMT_BP_FP:
+			if (IS_ERR(ssi->baudclk)) {
+				dev_err(ssi->dev,
+					"missing baudclk for master mode\n");
+				return -EINVAL;
+			}
+			fallthrough;
+		case SND_SOC_DAIFMT_BC_FP:
+			ssi->i2s_net |= SSI_SCR_I2S_MODE_MASTER;
+			break;
+		case SND_SOC_DAIFMT_BC_FC:
+			ssi->i2s_net |= SSI_SCR_I2S_MODE_SLAVE;
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		slots = ssi->slots ? : 2;
+		regmap_update_bits(ssi->regs, REG_SSI_STCCR,
+				   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(slots));
+		regmap_update_bits(ssi->regs, REG_SSI_SRCCR,
+				   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(slots));
+
+		/* Data on rising edge of bclk, frame low, 1clk before data */
+		strcr |= SSI_STCR_TFSI | SSI_STCR_TSCKP | SSI_STCR_TEFS;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		/* Data on rising edge of bclk, frame high */
+		strcr |= SSI_STCR_TSCKP;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		/* Data on rising edge of bclk, frame high, 1clk before data */
+		strcr |= SSI_STCR_TFSL | SSI_STCR_TSCKP | SSI_STCR_TEFS;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		/* Data on rising edge of bclk, frame high */
+		strcr |= SSI_STCR_TFSL | SSI_STCR_TSCKP;
+		break;
+	case SND_SOC_DAIFMT_AC97:
+		/* Data on falling edge of bclk, frame high, 1clk before data */
+		strcr |= SSI_STCR_TEFS;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	scr |= ssi->i2s_net;
+
+	/* DAI clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		/* Nothing to do for both normal cases */
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		/* Invert bit clock */
+		strcr ^= SSI_STCR_TSCKP;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		/* Invert frame clock */
+		strcr ^= SSI_STCR_TFSI;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		/* Invert both clocks */
+		strcr ^= SSI_STCR_TSCKP;
+		strcr ^= SSI_STCR_TFSI;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* DAI clock provider masks */
+	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BP_FP:
+		/* Output bit and frame sync clocks */
+		strcr |= SSI_STCR_TFDIR | SSI_STCR_TXDIR;
+		scr |= SSI_SCR_SYS_CLK_EN;
+		break;
+	case SND_SOC_DAIFMT_BC_FC:
+		/* Input bit or frame sync clocks */
+		break;
+	case SND_SOC_DAIFMT_BC_FP:
+		/* Input bit clock but output frame sync clock */
+		strcr |= SSI_STCR_TFDIR;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	stcr = strcr;
+	srcr = strcr;
+
+	/* Set SYN mode and clear RXDIR bit when using SYN or AC97 mode */
+	if (ssi->synchronous || fsl_ssi_is_ac97(ssi)) {
+		srcr &= ~SSI_SRCR_RXDIR;
+		scr |= SSI_SCR_SYN;
+	}
+
+	mask = SSI_STCR_TFDIR | SSI_STCR_TXDIR | SSI_STCR_TSCKP |
+	       SSI_STCR_TFSL | SSI_STCR_TFSI | SSI_STCR_TEFS | SSI_STCR_TXBIT0;
+
+	regmap_update_bits(ssi->regs, REG_SSI_STCR, mask, stcr);
+	regmap_update_bits(ssi->regs, REG_SSI_SRCR, mask, srcr);
+
+	mask = SSI_SCR_SYNC_TX_FS | SSI_SCR_I2S_MODE_MASK |
+	       SSI_SCR_SYS_CLK_EN | SSI_SCR_SYN;
+	regmap_update_bits(ssi->regs, REG_SSI_SCR, mask, scr);
+
+	return 0;
+}
+
+/**
+ * fsl_ssi_set_dai_fmt - Configure Digital Audio Interface (DAI) Format
+ * @dai: pointer to DAI
+ * @fmt: format mask
+ */
+static int fsl_ssi_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct fsl_ssi *ssi = snd_soc_dai_get_drvdata(dai);
+
+	/* AC97 configured DAIFMT earlier in the probe() */
+	if (fsl_ssi_is_ac97(ssi))
+		return 0;
+
+	return _fsl_ssi_set_dai_fmt(ssi, fmt);
+}
+
+/**
+ * fsl_ssi_set_dai_tdm_slot - Set TDM slot number and slot width
+ * @dai: pointer to DAI
+ * @tx_mask: mask for TX
+ * @rx_mask: mask for RX
+ * @slots: number of slots
+ * @slot_width: number of bits per slot
+ */
+static int fsl_ssi_set_dai_tdm_slot(struct snd_soc_dai *dai, u32 tx_mask,
+				    u32 rx_mask, int slots, int slot_width)
+{
+	struct fsl_ssi *ssi = snd_soc_dai_get_drvdata(dai);
+	struct regmap *regs = ssi->regs;
+	u32 val;
+
+	/* The word length should be 8, 10, 12, 16, 18, 20, 22 or 24 */
+	if (slot_width & 1 || slot_width < 8 || slot_width > 24) {
+		dev_err(dai->dev, "invalid slot width: %d\n", slot_width);
+		return -EINVAL;
+	}
+
+	/* The slot number should be >= 2 if using Network mode or I2S mode */
+	if (ssi->i2s_net && slots < 2) {
+		dev_err(dai->dev, "slot number should be >= 2 in I2S or NET\n");
+		return -EINVAL;
+	}
+
+	regmap_update_bits(regs, REG_SSI_STCCR,
+			   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(slots));
+	regmap_update_bits(regs, REG_SSI_SRCCR,
+			   SSI_SxCCR_DC_MASK, SSI_SxCCR_DC(slots));
+
+	/* Save the SCR register value */
+	regmap_read(regs, REG_SSI_SCR, &val);
+	/* Temporarily enable SSI to allow SxMSKs to be configurable */
+	regmap_update_bits(regs, REG_SSI_SCR, SSI_SCR_SSIEN, SSI_SCR_SSIEN);
+
+	regmap_write(regs, REG_SSI_STMSK, ~tx_mask);
+	regmap_write(regs, REG_SSI_SRMSK, ~rx_mask);
+
+	/* Restore the value of SSIEN bit */
+	regmap_update_bits(regs, REG_SSI_SCR, SSI_SCR_SSIEN, val);
+
+	ssi->slot_width = slot_width;
+	ssi->slots = slots;
+
+	return 0;
+}
+
+/**
+ * fsl_ssi_trigger - Start or stop SSI and corresponding DMA transaction.
+ * @substream: ASoC substream
+ * @cmd: trigger command
+ * @dai: pointer to DAI
+ *
+ * The DMA channel is in external master start and pause mode, which
+ * means the SSI completely controls the flow of data.
+ */
+static int fsl_ssi_trigger(struct snd_pcm_substream *substream, int cmd,
+			   struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct fsl_ssi *ssi = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		/*
+		 * SACCST might be modified via AC Link by a CODEC if it sends
+		 * extra bits in their SLOTREQ requests, which'll accidentally
+		 * send valid data to slots other than normal playback slots.
+		 *
+		 * To be safe, configure SACCST right before TX starts.
+		 */
+		if (tx && fsl_ssi_is_ac97(ssi))
+			fsl_ssi_tx_ac97_saccst_setup(ssi);
+		fsl_ssi_config_enable(ssi, tx);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		fsl_ssi_config_disable(ssi, tx);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int fsl_ssi_dai_probe(struct snd_soc_dai *dai)
+{
+	struct fsl_ssi *ssi = snd_soc_dai_get_drvdata(dai);
+
+	if (ssi->soc->imx && ssi->use_dma)
+		snd_soc_dai_init_dma_data(dai, &ssi->dma_params_tx,
+					  &ssi->dma_params_rx);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops fsl_ssi_dai_ops = {
+	.startup = fsl_ssi_startup,
+	.shutdown = fsl_ssi_shutdown,
+	.hw_params = fsl_ssi_hw_params,
+	.hw_free = fsl_ssi_hw_free,
+	.set_fmt = fsl_ssi_set_dai_fmt,
+	.set_tdm_slot = fsl_ssi_set_dai_tdm_slot,
+	.trigger = fsl_ssi_trigger,
+};
+
+static struct snd_soc_dai_driver fsl_ssi_dai_template = {
+	.probe = fsl_ssi_dai_probe,
+	.playback = {
+		.stream_name = "CPU-Playback",
+		.channels_min = 1,
+		.channels_max = 32,
+		.rates = SNDRV_PCM_RATE_CONTINUOUS,
+		.formats = FSLSSI_I2S_FORMATS,
+	},
+	.capture = {
+		.stream_name = "CPU-Capture",
+		.channels_min = 1,
+		.channels_max = 32,
+		.rates = SNDRV_PCM_RATE_CONTINUOUS,
+		.formats = FSLSSI_I2S_FORMATS,
+	},
+	.ops = &fsl_ssi_dai_ops,
+};
+
+static const struct snd_soc_component_driver fsl_ssi_component = {
+	.name = "fsl-ssi",
+	.legacy_dai_naming = 1,
+};
+
+static struct snd_soc_dai_driver fsl_ssi_ac97_dai = {
+	.symmetric_channels = 1,
+	.probe = fsl_ssi_dai_probe,
+	.playback = {
+		.stream_name = "CPU AC97 Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_S20,
+	},
+	.capture = {
+		.stream_name = "CPU AC97 Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_48000,
+		/* 16-bit capture is broken (errata ERR003778) */
+		.formats = SNDRV_PCM_FMTBIT_S20,
+	},
+	.ops = &fsl_ssi_dai_ops,
+};
+
+static struct fsl_ssi *fsl_ac97_data;
+
+static void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
+			       unsigned short val)
+{
+	struct regmap *regs = fsl_ac97_data->regs;
+	unsigned int lreg;
+	unsigned int lval;
+	int ret;
+
+	if (reg > 0x7f)
+		return;
+
+	mutex_lock(&fsl_ac97_data->ac97_reg_lock);
+
+	ret = clk_prepare_enable(fsl_ac97_data->clk);
+	if (ret) {
+		pr_err("ac97 write clk_prepare_enable failed: %d\n",
+			ret);
+		goto ret_unlock;
+	}
+
+	lreg = reg <<  12;
+	regmap_write(regs, REG_SSI_SACADD, lreg);
+
+	lval = val << 4;
+	regmap_write(regs, REG_SSI_SACDAT, lval);
+
+	regmap_update_bits(regs, REG_SSI_SACNT,
+			   SSI_SACNT_RDWR_MASK, SSI_SACNT_WR);
+	udelay(100);
+
+	clk_disable_unprepare(fsl_ac97_data->clk);
+
+ret_unlock:
+	mutex_unlock(&fsl_ac97_data->ac97_reg_lock);
+}
+
+static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
+					unsigned short reg)
+{
+	struct regmap *regs = fsl_ac97_data->regs;
+	unsigned short val = 0;
+	u32 reg_val;
+	unsigned int lreg;
+	int ret;
+
+	mutex_lock(&fsl_ac97_data->ac97_reg_lock);
+
+	ret = clk_prepare_enable(fsl_ac97_data->clk);
+	if (ret) {
+		pr_err("ac97 read clk_prepare_enable failed: %d\n", ret);
+		goto ret_unlock;
+	}
+
+	lreg = (reg & 0x7f) <<  12;
+	regmap_write(regs, REG_SSI_SACADD, lreg);
+	regmap_update_bits(regs, REG_SSI_SACNT,
+			   SSI_SACNT_RDWR_MASK, SSI_SACNT_RD);
+
+	udelay(100);
+
+	regmap_read(regs, REG_SSI_SACDAT, &reg_val);
+	val = (reg_val >> 4) & 0xffff;
+
+	clk_disable_unprepare(fsl_ac97_data->clk);
+
+ret_unlock:
+	mutex_unlock(&fsl_ac97_data->ac97_reg_lock);
+	return val;
+}
+
+static struct snd_ac97_bus_ops fsl_ssi_ac97_ops = {
+	.read = fsl_ssi_ac97_read,
+	.write = fsl_ssi_ac97_write,
+};
+
+/**
+ * fsl_ssi_hw_init - Initialize SSI registers
+ * @ssi: SSI context
+ */
+static int fsl_ssi_hw_init(struct fsl_ssi *ssi)
+{
+	u32 wm = ssi->fifo_watermark;
+
+	/* Initialize regvals */
+	fsl_ssi_setup_regvals(ssi);
+
+	/* Set watermarks */
+	regmap_write(ssi->regs, REG_SSI_SFCSR,
+		     SSI_SFCSR_TFWM0(wm) | SSI_SFCSR_RFWM0(wm) |
+		     SSI_SFCSR_TFWM1(wm) | SSI_SFCSR_RFWM1(wm));
+
+	/* Enable Dual FIFO mode */
+	if (ssi->use_dual_fifo)
+		regmap_update_bits(ssi->regs, REG_SSI_SCR,
+				   SSI_SCR_TCH_EN, SSI_SCR_TCH_EN);
+
+	/* AC97 should start earlier to communicate with CODECs */
+	if (fsl_ssi_is_ac97(ssi)) {
+		_fsl_ssi_set_dai_fmt(ssi, ssi->dai_fmt);
+		fsl_ssi_setup_ac97(ssi);
+	}
+
+	return 0;
+}
+
+/**
+ * fsl_ssi_hw_clean - Clear SSI registers
+ * @ssi: SSI context
+ */
+static void fsl_ssi_hw_clean(struct fsl_ssi *ssi)
+{
+	/* Disable registers for AC97 */
+	if (fsl_ssi_is_ac97(ssi)) {
+		/* Disable TE and RE bits first */
+		regmap_update_bits(ssi->regs, REG_SSI_SCR,
+				   SSI_SCR_TE | SSI_SCR_RE, 0);
+		/* Disable AC97 mode */
+		regmap_write(ssi->regs, REG_SSI_SACNT, 0);
+		/* Unset WAIT bits */
+		regmap_write(ssi->regs, REG_SSI_SOR, 0);
+		/* Disable SSI -- software reset */
+		regmap_update_bits(ssi->regs, REG_SSI_SCR, SSI_SCR_SSIEN, 0);
+	}
+}
+
+/*
+ * Make every character in a string lower-case
+ */
+static void make_lowercase(char *s)
+{
+	if (!s)
+		return;
+	for (; *s; s++)
+		*s = tolower(*s);
+}
+
+static int fsl_ssi_imx_probe(struct platform_device *pdev,
+			     struct fsl_ssi *ssi, void __iomem *iomem)
+{
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	/* Backward compatible for a DT without ipg clock name assigned */
+	if (ssi->has_ipg_clk_name)
+		ssi->clk = devm_clk_get(dev, "ipg");
+	else
+		ssi->clk = devm_clk_get(dev, NULL);
+	if (IS_ERR(ssi->clk)) {
+		ret = PTR_ERR(ssi->clk);
+		dev_err(dev, "failed to get clock: %d\n", ret);
+		return ret;
+	}
+
+	/* Enable the clock since regmap will not handle it in this case */
+	if (!ssi->has_ipg_clk_name) {
+		ret = clk_prepare_enable(ssi->clk);
+		if (ret) {
+			dev_err(dev, "clk_prepare_enable failed: %d\n", ret);
+			return ret;
+		}
+	}
+
+	/* Do not error out for consumer cases that live without a baud clock */
+	ssi->baudclk = devm_clk_get(dev, "baud");
+	if (IS_ERR(ssi->baudclk))
+		dev_dbg(dev, "failed to get baud clock: %ld\n",
+			 PTR_ERR(ssi->baudclk));
+
+	ssi->dma_params_tx.maxburst = ssi->dma_maxburst;
+	ssi->dma_params_rx.maxburst = ssi->dma_maxburst;
+	ssi->dma_params_tx.addr = ssi->ssi_phys + REG_SSI_STX0;
+	ssi->dma_params_rx.addr = ssi->ssi_phys + REG_SSI_SRX0;
+
+	/* Use even numbers to avoid channel swap due to SDMA script design */
+	if (ssi->use_dual_fifo || ssi->use_dyna_fifo) {
+		ssi->dma_params_tx.maxburst &= ~0x1;
+		ssi->dma_params_rx.maxburst &= ~0x1;
+	}
+
+	if (!ssi->use_dma) {
+		/*
+		 * Some boards use an incompatible codec. Use imx-fiq-pcm-audio
+		 * to get it working, as DMA is not possible in this situation.
+		 */
+		ssi->fiq_params.irq = ssi->irq;
+		ssi->fiq_params.base = iomem;
+		ssi->fiq_params.dma_params_rx = &ssi->dma_params_rx;
+		ssi->fiq_params.dma_params_tx = &ssi->dma_params_tx;
+
+		ret = imx_pcm_fiq_init(pdev, &ssi->fiq_params);
+		if (ret)
+			goto error_pcm;
+	} else {
+		ret = imx_pcm_dma_init(pdev);
+		if (ret)
+			goto error_pcm;
+	}
+
+	return 0;
+
+error_pcm:
+	if (!ssi->has_ipg_clk_name)
+		clk_disable_unprepare(ssi->clk);
+
+	return ret;
+}
+
+static void fsl_ssi_imx_clean(struct platform_device *pdev, struct fsl_ssi *ssi)
+{
+	if (!ssi->use_dma)
+		imx_pcm_fiq_exit(pdev);
+	if (!ssi->has_ipg_clk_name)
+		clk_disable_unprepare(ssi->clk);
+}
+
+static int fsl_ssi_probe_from_dt(struct fsl_ssi *ssi)
+{
+	struct device *dev = ssi->dev;
+	struct device_node *np = dev->of_node;
+	const char *p, *sprop;
+	const __be32 *iprop;
+	u32 dmas[4];
+	int ret;
+
+	ret = of_property_match_string(np, "clock-names", "ipg");
+	/* Get error code if not found */
+	ssi->has_ipg_clk_name = ret >= 0;
+
+	/* Check if being used in AC97 mode */
+	sprop = of_get_property(np, "fsl,mode", NULL);
+	if (sprop && !strcmp(sprop, "ac97-slave")) {
+		ssi->dai_fmt = FSLSSI_AC97_DAIFMT;
+
+		ret = of_property_read_u32(np, "cell-index", &ssi->card_idx);
+		if (ret) {
+			dev_err(dev, "failed to get SSI index property\n");
+			return -EINVAL;
+		}
+		strcpy(ssi->card_name, "ac97-codec");
+	} else if (!of_property_read_bool(np, "fsl,ssi-asynchronous")) {
+		/*
+		 * In synchronous mode, STCK and STFS ports are used by RX
+		 * as well. So the software should limit the sample rates,
+		 * sample bits and channels to be symmetric.
+		 *
+		 * This is exclusive with FSLSSI_AC97_FORMATS as AC97 runs
+		 * in the SSI synchronous mode however it does not have to
+		 * limit symmetric sample rates and sample bits.
+		 */
+		ssi->synchronous = true;
+	}
+
+	/* Select DMA or FIQ */
+	ssi->use_dma = !of_property_read_bool(np, "fsl,fiq-stream-filter");
+
+	/* Fetch FIFO depth; Set to 8 for older DT without this property */
+	iprop = of_get_property(np, "fsl,fifo-depth", NULL);
+	if (iprop)
+		ssi->fifo_depth = be32_to_cpup(iprop);
+	else
+		ssi->fifo_depth = 8;
+
+	/* Use dual FIFO mode depending on the support from SDMA script */
+	ret = of_property_read_u32_array(np, "dmas", dmas, 4);
+	if (ssi->use_dma && !ret && dmas[2] == IMX_DMATYPE_SSI_DUAL)
+		ssi->use_dual_fifo = true;
+
+	if (ssi->use_dma && !ret && dmas[2] == IMX_DMATYPE_MULTI_SAI)
+		ssi->use_dyna_fifo = true;
+	/*
+	 * Backward compatible for older bindings by manually triggering the
+	 * machine driver's probe(). Use /compatible property, including the
+	 * address of CPU DAI driver structure, as the name of machine driver
+	 *
+	 * If card_name is set by AC97 earlier, bypass here since it uses a
+	 * different name to register the device.
+	 */
+	if (!ssi->card_name[0] && of_get_property(np, "codec-handle", NULL)) {
+		struct device_node *root = of_find_node_by_path("/");
+
+		sprop = of_get_property(root, "compatible", NULL);
+		of_node_put(root);
+		/* Strip "fsl," in the compatible name if applicable */
+		p = strrchr(sprop, ',');
+		if (p)
+			sprop = p + 1;
+		snprintf(ssi->card_name, sizeof(ssi->card_name),
+			 "snd-soc-%s", sprop);
+		make_lowercase(ssi->card_name);
+		ssi->card_idx = 0;
+	}
+
+	return 0;
+}
+
+static int fsl_ssi_probe(struct platform_device *pdev)
+{
+	struct regmap_config regconfig = fsl_ssi_regconfig;
+	struct device *dev = &pdev->dev;
+	struct fsl_ssi *ssi;
+	struct resource *res;
+	void __iomem *iomem;
+	int ret = 0;
+
+	ssi = devm_kzalloc(dev, sizeof(*ssi), GFP_KERNEL);
+	if (!ssi)
+		return -ENOMEM;
+
+	ssi->dev = dev;
+	ssi->soc = of_device_get_match_data(&pdev->dev);
+
+	/* Probe from DT */
+	ret = fsl_ssi_probe_from_dt(ssi);
+	if (ret)
+		return ret;
+
+	if (fsl_ssi_is_ac97(ssi)) {
+		memcpy(&ssi->cpu_dai_drv, &fsl_ssi_ac97_dai,
+		       sizeof(fsl_ssi_ac97_dai));
+		fsl_ac97_data = ssi;
+	} else {
+		memcpy(&ssi->cpu_dai_drv, &fsl_ssi_dai_template,
+		       sizeof(fsl_ssi_dai_template));
+	}
+	ssi->cpu_dai_drv.name = dev_name(dev);
+
+	iomem = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(iomem))
+		return PTR_ERR(iomem);
+	ssi->ssi_phys = res->start;
+
+	if (ssi->soc->imx21regs) {
+		/* No SACC{ST,EN,DIS} regs in imx21-class SSI */
+		regconfig.max_register = REG_SSI_SRMSK;
+		regconfig.num_reg_defaults_raw =
+			REG_SSI_SRMSK / sizeof(uint32_t) + 1;
+	}
+
+	if (ssi->has_ipg_clk_name)
+		ssi->regs = devm_regmap_init_mmio_clk(dev, "ipg", iomem,
+						      &regconfig);
+	else
+		ssi->regs = devm_regmap_init_mmio(dev, iomem, &regconfig);
+	if (IS_ERR(ssi->regs)) {
+		dev_err(dev, "failed to init register map\n");
+		return PTR_ERR(ssi->regs);
+	}
+
+	ssi->irq = platform_get_irq(pdev, 0);
+	if (ssi->irq < 0)
+		return ssi->irq;
+
+	/* Set software limitations for synchronous mode except AC97 */
+	if (ssi->synchronous && !fsl_ssi_is_ac97(ssi)) {
+		ssi->cpu_dai_drv.symmetric_rate = 1;
+		ssi->cpu_dai_drv.symmetric_channels = 1;
+		ssi->cpu_dai_drv.symmetric_sample_bits = 1;
+	}
+
+	/*
+	 * Configure TX and RX DMA watermarks -- when to send a DMA request
+	 *
+	 * Values should be tested to avoid FIFO under/over run. Set maxburst
+	 * to fifo_watermark to maxiumize DMA transaction to reduce overhead.
+	 */
+	switch (ssi->fifo_depth) {
+	case 15:
+		/*
+		 * Set to 8 as a balanced configuration -- When TX FIFO has 8
+		 * empty slots, send a DMA request to fill these 8 slots. The
+		 * remaining 7 slots should be able to allow DMA to finish the
+		 * transaction before TX FIFO underruns; Same applies to RX.
+		 *
+		 * Tested with cases running at 48kHz @ 16 bits x 16 channels
+		 */
+		ssi->fifo_watermark = 8;
+		ssi->dma_maxburst = 8;
+		break;
+	case 8:
+	default:
+		/* Safely use old watermark configurations for older chips */
+		ssi->fifo_watermark = ssi->fifo_depth - 2;
+		ssi->dma_maxburst = ssi->fifo_depth - 2;
+		break;
+	}
+
+	dev_set_drvdata(dev, ssi);
+
+	if (ssi->soc->imx) {
+		ret = fsl_ssi_imx_probe(pdev, ssi, iomem);
+		if (ret)
+			return ret;
+	}
+
+	if (fsl_ssi_is_ac97(ssi)) {
+		mutex_init(&ssi->ac97_reg_lock);
+		ret = snd_soc_set_ac97_ops_of_reset(&fsl_ssi_ac97_ops, pdev);
+		if (ret) {
+			dev_err(dev, "failed to set AC'97 ops\n");
+			goto error_ac97_ops;
+		}
+	}
+
+	ret = devm_snd_soc_register_component(dev, &fsl_ssi_component,
+					      &ssi->cpu_dai_drv, 1);
+	if (ret) {
+		dev_err(dev, "failed to register DAI: %d\n", ret);
+		goto error_asoc_register;
+	}
+
+	if (ssi->use_dma) {
+		ret = devm_request_irq(dev, ssi->irq, fsl_ssi_isr, 0,
+				       dev_name(dev), ssi);
+		if (ret < 0) {
+			dev_err(dev, "failed to claim irq %u\n", ssi->irq);
+			goto error_asoc_register;
+		}
+	}
+
+	fsl_ssi_debugfs_create(&ssi->dbg_stats, dev);
+
+	/* Initially configures SSI registers */
+	fsl_ssi_hw_init(ssi);
+
+	/* Register a platform device for older bindings or AC97 */
+	if (ssi->card_name[0]) {
+		struct device *parent = dev;
+		/*
+		 * Do not set SSI dev as the parent of AC97 CODEC device since
+		 * it does not have a DT node. Otherwise ASoC core will assume
+		 * CODEC has the same DT node as the SSI, so it may bypass the
+		 * dai_probe() of SSI and then cause NULL DMA data pointers.
+		 */
+		if (fsl_ssi_is_ac97(ssi))
+			parent = NULL;
+
+		ssi->card_pdev = platform_device_register_data(parent,
+				ssi->card_name, ssi->card_idx, NULL, 0);
+		if (IS_ERR(ssi->card_pdev)) {
+			ret = PTR_ERR(ssi->card_pdev);
+			dev_err(dev, "failed to register %s: %d\n",
+				ssi->card_name, ret);
+			goto error_sound_card;
+		}
+	}
+
+	return 0;
+
+error_sound_card:
+	fsl_ssi_debugfs_remove(&ssi->dbg_stats);
+error_asoc_register:
+	if (fsl_ssi_is_ac97(ssi))
+		snd_soc_set_ac97_ops(NULL);
+error_ac97_ops:
+	if (fsl_ssi_is_ac97(ssi))
+		mutex_destroy(&ssi->ac97_reg_lock);
+
+	if (ssi->soc->imx)
+		fsl_ssi_imx_clean(pdev, ssi);
+
+	return ret;
+}
+
+static int fsl_ssi_remove(struct platform_device *pdev)
+{
+	struct fsl_ssi *ssi = dev_get_drvdata(&pdev->dev);
+
+	fsl_ssi_debugfs_remove(&ssi->dbg_stats);
+
+	if (ssi->card_pdev)
+		platform_device_unregister(ssi->card_pdev);
+
+	/* Clean up SSI registers */
+	fsl_ssi_hw_clean(ssi);
+
+	if (ssi->soc->imx)
+		fsl_ssi_imx_clean(pdev, ssi);
+
+	if (fsl_ssi_is_ac97(ssi)) {
+		snd_soc_set_ac97_ops(NULL);
+		mutex_destroy(&ssi->ac97_reg_lock);
+	}
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int fsl_ssi_suspend(struct device *dev)
+{
+	struct fsl_ssi *ssi = dev_get_drvdata(dev);
+	struct regmap *regs = ssi->regs;
+
+	regmap_read(regs, REG_SSI_SFCSR, &ssi->regcache_sfcsr);
+	regmap_read(regs, REG_SSI_SACNT, &ssi->regcache_sacnt);
+
+	regcache_cache_only(regs, true);
+	regcache_mark_dirty(regs);
+
+	return 0;
+}
+
+static int fsl_ssi_resume(struct device *dev)
+{
+	struct fsl_ssi *ssi = dev_get_drvdata(dev);
+	struct regmap *regs = ssi->regs;
+
+	regcache_cache_only(regs, false);
+
+	regmap_update_bits(regs, REG_SSI_SFCSR,
+			   SSI_SFCSR_RFWM1_MASK | SSI_SFCSR_TFWM1_MASK |
+			   SSI_SFCSR_RFWM0_MASK | SSI_SFCSR_TFWM0_MASK,
+			   ssi->regcache_sfcsr);
+	regmap_write(regs, REG_SSI_SACNT, ssi->regcache_sacnt);
+
+	return regcache_sync(regs);
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops fsl_ssi_pm = {
+	SET_SYSTEM_SLEEP_PM_OPS(fsl_ssi_suspend, fsl_ssi_resume)
+};
+
+static struct platform_driver fsl_ssi_driver = {
+	.driver = {
+		.name = "fsl-ssi-dai",
+		.of_match_table = fsl_ssi_ids,
+		.pm = &fsl_ssi_pm,
+	},
+	.probe = fsl_ssi_probe,
+	.remove = fsl_ssi_remove,
+};
+
+module_platform_driver(fsl_ssi_driver);
+
+MODULE_ALIAS("platform:fsl-ssi-dai");
+MODULE_AUTHOR("Timur Tabi <timur@freescale.com>");
+MODULE_DESCRIPTION("Freescale Synchronous Serial Interface (SSI) ASoC Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/fsl_ssi.h b/sound/soc/fsl/fsl_ssi.h
new file mode 100644
index 000000000..db57cad80
--- /dev/null
+++ b/sound/soc/fsl/fsl_ssi.h
@@ -0,0 +1,324 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * fsl_ssi.h - ALSA SSI interface for the Freescale MPC8610 and i.MX SoC
+ *
+ * Author: Timur Tabi <timur@freescale.com>
+ *
+ * Copyright 2007-2008 Freescale Semiconductor, Inc.
+ */
+
+#ifndef _MPC8610_I2S_H
+#define _MPC8610_I2S_H
+
+/* -- SSI Register Map -- */
+
+/* SSI Transmit Data Register 0 */
+#define REG_SSI_STX0			0x00
+/* SSI Transmit Data Register 1 */
+#define REG_SSI_STX1			0x04
+/* SSI Receive Data Register 0 */
+#define REG_SSI_SRX0			0x08
+/* SSI Receive Data Register 1 */
+#define REG_SSI_SRX1			0x0c
+/* SSI Control Register */
+#define REG_SSI_SCR			0x10
+/* SSI Interrupt Status Register */
+#define REG_SSI_SISR			0x14
+/* SSI Interrupt Enable Register */
+#define REG_SSI_SIER			0x18
+/* SSI Transmit Configuration Register */
+#define REG_SSI_STCR			0x1c
+/* SSI Receive Configuration Register */
+#define REG_SSI_SRCR			0x20
+#define REG_SSI_SxCR(tx)		((tx) ? REG_SSI_STCR : REG_SSI_SRCR)
+/* SSI Transmit Clock Control Register */
+#define REG_SSI_STCCR			0x24
+/* SSI Receive Clock Control Register */
+#define REG_SSI_SRCCR			0x28
+#define REG_SSI_SxCCR(tx)		((tx) ? REG_SSI_STCCR : REG_SSI_SRCCR)
+/* SSI FIFO Control/Status Register */
+#define REG_SSI_SFCSR			0x2c
+/*
+ * SSI Test Register (Intended for debugging purposes only)
+ *
+ * Note: STR is not documented in recent IMX datasheet, but
+ * is described in IMX51 reference manual at section 56.3.3.14
+ */
+#define REG_SSI_STR			0x30
+/*
+ * SSI Option Register (Intended for internal use only)
+ *
+ * Note: SOR is not documented in recent IMX datasheet, but
+ * is described in IMX51 reference manual at section 56.3.3.15
+ */
+#define REG_SSI_SOR			0x34
+/* SSI AC97 Control Register */
+#define REG_SSI_SACNT			0x38
+/* SSI AC97 Command Address Register */
+#define REG_SSI_SACADD			0x3c
+/* SSI AC97 Command Data Register */
+#define REG_SSI_SACDAT			0x40
+/* SSI AC97 Tag Register */
+#define REG_SSI_SATAG			0x44
+/* SSI Transmit Time Slot Mask Register */
+#define REG_SSI_STMSK			0x48
+/* SSI  Receive Time Slot Mask Register */
+#define REG_SSI_SRMSK			0x4c
+#define REG_SSI_SxMSK(tx)		((tx) ? REG_SSI_STMSK : REG_SSI_SRMSK)
+/*
+ * SSI AC97 Channel Status Register
+ *
+ * The status could be changed by:
+ * 1) Writing a '1' bit at some position in SACCEN sets relevant bit in SACCST
+ * 2) Writing a '1' bit at some position in SACCDIS unsets the relevant bit
+ * 3) Receivng a '1' in SLOTREQ bit from external CODEC via AC Link
+ */
+#define REG_SSI_SACCST			0x50
+/* SSI AC97 Channel Enable Register -- Set bits in SACCST */
+#define REG_SSI_SACCEN			0x54
+/* SSI AC97 Channel Disable Register -- Clear bits in SACCST */
+#define REG_SSI_SACCDIS			0x58
+
+/* -- SSI Register Field Maps -- */
+
+/* SSI Control Register -- REG_SSI_SCR 0x10 */
+#define SSI_SCR_SYNC_TX_FS		0x00001000
+#define SSI_SCR_RFR_CLK_DIS		0x00000800
+#define SSI_SCR_TFR_CLK_DIS		0x00000400
+#define SSI_SCR_TCH_EN			0x00000100
+#define SSI_SCR_SYS_CLK_EN		0x00000080
+#define SSI_SCR_I2S_MODE_MASK		0x00000060
+#define SSI_SCR_I2S_MODE_NORMAL		0x00000000
+#define SSI_SCR_I2S_MODE_MASTER		0x00000020
+#define SSI_SCR_I2S_MODE_SLAVE		0x00000040
+#define SSI_SCR_SYN			0x00000010
+#define SSI_SCR_NET			0x00000008
+#define SSI_SCR_I2S_NET_MASK		(SSI_SCR_NET | SSI_SCR_I2S_MODE_MASK)
+#define SSI_SCR_RE			0x00000004
+#define SSI_SCR_TE			0x00000002
+#define SSI_SCR_SSIEN			0x00000001
+
+/* SSI Interrupt Status Register -- REG_SSI_SISR 0x14 */
+#define SSI_SISR_RFRC			0x01000000
+#define SSI_SISR_TFRC			0x00800000
+#define SSI_SISR_CMDAU			0x00040000
+#define SSI_SISR_CMDDU			0x00020000
+#define SSI_SISR_RXT			0x00010000
+#define SSI_SISR_RDR1			0x00008000
+#define SSI_SISR_RDR0			0x00004000
+#define SSI_SISR_TDE1			0x00002000
+#define SSI_SISR_TDE0			0x00001000
+#define SSI_SISR_ROE1			0x00000800
+#define SSI_SISR_ROE0			0x00000400
+#define SSI_SISR_TUE1			0x00000200
+#define SSI_SISR_TUE0			0x00000100
+#define SSI_SISR_TFS			0x00000080
+#define SSI_SISR_RFS			0x00000040
+#define SSI_SISR_TLS			0x00000020
+#define SSI_SISR_RLS			0x00000010
+#define SSI_SISR_RFF1			0x00000008
+#define SSI_SISR_RFF0			0x00000004
+#define SSI_SISR_TFE1			0x00000002
+#define SSI_SISR_TFE0			0x00000001
+
+/* SSI Interrupt Enable Register -- REG_SSI_SIER 0x18 */
+#define SSI_SIER_RFRC_EN		0x01000000
+#define SSI_SIER_TFRC_EN		0x00800000
+#define SSI_SIER_RDMAE			0x00400000
+#define SSI_SIER_RIE			0x00200000
+#define SSI_SIER_TDMAE			0x00100000
+#define SSI_SIER_TIE			0x00080000
+#define SSI_SIER_CMDAU_EN		0x00040000
+#define SSI_SIER_CMDDU_EN		0x00020000
+#define SSI_SIER_RXT_EN			0x00010000
+#define SSI_SIER_RDR1_EN		0x00008000
+#define SSI_SIER_RDR0_EN		0x00004000
+#define SSI_SIER_TDE1_EN		0x00002000
+#define SSI_SIER_TDE0_EN		0x00001000
+#define SSI_SIER_ROE1_EN		0x00000800
+#define SSI_SIER_ROE0_EN		0x00000400
+#define SSI_SIER_TUE1_EN		0x00000200
+#define SSI_SIER_TUE0_EN		0x00000100
+#define SSI_SIER_TFS_EN			0x00000080
+#define SSI_SIER_RFS_EN			0x00000040
+#define SSI_SIER_TLS_EN			0x00000020
+#define SSI_SIER_RLS_EN			0x00000010
+#define SSI_SIER_RFF1_EN		0x00000008
+#define SSI_SIER_RFF0_EN		0x00000004
+#define SSI_SIER_TFE1_EN		0x00000002
+#define SSI_SIER_TFE0_EN		0x00000001
+
+/* SSI Transmit Configuration Register -- REG_SSI_STCR 0x1C */
+#define SSI_STCR_TXBIT0			0x00000200
+#define SSI_STCR_TFEN1			0x00000100
+#define SSI_STCR_TFEN0			0x00000080
+#define SSI_STCR_TFDIR			0x00000040
+#define SSI_STCR_TXDIR			0x00000020
+#define SSI_STCR_TSHFD			0x00000010
+#define SSI_STCR_TSCKP			0x00000008
+#define SSI_STCR_TFSI			0x00000004
+#define SSI_STCR_TFSL			0x00000002
+#define SSI_STCR_TEFS			0x00000001
+
+/* SSI Receive Configuration Register -- REG_SSI_SRCR 0x20 */
+#define SSI_SRCR_RXEXT			0x00000400
+#define SSI_SRCR_RXBIT0			0x00000200
+#define SSI_SRCR_RFEN1			0x00000100
+#define SSI_SRCR_RFEN0			0x00000080
+#define SSI_SRCR_RFDIR			0x00000040
+#define SSI_SRCR_RXDIR			0x00000020
+#define SSI_SRCR_RSHFD			0x00000010
+#define SSI_SRCR_RSCKP			0x00000008
+#define SSI_SRCR_RFSI			0x00000004
+#define SSI_SRCR_RFSL			0x00000002
+#define SSI_SRCR_REFS			0x00000001
+
+/*
+ * SSI Transmit Clock Control Register -- REG_SSI_STCCR 0x24
+ * SSI Receive Clock Control Register -- REG_SSI_SRCCR 0x28
+ */
+#define SSI_SxCCR_DIV2_SHIFT		18
+#define SSI_SxCCR_DIV2			0x00040000
+#define SSI_SxCCR_PSR_SHIFT		17
+#define SSI_SxCCR_PSR			0x00020000
+#define SSI_SxCCR_WL_SHIFT		13
+#define SSI_SxCCR_WL_MASK		0x0001E000
+#define SSI_SxCCR_WL(x) \
+	(((((x) / 2) - 1) << SSI_SxCCR_WL_SHIFT) & SSI_SxCCR_WL_MASK)
+#define SSI_SxCCR_DC_SHIFT		8
+#define SSI_SxCCR_DC_MASK		0x00001F00
+#define SSI_SxCCR_DC(x) \
+	((((x) - 1) << SSI_SxCCR_DC_SHIFT) & SSI_SxCCR_DC_MASK)
+#define SSI_SxCCR_PM_SHIFT		0
+#define SSI_SxCCR_PM_MASK		0x000000FF
+#define SSI_SxCCR_PM(x) \
+	((((x) - 1) << SSI_SxCCR_PM_SHIFT) & SSI_SxCCR_PM_MASK)
+
+/*
+ * SSI FIFO Control/Status Register -- REG_SSI_SFCSR 0x2c
+ *
+ * Tx or Rx FIFO Counter -- SSI_SFCSR_xFCNTy Read-Only
+ * Tx or Rx FIFO Watermarks -- SSI_SFCSR_xFWMy Read/Write
+ */
+#define SSI_SFCSR_RFCNT1_SHIFT		28
+#define SSI_SFCSR_RFCNT1_MASK		0xF0000000
+#define SSI_SFCSR_RFCNT1(x) \
+	(((x) & SSI_SFCSR_RFCNT1_MASK) >> SSI_SFCSR_RFCNT1_SHIFT)
+#define SSI_SFCSR_TFCNT1_SHIFT		24
+#define SSI_SFCSR_TFCNT1_MASK		0x0F000000
+#define SSI_SFCSR_TFCNT1(x) \
+	(((x) & SSI_SFCSR_TFCNT1_MASK) >> SSI_SFCSR_TFCNT1_SHIFT)
+#define SSI_SFCSR_RFWM1_SHIFT		20
+#define SSI_SFCSR_RFWM1_MASK		0x00F00000
+#define SSI_SFCSR_RFWM1(x)	\
+	(((x) << SSI_SFCSR_RFWM1_SHIFT) & SSI_SFCSR_RFWM1_MASK)
+#define SSI_SFCSR_TFWM1_SHIFT		16
+#define SSI_SFCSR_TFWM1_MASK		0x000F0000
+#define SSI_SFCSR_TFWM1(x)	\
+	(((x) << SSI_SFCSR_TFWM1_SHIFT) & SSI_SFCSR_TFWM1_MASK)
+#define SSI_SFCSR_RFCNT0_SHIFT		12
+#define SSI_SFCSR_RFCNT0_MASK		0x0000F000
+#define SSI_SFCSR_RFCNT0(x) \
+	(((x) & SSI_SFCSR_RFCNT0_MASK) >> SSI_SFCSR_RFCNT0_SHIFT)
+#define SSI_SFCSR_TFCNT0_SHIFT		8
+#define SSI_SFCSR_TFCNT0_MASK		0x00000F00
+#define SSI_SFCSR_TFCNT0(x) \
+	(((x) & SSI_SFCSR_TFCNT0_MASK) >> SSI_SFCSR_TFCNT0_SHIFT)
+#define SSI_SFCSR_RFWM0_SHIFT		4
+#define SSI_SFCSR_RFWM0_MASK		0x000000F0
+#define SSI_SFCSR_RFWM0(x)	\
+	(((x) << SSI_SFCSR_RFWM0_SHIFT) & SSI_SFCSR_RFWM0_MASK)
+#define SSI_SFCSR_TFWM0_SHIFT		0
+#define SSI_SFCSR_TFWM0_MASK		0x0000000F
+#define SSI_SFCSR_TFWM0(x)	\
+	(((x) << SSI_SFCSR_TFWM0_SHIFT) & SSI_SFCSR_TFWM0_MASK)
+
+/* SSI Test Register -- REG_SSI_STR 0x30 */
+#define SSI_STR_TEST			0x00008000
+#define SSI_STR_RCK2TCK			0x00004000
+#define SSI_STR_RFS2TFS			0x00002000
+#define SSI_STR_RXSTATE(x)		(((x) >> 8) & 0x1F)
+#define SSI_STR_TXD2RXD			0x00000080
+#define SSI_STR_TCK2RCK			0x00000040
+#define SSI_STR_TFS2RFS			0x00000020
+#define SSI_STR_TXSTATE(x)		((x) & 0x1F)
+
+/* SSI Option Register -- REG_SSI_SOR 0x34 */
+#define SSI_SOR_CLKOFF			0x00000040
+#define SSI_SOR_RX_CLR			0x00000020
+#define SSI_SOR_TX_CLR			0x00000010
+#define SSI_SOR_xX_CLR(tx)		((tx) ? SSI_SOR_TX_CLR : SSI_SOR_RX_CLR)
+#define SSI_SOR_INIT			0x00000008
+#define SSI_SOR_WAIT_SHIFT		1
+#define SSI_SOR_WAIT_MASK		0x00000006
+#define SSI_SOR_WAIT(x)			(((x) & 3) << SSI_SOR_WAIT_SHIFT)
+#define SSI_SOR_SYNRST			0x00000001
+
+/* SSI AC97 Control Register -- REG_SSI_SACNT 0x38 */
+#define SSI_SACNT_FRDIV(x)		(((x) & 0x3f) << 5)
+#define SSI_SACNT_WR			0x00000010
+#define SSI_SACNT_RD			0x00000008
+#define SSI_SACNT_RDWR_MASK		0x00000018
+#define SSI_SACNT_TIF			0x00000004
+#define SSI_SACNT_FV			0x00000002
+#define SSI_SACNT_AC97EN		0x00000001
+
+
+struct device;
+
+#if IS_ENABLED(CONFIG_DEBUG_FS)
+
+struct fsl_ssi_dbg {
+	struct dentry *dbg_dir;
+
+	struct {
+		unsigned int rfrc;
+		unsigned int tfrc;
+		unsigned int cmdau;
+		unsigned int cmddu;
+		unsigned int rxt;
+		unsigned int rdr1;
+		unsigned int rdr0;
+		unsigned int tde1;
+		unsigned int tde0;
+		unsigned int roe1;
+		unsigned int roe0;
+		unsigned int tue1;
+		unsigned int tue0;
+		unsigned int tfs;
+		unsigned int rfs;
+		unsigned int tls;
+		unsigned int rls;
+		unsigned int rff1;
+		unsigned int rff0;
+		unsigned int tfe1;
+		unsigned int tfe0;
+	} stats;
+};
+
+void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *ssi_dbg, u32 sisr);
+
+void fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev);
+
+void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg);
+
+#else
+
+struct fsl_ssi_dbg {
+};
+
+static inline void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *stats, u32 sisr)
+{
+}
+
+static inline void fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg,
+					  struct device *dev)
+{
+}
+
+static inline void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg)
+{
+}
+#endif  /* ! IS_ENABLED(CONFIG_DEBUG_FS) */
+
+#endif
diff --git a/sound/soc/fsl/fsl_ssi_dbg.c b/sound/soc/fsl/fsl_ssi_dbg.c
new file mode 100644
index 000000000..2c46c55f0
--- /dev/null
+++ b/sound/soc/fsl/fsl_ssi_dbg.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale SSI ALSA SoC Digital Audio Interface (DAI) debugging functions
+//
+// Copyright 2014 Markus Pargmann <mpa@pengutronix.de>, Pengutronix
+//
+// Split from fsl_ssi.c
+
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
+
+#include "fsl_ssi.h"
+
+void fsl_ssi_dbg_isr(struct fsl_ssi_dbg *dbg, u32 sisr)
+{
+	if (sisr & SSI_SISR_RFRC)
+		dbg->stats.rfrc++;
+
+	if (sisr & SSI_SISR_TFRC)
+		dbg->stats.tfrc++;
+
+	if (sisr & SSI_SISR_CMDAU)
+		dbg->stats.cmdau++;
+
+	if (sisr & SSI_SISR_CMDDU)
+		dbg->stats.cmddu++;
+
+	if (sisr & SSI_SISR_RXT)
+		dbg->stats.rxt++;
+
+	if (sisr & SSI_SISR_RDR1)
+		dbg->stats.rdr1++;
+
+	if (sisr & SSI_SISR_RDR0)
+		dbg->stats.rdr0++;
+
+	if (sisr & SSI_SISR_TDE1)
+		dbg->stats.tde1++;
+
+	if (sisr & SSI_SISR_TDE0)
+		dbg->stats.tde0++;
+
+	if (sisr & SSI_SISR_ROE1)
+		dbg->stats.roe1++;
+
+	if (sisr & SSI_SISR_ROE0)
+		dbg->stats.roe0++;
+
+	if (sisr & SSI_SISR_TUE1)
+		dbg->stats.tue1++;
+
+	if (sisr & SSI_SISR_TUE0)
+		dbg->stats.tue0++;
+
+	if (sisr & SSI_SISR_TFS)
+		dbg->stats.tfs++;
+
+	if (sisr & SSI_SISR_RFS)
+		dbg->stats.rfs++;
+
+	if (sisr & SSI_SISR_TLS)
+		dbg->stats.tls++;
+
+	if (sisr & SSI_SISR_RLS)
+		dbg->stats.rls++;
+
+	if (sisr & SSI_SISR_RFF1)
+		dbg->stats.rff1++;
+
+	if (sisr & SSI_SISR_RFF0)
+		dbg->stats.rff0++;
+
+	if (sisr & SSI_SISR_TFE1)
+		dbg->stats.tfe1++;
+
+	if (sisr & SSI_SISR_TFE0)
+		dbg->stats.tfe0++;
+}
+
+/*
+ * Show the statistics of a flag only if its interrupt is enabled
+ *
+ * Compilers will optimize it to a no-op if the interrupt is disabled
+ */
+#define SIER_SHOW(flag, name) \
+	do { \
+		if (SSI_SIER_##flag) \
+			seq_printf(s, #name "=%u\n", ssi_dbg->stats.name); \
+	} while (0)
+
+
+/*
+ * Display the statistics for the current SSI device
+ *
+ * To avoid confusion, only show those counts that are enabled
+ */
+static int fsl_ssi_stats_show(struct seq_file *s, void *unused)
+{
+	struct fsl_ssi_dbg *ssi_dbg = s->private;
+
+	SIER_SHOW(RFRC_EN, rfrc);
+	SIER_SHOW(TFRC_EN, tfrc);
+	SIER_SHOW(CMDAU_EN, cmdau);
+	SIER_SHOW(CMDDU_EN, cmddu);
+	SIER_SHOW(RXT_EN, rxt);
+	SIER_SHOW(RDR1_EN, rdr1);
+	SIER_SHOW(RDR0_EN, rdr0);
+	SIER_SHOW(TDE1_EN, tde1);
+	SIER_SHOW(TDE0_EN, tde0);
+	SIER_SHOW(ROE1_EN, roe1);
+	SIER_SHOW(ROE0_EN, roe0);
+	SIER_SHOW(TUE1_EN, tue1);
+	SIER_SHOW(TUE0_EN, tue0);
+	SIER_SHOW(TFS_EN, tfs);
+	SIER_SHOW(RFS_EN, rfs);
+	SIER_SHOW(TLS_EN, tls);
+	SIER_SHOW(RLS_EN, rls);
+	SIER_SHOW(RFF1_EN, rff1);
+	SIER_SHOW(RFF0_EN, rff0);
+	SIER_SHOW(TFE1_EN, tfe1);
+	SIER_SHOW(TFE0_EN, tfe0);
+
+	return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(fsl_ssi_stats);
+
+void fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev)
+{
+	ssi_dbg->dbg_dir = debugfs_create_dir(dev_name(dev), NULL);
+
+	debugfs_create_file("stats", 0444, ssi_dbg->dbg_dir, ssi_dbg,
+			    &fsl_ssi_stats_fops);
+}
+
+void fsl_ssi_debugfs_remove(struct fsl_ssi_dbg *ssi_dbg)
+{
+	debugfs_remove_recursive(ssi_dbg->dbg_dir);
+}
diff --git a/sound/soc/fsl/fsl_utils.c b/sound/soc/fsl/fsl_utils.c
new file mode 100644
index 000000000..a5ab27c2f
--- /dev/null
+++ b/sound/soc/fsl/fsl_utils.c
@@ -0,0 +1,157 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale ALSA SoC Machine driver utility
+//
+// Author: Timur Tabi <timur@freescale.com>
+//
+// Copyright 2010 Freescale Semiconductor, Inc.
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <sound/soc.h>
+
+#include "fsl_utils.h"
+
+/**
+ * fsl_asoc_get_dma_channel - determine the dma channel for a SSI node
+ *
+ * @ssi_np: pointer to the SSI device tree node
+ * @name: name of the phandle pointing to the dma channel
+ * @dai: ASoC DAI link pointer to be filled with platform_name
+ * @dma_channel_id: dma channel id to be returned
+ * @dma_id: dma id to be returned
+ *
+ * This function determines the dma and channel id for given SSI node.  It
+ * also discovers the platform_name for the ASoC DAI link.
+ */
+int fsl_asoc_get_dma_channel(struct device_node *ssi_np,
+			     const char *name,
+			     struct snd_soc_dai_link *dai,
+			     unsigned int *dma_channel_id,
+			     unsigned int *dma_id)
+{
+	struct resource res;
+	struct device_node *dma_channel_np, *dma_np;
+	const __be32 *iprop;
+	int ret;
+
+	dma_channel_np = of_parse_phandle(ssi_np, name, 0);
+	if (!dma_channel_np)
+		return -EINVAL;
+
+	if (!of_device_is_compatible(dma_channel_np, "fsl,ssi-dma-channel")) {
+		of_node_put(dma_channel_np);
+		return -EINVAL;
+	}
+
+	/* Determine the dev_name for the device_node.  This code mimics the
+	 * behavior of of_device_make_bus_id(). We need this because ASoC uses
+	 * the dev_name() of the device to match the platform (DMA) device with
+	 * the CPU (SSI) device.  It's all ugly and hackish, but it works (for
+	 * now).
+	 *
+	 * dai->platform name should already point to an allocated buffer.
+	 */
+	ret = of_address_to_resource(dma_channel_np, 0, &res);
+	if (ret) {
+		of_node_put(dma_channel_np);
+		return ret;
+	}
+	snprintf((char *)dai->platforms->name, DAI_NAME_SIZE, "%llx.%pOFn",
+		 (unsigned long long) res.start, dma_channel_np);
+
+	iprop = of_get_property(dma_channel_np, "cell-index", NULL);
+	if (!iprop) {
+		of_node_put(dma_channel_np);
+		return -EINVAL;
+	}
+	*dma_channel_id = be32_to_cpup(iprop);
+
+	dma_np = of_get_parent(dma_channel_np);
+	iprop = of_get_property(dma_np, "cell-index", NULL);
+	if (!iprop) {
+		of_node_put(dma_np);
+		of_node_put(dma_channel_np);
+		return -EINVAL;
+	}
+	*dma_id = be32_to_cpup(iprop);
+
+	of_node_put(dma_np);
+	of_node_put(dma_channel_np);
+
+	return 0;
+}
+EXPORT_SYMBOL(fsl_asoc_get_dma_channel);
+
+/**
+ * fsl_asoc_get_pll_clocks - get two PLL clock source
+ *
+ * @dev: device pointer
+ * @pll8k_clk: PLL clock pointer for 8kHz
+ * @pll11k_clk: PLL clock pointer for 11kHz
+ *
+ * This function get two PLL clock source
+ */
+void fsl_asoc_get_pll_clocks(struct device *dev, struct clk **pll8k_clk,
+			     struct clk **pll11k_clk)
+{
+	*pll8k_clk = devm_clk_get(dev, "pll8k");
+	if (IS_ERR(*pll8k_clk))
+		*pll8k_clk = NULL;
+
+	*pll11k_clk = devm_clk_get(dev, "pll11k");
+	if (IS_ERR(*pll11k_clk))
+		*pll11k_clk = NULL;
+}
+EXPORT_SYMBOL(fsl_asoc_get_pll_clocks);
+
+/**
+ * fsl_asoc_reparent_pll_clocks - set clock parent if necessary
+ *
+ * @dev: device pointer
+ * @clk: root clock pointer
+ * @pll8k_clk: PLL clock pointer for 8kHz
+ * @pll11k_clk: PLL clock pointer for 11kHz
+ * @ratio: target requency for root clock
+ *
+ * This function set root clock parent according to the target ratio
+ */
+void fsl_asoc_reparent_pll_clocks(struct device *dev, struct clk *clk,
+				  struct clk *pll8k_clk,
+				  struct clk *pll11k_clk, u64 ratio)
+{
+	struct clk *p, *pll = NULL, *npll = NULL;
+	bool reparent = false;
+	int ret;
+
+	if (!clk || !pll8k_clk || !pll11k_clk)
+		return;
+
+	p = clk;
+	while (p && pll8k_clk && pll11k_clk) {
+		struct clk *pp = clk_get_parent(p);
+
+		if (clk_is_match(pp, pll8k_clk) ||
+		    clk_is_match(pp, pll11k_clk)) {
+			pll = pp;
+			break;
+		}
+		p = pp;
+	}
+
+	npll = (do_div(ratio, 8000) ? pll11k_clk : pll8k_clk);
+	reparent = (pll && !clk_is_match(pll, npll));
+
+	if (reparent) {
+		ret = clk_set_parent(p, npll);
+		if (ret < 0)
+			dev_warn(dev, "failed to set parent:%d\n", ret);
+	}
+}
+EXPORT_SYMBOL(fsl_asoc_reparent_pll_clocks);
+
+MODULE_AUTHOR("Timur Tabi <timur@freescale.com>");
+MODULE_DESCRIPTION("Freescale ASoC utility code");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/fsl_utils.h b/sound/soc/fsl/fsl_utils.h
new file mode 100644
index 000000000..4d5f3d93b
--- /dev/null
+++ b/sound/soc/fsl/fsl_utils.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Freescale ALSA SoC Machine driver utility
+ *
+ * Author: Timur Tabi <timur@freescale.com>
+ *
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ */
+
+#ifndef _FSL_UTILS_H
+#define _FSL_UTILS_H
+
+#define DAI_NAME_SIZE	32
+
+struct snd_soc_dai_link;
+struct device_node;
+
+int fsl_asoc_get_dma_channel(struct device_node *ssi_np, const char *name,
+			     struct snd_soc_dai_link *dai,
+			     unsigned int *dma_channel_id,
+			     unsigned int *dma_id);
+
+void fsl_asoc_get_pll_clocks(struct device *dev, struct clk **pll8k_clk,
+			     struct clk **pll11k_clk);
+
+void fsl_asoc_reparent_pll_clocks(struct device *dev, struct clk *clk,
+				  struct clk *pll8k_clk,
+				  struct clk *pll11k_clk, u64 ratio);
+#endif /* _FSL_UTILS_H */
diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
new file mode 100644
index 000000000..c043efe45
--- /dev/null
+++ b/sound/soc/fsl/fsl_xcvr.c
@@ -0,0 +1,1388 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright 2019 NXP
+
+#include <linux/bitrev.h>
+#include <linux/clk.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_iec958.h>
+#include <sound/pcm_params.h>
+
+#include "fsl_xcvr.h"
+#include "imx-pcm.h"
+
+#define FSL_XCVR_CAPDS_SIZE	256
+
+struct fsl_xcvr_soc_data {
+	const char *fw_name;
+};
+
+struct fsl_xcvr {
+	const struct fsl_xcvr_soc_data *soc_data;
+	struct platform_device *pdev;
+	struct regmap *regmap;
+	struct clk *ipg_clk;
+	struct clk *pll_ipg_clk;
+	struct clk *phy_clk;
+	struct clk *spba_clk;
+	struct reset_control *reset;
+	u8 streams;
+	u32 mode;
+	u32 arc_mode;
+	void __iomem *ram_addr;
+	struct snd_dmaengine_dai_dma_data dma_prms_rx;
+	struct snd_dmaengine_dai_dma_data dma_prms_tx;
+	struct snd_aes_iec958 rx_iec958;
+	struct snd_aes_iec958 tx_iec958;
+	u8 cap_ds[FSL_XCVR_CAPDS_SIZE];
+};
+
+static const struct fsl_xcvr_pll_conf {
+	u8 mfi;   /* min=0x18, max=0x38 */
+	u32 mfn;  /* signed int, 2's compl., min=0x3FFF0000, max=0x00010000 */
+	u32 mfd;  /* unsigned int */
+	u32 fout; /* Fout = Fref*(MFI + MFN/MFD), Fref is 24MHz */
+} fsl_xcvr_pll_cfg[] = {
+	{ .mfi = 54, .mfn = 1,  .mfd = 6,   .fout = 1300000000, }, /* 1.3 GHz */
+	{ .mfi = 32, .mfn = 96, .mfd = 125, .fout = 786432000, },  /* 8000 Hz */
+	{ .mfi = 30, .mfn = 66, .mfd = 625, .fout = 722534400, },  /* 11025 Hz */
+	{ .mfi = 29, .mfn = 1,  .mfd = 6,   .fout = 700000000, },  /* 700 MHz */
+};
+
+/*
+ * HDMI2.1 spec defines 6- and 12-channels layout for one bit audio
+ * stream. Todo: to check how this case can be considered below
+ */
+static const u32 fsl_xcvr_earc_channels[] = { 1, 2, 8, 16, 32, };
+static const struct snd_pcm_hw_constraint_list fsl_xcvr_earc_channels_constr = {
+	.count = ARRAY_SIZE(fsl_xcvr_earc_channels),
+	.list = fsl_xcvr_earc_channels,
+};
+
+static const u32 fsl_xcvr_earc_rates[] = {
+	32000, 44100, 48000, 64000, 88200, 96000,
+	128000, 176400, 192000, 256000, 352800, 384000,
+	512000, 705600, 768000, 1024000, 1411200, 1536000,
+};
+static const struct snd_pcm_hw_constraint_list fsl_xcvr_earc_rates_constr = {
+	.count = ARRAY_SIZE(fsl_xcvr_earc_rates),
+	.list = fsl_xcvr_earc_rates,
+};
+
+static const u32 fsl_xcvr_spdif_channels[] = { 2, };
+static const struct snd_pcm_hw_constraint_list fsl_xcvr_spdif_channels_constr = {
+	.count = ARRAY_SIZE(fsl_xcvr_spdif_channels),
+	.list = fsl_xcvr_spdif_channels,
+};
+
+static const u32 fsl_xcvr_spdif_rates[] = {
+	32000, 44100, 48000, 88200, 96000, 176400, 192000,
+};
+static const struct snd_pcm_hw_constraint_list fsl_xcvr_spdif_rates_constr = {
+	.count = ARRAY_SIZE(fsl_xcvr_spdif_rates),
+	.list = fsl_xcvr_spdif_rates,
+};
+
+static int fsl_xcvr_arc_mode_put(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int *item = ucontrol->value.enumerated.item;
+
+	xcvr->arc_mode = snd_soc_enum_item_to_val(e, item[0]);
+
+	return 0;
+}
+
+static int fsl_xcvr_arc_mode_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+
+	ucontrol->value.enumerated.item[0] = xcvr->arc_mode;
+
+	return 0;
+}
+
+static const u32 fsl_xcvr_phy_arc_cfg[] = {
+	FSL_XCVR_PHY_CTRL_ARC_MODE_SE_EN, FSL_XCVR_PHY_CTRL_ARC_MODE_CM_EN,
+};
+
+static const char * const fsl_xcvr_arc_mode[] = { "Single Ended", "Common", };
+static const struct soc_enum fsl_xcvr_arc_mode_enum =
+	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(fsl_xcvr_arc_mode), fsl_xcvr_arc_mode);
+static struct snd_kcontrol_new fsl_xcvr_arc_mode_kctl =
+	SOC_ENUM_EXT("ARC Mode", fsl_xcvr_arc_mode_enum,
+		     fsl_xcvr_arc_mode_get, fsl_xcvr_arc_mode_put);
+
+/* Capabilities data structure, bytes */
+static int fsl_xcvr_type_capds_bytes_info(struct snd_kcontrol *kcontrol,
+					  struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+	uinfo->count = FSL_XCVR_CAPDS_SIZE;
+
+	return 0;
+}
+
+static int fsl_xcvr_capds_get(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+
+	memcpy(ucontrol->value.bytes.data, xcvr->cap_ds, FSL_XCVR_CAPDS_SIZE);
+
+	return 0;
+}
+
+static int fsl_xcvr_capds_put(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+
+	memcpy(xcvr->cap_ds, ucontrol->value.bytes.data, FSL_XCVR_CAPDS_SIZE);
+
+	return 0;
+}
+
+static struct snd_kcontrol_new fsl_xcvr_earc_capds_kctl = {
+	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+	.name = "Capabilities Data Structure",
+	.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+	.info = fsl_xcvr_type_capds_bytes_info,
+	.get = fsl_xcvr_capds_get,
+	.put = fsl_xcvr_capds_put,
+};
+
+static int fsl_xcvr_activate_ctl(struct snd_soc_dai *dai, const char *name,
+				 bool active)
+{
+	struct snd_soc_card *card = dai->component->card;
+	struct snd_kcontrol *kctl;
+	bool enabled;
+
+	kctl = snd_soc_card_get_kcontrol(card, name);
+	if (kctl == NULL)
+		return -ENOENT;
+
+	enabled = ((kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_WRITE) != 0);
+	if (active == enabled)
+		return 0; /* nothing to do */
+
+	if (active)
+		kctl->vd[0].access |=  SNDRV_CTL_ELEM_ACCESS_WRITE;
+	else
+		kctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_WRITE;
+
+	snd_ctl_notify(card->snd_card, SNDRV_CTL_EVENT_MASK_INFO, &kctl->id);
+
+	return 1;
+}
+
+static int fsl_xcvr_mode_put(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int *item = ucontrol->value.enumerated.item;
+	struct snd_soc_card *card = dai->component->card;
+	struct snd_soc_pcm_runtime *rtd;
+
+	xcvr->mode = snd_soc_enum_item_to_val(e, item[0]);
+
+	fsl_xcvr_activate_ctl(dai, fsl_xcvr_arc_mode_kctl.name,
+			      (xcvr->mode == FSL_XCVR_MODE_ARC));
+	fsl_xcvr_activate_ctl(dai, fsl_xcvr_earc_capds_kctl.name,
+			      (xcvr->mode == FSL_XCVR_MODE_EARC));
+	/* Allow playback for SPDIF only */
+	rtd = snd_soc_get_pcm_runtime(card, card->dai_link);
+	rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream_count =
+		(xcvr->mode == FSL_XCVR_MODE_SPDIF ? 1 : 0);
+	return 0;
+}
+
+static int fsl_xcvr_mode_get(struct snd_kcontrol *kcontrol,
+			     struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+
+	ucontrol->value.enumerated.item[0] = xcvr->mode;
+
+	return 0;
+}
+
+static const char * const fsl_xcvr_mode[] = { "SPDIF", "ARC RX", "eARC", };
+static const struct soc_enum fsl_xcvr_mode_enum =
+	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(fsl_xcvr_mode), fsl_xcvr_mode);
+static struct snd_kcontrol_new fsl_xcvr_mode_kctl =
+	SOC_ENUM_EXT("XCVR Mode", fsl_xcvr_mode_enum,
+		     fsl_xcvr_mode_get, fsl_xcvr_mode_put);
+
+/** phy: true => phy, false => pll */
+static int fsl_xcvr_ai_write(struct fsl_xcvr *xcvr, u8 reg, u32 data, bool phy)
+{
+	struct device *dev = &xcvr->pdev->dev;
+	u32 val, idx, tidx;
+	int ret;
+
+	idx  = BIT(phy ? 26 : 24);
+	tidx = BIT(phy ? 27 : 25);
+
+	regmap_write(xcvr->regmap, FSL_XCVR_PHY_AI_CTRL_CLR, 0xFF);
+	regmap_write(xcvr->regmap, FSL_XCVR_PHY_AI_CTRL_SET, reg);
+	regmap_write(xcvr->regmap, FSL_XCVR_PHY_AI_WDATA, data);
+	regmap_write(xcvr->regmap, FSL_XCVR_PHY_AI_CTRL_TOG, idx);
+
+	ret = regmap_read_poll_timeout(xcvr->regmap, FSL_XCVR_PHY_AI_CTRL, val,
+				       (val & idx) == ((val & tidx) >> 1),
+				       10, 10000);
+	if (ret)
+		dev_err(dev, "AI timeout: failed to set %s reg 0x%02x=0x%08x\n",
+			phy ? "PHY" : "PLL", reg, data);
+	return ret;
+}
+
+static int fsl_xcvr_en_phy_pll(struct fsl_xcvr *xcvr, u32 freq, bool tx)
+{
+	struct device *dev = &xcvr->pdev->dev;
+	u32 i, div = 0, log2;
+	int ret;
+
+	for (i = 0; i < ARRAY_SIZE(fsl_xcvr_pll_cfg); i++) {
+		if (fsl_xcvr_pll_cfg[i].fout % freq == 0) {
+			div = fsl_xcvr_pll_cfg[i].fout / freq;
+			break;
+		}
+	}
+
+	if (!div || i >= ARRAY_SIZE(fsl_xcvr_pll_cfg))
+		return -EINVAL;
+
+	log2 = ilog2(div);
+
+	/* Release AI interface from reset */
+	ret = regmap_write(xcvr->regmap, FSL_XCVR_PHY_AI_CTRL_SET,
+			   FSL_XCVR_PHY_AI_CTRL_AI_RESETN);
+	if (ret < 0) {
+		dev_err(dev, "Error while setting IER0: %d\n", ret);
+		return ret;
+	}
+
+	/* PLL: BANDGAP_SET: EN_VBG (enable bandgap) */
+	fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_BANDGAP_SET,
+			  FSL_XCVR_PLL_BANDGAP_EN_VBG, 0);
+
+	/* PLL: CTRL0: DIV_INTEGER */
+	fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0, fsl_xcvr_pll_cfg[i].mfi, 0);
+	/* PLL: NUMERATOR: MFN */
+	fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_NUM, fsl_xcvr_pll_cfg[i].mfn, 0);
+	/* PLL: DENOMINATOR: MFD */
+	fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_DEN, fsl_xcvr_pll_cfg[i].mfd, 0);
+	/* PLL: CTRL0_SET: HOLD_RING_OFF, POWER_UP */
+	fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET,
+			  FSL_XCVR_PLL_CTRL0_HROFF | FSL_XCVR_PLL_CTRL0_PWP, 0);
+	udelay(25);
+	/* PLL: CTRL0: Clear Hold Ring Off */
+	fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_CLR,
+			  FSL_XCVR_PLL_CTRL0_HROFF, 0);
+	udelay(100);
+	if (tx) { /* TX is enabled for SPDIF only */
+		/* PLL: POSTDIV: PDIV0 */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_PDIV,
+				  FSL_XCVR_PLL_PDIVx(log2, 0), 0);
+		/* PLL: CTRL_SET: CLKMUX0_EN */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET,
+				  FSL_XCVR_PLL_CTRL0_CM0_EN, 0);
+	} else if (xcvr->mode == FSL_XCVR_MODE_EARC) { /* eARC RX */
+		/* PLL: POSTDIV: PDIV1 */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_PDIV,
+				  FSL_XCVR_PLL_PDIVx(log2, 1), 0);
+		/* PLL: CTRL_SET: CLKMUX1_EN */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET,
+				  FSL_XCVR_PLL_CTRL0_CM1_EN, 0);
+	} else { /* SPDIF / ARC RX */
+		/* PLL: POSTDIV: PDIV2 */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_PDIV,
+				  FSL_XCVR_PLL_PDIVx(log2, 2), 0);
+		/* PLL: CTRL_SET: CLKMUX2_EN */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PLL_CTRL0_SET,
+				  FSL_XCVR_PLL_CTRL0_CM2_EN, 0);
+	}
+
+	if (xcvr->mode == FSL_XCVR_MODE_EARC) { /* eARC mode */
+		/* PHY: CTRL_SET: TX_DIFF_OE, PHY_EN */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PHY_CTRL_SET,
+				  FSL_XCVR_PHY_CTRL_TSDIFF_OE |
+				  FSL_XCVR_PHY_CTRL_PHY_EN, 1);
+		/* PHY: CTRL2_SET: EARC_TX_MODE */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PHY_CTRL2_SET,
+				  FSL_XCVR_PHY_CTRL2_EARC_TXMS, 1);
+	} else if (!tx) { /* SPDIF / ARC RX mode */
+		if (xcvr->mode == FSL_XCVR_MODE_SPDIF)
+			/* PHY: CTRL_SET: SPDIF_EN */
+			fsl_xcvr_ai_write(xcvr, FSL_XCVR_PHY_CTRL_SET,
+					  FSL_XCVR_PHY_CTRL_SPDIF_EN, 1);
+		else	/* PHY: CTRL_SET: ARC RX setup */
+			fsl_xcvr_ai_write(xcvr, FSL_XCVR_PHY_CTRL_SET,
+					  FSL_XCVR_PHY_CTRL_PHY_EN |
+					  FSL_XCVR_PHY_CTRL_RX_CM_EN |
+					  fsl_xcvr_phy_arc_cfg[xcvr->arc_mode], 1);
+	}
+
+	dev_dbg(dev, "PLL Fexp: %u, Fout: %u, mfi: %u, mfn: %u, mfd: %d, div: %u, pdiv0: %u\n",
+		freq, fsl_xcvr_pll_cfg[i].fout, fsl_xcvr_pll_cfg[i].mfi,
+		fsl_xcvr_pll_cfg[i].mfn, fsl_xcvr_pll_cfg[i].mfd, div, log2);
+	return 0;
+}
+
+static int fsl_xcvr_en_aud_pll(struct fsl_xcvr *xcvr, u32 freq)
+{
+	struct device *dev = &xcvr->pdev->dev;
+	int ret;
+
+	clk_disable_unprepare(xcvr->phy_clk);
+	ret = clk_set_rate(xcvr->phy_clk, freq);
+	if (ret < 0) {
+		dev_err(dev, "Error while setting AUD PLL rate: %d\n", ret);
+		return ret;
+	}
+	ret = clk_prepare_enable(xcvr->phy_clk);
+	if (ret) {
+		dev_err(dev, "failed to start PHY clock: %d\n", ret);
+		return ret;
+	}
+
+	/* Release AI interface from reset */
+	ret = regmap_write(xcvr->regmap, FSL_XCVR_PHY_AI_CTRL_SET,
+			   FSL_XCVR_PHY_AI_CTRL_AI_RESETN);
+	if (ret < 0) {
+		dev_err(dev, "Error while setting IER0: %d\n", ret);
+		return ret;
+	}
+
+	if (xcvr->mode == FSL_XCVR_MODE_EARC) { /* eARC mode */
+		/* PHY: CTRL_SET: TX_DIFF_OE, PHY_EN */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PHY_CTRL_SET,
+				  FSL_XCVR_PHY_CTRL_TSDIFF_OE |
+				  FSL_XCVR_PHY_CTRL_PHY_EN, 1);
+		/* PHY: CTRL2_SET: EARC_TX_MODE */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PHY_CTRL2_SET,
+				  FSL_XCVR_PHY_CTRL2_EARC_TXMS, 1);
+	} else { /* SPDIF mode */
+		/* PHY: CTRL_SET: TX_CLK_AUD_SS | SPDIF_EN */
+		fsl_xcvr_ai_write(xcvr, FSL_XCVR_PHY_CTRL_SET,
+				  FSL_XCVR_PHY_CTRL_TX_CLK_AUD_SS |
+				  FSL_XCVR_PHY_CTRL_SPDIF_EN, 1);
+	}
+
+	dev_dbg(dev, "PLL Fexp: %u\n", freq);
+
+	return 0;
+}
+
+#define FSL_XCVR_SPDIF_RX_FREQ	175000000
+static int fsl_xcvr_prepare(struct snd_pcm_substream *substream,
+			    struct snd_soc_dai *dai)
+{
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	u32 m_ctl = 0, v_ctl = 0;
+	u32 r = substream->runtime->rate, ch = substream->runtime->channels;
+	u32 fout = 32 * r * ch * 10 * 2;
+	int ret = 0;
+
+	switch (xcvr->mode) {
+	case FSL_XCVR_MODE_SPDIF:
+	case FSL_XCVR_MODE_ARC:
+		if (tx) {
+			ret = fsl_xcvr_en_aud_pll(xcvr, fout);
+			if (ret < 0) {
+				dev_err(dai->dev, "Failed to set TX freq %u: %d\n",
+					fout, ret);
+				return ret;
+			}
+
+			ret = regmap_write(xcvr->regmap, FSL_XCVR_TX_DPTH_CTRL_SET,
+					   FSL_XCVR_TX_DPTH_CTRL_FRM_FMT);
+			if (ret < 0) {
+				dev_err(dai->dev, "Failed to set TX_DPTH: %d\n", ret);
+				return ret;
+			}
+
+			/**
+			 * set SPDIF MODE - this flag is used to gate
+			 * SPDIF output, useless for SPDIF RX
+			 */
+			m_ctl |= FSL_XCVR_EXT_CTRL_SPDIF_MODE;
+			v_ctl |= FSL_XCVR_EXT_CTRL_SPDIF_MODE;
+		} else {
+			/**
+			 * Clear RX FIFO, flip RX FIFO bits,
+			 * disable eARC related HW mode detects
+			 */
+			ret = regmap_write(xcvr->regmap, FSL_XCVR_RX_DPTH_CTRL_SET,
+					   FSL_XCVR_RX_DPTH_CTRL_STORE_FMT |
+					   FSL_XCVR_RX_DPTH_CTRL_CLR_RX_FIFO |
+					   FSL_XCVR_RX_DPTH_CTRL_COMP |
+					   FSL_XCVR_RX_DPTH_CTRL_LAYB_CTRL);
+			if (ret < 0) {
+				dev_err(dai->dev, "Failed to set RX_DPTH: %d\n", ret);
+				return ret;
+			}
+
+			ret = fsl_xcvr_en_phy_pll(xcvr, FSL_XCVR_SPDIF_RX_FREQ, tx);
+			if (ret < 0) {
+				dev_err(dai->dev, "Failed to set RX freq %u: %d\n",
+					FSL_XCVR_SPDIF_RX_FREQ, ret);
+				return ret;
+			}
+		}
+		break;
+	case FSL_XCVR_MODE_EARC:
+		if (!tx) {
+			/** Clear RX FIFO, flip RX FIFO bits */
+			ret = regmap_write(xcvr->regmap, FSL_XCVR_RX_DPTH_CTRL_SET,
+					   FSL_XCVR_RX_DPTH_CTRL_STORE_FMT |
+					   FSL_XCVR_RX_DPTH_CTRL_CLR_RX_FIFO);
+			if (ret < 0) {
+				dev_err(dai->dev, "Failed to set RX_DPTH: %d\n", ret);
+				return ret;
+			}
+
+			/** Enable eARC related HW mode detects */
+			ret = regmap_write(xcvr->regmap, FSL_XCVR_RX_DPTH_CTRL_CLR,
+					   FSL_XCVR_RX_DPTH_CTRL_COMP |
+					   FSL_XCVR_RX_DPTH_CTRL_LAYB_CTRL);
+			if (ret < 0) {
+				dev_err(dai->dev, "Failed to clr TX_DPTH: %d\n", ret);
+				return ret;
+			}
+		}
+
+		/* clear CMDC RESET */
+		m_ctl |= FSL_XCVR_EXT_CTRL_CMDC_RESET(tx);
+		/* set TX_RX_MODE */
+		m_ctl |= FSL_XCVR_EXT_CTRL_TX_RX_MODE;
+		v_ctl |= (tx ? FSL_XCVR_EXT_CTRL_TX_RX_MODE : 0);
+		break;
+	}
+
+	ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_IER0,
+				 FSL_XCVR_IRQ_EARC_ALL, FSL_XCVR_IRQ_EARC_ALL);
+	if (ret < 0) {
+		dev_err(dai->dev, "Error while setting IER0: %d\n", ret);
+		return ret;
+	}
+
+	/* set DPATH RESET */
+	m_ctl |= FSL_XCVR_EXT_CTRL_DPTH_RESET(tx);
+	v_ctl |= FSL_XCVR_EXT_CTRL_DPTH_RESET(tx);
+	ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL, m_ctl, v_ctl);
+	if (ret < 0) {
+		dev_err(dai->dev, "Error while setting EXT_CTRL: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int fsl_xcvr_constr(const struct snd_pcm_substream *substream,
+			   const struct snd_pcm_hw_constraint_list *channels,
+			   const struct snd_pcm_hw_constraint_list *rates)
+{
+	struct snd_pcm_runtime *rt = substream->runtime;
+	int ret;
+
+	ret = snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+					 channels);
+	if (ret < 0)
+		return ret;
+
+	ret = snd_pcm_hw_constraint_list(rt, 0, SNDRV_PCM_HW_PARAM_RATE,
+					 rates);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int fsl_xcvr_startup(struct snd_pcm_substream *substream,
+			    struct snd_soc_dai *dai)
+{
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	int ret = 0;
+
+	if (xcvr->streams & BIT(substream->stream)) {
+		dev_err(dai->dev, "%sX busy\n", tx ? "T" : "R");
+		return -EBUSY;
+	}
+
+	switch (xcvr->mode) {
+	case FSL_XCVR_MODE_SPDIF:
+	case FSL_XCVR_MODE_ARC:
+		ret = fsl_xcvr_constr(substream, &fsl_xcvr_spdif_channels_constr,
+				      &fsl_xcvr_spdif_rates_constr);
+		break;
+	case FSL_XCVR_MODE_EARC:
+		ret = fsl_xcvr_constr(substream, &fsl_xcvr_earc_channels_constr,
+				      &fsl_xcvr_earc_rates_constr);
+		break;
+	}
+	if (ret < 0)
+		return ret;
+
+	xcvr->streams |= BIT(substream->stream);
+
+	/* Disable XCVR controls if there is stream started */
+	fsl_xcvr_activate_ctl(dai, fsl_xcvr_mode_kctl.name, false);
+	fsl_xcvr_activate_ctl(dai, fsl_xcvr_arc_mode_kctl.name, false);
+	fsl_xcvr_activate_ctl(dai, fsl_xcvr_earc_capds_kctl.name, false);
+
+	return 0;
+}
+
+static void fsl_xcvr_shutdown(struct snd_pcm_substream *substream,
+			      struct snd_soc_dai *dai)
+{
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	u32 mask = 0, val = 0;
+	int ret;
+
+	xcvr->streams &= ~BIT(substream->stream);
+
+	/* Enable XCVR controls if there is no stream started */
+	if (!xcvr->streams) {
+		fsl_xcvr_activate_ctl(dai, fsl_xcvr_mode_kctl.name, true);
+		fsl_xcvr_activate_ctl(dai, fsl_xcvr_arc_mode_kctl.name,
+				      (xcvr->mode == FSL_XCVR_MODE_ARC));
+		fsl_xcvr_activate_ctl(dai, fsl_xcvr_earc_capds_kctl.name,
+				      (xcvr->mode == FSL_XCVR_MODE_EARC));
+
+		ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_IER0,
+					 FSL_XCVR_IRQ_EARC_ALL, 0);
+		if (ret < 0) {
+			dev_err(dai->dev, "Failed to set IER0: %d\n", ret);
+			return;
+		}
+
+		/* clear SPDIF MODE */
+		if (xcvr->mode == FSL_XCVR_MODE_SPDIF)
+			mask |= FSL_XCVR_EXT_CTRL_SPDIF_MODE;
+	}
+
+	if (xcvr->mode == FSL_XCVR_MODE_EARC) {
+		/* set CMDC RESET */
+		mask |= FSL_XCVR_EXT_CTRL_CMDC_RESET(tx);
+		val  |= FSL_XCVR_EXT_CTRL_CMDC_RESET(tx);
+	}
+
+	ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL, mask, val);
+	if (ret < 0) {
+		dev_err(dai->dev, "Err setting DPATH RESET: %d\n", ret);
+		return;
+	}
+}
+
+static int fsl_xcvr_trigger(struct snd_pcm_substream *substream, int cmd,
+			    struct snd_soc_dai *dai)
+{
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	int ret;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (tx) {
+			switch (xcvr->mode) {
+			case FSL_XCVR_MODE_EARC:
+				/* set isr_cmdc_tx_en, w1c */
+				ret = regmap_write(xcvr->regmap,
+						   FSL_XCVR_ISR_SET,
+						   FSL_XCVR_ISR_CMDC_TX_EN);
+				if (ret < 0) {
+					dev_err(dai->dev, "err updating isr %d\n", ret);
+					return ret;
+				}
+				fallthrough;
+			case FSL_XCVR_MODE_SPDIF:
+				ret = regmap_write(xcvr->regmap,
+					 FSL_XCVR_TX_DPTH_CTRL_SET,
+					 FSL_XCVR_TX_DPTH_CTRL_STRT_DATA_TX);
+				if (ret < 0) {
+					dev_err(dai->dev, "Failed to start DATA_TX: %d\n", ret);
+					return ret;
+				}
+				break;
+			}
+		}
+
+		/* enable DMA RD/WR */
+		ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL,
+					 FSL_XCVR_EXT_CTRL_DMA_DIS(tx), 0);
+		if (ret < 0) {
+			dev_err(dai->dev, "Failed to enable DMA: %d\n", ret);
+			return ret;
+		}
+
+		/* clear DPATH RESET */
+		ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL,
+					 FSL_XCVR_EXT_CTRL_DPTH_RESET(tx),
+					 0);
+		if (ret < 0) {
+			dev_err(dai->dev, "Failed to clear DPATH RESET: %d\n", ret);
+			return ret;
+		}
+
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		/* disable DMA RD/WR */
+		ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL,
+					 FSL_XCVR_EXT_CTRL_DMA_DIS(tx),
+					 FSL_XCVR_EXT_CTRL_DMA_DIS(tx));
+		if (ret < 0) {
+			dev_err(dai->dev, "Failed to disable DMA: %d\n", ret);
+			return ret;
+		}
+
+		if (tx) {
+			switch (xcvr->mode) {
+			case FSL_XCVR_MODE_SPDIF:
+				ret = regmap_write(xcvr->regmap,
+					 FSL_XCVR_TX_DPTH_CTRL_CLR,
+					 FSL_XCVR_TX_DPTH_CTRL_STRT_DATA_TX);
+				if (ret < 0) {
+					dev_err(dai->dev, "Failed to stop DATA_TX: %d\n", ret);
+					return ret;
+				}
+				fallthrough;
+			case FSL_XCVR_MODE_EARC:
+				/* clear ISR_CMDC_TX_EN, W1C */
+				ret = regmap_write(xcvr->regmap,
+						   FSL_XCVR_ISR_CLR,
+						   FSL_XCVR_ISR_CMDC_TX_EN);
+				if (ret < 0) {
+					dev_err(dai->dev,
+						"Err updating ISR %d\n", ret);
+					return ret;
+				}
+				break;
+			}
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int fsl_xcvr_load_firmware(struct fsl_xcvr *xcvr)
+{
+	struct device *dev = &xcvr->pdev->dev;
+	const struct firmware *fw;
+	int ret = 0, rem, off, out, page = 0, size = FSL_XCVR_REG_OFFSET;
+	u32 mask, val;
+
+	ret = request_firmware(&fw, xcvr->soc_data->fw_name, dev);
+	if (ret) {
+		dev_err(dev, "failed to request firmware.\n");
+		return ret;
+	}
+
+	rem = fw->size;
+
+	/* RAM is 20KiB = 16KiB code + 4KiB data => max 10 pages 2KiB each */
+	if (rem > 16384) {
+		dev_err(dev, "FW size %d is bigger than 16KiB.\n", rem);
+		release_firmware(fw);
+		return -ENOMEM;
+	}
+
+	for (page = 0; page < 10; page++) {
+		ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL,
+					 FSL_XCVR_EXT_CTRL_PAGE_MASK,
+					 FSL_XCVR_EXT_CTRL_PAGE(page));
+		if (ret < 0) {
+			dev_err(dev, "FW: failed to set page %d, err=%d\n",
+				page, ret);
+			goto err_firmware;
+		}
+
+		off = page * size;
+		out = min(rem, size);
+		/* IPG clock is assumed to be running, otherwise it will hang */
+		if (out > 0) {
+			/* write firmware into code memory */
+			memcpy_toio(xcvr->ram_addr, fw->data + off, out);
+			rem -= out;
+			if (rem == 0) {
+				/* last part of firmware written */
+				/* clean remaining part of code memory page */
+				memset_io(xcvr->ram_addr + out, 0, size - out);
+			}
+		} else {
+			/* clean current page, including data memory */
+			memset_io(xcvr->ram_addr, 0, size);
+		}
+	}
+
+err_firmware:
+	release_firmware(fw);
+	if (ret < 0)
+		return ret;
+
+	/* configure watermarks */
+	mask = FSL_XCVR_EXT_CTRL_RX_FWM_MASK | FSL_XCVR_EXT_CTRL_TX_FWM_MASK;
+	val  = FSL_XCVR_EXT_CTRL_RX_FWM(FSL_XCVR_FIFO_WMK_RX);
+	val |= FSL_XCVR_EXT_CTRL_TX_FWM(FSL_XCVR_FIFO_WMK_TX);
+	/* disable DMA RD/WR */
+	mask |= FSL_XCVR_EXT_CTRL_DMA_RD_DIS | FSL_XCVR_EXT_CTRL_DMA_WR_DIS;
+	val  |= FSL_XCVR_EXT_CTRL_DMA_RD_DIS | FSL_XCVR_EXT_CTRL_DMA_WR_DIS;
+	/* Data RAM is 4KiB, last two pages: 8 and 9. Select page 8. */
+	mask |= FSL_XCVR_EXT_CTRL_PAGE_MASK;
+	val  |= FSL_XCVR_EXT_CTRL_PAGE(8);
+
+	ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL, mask, val);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set watermarks: %d\n", ret);
+		return ret;
+	}
+
+	/* Store Capabilities Data Structure into Data RAM */
+	memcpy_toio(xcvr->ram_addr + FSL_XCVR_CAP_DATA_STR, xcvr->cap_ds,
+		    FSL_XCVR_CAPDS_SIZE);
+	return 0;
+}
+
+static int fsl_xcvr_type_iec958_info(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+
+	return 0;
+}
+
+static int fsl_xcvr_type_iec958_bytes_info(struct snd_kcontrol *kcontrol,
+					   struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
+	uinfo->count = sizeof_field(struct snd_aes_iec958, status);
+
+	return 0;
+}
+
+static int fsl_xcvr_rx_cs_get(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+
+	memcpy(ucontrol->value.iec958.status, xcvr->rx_iec958.status, 24);
+
+	return 0;
+}
+
+static int fsl_xcvr_tx_cs_get(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+
+	memcpy(ucontrol->value.iec958.status, xcvr->tx_iec958.status, 24);
+
+	return 0;
+}
+
+static int fsl_xcvr_tx_cs_put(struct snd_kcontrol *kcontrol,
+			      struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+
+	memcpy(xcvr->tx_iec958.status, ucontrol->value.iec958.status, 24);
+
+	return 0;
+}
+
+static struct snd_kcontrol_new fsl_xcvr_rx_ctls[] = {
+	/* Channel status controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+		.info = fsl_xcvr_type_iec958_info,
+		.get = fsl_xcvr_rx_cs_get,
+	},
+	/* Capture channel status, bytes */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "Capture Channel Status",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+		.info = fsl_xcvr_type_iec958_bytes_info,
+		.get = fsl_xcvr_rx_cs_get,
+	},
+};
+
+static struct snd_kcontrol_new fsl_xcvr_tx_ctls[] = {
+	/* Channel status controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+		.info = fsl_xcvr_type_iec958_info,
+		.get = fsl_xcvr_tx_cs_get,
+		.put = fsl_xcvr_tx_cs_put,
+	},
+	/* Playback channel status, bytes */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "Playback Channel Status",
+		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+		.info = fsl_xcvr_type_iec958_bytes_info,
+		.get = fsl_xcvr_tx_cs_get,
+		.put = fsl_xcvr_tx_cs_put,
+	},
+};
+
+static const struct snd_soc_dai_ops fsl_xcvr_dai_ops = {
+	.prepare = fsl_xcvr_prepare,
+	.startup = fsl_xcvr_startup,
+	.shutdown = fsl_xcvr_shutdown,
+	.trigger = fsl_xcvr_trigger,
+};
+
+static int fsl_xcvr_dai_probe(struct snd_soc_dai *dai)
+{
+	struct fsl_xcvr *xcvr = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &xcvr->dma_prms_tx, &xcvr->dma_prms_rx);
+
+	snd_soc_add_dai_controls(dai, &fsl_xcvr_mode_kctl, 1);
+	snd_soc_add_dai_controls(dai, &fsl_xcvr_arc_mode_kctl, 1);
+	snd_soc_add_dai_controls(dai, &fsl_xcvr_earc_capds_kctl, 1);
+	snd_soc_add_dai_controls(dai, fsl_xcvr_tx_ctls,
+				 ARRAY_SIZE(fsl_xcvr_tx_ctls));
+	snd_soc_add_dai_controls(dai, fsl_xcvr_rx_ctls,
+				 ARRAY_SIZE(fsl_xcvr_rx_ctls));
+	return 0;
+}
+
+static struct snd_soc_dai_driver fsl_xcvr_dai = {
+	.probe  = fsl_xcvr_dai_probe,
+	.ops = &fsl_xcvr_dai_ops,
+	.playback = {
+		.stream_name = "CPU-Playback",
+		.channels_min = 1,
+		.channels_max = 32,
+		.rate_min = 32000,
+		.rate_max = 1536000,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE,
+	},
+	.capture = {
+		.stream_name = "CPU-Capture",
+		.channels_min = 1,
+		.channels_max = 32,
+		.rate_min = 32000,
+		.rate_max = 1536000,
+		.rates = SNDRV_PCM_RATE_KNOT,
+		.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE,
+	},
+};
+
+static const struct snd_soc_component_driver fsl_xcvr_comp = {
+	.name			= "fsl-xcvr-dai",
+	.legacy_dai_naming	= 1,
+};
+
+static const struct reg_default fsl_xcvr_reg_defaults[] = {
+	{ FSL_XCVR_VERSION,	0x00000000 },
+	{ FSL_XCVR_EXT_CTRL,	0xF8204040 },
+	{ FSL_XCVR_EXT_STATUS,	0x00000000 },
+	{ FSL_XCVR_EXT_IER0,	0x00000000 },
+	{ FSL_XCVR_EXT_IER1,	0x00000000 },
+	{ FSL_XCVR_EXT_ISR,	0x00000000 },
+	{ FSL_XCVR_EXT_ISR_SET,	0x00000000 },
+	{ FSL_XCVR_EXT_ISR_CLR,	0x00000000 },
+	{ FSL_XCVR_EXT_ISR_TOG,	0x00000000 },
+	{ FSL_XCVR_IER,		0x00000000 },
+	{ FSL_XCVR_ISR,		0x00000000 },
+	{ FSL_XCVR_ISR_SET,	0x00000000 },
+	{ FSL_XCVR_ISR_CLR,	0x00000000 },
+	{ FSL_XCVR_ISR_TOG,	0x00000000 },
+	{ FSL_XCVR_RX_DPTH_CTRL,	0x00002C89 },
+	{ FSL_XCVR_RX_DPTH_CTRL_SET,	0x00002C89 },
+	{ FSL_XCVR_RX_DPTH_CTRL_CLR,	0x00002C89 },
+	{ FSL_XCVR_RX_DPTH_CTRL_TOG,	0x00002C89 },
+	{ FSL_XCVR_TX_DPTH_CTRL,	0x00000000 },
+	{ FSL_XCVR_TX_DPTH_CTRL_SET,	0x00000000 },
+	{ FSL_XCVR_TX_DPTH_CTRL_CLR,	0x00000000 },
+	{ FSL_XCVR_TX_DPTH_CTRL_TOG,	0x00000000 },
+	{ FSL_XCVR_TX_CS_DATA_0,	0x00000000 },
+	{ FSL_XCVR_TX_CS_DATA_1,	0x00000000 },
+	{ FSL_XCVR_TX_CS_DATA_2,	0x00000000 },
+	{ FSL_XCVR_TX_CS_DATA_3,	0x00000000 },
+	{ FSL_XCVR_TX_CS_DATA_4,	0x00000000 },
+	{ FSL_XCVR_TX_CS_DATA_5,	0x00000000 },
+	{ FSL_XCVR_DEBUG_REG_0,		0x00000000 },
+	{ FSL_XCVR_DEBUG_REG_1,		0x00000000 },
+};
+
+static bool fsl_xcvr_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case FSL_XCVR_VERSION:
+	case FSL_XCVR_EXT_CTRL:
+	case FSL_XCVR_EXT_STATUS:
+	case FSL_XCVR_EXT_IER0:
+	case FSL_XCVR_EXT_IER1:
+	case FSL_XCVR_EXT_ISR:
+	case FSL_XCVR_EXT_ISR_SET:
+	case FSL_XCVR_EXT_ISR_CLR:
+	case FSL_XCVR_EXT_ISR_TOG:
+	case FSL_XCVR_IER:
+	case FSL_XCVR_ISR:
+	case FSL_XCVR_ISR_SET:
+	case FSL_XCVR_ISR_CLR:
+	case FSL_XCVR_ISR_TOG:
+	case FSL_XCVR_PHY_AI_CTRL:
+	case FSL_XCVR_PHY_AI_CTRL_SET:
+	case FSL_XCVR_PHY_AI_CTRL_CLR:
+	case FSL_XCVR_PHY_AI_CTRL_TOG:
+	case FSL_XCVR_PHY_AI_RDATA:
+	case FSL_XCVR_CLK_CTRL:
+	case FSL_XCVR_RX_DPTH_CTRL:
+	case FSL_XCVR_RX_DPTH_CTRL_SET:
+	case FSL_XCVR_RX_DPTH_CTRL_CLR:
+	case FSL_XCVR_RX_DPTH_CTRL_TOG:
+	case FSL_XCVR_TX_DPTH_CTRL:
+	case FSL_XCVR_TX_DPTH_CTRL_SET:
+	case FSL_XCVR_TX_DPTH_CTRL_CLR:
+	case FSL_XCVR_TX_DPTH_CTRL_TOG:
+	case FSL_XCVR_TX_CS_DATA_0:
+	case FSL_XCVR_TX_CS_DATA_1:
+	case FSL_XCVR_TX_CS_DATA_2:
+	case FSL_XCVR_TX_CS_DATA_3:
+	case FSL_XCVR_TX_CS_DATA_4:
+	case FSL_XCVR_TX_CS_DATA_5:
+	case FSL_XCVR_DEBUG_REG_0:
+	case FSL_XCVR_DEBUG_REG_1:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_xcvr_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case FSL_XCVR_EXT_CTRL:
+	case FSL_XCVR_EXT_IER0:
+	case FSL_XCVR_EXT_IER1:
+	case FSL_XCVR_EXT_ISR:
+	case FSL_XCVR_EXT_ISR_SET:
+	case FSL_XCVR_EXT_ISR_CLR:
+	case FSL_XCVR_EXT_ISR_TOG:
+	case FSL_XCVR_IER:
+	case FSL_XCVR_ISR_SET:
+	case FSL_XCVR_ISR_CLR:
+	case FSL_XCVR_ISR_TOG:
+	case FSL_XCVR_PHY_AI_CTRL:
+	case FSL_XCVR_PHY_AI_CTRL_SET:
+	case FSL_XCVR_PHY_AI_CTRL_CLR:
+	case FSL_XCVR_PHY_AI_CTRL_TOG:
+	case FSL_XCVR_PHY_AI_WDATA:
+	case FSL_XCVR_CLK_CTRL:
+	case FSL_XCVR_RX_DPTH_CTRL:
+	case FSL_XCVR_RX_DPTH_CTRL_SET:
+	case FSL_XCVR_RX_DPTH_CTRL_CLR:
+	case FSL_XCVR_RX_DPTH_CTRL_TOG:
+	case FSL_XCVR_TX_DPTH_CTRL_SET:
+	case FSL_XCVR_TX_DPTH_CTRL_CLR:
+	case FSL_XCVR_TX_DPTH_CTRL_TOG:
+	case FSL_XCVR_TX_CS_DATA_0:
+	case FSL_XCVR_TX_CS_DATA_1:
+	case FSL_XCVR_TX_CS_DATA_2:
+	case FSL_XCVR_TX_CS_DATA_3:
+	case FSL_XCVR_TX_CS_DATA_4:
+	case FSL_XCVR_TX_CS_DATA_5:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool fsl_xcvr_volatile_reg(struct device *dev, unsigned int reg)
+{
+	return fsl_xcvr_readable_reg(dev, reg);
+}
+
+static const struct regmap_config fsl_xcvr_regmap_cfg = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = FSL_XCVR_MAX_REG,
+	.reg_defaults = fsl_xcvr_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(fsl_xcvr_reg_defaults),
+	.readable_reg = fsl_xcvr_readable_reg,
+	.volatile_reg = fsl_xcvr_volatile_reg,
+	.writeable_reg = fsl_xcvr_writeable_reg,
+	.cache_type = REGCACHE_FLAT,
+};
+
+static irqreturn_t irq0_isr(int irq, void *devid)
+{
+	struct fsl_xcvr *xcvr = (struct fsl_xcvr *)devid;
+	struct device *dev = &xcvr->pdev->dev;
+	struct regmap *regmap = xcvr->regmap;
+	void __iomem *reg_ctrl, *reg_buff;
+	u32 isr, isr_clr = 0, val, i;
+
+	regmap_read(regmap, FSL_XCVR_EXT_ISR, &isr);
+
+	if (isr & FSL_XCVR_IRQ_NEW_CS) {
+		dev_dbg(dev, "Received new CS block\n");
+		isr_clr |= FSL_XCVR_IRQ_NEW_CS;
+		/* Data RAM is 4KiB, last two pages: 8 and 9. Select page 8. */
+		regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL,
+				   FSL_XCVR_EXT_CTRL_PAGE_MASK,
+				   FSL_XCVR_EXT_CTRL_PAGE(8));
+
+		/* Find updated CS buffer */
+		reg_ctrl = xcvr->ram_addr + FSL_XCVR_RX_CS_CTRL_0;
+		reg_buff = xcvr->ram_addr + FSL_XCVR_RX_CS_BUFF_0;
+		memcpy_fromio(&val, reg_ctrl, sizeof(val));
+		if (!val) {
+			reg_ctrl = xcvr->ram_addr + FSL_XCVR_RX_CS_CTRL_1;
+			reg_buff = xcvr->ram_addr + FSL_XCVR_RX_CS_BUFF_1;
+			memcpy_fromio(&val, reg_ctrl, sizeof(val));
+		}
+
+		if (val) {
+			/* copy CS buffer */
+			memcpy_fromio(&xcvr->rx_iec958.status, reg_buff,
+				      sizeof(xcvr->rx_iec958.status));
+			for (i = 0; i < 6; i++) {
+				val = *(u32 *)(xcvr->rx_iec958.status + i*4);
+				*(u32 *)(xcvr->rx_iec958.status + i*4) =
+					bitrev32(val);
+			}
+			/* clear CS control register */
+			memset_io(reg_ctrl, 0, sizeof(val));
+		}
+	}
+	if (isr & FSL_XCVR_IRQ_NEW_UD) {
+		dev_dbg(dev, "Received new UD block\n");
+		isr_clr |= FSL_XCVR_IRQ_NEW_UD;
+	}
+	if (isr & FSL_XCVR_IRQ_MUTE) {
+		dev_dbg(dev, "HW mute bit detected\n");
+		isr_clr |= FSL_XCVR_IRQ_MUTE;
+	}
+	if (isr & FSL_XCVR_IRQ_FIFO_UOFL_ERR) {
+		dev_dbg(dev, "RX/TX FIFO full/empty\n");
+		isr_clr |= FSL_XCVR_IRQ_FIFO_UOFL_ERR;
+	}
+	if (isr & FSL_XCVR_IRQ_ARC_MODE) {
+		dev_dbg(dev, "CMDC SM falls out of eARC mode\n");
+		isr_clr |= FSL_XCVR_IRQ_ARC_MODE;
+	}
+	if (isr & FSL_XCVR_IRQ_DMA_RD_REQ) {
+		dev_dbg(dev, "DMA read request\n");
+		isr_clr |= FSL_XCVR_IRQ_DMA_RD_REQ;
+	}
+	if (isr & FSL_XCVR_IRQ_DMA_WR_REQ) {
+		dev_dbg(dev, "DMA write request\n");
+		isr_clr |= FSL_XCVR_IRQ_DMA_WR_REQ;
+	}
+
+	if (isr_clr) {
+		regmap_write(regmap, FSL_XCVR_EXT_ISR_CLR, isr_clr);
+		return IRQ_HANDLED;
+	}
+
+	return IRQ_NONE;
+}
+
+static const struct fsl_xcvr_soc_data fsl_xcvr_imx8mp_data = {
+	.fw_name = "imx/xcvr/xcvr-imx8mp.bin",
+};
+
+static const struct of_device_id fsl_xcvr_dt_ids[] = {
+	{ .compatible = "fsl,imx8mp-xcvr", .data = &fsl_xcvr_imx8mp_data },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, fsl_xcvr_dt_ids);
+
+static int fsl_xcvr_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct fsl_xcvr *xcvr;
+	struct resource *rx_res, *tx_res;
+	void __iomem *regs;
+	int ret, irq;
+
+	xcvr = devm_kzalloc(dev, sizeof(*xcvr), GFP_KERNEL);
+	if (!xcvr)
+		return -ENOMEM;
+
+	xcvr->pdev = pdev;
+	xcvr->soc_data = of_device_get_match_data(&pdev->dev);
+
+	xcvr->ipg_clk = devm_clk_get(dev, "ipg");
+	if (IS_ERR(xcvr->ipg_clk)) {
+		dev_err(dev, "failed to get ipg clock\n");
+		return PTR_ERR(xcvr->ipg_clk);
+	}
+
+	xcvr->phy_clk = devm_clk_get(dev, "phy");
+	if (IS_ERR(xcvr->phy_clk)) {
+		dev_err(dev, "failed to get phy clock\n");
+		return PTR_ERR(xcvr->phy_clk);
+	}
+
+	xcvr->spba_clk = devm_clk_get(dev, "spba");
+	if (IS_ERR(xcvr->spba_clk)) {
+		dev_err(dev, "failed to get spba clock\n");
+		return PTR_ERR(xcvr->spba_clk);
+	}
+
+	xcvr->pll_ipg_clk = devm_clk_get(dev, "pll_ipg");
+	if (IS_ERR(xcvr->pll_ipg_clk)) {
+		dev_err(dev, "failed to get pll_ipg clock\n");
+		return PTR_ERR(xcvr->pll_ipg_clk);
+	}
+
+	xcvr->ram_addr = devm_platform_ioremap_resource_byname(pdev, "ram");
+	if (IS_ERR(xcvr->ram_addr))
+		return PTR_ERR(xcvr->ram_addr);
+
+	regs = devm_platform_ioremap_resource_byname(pdev, "regs");
+	if (IS_ERR(regs))
+		return PTR_ERR(regs);
+
+	xcvr->regmap = devm_regmap_init_mmio_clk(dev, NULL, regs,
+						 &fsl_xcvr_regmap_cfg);
+	if (IS_ERR(xcvr->regmap)) {
+		dev_err(dev, "failed to init XCVR regmap: %ld\n",
+			PTR_ERR(xcvr->regmap));
+		return PTR_ERR(xcvr->regmap);
+	}
+
+	xcvr->reset = devm_reset_control_get_exclusive(dev, NULL);
+	if (IS_ERR(xcvr->reset)) {
+		dev_err(dev, "failed to get XCVR reset control\n");
+		return PTR_ERR(xcvr->reset);
+	}
+
+	/* get IRQs */
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	ret = devm_request_irq(dev, irq, irq0_isr, 0, pdev->name, xcvr);
+	if (ret) {
+		dev_err(dev, "failed to claim IRQ0: %i\n", ret);
+		return ret;
+	}
+
+	rx_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rxfifo");
+	tx_res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "txfifo");
+	if (!rx_res || !tx_res) {
+		dev_err(dev, "could not find rxfifo or txfifo resource\n");
+		return -EINVAL;
+	}
+	xcvr->dma_prms_rx.chan_name = "rx";
+	xcvr->dma_prms_tx.chan_name = "tx";
+	xcvr->dma_prms_rx.addr = rx_res->start;
+	xcvr->dma_prms_tx.addr = tx_res->start;
+	xcvr->dma_prms_rx.maxburst = FSL_XCVR_MAXBURST_RX;
+	xcvr->dma_prms_tx.maxburst = FSL_XCVR_MAXBURST_TX;
+
+	platform_set_drvdata(pdev, xcvr);
+	pm_runtime_enable(dev);
+	regcache_cache_only(xcvr->regmap, true);
+
+	/*
+	 * Register platform component before registering cpu dai for there
+	 * is not defer probe for platform component in snd_soc_add_pcm_runtime().
+	 */
+	ret = devm_snd_dmaengine_pcm_register(dev, NULL, 0);
+	if (ret) {
+		pm_runtime_disable(dev);
+		dev_err(dev, "failed to pcm register\n");
+		return ret;
+	}
+
+	ret = devm_snd_soc_register_component(dev, &fsl_xcvr_comp,
+					      &fsl_xcvr_dai, 1);
+	if (ret) {
+		pm_runtime_disable(dev);
+		dev_err(dev, "failed to register component %s\n",
+			fsl_xcvr_comp.name);
+	}
+
+	return ret;
+}
+
+static int fsl_xcvr_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	return 0;
+}
+
+static __maybe_unused int fsl_xcvr_runtime_suspend(struct device *dev)
+{
+	struct fsl_xcvr *xcvr = dev_get_drvdata(dev);
+	int ret;
+
+	/*
+	 * Clear interrupts, when streams starts or resumes after
+	 * suspend, interrupts are enabled in prepare(), so no need
+	 * to enable interrupts in resume().
+	 */
+	ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_IER0,
+				 FSL_XCVR_IRQ_EARC_ALL, 0);
+	if (ret < 0)
+		dev_err(dev, "Failed to clear IER0: %d\n", ret);
+
+	/* Assert M0+ reset */
+	ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL,
+				 FSL_XCVR_EXT_CTRL_CORE_RESET,
+				 FSL_XCVR_EXT_CTRL_CORE_RESET);
+	if (ret < 0)
+		dev_err(dev, "Failed to assert M0+ core: %d\n", ret);
+
+	regcache_cache_only(xcvr->regmap, true);
+
+	clk_disable_unprepare(xcvr->spba_clk);
+	clk_disable_unprepare(xcvr->phy_clk);
+	clk_disable_unprepare(xcvr->pll_ipg_clk);
+	clk_disable_unprepare(xcvr->ipg_clk);
+
+	return 0;
+}
+
+static __maybe_unused int fsl_xcvr_runtime_resume(struct device *dev)
+{
+	struct fsl_xcvr *xcvr = dev_get_drvdata(dev);
+	int ret;
+
+	ret = reset_control_assert(xcvr->reset);
+	if (ret < 0) {
+		dev_err(dev, "Failed to assert M0+ reset: %d\n", ret);
+		return ret;
+	}
+
+	ret = clk_prepare_enable(xcvr->ipg_clk);
+	if (ret) {
+		dev_err(dev, "failed to start IPG clock.\n");
+		return ret;
+	}
+
+	ret = clk_prepare_enable(xcvr->pll_ipg_clk);
+	if (ret) {
+		dev_err(dev, "failed to start PLL IPG clock.\n");
+		goto stop_ipg_clk;
+	}
+
+	ret = clk_prepare_enable(xcvr->phy_clk);
+	if (ret) {
+		dev_err(dev, "failed to start PHY clock: %d\n", ret);
+		goto stop_pll_ipg_clk;
+	}
+
+	ret = clk_prepare_enable(xcvr->spba_clk);
+	if (ret) {
+		dev_err(dev, "failed to start SPBA clock.\n");
+		goto stop_phy_clk;
+	}
+
+	regcache_cache_only(xcvr->regmap, false);
+	regcache_mark_dirty(xcvr->regmap);
+	ret = regcache_sync(xcvr->regmap);
+
+	if (ret) {
+		dev_err(dev, "failed to sync regcache.\n");
+		goto stop_spba_clk;
+	}
+
+	ret = reset_control_deassert(xcvr->reset);
+	if (ret) {
+		dev_err(dev, "failed to deassert M0+ reset.\n");
+		goto stop_spba_clk;
+	}
+
+	ret = fsl_xcvr_load_firmware(xcvr);
+	if (ret) {
+		dev_err(dev, "failed to load firmware.\n");
+		goto stop_spba_clk;
+	}
+
+	/* Release M0+ reset */
+	ret = regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL,
+				 FSL_XCVR_EXT_CTRL_CORE_RESET, 0);
+	if (ret < 0) {
+		dev_err(dev, "M0+ core release failed: %d\n", ret);
+		goto stop_spba_clk;
+	}
+
+	/* Let M0+ core complete firmware initialization */
+	msleep(50);
+
+	return 0;
+
+stop_spba_clk:
+	clk_disable_unprepare(xcvr->spba_clk);
+stop_phy_clk:
+	clk_disable_unprepare(xcvr->phy_clk);
+stop_pll_ipg_clk:
+	clk_disable_unprepare(xcvr->pll_ipg_clk);
+stop_ipg_clk:
+	clk_disable_unprepare(xcvr->ipg_clk);
+
+	return ret;
+}
+
+static const struct dev_pm_ops fsl_xcvr_pm_ops = {
+	SET_RUNTIME_PM_OPS(fsl_xcvr_runtime_suspend,
+			   fsl_xcvr_runtime_resume,
+			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+				pm_runtime_force_resume)
+};
+
+static struct platform_driver fsl_xcvr_driver = {
+	.probe = fsl_xcvr_probe,
+	.driver = {
+		.name = "fsl,imx8mp-audio-xcvr",
+		.pm = &fsl_xcvr_pm_ops,
+		.of_match_table = fsl_xcvr_dt_ids,
+	},
+	.remove = fsl_xcvr_remove,
+};
+module_platform_driver(fsl_xcvr_driver);
+
+MODULE_AUTHOR("Viorel Suman <viorel.suman@nxp.com>");
+MODULE_DESCRIPTION("NXP Audio Transceiver (XCVR) driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/fsl_xcvr.h b/sound/soc/fsl/fsl_xcvr.h
new file mode 100644
index 000000000..7f2853c60
--- /dev/null
+++ b/sound/soc/fsl/fsl_xcvr.h
@@ -0,0 +1,266 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * NXP XCVR ALSA SoC Digital Audio Interface (DAI) driver
+ *
+ * Copyright 2019 NXP
+ */
+
+#ifndef __FSL_XCVR_H
+#define __FSL_XCVR_H
+
+#define FSL_XCVR_MODE_SPDIF	0
+#define FSL_XCVR_MODE_ARC	1
+#define FSL_XCVR_MODE_EARC	2
+
+/* XCVR Registers */
+#define FSL_XCVR_REG_OFFSET		0x800 /* regs offset */
+#define FSL_XCVR_FIFO_SIZE		0x80  /* 128 */
+#define FSL_XCVR_FIFO_WMK_RX		(FSL_XCVR_FIFO_SIZE >> 1)   /* 64 */
+#define FSL_XCVR_FIFO_WMK_TX		(FSL_XCVR_FIFO_SIZE >> 1)   /* 64 */
+#define FSL_XCVR_MAXBURST_RX		(FSL_XCVR_FIFO_WMK_RX >> 2) /* 16 */
+#define FSL_XCVR_MAXBURST_TX		(FSL_XCVR_FIFO_WMK_TX >> 2) /* 16 */
+
+#define FSL_XCVR_RX_FIFO_ADDR		0x0C00
+#define FSL_XCVR_TX_FIFO_ADDR		0x0E00
+
+#define FSL_XCVR_VERSION		0x00  /* Version */
+#define FSL_XCVR_EXT_CTRL		0x10  /* Control */
+#define FSL_XCVR_EXT_STATUS		0x20  /* Status */
+#define FSL_XCVR_EXT_IER0		0x30  /* Interrupt en 0 */
+#define FSL_XCVR_EXT_IER1		0x40  /* Interrupt en 1 */
+#define FSL_XCVR_EXT_ISR		0x50  /* Interrupt status */
+#define FSL_XCVR_EXT_ISR_SET		0x54  /* Interrupt status */
+#define FSL_XCVR_EXT_ISR_CLR		0x58  /* Interrupt status */
+#define FSL_XCVR_EXT_ISR_TOG		0x5C  /* Interrupt status */
+#define FSL_XCVR_IER			0x70  /* Interrupt en for M0+ */
+#define FSL_XCVR_ISR			0x80  /* Interrupt status */
+#define FSL_XCVR_ISR_SET		0x84  /* Interrupt status set */
+#define FSL_XCVR_ISR_CLR		0x88  /* Interrupt status clear */
+#define FSL_XCVR_ISR_TOG		0x8C  /* Interrupt status toggle */
+#define FSL_XCVR_PHY_AI_CTRL		0x90
+#define FSL_XCVR_PHY_AI_CTRL_SET	0x94
+#define FSL_XCVR_PHY_AI_CTRL_CLR	0x98
+#define FSL_XCVR_PHY_AI_CTRL_TOG	0x9C
+#define FSL_XCVR_PHY_AI_WDATA		0xA0
+#define FSL_XCVR_PHY_AI_RDATA		0xA4
+#define FSL_XCVR_CLK_CTRL		0xB0
+#define FSL_XCVR_RX_DPTH_CTRL		0x180 /* RX datapath ctrl reg */
+#define FSL_XCVR_RX_DPTH_CTRL_SET	0x184
+#define FSL_XCVR_RX_DPTH_CTRL_CLR	0x188
+#define FSL_XCVR_RX_DPTH_CTRL_TOG	0x18c
+
+#define FSL_XCVR_TX_DPTH_CTRL		0x220 /* TX datapath ctrl reg */
+#define FSL_XCVR_TX_DPTH_CTRL_SET	0x224
+#define FSL_XCVR_TX_DPTH_CTRL_CLR	0x228
+#define FSL_XCVR_TX_DPTH_CTRL_TOG	0x22C
+#define FSL_XCVR_TX_CS_DATA_0		0x230 /* TX channel status bits regs */
+#define FSL_XCVR_TX_CS_DATA_1		0x234
+#define FSL_XCVR_TX_CS_DATA_2		0x238
+#define FSL_XCVR_TX_CS_DATA_3		0x23C
+#define FSL_XCVR_TX_CS_DATA_4		0x240
+#define FSL_XCVR_TX_CS_DATA_5		0x244
+#define FSL_XCVR_DEBUG_REG_0		0x2E0
+#define FSL_XCVR_DEBUG_REG_1		0x2F0
+
+#define FSL_XCVR_MAX_REG		FSL_XCVR_DEBUG_REG_1
+
+#define FSL_XCVR_EXT_CTRL_CORE_RESET	BIT(31)
+
+#define FSL_XCVR_EXT_CTRL_RX_CMDC_RESET	BIT(30)
+#define FSL_XCVR_EXT_CTRL_TX_CMDC_RESET	BIT(29)
+#define FSL_XCVR_EXT_CTRL_CMDC_RESET(t) (t ? BIT(29) : BIT(30))
+
+#define FSL_XCVR_EXT_CTRL_RX_DPTH_RESET	BIT(28)
+#define FSL_XCVR_EXT_CTRL_TX_DPTH_RESET	BIT(27)
+#define FSL_XCVR_EXT_CTRL_DPTH_RESET(t) (t ? BIT(27) : BIT(28))
+
+#define FSL_XCVR_EXT_CTRL_TX_RX_MODE	BIT(26)
+#define FSL_XCVR_EXT_CTRL_DMA_RD_DIS	BIT(25)
+#define FSL_XCVR_EXT_CTRL_DMA_WR_DIS	BIT(24)
+#define FSL_XCVR_EXT_CTRL_DMA_DIS(t)	(t ? BIT(24) : BIT(25))
+#define FSL_XCVR_EXT_CTRL_SPDIF_MODE	BIT(23)
+#define FSL_XCVR_EXT_CTRL_SLEEP_MODE	BIT(21)
+
+#define FSL_XCVR_EXT_CTRL_TX_FWM_SHFT	0
+#define FSL_XCVR_EXT_CTRL_TX_FWM_MASK	GENMASK(6, 0)
+#define FSL_XCVR_EXT_CTRL_TX_FWM(i)	(((i) << FSL_XCVR_EXT_CTRL_TX_FWM_SHFT) \
+					  & FSL_XCVR_EXT_CTRL_TX_FWM_MASK)
+#define FSL_XCVR_EXT_CTRL_RX_FWM_SHFT	8
+#define FSL_XCVR_EXT_CTRL_RX_FWM_MASK	GENMASK(14, 8)
+#define FSL_XCVR_EXT_CTRL_RX_FWM(i)	(((i) << FSL_XCVR_EXT_CTRL_RX_FWM_SHFT) \
+					  & FSL_XCVR_EXT_CTRL_RX_FWM_MASK)
+#define FSL_XCVR_EXT_CTRL_PAGE_SHFT	16
+#define FSL_XCVR_EXT_CTRL_PAGE_MASK	GENMASK(19, 16)
+#define FSL_XCVR_EXT_CTRL_PAGE(i)	(((i) << FSL_XCVR_EXT_CTRL_PAGE_SHFT) \
+					  & FSL_XCVR_EXT_CTRL_PAGE_MASK)
+
+#define FSL_XCVR_EXT_STUS_NT_FIFO_ENTR	GENMASK(7, 0)
+#define FSL_XCVR_EXT_STUS_NR_FIFO_ENTR	GENMASK(15, 8)
+#define FSL_XCVR_EXT_STUS_CM0_SLEEPING	BIT(16)
+#define FSL_XCVR_EXT_STUS_CM0_DEEP_SLP	BIT(17)
+#define FSL_XCVR_EXT_STUS_CM0_SLP_HACK	BIT(18)
+#define FSL_XCVR_EXT_STUS_RX_CMDC_RSTO	BIT(23)
+#define FSL_XCVR_EXT_STUS_TX_CMDC_RSTO	BIT(24)
+#define FSL_XCVR_EXT_STUS_RX_CMDC_COTO	BIT(25)
+#define FSL_XCVR_EXT_STUS_TX_CMDC_COTO	BIT(26)
+#define FSL_XCVR_EXT_STUS_HB_STATUS	BIT(27)
+#define FSL_XCVR_EXT_STUS_NEW_UD4_REC	BIT(28)
+#define FSL_XCVR_EXT_STUS_NEW_UD5_REC	BIT(29)
+#define FSL_XCVR_EXT_STUS_NEW_UD6_REC	BIT(30)
+#define FSL_XCVR_EXT_STUS_HPD_INPUT	BIT(31)
+
+#define FSL_XCVR_IRQ_NEW_CS		BIT(0)
+#define FSL_XCVR_IRQ_NEW_UD		BIT(1)
+#define FSL_XCVR_IRQ_MUTE		BIT(2)
+#define FSL_XCVR_IRQ_CMDC_RESP_TO	BIT(3)
+#define FSL_XCVR_IRQ_ECC_ERR		BIT(4)
+#define FSL_XCVR_IRQ_PREAMBLE_MISMATCH	BIT(5)
+#define FSL_XCVR_IRQ_FIFO_UOFL_ERR	BIT(6)
+#define FSL_XCVR_IRQ_HOST_WAKEUP	BIT(7)
+#define FSL_XCVR_IRQ_HOST_OHPD		BIT(8)
+#define FSL_XCVR_IRQ_DMAC_NO_DATA_REC	BIT(9)
+#define FSL_XCVR_IRQ_DMAC_FMT_CHG_DET	BIT(10)
+#define FSL_XCVR_IRQ_HB_STATE_CHG	BIT(11)
+#define FSL_XCVR_IRQ_CMDC_STATUS_UPD	BIT(12)
+#define FSL_XCVR_IRQ_TEMP_UPD		BIT(13)
+#define FSL_XCVR_IRQ_DMA_RD_REQ		BIT(14)
+#define FSL_XCVR_IRQ_DMA_WR_REQ		BIT(15)
+#define FSL_XCVR_IRQ_DMAC_BME_BIT_ERR	BIT(16)
+#define FSL_XCVR_IRQ_PREAMBLE_MATCH	BIT(17)
+#define FSL_XCVR_IRQ_M_W_PRE_MISMATCH	BIT(18)
+#define FSL_XCVR_IRQ_B_PRE_MISMATCH	BIT(19)
+#define FSL_XCVR_IRQ_UNEXP_PRE_REC	BIT(20)
+#define FSL_XCVR_IRQ_ARC_MODE		BIT(21)
+#define FSL_XCVR_IRQ_CH_UD_OFLOW	BIT(22)
+#define FSL_XCVR_IRQ_EARC_ALL		(FSL_XCVR_IRQ_NEW_CS | \
+					 FSL_XCVR_IRQ_NEW_UD | \
+					 FSL_XCVR_IRQ_MUTE | \
+					 FSL_XCVR_IRQ_FIFO_UOFL_ERR | \
+					 FSL_XCVR_IRQ_HOST_WAKEUP | \
+					 FSL_XCVR_IRQ_ARC_MODE)
+
+#define FSL_XCVR_ISR_CMDC_TX_EN		BIT(3)
+#define FSL_XCVR_ISR_HPD_TGL		BIT(15)
+#define FSL_XCVR_ISR_DMAC_SPARE_INT	BIT(19)
+#define FSL_XCVR_ISR_SET_SPDIF_RX_INT	BIT(20)
+#define FSL_XCVR_ISR_SET_SPDIF_TX_INT	BIT(21)
+#define FSL_XCVR_ISR_SET_SPDIF_MODE(t)	(t ? BIT(21) : BIT(20))
+#define FSL_XCVR_ISR_SET_ARC_CM_INT	BIT(22)
+#define FSL_XCVR_ISR_SET_ARC_SE_INT	BIT(23)
+
+#define FSL_XCVR_PHY_AI_ADDR_MASK	GENMASK(7, 0)
+#define FSL_XCVR_PHY_AI_RESETN		BIT(15)
+#define FSL_XCVR_PHY_AI_TOG_PLL		BIT(24)
+#define FSL_XCVR_PHY_AI_TOG_DONE_PLL	BIT(25)
+#define FSL_XCVR_PHY_AI_TOG_PHY		BIT(26)
+#define FSL_XCVR_PHY_AI_TOG_DONE_PHY	BIT(27)
+#define FSL_XCVR_PHY_AI_RW_MASK		BIT(31)
+
+#define FSL_XCVR_RX_DPTH_CTRL_PAPB_FIFO_STATUS	BIT(0)
+#define FSL_XCVR_RX_DPTH_CTRL_DIS_PRE_ERR_CHK	BIT(1)
+#define FSL_XCVR_RX_DPTH_CTRL_DIS_NOD_REC_CHK	BIT(2)
+#define FSL_XCVR_RX_DPTH_CTRL_ECC_VUC_BIT_CHK	BIT(3)
+#define FSL_XCVR_RX_DPTH_CTRL_EN_CMP_PAR_CALC	BIT(4)
+#define FSL_XCVR_RX_DPTH_CTRL_RST_PKT_CNT_FIFO	BIT(5)
+#define FSL_XCVR_RX_DPTH_CTRL_STORE_FMT		BIT(6)
+#define FSL_XCVR_RX_DPTH_CTRL_EN_PAR_CALC	BIT(7)
+#define FSL_XCVR_RX_DPTH_CTRL_UDR		BIT(8)
+#define FSL_XCVR_RX_DPTH_CTRL_CSR		BIT(9)
+#define FSL_XCVR_RX_DPTH_CTRL_UDA		BIT(10)
+#define FSL_XCVR_RX_DPTH_CTRL_CSA		BIT(11)
+#define FSL_XCVR_RX_DPTH_CTRL_CLR_RX_FIFO	BIT(12)
+#define FSL_XCVR_RX_DPTH_CTRL_DIS_B_PRE_ERR_CHK	BIT(13)
+#define FSL_XCVR_RX_DPTH_CTRL_PABS		BIT(19)
+#define FSL_XCVR_RX_DPTH_CTRL_DTS_CDS		BIT(20)
+#define FSL_XCVR_RX_DPTH_CTRL_BLKC		BIT(21)
+#define FSL_XCVR_RX_DPTH_CTRL_MUTE_CTRL		BIT(22)
+#define FSL_XCVR_RX_DPTH_CTRL_MUTE_MODE		BIT(23)
+#define FSL_XCVR_RX_DPTH_CTRL_FMT_CHG_CTRL	BIT(24)
+#define FSL_XCVR_RX_DPTH_CTRL_FMT_CHG_MODE	BIT(25)
+#define FSL_XCVR_RX_DPTH_CTRL_LAYB_CTRL		BIT(26)
+#define FSL_XCVR_RX_DPTH_CTRL_LAYB_MODE		BIT(27)
+#define FSL_XCVR_RX_DPTH_CTRL_PRC		BIT(28)
+#define FSL_XCVR_RX_DPTH_CTRL_COMP		BIT(29)
+#define FSL_XCVR_RX_DPTH_CTRL_FSM		GENMASK(31, 30)
+
+#define FSL_XCVR_TX_DPTH_CTRL_CS_ACK		BIT(0)
+#define FSL_XCVR_TX_DPTH_CTRL_UD_ACK		BIT(1)
+#define FSL_XCVR_TX_DPTH_CTRL_CS_MOD		BIT(2)
+#define FSL_XCVR_TX_DPTH_CTRL_UD_MOD		BIT(3)
+#define FSL_XCVR_TX_DPTH_CTRL_VLD_MOD		BIT(4)
+#define FSL_XCVR_TX_DPTH_CTRL_FRM_VLD		BIT(5)
+#define FSL_XCVR_TX_DPTH_CTRL_EN_PARITY		BIT(6)
+#define FSL_XCVR_TX_DPTH_CTRL_EN_PREAMBLE	BIT(7)
+#define FSL_XCVR_TX_DPTH_CTRL_EN_ECC_INTER	BIT(8)
+#define FSL_XCVR_TX_DPTH_CTRL_BYPASS_FEM	BIT(10)
+#define FSL_XCVR_TX_DPTH_CTRL_FRM_FMT		BIT(11)
+#define FSL_XCVR_TX_DPTH_CTRL_STRT_DATA_TX	BIT(14)
+#define FSL_XCVR_TX_DPTH_CTRL_ADD_CYC_TX_OE_STR	BIT(15)
+#define FSL_XCVR_TX_DPTH_CTRL_ADD_CYC_TX_OE_END	BIT(16)
+#define FSL_XCVR_TX_DPTH_CTRL_CLK_RATIO		BIT(29)
+#define FSL_XCVR_TX_DPTH_CTRL_TM_NO_PRE_BME	GENMASK(31, 30)
+
+#define FSL_XCVR_PHY_AI_CTRL_AI_RESETN		BIT(15)
+
+#define FSL_XCVR_PLL_CTRL0			0x00
+#define FSL_XCVR_PLL_CTRL0_SET			0x04
+#define FSL_XCVR_PLL_CTRL0_CLR			0x08
+#define FSL_XCVR_PLL_NUM			0x20
+#define FSL_XCVR_PLL_DEN			0x30
+#define FSL_XCVR_PLL_PDIV			0x40
+#define FSL_XCVR_PLL_BANDGAP_SET		0x54
+#define FSL_XCVR_PHY_CTRL			0x00
+#define FSL_XCVR_PHY_CTRL_SET			0x04
+#define FSL_XCVR_PHY_CTRL_CLR			0x08
+#define FSL_XCVR_PHY_CTRL2			0x70
+#define FSL_XCVR_PHY_CTRL2_SET			0x74
+#define FSL_XCVR_PHY_CTRL2_CLR			0x78
+
+#define FSL_XCVR_PLL_BANDGAP_EN_VBG		BIT(0)
+#define FSL_XCVR_PLL_CTRL0_HROFF		BIT(13)
+#define FSL_XCVR_PLL_CTRL0_PWP			BIT(14)
+#define FSL_XCVR_PLL_CTRL0_CM0_EN		BIT(24)
+#define FSL_XCVR_PLL_CTRL0_CM1_EN		BIT(25)
+#define FSL_XCVR_PLL_CTRL0_CM2_EN		BIT(26)
+#define FSL_XCVR_PLL_PDIVx(v, i)		((v & 0x7) << (4 * i))
+
+#define FSL_XCVR_PHY_CTRL_PHY_EN		BIT(0)
+#define FSL_XCVR_PHY_CTRL_RX_CM_EN		BIT(1)
+#define FSL_XCVR_PHY_CTRL_TSDIFF_OE		BIT(5)
+#define FSL_XCVR_PHY_CTRL_SPDIF_EN		BIT(8)
+#define FSL_XCVR_PHY_CTRL_ARC_MODE_SE_EN	BIT(9)
+#define FSL_XCVR_PHY_CTRL_ARC_MODE_CM_EN	BIT(10)
+#define FSL_XCVR_PHY_CTRL_TX_CLK_MASK		GENMASK(26, 25)
+#define FSL_XCVR_PHY_CTRL_TX_CLK_HDMI_SS	BIT(25)
+#define FSL_XCVR_PHY_CTRL_TX_CLK_AUD_SS		BIT(26)
+#define FSL_XCVR_PHY_CTRL2_EARC_TXMS		BIT(14)
+
+#define FSL_XCVR_CS_DATA_0_FS_MASK		GENMASK(31, 24)
+#define FSL_XCVR_CS_DATA_0_FS_32000		0x3000000
+#define FSL_XCVR_CS_DATA_0_FS_44100		0x0000000
+#define FSL_XCVR_CS_DATA_0_FS_48000		0x2000000
+#define FSL_XCVR_CS_DATA_0_FS_64000		0xB000000
+#define FSL_XCVR_CS_DATA_0_FS_88200		0x8000000
+#define FSL_XCVR_CS_DATA_0_FS_96000		0xA000000
+#define FSL_XCVR_CS_DATA_0_FS_176400		0xC000000
+#define FSL_XCVR_CS_DATA_0_FS_192000		0xE000000
+
+#define FSL_XCVR_CS_DATA_0_CH_MASK		0x3A
+#define FSL_XCVR_CS_DATA_0_CH_U2LPCM		0x00
+#define FSL_XCVR_CS_DATA_0_CH_UMLPCM		0x20
+#define FSL_XCVR_CS_DATA_0_CH_U1BAUD		0x30
+
+#define FSL_XCVR_CS_DATA_1_CH_MASK		0xF000
+#define FSL_XCVR_CS_DATA_1_CH_2			0x0000
+#define FSL_XCVR_CS_DATA_1_CH_8			0x7000
+#define FSL_XCVR_CS_DATA_1_CH_16		0xB000
+#define FSL_XCVR_CS_DATA_1_CH_32		0x3000
+
+/* Data memory structures */
+#define FSL_XCVR_RX_CS_CTRL_0		0x20 /* First  RX CS control register */
+#define FSL_XCVR_RX_CS_CTRL_1		0x24 /* Second RX CS control register */
+#define FSL_XCVR_RX_CS_BUFF_0		0x80 /* First  RX CS buffer */
+#define FSL_XCVR_RX_CS_BUFF_1		0xA0 /* Second RX CS buffer */
+#define FSL_XCVR_CAP_DATA_STR		0x300 /* Capabilities data structure */
+
+#endif /* __FSL_XCVR_H */
diff --git a/sound/soc/fsl/imx-audio-rpmsg.c b/sound/soc/fsl/imx-audio-rpmsg.c
new file mode 100644
index 000000000..905c3a071
--- /dev/null
+++ b/sound/soc/fsl/imx-audio-rpmsg.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2017-2020 NXP
+
+#include <linux/module.h>
+#include <linux/rpmsg.h>
+#include "imx-pcm-rpmsg.h"
+
+/*
+ * struct imx_audio_rpmsg: private data
+ *
+ * @rpmsg_pdev: pointer of platform device
+ */
+struct imx_audio_rpmsg {
+	struct platform_device *rpmsg_pdev;
+};
+
+static int imx_audio_rpmsg_cb(struct rpmsg_device *rpdev, void *data, int len,
+			      void *priv, u32 src)
+{
+	struct imx_audio_rpmsg *rpmsg = dev_get_drvdata(&rpdev->dev);
+	struct rpmsg_r_msg *r_msg = (struct rpmsg_r_msg *)data;
+	struct rpmsg_info *info;
+	struct rpmsg_msg *msg;
+	unsigned long flags;
+
+	if (!rpmsg->rpmsg_pdev)
+		return 0;
+
+	info = platform_get_drvdata(rpmsg->rpmsg_pdev);
+
+	dev_dbg(&rpdev->dev, "get from%d: cmd:%d. %d\n",
+		src, r_msg->header.cmd, r_msg->param.resp);
+
+	switch (r_msg->header.type) {
+	case MSG_TYPE_C:
+		/* TYPE C is notification from M core */
+		switch (r_msg->header.cmd) {
+		case TX_PERIOD_DONE:
+			spin_lock_irqsave(&info->lock[TX], flags);
+			msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM];
+			msg->r_msg.param.buffer_tail =
+						r_msg->param.buffer_tail;
+			msg->r_msg.param.buffer_tail %= info->num_period[TX];
+			spin_unlock_irqrestore(&info->lock[TX], flags);
+			info->callback[TX](info->callback_param[TX]);
+			break;
+		case RX_PERIOD_DONE:
+			spin_lock_irqsave(&info->lock[RX], flags);
+			msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM];
+			msg->r_msg.param.buffer_tail =
+						r_msg->param.buffer_tail;
+			msg->r_msg.param.buffer_tail %= info->num_period[1];
+			spin_unlock_irqrestore(&info->lock[RX], flags);
+			info->callback[RX](info->callback_param[RX]);
+			break;
+		default:
+			dev_warn(&rpdev->dev, "unknown msg command\n");
+			break;
+		}
+		break;
+	case MSG_TYPE_B:
+		/* TYPE B is response msg */
+		memcpy(&info->r_msg, r_msg, sizeof(struct rpmsg_r_msg));
+		complete(&info->cmd_complete);
+		break;
+	default:
+		dev_warn(&rpdev->dev, "unknown msg type\n");
+		break;
+	}
+
+	return 0;
+}
+
+static int imx_audio_rpmsg_probe(struct rpmsg_device *rpdev)
+{
+	struct imx_audio_rpmsg *data;
+	int ret = 0;
+
+	dev_info(&rpdev->dev, "new channel: 0x%x -> 0x%x!\n",
+		 rpdev->src, rpdev->dst);
+
+	data = devm_kzalloc(&rpdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	dev_set_drvdata(&rpdev->dev, data);
+
+	/* Register platform driver for rpmsg routine */
+	data->rpmsg_pdev = platform_device_register_data(&rpdev->dev,
+							 IMX_PCM_DRV_NAME,
+							 PLATFORM_DEVID_NONE,
+							 NULL, 0);
+	if (IS_ERR(data->rpmsg_pdev)) {
+		dev_err(&rpdev->dev, "failed to register rpmsg platform.\n");
+		ret = PTR_ERR(data->rpmsg_pdev);
+	}
+
+	return ret;
+}
+
+static void imx_audio_rpmsg_remove(struct rpmsg_device *rpdev)
+{
+	struct imx_audio_rpmsg *data = dev_get_drvdata(&rpdev->dev);
+
+	if (data->rpmsg_pdev)
+		platform_device_unregister(data->rpmsg_pdev);
+
+	dev_info(&rpdev->dev, "audio rpmsg driver is removed\n");
+}
+
+static struct rpmsg_device_id imx_audio_rpmsg_id_table[] = {
+	{ .name	= "rpmsg-audio-channel" },
+	{ },
+};
+
+static struct rpmsg_driver imx_audio_rpmsg_driver = {
+	.drv.name	= "imx_audio_rpmsg",
+	.drv.owner	= THIS_MODULE,
+	.id_table	= imx_audio_rpmsg_id_table,
+	.probe		= imx_audio_rpmsg_probe,
+	.callback	= imx_audio_rpmsg_cb,
+	.remove		= imx_audio_rpmsg_remove,
+};
+
+module_rpmsg_driver(imx_audio_rpmsg_driver);
+
+MODULE_DESCRIPTION("Freescale SoC Audio RPMSG interface");
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_ALIAS("platform:imx_audio_rpmsg");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/imx-audmix.c b/sound/soc/fsl/imx-audmix.c
new file mode 100644
index 000000000..cbe24d5b4
--- /dev/null
+++ b/sound/soc/fsl/imx-audmix.c
@@ -0,0 +1,363 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2017 NXP
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * https://www.opensource.org/licenses/gpl-license.html
+ * https://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/clk.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <linux/pm_runtime.h>
+#include "fsl_sai.h"
+#include "fsl_audmix.h"
+
+struct imx_audmix {
+	struct platform_device *pdev;
+	struct snd_soc_card card;
+	struct platform_device *audmix_pdev;
+	struct platform_device *out_pdev;
+	struct clk *cpu_mclk;
+	int num_dai;
+	struct snd_soc_dai_link *dai;
+	int num_dai_conf;
+	struct snd_soc_codec_conf *dai_conf;
+	int num_dapm_routes;
+	struct snd_soc_dapm_route *dapm_routes;
+};
+
+static const u32 imx_audmix_rates[] = {
+	8000, 12000, 16000, 24000, 32000, 48000, 64000, 96000,
+};
+
+static const struct snd_pcm_hw_constraint_list imx_audmix_rate_constraints = {
+	.count = ARRAY_SIZE(imx_audmix_rates),
+	.list = imx_audmix_rates,
+};
+
+static int imx_audmix_fe_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct imx_audmix *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct device *dev = rtd->card->dev;
+	unsigned long clk_rate = clk_get_rate(priv->cpu_mclk);
+	int ret;
+
+	if (clk_rate % 24576000 == 0) {
+		ret = snd_pcm_hw_constraint_list(runtime, 0,
+						 SNDRV_PCM_HW_PARAM_RATE,
+						 &imx_audmix_rate_constraints);
+		if (ret < 0)
+			return ret;
+	} else {
+		dev_warn(dev, "mclk may be not supported %lu\n", clk_rate);
+	}
+
+	ret = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_CHANNELS,
+					   1, 8);
+	if (ret < 0)
+		return ret;
+
+	return snd_pcm_hw_constraint_mask64(runtime, SNDRV_PCM_HW_PARAM_FORMAT,
+					    FSL_AUDMIX_FORMATS);
+}
+
+static int imx_audmix_fe_hw_params(struct snd_pcm_substream *substream,
+				   struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct device *dev = rtd->card->dev;
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	unsigned int fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF;
+	u32 channels = params_channels(params);
+	int ret, dir;
+
+	/* For playback the AUDMIX is consumer, and for record is provider */
+	fmt |= tx ? SND_SOC_DAIFMT_BP_FP : SND_SOC_DAIFMT_BC_FC;
+	dir  = tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN;
+
+	/* set DAI configuration */
+	ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), fmt);
+	if (ret) {
+		dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dai_set_sysclk(asoc_rtd_to_cpu(rtd, 0), FSL_SAI_CLK_MAST1, 0, dir);
+	if (ret) {
+		dev_err(dev, "failed to set cpu sysclk: %d\n", ret);
+		return ret;
+	}
+
+	/*
+	 * Per datasheet, AUDMIX expects 8 slots and 32 bits
+	 * for every slot in TDM mode.
+	 */
+	ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), BIT(channels) - 1,
+				       BIT(channels) - 1, 8, 32);
+	if (ret)
+		dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
+
+	return ret;
+}
+
+static int imx_audmix_be_hw_params(struct snd_pcm_substream *substream,
+				   struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct device *dev = rtd->card->dev;
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	unsigned int fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF;
+	int ret;
+
+	if (!tx)
+		return 0;
+
+	/* For playback the AUDMIX is consumer */
+	fmt |= SND_SOC_DAIFMT_BC_FC;
+
+	/* set AUDMIX DAI configuration */
+	ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), fmt);
+	if (ret)
+		dev_err(dev, "failed to set AUDMIX DAI fmt: %d\n", ret);
+
+	return ret;
+}
+
+static const struct snd_soc_ops imx_audmix_fe_ops = {
+	.startup = imx_audmix_fe_startup,
+	.hw_params = imx_audmix_fe_hw_params,
+};
+
+static const struct snd_soc_ops imx_audmix_be_ops = {
+	.hw_params = imx_audmix_be_hw_params,
+};
+
+static int imx_audmix_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *audmix_np = NULL, *out_cpu_np = NULL;
+	struct platform_device *audmix_pdev = NULL;
+	struct platform_device *cpu_pdev;
+	struct of_phandle_args args;
+	struct imx_audmix *priv;
+	int i, num_dai, ret;
+	const char *fe_name_pref = "HiFi-AUDMIX-FE-";
+	char *be_name, *be_pb, *be_cp, *dai_name, *capture_dai_name;
+
+	if (pdev->dev.parent) {
+		audmix_np = pdev->dev.parent->of_node;
+	} else {
+		dev_err(&pdev->dev, "Missing parent device.\n");
+		return -EINVAL;
+	}
+
+	if (!audmix_np) {
+		dev_err(&pdev->dev, "Missing DT node for parent device.\n");
+		return -EINVAL;
+	}
+
+	audmix_pdev = of_find_device_by_node(audmix_np);
+	if (!audmix_pdev) {
+		dev_err(&pdev->dev, "Missing AUDMIX platform device for %s\n",
+			np->full_name);
+		return -EINVAL;
+	}
+	put_device(&audmix_pdev->dev);
+
+	num_dai = of_count_phandle_with_args(audmix_np, "dais", NULL);
+	if (num_dai != FSL_AUDMIX_MAX_DAIS) {
+		dev_err(&pdev->dev, "Need 2 dais to be provided for %s\n",
+			audmix_np->full_name);
+		return -EINVAL;
+	}
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->num_dai = 2 * num_dai;
+	priv->dai = devm_kcalloc(&pdev->dev, priv->num_dai,
+				 sizeof(struct snd_soc_dai_link), GFP_KERNEL);
+	if (!priv->dai)
+		return -ENOMEM;
+
+	priv->num_dai_conf = num_dai;
+	priv->dai_conf = devm_kcalloc(&pdev->dev, priv->num_dai_conf,
+				      sizeof(struct snd_soc_codec_conf),
+				      GFP_KERNEL);
+	if (!priv->dai_conf)
+		return -ENOMEM;
+
+	priv->num_dapm_routes = 3 * num_dai;
+	priv->dapm_routes = devm_kcalloc(&pdev->dev, priv->num_dapm_routes,
+					 sizeof(struct snd_soc_dapm_route),
+					 GFP_KERNEL);
+	if (!priv->dapm_routes)
+		return -ENOMEM;
+
+	for (i = 0; i < num_dai; i++) {
+		struct snd_soc_dai_link_component *dlc;
+
+		/* for CPU/Codec/Platform x 2 */
+		dlc = devm_kcalloc(&pdev->dev, 6, sizeof(*dlc), GFP_KERNEL);
+		if (!dlc)
+			return -ENOMEM;
+
+		ret = of_parse_phandle_with_args(audmix_np, "dais", NULL, i,
+						 &args);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "of_parse_phandle_with_args failed\n");
+			return ret;
+		}
+
+		cpu_pdev = of_find_device_by_node(args.np);
+		if (!cpu_pdev) {
+			dev_err(&pdev->dev, "failed to find SAI platform device\n");
+			return -EINVAL;
+		}
+		put_device(&cpu_pdev->dev);
+
+		dai_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s%s",
+					  fe_name_pref, args.np->full_name + 1);
+		if (!dai_name)
+			return -ENOMEM;
+
+		dev_info(pdev->dev.parent, "DAI FE name:%s\n", dai_name);
+
+		if (i == 0) {
+			out_cpu_np = args.np;
+			capture_dai_name =
+				devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s %s",
+					       dai_name, "CPU-Capture");
+			if (!capture_dai_name)
+				return -ENOMEM;
+		}
+
+		priv->dai[i].cpus = &dlc[0];
+		priv->dai[i].codecs = &dlc[1];
+		priv->dai[i].platforms = &dlc[2];
+
+		priv->dai[i].num_cpus = 1;
+		priv->dai[i].num_codecs = 1;
+		priv->dai[i].num_platforms = 1;
+
+		priv->dai[i].name = dai_name;
+		priv->dai[i].stream_name = "HiFi-AUDMIX-FE";
+		priv->dai[i].codecs->dai_name = "snd-soc-dummy-dai";
+		priv->dai[i].codecs->name = "snd-soc-dummy";
+		priv->dai[i].cpus->of_node = args.np;
+		priv->dai[i].cpus->dai_name = dev_name(&cpu_pdev->dev);
+		priv->dai[i].platforms->of_node = args.np;
+		priv->dai[i].dynamic = 1;
+		priv->dai[i].dpcm_playback = 1;
+		priv->dai[i].dpcm_capture = (i == 0 ? 1 : 0);
+		priv->dai[i].ignore_pmdown_time = 1;
+		priv->dai[i].ops = &imx_audmix_fe_ops;
+
+		/* Add AUDMIX Backend */
+		be_name = devm_kasprintf(&pdev->dev, GFP_KERNEL,
+					 "audmix-%d", i);
+		be_pb = devm_kasprintf(&pdev->dev, GFP_KERNEL,
+				       "AUDMIX-Playback-%d", i);
+		be_cp = devm_kasprintf(&pdev->dev, GFP_KERNEL,
+				       "AUDMIX-Capture-%d", i);
+		if (!be_name || !be_pb || !be_cp)
+			return -ENOMEM;
+
+		priv->dai[num_dai + i].cpus = &dlc[3];
+		priv->dai[num_dai + i].codecs = &dlc[4];
+		priv->dai[num_dai + i].platforms = &dlc[5];
+
+		priv->dai[num_dai + i].num_cpus = 1;
+		priv->dai[num_dai + i].num_codecs = 1;
+		priv->dai[num_dai + i].num_platforms = 1;
+
+		priv->dai[num_dai + i].name = be_name;
+		priv->dai[num_dai + i].codecs->dai_name = "snd-soc-dummy-dai";
+		priv->dai[num_dai + i].codecs->name = "snd-soc-dummy";
+		priv->dai[num_dai + i].cpus->of_node = audmix_np;
+		priv->dai[num_dai + i].cpus->dai_name = be_name;
+		priv->dai[num_dai + i].platforms->name = "snd-soc-dummy";
+		priv->dai[num_dai + i].no_pcm = 1;
+		priv->dai[num_dai + i].dpcm_playback = 1;
+		priv->dai[num_dai + i].dpcm_capture  = 1;
+		priv->dai[num_dai + i].ignore_pmdown_time = 1;
+		priv->dai[num_dai + i].ops = &imx_audmix_be_ops;
+
+		priv->dai_conf[i].dlc.of_node = args.np;
+		priv->dai_conf[i].name_prefix = dai_name;
+
+		priv->dapm_routes[i].source =
+			devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s %s",
+				       dai_name, "CPU-Playback");
+		if (!priv->dapm_routes[i].source)
+			return -ENOMEM;
+
+		priv->dapm_routes[i].sink = be_pb;
+		priv->dapm_routes[num_dai + i].source   = be_pb;
+		priv->dapm_routes[num_dai + i].sink     = be_cp;
+		priv->dapm_routes[2 * num_dai + i].source = be_cp;
+		priv->dapm_routes[2 * num_dai + i].sink   = capture_dai_name;
+	}
+
+	cpu_pdev = of_find_device_by_node(out_cpu_np);
+	if (!cpu_pdev) {
+		dev_err(&pdev->dev, "failed to find SAI platform device\n");
+		return -EINVAL;
+	}
+	put_device(&cpu_pdev->dev);
+
+	priv->cpu_mclk = devm_clk_get(&cpu_pdev->dev, "mclk1");
+	if (IS_ERR(priv->cpu_mclk)) {
+		ret = PTR_ERR(priv->cpu_mclk);
+		dev_err(&cpu_pdev->dev, "failed to get DAI mclk1: %d\n", ret);
+		return ret;
+	}
+
+	priv->audmix_pdev = audmix_pdev;
+	priv->out_pdev  = cpu_pdev;
+
+	priv->card.dai_link = priv->dai;
+	priv->card.num_links = priv->num_dai;
+	priv->card.codec_conf = priv->dai_conf;
+	priv->card.num_configs = priv->num_dai_conf;
+	priv->card.dapm_routes = priv->dapm_routes;
+	priv->card.num_dapm_routes = priv->num_dapm_routes;
+	priv->card.dev = &pdev->dev;
+	priv->card.owner = THIS_MODULE;
+	priv->card.name = "imx-audmix";
+
+	platform_set_drvdata(pdev, &priv->card);
+	snd_soc_card_set_drvdata(&priv->card, priv);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
+	if (ret) {
+		dev_err(&pdev->dev, "snd_soc_register_card failed\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+static struct platform_driver imx_audmix_driver = {
+	.probe = imx_audmix_probe,
+	.driver = {
+		.name = "imx-audmix",
+		.pm = &snd_soc_pm_ops,
+	},
+};
+module_platform_driver(imx_audmix_driver);
+
+MODULE_DESCRIPTION("NXP AUDMIX ASoC machine driver");
+MODULE_AUTHOR("Viorel Suman <viorel.suman@nxp.com>");
+MODULE_ALIAS("platform:imx-audmix");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c
new file mode 100644
index 000000000..50b71e5d4
--- /dev/null
+++ b/sound/soc/fsl/imx-audmux.c
@@ -0,0 +1,386 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2012 Freescale Semiconductor, Inc.
+// Copyright 2012 Linaro Ltd.
+// Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+//
+// Initial development of this code was funded by
+// Phytec Messtechnik GmbH, https://www.phytec.de
+
+#include <linux/clk.h>
+#include <linux/debugfs.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include "imx-audmux.h"
+
+#define DRIVER_NAME "imx-audmux"
+
+static struct clk *audmux_clk;
+static void __iomem *audmux_base;
+static u32 *regcache;
+static u32 reg_max;
+
+#define IMX_AUDMUX_V2_PTCR(x)		((x) * 8)
+#define IMX_AUDMUX_V2_PDCR(x)		((x) * 8 + 4)
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *audmux_debugfs_root;
+
+/* There is an annoying discontinuity in the SSI numbering with regard
+ * to the Linux number of the devices */
+static const char *audmux_port_string(int port)
+{
+	switch (port) {
+	case MX31_AUDMUX_PORT1_SSI0:
+		return "imx-ssi.0";
+	case MX31_AUDMUX_PORT2_SSI1:
+		return "imx-ssi.1";
+	case MX31_AUDMUX_PORT3_SSI_PINS_3:
+		return "SSI3";
+	case MX31_AUDMUX_PORT4_SSI_PINS_4:
+		return "SSI4";
+	case MX31_AUDMUX_PORT5_SSI_PINS_5:
+		return "SSI5";
+	case MX31_AUDMUX_PORT6_SSI_PINS_6:
+		return "SSI6";
+	default:
+		return "UNKNOWN";
+	}
+}
+
+static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
+				size_t count, loff_t *ppos)
+{
+	ssize_t ret;
+	char *buf;
+	uintptr_t port = (uintptr_t)file->private_data;
+	u32 pdcr, ptcr;
+
+	ret = clk_prepare_enable(audmux_clk);
+	if (ret)
+		return ret;
+
+	ptcr = readl(audmux_base + IMX_AUDMUX_V2_PTCR(port));
+	pdcr = readl(audmux_base + IMX_AUDMUX_V2_PDCR(port));
+
+	clk_disable_unprepare(audmux_clk);
+
+	buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = scnprintf(buf, PAGE_SIZE, "PDCR: %08x\nPTCR: %08x\n",
+		       pdcr, ptcr);
+
+	if (ptcr & IMX_AUDMUX_V2_PTCR_TFSDIR)
+		ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+				"TxFS output from %s, ",
+				audmux_port_string((ptcr >> 27) & 0x7));
+	else
+		ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+				"TxFS input, ");
+
+	if (ptcr & IMX_AUDMUX_V2_PTCR_TCLKDIR)
+		ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+				"TxClk output from %s",
+				audmux_port_string((ptcr >> 22) & 0x7));
+	else
+		ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+				"TxClk input");
+
+	ret += scnprintf(buf + ret, PAGE_SIZE - ret, "\n");
+
+	if (ptcr & IMX_AUDMUX_V2_PTCR_SYN) {
+		ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+				"Port is symmetric");
+	} else {
+		if (ptcr & IMX_AUDMUX_V2_PTCR_RFSDIR)
+			ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+					"RxFS output from %s, ",
+					audmux_port_string((ptcr >> 17) & 0x7));
+		else
+			ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+					"RxFS input, ");
+
+		if (ptcr & IMX_AUDMUX_V2_PTCR_RCLKDIR)
+			ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+					"RxClk output from %s",
+					audmux_port_string((ptcr >> 12) & 0x7));
+		else
+			ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+					"RxClk input");
+	}
+
+	ret += scnprintf(buf + ret, PAGE_SIZE - ret,
+			"\nData received from %s\n",
+			audmux_port_string((pdcr >> 13) & 0x7));
+
+	ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
+
+	kfree(buf);
+
+	return ret;
+}
+
+static const struct file_operations audmux_debugfs_fops = {
+	.open = simple_open,
+	.read = audmux_read_file,
+	.llseek = default_llseek,
+};
+
+static void audmux_debugfs_init(void)
+{
+	uintptr_t i;
+	char buf[20];
+
+	audmux_debugfs_root = debugfs_create_dir("audmux", NULL);
+
+	for (i = 0; i < MX31_AUDMUX_PORT7_SSI_PINS_7 + 1; i++) {
+		snprintf(buf, sizeof(buf), "ssi%lu", i);
+		debugfs_create_file(buf, 0444, audmux_debugfs_root,
+				    (void *)i, &audmux_debugfs_fops);
+	}
+}
+
+static void audmux_debugfs_remove(void)
+{
+	debugfs_remove_recursive(audmux_debugfs_root);
+}
+#else
+static inline void audmux_debugfs_init(void)
+{
+}
+
+static inline void audmux_debugfs_remove(void)
+{
+}
+#endif
+
+static enum imx_audmux_type {
+	IMX21_AUDMUX,
+	IMX31_AUDMUX,
+} audmux_type;
+
+static const struct of_device_id imx_audmux_dt_ids[] = {
+	{ .compatible = "fsl,imx21-audmux", .data = (void *)IMX21_AUDMUX, },
+	{ .compatible = "fsl,imx31-audmux", .data = (void *)IMX31_AUDMUX, },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_audmux_dt_ids);
+
+static const uint8_t port_mapping[] = {
+	0x0, 0x4, 0x8, 0x10, 0x14, 0x1c,
+};
+
+int imx_audmux_v1_configure_port(unsigned int port, unsigned int pcr)
+{
+	if (audmux_type != IMX21_AUDMUX)
+		return -EINVAL;
+
+	if (!audmux_base)
+		return -ENOSYS;
+
+	if (port >= ARRAY_SIZE(port_mapping))
+		return -EINVAL;
+
+	writel(pcr, audmux_base + port_mapping[port]);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(imx_audmux_v1_configure_port);
+
+int imx_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
+		unsigned int pdcr)
+{
+	int ret;
+
+	if (audmux_type != IMX31_AUDMUX)
+		return -EINVAL;
+
+	if (!audmux_base)
+		return -ENOSYS;
+
+	ret = clk_prepare_enable(audmux_clk);
+	if (ret)
+		return ret;
+
+	writel(ptcr, audmux_base + IMX_AUDMUX_V2_PTCR(port));
+	writel(pdcr, audmux_base + IMX_AUDMUX_V2_PDCR(port));
+
+	clk_disable_unprepare(audmux_clk);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(imx_audmux_v2_configure_port);
+
+static int imx_audmux_parse_dt_defaults(struct platform_device *pdev,
+		struct device_node *of_node)
+{
+	struct device_node *child;
+
+	for_each_available_child_of_node(of_node, child) {
+		unsigned int port;
+		unsigned int ptcr = 0;
+		unsigned int pdcr = 0;
+		unsigned int pcr = 0;
+		unsigned int val;
+		int ret;
+		int i = 0;
+
+		ret = of_property_read_u32(child, "fsl,audmux-port", &port);
+		if (ret) {
+			dev_warn(&pdev->dev, "Failed to get fsl,audmux-port of child node \"%pOF\"\n",
+					child);
+			continue;
+		}
+		if (!of_property_read_bool(child, "fsl,port-config")) {
+			dev_warn(&pdev->dev, "child node \"%pOF\" does not have property fsl,port-config\n",
+					child);
+			continue;
+		}
+
+		for (i = 0; (ret = of_property_read_u32_index(child,
+					"fsl,port-config", i, &val)) == 0;
+				++i) {
+			if (audmux_type == IMX31_AUDMUX) {
+				if (i % 2)
+					pdcr |= val;
+				else
+					ptcr |= val;
+			} else {
+				pcr |= val;
+			}
+		}
+
+		if (ret != -EOVERFLOW) {
+			dev_err(&pdev->dev, "Failed to read u32 at index %d of child %pOF\n",
+					i, child);
+			continue;
+		}
+
+		if (audmux_type == IMX31_AUDMUX) {
+			if (i % 2) {
+				dev_err(&pdev->dev, "One pdcr value is missing in child node %pOF\n",
+						child);
+				continue;
+			}
+			imx_audmux_v2_configure_port(port, ptcr, pdcr);
+		} else {
+			imx_audmux_v1_configure_port(port, pcr);
+		}
+	}
+
+	return 0;
+}
+
+static int imx_audmux_probe(struct platform_device *pdev)
+{
+	audmux_base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(audmux_base))
+		return PTR_ERR(audmux_base);
+
+	audmux_clk = devm_clk_get(&pdev->dev, "audmux");
+	if (IS_ERR(audmux_clk)) {
+		dev_dbg(&pdev->dev, "cannot get clock: %ld\n",
+				PTR_ERR(audmux_clk));
+		audmux_clk = NULL;
+	}
+
+	audmux_type = (uintptr_t)of_device_get_match_data(&pdev->dev);
+
+	switch (audmux_type) {
+	case IMX31_AUDMUX:
+		audmux_debugfs_init();
+		reg_max = 14;
+		break;
+	case IMX21_AUDMUX:
+		reg_max = 6;
+		break;
+	default:
+		dev_err(&pdev->dev, "unsupported version!\n");
+		return -EINVAL;
+	}
+
+	regcache = devm_kzalloc(&pdev->dev, sizeof(u32) * reg_max, GFP_KERNEL);
+	if (!regcache)
+		return -ENOMEM;
+
+	imx_audmux_parse_dt_defaults(pdev, pdev->dev.of_node);
+
+	return 0;
+}
+
+static int imx_audmux_remove(struct platform_device *pdev)
+{
+	if (audmux_type == IMX31_AUDMUX)
+		audmux_debugfs_remove();
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int imx_audmux_suspend(struct device *dev)
+{
+	int i;
+
+	clk_prepare_enable(audmux_clk);
+
+	for (i = 0; i < reg_max; i++)
+		regcache[i] = readl(audmux_base + i * 4);
+
+	clk_disable_unprepare(audmux_clk);
+
+	return 0;
+}
+
+static int imx_audmux_resume(struct device *dev)
+{
+	int i;
+
+	clk_prepare_enable(audmux_clk);
+
+	for (i = 0; i < reg_max; i++)
+		writel(regcache[i], audmux_base + i * 4);
+
+	clk_disable_unprepare(audmux_clk);
+
+	return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops imx_audmux_pm = {
+	SET_SYSTEM_SLEEP_PM_OPS(imx_audmux_suspend, imx_audmux_resume)
+};
+
+static struct platform_driver imx_audmux_driver = {
+	.probe		= imx_audmux_probe,
+	.remove		= imx_audmux_remove,
+	.driver	= {
+		.name	= DRIVER_NAME,
+		.pm = &imx_audmux_pm,
+		.of_match_table = imx_audmux_dt_ids,
+	}
+};
+
+static int __init imx_audmux_init(void)
+{
+	return platform_driver_register(&imx_audmux_driver);
+}
+subsys_initcall(imx_audmux_init);
+
+static void __exit imx_audmux_exit(void)
+{
+	platform_driver_unregister(&imx_audmux_driver);
+}
+module_exit(imx_audmux_exit);
+
+MODULE_DESCRIPTION("Freescale i.MX AUDMUX driver");
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/sound/soc/fsl/imx-audmux.h b/sound/soc/fsl/imx-audmux.h
new file mode 100644
index 000000000..f75b4d3ae
--- /dev/null
+++ b/sound/soc/fsl/imx-audmux.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __IMX_AUDMUX_H
+#define __IMX_AUDMUX_H
+
+#include <dt-bindings/sound/fsl-imx-audmux.h>
+
+int imx_audmux_v1_configure_port(unsigned int port, unsigned int pcr);
+
+int imx_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
+		unsigned int pdcr);
+
+#endif /* __IMX_AUDMUX_H */
diff --git a/sound/soc/fsl/imx-card.c b/sound/soc/fsl/imx-card.c
new file mode 100644
index 000000000..64a4d7e9d
--- /dev/null
+++ b/sound/soc/fsl/imx-card.c
@@ -0,0 +1,869 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2017-2021 NXP
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/gpio/consumer.h>
+#include <linux/of_device.h>
+#include <linux/i2c.h>
+#include <linux/of_gpio.h>
+#include <linux/clk.h>
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+#include <sound/pcm.h>
+#include <sound/soc-dapm.h>
+#include <sound/simple_card_utils.h>
+
+#include "fsl_sai.h"
+
+#define IMX_CARD_MCLK_22P5792MHZ  22579200
+#define IMX_CARD_MCLK_24P576MHZ   24576000
+
+enum codec_type {
+	CODEC_DUMMY = 0,
+	CODEC_AK5558 = 1,
+	CODEC_AK4458,
+	CODEC_AK4497,
+	CODEC_AK5552,
+};
+
+/*
+ * Mapping LRCK fs and frame width, table 3 & 4 in datasheet
+ * @rmin: min rate
+ * @rmax: max rate
+ * @wmin: min frame ratio
+ * @wmax: max frame ratio
+ */
+struct imx_akcodec_fs_mul {
+	unsigned int rmin;
+	unsigned int rmax;
+	unsigned int wmin;
+	unsigned int wmax;
+};
+
+/*
+ * Mapping TDM mode and frame width
+ */
+struct imx_akcodec_tdm_fs_mul {
+	unsigned int min;
+	unsigned int max;
+	unsigned int mul;
+};
+
+/*
+ * struct imx_card_plat_data - specific info for codecs
+ *
+ * @fs_mul: ratio of mclk/fs for normal mode
+ * @tdm_fs_mul: ratio of mclk/fs for tdm mode
+ * @support_rates: supported sample rate
+ * @support_tdm_rates: supported sample rate for tdm mode
+ * @support_channels: supported channels
+ * @support_tdm_channels: supported channels for tdm mode
+ * @num_fs_mul: ARRAY_SIZE of fs_mul
+ * @num_tdm_fs_mul: ARRAY_SIZE of tdm_fs_mul
+ * @num_rates: ARRAY_SIZE of support_rates
+ * @num_tdm_rates: ARRAY_SIZE of support_tdm_rates
+ * @num_channels: ARRAY_SIZE of support_channels
+ * @num_tdm_channels: ARRAY_SIZE of support_tdm_channels
+ * @type: codec type
+ */
+struct imx_card_plat_data {
+	struct imx_akcodec_fs_mul  *fs_mul;
+	struct imx_akcodec_tdm_fs_mul  *tdm_fs_mul;
+	const u32 *support_rates;
+	const u32 *support_tdm_rates;
+	const u32 *support_channels;
+	const u32 *support_tdm_channels;
+	unsigned int num_fs_mul;
+	unsigned int num_tdm_fs_mul;
+	unsigned int num_rates;
+	unsigned int num_tdm_rates;
+	unsigned int num_channels;
+	unsigned int num_tdm_channels;
+	unsigned int num_codecs;
+	enum codec_type type;
+};
+
+/*
+ * struct dai_link_data - specific info for dai link
+ *
+ * @slots: slot number
+ * @slot_width: slot width value
+ * @cpu_sysclk_id: sysclk id for cpu dai
+ * @one2one_ratio: true if mclk equal to bclk
+ */
+struct dai_link_data {
+	unsigned int slots;
+	unsigned int slot_width;
+	unsigned int cpu_sysclk_id;
+	bool one2one_ratio;
+};
+
+/*
+ * struct imx_card_data - platform device data
+ *
+ * @plat_data: pointer of imx_card_plat_data
+ * @dapm_routes: pointer of dapm_routes
+ * @link_data: private data for dai link
+ * @card: card instance
+ * @num_dapm_routes: number of dapm_routes
+ * @asrc_rate: asrc rates
+ * @asrc_format: asrc format
+ */
+struct imx_card_data {
+	struct imx_card_plat_data *plat_data;
+	struct snd_soc_dapm_route *dapm_routes;
+	struct dai_link_data *link_data;
+	struct snd_soc_card card;
+	int num_dapm_routes;
+	u32 asrc_rate;
+	snd_pcm_format_t asrc_format;
+};
+
+static struct imx_akcodec_fs_mul ak4458_fs_mul[] = {
+	/* Normal, < 32kHz */
+	{ .rmin = 8000,   .rmax = 24000,  .wmin = 256,  .wmax = 1024, },
+	/* Normal, 32kHz */
+	{ .rmin = 32000,  .rmax = 32000,  .wmin = 256,  .wmax = 1024, },
+	/* Normal */
+	{ .rmin = 44100,  .rmax = 48000,  .wmin = 256,  .wmax = 768,  },
+	/* Double */
+	{ .rmin = 88200,  .rmax = 96000,  .wmin = 256,  .wmax = 512,  },
+	/* Quad */
+	{ .rmin = 176400, .rmax = 192000, .wmin = 128,  .wmax = 256,  },
+	/* Oct */
+	{ .rmin = 352800, .rmax = 384000, .wmin = 32,   .wmax = 128,  },
+	/* Hex */
+	{ .rmin = 705600, .rmax = 768000, .wmin = 16,   .wmax = 64,   },
+};
+
+static struct imx_akcodec_tdm_fs_mul ak4458_tdm_fs_mul[] = {
+	/*
+	 * Table 13	- Audio Interface Format
+	 * For TDM mode, MCLK should is set to
+	 * obtained from 2 * slots * slot_width
+	 */
+	{ .min = 128,	.max = 128,	.mul = 256  }, /* TDM128 */
+	{ .min = 256,	.max = 256,	.mul = 512  }, /* TDM256 */
+	{ .min = 512,	.max = 512,	.mul = 1024  }, /* TDM512 */
+};
+
+static struct imx_akcodec_fs_mul ak4497_fs_mul[] = {
+	/**
+	 * Table 7      - mapping multiplier and speed mode
+	 * Tables 8 & 9 - mapping speed mode and LRCK fs
+	 */
+	{ .rmin = 8000,   .rmax = 32000,  .wmin = 256,  .wmax = 1024, }, /* Normal, <= 32kHz */
+	{ .rmin = 44100,  .rmax = 48000,  .wmin = 256,  .wmax = 512, }, /* Normal */
+	{ .rmin = 88200,  .rmax = 96000,  .wmin = 256,  .wmax = 256, }, /* Double */
+	{ .rmin = 176400, .rmax = 192000, .wmin = 128,  .wmax = 128, }, /* Quad */
+	{ .rmin = 352800, .rmax = 384000, .wmin = 128,  .wmax = 128, }, /* Oct */
+	{ .rmin = 705600, .rmax = 768000, .wmin = 64,   .wmax = 64, }, /* Hex */
+};
+
+/*
+ * Auto MCLK selection based on LRCK for Normal Mode
+ * (Table 4 from datasheet)
+ */
+static struct imx_akcodec_fs_mul ak5558_fs_mul[] = {
+	{ .rmin = 8000,   .rmax = 32000,  .wmin = 512,  .wmax = 1024, },
+	{ .rmin = 44100,  .rmax = 48000,  .wmin = 512,  .wmax = 512, },
+	{ .rmin = 88200,  .rmax = 96000,  .wmin = 256,  .wmax = 256, },
+	{ .rmin = 176400, .rmax = 192000, .wmin = 128,  .wmax = 128, },
+	{ .rmin = 352800, .rmax = 384000, .wmin = 64,   .wmax = 64, },
+	{ .rmin = 705600, .rmax = 768000, .wmin = 32,   .wmax = 32, },
+};
+
+/*
+ * MCLK and BCLK selection based on TDM mode
+ * because of SAI we also add the restriction: MCLK >= 2 * BCLK
+ * (Table 9 from datasheet)
+ */
+static struct imx_akcodec_tdm_fs_mul ak5558_tdm_fs_mul[] = {
+	{ .min = 128,	.max = 128,	.mul = 256 },
+	{ .min = 256,	.max = 256,	.mul = 512 },
+	{ .min = 512,	.max = 512,	.mul = 1024 },
+};
+
+static const u32 akcodec_rates[] = {
+	8000, 11025, 16000, 22050, 32000, 44100, 48000, 88200,
+	96000, 176400, 192000, 352800, 384000, 705600, 768000,
+};
+
+static const u32 akcodec_tdm_rates[] = {
+	8000, 16000, 32000, 48000, 96000,
+};
+
+static const u32 ak4458_channels[] = {
+	1, 2, 4, 6, 8, 10, 12, 14, 16,
+};
+
+static const u32 ak4458_tdm_channels[] = {
+	1, 2, 3, 4, 5, 6, 7, 8, 16,
+};
+
+static const u32 ak5558_channels[] = {
+	1, 2, 4, 6, 8,
+};
+
+static const u32 ak5558_tdm_channels[] = {
+	1, 2, 3, 4, 5, 6, 7, 8,
+};
+
+static bool format_is_dsd(struct snd_pcm_hw_params *params)
+{
+	snd_pcm_format_t format = params_format(params);
+
+	switch (format) {
+	case SNDRV_PCM_FORMAT_DSD_U8:
+	case SNDRV_PCM_FORMAT_DSD_U16_LE:
+	case SNDRV_PCM_FORMAT_DSD_U16_BE:
+	case SNDRV_PCM_FORMAT_DSD_U32_LE:
+	case SNDRV_PCM_FORMAT_DSD_U32_BE:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool format_is_tdm(struct dai_link_data *link_data)
+{
+	if (link_data->slots > 2)
+		return true;
+	else
+		return false;
+}
+
+static bool codec_is_akcodec(unsigned int type)
+{
+	switch (type) {
+	case CODEC_AK4458:
+	case CODEC_AK4497:
+	case CODEC_AK5558:
+	case CODEC_AK5552:
+		return true;
+	default:
+		break;
+	}
+	return false;
+}
+
+static unsigned long akcodec_get_mclk_rate(struct snd_pcm_substream *substream,
+					   struct snd_pcm_hw_params *params,
+					   int slots, int slot_width)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct imx_card_data *data = snd_soc_card_get_drvdata(rtd->card);
+	const struct imx_card_plat_data *plat_data = data->plat_data;
+	struct dai_link_data *link_data = &data->link_data[rtd->num];
+	unsigned int width = slots * slot_width;
+	unsigned int rate = params_rate(params);
+	int i;
+
+	if (format_is_tdm(link_data)) {
+		for (i = 0; i < plat_data->num_tdm_fs_mul; i++) {
+			/* min = max = slots * slots_width */
+			if (width != plat_data->tdm_fs_mul[i].min)
+				continue;
+			return rate * plat_data->tdm_fs_mul[i].mul;
+		}
+	} else {
+		for (i = 0; i < plat_data->num_fs_mul; i++) {
+			if (rate >= plat_data->fs_mul[i].rmin &&
+			    rate <= plat_data->fs_mul[i].rmax) {
+				width = max(width, plat_data->fs_mul[i].wmin);
+				width = min(width, plat_data->fs_mul[i].wmax);
+
+				/* Adjust SAI bclk:mclk ratio */
+				width *= link_data->one2one_ratio ? 1 : 2;
+
+				return rate * width;
+			}
+		}
+	}
+
+	/* Let DAI manage clk frequency by default */
+	return 0;
+}
+
+static int imx_aif_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct snd_soc_card *card = rtd->card;
+	struct imx_card_data *data = snd_soc_card_get_drvdata(card);
+	struct dai_link_data *link_data = &data->link_data[rtd->num];
+	struct imx_card_plat_data *plat_data = data->plat_data;
+	struct device *dev = card->dev;
+	struct snd_soc_dai *codec_dai;
+	unsigned long mclk_freq;
+	unsigned int fmt = rtd->dai_link->dai_fmt;
+	unsigned int slots, slot_width;
+	int ret, i;
+
+	slots = link_data->slots;
+	slot_width = link_data->slot_width;
+
+	if (!format_is_tdm(link_data)) {
+		if (format_is_dsd(params)) {
+			slots = 1;
+			slot_width = params_width(params);
+			fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) |
+			      SND_SOC_DAIFMT_PDM;
+		} else {
+			slots = 2;
+			slot_width = params_physical_width(params);
+			fmt = (rtd->dai_link->dai_fmt & ~SND_SOC_DAIFMT_FORMAT_MASK) |
+			      SND_SOC_DAIFMT_I2S;
+		}
+	}
+
+	ret = snd_soc_dai_set_fmt(cpu_dai, snd_soc_daifmt_clock_provider_flipped(fmt));
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dev, "failed to set cpu dai fmt: %d\n", ret);
+		return ret;
+	}
+	ret = snd_soc_dai_set_tdm_slot(cpu_dai,
+				       BIT(slots) - 1,
+				       BIT(slots) - 1,
+				       slots, slot_width);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
+		return ret;
+	}
+
+	for_each_rtd_codec_dais(rtd, i, codec_dai) {
+		ret = snd_soc_dai_set_fmt(codec_dai, fmt);
+		if (ret && ret != -ENOTSUPP) {
+			dev_err(dev, "failed to set codec dai[%d] fmt: %d\n", i, ret);
+			return ret;
+		}
+
+		ret = snd_soc_dai_set_tdm_slot(codec_dai,
+					       BIT(slots) - 1,
+					       BIT(slots) - 1,
+					       slots, slot_width);
+		if (ret && ret != -ENOTSUPP) {
+			dev_err(dev, "failed to set codec dai[%d] tdm slot: %d\n", i, ret);
+			return ret;
+		}
+	}
+
+	/* Set MCLK freq */
+	if (codec_is_akcodec(plat_data->type))
+		mclk_freq = akcodec_get_mclk_rate(substream, params, slots, slot_width);
+	else
+		mclk_freq = params_rate(params) * slots * slot_width;
+
+	if (format_is_dsd(params)) {
+		/* Use the maximum freq from DSD512 (512*44100 = 22579200) */
+		if (!(params_rate(params) % 11025))
+			mclk_freq = IMX_CARD_MCLK_22P5792MHZ;
+		else
+			mclk_freq = IMX_CARD_MCLK_24P576MHZ;
+	}
+
+	ret = snd_soc_dai_set_sysclk(cpu_dai, link_data->cpu_sysclk_id, mclk_freq,
+				     SND_SOC_CLOCK_OUT);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dev, "failed to set cpui dai mclk1 rate (%lu): %d\n", mclk_freq, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ak5558_hw_rule_rate(struct snd_pcm_hw_params *p, struct snd_pcm_hw_rule *r)
+{
+	struct dai_link_data *link_data = r->private;
+	struct snd_interval t = { .min = 8000, .max = 8000, };
+	unsigned long mclk_freq;
+	unsigned int fs;
+	int i;
+
+	fs = hw_param_interval(p, SNDRV_PCM_HW_PARAM_SAMPLE_BITS)->min;
+	fs *= link_data->slots;
+
+	/* Identify maximum supported rate */
+	for (i = 0; i < ARRAY_SIZE(akcodec_rates); i++) {
+		mclk_freq = fs * akcodec_rates[i];
+		/* Adjust SAI bclk:mclk ratio */
+		mclk_freq *= link_data->one2one_ratio ? 1 : 2;
+
+		/* Skip rates for which MCLK is beyond supported value */
+		if (mclk_freq > 36864000)
+			continue;
+
+		if (t.max < akcodec_rates[i])
+			t.max = akcodec_rates[i];
+	}
+
+	return snd_interval_refine(hw_param_interval(p, r->var), &t);
+}
+
+static int imx_aif_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_card *card = rtd->card;
+	struct imx_card_data *data = snd_soc_card_get_drvdata(card);
+	struct dai_link_data *link_data = &data->link_data[rtd->num];
+	static struct snd_pcm_hw_constraint_list constraint_rates;
+	static struct snd_pcm_hw_constraint_list constraint_channels;
+	int ret = 0;
+
+	if (format_is_tdm(link_data)) {
+		constraint_channels.list = data->plat_data->support_tdm_channels;
+		constraint_channels.count = data->plat_data->num_tdm_channels;
+		constraint_rates.list = data->plat_data->support_tdm_rates;
+		constraint_rates.count = data->plat_data->num_tdm_rates;
+	} else {
+		constraint_channels.list = data->plat_data->support_channels;
+		constraint_channels.count = data->plat_data->num_channels;
+		constraint_rates.list = data->plat_data->support_rates;
+		constraint_rates.count = data->plat_data->num_rates;
+	}
+
+	if (constraint_channels.count) {
+		ret = snd_pcm_hw_constraint_list(runtime, 0,
+						 SNDRV_PCM_HW_PARAM_CHANNELS,
+						 &constraint_channels);
+		if (ret)
+			return ret;
+	}
+
+	if (constraint_rates.count) {
+		ret = snd_pcm_hw_constraint_list(runtime, 0,
+						 SNDRV_PCM_HW_PARAM_RATE,
+						 &constraint_rates);
+		if (ret)
+			return ret;
+	}
+
+	if (data->plat_data->type == CODEC_AK5558)
+		ret = snd_pcm_hw_rule_add(substream->runtime, 0,
+					  SNDRV_PCM_HW_PARAM_RATE,
+					  ak5558_hw_rule_rate, link_data,
+					  SNDRV_PCM_HW_PARAM_SAMPLE_BITS, -1);
+
+	return ret;
+}
+
+static const struct snd_soc_ops imx_aif_ops = {
+	.hw_params = imx_aif_hw_params,
+	.startup = imx_aif_startup,
+};
+
+static const struct snd_soc_ops imx_aif_ops_be = {
+	.hw_params = imx_aif_hw_params,
+};
+
+static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+			      struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_card *card = rtd->card;
+	struct imx_card_data *data = snd_soc_card_get_drvdata(card);
+	struct snd_interval *rate;
+	struct snd_mask *mask;
+
+	rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+	rate->max = data->asrc_rate;
+	rate->min = data->asrc_rate;
+
+	mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+	snd_mask_none(mask);
+	snd_mask_set(mask, (__force unsigned int)data->asrc_format);
+
+	return 0;
+}
+
+static int imx_card_parse_of(struct imx_card_data *data)
+{
+	struct imx_card_plat_data *plat_data = data->plat_data;
+	struct snd_soc_card *card = &data->card;
+	struct snd_soc_dai_link_component *dlc;
+	struct device_node *platform = NULL;
+	struct device_node *codec = NULL;
+	struct device_node *cpu = NULL;
+	struct device_node *np;
+	struct device *dev = card->dev;
+	struct snd_soc_dai_link *link;
+	struct dai_link_data *link_data;
+	struct of_phandle_args args;
+	int ret, num_links;
+	u32 asrc_fmt = 0;
+	u32 width;
+
+	ret = snd_soc_of_parse_card_name(card, "model");
+	if (ret) {
+		dev_err(dev, "Error parsing card name: %d\n", ret);
+		return ret;
+	}
+
+	/* DAPM routes */
+	if (of_property_read_bool(dev->of_node, "audio-routing")) {
+		ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
+		if (ret)
+			return ret;
+	}
+
+	/* Populate links */
+	num_links = of_get_child_count(dev->of_node);
+
+	/* Allocate the DAI link array */
+	card->dai_link = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
+	if (!card->dai_link)
+		return -ENOMEM;
+
+	data->link_data = devm_kcalloc(dev, num_links, sizeof(*link), GFP_KERNEL);
+	if (!data->link_data)
+		return -ENOMEM;
+
+	card->num_links = num_links;
+	link = card->dai_link;
+	link_data = data->link_data;
+
+	for_each_child_of_node(dev->of_node, np) {
+		dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
+		if (!dlc) {
+			ret = -ENOMEM;
+			goto err_put_np;
+		}
+
+		link->cpus	= &dlc[0];
+		link->platforms	= &dlc[1];
+
+		link->num_cpus		= 1;
+		link->num_platforms	= 1;
+
+		ret = of_property_read_string(np, "link-name", &link->name);
+		if (ret) {
+			dev_err(card->dev, "error getting codec dai_link name\n");
+			goto err_put_np;
+		}
+
+		cpu = of_get_child_by_name(np, "cpu");
+		if (!cpu) {
+			dev_err(dev, "%s: Can't find cpu DT node\n", link->name);
+			ret = -EINVAL;
+			goto err;
+		}
+
+		ret = of_parse_phandle_with_args(cpu, "sound-dai",
+						 "#sound-dai-cells", 0, &args);
+		if (ret) {
+			dev_err(card->dev, "%s: error getting cpu phandle\n", link->name);
+			goto err;
+		}
+
+		if (of_node_name_eq(args.np, "sai")) {
+			/* sai sysclk id */
+			link_data->cpu_sysclk_id = FSL_SAI_CLK_MAST1;
+
+			/* sai may support mclk/bclk = 1 */
+			if (of_property_read_bool(np, "fsl,mclk-equal-bclk")) {
+				link_data->one2one_ratio = true;
+			} else {
+				int i;
+
+				/*
+				 * i.MX8MQ don't support one2one ratio, then
+				 * with ak4497 only 16bit case is supported.
+				 */
+				for (i = 0; i < ARRAY_SIZE(ak4497_fs_mul); i++) {
+					if (ak4497_fs_mul[i].rmin == 705600 &&
+					    ak4497_fs_mul[i].rmax == 768000) {
+						ak4497_fs_mul[i].wmin = 32;
+						ak4497_fs_mul[i].wmax = 32;
+					}
+				}
+			}
+		}
+
+		link->cpus->of_node = args.np;
+		link->platforms->of_node = link->cpus->of_node;
+		link->id = args.args[0];
+
+		ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name);
+		if (ret) {
+			dev_err_probe(card->dev, ret,
+				      "%s: error getting cpu dai name\n", link->name);
+			goto err;
+		}
+
+		codec = of_get_child_by_name(np, "codec");
+		if (codec) {
+			ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
+			if (ret < 0) {
+				dev_err_probe(dev, ret, "%s: codec dai not found\n",
+						link->name);
+				goto err;
+			}
+
+			plat_data->num_codecs = link->num_codecs;
+
+			/* Check the akcodec type */
+			if (!strcmp(link->codecs->dai_name, "ak4458-aif"))
+				plat_data->type = CODEC_AK4458;
+			else if (!strcmp(link->codecs->dai_name, "ak4497-aif"))
+				plat_data->type = CODEC_AK4497;
+			else if (!strcmp(link->codecs->dai_name, "ak5558-aif"))
+				plat_data->type = CODEC_AK5558;
+			else if (!strcmp(link->codecs->dai_name, "ak5552-aif"))
+				plat_data->type = CODEC_AK5552;
+
+		} else {
+			dlc = devm_kzalloc(dev, sizeof(*dlc), GFP_KERNEL);
+			if (!dlc) {
+				ret = -ENOMEM;
+				goto err;
+			}
+
+			link->codecs	 = dlc;
+			link->num_codecs = 1;
+
+			link->codecs->dai_name = "snd-soc-dummy-dai";
+			link->codecs->name = "snd-soc-dummy";
+		}
+
+		if (!strncmp(link->name, "HiFi-ASRC-FE", 12)) {
+			/* DPCM frontend */
+			link->dynamic = 1;
+			link->dpcm_merged_chan = 1;
+
+			ret = of_property_read_u32(args.np, "fsl,asrc-rate", &data->asrc_rate);
+			if (ret) {
+				dev_err(dev, "failed to get output rate\n");
+				ret = -EINVAL;
+				goto err;
+			}
+
+			ret = of_property_read_u32(args.np, "fsl,asrc-format", &asrc_fmt);
+			data->asrc_format = (__force snd_pcm_format_t)asrc_fmt;
+			if (ret) {
+				/* Fallback to old binding; translate to asrc_format */
+				ret = of_property_read_u32(args.np, "fsl,asrc-width", &width);
+				if (ret) {
+					dev_err(dev,
+						"failed to decide output format\n");
+					goto err;
+				}
+
+				if (width == 24)
+					data->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
+				else
+					data->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
+			}
+		} else if (!strncmp(link->name, "HiFi-ASRC-BE", 12)) {
+			/* DPCM backend */
+			link->no_pcm = 1;
+			link->platforms->of_node = NULL;
+			link->platforms->name = "snd-soc-dummy";
+
+			link->be_hw_params_fixup = be_hw_params_fixup;
+			link->ops = &imx_aif_ops_be;
+		} else {
+			link->ops = &imx_aif_ops;
+		}
+
+		if (link->no_pcm || link->dynamic)
+			snd_soc_dai_link_set_capabilities(link);
+
+		/* Get dai fmt */
+		ret = asoc_simple_parse_daifmt(dev, np, codec,
+					       NULL, &link->dai_fmt);
+		if (ret)
+			link->dai_fmt = SND_SOC_DAIFMT_NB_NF |
+					SND_SOC_DAIFMT_CBC_CFC |
+					SND_SOC_DAIFMT_I2S;
+
+		/* Get tdm slot */
+		snd_soc_of_parse_tdm_slot(np, NULL, NULL,
+					  &link_data->slots,
+					  &link_data->slot_width);
+		/* default value */
+		if (!link_data->slots)
+			link_data->slots = 2;
+
+		if (!link_data->slot_width)
+			link_data->slot_width = 32;
+
+		link->ignore_pmdown_time = 1;
+		link->stream_name = link->name;
+		link++;
+		link_data++;
+
+		of_node_put(cpu);
+		of_node_put(codec);
+		of_node_put(platform);
+
+		cpu = NULL;
+		codec = NULL;
+		platform = NULL;
+	}
+
+	return 0;
+err:
+	of_node_put(cpu);
+	of_node_put(codec);
+	of_node_put(platform);
+err_put_np:
+	of_node_put(np);
+	return ret;
+}
+
+static int imx_card_probe(struct platform_device *pdev)
+{
+	struct snd_soc_dai_link *link_be = NULL, *link;
+	struct imx_card_plat_data *plat_data;
+	struct imx_card_data *data;
+	int ret, i;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	plat_data = devm_kzalloc(&pdev->dev, sizeof(*plat_data), GFP_KERNEL);
+	if (!plat_data)
+		return -ENOMEM;
+
+	data->plat_data = plat_data;
+	data->card.dev = &pdev->dev;
+
+	dev_set_drvdata(&pdev->dev, &data->card);
+	snd_soc_card_set_drvdata(&data->card, data);
+	ret = imx_card_parse_of(data);
+	if (ret)
+		return ret;
+
+	data->num_dapm_routes = plat_data->num_codecs + 1;
+	data->dapm_routes = devm_kcalloc(&pdev->dev, data->num_dapm_routes,
+					 sizeof(struct snd_soc_dapm_route),
+					 GFP_KERNEL);
+	if (!data->dapm_routes)
+		return -ENOMEM;
+
+	/* configure the dapm routes */
+	switch (plat_data->type) {
+	case CODEC_AK4458:
+	case CODEC_AK4497:
+		if (plat_data->num_codecs == 1) {
+			data->dapm_routes[0].sink = "Playback";
+			data->dapm_routes[0].source = "CPU-Playback";
+			i = 1;
+		} else {
+			for (i = 0; i < plat_data->num_codecs; i++) {
+				data->dapm_routes[i].sink =
+					devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s",
+						       i + 1, "Playback");
+				data->dapm_routes[i].source = "CPU-Playback";
+			}
+		}
+		data->dapm_routes[i].sink = "CPU-Playback";
+		data->dapm_routes[i].source = "ASRC-Playback";
+		break;
+	case CODEC_AK5558:
+	case CODEC_AK5552:
+		if (plat_data->num_codecs == 1) {
+			data->dapm_routes[0].sink = "CPU-Capture";
+			data->dapm_routes[0].source = "Capture";
+			i = 1;
+		} else {
+			for (i = 0; i < plat_data->num_codecs; i++) {
+				data->dapm_routes[i].source =
+					devm_kasprintf(&pdev->dev, GFP_KERNEL, "%d %s",
+						       i + 1, "Capture");
+				data->dapm_routes[i].sink = "CPU-Capture";
+			}
+		}
+		data->dapm_routes[i].sink = "ASRC-Capture";
+		data->dapm_routes[i].source = "CPU-Capture";
+		break;
+	default:
+		break;
+	}
+
+	/* default platform data for akcodecs */
+	if (codec_is_akcodec(plat_data->type)) {
+		plat_data->support_rates = akcodec_rates;
+		plat_data->num_rates = ARRAY_SIZE(akcodec_rates);
+		plat_data->support_tdm_rates = akcodec_tdm_rates;
+		plat_data->num_tdm_rates = ARRAY_SIZE(akcodec_tdm_rates);
+
+		switch (plat_data->type) {
+		case CODEC_AK4458:
+			plat_data->fs_mul = ak4458_fs_mul;
+			plat_data->num_fs_mul = ARRAY_SIZE(ak4458_fs_mul);
+			plat_data->tdm_fs_mul = ak4458_tdm_fs_mul;
+			plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak4458_tdm_fs_mul);
+			plat_data->support_channels = ak4458_channels;
+			plat_data->num_channels = ARRAY_SIZE(ak4458_channels);
+			plat_data->support_tdm_channels = ak4458_tdm_channels;
+			plat_data->num_tdm_channels = ARRAY_SIZE(ak4458_tdm_channels);
+			break;
+		case CODEC_AK4497:
+			plat_data->fs_mul = ak4497_fs_mul;
+			plat_data->num_fs_mul = ARRAY_SIZE(ak4497_fs_mul);
+			plat_data->support_channels = ak4458_channels;
+			plat_data->num_channels = ARRAY_SIZE(ak4458_channels);
+			break;
+		case CODEC_AK5558:
+		case CODEC_AK5552:
+			plat_data->fs_mul = ak5558_fs_mul;
+			plat_data->num_fs_mul = ARRAY_SIZE(ak5558_fs_mul);
+			plat_data->tdm_fs_mul = ak5558_tdm_fs_mul;
+			plat_data->num_tdm_fs_mul = ARRAY_SIZE(ak5558_tdm_fs_mul);
+			plat_data->support_channels = ak5558_channels;
+			plat_data->num_channels = ARRAY_SIZE(ak5558_channels);
+			plat_data->support_tdm_channels = ak5558_tdm_channels;
+			plat_data->num_tdm_channels = ARRAY_SIZE(ak5558_tdm_channels);
+			break;
+		default:
+			break;
+		}
+	}
+
+	/* with asrc as front end */
+	if (data->card.num_links == 3) {
+		data->card.dapm_routes = data->dapm_routes;
+		data->card.num_dapm_routes = data->num_dapm_routes;
+		for_each_card_prelinks(&data->card, i, link) {
+			if (link->no_pcm == 1)
+				link_be = link;
+		}
+		for_each_card_prelinks(&data->card, i, link) {
+			if (link->dynamic == 1 && link_be) {
+				link->dpcm_playback = link_be->dpcm_playback;
+				link->dpcm_capture = link_be->dpcm_capture;
+			}
+		}
+	}
+
+	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
+	if (ret)
+		return dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");
+
+	return 0;
+}
+
+static const struct of_device_id imx_card_dt_ids[] = {
+	{ .compatible = "fsl,imx-audio-card", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, imx_card_dt_ids);
+
+static struct platform_driver imx_card_driver = {
+	.driver = {
+		.name = "imx-card",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = imx_card_dt_ids,
+	},
+	.probe = imx_card_probe,
+};
+module_platform_driver(imx_card_driver);
+
+MODULE_DESCRIPTION("Freescale i.MX ASoC Machine Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:imx-card");
diff --git a/sound/soc/fsl/imx-es8328.c b/sound/soc/fsl/imx-es8328.c
new file mode 100644
index 000000000..b80c57362
--- /dev/null
+++ b/sound/soc/fsl/imx-es8328.c
@@ -0,0 +1,231 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2012 Freescale Semiconductor, Inc.
+// Copyright 2012 Linaro Ltd.
+
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/i2c.h>
+#include <linux/of_gpio.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "imx-audmux.h"
+
+#define DAI_NAME_SIZE	32
+#define MUX_PORT_MAX	7
+
+struct imx_es8328_data {
+	struct device *dev;
+	struct snd_soc_dai_link dai;
+	struct snd_soc_card card;
+	char codec_dai_name[DAI_NAME_SIZE];
+	char platform_name[DAI_NAME_SIZE];
+	int jack_gpio;
+};
+
+static struct snd_soc_jack_gpio headset_jack_gpios[] = {
+	{
+		.gpio = -1,
+		.name = "headset-gpio",
+		.report = SND_JACK_HEADSET,
+		.invert = 0,
+		.debounce_time = 200,
+	},
+};
+
+static struct snd_soc_jack headset_jack;
+
+static int imx_es8328_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct imx_es8328_data *data = container_of(rtd->card,
+					struct imx_es8328_data, card);
+	int ret = 0;
+
+	/* Headphone jack detection */
+	if (gpio_is_valid(data->jack_gpio)) {
+		ret = snd_soc_card_jack_new(rtd->card, "Headphone",
+					    SND_JACK_HEADPHONE | SND_JACK_BTN_0,
+					    &headset_jack);
+		if (ret)
+			return ret;
+
+		headset_jack_gpios[0].gpio = data->jack_gpio;
+		ret = snd_soc_jack_add_gpios(&headset_jack,
+					     ARRAY_SIZE(headset_jack_gpios),
+					     headset_jack_gpios);
+	}
+
+	return ret;
+}
+
+static const struct snd_soc_dapm_widget imx_es8328_dapm_widgets[] = {
+	SND_SOC_DAPM_MIC("Mic Jack", NULL),
+	SND_SOC_DAPM_HP("Headphone", NULL),
+	SND_SOC_DAPM_SPK("Speaker", NULL),
+	SND_SOC_DAPM_REGULATOR_SUPPLY("audio-amp", 1, 0),
+};
+
+static int imx_es8328_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *ssi_np = NULL, *codec_np = NULL;
+	struct platform_device *ssi_pdev;
+	struct imx_es8328_data *data;
+	struct snd_soc_dai_link_component *comp;
+	u32 int_port, ext_port;
+	int ret;
+	struct device *dev = &pdev->dev;
+
+	ret = of_property_read_u32(np, "mux-int-port", &int_port);
+	if (ret) {
+		dev_err(dev, "mux-int-port missing or invalid\n");
+		goto fail;
+	}
+	if (int_port > MUX_PORT_MAX || int_port == 0) {
+		dev_err(dev, "mux-int-port: hardware only has %d mux ports\n",
+			MUX_PORT_MAX);
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
+	if (ret) {
+		dev_err(dev, "mux-ext-port missing or invalid\n");
+		goto fail;
+	}
+	if (ext_port > MUX_PORT_MAX || ext_port == 0) {
+		dev_err(dev, "mux-ext-port: hardware only has %d mux ports\n",
+			MUX_PORT_MAX);
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	/*
+	 * The port numbering in the hardware manual starts at 1, while
+	 * the audmux API expects it starts at 0.
+	 */
+	int_port--;
+	ext_port--;
+	ret = imx_audmux_v2_configure_port(int_port,
+			IMX_AUDMUX_V2_PTCR_SYN |
+			IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
+			IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
+			IMX_AUDMUX_V2_PTCR_TFSDIR |
+			IMX_AUDMUX_V2_PTCR_TCLKDIR,
+			IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
+	if (ret) {
+		dev_err(dev, "audmux internal port setup failed\n");
+		return ret;
+	}
+	ret = imx_audmux_v2_configure_port(ext_port,
+			IMX_AUDMUX_V2_PTCR_SYN,
+			IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
+	if (ret) {
+		dev_err(dev, "audmux external port setup failed\n");
+		return ret;
+	}
+
+	ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0);
+	codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
+	if (!ssi_np || !codec_np) {
+		dev_err(dev, "phandle missing or invalid\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	ssi_pdev = of_find_device_by_node(ssi_np);
+	if (!ssi_pdev) {
+		dev_err(dev, "failed to find SSI platform device\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		ret = -ENOMEM;
+		goto put_device;
+	}
+
+	comp = devm_kzalloc(dev, 3 * sizeof(*comp), GFP_KERNEL);
+	if (!comp) {
+		ret = -ENOMEM;
+		goto put_device;
+	}
+
+	data->dev = dev;
+
+	data->jack_gpio = of_get_named_gpio(pdev->dev.of_node, "jack-gpio", 0);
+
+	data->dai.cpus		= &comp[0];
+	data->dai.codecs	= &comp[1];
+	data->dai.platforms	= &comp[2];
+
+	data->dai.num_cpus	= 1;
+	data->dai.num_codecs	= 1;
+	data->dai.num_platforms	= 1;
+
+	data->dai.name = "hifi";
+	data->dai.stream_name = "hifi";
+	data->dai.codecs->dai_name = "es8328-hifi-analog";
+	data->dai.codecs->of_node = codec_np;
+	data->dai.cpus->of_node = ssi_np;
+	data->dai.platforms->of_node = ssi_np;
+	data->dai.init = &imx_es8328_dai_init;
+	data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			    SND_SOC_DAIFMT_CBP_CFP;
+
+	data->card.dev = dev;
+	data->card.dapm_widgets = imx_es8328_dapm_widgets;
+	data->card.num_dapm_widgets = ARRAY_SIZE(imx_es8328_dapm_widgets);
+	ret = snd_soc_of_parse_card_name(&data->card, "model");
+	if (ret) {
+		dev_err(dev, "Unable to parse card name\n");
+		goto put_device;
+	}
+	ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
+	if (ret) {
+		dev_err(dev, "Unable to parse routing: %d\n", ret);
+		goto put_device;
+	}
+	data->card.num_links = 1;
+	data->card.owner = THIS_MODULE;
+	data->card.dai_link = &data->dai;
+
+	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
+	if (ret) {
+		dev_err(dev, "Unable to register: %d\n", ret);
+		goto put_device;
+	}
+
+	platform_set_drvdata(pdev, data);
+put_device:
+	put_device(&ssi_pdev->dev);
+fail:
+	of_node_put(ssi_np);
+	of_node_put(codec_np);
+
+	return ret;
+}
+
+static const struct of_device_id imx_es8328_dt_ids[] = {
+	{ .compatible = "fsl,imx-audio-es8328", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_es8328_dt_ids);
+
+static struct platform_driver imx_es8328_driver = {
+	.driver = {
+		.name = "imx-es8328",
+		.of_match_table = imx_es8328_dt_ids,
+	},
+	.probe = imx_es8328_probe,
+};
+module_platform_driver(imx_es8328_driver);
+
+MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");
+MODULE_DESCRIPTION("Kosagi i.MX6 ES8328 ASoC machine driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:imx-audio-es8328");
diff --git a/sound/soc/fsl/imx-hdmi.c b/sound/soc/fsl/imx-hdmi.c
new file mode 100644
index 000000000..a780cf5a6
--- /dev/null
+++ b/sound/soc/fsl/imx-hdmi.c
@@ -0,0 +1,235 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright 2017-2020 NXP
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <sound/jack.h>
+#include <sound/pcm_params.h>
+#include <sound/hdmi-codec.h>
+#include "fsl_sai.h"
+
+/**
+ * struct cpu_priv - CPU private data
+ * @sysclk_id: SYSCLK ids for set_sysclk()
+ * @slot_width: Slot width of each frame
+ *
+ * Note: [1] for tx and [0] for rx
+ */
+struct cpu_priv {
+	u32 sysclk_id[2];
+	u32 slot_width;
+};
+
+struct imx_hdmi_data {
+	struct snd_soc_dai_link dai;
+	struct snd_soc_card card;
+	struct snd_soc_jack hdmi_jack;
+	struct snd_soc_jack_pin hdmi_jack_pin;
+	struct cpu_priv cpu_priv;
+	u32 dai_fmt;
+};
+
+static int imx_hdmi_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct imx_hdmi_data *data = snd_soc_card_get_drvdata(rtd->card);
+	bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct snd_soc_card *card = rtd->card;
+	struct device *dev = card->dev;
+	u32 slot_width = data->cpu_priv.slot_width;
+	int ret;
+
+	/* MCLK always is (256 or 192) * rate. */
+	ret = snd_soc_dai_set_sysclk(cpu_dai, data->cpu_priv.sysclk_id[tx],
+				     8 * slot_width * params_rate(params),
+				     tx ? SND_SOC_CLOCK_OUT : SND_SOC_CLOCK_IN);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dev, "failed to set cpu sysclk: %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0, 2, slot_width);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dev, "failed to set cpu dai tdm slot: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_ops imx_hdmi_ops = {
+	.hw_params = imx_hdmi_hw_params,
+};
+
+static const struct snd_soc_dapm_widget imx_hdmi_widgets[] = {
+	SND_SOC_DAPM_LINE("HDMI Jack", NULL),
+};
+
+static int imx_hdmi_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_card *card = rtd->card;
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct snd_soc_component *component = codec_dai->component;
+	struct imx_hdmi_data *data = snd_soc_card_get_drvdata(card);
+	int ret;
+
+	data->hdmi_jack_pin.pin = "HDMI Jack";
+	data->hdmi_jack_pin.mask = SND_JACK_LINEOUT;
+	/* enable jack detection */
+	ret = snd_soc_card_jack_new_pins(card, "HDMI Jack", SND_JACK_LINEOUT,
+					 &data->hdmi_jack,
+					 &data->hdmi_jack_pin, 1);
+	if (ret) {
+		dev_err(card->dev, "Can't new HDMI Jack %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_component_set_jack(component, &data->hdmi_jack, NULL);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(card->dev, "Can't set HDMI Jack %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+};
+
+static int imx_hdmi_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	bool hdmi_out = of_property_read_bool(np, "hdmi-out");
+	bool hdmi_in = of_property_read_bool(np, "hdmi-in");
+	struct snd_soc_dai_link_component *dlc;
+	struct platform_device *cpu_pdev;
+	struct device_node *cpu_np;
+	struct imx_hdmi_data *data;
+	int ret;
+
+	dlc = devm_kzalloc(&pdev->dev, 3 * sizeof(*dlc), GFP_KERNEL);
+	if (!dlc)
+		return -ENOMEM;
+
+	cpu_np = of_parse_phandle(np, "audio-cpu", 0);
+	if (!cpu_np) {
+		dev_err(&pdev->dev, "cpu dai phandle missing or invalid\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	cpu_pdev = of_find_device_by_node(cpu_np);
+	if (!cpu_pdev) {
+		dev_err(&pdev->dev, "failed to find SAI platform device\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		ret = -ENOMEM;
+		put_device(&cpu_pdev->dev);
+		goto fail;
+	}
+
+	data->dai.cpus = &dlc[0];
+	data->dai.num_cpus = 1;
+	data->dai.platforms = &dlc[1];
+	data->dai.num_platforms = 1;
+	data->dai.codecs = &dlc[2];
+	data->dai.num_codecs = 1;
+
+	data->dai.name = "i.MX HDMI";
+	data->dai.stream_name = "i.MX HDMI";
+	data->dai.cpus->dai_name = dev_name(&cpu_pdev->dev);
+	data->dai.platforms->of_node = cpu_np;
+	data->dai.ops = &imx_hdmi_ops;
+	data->dai.playback_only = true;
+	data->dai.capture_only = false;
+	data->dai.init = imx_hdmi_init;
+
+	put_device(&cpu_pdev->dev);
+
+	if (of_node_name_eq(cpu_np, "sai")) {
+		data->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
+		data->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
+	}
+
+	if (of_device_is_compatible(np, "fsl,imx-audio-sii902x")) {
+		data->dai_fmt = SND_SOC_DAIFMT_LEFT_J;
+		data->cpu_priv.slot_width = 24;
+	} else {
+		data->dai_fmt = SND_SOC_DAIFMT_I2S;
+		data->cpu_priv.slot_width = 32;
+	}
+
+	if ((hdmi_out && hdmi_in) || (!hdmi_out && !hdmi_in)) {
+		dev_err(&pdev->dev, "Invalid HDMI DAI link\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	if (hdmi_out) {
+		data->dai.playback_only = true;
+		data->dai.capture_only = false;
+		data->dai.codecs->dai_name = "i2s-hifi";
+		data->dai.codecs->name = "hdmi-audio-codec.1";
+		data->dai.dai_fmt = data->dai_fmt |
+				    SND_SOC_DAIFMT_NB_NF |
+				    SND_SOC_DAIFMT_CBC_CFC;
+	}
+
+	if (hdmi_in) {
+		data->dai.playback_only = false;
+		data->dai.capture_only = true;
+		data->dai.codecs->dai_name = "i2s-hifi";
+		data->dai.codecs->name = "hdmi-audio-codec.2";
+		data->dai.dai_fmt = data->dai_fmt |
+				    SND_SOC_DAIFMT_NB_NF |
+				    SND_SOC_DAIFMT_CBP_CFP;
+	}
+
+	data->card.dapm_widgets = imx_hdmi_widgets;
+	data->card.num_dapm_widgets = ARRAY_SIZE(imx_hdmi_widgets);
+	data->card.dev = &pdev->dev;
+	data->card.owner = THIS_MODULE;
+	ret = snd_soc_of_parse_card_name(&data->card, "model");
+	if (ret)
+		goto fail;
+
+	data->card.num_links = 1;
+	data->card.dai_link = &data->dai;
+
+	snd_soc_card_set_drvdata(&data->card, data);
+	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
+	if (ret) {
+		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+		goto fail;
+	}
+
+fail:
+	of_node_put(cpu_np);
+
+	return ret;
+}
+
+static const struct of_device_id imx_hdmi_dt_ids[] = {
+	{ .compatible = "fsl,imx-audio-hdmi", },
+	{ .compatible = "fsl,imx-audio-sii902x", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_hdmi_dt_ids);
+
+static struct platform_driver imx_hdmi_driver = {
+	.driver = {
+		.name = "imx-hdmi",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = imx_hdmi_dt_ids,
+	},
+	.probe = imx_hdmi_probe,
+};
+module_platform_driver(imx_hdmi_driver);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Freescale i.MX hdmi audio ASoC machine driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:imx-hdmi");
diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c
new file mode 100644
index 000000000..14e942709
--- /dev/null
+++ b/sound/soc/fsl/imx-pcm-dma.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * imx-pcm-dma-mx2.c  --  ALSA Soc Audio Layer
+ *
+ * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * This code is based on code copyrighted by Freescale,
+ * Liam Girdwood, Javier Martin and probably others.
+ */
+#include <linux/platform_device.h>
+#include <linux/dmaengine.h>
+#include <linux/types.h>
+#include <linux/module.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/dmaengine_pcm.h>
+
+#include "imx-pcm.h"
+
+static bool filter(struct dma_chan *chan, void *param)
+{
+	if (!imx_dma_is_general_purpose(chan))
+		return false;
+
+	chan->private = param;
+
+	return true;
+}
+
+static const struct snd_dmaengine_pcm_config imx_dmaengine_pcm_config = {
+	.prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
+	.compat_filter_fn = filter,
+};
+
+int imx_pcm_dma_init(struct platform_device *pdev)
+{
+	struct snd_dmaengine_pcm_config *config;
+
+	config = devm_kzalloc(&pdev->dev,
+			sizeof(struct snd_dmaengine_pcm_config), GFP_KERNEL);
+	if (!config)
+		return -ENOMEM;
+	*config = imx_dmaengine_pcm_config;
+
+	return devm_snd_dmaengine_pcm_register(&pdev->dev,
+		config,
+		SND_DMAENGINE_PCM_FLAG_COMPAT);
+}
+EXPORT_SYMBOL_GPL(imx_pcm_dma_init);
+
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
new file mode 100644
index 000000000..0d1240026
--- /dev/null
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0+
+// imx-pcm-fiq.c  --  ALSA Soc Audio Layer
+//
+// Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
+//
+// This code is based on code copyrighted by Freescale,
+// Liam Girdwood, Javier Martin and probably others.
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <asm/fiq.h>
+
+#include <linux/platform_data/asoc-imx-ssi.h>
+
+#include "imx-ssi.h"
+#include "imx-pcm.h"
+
+struct imx_pcm_runtime_data {
+	unsigned int period;
+	int periods;
+	unsigned long offset;
+	struct hrtimer hrt;
+	int poll_time_ns;
+	struct snd_pcm_substream *substream;
+	atomic_t playing;
+	atomic_t capturing;
+};
+
+static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
+{
+	struct imx_pcm_runtime_data *iprtd =
+		container_of(hrt, struct imx_pcm_runtime_data, hrt);
+	struct snd_pcm_substream *substream = iprtd->substream;
+	struct pt_regs regs;
+
+	if (!atomic_read(&iprtd->playing) && !atomic_read(&iprtd->capturing))
+		return HRTIMER_NORESTART;
+
+	get_fiq_regs(&regs);
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		iprtd->offset = regs.ARM_r8 & 0xffff;
+	else
+		iprtd->offset = regs.ARM_r9 & 0xffff;
+
+	snd_pcm_period_elapsed(substream);
+
+	hrtimer_forward_now(hrt, ns_to_ktime(iprtd->poll_time_ns));
+
+	return HRTIMER_RESTART;
+}
+
+static struct fiq_handler fh = {
+	.name		= DRV_NAME,
+};
+
+static int snd_imx_pcm_hw_params(struct snd_soc_component *component,
+				 struct snd_pcm_substream *substream,
+				 struct snd_pcm_hw_params *params)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
+
+	iprtd->periods = params_periods(params);
+	iprtd->period = params_period_bytes(params);
+	iprtd->offset = 0;
+	iprtd->poll_time_ns = 1000000000 / params_rate(params) *
+				params_period_size(params);
+
+	return 0;
+}
+
+static int snd_imx_pcm_prepare(struct snd_soc_component *component,
+			       struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
+	struct pt_regs regs;
+
+	get_fiq_regs(&regs);
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		regs.ARM_r8 = (iprtd->period * iprtd->periods - 1) << 16;
+	else
+		regs.ARM_r9 = (iprtd->period * iprtd->periods - 1) << 16;
+
+	set_fiq_regs(&regs);
+
+	return 0;
+}
+
+static int imx_pcm_fiq;
+
+static int snd_imx_pcm_trigger(struct snd_soc_component *component,
+			       struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			atomic_set(&iprtd->playing, 1);
+		else
+			atomic_set(&iprtd->capturing, 1);
+		hrtimer_start(&iprtd->hrt, ns_to_ktime(iprtd->poll_time_ns),
+		      HRTIMER_MODE_REL);
+		enable_fiq(imx_pcm_fiq);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			atomic_set(&iprtd->playing, 0);
+		else
+			atomic_set(&iprtd->capturing, 0);
+		if (!atomic_read(&iprtd->playing) &&
+				!atomic_read(&iprtd->capturing))
+			disable_fiq(imx_pcm_fiq);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static snd_pcm_uframes_t
+snd_imx_pcm_pointer(struct snd_soc_component *component,
+		    struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
+
+	return bytes_to_frames(substream->runtime, iprtd->offset);
+}
+
+static const struct snd_pcm_hardware snd_imx_hardware = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_MMAP |
+		SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_PAUSE |
+		SNDRV_PCM_INFO_RESUME,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	.buffer_bytes_max = IMX_SSI_DMABUF_SIZE,
+	.period_bytes_min = 128,
+	.period_bytes_max = 16 * 1024,
+	.periods_min = 4,
+	.periods_max = 255,
+	.fifo_size = 0,
+};
+
+static int snd_imx_open(struct snd_soc_component *component,
+			struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct imx_pcm_runtime_data *iprtd;
+	int ret;
+
+	iprtd = kzalloc(sizeof(*iprtd), GFP_KERNEL);
+	if (iprtd == NULL)
+		return -ENOMEM;
+	runtime->private_data = iprtd;
+
+	iprtd->substream = substream;
+
+	atomic_set(&iprtd->playing, 0);
+	atomic_set(&iprtd->capturing, 0);
+	hrtimer_init(&iprtd->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	iprtd->hrt.function = snd_hrtimer_callback;
+
+	ret = snd_pcm_hw_constraint_integer(substream->runtime,
+			SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0) {
+		kfree(iprtd);
+		return ret;
+	}
+
+	snd_soc_set_runtime_hwparams(substream, &snd_imx_hardware);
+	return 0;
+}
+
+static int snd_imx_close(struct snd_soc_component *component,
+			 struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
+
+	hrtimer_cancel(&iprtd->hrt);
+
+	kfree(iprtd);
+
+	return 0;
+}
+
+static int imx_pcm_new(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_card *card = rtd->card->snd_card;
+	struct snd_pcm *pcm = rtd->pcm;
+	int ret;
+
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_WC,
+					    pcm->card->dev,
+					    IMX_SSI_DMABUF_SIZE);
+}
+
+static int ssi_irq;
+
+static int snd_imx_pcm_new(struct snd_soc_component *component,
+			   struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_pcm *pcm = rtd->pcm;
+	struct snd_pcm_substream *substream;
+	int ret;
+
+	ret = imx_pcm_new(rtd);
+	if (ret)
+		return ret;
+
+	substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+	if (substream) {
+		struct snd_dma_buffer *buf = &substream->dma_buffer;
+
+		imx_ssi_fiq_tx_buffer = (unsigned long)buf->area;
+	}
+
+	substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream;
+	if (substream) {
+		struct snd_dma_buffer *buf = &substream->dma_buffer;
+
+		imx_ssi_fiq_rx_buffer = (unsigned long)buf->area;
+	}
+
+	set_fiq_handler(&imx_ssi_fiq_start,
+		&imx_ssi_fiq_end - &imx_ssi_fiq_start);
+
+	return 0;
+}
+
+static void snd_imx_pcm_free(struct snd_soc_component *component,
+			     struct snd_pcm *pcm)
+{
+	mxc_set_irq_fiq(ssi_irq, 0);
+	release_fiq(&fh);
+}
+
+static const struct snd_soc_component_driver imx_soc_component_fiq = {
+	.open		= snd_imx_open,
+	.close		= snd_imx_close,
+	.hw_params	= snd_imx_pcm_hw_params,
+	.prepare	= snd_imx_pcm_prepare,
+	.trigger	= snd_imx_pcm_trigger,
+	.pointer	= snd_imx_pcm_pointer,
+	.pcm_construct	= snd_imx_pcm_new,
+	.pcm_destruct	= snd_imx_pcm_free,
+};
+
+int imx_pcm_fiq_init(struct platform_device *pdev,
+		struct imx_pcm_fiq_params *params)
+{
+	int ret;
+
+	ret = claim_fiq(&fh);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to claim fiq: %d", ret);
+		return ret;
+	}
+
+	mxc_set_irq_fiq(params->irq, 1);
+	ssi_irq = params->irq;
+
+	imx_pcm_fiq = params->irq;
+
+	imx_ssi_fiq_base = (unsigned long)params->base;
+
+	params->dma_params_tx->maxburst = 4;
+	params->dma_params_rx->maxburst = 6;
+
+	ret = devm_snd_soc_register_component(&pdev->dev, &imx_soc_component_fiq,
+					      NULL, 0);
+	if (ret)
+		goto failed_register;
+
+	return 0;
+
+failed_register:
+	mxc_set_irq_fiq(ssi_irq, 0);
+	release_fiq(&fh);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(imx_pcm_fiq_init);
+
+void imx_pcm_fiq_exit(struct platform_device *pdev)
+{
+}
+EXPORT_SYMBOL_GPL(imx_pcm_fiq_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/fsl/imx-pcm-rpmsg.c b/sound/soc/fsl/imx-pcm-rpmsg.c
new file mode 100644
index 000000000..933bac7ea
--- /dev/null
+++ b/sound/soc/fsl/imx-pcm-rpmsg.c
@@ -0,0 +1,834 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2017-2021 NXP
+
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/rpmsg.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/soc.h>
+
+#include "imx-pcm.h"
+#include "fsl_rpmsg.h"
+#include "imx-pcm-rpmsg.h"
+
+static struct snd_pcm_hardware imx_rpmsg_pcm_hardware = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_BATCH |
+		SNDRV_PCM_INFO_MMAP |
+		SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_NO_PERIOD_WAKEUP |
+		SNDRV_PCM_INFO_PAUSE |
+		SNDRV_PCM_INFO_RESUME,
+	.buffer_bytes_max = IMX_DEFAULT_DMABUF_SIZE,
+	.period_bytes_min = 512,
+	.period_bytes_max = 65536,
+	.periods_min = 2,
+	.periods_max = 6000,
+	.fifo_size = 0,
+};
+
+static int imx_rpmsg_pcm_send_message(struct rpmsg_msg *msg,
+				      struct rpmsg_info *info)
+{
+	struct rpmsg_device *rpdev = info->rpdev;
+	int ret = 0;
+
+	mutex_lock(&info->msg_lock);
+	if (!rpdev) {
+		dev_err(info->dev, "rpmsg channel not ready\n");
+		mutex_unlock(&info->msg_lock);
+		return -EINVAL;
+	}
+
+	dev_dbg(&rpdev->dev, "send cmd %d\n", msg->s_msg.header.cmd);
+
+	if (!(msg->s_msg.header.type == MSG_TYPE_C))
+		reinit_completion(&info->cmd_complete);
+
+	ret = rpmsg_send(rpdev->ept, (void *)&msg->s_msg,
+			 sizeof(struct rpmsg_s_msg));
+	if (ret) {
+		dev_err(&rpdev->dev, "rpmsg_send failed: %d\n", ret);
+		mutex_unlock(&info->msg_lock);
+		return ret;
+	}
+
+	/* No receive msg for TYPE_C command */
+	if (msg->s_msg.header.type == MSG_TYPE_C) {
+		mutex_unlock(&info->msg_lock);
+		return 0;
+	}
+
+	/* wait response from rpmsg */
+	ret = wait_for_completion_timeout(&info->cmd_complete,
+					  msecs_to_jiffies(RPMSG_TIMEOUT));
+	if (!ret) {
+		dev_err(&rpdev->dev, "rpmsg_send cmd %d timeout!\n",
+			msg->s_msg.header.cmd);
+		mutex_unlock(&info->msg_lock);
+		return -ETIMEDOUT;
+	}
+
+	memcpy(&msg->r_msg, &info->r_msg, sizeof(struct rpmsg_r_msg));
+	memcpy(&info->msg[msg->r_msg.header.cmd].r_msg,
+	       &msg->r_msg, sizeof(struct rpmsg_r_msg));
+
+	/*
+	 * Reset the buffer pointer to be zero, actully we have
+	 * set the buffer pointer to be zero in imx_rpmsg_terminate_all
+	 * But if there is timer task queued in queue, after it is
+	 * executed the buffer pointer will be changed, so need to
+	 * reset it again with TERMINATE command.
+	 */
+	switch (msg->s_msg.header.cmd) {
+	case TX_TERMINATE:
+		info->msg[TX_POINTER].r_msg.param.buffer_offset = 0;
+		break;
+	case RX_TERMINATE:
+		info->msg[RX_POINTER].r_msg.param.buffer_offset = 0;
+		break;
+	default:
+		break;
+	}
+
+	dev_dbg(&rpdev->dev, "cmd:%d, resp %d\n", msg->s_msg.header.cmd,
+		info->r_msg.param.resp);
+
+	mutex_unlock(&info->msg_lock);
+
+	return 0;
+}
+
+static int imx_rpmsg_insert_workqueue(struct snd_pcm_substream *substream,
+				      struct rpmsg_msg *msg,
+				      struct rpmsg_info *info)
+{
+	unsigned long flags;
+	int ret = 0;
+
+	/*
+	 * Queue the work to workqueue.
+	 * If the queue is full, drop the message.
+	 */
+	spin_lock_irqsave(&info->wq_lock, flags);
+	if (info->work_write_index != info->work_read_index) {
+		int index = info->work_write_index;
+
+		memcpy(&info->work_list[index].msg, msg,
+		       sizeof(struct rpmsg_s_msg));
+
+		queue_work(info->rpmsg_wq, &info->work_list[index].work);
+		info->work_write_index++;
+		info->work_write_index %= WORK_MAX_NUM;
+	} else {
+		info->msg_drop_count[substream->stream]++;
+		ret = -EPIPE;
+	}
+	spin_unlock_irqrestore(&info->wq_lock, flags);
+
+	return ret;
+}
+
+static int imx_rpmsg_pcm_hw_params(struct snd_soc_component *component,
+				   struct snd_pcm_substream *substream,
+				   struct snd_pcm_hw_params *params)
+{
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	struct rpmsg_msg *msg;
+	int ret = 0;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_HW_PARAM];
+		msg->s_msg.header.cmd = TX_HW_PARAM;
+	} else {
+		msg = &info->msg[RX_HW_PARAM];
+		msg->s_msg.header.cmd = RX_HW_PARAM;
+	}
+
+	msg->s_msg.param.rate = params_rate(params);
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		msg->s_msg.param.format   = RPMSG_S16_LE;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		msg->s_msg.param.format   = RPMSG_S24_LE;
+		break;
+	case SNDRV_PCM_FORMAT_DSD_U16_LE:
+		msg->s_msg.param.format   = RPMSG_DSD_U16_LE;
+		break;
+	case SNDRV_PCM_FORMAT_DSD_U32_LE:
+		msg->s_msg.param.format   = RPMSG_DSD_U32_LE;
+		break;
+	default:
+		msg->s_msg.param.format   = RPMSG_S32_LE;
+		break;
+	}
+
+	switch (params_channels(params)) {
+	case 1:
+		msg->s_msg.param.channels = RPMSG_CH_LEFT;
+		break;
+	case 2:
+		msg->s_msg.param.channels = RPMSG_CH_STEREO;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	info->send_message(msg, info);
+
+	return ret;
+}
+
+static snd_pcm_uframes_t imx_rpmsg_pcm_pointer(struct snd_soc_component *component,
+					       struct snd_pcm_substream *substream)
+{
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	struct rpmsg_msg *msg;
+	unsigned int pos = 0;
+	int buffer_tail = 0;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM];
+	else
+		msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM];
+
+	buffer_tail = msg->r_msg.param.buffer_tail;
+	pos = buffer_tail * snd_pcm_lib_period_bytes(substream);
+
+	return bytes_to_frames(substream->runtime, pos);
+}
+
+static void imx_rpmsg_timer_callback(struct timer_list *t)
+{
+	struct stream_timer  *stream_timer =
+			from_timer(stream_timer, t, timer);
+	struct snd_pcm_substream *substream = stream_timer->substream;
+	struct rpmsg_info *info = stream_timer->info;
+	struct rpmsg_msg *msg;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM];
+		msg->s_msg.header.cmd = TX_PERIOD_DONE;
+	} else {
+		msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM];
+		msg->s_msg.header.cmd = RX_PERIOD_DONE;
+	}
+
+	imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_pcm_open(struct snd_soc_component *component,
+			      struct snd_pcm_substream *substream)
+{
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	struct rpmsg_msg *msg;
+	int ret = 0;
+	int cmd;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_OPEN];
+		msg->s_msg.header.cmd = TX_OPEN;
+
+		/* reinitialize buffer counter*/
+		cmd = TX_PERIOD_DONE + MSG_TYPE_A_NUM;
+		info->msg[cmd].s_msg.param.buffer_tail = 0;
+		info->msg[cmd].r_msg.param.buffer_tail = 0;
+		info->msg[TX_POINTER].r_msg.param.buffer_offset = 0;
+
+	} else {
+		msg = &info->msg[RX_OPEN];
+		msg->s_msg.header.cmd = RX_OPEN;
+
+		/* reinitialize buffer counter*/
+		cmd = RX_PERIOD_DONE + MSG_TYPE_A_NUM;
+		info->msg[cmd].s_msg.param.buffer_tail = 0;
+		info->msg[cmd].r_msg.param.buffer_tail = 0;
+		info->msg[RX_POINTER].r_msg.param.buffer_offset = 0;
+	}
+
+	info->send_message(msg, info);
+
+	imx_rpmsg_pcm_hardware.period_bytes_max =
+			imx_rpmsg_pcm_hardware.buffer_bytes_max / 2;
+
+	snd_soc_set_runtime_hwparams(substream, &imx_rpmsg_pcm_hardware);
+
+	ret = snd_pcm_hw_constraint_integer(substream->runtime,
+					    SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0)
+		return ret;
+
+	info->msg_drop_count[substream->stream] = 0;
+
+	/* Create timer*/
+	info->stream_timer[substream->stream].info = info;
+	info->stream_timer[substream->stream].substream = substream;
+	timer_setup(&info->stream_timer[substream->stream].timer,
+		    imx_rpmsg_timer_callback, 0);
+	return ret;
+}
+
+static int imx_rpmsg_pcm_close(struct snd_soc_component *component,
+			       struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	struct rpmsg_msg *msg;
+	int ret = 0;
+
+	/* Flush work in workqueue to make TX_CLOSE is the last message */
+	flush_workqueue(info->rpmsg_wq);
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_CLOSE];
+		msg->s_msg.header.cmd = TX_CLOSE;
+	} else {
+		msg = &info->msg[RX_CLOSE];
+		msg->s_msg.header.cmd = RX_CLOSE;
+	}
+
+	info->send_message(msg, info);
+
+	del_timer(&info->stream_timer[substream->stream].timer);
+
+	rtd->dai_link->ignore_suspend = 0;
+
+	if (info->msg_drop_count[substream->stream])
+		dev_warn(rtd->dev, "Msg is dropped!, number is %d\n",
+			 info->msg_drop_count[substream->stream]);
+
+	return ret;
+}
+
+static int imx_rpmsg_pcm_prepare(struct snd_soc_component *component,
+				 struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct fsl_rpmsg *rpmsg = dev_get_drvdata(cpu_dai->dev);
+
+	/*
+	 * NON-MMAP mode, NONBLOCK, Version 2, enable lpa in dts
+	 * four conditions to determine the lpa is enabled.
+	 */
+	if ((runtime->access == SNDRV_PCM_ACCESS_RW_INTERLEAVED ||
+	     runtime->access == SNDRV_PCM_ACCESS_RW_NONINTERLEAVED) &&
+	     rpmsg->enable_lpa) {
+		/*
+		 * Ignore suspend operation in low power mode
+		 * M core will continue playback music on A core suspend.
+		 */
+		rtd->dai_link->ignore_suspend = 1;
+		rpmsg->force_lpa = 1;
+	} else {
+		rpmsg->force_lpa = 0;
+	}
+
+	return 0;
+}
+
+static void imx_rpmsg_pcm_dma_complete(void *arg)
+{
+	struct snd_pcm_substream *substream = arg;
+
+	snd_pcm_period_elapsed(substream);
+}
+
+static int imx_rpmsg_prepare_and_submit(struct snd_soc_component *component,
+					struct snd_pcm_substream *substream)
+{
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	struct rpmsg_msg *msg;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_BUFFER];
+		msg->s_msg.header.cmd = TX_BUFFER;
+	} else {
+		msg = &info->msg[RX_BUFFER];
+		msg->s_msg.header.cmd = RX_BUFFER;
+	}
+
+	/* Send buffer address and buffer size */
+	msg->s_msg.param.buffer_addr = substream->runtime->dma_addr;
+	msg->s_msg.param.buffer_size = snd_pcm_lib_buffer_bytes(substream);
+	msg->s_msg.param.period_size = snd_pcm_lib_period_bytes(substream);
+	msg->s_msg.param.buffer_tail = 0;
+
+	info->num_period[substream->stream] = msg->s_msg.param.buffer_size /
+					      msg->s_msg.param.period_size;
+
+	info->callback[substream->stream] = imx_rpmsg_pcm_dma_complete;
+	info->callback_param[substream->stream] = substream;
+
+	return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_async_issue_pending(struct snd_soc_component *component,
+					 struct snd_pcm_substream *substream)
+{
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	struct rpmsg_msg *msg;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_START];
+		msg->s_msg.header.cmd = TX_START;
+	} else {
+		msg = &info->msg[RX_START];
+		msg->s_msg.header.cmd = RX_START;
+	}
+
+	return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_restart(struct snd_soc_component *component,
+			     struct snd_pcm_substream *substream)
+{
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	struct rpmsg_msg *msg;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_RESTART];
+		msg->s_msg.header.cmd = TX_RESTART;
+	} else {
+		msg = &info->msg[RX_RESTART];
+		msg->s_msg.header.cmd = RX_RESTART;
+	}
+
+	return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_pause(struct snd_soc_component *component,
+			   struct snd_pcm_substream *substream)
+{
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	struct rpmsg_msg *msg;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_PAUSE];
+		msg->s_msg.header.cmd = TX_PAUSE;
+	} else {
+		msg = &info->msg[RX_PAUSE];
+		msg->s_msg.header.cmd = RX_PAUSE;
+	}
+
+	return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_terminate_all(struct snd_soc_component *component,
+				   struct snd_pcm_substream *substream)
+{
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	struct rpmsg_msg *msg;
+	int cmd;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_TERMINATE];
+		msg->s_msg.header.cmd = TX_TERMINATE;
+		/* Clear buffer count*/
+		cmd = TX_PERIOD_DONE + MSG_TYPE_A_NUM;
+		info->msg[cmd].s_msg.param.buffer_tail = 0;
+		info->msg[cmd].r_msg.param.buffer_tail = 0;
+		info->msg[TX_POINTER].r_msg.param.buffer_offset = 0;
+	} else {
+		msg = &info->msg[RX_TERMINATE];
+		msg->s_msg.header.cmd = RX_TERMINATE;
+		/* Clear buffer count*/
+		cmd = RX_PERIOD_DONE + MSG_TYPE_A_NUM;
+		info->msg[cmd].s_msg.param.buffer_tail = 0;
+		info->msg[cmd].r_msg.param.buffer_tail = 0;
+		info->msg[RX_POINTER].r_msg.param.buffer_offset = 0;
+	}
+
+	del_timer(&info->stream_timer[substream->stream].timer);
+
+	return imx_rpmsg_insert_workqueue(substream, msg, info);
+}
+
+static int imx_rpmsg_pcm_trigger(struct snd_soc_component *component,
+				 struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct fsl_rpmsg *rpmsg = dev_get_drvdata(cpu_dai->dev);
+	int ret = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		ret = imx_rpmsg_prepare_and_submit(component, substream);
+		if (ret)
+			return ret;
+		ret = imx_rpmsg_async_issue_pending(component, substream);
+		break;
+	case SNDRV_PCM_TRIGGER_RESUME:
+		if (rpmsg->force_lpa)
+			break;
+		fallthrough;
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		ret = imx_rpmsg_restart(component, substream);
+		break;
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+		if (!rpmsg->force_lpa) {
+			if (runtime->info & SNDRV_PCM_INFO_PAUSE)
+				ret = imx_rpmsg_pause(component, substream);
+			else
+				ret = imx_rpmsg_terminate_all(component, substream);
+		}
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		ret = imx_rpmsg_pause(component, substream);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		ret = imx_rpmsg_terminate_all(component, substream);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+/*
+ * imx_rpmsg_pcm_ack
+ *
+ * Send the period index to M core through rpmsg, but not send
+ * all the period index to M core, reduce some unnessesary msg
+ * to reduce the pressure of rpmsg bandwidth.
+ */
+static int imx_rpmsg_pcm_ack(struct snd_soc_component *component,
+			     struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct fsl_rpmsg *rpmsg = dev_get_drvdata(cpu_dai->dev);
+	struct rpmsg_info *info = dev_get_drvdata(component->dev);
+	snd_pcm_uframes_t period_size = runtime->period_size;
+	snd_pcm_sframes_t avail;
+	struct timer_list *timer;
+	struct rpmsg_msg *msg;
+	unsigned long flags;
+	int buffer_tail = 0;
+	int written_num;
+
+	if (!rpmsg->force_lpa)
+		return 0;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		msg = &info->msg[TX_PERIOD_DONE + MSG_TYPE_A_NUM];
+		msg->s_msg.header.cmd = TX_PERIOD_DONE;
+	} else {
+		msg = &info->msg[RX_PERIOD_DONE + MSG_TYPE_A_NUM];
+		msg->s_msg.header.cmd = RX_PERIOD_DONE;
+	}
+
+	msg->s_msg.header.type = MSG_TYPE_C;
+
+	buffer_tail = (frames_to_bytes(runtime, runtime->control->appl_ptr) %
+		       snd_pcm_lib_buffer_bytes(substream));
+	buffer_tail = buffer_tail / snd_pcm_lib_period_bytes(substream);
+
+	/* There is update for period index */
+	if (buffer_tail != msg->s_msg.param.buffer_tail) {
+		written_num = buffer_tail - msg->s_msg.param.buffer_tail;
+		if (written_num < 0)
+			written_num += runtime->periods;
+
+		msg->s_msg.param.buffer_tail = buffer_tail;
+
+		/* The notification message is updated to latest */
+		spin_lock_irqsave(&info->lock[substream->stream], flags);
+		memcpy(&info->notify[substream->stream], msg,
+		       sizeof(struct rpmsg_s_msg));
+		info->notify_updated[substream->stream] = true;
+		spin_unlock_irqrestore(&info->lock[substream->stream], flags);
+
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			avail = snd_pcm_playback_hw_avail(runtime);
+		else
+			avail = snd_pcm_capture_hw_avail(runtime);
+
+		timer = &info->stream_timer[substream->stream].timer;
+		/*
+		 * If the data in the buffer is less than one period before
+		 * this fill, which means the data may not enough on M
+		 * core side, we need to send message immediately to let
+		 * M core know the pointer is updated.
+		 * if there is more than one period data in the buffer before
+		 * this fill, which means the data is enough on M core side,
+		 * we can delay one period (using timer) to send the message
+		 * for reduce the message number in workqueue, because the
+		 * pointer may be updated by ack function later, we can
+		 * send latest pointer to M core side.
+		 */
+		if ((avail - written_num * period_size) <= period_size) {
+			imx_rpmsg_insert_workqueue(substream, msg, info);
+		} else if (rpmsg->force_lpa && !timer_pending(timer)) {
+			int time_msec;
+
+			time_msec = (int)(runtime->period_size * 1000 / runtime->rate);
+			mod_timer(timer, jiffies + msecs_to_jiffies(time_msec));
+		}
+	}
+
+	return 0;
+}
+
+static int imx_rpmsg_pcm_new(struct snd_soc_component *component,
+			     struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_card *card = rtd->card->snd_card;
+	struct snd_pcm *pcm = rtd->pcm;
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct fsl_rpmsg *rpmsg = dev_get_drvdata(cpu_dai->dev);
+	int ret;
+
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	imx_rpmsg_pcm_hardware.buffer_bytes_max = rpmsg->buffer_size;
+	return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV_WC,
+					    pcm->card->dev, rpmsg->buffer_size);
+}
+
+static const struct snd_soc_component_driver imx_rpmsg_soc_component = {
+	.name		= IMX_PCM_DRV_NAME,
+	.pcm_construct	= imx_rpmsg_pcm_new,
+	.open		= imx_rpmsg_pcm_open,
+	.close		= imx_rpmsg_pcm_close,
+	.hw_params	= imx_rpmsg_pcm_hw_params,
+	.trigger	= imx_rpmsg_pcm_trigger,
+	.pointer	= imx_rpmsg_pcm_pointer,
+	.ack		= imx_rpmsg_pcm_ack,
+	.prepare	= imx_rpmsg_pcm_prepare,
+};
+
+static void imx_rpmsg_pcm_work(struct work_struct *work)
+{
+	struct work_of_rpmsg *work_of_rpmsg;
+	bool is_notification = false;
+	struct rpmsg_info *info;
+	struct rpmsg_msg msg;
+	unsigned long flags;
+
+	work_of_rpmsg = container_of(work, struct work_of_rpmsg, work);
+	info = work_of_rpmsg->info;
+
+	/*
+	 * Every work in the work queue, first we check if there
+	 * is update for period is filled, because there may be not
+	 * enough data in M core side, need to let M core know
+	 * data is updated immediately.
+	 */
+	spin_lock_irqsave(&info->lock[TX], flags);
+	if (info->notify_updated[TX]) {
+		memcpy(&msg, &info->notify[TX], sizeof(struct rpmsg_s_msg));
+		info->notify_updated[TX] = false;
+		spin_unlock_irqrestore(&info->lock[TX], flags);
+		info->send_message(&msg, info);
+	} else {
+		spin_unlock_irqrestore(&info->lock[TX], flags);
+	}
+
+	spin_lock_irqsave(&info->lock[RX], flags);
+	if (info->notify_updated[RX]) {
+		memcpy(&msg, &info->notify[RX], sizeof(struct rpmsg_s_msg));
+		info->notify_updated[RX] = false;
+		spin_unlock_irqrestore(&info->lock[RX], flags);
+		info->send_message(&msg, info);
+	} else {
+		spin_unlock_irqrestore(&info->lock[RX], flags);
+	}
+
+	/* Skip the notification message for it has been processed above */
+	if (work_of_rpmsg->msg.s_msg.header.type == MSG_TYPE_C &&
+	    (work_of_rpmsg->msg.s_msg.header.cmd == TX_PERIOD_DONE ||
+	     work_of_rpmsg->msg.s_msg.header.cmd == RX_PERIOD_DONE))
+		is_notification = true;
+
+	if (!is_notification)
+		info->send_message(&work_of_rpmsg->msg, info);
+
+	/* update read index */
+	spin_lock_irqsave(&info->wq_lock, flags);
+	info->work_read_index++;
+	info->work_read_index %= WORK_MAX_NUM;
+	spin_unlock_irqrestore(&info->wq_lock, flags);
+}
+
+static int imx_rpmsg_pcm_probe(struct platform_device *pdev)
+{
+	struct snd_soc_component *component;
+	struct rpmsg_info *info;
+	int ret, i;
+
+	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, info);
+
+	info->rpdev = container_of(pdev->dev.parent, struct rpmsg_device, dev);
+	info->dev = &pdev->dev;
+	/* Setup work queue */
+	info->rpmsg_wq = alloc_ordered_workqueue("rpmsg_audio",
+						 WQ_HIGHPRI |
+						 WQ_UNBOUND |
+						 WQ_FREEZABLE);
+	if (!info->rpmsg_wq) {
+		dev_err(&pdev->dev, "workqueue create failed\n");
+		return -ENOMEM;
+	}
+
+	/* Write index initialize 1, make it differ with the read index */
+	info->work_write_index = 1;
+	info->send_message = imx_rpmsg_pcm_send_message;
+
+	for (i = 0; i < WORK_MAX_NUM; i++) {
+		INIT_WORK(&info->work_list[i].work, imx_rpmsg_pcm_work);
+		info->work_list[i].info = info;
+	}
+
+	/* Initialize msg */
+	for (i = 0; i < MSG_MAX_NUM; i++) {
+		info->msg[i].s_msg.header.cate  = IMX_RPMSG_AUDIO;
+		info->msg[i].s_msg.header.major = IMX_RMPSG_MAJOR;
+		info->msg[i].s_msg.header.minor = IMX_RMPSG_MINOR;
+		info->msg[i].s_msg.header.type  = MSG_TYPE_A;
+		info->msg[i].s_msg.param.audioindex = 0;
+	}
+
+	init_completion(&info->cmd_complete);
+	mutex_init(&info->msg_lock);
+	spin_lock_init(&info->lock[TX]);
+	spin_lock_init(&info->lock[RX]);
+	spin_lock_init(&info->wq_lock);
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+					      &imx_rpmsg_soc_component,
+					      NULL, 0);
+	if (ret)
+		goto fail;
+
+	component = snd_soc_lookup_component(&pdev->dev, IMX_PCM_DRV_NAME);
+	if (!component) {
+		ret = -EINVAL;
+		goto fail;
+	}
+#ifdef CONFIG_DEBUG_FS
+	component->debugfs_prefix = "rpmsg";
+#endif
+
+	return 0;
+
+fail:
+	if (info->rpmsg_wq)
+		destroy_workqueue(info->rpmsg_wq);
+
+	return ret;
+}
+
+static int imx_rpmsg_pcm_remove(struct platform_device *pdev)
+{
+	struct rpmsg_info *info = platform_get_drvdata(pdev);
+
+	if (info->rpmsg_wq)
+		destroy_workqueue(info->rpmsg_wq);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int imx_rpmsg_pcm_runtime_resume(struct device *dev)
+{
+	struct rpmsg_info *info = dev_get_drvdata(dev);
+
+	cpu_latency_qos_add_request(&info->pm_qos_req, 0);
+
+	return 0;
+}
+
+static int imx_rpmsg_pcm_runtime_suspend(struct device *dev)
+{
+	struct rpmsg_info *info = dev_get_drvdata(dev);
+
+	cpu_latency_qos_remove_request(&info->pm_qos_req);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PM_SLEEP
+static int imx_rpmsg_pcm_suspend(struct device *dev)
+{
+	struct rpmsg_info *info = dev_get_drvdata(dev);
+	struct rpmsg_msg *rpmsg_tx;
+	struct rpmsg_msg *rpmsg_rx;
+
+	rpmsg_tx = &info->msg[TX_SUSPEND];
+	rpmsg_rx = &info->msg[RX_SUSPEND];
+
+	rpmsg_tx->s_msg.header.cmd = TX_SUSPEND;
+	info->send_message(rpmsg_tx, info);
+
+	rpmsg_rx->s_msg.header.cmd = RX_SUSPEND;
+	info->send_message(rpmsg_rx, info);
+
+	return 0;
+}
+
+static int imx_rpmsg_pcm_resume(struct device *dev)
+{
+	struct rpmsg_info *info = dev_get_drvdata(dev);
+	struct rpmsg_msg *rpmsg_tx;
+	struct rpmsg_msg *rpmsg_rx;
+
+	rpmsg_tx = &info->msg[TX_RESUME];
+	rpmsg_rx = &info->msg[RX_RESUME];
+
+	rpmsg_tx->s_msg.header.cmd = TX_RESUME;
+	info->send_message(rpmsg_tx, info);
+
+	rpmsg_rx->s_msg.header.cmd = RX_RESUME;
+	info->send_message(rpmsg_rx, info);
+
+	return 0;
+}
+#endif /* CONFIG_PM_SLEEP */
+
+static const struct dev_pm_ops imx_rpmsg_pcm_pm_ops = {
+	SET_RUNTIME_PM_OPS(imx_rpmsg_pcm_runtime_suspend,
+			   imx_rpmsg_pcm_runtime_resume,
+			   NULL)
+	SET_SYSTEM_SLEEP_PM_OPS(imx_rpmsg_pcm_suspend,
+				imx_rpmsg_pcm_resume)
+};
+
+static struct platform_driver imx_pcm_rpmsg_driver = {
+	.probe  = imx_rpmsg_pcm_probe,
+	.remove	= imx_rpmsg_pcm_remove,
+	.driver = {
+		.name = IMX_PCM_DRV_NAME,
+		.pm = &imx_rpmsg_pcm_pm_ops,
+	},
+};
+module_platform_driver(imx_pcm_rpmsg_driver);
+
+MODULE_DESCRIPTION("Freescale SoC Audio RPMSG PCM interface");
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_ALIAS("platform:" IMX_PCM_DRV_NAME);
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/imx-pcm-rpmsg.h b/sound/soc/fsl/imx-pcm-rpmsg.h
new file mode 100644
index 000000000..8286b55f0
--- /dev/null
+++ b/sound/soc/fsl/imx-pcm-rpmsg.h
@@ -0,0 +1,512 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2017-2021  NXP
+ *
+ ******************************************************************************
+ * Communication stack of audio with rpmsg
+ ******************************************************************************
+ * Packet structure:
+ *   A SRTM message consists of a 10 bytes header followed by 0~N bytes of data
+ *
+ *   +---------------+-------------------------------+
+ *   |               |            Content            |
+ *   +---------------+-------------------------------+
+ *   |  Byte Offset  | 7   6   5   4   3   2   1   0 |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |       0       |           Category            |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |     1 ~ 2     |           Version             |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |       3       |             Type              |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |       4       |           Command             |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |       5       |           Reserved0           |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |       6       |           Reserved1           |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |       7       |           Reserved2           |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |       8       |           Reserved3           |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |       9       |           Reserved4           |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |       10      |            DATA 0             |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   :   :   :   :   :   :   :   :   :   :   :   :   :
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *   |   N + 10 - 1  |            DATA N-1           |
+ *   +---------------+---+---+---+---+---+---+---+---+
+ *
+ *   +----------+------------+------------------------------------------------+
+ *   |  Field   |    Byte    |                                                |
+ *   +----------+------------+------------------------------------------------+
+ *   | Category |     0      | The destination category.                      |
+ *   +----------+------------+------------------------------------------------+
+ *   | Version  |   1 ~ 2    | The category version of the sender of the      |
+ *   |          |            | packet.                                        |
+ *   |          |            | The first byte represent the major version of  |
+ *   |          |            | the packet.The second byte represent the minor |
+ *   |          |            | version of the packet.                         |
+ *   +----------+------------+------------------------------------------------+
+ *   |  Type    |     3      | The message type of current message packet.    |
+ *   +----------+------------+------------------------------------------------+
+ *   | Command  |     4      | The command byte sent to remote processor/SoC. |
+ *   +----------+------------+------------------------------------------------+
+ *   | Reserved |   5 ~ 9    | Reserved field for future extension.           |
+ *   +----------+------------+------------------------------------------------+
+ *   | Data     |     N      | The data payload of the message packet.        |
+ *   +----------+------------+------------------------------------------------+
+ *
+ * Audio control:
+ *   SRTM Audio Control Category Request Command Table:
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   | Category | Version | Type | Command | Data                          | Function              |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x00   | Data[0]: Audio Device Index   | Open a TX Instance.   |
+ *   |          |         |      |         | Data[1]:     format           |                       |
+ *   |          |         |      |         | Data[2]:     channels         |                       |
+ *   |          |         |      |         | Data[3-6]:   samplerate       |                       |
+ *   |          |         |      |         | Data[7-10]:  buffer_addr      |                       |
+ *   |          |         |      |         | Data[11-14]: buffer_size      |                       |
+ *   |          |         |      |         | Data[15-18]: period_size      |                       |
+ *   |          |         |      |         | Data[19-22]: buffer_tail      |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x01   | Data[0]: Audio Device Index   | Start a TX Instance.  |
+ *   |          |         |      |         | Same as above command         |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x02   | Data[0]: Audio Device Index   | Pause a TX Instance.  |
+ *   |          |         |      |         | Same as above command         |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x03   | Data[0]: Audio Device Index   | Resume a TX Instance. |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x04   | Data[0]: Audio Device Index   | Stop a TX Instance.   |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x05   | Data[0]: Audio Device Index   | Close a TX Instance.  |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x06   | Data[0]: Audio Device Index   | Set Parameters for    |
+ *   |          |         |      |         | Data[1]:     format           | a TX Instance.        |
+ *   |          |         |      |         | Data[2]:     channels         |                       |
+ *   |          |         |      |         | Data[3-6]:   samplerate       |                       |
+ *   |          |         |      |         | Data[7-22]:  reserved         |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x07   | Data[0]: Audio Device Index   | Set TX Buffer.        |
+ *   |          |         |      |         | Data[1-6]:   reserved         |                       |
+ *   |          |         |      |         | Data[7-10]:  buffer_addr      |                       |
+ *   |          |         |      |         | Data[11-14]: buffer_size      |                       |
+ *   |          |         |      |         | Data[15-18]: period_size      |                       |
+ *   |          |         |      |         | Data[19-22]: buffer_tail      |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x08   | Data[0]: Audio Device Index   | Suspend a TX Instance |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x09   | Data[0]: Audio Device Index   | Resume a TX Instance. |
+ *   |          |         |      |         | Data[1]:     format           |                       |
+ *   |          |         |      |         | Data[2]:     channels         |                       |
+ *   |          |         |      |         | Data[3-6]:   samplerate       |                       |
+ *   |          |         |      |         | Data[7-10]:  buffer_addr      |                       |
+ *   |          |         |      |         | Data[11-14]: buffer_size      |                       |
+ *   |          |         |      |         | Data[15-18]: period_size      |                       |
+ *   |          |         |      |         | Data[19-22]: buffer_tail      |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x0A   | Data[0]: Audio Device Index   | Open a RX Instance.   |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x0B   | Data[0]: Audio Device Index   | Start a RX Instance.  |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x0C   | Data[0]: Audio Device Index   | Pause a RX Instance.  |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x0D   | Data[0]: Audio Device Index   | Resume a RX Instance. |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x0E   | Data[0]: Audio Device Index   | Stop a RX Instance.   |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x0F   | Data[0]: Audio Device Index   | Close a RX Instance.  |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x10   | Data[0]: Audio Device Index   | Set Parameters for    |
+ *   |          |         |      |         | Data[1]:     format           | a RX Instance.        |
+ *   |          |         |      |         | Data[2]:     channels         |                       |
+ *   |          |         |      |         | Data[3-6]:   samplerate       |                       |
+ *   |          |         |      |         | Data[7-22]:  reserved         |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x11   | Data[0]: Audio Device Index   | Set RX Buffer.        |
+ *   |          |         |      |         | Data[1-6]:   reserved         |                       |
+ *   |          |         |      |         | Data[7-10]:  buffer_addr      |                       |
+ *   |          |         |      |         | Data[11-14]: buffer_size      |                       |
+ *   |          |         |      |         | Data[15-18]: period_size      |                       |
+ *   |          |         |      |         | Data[19-22]: buffer_tail      |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x12   | Data[0]: Audio Device Index   | Suspend a RX Instance.|
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x13   | Data[0]: Audio Device Index   | Resume a RX Instance. |
+ *   |          |         |      |         | Data[1]:     format           |                       |
+ *   |          |         |      |         | Data[2]:     channels         |                       |
+ *   |          |         |      |         | Data[3-6]:   samplerate       |                       |
+ *   |          |         |      |         | Data[7-10]:  buffer_addr      |                       |
+ *   |          |         |      |         | Data[11-14]: buffer_size      |                       |
+ *   |          |         |      |         | Data[15-18]: period_size      |                       |
+ *   |          |         |      |         | Data[19-22]: buffer_tail      |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x14   | Data[0]: Audio Device Index   | Set register value    |
+ *   |          |         |      |         | Data[1-6]:   reserved         | to codec              |
+ *   |          |         |      |         | Data[7-10]:  register         |                       |
+ *   |          |         |      |         | Data[11-14]: value            |                       |
+ *   |          |         |      |         | Data[15-22]: reserved         |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x00 |  0x15   | Data[0]: Audio Device Index   | Get register value    |
+ *   |          |         |      |         | Data[1-6]:   reserved         | from codec            |
+ *   |          |         |      |         | Data[7-10]:  register         |                       |
+ *   |          |         |      |         | Data[11-22]: reserved         |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   Note 1: See <List of Sample Format> for available value of
+ *           Sample Format;
+ *   Note 2: See <List of Audio Channels> for available value of Channels;
+ *   Note 3: Sample Rate of Set Parameters for an Audio TX Instance
+ *           Command and Set Parameters for an Audio RX Instance Command is
+ *           in little-endian format.
+ *
+ *   SRTM Audio Control Category Response Command Table:
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   | Category | Version | Type | Command | Data                          | Function              |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x00   | Data[0]: Audio Device Index   | Reply for Open        |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x01   | Data[0]: Audio Device Index   | Reply for Start       |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x02   | Data[0]: Audio Device Index   | Reply for Pause       |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x03   | Data[0]: Audio Device Index   | Reply for Resume      |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x04   | Data[0]: Audio Device Index   | Reply for Stop        |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x05   | Data[0]: Audio Device Index   | Reply for Close       |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x06   | Data[0]: Audio Device Index   | Reply for Set Param   |
+ *   |          |         |      |         | Data[1]: Return code          | for a TX Instance.    |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x07   | Data[0]: Audio Device Index   | Reply for Set         |
+ *   |          |         |      |         | Data[1]: Return code          | TX Buffer             |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x08   | Data[0]: Audio Device Index   | Reply for Suspend     |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x09   | Data[0]: Audio Device Index   | Reply for Resume      |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x0A   | Data[0]: Audio Device Index   | Reply for Open        |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x0B   | Data[0]: Audio Device Index   | Reply for Start       |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x0C   | Data[0]: Audio Device Index   | Reply for Pause       |
+ *   |          |         |      |         | Data[1]: Return code          | a TX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x0D   | Data[0]: Audio Device Index   | Reply for Resume      |
+ *   |          |         |      |         | Data[1]: Return code          | a RX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x0E   | Data[0]: Audio Device Index   | Reply for Stop        |
+ *   |          |         |      |         | Data[1]: Return code          | a RX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x0F   | Data[0]: Audio Device Index   | Reply for Close       |
+ *   |          |         |      |         | Data[1]: Return code          | a RX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x10   | Data[0]: Audio Device Index   | Reply for Set Param   |
+ *   |          |         |      |         | Data[1]: Return code          | for a RX Instance.    |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x11   | Data[0]: Audio Device Index   | Reply for Set         |
+ *   |          |         |      |         | Data[1]: Return code          | RX Buffer             |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x12   | Data[0]: Audio Device Index   | Reply for Suspend     |
+ *   |          |         |      |         | Data[1]: Return code          | a RX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x13   | Data[0]: Audio Device Index   | Reply for Resume      |
+ *   |          |         |      |         | Data[1]: Return code          | a RX Instance         |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x14   | Data[0]: Audio Device Index   | Reply for Set codec   |
+ *   |          |         |      |         | Data[1]: Return code          | register value        |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x01 |  0x15   | Data[0]: Audio Device Index   | Reply for Get codec   |
+ *   |          |         |      |         | Data[1]: Return code          | register value        |
+ *   |          |         |      |         | Data[2-6]:   reserved         |                       |
+ *   |          |         |      |         | Data[7-10]:  register         |                       |
+ *   |          |         |      |         | Data[11-14]: value            |                       |
+ *   |          |         |      |         | Data[15-22]: reserved         |                       |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *
+ *   SRTM Audio Control Category Notification Command Table:
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   | Category | Version | Type | Command | Data                          | Function              |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x02 |  0x00   | Data[0]: Audio Device Index   | Notify one TX period  |
+ *   |          |         |      |         |                               | is finished           |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *   |  0x03    | 0x0100  | 0x02 |  0x01   | Data[0]: Audio Device Index   | Notify one RX period  |
+ *   |          |         |      |         |                               | is finished           |
+ *   +----------+---------+------+---------+-------------------------------+-----------------------+
+ *
+ *   List of Sample Format:
+ *   +------------------+-----------------------+
+ *   | Sample Format    |   Description         |
+ *   +------------------+-----------------------+
+ *   |       0x0        | S16_LE                |
+ *   +------------------+-----------------------+
+ *   |       0x1        | S24_LE                |
+ *   +------------------+-----------------------+
+ *
+ *   List of Audio Channels
+ *   +------------------+-----------------------+
+ *   |  Audio Channel   |   Description         |
+ *   +------------------+-----------------------+
+ *   |       0x0        | Left Channel          |
+ *   +------------------+-----------------------+
+ *   |       0x1        | Right Channel         |
+ *   +------------------+---------------- ------+
+ *   |       0x2        | Left & Right Channel  |
+ *   +------------------+-----------------------+
+ *
+ */
+
+#ifndef _IMX_PCM_RPMSG_H
+#define _IMX_PCM_RPMSG_H
+
+#include <linux/pm_qos.h>
+#include <linux/interrupt.h>
+#include <sound/dmaengine_pcm.h>
+
+#define RPMSG_TIMEOUT 1000
+
+/* RPMSG Command (TYPE A)*/
+#define TX_OPEN		0x0
+#define	TX_START	0x1
+#define	TX_PAUSE	0x2
+#define	TX_RESTART	0x3
+#define	TX_TERMINATE	0x4
+#define	TX_CLOSE	0x5
+#define TX_HW_PARAM	0x6
+#define	TX_BUFFER	0x7
+#define	TX_SUSPEND	0x8
+#define	TX_RESUME	0x9
+
+#define	RX_OPEN		0xA
+#define	RX_START	0xB
+#define	RX_PAUSE	0xC
+#define	RX_RESTART	0xD
+#define	RX_TERMINATE	0xE
+#define	RX_CLOSE	0xF
+#define	RX_HW_PARAM	0x10
+#define	RX_BUFFER	0x11
+#define	RX_SUSPEND	0x12
+#define	RX_RESUME	0x13
+#define SET_CODEC_VALUE 0x14
+#define GET_CODEC_VALUE 0x15
+#define	TX_POINTER	0x16
+#define	RX_POINTER	0x17
+/* Total msg numver for type A */
+#define MSG_TYPE_A_NUM  0x18
+
+/* RPMSG Command (TYPE C)*/
+#define	TX_PERIOD_DONE	0x0
+#define	RX_PERIOD_DONE	0x1
+/* Total msg numver for type C */
+#define MSG_TYPE_C_NUM  0x2
+
+#define MSG_MAX_NUM     (MSG_TYPE_A_NUM + MSG_TYPE_C_NUM)
+
+#define MSG_TYPE_A	0x0
+#define MSG_TYPE_B	0x1
+#define MSG_TYPE_C	0x2
+
+#define RESP_NONE		0x0
+#define RESP_NOT_ALLOWED	0x1
+#define	RESP_SUCCESS		0x2
+#define	RESP_FAILED		0x3
+
+#define	RPMSG_S16_LE		0x0
+#define	RPMSG_S24_LE		0x1
+#define	RPMSG_S32_LE		0x2
+#define	RPMSG_DSD_U16_LE	49  /* SNDRV_PCM_FORMAT_DSD_U16_LE */
+#define	RPMSG_DSD_U24_LE	0x4
+#define	RPMSG_DSD_U32_LE	50  /* SNDRV_PCM_FORMAT_DSD_U32_LE */
+
+#define	RPMSG_CH_LEFT		0x0
+#define	RPMSG_CH_RIGHT		0x1
+#define	RPMSG_CH_STEREO		0x2
+
+#define WORK_MAX_NUM    0x30
+
+/* Category define */
+#define IMX_RMPSG_LIFECYCLE     1
+#define IMX_RPMSG_PMIC          2
+#define IMX_RPMSG_AUDIO         3
+#define IMX_RPMSG_KEY           4
+#define IMX_RPMSG_GPIO          5
+#define IMX_RPMSG_RTC           6
+#define IMX_RPMSG_SENSOR        7
+
+/* rpmsg version */
+#define IMX_RMPSG_MAJOR         1
+#define IMX_RMPSG_MINOR         0
+
+#define TX SNDRV_PCM_STREAM_PLAYBACK
+#define RX SNDRV_PCM_STREAM_CAPTURE
+
+/**
+ * struct rpmsg_head: rpmsg header structure
+ *
+ * @cate: category
+ * @major: major version
+ * @minor: minor version
+ * @type: message type (A/B/C)
+ * @cmd: message command
+ * @reserved: reserved space
+ */
+struct rpmsg_head {
+	u8 cate;
+	u8 major;
+	u8 minor;
+	u8 type;
+	u8 cmd;
+	u8 reserved[5];
+} __packed;
+
+/**
+ * struct param_s: sent rpmsg parameter
+ *
+ * @audioindex: audio instance index
+ * @format: audio format
+ * @channels: audio channel number
+ * @rate: sample rate
+ * @buffer_addr: dma buffer physical address or register for SET_CODEC_VALUE
+ * @buffer_size: dma buffer size or register value for SET_CODEC_VALUE
+ * @period_size: period size
+ * @buffer_tail: current period index
+ */
+struct param_s {
+	unsigned char audioindex;
+	unsigned char format;
+	unsigned char channels;
+	unsigned int  rate;
+	unsigned int  buffer_addr;
+	unsigned int  buffer_size;
+	unsigned int  period_size;
+	unsigned int  buffer_tail;
+} __packed;
+
+/**
+ * struct param_s: send rpmsg parameter
+ *
+ * @audioindex: audio instance index
+ * @resp: response value
+ * @reserved1: reserved space
+ * @buffer_offset: the consumed offset of buffer
+ * @reg_addr: register addr of codec
+ * @reg_data: register value of codec
+ * @reserved2: reserved space
+ * @buffer_tail: current period index
+ */
+struct param_r {
+	unsigned char audioindex;
+	unsigned char resp;
+	unsigned char reserved1[1];
+	unsigned int  buffer_offset;
+	unsigned int  reg_addr;
+	unsigned int  reg_data;
+	unsigned char reserved2[4];
+	unsigned int  buffer_tail;
+} __packed;
+
+/* Struct of sent message */
+struct rpmsg_s_msg {
+	struct rpmsg_head header;
+	struct param_s    param;
+};
+
+/* Struct of received message */
+struct rpmsg_r_msg {
+	struct rpmsg_head header;
+	struct param_r    param;
+};
+
+/* Struct of rpmsg */
+struct rpmsg_msg {
+	struct rpmsg_s_msg  s_msg;
+	struct rpmsg_r_msg  r_msg;
+};
+
+/* Struct of rpmsg for workqueue */
+struct work_of_rpmsg {
+	struct rpmsg_info   *info;
+	/* Sent msg for each work */
+	struct rpmsg_msg    msg;
+	struct work_struct  work;
+};
+
+/* Struct of timer */
+struct stream_timer {
+	struct timer_list   timer;
+	struct rpmsg_info   *info;
+	struct snd_pcm_substream *substream;
+};
+
+typedef void (*dma_callback)(void *arg);
+
+/**
+ * struct rpmsg_info: rpmsg audio information
+ *
+ * @rpdev: pointer of rpmsg_device
+ * @dev: pointer for imx_pcm_rpmsg device
+ * @cmd_complete: command is finished
+ * @pm_qos_req: request of pm qos
+ * @r_msg: received rpmsg
+ * @msg: array of rpmsg
+ * @notify: notification msg (type C) for TX & RX
+ * @notify_updated: notification flag for TX & RX
+ * @rpmsg_wq: rpmsg workqueue
+ * @work_list: array of work list for workqueue
+ * @work_write_index: write index of work list
+ * @work_read_index: read index of work list
+ * @msg_drop_count: counter of dropped msg for TX & RX
+ * @num_period: period number for TX & RX
+ * @callback_param: parameter for period elapse callback for TX & RX
+ * @callback: period elapse callback for TX & RX
+ * @send_message: function pointer for send message
+ * @lock: spin lock for TX & RX
+ * @wq_lock: lock for work queue
+ * @msg_lock: lock for send message
+ * @stream_timer: timer for tigger workqueue
+ */
+struct rpmsg_info {
+	struct rpmsg_device      *rpdev;
+	struct device            *dev;
+	struct completion        cmd_complete;
+	struct pm_qos_request    pm_qos_req;
+
+	/* Received msg (global) */
+	struct rpmsg_r_msg       r_msg;
+	struct rpmsg_msg         msg[MSG_MAX_NUM];
+	/* period done */
+	struct rpmsg_msg         notify[2];
+	bool                     notify_updated[2];
+
+	struct workqueue_struct  *rpmsg_wq;
+	struct work_of_rpmsg	 work_list[WORK_MAX_NUM];
+	int                      work_write_index;
+	int                      work_read_index;
+	int                      msg_drop_count[2];
+	int                      num_period[2];
+	void                     *callback_param[2];
+	dma_callback             callback[2];
+	int (*send_message)(struct rpmsg_msg *msg, struct rpmsg_info *info);
+	spinlock_t               lock[2]; /* spin lock for resource protection */
+	spinlock_t               wq_lock; /* spin lock for resource protection */
+	struct mutex             msg_lock; /* mutex for resource protection */
+	struct stream_timer      stream_timer[2];
+};
+
+#define IMX_PCM_DRV_NAME "imx_pcm_rpmsg"
+
+#endif /* IMX_PCM_RPMSG_H */
diff --git a/sound/soc/fsl/imx-pcm.h b/sound/soc/fsl/imx-pcm.h
new file mode 100644
index 000000000..ac5f57c3c
--- /dev/null
+++ b/sound/soc/fsl/imx-pcm.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2009 Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * This code is based on code copyrighted by Freescale,
+ * Liam Girdwood, Javier Martin and probably others.
+ */
+
+#ifndef _IMX_PCM_H
+#define _IMX_PCM_H
+
+#include <linux/dma/imx-dma.h>
+
+/*
+ * Do not change this as the FIQ handler depends on this size
+ */
+#define IMX_SSI_DMABUF_SIZE	(64 * 1024)
+
+#define IMX_DEFAULT_DMABUF_SIZE	(64 * 1024)
+
+struct imx_pcm_fiq_params {
+	int irq;
+	void __iomem *base;
+
+	/* Pointer to original ssi driver to setup tx rx sizes */
+	struct snd_dmaengine_dai_dma_data *dma_params_rx;
+	struct snd_dmaengine_dai_dma_data *dma_params_tx;
+};
+
+#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_DMA)
+int imx_pcm_dma_init(struct platform_device *pdev);
+#else
+static inline int imx_pcm_dma_init(struct platform_device *pdev)
+{
+	return -ENODEV;
+}
+#endif
+
+#if IS_ENABLED(CONFIG_SND_SOC_IMX_PCM_FIQ)
+int imx_pcm_fiq_init(struct platform_device *pdev,
+		struct imx_pcm_fiq_params *params);
+void imx_pcm_fiq_exit(struct platform_device *pdev);
+#else
+static inline int imx_pcm_fiq_init(struct platform_device *pdev,
+		struct imx_pcm_fiq_params *params)
+{
+	return -ENODEV;
+}
+
+static inline void imx_pcm_fiq_exit(struct platform_device *pdev)
+{
+}
+#endif
+
+#endif /* _IMX_PCM_H */
diff --git a/sound/soc/fsl/imx-rpmsg.c b/sound/soc/fsl/imx-rpmsg.c
new file mode 100644
index 000000000..76c6febf2
--- /dev/null
+++ b/sound/soc/fsl/imx-rpmsg.c
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0+
+// Copyright 2017-2020 NXP
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/of_reserved_mem.h>
+#include <linux/i2c.h>
+#include <linux/of_gpio.h>
+#include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/control.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include "imx-pcm-rpmsg.h"
+
+struct imx_rpmsg {
+	struct snd_soc_dai_link dai;
+	struct snd_soc_card card;
+	unsigned long sysclk;
+};
+
+static const struct snd_soc_dapm_widget imx_rpmsg_dapm_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_SPK("Ext Spk", NULL),
+	SND_SOC_DAPM_MIC("Mic Jack", NULL),
+	SND_SOC_DAPM_MIC("Main MIC", NULL),
+};
+
+static int imx_rpmsg_late_probe(struct snd_soc_card *card)
+{
+	struct imx_rpmsg *data = snd_soc_card_get_drvdata(card);
+	struct snd_soc_pcm_runtime *rtd = list_first_entry(&card->rtd_list,
+							   struct snd_soc_pcm_runtime, list);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct device *dev = card->dev;
+	int ret;
+
+	if (!data->sysclk)
+		return 0;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, 0, data->sysclk, SND_SOC_CLOCK_IN);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dev, "failed to set sysclk in %s\n", __func__);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int imx_rpmsg_probe(struct platform_device *pdev)
+{
+	struct snd_soc_dai_link_component *dlc;
+	struct device *dev = pdev->dev.parent;
+	/* rpmsg_pdev is the platform device for the rpmsg node that probed us */
+	struct platform_device *rpmsg_pdev = to_platform_device(dev);
+	struct device_node *np = rpmsg_pdev->dev.of_node;
+	struct of_phandle_args args;
+	struct imx_rpmsg *data;
+	int ret = 0;
+
+	dlc = devm_kzalloc(&pdev->dev, 3 * sizeof(*dlc), GFP_KERNEL);
+	if (!dlc)
+		return -ENOMEM;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	ret = of_reserved_mem_device_init_by_idx(&pdev->dev, np, 0);
+	if (ret)
+		dev_warn(&pdev->dev, "no reserved DMA memory\n");
+
+	data->dai.cpus = &dlc[0];
+	data->dai.num_cpus = 1;
+	data->dai.platforms = &dlc[1];
+	data->dai.num_platforms = 1;
+	data->dai.codecs = &dlc[2];
+	data->dai.num_codecs = 1;
+
+	data->dai.name = "rpmsg hifi";
+	data->dai.stream_name = "rpmsg hifi";
+	data->dai.dai_fmt = SND_SOC_DAIFMT_I2S |
+			    SND_SOC_DAIFMT_NB_NF |
+			    SND_SOC_DAIFMT_CBC_CFC;
+
+	/*
+	 * i.MX rpmsg sound cards work on codec slave mode. MCLK will be
+	 * disabled by CPU DAI driver in hw_free(). Some codec requires MCLK
+	 * present at power up/down sequence. So need to set ignore_pmdown_time
+	 * to power down codec immediately before MCLK is turned off.
+	 */
+	data->dai.ignore_pmdown_time = 1;
+
+	/* Optional codec node */
+	ret = of_parse_phandle_with_fixed_args(np, "audio-codec", 0, 0, &args);
+	if (ret) {
+		data->dai.codecs->dai_name = "snd-soc-dummy-dai";
+		data->dai.codecs->name = "snd-soc-dummy";
+	} else {
+		struct clk *clk;
+
+		data->dai.codecs->of_node = args.np;
+		ret = snd_soc_get_dai_name(&args, &data->dai.codecs->dai_name);
+		if (ret) {
+			dev_err(&pdev->dev, "Unable to get codec_dai_name\n");
+			goto fail;
+		}
+
+		clk = devm_get_clk_from_child(&pdev->dev, args.np, NULL);
+		if (!IS_ERR(clk))
+			data->sysclk = clk_get_rate(clk);
+	}
+
+	data->dai.cpus->dai_name = dev_name(&rpmsg_pdev->dev);
+	data->dai.platforms->name = IMX_PCM_DRV_NAME;
+	data->dai.playback_only = true;
+	data->dai.capture_only = true;
+	data->card.num_links = 1;
+	data->card.dai_link = &data->dai;
+
+	if (of_property_read_bool(np, "fsl,rpmsg-out"))
+		data->dai.capture_only = false;
+
+	if (of_property_read_bool(np, "fsl,rpmsg-in"))
+		data->dai.playback_only = false;
+
+	if (data->dai.playback_only && data->dai.capture_only) {
+		dev_err(&pdev->dev, "no enabled rpmsg DAI link\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	data->card.dev = &pdev->dev;
+	data->card.owner = THIS_MODULE;
+	data->card.dapm_widgets = imx_rpmsg_dapm_widgets;
+	data->card.num_dapm_widgets = ARRAY_SIZE(imx_rpmsg_dapm_widgets);
+	data->card.late_probe = imx_rpmsg_late_probe;
+	/*
+	 * Inoder to use common api to get card name and audio routing.
+	 * Use parent of_node for this device, revert it after finishing using
+	 */
+	data->card.dev->of_node = np;
+
+	ret = snd_soc_of_parse_card_name(&data->card, "model");
+	if (ret)
+		goto fail;
+
+	if (of_property_read_bool(np, "audio-routing")) {
+		ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
+		if (ret) {
+			dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
+			goto fail;
+		}
+	}
+
+	platform_set_drvdata(pdev, &data->card);
+	snd_soc_card_set_drvdata(&data->card, data);
+	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");
+		goto fail;
+	}
+
+fail:
+	pdev->dev.of_node = NULL;
+	return ret;
+}
+
+static struct platform_driver imx_rpmsg_driver = {
+	.driver = {
+		.name = "imx-audio-rpmsg",
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = imx_rpmsg_probe,
+};
+module_platform_driver(imx_rpmsg_driver);
+
+MODULE_DESCRIPTION("Freescale SoC Audio RPMSG Machine Driver");
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_ALIAS("platform:imx-audio-rpmsg");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
new file mode 100644
index 000000000..580a0d963
--- /dev/null
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -0,0 +1,226 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright 2012 Freescale Semiconductor, Inc.
+// Copyright 2012 Linaro Ltd.
+
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/i2c.h>
+#include <linux/clk.h>
+#include <sound/soc.h>
+
+#include "../codecs/sgtl5000.h"
+#include "imx-audmux.h"
+
+#define DAI_NAME_SIZE	32
+
+struct imx_sgtl5000_data {
+	struct snd_soc_dai_link dai;
+	struct snd_soc_card card;
+	char codec_dai_name[DAI_NAME_SIZE];
+	char platform_name[DAI_NAME_SIZE];
+	struct clk *codec_clk;
+	unsigned int clk_frequency;
+};
+
+static int imx_sgtl5000_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(rtd->card);
+	struct device *dev = rtd->card->dev;
+	int ret;
+
+	ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), SGTL5000_SYSCLK,
+				     data->clk_frequency, SND_SOC_CLOCK_IN);
+	if (ret) {
+		dev_err(dev, "could not set codec driver clock params\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget imx_sgtl5000_dapm_widgets[] = {
+	SND_SOC_DAPM_MIC("Mic Jack", NULL),
+	SND_SOC_DAPM_LINE("Line In Jack", NULL),
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_SPK("Line Out Jack", NULL),
+	SND_SOC_DAPM_SPK("Ext Spk", NULL),
+};
+
+static int imx_sgtl5000_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *ssi_np, *codec_np;
+	struct platform_device *ssi_pdev;
+	struct i2c_client *codec_dev;
+	struct imx_sgtl5000_data *data = NULL;
+	struct snd_soc_dai_link_component *comp;
+	int int_port, ext_port;
+	int ret;
+
+	ret = of_property_read_u32(np, "mux-int-port", &int_port);
+	if (ret) {
+		dev_err(&pdev->dev, "mux-int-port missing or invalid\n");
+		return ret;
+	}
+	ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
+	if (ret) {
+		dev_err(&pdev->dev, "mux-ext-port missing or invalid\n");
+		return ret;
+	}
+
+	/*
+	 * The port numbering in the hardware manual starts at 1, while
+	 * the audmux API expects it starts at 0.
+	 */
+	int_port--;
+	ext_port--;
+	ret = imx_audmux_v2_configure_port(int_port,
+			IMX_AUDMUX_V2_PTCR_SYN |
+			IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
+			IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
+			IMX_AUDMUX_V2_PTCR_TFSDIR |
+			IMX_AUDMUX_V2_PTCR_TCLKDIR,
+			IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
+	if (ret) {
+		dev_err(&pdev->dev, "audmux internal port setup failed\n");
+		return ret;
+	}
+	ret = imx_audmux_v2_configure_port(ext_port,
+			IMX_AUDMUX_V2_PTCR_SYN,
+			IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
+	if (ret) {
+		dev_err(&pdev->dev, "audmux external port setup failed\n");
+		return ret;
+	}
+
+	ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0);
+	codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0);
+	if (!ssi_np || !codec_np) {
+		dev_err(&pdev->dev, "phandle missing or invalid\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	ssi_pdev = of_find_device_by_node(ssi_np);
+	if (!ssi_pdev) {
+		dev_dbg(&pdev->dev, "failed to find SSI platform device\n");
+		ret = -EPROBE_DEFER;
+		goto fail;
+	}
+	put_device(&ssi_pdev->dev);
+	codec_dev = of_find_i2c_device_by_node(codec_np);
+	if (!codec_dev) {
+		dev_dbg(&pdev->dev, "failed to find codec platform device\n");
+		ret = -EPROBE_DEFER;
+		goto fail;
+	}
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		ret = -ENOMEM;
+		goto put_device;
+	}
+
+	comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL);
+	if (!comp) {
+		ret = -ENOMEM;
+		goto put_device;
+	}
+
+	data->codec_clk = clk_get(&codec_dev->dev, NULL);
+	if (IS_ERR(data->codec_clk)) {
+		ret = PTR_ERR(data->codec_clk);
+		goto put_device;
+	}
+
+	data->clk_frequency = clk_get_rate(data->codec_clk);
+
+	data->dai.cpus		= &comp[0];
+	data->dai.codecs	= &comp[1];
+	data->dai.platforms	= &comp[2];
+
+	data->dai.num_cpus	= 1;
+	data->dai.num_codecs	= 1;
+	data->dai.num_platforms	= 1;
+
+	data->dai.name = "HiFi";
+	data->dai.stream_name = "HiFi";
+	data->dai.codecs->dai_name = "sgtl5000";
+	data->dai.codecs->of_node = codec_np;
+	data->dai.cpus->of_node = ssi_np;
+	data->dai.platforms->of_node = ssi_np;
+	data->dai.init = &imx_sgtl5000_dai_init;
+	data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			    SND_SOC_DAIFMT_CBP_CFP;
+
+	data->card.dev = &pdev->dev;
+	ret = snd_soc_of_parse_card_name(&data->card, "model");
+	if (ret)
+		goto put_device;
+	ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
+	if (ret)
+		goto put_device;
+	data->card.num_links = 1;
+	data->card.owner = THIS_MODULE;
+	data->card.dai_link = &data->dai;
+	data->card.dapm_widgets = imx_sgtl5000_dapm_widgets;
+	data->card.num_dapm_widgets = ARRAY_SIZE(imx_sgtl5000_dapm_widgets);
+
+	platform_set_drvdata(pdev, &data->card);
+	snd_soc_card_set_drvdata(&data->card, data);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");
+		goto put_device;
+	}
+
+	of_node_put(ssi_np);
+	of_node_put(codec_np);
+
+	return 0;
+
+put_device:
+	put_device(&codec_dev->dev);
+fail:
+	if (data && !IS_ERR(data->codec_clk))
+		clk_put(data->codec_clk);
+	of_node_put(ssi_np);
+	of_node_put(codec_np);
+
+	return ret;
+}
+
+static int imx_sgtl5000_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(card);
+
+	clk_put(data->codec_clk);
+
+	return 0;
+}
+
+static const struct of_device_id imx_sgtl5000_dt_ids[] = {
+	{ .compatible = "fsl,imx-audio-sgtl5000", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_sgtl5000_dt_ids);
+
+static struct platform_driver imx_sgtl5000_driver = {
+	.driver = {
+		.name = "imx-sgtl5000",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = imx_sgtl5000_dt_ids,
+	},
+	.probe = imx_sgtl5000_probe,
+	.remove = imx_sgtl5000_remove,
+};
+module_platform_driver(imx_sgtl5000_driver);
+
+MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
+MODULE_DESCRIPTION("Freescale i.MX SGTL5000 ASoC machine driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:imx-sgtl5000");
diff --git a/sound/soc/fsl/imx-spdif.c b/sound/soc/fsl/imx-spdif.c
new file mode 100644
index 000000000..4446fba75
--- /dev/null
+++ b/sound/soc/fsl/imx-spdif.c
@@ -0,0 +1,102 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// Copyright (C) 2013 Freescale Semiconductor, Inc.
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <sound/soc.h>
+
+struct imx_spdif_data {
+	struct snd_soc_dai_link dai;
+	struct snd_soc_card card;
+};
+
+static int imx_spdif_audio_probe(struct platform_device *pdev)
+{
+	struct device_node *spdif_np, *np = pdev->dev.of_node;
+	struct imx_spdif_data *data;
+	struct snd_soc_dai_link_component *comp;
+	int ret = 0;
+
+	spdif_np = of_parse_phandle(np, "spdif-controller", 0);
+	if (!spdif_np) {
+		dev_err(&pdev->dev, "failed to find spdif-controller\n");
+		ret = -EINVAL;
+		goto end;
+	}
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
+	comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL);
+	if (!data || !comp) {
+		ret = -ENOMEM;
+		goto end;
+	}
+
+	data->dai.cpus		= &comp[0];
+	data->dai.codecs	= &comp[1];
+	data->dai.platforms	= &comp[2];
+
+	data->dai.num_cpus	= 1;
+	data->dai.num_codecs	= 1;
+	data->dai.num_platforms	= 1;
+
+	data->dai.name = "S/PDIF PCM";
+	data->dai.stream_name = "S/PDIF PCM";
+	data->dai.codecs->dai_name = "snd-soc-dummy-dai";
+	data->dai.codecs->name = "snd-soc-dummy";
+	data->dai.cpus->of_node = spdif_np;
+	data->dai.platforms->of_node = spdif_np;
+	data->dai.playback_only = true;
+	data->dai.capture_only = true;
+
+	if (of_property_read_bool(np, "spdif-out"))
+		data->dai.capture_only = false;
+
+	if (of_property_read_bool(np, "spdif-in"))
+		data->dai.playback_only = false;
+
+	if (data->dai.playback_only && data->dai.capture_only) {
+		dev_err(&pdev->dev, "no enabled S/PDIF DAI link\n");
+		goto end;
+	}
+
+	data->card.dev = &pdev->dev;
+	data->card.dai_link = &data->dai;
+	data->card.num_links = 1;
+	data->card.owner = THIS_MODULE;
+
+	ret = snd_soc_of_parse_card_name(&data->card, "model");
+	if (ret)
+		goto end;
+
+	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
+	if (ret)
+		dev_err_probe(&pdev->dev, ret, "snd_soc_register_card failed\n");
+
+end:
+	of_node_put(spdif_np);
+
+	return ret;
+}
+
+static const struct of_device_id imx_spdif_dt_ids[] = {
+	{ .compatible = "fsl,imx-audio-spdif", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, imx_spdif_dt_ids);
+
+static struct platform_driver imx_spdif_driver = {
+	.driver = {
+		.name = "imx-spdif",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = imx_spdif_dt_ids,
+	},
+	.probe = imx_spdif_audio_probe,
+};
+
+module_platform_driver(imx_spdif_driver);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Freescale i.MX S/PDIF machine driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:imx-spdif");
diff --git a/sound/soc/fsl/imx-ssi.h b/sound/soc/fsl/imx-ssi.h
new file mode 100644
index 000000000..2d30d8224
--- /dev/null
+++ b/sound/soc/fsl/imx-ssi.h
@@ -0,0 +1,214 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _IMX_SSI_H
+#define _IMX_SSI_H
+
+#define SSI_STX0	0x00
+#define SSI_STX1	0x04
+#define SSI_SRX0	0x08
+#define SSI_SRX1	0x0c
+
+#define SSI_SCR		0x10
+#define SSI_SCR_CLK_IST		(1 << 9)
+#define SSI_SCR_CLK_IST_SHIFT	9
+#define SSI_SCR_TCH_EN		(1 << 8)
+#define SSI_SCR_SYS_CLK_EN	(1 << 7)
+#define SSI_SCR_I2S_MODE_NORM	(0 << 5)
+#define SSI_SCR_I2S_MODE_MSTR	(1 << 5)
+#define SSI_SCR_I2S_MODE_SLAVE	(2 << 5)
+#define SSI_I2S_MODE_MASK	(3 << 5)
+#define SSI_SCR_SYN		(1 << 4)
+#define SSI_SCR_NET		(1 << 3)
+#define SSI_SCR_RE		(1 << 2)
+#define SSI_SCR_TE		(1 << 1)
+#define SSI_SCR_SSIEN		(1 << 0)
+
+#define SSI_SISR	0x14
+#define SSI_SISR_MASK		((1 << 19) - 1)
+#define SSI_SISR_CMDAU		(1 << 18)
+#define SSI_SISR_CMDDU		(1 << 17)
+#define SSI_SISR_RXT		(1 << 16)
+#define SSI_SISR_RDR1		(1 << 15)
+#define SSI_SISR_RDR0		(1 << 14)
+#define SSI_SISR_TDE1		(1 << 13)
+#define SSI_SISR_TDE0		(1 << 12)
+#define SSI_SISR_ROE1		(1 << 11)
+#define SSI_SISR_ROE0		(1 << 10)
+#define SSI_SISR_TUE1		(1 << 9)
+#define SSI_SISR_TUE0		(1 << 8)
+#define SSI_SISR_TFS		(1 << 7)
+#define SSI_SISR_RFS		(1 << 6)
+#define SSI_SISR_TLS		(1 << 5)
+#define SSI_SISR_RLS		(1 << 4)
+#define SSI_SISR_RFF1		(1 << 3)
+#define SSI_SISR_RFF0		(1 << 2)
+#define SSI_SISR_TFE1		(1 << 1)
+#define SSI_SISR_TFE0		(1 << 0)
+
+#define SSI_SIER	0x18
+#define SSI_SIER_RDMAE		(1 << 22)
+#define SSI_SIER_RIE		(1 << 21)
+#define SSI_SIER_TDMAE		(1 << 20)
+#define SSI_SIER_TIE		(1 << 19)
+#define SSI_SIER_CMDAU_EN	(1 << 18)
+#define SSI_SIER_CMDDU_EN	(1 << 17)
+#define SSI_SIER_RXT_EN		(1 << 16)
+#define SSI_SIER_RDR1_EN	(1 << 15)
+#define SSI_SIER_RDR0_EN	(1 << 14)
+#define SSI_SIER_TDE1_EN	(1 << 13)
+#define SSI_SIER_TDE0_EN	(1 << 12)
+#define SSI_SIER_ROE1_EN	(1 << 11)
+#define SSI_SIER_ROE0_EN	(1 << 10)
+#define SSI_SIER_TUE1_EN	(1 << 9)
+#define SSI_SIER_TUE0_EN	(1 << 8)
+#define SSI_SIER_TFS_EN		(1 << 7)
+#define SSI_SIER_RFS_EN		(1 << 6)
+#define SSI_SIER_TLS_EN		(1 << 5)
+#define SSI_SIER_RLS_EN		(1 << 4)
+#define SSI_SIER_RFF1_EN	(1 << 3)
+#define SSI_SIER_RFF0_EN	(1 << 2)
+#define SSI_SIER_TFE1_EN	(1 << 1)
+#define SSI_SIER_TFE0_EN	(1 << 0)
+
+#define SSI_STCR	0x1c
+#define SSI_STCR_TXBIT0		(1 << 9)
+#define SSI_STCR_TFEN1		(1 << 8)
+#define SSI_STCR_TFEN0		(1 << 7)
+#define SSI_FIFO_ENABLE_0_SHIFT 7
+#define SSI_STCR_TFDIR		(1 << 6)
+#define SSI_STCR_TXDIR		(1 << 5)
+#define SSI_STCR_TSHFD		(1 << 4)
+#define SSI_STCR_TSCKP		(1 << 3)
+#define SSI_STCR_TFSI		(1 << 2)
+#define SSI_STCR_TFSL		(1 << 1)
+#define SSI_STCR_TEFS		(1 << 0)
+
+#define SSI_SRCR	0x20
+#define SSI_SRCR_RXBIT0		(1 << 9)
+#define SSI_SRCR_RFEN1		(1 << 8)
+#define SSI_SRCR_RFEN0		(1 << 7)
+#define SSI_FIFO_ENABLE_0_SHIFT 7
+#define SSI_SRCR_RFDIR		(1 << 6)
+#define SSI_SRCR_RXDIR		(1 << 5)
+#define SSI_SRCR_RSHFD		(1 << 4)
+#define SSI_SRCR_RSCKP		(1 << 3)
+#define SSI_SRCR_RFSI		(1 << 2)
+#define SSI_SRCR_RFSL		(1 << 1)
+#define SSI_SRCR_REFS		(1 << 0)
+
+#define SSI_SRCCR		0x28
+#define SSI_SRCCR_DIV2		(1 << 18)
+#define SSI_SRCCR_PSR		(1 << 17)
+#define SSI_SRCCR_WL(x)		((((x) - 2) >> 1) << 13)
+#define SSI_SRCCR_DC(x)		(((x) & 0x1f) << 8)
+#define SSI_SRCCR_PM(x)		(((x) & 0xff) << 0)
+#define SSI_SRCCR_WL_MASK	(0xf << 13)
+#define SSI_SRCCR_DC_MASK	(0x1f << 8)
+#define SSI_SRCCR_PM_MASK	(0xff << 0)
+
+#define SSI_STCCR		0x24
+#define SSI_STCCR_DIV2		(1 << 18)
+#define SSI_STCCR_PSR		(1 << 17)
+#define SSI_STCCR_WL(x)		((((x) - 2) >> 1) << 13)
+#define SSI_STCCR_DC(x)		(((x) & 0x1f) << 8)
+#define SSI_STCCR_PM(x)		(((x) & 0xff) << 0)
+#define SSI_STCCR_WL_MASK	(0xf << 13)
+#define SSI_STCCR_DC_MASK	(0x1f << 8)
+#define SSI_STCCR_PM_MASK	(0xff << 0)
+
+#define SSI_SFCSR	0x2c
+#define SSI_SFCSR_RFCNT1(x)	(((x) & 0xf) << 28)
+#define SSI_RX_FIFO_1_COUNT_SHIFT 28
+#define SSI_SFCSR_TFCNT1(x)	(((x) & 0xf) << 24)
+#define SSI_TX_FIFO_1_COUNT_SHIFT 24
+#define SSI_SFCSR_RFWM1(x)	(((x) & 0xf) << 20)
+#define SSI_SFCSR_TFWM1(x)	(((x) & 0xf) << 16)
+#define SSI_SFCSR_RFCNT0(x)	(((x) & 0xf) << 12)
+#define SSI_RX_FIFO_0_COUNT_SHIFT 12
+#define SSI_SFCSR_TFCNT0(x)	(((x) & 0xf) <<  8)
+#define SSI_TX_FIFO_0_COUNT_SHIFT 8
+#define SSI_SFCSR_RFWM0(x)	(((x) & 0xf) <<  4)
+#define SSI_SFCSR_TFWM0(x)	(((x) & 0xf) <<  0)
+#define SSI_SFCSR_RFWM0_MASK	(0xf <<  4)
+#define SSI_SFCSR_TFWM0_MASK	(0xf <<  0)
+
+#define SSI_STR		0x30
+#define SSI_STR_TEST		(1 << 15)
+#define SSI_STR_RCK2TCK		(1 << 14)
+#define SSI_STR_RFS2TFS		(1 << 13)
+#define SSI_STR_RXSTATE(x)	(((x) & 0xf) << 8)
+#define SSI_STR_TXD2RXD		(1 <<  7)
+#define SSI_STR_TCK2RCK		(1 <<  6)
+#define SSI_STR_TFS2RFS		(1 <<  5)
+#define SSI_STR_TXSTATE(x)	(((x) & 0xf) << 0)
+
+#define SSI_SOR		0x34
+#define SSI_SOR_CLKOFF		(1 << 6)
+#define SSI_SOR_RX_CLR		(1 << 5)
+#define SSI_SOR_TX_CLR		(1 << 4)
+#define SSI_SOR_INIT		(1 << 3)
+#define SSI_SOR_WAIT(x)		(((x) & 0x3) << 1)
+#define SSI_SOR_WAIT_MASK	(0x3 << 1)
+#define SSI_SOR_SYNRST		(1 << 0)
+
+#define SSI_SACNT	0x38
+#define SSI_SACNT_FRDIV(x)	(((x) & 0x3f) << 5)
+#define SSI_SACNT_WR		(1 << 4)
+#define SSI_SACNT_RD		(1 << 3)
+#define SSI_SACNT_TIF		(1 << 2)
+#define SSI_SACNT_FV		(1 << 1)
+#define SSI_SACNT_AC97EN	(1 << 0)
+
+#define SSI_SACADD	0x3c
+#define SSI_SACDAT	0x40
+#define SSI_SATAG	0x44
+#define SSI_STMSK	0x48
+#define SSI_SRMSK	0x4c
+#define SSI_SACCST	0x50
+#define SSI_SACCEN	0x54
+#define SSI_SACCDIS	0x58
+
+/* SSI clock sources */
+#define IMX_SSP_SYS_CLK		0
+
+/* SSI audio dividers */
+#define IMX_SSI_TX_DIV_2	0
+#define IMX_SSI_TX_DIV_PSR	1
+#define IMX_SSI_TX_DIV_PM	2
+#define IMX_SSI_RX_DIV_2	3
+#define IMX_SSI_RX_DIV_PSR	4
+#define IMX_SSI_RX_DIV_PM	5
+
+#define DRV_NAME "imx-ssi"
+
+#include <linux/dmaengine.h>
+#include <linux/dma/imx-dma.h>
+#include <sound/dmaengine_pcm.h>
+#include "imx-pcm.h"
+
+struct imx_ssi {
+	struct platform_device *ac97_dev;
+
+	struct snd_soc_dai *imx_ac97;
+	struct clk *clk;
+	void __iomem *base;
+	int irq;
+	int fiq_enable;
+	unsigned int offset;
+
+	unsigned int flags;
+
+	void (*ac97_reset) (struct snd_ac97 *ac97);
+	void (*ac97_warm_reset)(struct snd_ac97 *ac97);
+
+	struct snd_dmaengine_dai_dma_data dma_params_rx;
+	struct snd_dmaengine_dai_dma_data dma_params_tx;
+	struct imx_dma_data filter_data_tx;
+	struct imx_dma_data filter_data_rx;
+	struct imx_pcm_fiq_params fiq_params;
+
+	int fiq_init;
+	int dma_init;
+};
+
+#endif /* _IMX_SSI_H */
diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c
new file mode 100644
index 000000000..3f7ccae3f
--- /dev/null
+++ b/sound/soc/fsl/mpc5200_dma.c
@@ -0,0 +1,457 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Freescale MPC5200 PSC DMA
+// ALSA SoC Platform driver
+//
+// Copyright (C) 2008 Secret Lab Technologies Ltd.
+// Copyright (C) 2009 Jon Smirl, Digispeaker
+
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+
+#include <sound/soc.h>
+
+#include <linux/fsl/bestcomm/bestcomm.h>
+#include <linux/fsl/bestcomm/gen_bd.h>
+#include <asm/mpc52xx_psc.h>
+
+#include "mpc5200_dma.h"
+
+#define DRV_NAME "mpc5200_dma"
+
+/*
+ * Interrupt handlers
+ */
+static irqreturn_t psc_dma_status_irq(int irq, void *_psc_dma)
+{
+	struct psc_dma *psc_dma = _psc_dma;
+	struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
+	u16 isr;
+
+	isr = in_be16(&regs->mpc52xx_psc_isr);
+
+	/* Playback underrun error */
+	if (psc_dma->playback.active && (isr & MPC52xx_PSC_IMR_TXEMP))
+		psc_dma->stats.underrun_count++;
+
+	/* Capture overrun error */
+	if (psc_dma->capture.active && (isr & MPC52xx_PSC_IMR_ORERR))
+		psc_dma->stats.overrun_count++;
+
+	out_8(&regs->command, MPC52xx_PSC_RST_ERR_STAT);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * psc_dma_bcom_enqueue_next_buffer - Enqueue another audio buffer
+ * @s: pointer to stream private data structure
+ *
+ * Enqueues another audio period buffer into the bestcomm queue.
+ *
+ * Note: The routine must only be called when there is space available in
+ * the queue.  Otherwise the enqueue will fail and the audio ring buffer
+ * will get out of sync
+ */
+static void psc_dma_bcom_enqueue_next_buffer(struct psc_dma_stream *s)
+{
+	struct bcom_bd *bd;
+
+	/* Prepare and enqueue the next buffer descriptor */
+	bd = bcom_prepare_next_buffer(s->bcom_task);
+	bd->status = s->period_bytes;
+	bd->data[0] = s->runtime->dma_addr + (s->period_next * s->period_bytes);
+	bcom_submit_next_buffer(s->bcom_task, NULL);
+
+	/* Update for next period */
+	s->period_next = (s->period_next + 1) % s->runtime->periods;
+}
+
+/* Bestcomm DMA irq handler */
+static irqreturn_t psc_dma_bcom_irq(int irq, void *_psc_dma_stream)
+{
+	struct psc_dma_stream *s = _psc_dma_stream;
+
+	spin_lock(&s->psc_dma->lock);
+	/* For each finished period, dequeue the completed period buffer
+	 * and enqueue a new one in it's place. */
+	while (bcom_buffer_done(s->bcom_task)) {
+		bcom_retrieve_buffer(s->bcom_task, NULL, NULL);
+
+		s->period_current = (s->period_current+1) % s->runtime->periods;
+		s->period_count++;
+
+		psc_dma_bcom_enqueue_next_buffer(s);
+	}
+	spin_unlock(&s->psc_dma->lock);
+
+	/* If the stream is active, then also inform the PCM middle layer
+	 * of the period finished event. */
+	if (s->active)
+		snd_pcm_period_elapsed(s->stream);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * psc_dma_trigger: start and stop the DMA transfer.
+ * @component: triggered component
+ * @substream: triggered substream
+ * @cmd: triggered command
+ *
+ * This function is called by ALSA to start, stop, pause, and resume the DMA
+ * transfer of data.
+ */
+static int psc_dma_trigger(struct snd_soc_component *component,
+			   struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct psc_dma_stream *s = to_psc_dma_stream(substream, psc_dma);
+	struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
+	u16 imr;
+	unsigned long flags;
+	int i;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		dev_dbg(psc_dma->dev, "START: stream=%i fbits=%u ps=%u #p=%u\n",
+			substream->pstr->stream, runtime->frame_bits,
+			(int)runtime->period_size, runtime->periods);
+		s->period_bytes = frames_to_bytes(runtime,
+						  runtime->period_size);
+		s->period_next = 0;
+		s->period_current = 0;
+		s->active = 1;
+		s->period_count = 0;
+		s->runtime = runtime;
+
+		/* Fill up the bestcomm bd queue and enable DMA.
+		 * This will begin filling the PSC's fifo.
+		 */
+		spin_lock_irqsave(&psc_dma->lock, flags);
+
+		if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
+			bcom_gen_bd_rx_reset(s->bcom_task);
+		else
+			bcom_gen_bd_tx_reset(s->bcom_task);
+
+		for (i = 0; i < runtime->periods; i++)
+			if (!bcom_queue_full(s->bcom_task))
+				psc_dma_bcom_enqueue_next_buffer(s);
+
+		bcom_enable(s->bcom_task);
+		spin_unlock_irqrestore(&psc_dma->lock, flags);
+
+		out_8(&regs->command, MPC52xx_PSC_RST_ERR_STAT);
+
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+		dev_dbg(psc_dma->dev, "STOP: stream=%i periods_count=%i\n",
+			substream->pstr->stream, s->period_count);
+		s->active = 0;
+
+		spin_lock_irqsave(&psc_dma->lock, flags);
+		bcom_disable(s->bcom_task);
+		if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
+			bcom_gen_bd_rx_reset(s->bcom_task);
+		else
+			bcom_gen_bd_tx_reset(s->bcom_task);
+		spin_unlock_irqrestore(&psc_dma->lock, flags);
+
+		break;
+
+	default:
+		dev_dbg(psc_dma->dev, "unhandled trigger: stream=%i cmd=%i\n",
+			substream->pstr->stream, cmd);
+		return -EINVAL;
+	}
+
+	/* Update interrupt enable settings */
+	imr = 0;
+	if (psc_dma->playback.active)
+		imr |= MPC52xx_PSC_IMR_TXEMP;
+	if (psc_dma->capture.active)
+		imr |= MPC52xx_PSC_IMR_ORERR;
+	out_be16(&regs->isr_imr.imr, psc_dma->imr | imr);
+
+	return 0;
+}
+
+
+/* ---------------------------------------------------------------------
+ * The PSC DMA 'ASoC platform' driver
+ *
+ * Can be referenced by an 'ASoC machine' driver
+ * This driver only deals with the audio bus; it doesn't have any
+ * interaction with the attached codec
+ */
+
+static const struct snd_pcm_hardware psc_dma_hardware = {
+	.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_BATCH,
+	.formats = SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_BE |
+		SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S32_BE,
+	.period_bytes_max	= 1024 * 1024,
+	.period_bytes_min	= 32,
+	.periods_min		= 2,
+	.periods_max		= 256,
+	.buffer_bytes_max	= 2 * 1024 * 1024,
+	.fifo_size		= 512,
+};
+
+static int psc_dma_open(struct snd_soc_component *component,
+			struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	struct psc_dma_stream *s;
+	int rc;
+
+	dev_dbg(psc_dma->dev, "psc_dma_open(substream=%p)\n", substream);
+
+	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
+		s = &psc_dma->capture;
+	else
+		s = &psc_dma->playback;
+
+	snd_soc_set_runtime_hwparams(substream, &psc_dma_hardware);
+
+	rc = snd_pcm_hw_constraint_integer(runtime,
+		SNDRV_PCM_HW_PARAM_PERIODS);
+	if (rc < 0) {
+		dev_err(substream->pcm->card->dev, "invalid buffer size\n");
+		return rc;
+	}
+
+	s->stream = substream;
+	return 0;
+}
+
+static int psc_dma_close(struct snd_soc_component *component,
+			 struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	struct psc_dma_stream *s;
+
+	dev_dbg(psc_dma->dev, "psc_dma_close(substream=%p)\n", substream);
+
+	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
+		s = &psc_dma->capture;
+	else
+		s = &psc_dma->playback;
+
+	if (!psc_dma->playback.active &&
+	    !psc_dma->capture.active) {
+
+		/* Disable all interrupts and reset the PSC */
+		out_be16(&psc_dma->psc_regs->isr_imr.imr, psc_dma->imr);
+		out_8(&psc_dma->psc_regs->command, 4 << 4); /* reset error */
+	}
+	s->stream = NULL;
+	return 0;
+}
+
+static snd_pcm_uframes_t
+psc_dma_pointer(struct snd_soc_component *component,
+		struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	struct psc_dma_stream *s;
+	dma_addr_t count;
+
+	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
+		s = &psc_dma->capture;
+	else
+		s = &psc_dma->playback;
+
+	count = s->period_current * s->period_bytes;
+
+	return bytes_to_frames(substream->runtime, count);
+}
+
+static int psc_dma_new(struct snd_soc_component *component,
+		       struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_card *card = rtd->card->snd_card;
+	struct snd_soc_dai *dai = asoc_rtd_to_cpu(rtd, 0);
+	struct snd_pcm *pcm = rtd->pcm;
+	size_t size = psc_dma_hardware.buffer_bytes_max;
+	int rc;
+
+	dev_dbg(component->dev, "psc_dma_new(card=%p, dai=%p, pcm=%p)\n",
+		card, dai, pcm);
+
+	rc = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (rc)
+		return rc;
+
+	return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, card->dev,
+					    size);
+}
+
+static const struct snd_soc_component_driver mpc5200_audio_dma_component = {
+	.name		= DRV_NAME,
+	.open		= psc_dma_open,
+	.close		= psc_dma_close,
+	.pointer	= psc_dma_pointer,
+	.trigger	= psc_dma_trigger,
+	.pcm_construct	= psc_dma_new,
+};
+
+int mpc5200_audio_dma_create(struct platform_device *op)
+{
+	phys_addr_t fifo;
+	struct psc_dma *psc_dma;
+	struct resource res;
+	int size, irq, rc;
+	const __be32 *prop;
+	void __iomem *regs;
+	int ret;
+
+	/* Fetch the registers and IRQ of the PSC */
+	irq = irq_of_parse_and_map(op->dev.of_node, 0);
+	if (of_address_to_resource(op->dev.of_node, 0, &res)) {
+		dev_err(&op->dev, "Missing reg property\n");
+		return -ENODEV;
+	}
+	regs = ioremap(res.start, resource_size(&res));
+	if (!regs) {
+		dev_err(&op->dev, "Could not map registers\n");
+		return -ENODEV;
+	}
+
+	/* Allocate and initialize the driver private data */
+	psc_dma = kzalloc(sizeof *psc_dma, GFP_KERNEL);
+	if (!psc_dma) {
+		ret = -ENOMEM;
+		goto out_unmap;
+	}
+
+	/* Get the PSC ID */
+	prop = of_get_property(op->dev.of_node, "cell-index", &size);
+	if (!prop || size < sizeof *prop) {
+		ret = -ENODEV;
+		goto out_free;
+	}
+
+	spin_lock_init(&psc_dma->lock);
+	mutex_init(&psc_dma->mutex);
+	psc_dma->id = be32_to_cpu(*prop);
+	psc_dma->irq = irq;
+	psc_dma->psc_regs = regs;
+	psc_dma->fifo_regs = regs + sizeof *psc_dma->psc_regs;
+	psc_dma->dev = &op->dev;
+	psc_dma->playback.psc_dma = psc_dma;
+	psc_dma->capture.psc_dma = psc_dma;
+	snprintf(psc_dma->name, sizeof(psc_dma->name), "PSC%d", psc_dma->id);
+
+	/* Find the address of the fifo data registers and setup the
+	 * DMA tasks */
+	fifo = res.start + offsetof(struct mpc52xx_psc, buffer.buffer_32);
+	psc_dma->capture.bcom_task =
+		bcom_psc_gen_bd_rx_init(psc_dma->id, 10, fifo, 512);
+	psc_dma->playback.bcom_task =
+		bcom_psc_gen_bd_tx_init(psc_dma->id, 10, fifo);
+	if (!psc_dma->capture.bcom_task ||
+	    !psc_dma->playback.bcom_task) {
+		dev_err(&op->dev, "Could not allocate bestcomm tasks\n");
+		ret = -ENODEV;
+		goto out_free;
+	}
+
+	/* Disable all interrupts and reset the PSC */
+	out_be16(&psc_dma->psc_regs->isr_imr.imr, psc_dma->imr);
+	 /* reset receiver */
+	out_8(&psc_dma->psc_regs->command, MPC52xx_PSC_RST_RX);
+	 /* reset transmitter */
+	out_8(&psc_dma->psc_regs->command, MPC52xx_PSC_RST_TX);
+	 /* reset error */
+	out_8(&psc_dma->psc_regs->command, MPC52xx_PSC_RST_ERR_STAT);
+	 /* reset mode */
+	out_8(&psc_dma->psc_regs->command, MPC52xx_PSC_SEL_MODE_REG_1);
+
+	/* Set up mode register;
+	 * First write: RxRdy (FIFO Alarm) generates rx FIFO irq
+	 * Second write: register Normal mode for non loopback
+	 */
+	out_8(&psc_dma->psc_regs->mode, 0);
+	out_8(&psc_dma->psc_regs->mode, 0);
+
+	/* Set the TX and RX fifo alarm thresholds */
+	out_be16(&psc_dma->fifo_regs->rfalarm, 0x100);
+	out_8(&psc_dma->fifo_regs->rfcntl, 0x4);
+	out_be16(&psc_dma->fifo_regs->tfalarm, 0x100);
+	out_8(&psc_dma->fifo_regs->tfcntl, 0x7);
+
+	/* Lookup the IRQ numbers */
+	psc_dma->playback.irq =
+		bcom_get_task_irq(psc_dma->playback.bcom_task);
+	psc_dma->capture.irq =
+		bcom_get_task_irq(psc_dma->capture.bcom_task);
+
+	rc = request_irq(psc_dma->irq, &psc_dma_status_irq, IRQF_SHARED,
+			 "psc-dma-status", psc_dma);
+	rc |= request_irq(psc_dma->capture.irq, &psc_dma_bcom_irq, IRQF_SHARED,
+			  "psc-dma-capture", &psc_dma->capture);
+	rc |= request_irq(psc_dma->playback.irq, &psc_dma_bcom_irq, IRQF_SHARED,
+			  "psc-dma-playback", &psc_dma->playback);
+	if (rc) {
+		ret = -ENODEV;
+		goto out_irq;
+	}
+
+	/* Save what we've done so it can be found again later */
+	dev_set_drvdata(&op->dev, psc_dma);
+
+	/* Tell the ASoC OF helpers about it */
+	return devm_snd_soc_register_component(&op->dev,
+					&mpc5200_audio_dma_component, NULL, 0);
+out_irq:
+	free_irq(psc_dma->irq, psc_dma);
+	free_irq(psc_dma->capture.irq, &psc_dma->capture);
+	free_irq(psc_dma->playback.irq, &psc_dma->playback);
+out_free:
+	kfree(psc_dma);
+out_unmap:
+	iounmap(regs);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(mpc5200_audio_dma_create);
+
+int mpc5200_audio_dma_destroy(struct platform_device *op)
+{
+	struct psc_dma *psc_dma = dev_get_drvdata(&op->dev);
+
+	dev_dbg(&op->dev, "mpc5200_audio_dma_destroy()\n");
+
+	bcom_gen_bd_rx_release(psc_dma->capture.bcom_task);
+	bcom_gen_bd_tx_release(psc_dma->playback.bcom_task);
+
+	/* Release irqs */
+	free_irq(psc_dma->irq, psc_dma);
+	free_irq(psc_dma->capture.irq, &psc_dma->capture);
+	free_irq(psc_dma->playback.irq, &psc_dma->playback);
+
+	iounmap(psc_dma->psc_regs);
+	kfree(psc_dma);
+	dev_set_drvdata(&op->dev, NULL);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(mpc5200_audio_dma_destroy);
+
+MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>");
+MODULE_DESCRIPTION("Freescale MPC5200 PSC in DMA mode ASoC Driver");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/fsl/mpc5200_dma.h b/sound/soc/fsl/mpc5200_dma.h
new file mode 100644
index 000000000..d7ee33b5b
--- /dev/null
+++ b/sound/soc/fsl/mpc5200_dma.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Freescale MPC5200 Audio DMA driver
+ */
+
+#ifndef __SOUND_SOC_FSL_MPC5200_DMA_H__
+#define __SOUND_SOC_FSL_MPC5200_DMA_H__
+
+#define PSC_STREAM_NAME_LEN 32
+
+/**
+ * psc_ac97_stream - Data specific to a single stream (playback or capture)
+ * @active:		flag indicating if the stream is active
+ * @psc_dma:		pointer back to parent psc_dma data structure
+ * @bcom_task:		bestcomm task structure
+ * @irq:		irq number for bestcomm task
+ * @period_end:		physical address of end of DMA region
+ * @period_next_pt:	physical address of next DMA buffer to enqueue
+ * @period_bytes:	size of DMA period in bytes
+ * @ac97_slot_bits:	Enable bits for turning on the correct AC97 slot
+ */
+struct psc_dma_stream {
+	struct snd_pcm_runtime *runtime;
+	int active;
+	struct psc_dma *psc_dma;
+	struct bcom_task *bcom_task;
+	int irq;
+	struct snd_pcm_substream *stream;
+	int period_next;
+	int period_current;
+	int period_bytes;
+	int period_count;
+
+	/* AC97 state */
+	u32 ac97_slot_bits;
+};
+
+/**
+ * psc_dma - Private driver data
+ * @name: short name for this device ("PSC0", "PSC1", etc)
+ * @psc_regs: pointer to the PSC's registers
+ * @fifo_regs: pointer to the PSC's FIFO registers
+ * @irq: IRQ of this PSC
+ * @dev: struct device pointer
+ * @dai: the CPU DAI for this device
+ * @sicr: Base value used in serial interface control register; mode is ORed
+ *        with this value.
+ * @playback: Playback stream context data
+ * @capture: Capture stream context data
+ */
+struct psc_dma {
+	char name[32];
+	struct mpc52xx_psc __iomem *psc_regs;
+	struct mpc52xx_psc_fifo __iomem *fifo_regs;
+	unsigned int irq;
+	struct device *dev;
+	spinlock_t lock;
+	struct mutex mutex;
+	u32 sicr;
+	uint sysclk;
+	int imr;
+	int id;
+	unsigned int slots;
+
+	/* per-stream data */
+	struct psc_dma_stream playback;
+	struct psc_dma_stream capture;
+
+	/* Statistics */
+	struct {
+		unsigned long overrun_count;
+		unsigned long underrun_count;
+	} stats;
+};
+
+/* Utility for retrieving psc_dma_stream structure from a substream */
+static inline struct psc_dma_stream *
+to_psc_dma_stream(struct snd_pcm_substream *substream, struct psc_dma *psc_dma)
+{
+	if (substream->pstr->stream == SNDRV_PCM_STREAM_CAPTURE)
+		return &psc_dma->capture;
+	return &psc_dma->playback;
+}
+
+int mpc5200_audio_dma_create(struct platform_device *op);
+int mpc5200_audio_dma_destroy(struct platform_device *op);
+
+#endif /* __SOUND_SOC_FSL_MPC5200_DMA_H__ */
diff --git a/sound/soc/fsl/mpc5200_psc_ac97.c b/sound/soc/fsl/mpc5200_psc_ac97.c
new file mode 100644
index 000000000..a082ae636
--- /dev/null
+++ b/sound/soc/fsl/mpc5200_psc_ac97.c
@@ -0,0 +1,344 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// linux/sound/mpc5200-ac97.c -- AC97 support for the Freescale MPC52xx chip.
+//
+// Copyright (C) 2009 Jon Smirl, Digispeaker
+// Author: Jon Smirl <jonsmirl@gmail.com>
+
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#include <linux/delay.h>
+#include <linux/time.h>
+
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <asm/time.h>
+#include <asm/delay.h>
+#include <asm/mpc52xx.h>
+#include <asm/mpc52xx_psc.h>
+
+#include "mpc5200_dma.h"
+
+#define DRV_NAME "mpc5200-psc-ac97"
+
+/* ALSA only supports a single AC97 device so static is recommend here */
+static struct psc_dma *psc_dma;
+
+static unsigned short psc_ac97_read(struct snd_ac97 *ac97, unsigned short reg)
+{
+	int status;
+	unsigned int val;
+
+	mutex_lock(&psc_dma->mutex);
+
+	/* Wait for command send status zero = ready */
+	status = spin_event_timeout(!(in_be16(&psc_dma->psc_regs->sr_csr.status) &
+				MPC52xx_PSC_SR_CMDSEND), 100, 0);
+	if (status == 0) {
+		pr_err("timeout on ac97 bus (rdy)\n");
+		mutex_unlock(&psc_dma->mutex);
+		return -ENODEV;
+	}
+
+	/* Force clear the data valid bit */
+	in_be32(&psc_dma->psc_regs->ac97_data);
+
+	/* Send the read */
+	out_be32(&psc_dma->psc_regs->ac97_cmd, (1<<31) | ((reg & 0x7f) << 24));
+
+	/* Wait for the answer */
+	status = spin_event_timeout((in_be16(&psc_dma->psc_regs->sr_csr.status) &
+				MPC52xx_PSC_SR_DATA_VAL), 100, 0);
+	if (status == 0) {
+		pr_err("timeout on ac97 read (val) %x\n",
+				in_be16(&psc_dma->psc_regs->sr_csr.status));
+		mutex_unlock(&psc_dma->mutex);
+		return -ENODEV;
+	}
+	/* Get the data */
+	val = in_be32(&psc_dma->psc_regs->ac97_data);
+	if (((val >> 24) & 0x7f) != reg) {
+		pr_err("reg echo error on ac97 read\n");
+		mutex_unlock(&psc_dma->mutex);
+		return -ENODEV;
+	}
+	val = (val >> 8) & 0xffff;
+
+	mutex_unlock(&psc_dma->mutex);
+	return (unsigned short) val;
+}
+
+static void psc_ac97_write(struct snd_ac97 *ac97,
+				unsigned short reg, unsigned short val)
+{
+	int status;
+
+	mutex_lock(&psc_dma->mutex);
+
+	/* Wait for command status zero = ready */
+	status = spin_event_timeout(!(in_be16(&psc_dma->psc_regs->sr_csr.status) &
+				MPC52xx_PSC_SR_CMDSEND), 100, 0);
+	if (status == 0) {
+		pr_err("timeout on ac97 bus (write)\n");
+		goto out;
+	}
+	/* Write data */
+	out_be32(&psc_dma->psc_regs->ac97_cmd,
+			((reg & 0x7f) << 24) | (val << 8));
+
+ out:
+	mutex_unlock(&psc_dma->mutex);
+}
+
+static void psc_ac97_warm_reset(struct snd_ac97 *ac97)
+{
+	struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
+
+	mutex_lock(&psc_dma->mutex);
+
+	out_be32(&regs->sicr, psc_dma->sicr | MPC52xx_PSC_SICR_AWR);
+	udelay(3);
+	out_be32(&regs->sicr, psc_dma->sicr);
+
+	mutex_unlock(&psc_dma->mutex);
+}
+
+static void psc_ac97_cold_reset(struct snd_ac97 *ac97)
+{
+	struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
+
+	mutex_lock(&psc_dma->mutex);
+	dev_dbg(psc_dma->dev, "cold reset\n");
+
+	mpc5200_psc_ac97_gpio_reset(psc_dma->id);
+
+	/* Notify the PSC that a reset has occurred */
+	out_be32(&regs->sicr, psc_dma->sicr | MPC52xx_PSC_SICR_ACRB);
+
+	/* Re-enable RX and TX */
+	out_8(&regs->command, MPC52xx_PSC_TX_ENABLE | MPC52xx_PSC_RX_ENABLE);
+
+	mutex_unlock(&psc_dma->mutex);
+
+	usleep_range(1000, 2000);
+	psc_ac97_warm_reset(ac97);
+}
+
+static struct snd_ac97_bus_ops psc_ac97_ops = {
+	.read		= psc_ac97_read,
+	.write		= psc_ac97_write,
+	.reset		= psc_ac97_cold_reset,
+	.warm_reset	= psc_ac97_warm_reset,
+};
+
+static int psc_ac97_hw_analog_params(struct snd_pcm_substream *substream,
+				 struct snd_pcm_hw_params *params,
+				 struct snd_soc_dai *cpu_dai)
+{
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(cpu_dai);
+	struct psc_dma_stream *s = to_psc_dma_stream(substream, psc_dma);
+
+	dev_dbg(psc_dma->dev, "%s(substream=%p) p_size=%i p_bytes=%i"
+		" periods=%i buffer_size=%i  buffer_bytes=%i channels=%i"
+		" rate=%i format=%i\n",
+		__func__, substream, params_period_size(params),
+		params_period_bytes(params), params_periods(params),
+		params_buffer_size(params), params_buffer_bytes(params),
+		params_channels(params), params_rate(params),
+		params_format(params));
+
+	/* Determine the set of enable bits to turn on */
+	s->ac97_slot_bits = (params_channels(params) == 1) ? 0x100 : 0x300;
+	if (substream->pstr->stream != SNDRV_PCM_STREAM_CAPTURE)
+		s->ac97_slot_bits <<= 16;
+	return 0;
+}
+
+static int psc_ac97_hw_digital_params(struct snd_pcm_substream *substream,
+				 struct snd_pcm_hw_params *params,
+				 struct snd_soc_dai *cpu_dai)
+{
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(cpu_dai);
+
+	dev_dbg(psc_dma->dev, "%s(substream=%p)\n", __func__, substream);
+
+	if (params_channels(params) == 1)
+		out_be32(&psc_dma->psc_regs->ac97_slots, 0x01000000);
+	else
+		out_be32(&psc_dma->psc_regs->ac97_slots, 0x03000000);
+
+	return 0;
+}
+
+static int psc_ac97_trigger(struct snd_pcm_substream *substream, int cmd,
+							struct snd_soc_dai *dai)
+{
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(dai);
+	struct psc_dma_stream *s = to_psc_dma_stream(substream, psc_dma);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		dev_dbg(psc_dma->dev, "AC97 START: stream=%i\n",
+			substream->pstr->stream);
+
+		/* Set the slot enable bits */
+		psc_dma->slots |= s->ac97_slot_bits;
+		out_be32(&psc_dma->psc_regs->ac97_slots, psc_dma->slots);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+		dev_dbg(psc_dma->dev, "AC97 STOP: stream=%i\n",
+			substream->pstr->stream);
+
+		/* Clear the slot enable bits */
+		psc_dma->slots &= ~(s->ac97_slot_bits);
+		out_be32(&psc_dma->psc_regs->ac97_slots, psc_dma->slots);
+		break;
+	}
+	return 0;
+}
+
+static int psc_ac97_probe(struct snd_soc_dai *cpu_dai)
+{
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(cpu_dai);
+	struct mpc52xx_psc __iomem *regs = psc_dma->psc_regs;
+
+	/* Go */
+	out_8(&regs->command, MPC52xx_PSC_TX_ENABLE | MPC52xx_PSC_RX_ENABLE);
+	return 0;
+}
+
+/* ---------------------------------------------------------------------
+ * ALSA SoC Bindings
+ *
+ * - Digital Audio Interface (DAI) template
+ * - create/destroy dai hooks
+ */
+
+/**
+ * psc_ac97_dai_template: template CPU Digital Audio Interface
+ */
+static const struct snd_soc_dai_ops psc_ac97_analog_ops = {
+	.hw_params	= psc_ac97_hw_analog_params,
+	.trigger	= psc_ac97_trigger,
+};
+
+static const struct snd_soc_dai_ops psc_ac97_digital_ops = {
+	.hw_params	= psc_ac97_hw_digital_params,
+};
+
+static struct snd_soc_dai_driver psc_ac97_dai[] = {
+{
+	.name = "mpc5200-psc-ac97.0",
+	.probe	= psc_ac97_probe,
+	.playback = {
+		.stream_name	= "AC97 Playback",
+		.channels_min   = 1,
+		.channels_max   = 6,
+		.rates          = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S32_BE,
+	},
+	.capture = {
+		.stream_name	= "AC97 Capture",
+		.channels_min   = 1,
+		.channels_max   = 2,
+		.rates          = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S32_BE,
+	},
+	.ops = &psc_ac97_analog_ops,
+},
+{
+	.name = "mpc5200-psc-ac97.1",
+	.playback = {
+		.stream_name	= "AC97 SPDIF",
+		.channels_min   = 1,
+		.channels_max   = 2,
+		.rates          = SNDRV_PCM_RATE_32000 | \
+			SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
+	},
+	.ops = &psc_ac97_digital_ops,
+} };
+
+static const struct snd_soc_component_driver psc_ac97_component = {
+	.name		= DRV_NAME,
+};
+
+
+/* ---------------------------------------------------------------------
+ * OF platform bus binding code:
+ * - Probe/remove operations
+ * - OF device match table
+ */
+static int psc_ac97_of_probe(struct platform_device *op)
+{
+	int rc;
+	struct mpc52xx_psc __iomem *regs;
+
+	rc = mpc5200_audio_dma_create(op);
+	if (rc != 0)
+		return rc;
+
+	rc = snd_soc_set_ac97_ops(&psc_ac97_ops);
+	if (rc != 0) {
+		dev_err(&op->dev, "Failed to set AC'97 ops: %d\n", rc);
+		return rc;
+	}
+
+	rc = snd_soc_register_component(&op->dev, &psc_ac97_component,
+					psc_ac97_dai, ARRAY_SIZE(psc_ac97_dai));
+	if (rc != 0) {
+		dev_err(&op->dev, "Failed to register DAI\n");
+		return rc;
+	}
+
+	psc_dma = dev_get_drvdata(&op->dev);
+	regs = psc_dma->psc_regs;
+
+	psc_dma->imr = 0;
+	out_be16(&psc_dma->psc_regs->isr_imr.imr, psc_dma->imr);
+
+	/* Configure the serial interface mode to AC97 */
+	psc_dma->sicr = MPC52xx_PSC_SICR_SIM_AC97 | MPC52xx_PSC_SICR_ENAC97;
+	out_be32(&regs->sicr, psc_dma->sicr);
+
+	/* No slots active */
+	out_be32(&regs->ac97_slots, 0x00000000);
+
+	return 0;
+}
+
+static int psc_ac97_of_remove(struct platform_device *op)
+{
+	mpc5200_audio_dma_destroy(op);
+	snd_soc_unregister_component(&op->dev);
+	snd_soc_set_ac97_ops(NULL);
+	return 0;
+}
+
+/* Match table for of_platform binding */
+static const struct of_device_id psc_ac97_match[] = {
+	{ .compatible = "fsl,mpc5200-psc-ac97", },
+	{ .compatible = "fsl,mpc5200b-psc-ac97", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, psc_ac97_match);
+
+static struct platform_driver psc_ac97_driver = {
+	.probe = psc_ac97_of_probe,
+	.remove = psc_ac97_of_remove,
+	.driver = {
+		.name = "mpc5200-psc-ac97",
+		.of_match_table = psc_ac97_match,
+	},
+};
+
+module_platform_driver(psc_ac97_driver);
+
+MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
+MODULE_DESCRIPTION("mpc5200 AC97 module");
+MODULE_LICENSE("GPL");
+
diff --git a/sound/soc/fsl/mpc5200_psc_i2s.c b/sound/soc/fsl/mpc5200_psc_i2s.c
new file mode 100644
index 000000000..73f3e61f2
--- /dev/null
+++ b/sound/soc/fsl/mpc5200_psc_i2s.c
@@ -0,0 +1,242 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Freescale MPC5200 PSC in I2S mode
+// ALSA SoC Digital Audio Interface (DAI) driver
+//
+// Copyright (C) 2008 Secret Lab Technologies Ltd.
+// Copyright (C) 2009 Jon Smirl, Digispeaker
+
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include <asm/mpc52xx_psc.h>
+
+#include "mpc5200_dma.h"
+
+/**
+ * PSC_I2S_RATES: sample rates supported by the I2S
+ *
+ * This driver currently only supports the PSC running in I2S slave mode,
+ * which means the codec determines the sample rate.  Therefore, we tell
+ * ALSA that we support all rates and let the codec driver decide what rates
+ * are really supported.
+ */
+#define PSC_I2S_RATES SNDRV_PCM_RATE_CONTINUOUS
+
+/**
+ * PSC_I2S_FORMATS: audio formats supported by the PSC I2S mode
+ */
+#define PSC_I2S_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_BE | \
+			 SNDRV_PCM_FMTBIT_S24_BE | SNDRV_PCM_FMTBIT_S32_BE)
+
+static int psc_i2s_hw_params(struct snd_pcm_substream *substream,
+				 struct snd_pcm_hw_params *params,
+				 struct snd_soc_dai *dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+	u32 mode;
+
+	dev_dbg(psc_dma->dev, "%s(substream=%p) p_size=%i p_bytes=%i"
+		" periods=%i buffer_size=%i  buffer_bytes=%i\n",
+		__func__, substream, params_period_size(params),
+		params_period_bytes(params), params_periods(params),
+		params_buffer_size(params), params_buffer_bytes(params));
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S8:
+		mode = MPC52xx_PSC_SICR_SIM_CODEC_8;
+		break;
+	case SNDRV_PCM_FORMAT_S16_BE:
+		mode = MPC52xx_PSC_SICR_SIM_CODEC_16;
+		break;
+	case SNDRV_PCM_FORMAT_S24_BE:
+		mode = MPC52xx_PSC_SICR_SIM_CODEC_24;
+		break;
+	case SNDRV_PCM_FORMAT_S32_BE:
+		mode = MPC52xx_PSC_SICR_SIM_CODEC_32;
+		break;
+	default:
+		dev_dbg(psc_dma->dev, "invalid format\n");
+		return -EINVAL;
+	}
+	out_be32(&psc_dma->psc_regs->sicr, psc_dma->sicr | mode);
+
+	return 0;
+}
+
+/**
+ * psc_i2s_set_sysclk: set the clock frequency and direction
+ *
+ * This function is called by the machine driver to tell us what the clock
+ * frequency and direction are.
+ *
+ * Currently, we only support operating as a clock slave (SND_SOC_CLOCK_IN),
+ * and we don't care about the frequency.  Return an error if the direction
+ * is not SND_SOC_CLOCK_IN.
+ *
+ * @clk_id: reserved, should be zero
+ * @freq: the frequency of the given clock ID, currently ignored
+ * @dir: SND_SOC_CLOCK_IN (clock slave) or SND_SOC_CLOCK_OUT (clock master)
+ */
+static int psc_i2s_set_sysclk(struct snd_soc_dai *cpu_dai,
+			      int clk_id, unsigned int freq, int dir)
+{
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(cpu_dai);
+	dev_dbg(psc_dma->dev, "psc_i2s_set_sysclk(cpu_dai=%p, dir=%i)\n",
+				cpu_dai, dir);
+	return (dir == SND_SOC_CLOCK_IN) ? 0 : -EINVAL;
+}
+
+/**
+ * psc_i2s_set_fmt: set the serial format.
+ *
+ * This function is called by the machine driver to tell us what serial
+ * format to use.
+ *
+ * This driver only supports I2S mode.  Return an error if the format is
+ * not SND_SOC_DAIFMT_I2S.
+ *
+ * @format: one of SND_SOC_DAIFMT_xxx
+ */
+static int psc_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int format)
+{
+	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(cpu_dai);
+	dev_dbg(psc_dma->dev, "psc_i2s_set_fmt(cpu_dai=%p, format=%i)\n",
+				cpu_dai, format);
+	return (format == SND_SOC_DAIFMT_I2S) ? 0 : -EINVAL;
+}
+
+/* ---------------------------------------------------------------------
+ * ALSA SoC Bindings
+ *
+ * - Digital Audio Interface (DAI) template
+ * - create/destroy dai hooks
+ */
+
+/**
+ * psc_i2s_dai_template: template CPU Digital Audio Interface
+ */
+static const struct snd_soc_dai_ops psc_i2s_dai_ops = {
+	.hw_params	= psc_i2s_hw_params,
+	.set_sysclk	= psc_i2s_set_sysclk,
+	.set_fmt	= psc_i2s_set_fmt,
+};
+
+static struct snd_soc_dai_driver psc_i2s_dai[] = {{
+	.name = "mpc5200-psc-i2s.0",
+	.playback = {
+		.stream_name = "I2S Playback",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = PSC_I2S_RATES,
+		.formats = PSC_I2S_FORMATS,
+	},
+	.capture = {
+		.stream_name = "I2S Capture",
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = PSC_I2S_RATES,
+		.formats = PSC_I2S_FORMATS,
+	},
+	.ops = &psc_i2s_dai_ops,
+} };
+
+static const struct snd_soc_component_driver psc_i2s_component = {
+	.name			= "mpc5200-i2s",
+	.legacy_dai_naming	= 1,
+};
+
+/* ---------------------------------------------------------------------
+ * OF platform bus binding code:
+ * - Probe/remove operations
+ * - OF device match table
+ */
+static int psc_i2s_of_probe(struct platform_device *op)
+{
+	int rc;
+	struct psc_dma *psc_dma;
+	struct mpc52xx_psc __iomem *regs;
+
+	rc = mpc5200_audio_dma_create(op);
+	if (rc != 0)
+		return rc;
+
+	rc = snd_soc_register_component(&op->dev, &psc_i2s_component,
+					psc_i2s_dai, ARRAY_SIZE(psc_i2s_dai));
+	if (rc != 0) {
+		pr_err("Failed to register DAI\n");
+		return rc;
+	}
+
+	psc_dma = dev_get_drvdata(&op->dev);
+	regs = psc_dma->psc_regs;
+
+	/* Configure the serial interface mode; defaulting to CODEC8 mode */
+	psc_dma->sicr = MPC52xx_PSC_SICR_DTS1 | MPC52xx_PSC_SICR_I2S |
+			MPC52xx_PSC_SICR_CLKPOL;
+	out_be32(&psc_dma->psc_regs->sicr,
+		 psc_dma->sicr | MPC52xx_PSC_SICR_SIM_CODEC_8);
+
+	/* Check for the codec handle.  If it is not present then we
+	 * are done */
+	if (!of_get_property(op->dev.of_node, "codec-handle", NULL))
+		return 0;
+
+	/* Due to errata in the dma mode; need to line up enabling
+	 * the transmitter with a transition on the frame sync
+	 * line */
+
+	/* first make sure it is low */
+	while ((in_8(&regs->ipcr_acr.ipcr) & 0x80) != 0)
+		;
+	/* then wait for the transition to high */
+	while ((in_8(&regs->ipcr_acr.ipcr) & 0x80) == 0)
+		;
+	/* Finally, enable the PSC.
+	 * Receiver must always be enabled; even when we only want
+	 * transmit.  (see 15.3.2.3 of MPC5200B User's Guide) */
+
+	/* Go */
+	out_8(&psc_dma->psc_regs->command,
+			MPC52xx_PSC_TX_ENABLE | MPC52xx_PSC_RX_ENABLE);
+
+	return 0;
+
+}
+
+static int psc_i2s_of_remove(struct platform_device *op)
+{
+	mpc5200_audio_dma_destroy(op);
+	snd_soc_unregister_component(&op->dev);
+	return 0;
+}
+
+/* Match table for of_platform binding */
+static const struct of_device_id psc_i2s_match[] = {
+	{ .compatible = "fsl,mpc5200-psc-i2s", },
+	{ .compatible = "fsl,mpc5200b-psc-i2s", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, psc_i2s_match);
+
+static struct platform_driver psc_i2s_driver = {
+	.probe = psc_i2s_of_probe,
+	.remove = psc_i2s_of_remove,
+	.driver = {
+		.name = "mpc5200-psc-i2s",
+		.of_match_table = psc_i2s_match,
+	},
+};
+
+module_platform_driver(psc_i2s_driver);
+
+MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>");
+MODULE_DESCRIPTION("Freescale MPC5200 PSC in I2S mode ASoC Driver");
+MODULE_LICENSE("GPL");
+
diff --git a/sound/soc/fsl/mpc8610_hpcd.c b/sound/soc/fsl/mpc8610_hpcd.c
new file mode 100644
index 000000000..e71a992fb
--- /dev/null
+++ b/sound/soc/fsl/mpc8610_hpcd.c
@@ -0,0 +1,453 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale MPC8610HPCD ALSA SoC Machine driver
+//
+// Author: Timur Tabi <timur@freescale.com>
+//
+// Copyright 2007-2010 Freescale Semiconductor, Inc.
+
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/fsl/guts.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <sound/soc.h>
+
+#include "fsl_dma.h"
+#include "fsl_ssi.h"
+#include "fsl_utils.h"
+
+/* There's only one global utilities register */
+static phys_addr_t guts_phys;
+
+/**
+ * mpc8610_hpcd_data: machine-specific ASoC device data
+ *
+ * This structure contains data for a single sound platform device on an
+ * MPC8610 HPCD.  Some of the data is taken from the device tree.
+ */
+struct mpc8610_hpcd_data {
+	struct snd_soc_dai_link dai[2];
+	struct snd_soc_card card;
+	unsigned int dai_format;
+	unsigned int codec_clk_direction;
+	unsigned int cpu_clk_direction;
+	unsigned int clk_frequency;
+	unsigned int ssi_id;		/* 0 = SSI1, 1 = SSI2, etc */
+	unsigned int dma_id[2];		/* 0 = DMA1, 1 = DMA2, etc */
+	unsigned int dma_channel_id[2]; /* 0 = ch 0, 1 = ch 1, etc*/
+	char codec_dai_name[DAI_NAME_SIZE];
+	char platform_name[2][DAI_NAME_SIZE]; /* One for each DMA channel */
+};
+
+/**
+ * mpc8610_hpcd_machine_probe: initialize the board
+ *
+ * This function is used to initialize the board-specific hardware.
+ *
+ * Here we program the DMACR and PMUXCR registers.
+ */
+static int mpc8610_hpcd_machine_probe(struct snd_soc_card *card)
+{
+	struct mpc8610_hpcd_data *machine_data =
+		container_of(card, struct mpc8610_hpcd_data, card);
+	struct ccsr_guts __iomem *guts;
+
+	guts = ioremap(guts_phys, sizeof(struct ccsr_guts));
+	if (!guts) {
+		dev_err(card->dev, "could not map global utilities\n");
+		return -ENOMEM;
+	}
+
+	/* Program the signal routing between the SSI and the DMA */
+	guts_set_dmacr(guts, machine_data->dma_id[0],
+		       machine_data->dma_channel_id[0],
+		       CCSR_GUTS_DMACR_DEV_SSI);
+	guts_set_dmacr(guts, machine_data->dma_id[1],
+		       machine_data->dma_channel_id[1],
+		       CCSR_GUTS_DMACR_DEV_SSI);
+
+	guts_set_pmuxcr_dma(guts, machine_data->dma_id[0],
+			    machine_data->dma_channel_id[0], 0);
+	guts_set_pmuxcr_dma(guts, machine_data->dma_id[1],
+			    machine_data->dma_channel_id[1], 0);
+
+	switch (machine_data->ssi_id) {
+	case 0:
+		clrsetbits_be32(&guts->pmuxcr,
+			CCSR_GUTS_PMUXCR_SSI1_MASK, CCSR_GUTS_PMUXCR_SSI1_SSI);
+		break;
+	case 1:
+		clrsetbits_be32(&guts->pmuxcr,
+			CCSR_GUTS_PMUXCR_SSI2_MASK, CCSR_GUTS_PMUXCR_SSI2_SSI);
+		break;
+	}
+
+	iounmap(guts);
+
+	return 0;
+}
+
+/**
+ * mpc8610_hpcd_startup: program the board with various hardware parameters
+ *
+ * This function takes board-specific information, like clock frequencies
+ * and serial data formats, and passes that information to the codec and
+ * transport drivers.
+ */
+static int mpc8610_hpcd_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct mpc8610_hpcd_data *machine_data =
+		container_of(rtd->card, struct mpc8610_hpcd_data, card);
+	struct device *dev = rtd->card->dev;
+	int ret = 0;
+
+	/* Tell the codec driver what the serial protocol is. */
+	ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0), machine_data->dai_format);
+	if (ret < 0) {
+		dev_err(dev, "could not set codec driver audio format\n");
+		return ret;
+	}
+
+	/*
+	 * Tell the codec driver what the MCLK frequency is, and whether it's
+	 * a slave or master.
+	 */
+	ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0,
+				     machine_data->clk_frequency,
+				     machine_data->codec_clk_direction);
+	if (ret < 0) {
+		dev_err(dev, "could not set codec driver clock params\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * mpc8610_hpcd_machine_remove: Remove the sound device
+ *
+ * This function is called to remove the sound device for one SSI.  We
+ * de-program the DMACR and PMUXCR register.
+ */
+static int mpc8610_hpcd_machine_remove(struct snd_soc_card *card)
+{
+	struct mpc8610_hpcd_data *machine_data =
+		container_of(card, struct mpc8610_hpcd_data, card);
+	struct ccsr_guts __iomem *guts;
+
+	guts = ioremap(guts_phys, sizeof(struct ccsr_guts));
+	if (!guts) {
+		dev_err(card->dev, "could not map global utilities\n");
+		return -ENOMEM;
+	}
+
+	/* Restore the signal routing */
+
+	guts_set_dmacr(guts, machine_data->dma_id[0],
+		       machine_data->dma_channel_id[0], 0);
+	guts_set_dmacr(guts, machine_data->dma_id[1],
+		       machine_data->dma_channel_id[1], 0);
+
+	switch (machine_data->ssi_id) {
+	case 0:
+		clrsetbits_be32(&guts->pmuxcr,
+			CCSR_GUTS_PMUXCR_SSI1_MASK, CCSR_GUTS_PMUXCR_SSI1_LA);
+		break;
+	case 1:
+		clrsetbits_be32(&guts->pmuxcr,
+			CCSR_GUTS_PMUXCR_SSI2_MASK, CCSR_GUTS_PMUXCR_SSI2_LA);
+		break;
+	}
+
+	iounmap(guts);
+
+	return 0;
+}
+
+/**
+ * mpc8610_hpcd_ops: ASoC machine driver operations
+ */
+static const struct snd_soc_ops mpc8610_hpcd_ops = {
+	.startup = mpc8610_hpcd_startup,
+};
+
+/**
+ * mpc8610_hpcd_probe: platform probe function for the machine driver
+ *
+ * Although this is a machine driver, the SSI node is the "master" node with
+ * respect to audio hardware connections.  Therefore, we create a new ASoC
+ * device for each new SSI node that has a codec attached.
+ */
+static int mpc8610_hpcd_probe(struct platform_device *pdev)
+{
+	struct device *dev = pdev->dev.parent;
+	/* ssi_pdev is the platform device for the SSI node that probed us */
+	struct platform_device *ssi_pdev = to_platform_device(dev);
+	struct device_node *np = ssi_pdev->dev.of_node;
+	struct device_node *codec_np = NULL;
+	struct mpc8610_hpcd_data *machine_data;
+	struct snd_soc_dai_link_component *comp;
+	int ret;
+	const char *sprop;
+	const u32 *iprop;
+
+	/* Find the codec node for this SSI. */
+	codec_np = of_parse_phandle(np, "codec-handle", 0);
+	if (!codec_np) {
+		dev_err(dev, "invalid codec node\n");
+		return -EINVAL;
+	}
+
+	machine_data = kzalloc(sizeof(struct mpc8610_hpcd_data), GFP_KERNEL);
+	if (!machine_data) {
+		ret = -ENOMEM;
+		goto error_alloc;
+	}
+
+	comp = devm_kzalloc(&pdev->dev, 6 * sizeof(*comp), GFP_KERNEL);
+	if (!comp) {
+		ret = -ENOMEM;
+		goto error_alloc;
+	}
+
+	machine_data->dai[0].cpus	= &comp[0];
+	machine_data->dai[0].codecs	= &comp[1];
+	machine_data->dai[0].platforms	= &comp[2];
+
+	machine_data->dai[0].num_cpus		= 1;
+	machine_data->dai[0].num_codecs		= 1;
+	machine_data->dai[0].num_platforms	= 1;
+
+	machine_data->dai[1].cpus	= &comp[3];
+	machine_data->dai[1].codecs	= &comp[4];
+	machine_data->dai[1].platforms	= &comp[5];
+
+	machine_data->dai[1].num_cpus		= 1;
+	machine_data->dai[1].num_codecs		= 1;
+	machine_data->dai[1].num_platforms	= 1;
+
+	machine_data->dai[0].cpus->dai_name = dev_name(&ssi_pdev->dev);
+	machine_data->dai[0].ops = &mpc8610_hpcd_ops;
+
+	/* ASoC core can match codec with device node */
+	machine_data->dai[0].codecs->of_node = codec_np;
+
+	/* The DAI name from the codec (snd_soc_dai_driver.name) */
+	machine_data->dai[0].codecs->dai_name = "cs4270-hifi";
+
+	/* We register two DAIs per SSI, one for playback and the other for
+	 * capture.  Currently, we only support codecs that have one DAI for
+	 * both playback and capture.
+	 */
+	memcpy(&machine_data->dai[1], &machine_data->dai[0],
+	       sizeof(struct snd_soc_dai_link));
+
+	/* Get the device ID */
+	iprop = of_get_property(np, "cell-index", NULL);
+	if (!iprop) {
+		dev_err(&pdev->dev, "cell-index property not found\n");
+		ret = -EINVAL;
+		goto error;
+	}
+	machine_data->ssi_id = be32_to_cpup(iprop);
+
+	/* Get the serial format and clock direction. */
+	sprop = of_get_property(np, "fsl,mode", NULL);
+	if (!sprop) {
+		dev_err(&pdev->dev, "fsl,mode property not found\n");
+		ret = -EINVAL;
+		goto error;
+	}
+
+	if (strcasecmp(sprop, "i2s-slave") == 0) {
+		machine_data->dai_format =
+			SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBP_CFP;
+		machine_data->codec_clk_direction = SND_SOC_CLOCK_OUT;
+		machine_data->cpu_clk_direction = SND_SOC_CLOCK_IN;
+
+		/* In i2s-slave mode, the codec has its own clock source, so we
+		 * need to get the frequency from the device tree and pass it to
+		 * the codec driver.
+		 */
+		iprop = of_get_property(codec_np, "clock-frequency", NULL);
+		if (!iprop || !*iprop) {
+			dev_err(&pdev->dev, "codec bus-frequency "
+				"property is missing or invalid\n");
+			ret = -EINVAL;
+			goto error;
+		}
+		machine_data->clk_frequency = be32_to_cpup(iprop);
+	} else if (strcasecmp(sprop, "i2s-master") == 0) {
+		machine_data->dai_format =
+			SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBC_CFC;
+		machine_data->codec_clk_direction = SND_SOC_CLOCK_IN;
+		machine_data->cpu_clk_direction = SND_SOC_CLOCK_OUT;
+	} else if (strcasecmp(sprop, "lj-slave") == 0) {
+		machine_data->dai_format =
+			SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_CBP_CFP;
+		machine_data->codec_clk_direction = SND_SOC_CLOCK_OUT;
+		machine_data->cpu_clk_direction = SND_SOC_CLOCK_IN;
+	} else if (strcasecmp(sprop, "lj-master") == 0) {
+		machine_data->dai_format =
+			SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_CBC_CFC;
+		machine_data->codec_clk_direction = SND_SOC_CLOCK_IN;
+		machine_data->cpu_clk_direction = SND_SOC_CLOCK_OUT;
+	} else if (strcasecmp(sprop, "rj-slave") == 0) {
+		machine_data->dai_format =
+			SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_CBP_CFP;
+		machine_data->codec_clk_direction = SND_SOC_CLOCK_OUT;
+		machine_data->cpu_clk_direction = SND_SOC_CLOCK_IN;
+	} else if (strcasecmp(sprop, "rj-master") == 0) {
+		machine_data->dai_format =
+			SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_CBC_CFC;
+		machine_data->codec_clk_direction = SND_SOC_CLOCK_IN;
+		machine_data->cpu_clk_direction = SND_SOC_CLOCK_OUT;
+	} else if (strcasecmp(sprop, "ac97-slave") == 0) {
+		machine_data->dai_format =
+			SND_SOC_DAIFMT_AC97 | SND_SOC_DAIFMT_CBP_CFP;
+		machine_data->codec_clk_direction = SND_SOC_CLOCK_OUT;
+		machine_data->cpu_clk_direction = SND_SOC_CLOCK_IN;
+	} else if (strcasecmp(sprop, "ac97-master") == 0) {
+		machine_data->dai_format =
+			SND_SOC_DAIFMT_AC97 | SND_SOC_DAIFMT_CBC_CFC;
+		machine_data->codec_clk_direction = SND_SOC_CLOCK_IN;
+		machine_data->cpu_clk_direction = SND_SOC_CLOCK_OUT;
+	} else {
+		dev_err(&pdev->dev,
+			"unrecognized fsl,mode property '%s'\n", sprop);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	if (!machine_data->clk_frequency) {
+		dev_err(&pdev->dev, "unknown clock frequency\n");
+		ret = -EINVAL;
+		goto error;
+	}
+
+	/* Find the playback DMA channel to use. */
+	machine_data->dai[0].platforms->name = machine_data->platform_name[0];
+	ret = fsl_asoc_get_dma_channel(np, "fsl,playback-dma",
+				       &machine_data->dai[0],
+				       &machine_data->dma_channel_id[0],
+				       &machine_data->dma_id[0]);
+	if (ret) {
+		dev_err(&pdev->dev, "missing/invalid playback DMA phandle\n");
+		goto error;
+	}
+
+	/* Find the capture DMA channel to use. */
+	machine_data->dai[1].platforms->name = machine_data->platform_name[1];
+	ret = fsl_asoc_get_dma_channel(np, "fsl,capture-dma",
+				       &machine_data->dai[1],
+				       &machine_data->dma_channel_id[1],
+				       &machine_data->dma_id[1]);
+	if (ret) {
+		dev_err(&pdev->dev, "missing/invalid capture DMA phandle\n");
+		goto error;
+	}
+
+	/* Initialize our DAI data structure.  */
+	machine_data->dai[0].stream_name = "playback";
+	machine_data->dai[1].stream_name = "capture";
+	machine_data->dai[0].name = machine_data->dai[0].stream_name;
+	machine_data->dai[1].name = machine_data->dai[1].stream_name;
+
+	machine_data->card.probe = mpc8610_hpcd_machine_probe;
+	machine_data->card.remove = mpc8610_hpcd_machine_remove;
+	machine_data->card.name = pdev->name; /* The platform driver name */
+	machine_data->card.owner = THIS_MODULE;
+	machine_data->card.dev = &pdev->dev;
+	machine_data->card.num_links = 2;
+	machine_data->card.dai_link = machine_data->dai;
+
+	/* Register with ASoC */
+	ret = snd_soc_register_card(&machine_data->card);
+	if (ret) {
+		dev_err(&pdev->dev, "could not register card\n");
+		goto error;
+	}
+
+	of_node_put(codec_np);
+
+	return 0;
+
+error:
+	kfree(machine_data);
+error_alloc:
+	of_node_put(codec_np);
+	return ret;
+}
+
+/**
+ * mpc8610_hpcd_remove: remove the platform device
+ *
+ * This function is called when the platform device is removed.
+ */
+static int mpc8610_hpcd_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct mpc8610_hpcd_data *machine_data =
+		container_of(card, struct mpc8610_hpcd_data, card);
+
+	snd_soc_unregister_card(card);
+	kfree(machine_data);
+
+	return 0;
+}
+
+static struct platform_driver mpc8610_hpcd_driver = {
+	.probe = mpc8610_hpcd_probe,
+	.remove = mpc8610_hpcd_remove,
+	.driver = {
+		/* The name must match 'compatible' property in the device tree,
+		 * in lowercase letters.
+		 */
+		.name = "snd-soc-mpc8610hpcd",
+	},
+};
+
+/**
+ * mpc8610_hpcd_init: machine driver initialization.
+ *
+ * This function is called when this module is loaded.
+ */
+static int __init mpc8610_hpcd_init(void)
+{
+	struct device_node *guts_np;
+	struct resource res;
+
+	pr_info("Freescale MPC8610 HPCD ALSA SoC machine driver\n");
+
+	/* Get the physical address of the global utilities registers */
+	guts_np = of_find_compatible_node(NULL, NULL, "fsl,mpc8610-guts");
+	if (of_address_to_resource(guts_np, 0, &res)) {
+		pr_err("mpc8610-hpcd: missing/invalid global utilities node\n");
+		of_node_put(guts_np);
+		return -EINVAL;
+	}
+	guts_phys = res.start;
+	of_node_put(guts_np);
+
+	return platform_driver_register(&mpc8610_hpcd_driver);
+}
+
+/**
+ * mpc8610_hpcd_exit: machine driver exit
+ *
+ * This function is called when this driver is unloaded.
+ */
+static void __exit mpc8610_hpcd_exit(void)
+{
+	platform_driver_unregister(&mpc8610_hpcd_driver);
+}
+
+module_init(mpc8610_hpcd_init);
+module_exit(mpc8610_hpcd_exit);
+
+MODULE_AUTHOR("Timur Tabi <timur@freescale.com>");
+MODULE_DESCRIPTION("Freescale MPC8610 HPCD ALSA SoC machine driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/p1022_ds.c b/sound/soc/fsl/p1022_ds.c
new file mode 100644
index 000000000..b45742931
--- /dev/null
+++ b/sound/soc/fsl/p1022_ds.c
@@ -0,0 +1,461 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale P1022DS ALSA SoC Machine driver
+//
+// Author: Timur Tabi <timur@freescale.com>
+//
+// Copyright 2010 Freescale Semiconductor, Inc.
+
+#include <linux/module.h>
+#include <linux/fsl/guts.h>
+#include <linux/interrupt.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <sound/soc.h>
+
+#include "fsl_dma.h"
+#include "fsl_ssi.h"
+#include "fsl_utils.h"
+
+/* P1022-specific PMUXCR and DMUXCR bit definitions */
+
+#define CCSR_GUTS_PMUXCR_UART0_I2C1_MASK	0x0001c000
+#define CCSR_GUTS_PMUXCR_UART0_I2C1_UART0_SSI	0x00010000
+#define CCSR_GUTS_PMUXCR_UART0_I2C1_SSI		0x00018000
+
+#define CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK	0x00000c00
+#define CCSR_GUTS_PMUXCR_SSI_DMA_TDM_SSI	0x00000000
+
+#define CCSR_GUTS_DMUXCR_PAD	1	/* DMA controller/channel set to pad */
+#define CCSR_GUTS_DMUXCR_SSI	2	/* DMA controller/channel set to SSI */
+
+/*
+ * Set the DMACR register in the GUTS
+ *
+ * The DMACR register determines the source of initiated transfers for each
+ * channel on each DMA controller.  Rather than have a bunch of repetitive
+ * macros for the bit patterns, we just have a function that calculates
+ * them.
+ *
+ * guts: Pointer to GUTS structure
+ * co: The DMA controller (0 or 1)
+ * ch: The channel on the DMA controller (0, 1, 2, or 3)
+ * device: The device to set as the target (CCSR_GUTS_DMUXCR_xxx)
+ */
+static inline void guts_set_dmuxcr(struct ccsr_guts __iomem *guts,
+	unsigned int co, unsigned int ch, unsigned int device)
+{
+	unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch));
+
+	clrsetbits_be32(&guts->dmuxcr, 3 << shift, device << shift);
+}
+
+/* There's only one global utilities register */
+static phys_addr_t guts_phys;
+
+/**
+ * machine_data: machine-specific ASoC device data
+ *
+ * This structure contains data for a single sound platform device on an
+ * P1022 DS.  Some of the data is taken from the device tree.
+ */
+struct machine_data {
+	struct snd_soc_dai_link dai[2];
+	struct snd_soc_card card;
+	unsigned int dai_format;
+	unsigned int codec_clk_direction;
+	unsigned int cpu_clk_direction;
+	unsigned int clk_frequency;
+	unsigned int ssi_id;		/* 0 = SSI1, 1 = SSI2, etc */
+	unsigned int dma_id[2];		/* 0 = DMA1, 1 = DMA2, etc */
+	unsigned int dma_channel_id[2]; /* 0 = ch 0, 1 = ch 1, etc*/
+	char platform_name[2][DAI_NAME_SIZE]; /* One for each DMA channel */
+};
+
+/**
+ * p1022_ds_machine_probe: initialize the board
+ *
+ * This function is used to initialize the board-specific hardware.
+ *
+ * Here we program the DMACR and PMUXCR registers.
+ */
+static int p1022_ds_machine_probe(struct snd_soc_card *card)
+{
+	struct machine_data *mdata =
+		container_of(card, struct machine_data, card);
+	struct ccsr_guts __iomem *guts;
+
+	guts = ioremap(guts_phys, sizeof(struct ccsr_guts));
+	if (!guts) {
+		dev_err(card->dev, "could not map global utilities\n");
+		return -ENOMEM;
+	}
+
+	/* Enable SSI Tx signal */
+	clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK,
+			CCSR_GUTS_PMUXCR_UART0_I2C1_UART0_SSI);
+
+	/* Enable SSI Rx signal */
+	clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK,
+			CCSR_GUTS_PMUXCR_SSI_DMA_TDM_SSI);
+
+	/* Enable DMA Channel for SSI */
+	guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0],
+			CCSR_GUTS_DMUXCR_SSI);
+
+	guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1],
+			CCSR_GUTS_DMUXCR_SSI);
+
+	iounmap(guts);
+
+	return 0;
+}
+
+/**
+ * p1022_ds_startup: program the board with various hardware parameters
+ *
+ * This function takes board-specific information, like clock frequencies
+ * and serial data formats, and passes that information to the codec and
+ * transport drivers.
+ */
+static int p1022_ds_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct machine_data *mdata =
+		container_of(rtd->card, struct machine_data, card);
+	struct device *dev = rtd->card->dev;
+	int ret = 0;
+
+	/* Tell the codec driver what the serial protocol is. */
+	ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0), mdata->dai_format);
+	if (ret < 0) {
+		dev_err(dev, "could not set codec driver audio format\n");
+		return ret;
+	}
+
+	/*
+	 * Tell the codec driver what the MCLK frequency is, and whether it's
+	 * a slave or master.
+	 */
+	ret = snd_soc_dai_set_sysclk(asoc_rtd_to_codec(rtd, 0), 0, mdata->clk_frequency,
+				     mdata->codec_clk_direction);
+	if (ret < 0) {
+		dev_err(dev, "could not set codec driver clock params\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * p1022_ds_machine_remove: Remove the sound device
+ *
+ * This function is called to remove the sound device for one SSI.  We
+ * de-program the DMACR and PMUXCR register.
+ */
+static int p1022_ds_machine_remove(struct snd_soc_card *card)
+{
+	struct machine_data *mdata =
+		container_of(card, struct machine_data, card);
+	struct ccsr_guts __iomem *guts;
+
+	guts = ioremap(guts_phys, sizeof(struct ccsr_guts));
+	if (!guts) {
+		dev_err(card->dev, "could not map global utilities\n");
+		return -ENOMEM;
+	}
+
+	/* Restore the signal routing */
+	clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK);
+	clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK);
+	guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0], 0);
+	guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1], 0);
+
+	iounmap(guts);
+
+	return 0;
+}
+
+/**
+ * p1022_ds_ops: ASoC machine driver operations
+ */
+static const struct snd_soc_ops p1022_ds_ops = {
+	.startup = p1022_ds_startup,
+};
+
+/**
+ * p1022_ds_probe: platform probe function for the machine driver
+ *
+ * Although this is a machine driver, the SSI node is the "master" node with
+ * respect to audio hardware connections.  Therefore, we create a new ASoC
+ * device for each new SSI node that has a codec attached.
+ */
+static int p1022_ds_probe(struct platform_device *pdev)
+{
+	struct device *dev = pdev->dev.parent;
+	/* ssi_pdev is the platform device for the SSI node that probed us */
+	struct platform_device *ssi_pdev = to_platform_device(dev);
+	struct device_node *np = ssi_pdev->dev.of_node;
+	struct device_node *codec_np = NULL;
+	struct machine_data *mdata;
+	struct snd_soc_dai_link_component *comp;
+	int ret;
+	const char *sprop;
+	const u32 *iprop;
+
+	/* Find the codec node for this SSI. */
+	codec_np = of_parse_phandle(np, "codec-handle", 0);
+	if (!codec_np) {
+		dev_err(dev, "could not find codec node\n");
+		return -EINVAL;
+	}
+
+	mdata = kzalloc(sizeof(struct machine_data), GFP_KERNEL);
+	if (!mdata) {
+		ret = -ENOMEM;
+		goto error_put;
+	}
+
+	comp = devm_kzalloc(&pdev->dev, 6 * sizeof(*comp), GFP_KERNEL);
+	if (!comp) {
+		ret = -ENOMEM;
+		goto error_put;
+	}
+
+	mdata->dai[0].cpus	= &comp[0];
+	mdata->dai[0].codecs	= &comp[1];
+	mdata->dai[0].platforms	= &comp[2];
+
+	mdata->dai[0].num_cpus		= 1;
+	mdata->dai[0].num_codecs	= 1;
+	mdata->dai[0].num_platforms	= 1;
+
+	mdata->dai[1].cpus	= &comp[3];
+	mdata->dai[1].codecs	= &comp[4];
+	mdata->dai[1].platforms	= &comp[5];
+
+	mdata->dai[1].num_cpus		= 1;
+	mdata->dai[1].num_codecs	= 1;
+	mdata->dai[1].num_platforms	= 1;
+
+
+	mdata->dai[0].cpus->dai_name = dev_name(&ssi_pdev->dev);
+	mdata->dai[0].ops = &p1022_ds_ops;
+
+	/* ASoC core can match codec with device node */
+	mdata->dai[0].codecs->of_node = codec_np;
+
+	/* We register two DAIs per SSI, one for playback and the other for
+	 * capture.  We support codecs that have separate DAIs for both playback
+	 * and capture.
+	 */
+	memcpy(&mdata->dai[1], &mdata->dai[0], sizeof(struct snd_soc_dai_link));
+
+	/* The DAI names from the codec (snd_soc_dai_driver.name) */
+	mdata->dai[0].codecs->dai_name = "wm8776-hifi-playback";
+	mdata->dai[1].codecs->dai_name = "wm8776-hifi-capture";
+
+	/* Get the device ID */
+	iprop = of_get_property(np, "cell-index", NULL);
+	if (!iprop) {
+		dev_err(&pdev->dev, "cell-index property not found\n");
+		ret = -EINVAL;
+		goto error;
+	}
+	mdata->ssi_id = be32_to_cpup(iprop);
+
+	/* Get the serial format and clock direction. */
+	sprop = of_get_property(np, "fsl,mode", NULL);
+	if (!sprop) {
+		dev_err(&pdev->dev, "fsl,mode property not found\n");
+		ret = -EINVAL;
+		goto error;
+	}
+
+	if (strcasecmp(sprop, "i2s-slave") == 0) {
+		mdata->dai_format = SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBP_CFP;
+		mdata->codec_clk_direction = SND_SOC_CLOCK_OUT;
+		mdata->cpu_clk_direction = SND_SOC_CLOCK_IN;
+
+		/* In i2s-slave mode, the codec has its own clock source, so we
+		 * need to get the frequency from the device tree and pass it to
+		 * the codec driver.
+		 */
+		iprop = of_get_property(codec_np, "clock-frequency", NULL);
+		if (!iprop || !*iprop) {
+			dev_err(&pdev->dev, "codec bus-frequency "
+				"property is missing or invalid\n");
+			ret = -EINVAL;
+			goto error;
+		}
+		mdata->clk_frequency = be32_to_cpup(iprop);
+	} else if (strcasecmp(sprop, "i2s-master") == 0) {
+		mdata->dai_format = SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBC_CFC;
+		mdata->codec_clk_direction = SND_SOC_CLOCK_IN;
+		mdata->cpu_clk_direction = SND_SOC_CLOCK_OUT;
+	} else if (strcasecmp(sprop, "lj-slave") == 0) {
+		mdata->dai_format = SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_CBP_CFP;
+		mdata->codec_clk_direction = SND_SOC_CLOCK_OUT;
+		mdata->cpu_clk_direction = SND_SOC_CLOCK_IN;
+	} else if (strcasecmp(sprop, "lj-master") == 0) {
+		mdata->dai_format = SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_LEFT_J | SND_SOC_DAIFMT_CBC_CFC;
+		mdata->codec_clk_direction = SND_SOC_CLOCK_IN;
+		mdata->cpu_clk_direction = SND_SOC_CLOCK_OUT;
+	} else if (strcasecmp(sprop, "rj-slave") == 0) {
+		mdata->dai_format = SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_CBP_CFP;
+		mdata->codec_clk_direction = SND_SOC_CLOCK_OUT;
+		mdata->cpu_clk_direction = SND_SOC_CLOCK_IN;
+	} else if (strcasecmp(sprop, "rj-master") == 0) {
+		mdata->dai_format = SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_RIGHT_J | SND_SOC_DAIFMT_CBC_CFC;
+		mdata->codec_clk_direction = SND_SOC_CLOCK_IN;
+		mdata->cpu_clk_direction = SND_SOC_CLOCK_OUT;
+	} else if (strcasecmp(sprop, "ac97-slave") == 0) {
+		mdata->dai_format = SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_AC97 | SND_SOC_DAIFMT_CBP_CFP;
+		mdata->codec_clk_direction = SND_SOC_CLOCK_OUT;
+		mdata->cpu_clk_direction = SND_SOC_CLOCK_IN;
+	} else if (strcasecmp(sprop, "ac97-master") == 0) {
+		mdata->dai_format = SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_AC97 | SND_SOC_DAIFMT_CBC_CFC;
+		mdata->codec_clk_direction = SND_SOC_CLOCK_IN;
+		mdata->cpu_clk_direction = SND_SOC_CLOCK_OUT;
+	} else {
+		dev_err(&pdev->dev,
+			"unrecognized fsl,mode property '%s'\n", sprop);
+		ret = -EINVAL;
+		goto error;
+	}
+
+	if (!mdata->clk_frequency) {
+		dev_err(&pdev->dev, "unknown clock frequency\n");
+		ret = -EINVAL;
+		goto error;
+	}
+
+	/* Find the playback DMA channel to use. */
+	mdata->dai[0].platforms->name = mdata->platform_name[0];
+	ret = fsl_asoc_get_dma_channel(np, "fsl,playback-dma", &mdata->dai[0],
+				       &mdata->dma_channel_id[0],
+				       &mdata->dma_id[0]);
+	if (ret) {
+		dev_err(&pdev->dev, "missing/invalid playback DMA phandle\n");
+		goto error;
+	}
+
+	/* Find the capture DMA channel to use. */
+	mdata->dai[1].platforms->name = mdata->platform_name[1];
+	ret = fsl_asoc_get_dma_channel(np, "fsl,capture-dma", &mdata->dai[1],
+				       &mdata->dma_channel_id[1],
+				       &mdata->dma_id[1]);
+	if (ret) {
+		dev_err(&pdev->dev, "missing/invalid capture DMA phandle\n");
+		goto error;
+	}
+
+	/* Initialize our DAI data structure.  */
+	mdata->dai[0].stream_name = "playback";
+	mdata->dai[1].stream_name = "capture";
+	mdata->dai[0].name = mdata->dai[0].stream_name;
+	mdata->dai[1].name = mdata->dai[1].stream_name;
+
+	mdata->card.probe = p1022_ds_machine_probe;
+	mdata->card.remove = p1022_ds_machine_remove;
+	mdata->card.name = pdev->name; /* The platform driver name */
+	mdata->card.owner = THIS_MODULE;
+	mdata->card.dev = &pdev->dev;
+	mdata->card.num_links = 2;
+	mdata->card.dai_link = mdata->dai;
+
+	/* Register with ASoC */
+	ret = snd_soc_register_card(&mdata->card);
+	if (ret) {
+		dev_err(&pdev->dev, "could not register card\n");
+		goto error;
+	}
+
+	of_node_put(codec_np);
+
+	return 0;
+
+error:
+	kfree(mdata);
+error_put:
+	of_node_put(codec_np);
+	return ret;
+}
+
+/**
+ * p1022_ds_remove: remove the platform device
+ *
+ * This function is called when the platform device is removed.
+ */
+static int p1022_ds_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct machine_data *mdata =
+		container_of(card, struct machine_data, card);
+
+	snd_soc_unregister_card(card);
+	kfree(mdata);
+
+	return 0;
+}
+
+static struct platform_driver p1022_ds_driver = {
+	.probe = p1022_ds_probe,
+	.remove = p1022_ds_remove,
+	.driver = {
+		/*
+		 * The name must match 'compatible' property in the device tree,
+		 * in lowercase letters.
+		 */
+		.name = "snd-soc-p1022ds",
+	},
+};
+
+/**
+ * p1022_ds_init: machine driver initialization.
+ *
+ * This function is called when this module is loaded.
+ */
+static int __init p1022_ds_init(void)
+{
+	struct device_node *guts_np;
+	struct resource res;
+
+	/* Get the physical address of the global utilities registers */
+	guts_np = of_find_compatible_node(NULL, NULL, "fsl,p1022-guts");
+	if (of_address_to_resource(guts_np, 0, &res)) {
+		pr_err("snd-soc-p1022ds: missing/invalid global utils node\n");
+		of_node_put(guts_np);
+		return -EINVAL;
+	}
+	guts_phys = res.start;
+	of_node_put(guts_np);
+
+	return platform_driver_register(&p1022_ds_driver);
+}
+
+/**
+ * p1022_ds_exit: machine driver exit
+ *
+ * This function is called when this driver is unloaded.
+ */
+static void __exit p1022_ds_exit(void)
+{
+	platform_driver_unregister(&p1022_ds_driver);
+}
+
+module_init(p1022_ds_init);
+module_exit(p1022_ds_exit);
+
+MODULE_AUTHOR("Timur Tabi <timur@freescale.com>");
+MODULE_DESCRIPTION("Freescale P1022 DS ALSA SoC machine driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/p1022_rdk.c b/sound/soc/fsl/p1022_rdk.c
new file mode 100644
index 000000000..b395adabe
--- /dev/null
+++ b/sound/soc/fsl/p1022_rdk.c
@@ -0,0 +1,410 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Freescale P1022RDK ALSA SoC Machine driver
+//
+// Author: Timur Tabi <timur@freescale.com>
+//
+// Copyright 2012 Freescale Semiconductor, Inc.
+//
+// Note: in order for audio to work correctly, the output controls need
+// to be enabled, because they control the clock.  So for playback, for
+// example:
+//
+//      amixer sset 'Left Output Mixer PCM' on
+//      amixer sset 'Right Output Mixer PCM' on
+
+#include <linux/module.h>
+#include <linux/fsl/guts.h>
+#include <linux/interrupt.h>
+#include <linux/of_address.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <sound/soc.h>
+
+#include "fsl_dma.h"
+#include "fsl_ssi.h"
+#include "fsl_utils.h"
+
+/* P1022-specific PMUXCR and DMUXCR bit definitions */
+
+#define CCSR_GUTS_PMUXCR_UART0_I2C1_MASK	0x0001c000
+#define CCSR_GUTS_PMUXCR_UART0_I2C1_UART0_SSI	0x00010000
+#define CCSR_GUTS_PMUXCR_UART0_I2C1_SSI		0x00018000
+
+#define CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK	0x00000c00
+#define CCSR_GUTS_PMUXCR_SSI_DMA_TDM_SSI	0x00000000
+
+#define CCSR_GUTS_DMUXCR_PAD	1	/* DMA controller/channel set to pad */
+#define CCSR_GUTS_DMUXCR_SSI	2	/* DMA controller/channel set to SSI */
+
+/*
+ * Set the DMACR register in the GUTS
+ *
+ * The DMACR register determines the source of initiated transfers for each
+ * channel on each DMA controller.  Rather than have a bunch of repetitive
+ * macros for the bit patterns, we just have a function that calculates
+ * them.
+ *
+ * guts: Pointer to GUTS structure
+ * co: The DMA controller (0 or 1)
+ * ch: The channel on the DMA controller (0, 1, 2, or 3)
+ * device: The device to set as the target (CCSR_GUTS_DMUXCR_xxx)
+ */
+static inline void guts_set_dmuxcr(struct ccsr_guts __iomem *guts,
+	unsigned int co, unsigned int ch, unsigned int device)
+{
+	unsigned int shift = 16 + (8 * (1 - co) + 2 * (3 - ch));
+
+	clrsetbits_be32(&guts->dmuxcr, 3 << shift, device << shift);
+}
+
+/* There's only one global utilities register */
+static phys_addr_t guts_phys;
+
+/**
+ * machine_data: machine-specific ASoC device data
+ *
+ * This structure contains data for a single sound platform device on an
+ * P1022 RDK.  Some of the data is taken from the device tree.
+ */
+struct machine_data {
+	struct snd_soc_dai_link dai[2];
+	struct snd_soc_card card;
+	unsigned int dai_format;
+	unsigned int codec_clk_direction;
+	unsigned int cpu_clk_direction;
+	unsigned int clk_frequency;
+	unsigned int dma_id[2];		/* 0 = DMA1, 1 = DMA2, etc */
+	unsigned int dma_channel_id[2]; /* 0 = ch 0, 1 = ch 1, etc*/
+	char platform_name[2][DAI_NAME_SIZE]; /* One for each DMA channel */
+};
+
+/**
+ * p1022_rdk_machine_probe: initialize the board
+ *
+ * This function is used to initialize the board-specific hardware.
+ *
+ * Here we program the DMACR and PMUXCR registers.
+ */
+static int p1022_rdk_machine_probe(struct snd_soc_card *card)
+{
+	struct machine_data *mdata =
+		container_of(card, struct machine_data, card);
+	struct ccsr_guts __iomem *guts;
+
+	guts = ioremap(guts_phys, sizeof(struct ccsr_guts));
+	if (!guts) {
+		dev_err(card->dev, "could not map global utilities\n");
+		return -ENOMEM;
+	}
+
+	/* Enable SSI Tx signal */
+	clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK,
+			CCSR_GUTS_PMUXCR_UART0_I2C1_UART0_SSI);
+
+	/* Enable SSI Rx signal */
+	clrsetbits_be32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK,
+			CCSR_GUTS_PMUXCR_SSI_DMA_TDM_SSI);
+
+	/* Enable DMA Channel for SSI */
+	guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0],
+			CCSR_GUTS_DMUXCR_SSI);
+
+	guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1],
+			CCSR_GUTS_DMUXCR_SSI);
+
+	iounmap(guts);
+
+	return 0;
+}
+
+/**
+ * p1022_rdk_startup: program the board with various hardware parameters
+ *
+ * This function takes board-specific information, like clock frequencies
+ * and serial data formats, and passes that information to the codec and
+ * transport drivers.
+ */
+static int p1022_rdk_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct machine_data *mdata =
+		container_of(rtd->card, struct machine_data, card);
+	struct device *dev = rtd->card->dev;
+	int ret = 0;
+
+	/* Tell the codec driver what the serial protocol is. */
+	ret = snd_soc_dai_set_fmt(asoc_rtd_to_codec(rtd, 0), mdata->dai_format);
+	if (ret < 0) {
+		dev_err(dev, "could not set codec driver audio format (ret=%i)\n",
+			ret);
+		return ret;
+	}
+
+	ret = snd_soc_dai_set_pll(asoc_rtd_to_codec(rtd, 0), 0, 0, mdata->clk_frequency,
+		mdata->clk_frequency);
+	if (ret < 0) {
+		dev_err(dev, "could not set codec PLL frequency (ret=%i)\n",
+			ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * p1022_rdk_machine_remove: Remove the sound device
+ *
+ * This function is called to remove the sound device for one SSI.  We
+ * de-program the DMACR and PMUXCR register.
+ */
+static int p1022_rdk_machine_remove(struct snd_soc_card *card)
+{
+	struct machine_data *mdata =
+		container_of(card, struct machine_data, card);
+	struct ccsr_guts __iomem *guts;
+
+	guts = ioremap(guts_phys, sizeof(struct ccsr_guts));
+	if (!guts) {
+		dev_err(card->dev, "could not map global utilities\n");
+		return -ENOMEM;
+	}
+
+	/* Restore the signal routing */
+	clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_UART0_I2C1_MASK);
+	clrbits32(&guts->pmuxcr, CCSR_GUTS_PMUXCR_SSI_DMA_TDM_MASK);
+	guts_set_dmuxcr(guts, mdata->dma_id[0], mdata->dma_channel_id[0], 0);
+	guts_set_dmuxcr(guts, mdata->dma_id[1], mdata->dma_channel_id[1], 0);
+
+	iounmap(guts);
+
+	return 0;
+}
+
+/**
+ * p1022_rdk_ops: ASoC machine driver operations
+ */
+static const struct snd_soc_ops p1022_rdk_ops = {
+	.startup = p1022_rdk_startup,
+};
+
+/**
+ * p1022_rdk_probe: platform probe function for the machine driver
+ *
+ * Although this is a machine driver, the SSI node is the "master" node with
+ * respect to audio hardware connections.  Therefore, we create a new ASoC
+ * device for each new SSI node that has a codec attached.
+ */
+static int p1022_rdk_probe(struct platform_device *pdev)
+{
+	struct device *dev = pdev->dev.parent;
+	/* ssi_pdev is the platform device for the SSI node that probed us */
+	struct platform_device *ssi_pdev = to_platform_device(dev);
+	struct device_node *np = ssi_pdev->dev.of_node;
+	struct device_node *codec_np = NULL;
+	struct machine_data *mdata;
+	struct snd_soc_dai_link_component *comp;
+	const u32 *iprop;
+	int ret;
+
+	/* Find the codec node for this SSI. */
+	codec_np = of_parse_phandle(np, "codec-handle", 0);
+	if (!codec_np) {
+		dev_err(dev, "could not find codec node\n");
+		return -EINVAL;
+	}
+
+	mdata = kzalloc(sizeof(struct machine_data), GFP_KERNEL);
+	if (!mdata) {
+		ret = -ENOMEM;
+		goto error_put;
+	}
+
+	comp = devm_kzalloc(&pdev->dev, 6 * sizeof(*comp), GFP_KERNEL);
+	if (!comp) {
+		ret = -ENOMEM;
+		goto error_put;
+	}
+
+	mdata->dai[0].cpus	= &comp[0];
+	mdata->dai[0].codecs	= &comp[1];
+	mdata->dai[0].platforms	= &comp[2];
+
+	mdata->dai[0].num_cpus		= 1;
+	mdata->dai[0].num_codecs	= 1;
+	mdata->dai[0].num_platforms	= 1;
+
+	mdata->dai[1].cpus	= &comp[3];
+	mdata->dai[1].codecs	= &comp[4];
+	mdata->dai[1].platforms	= &comp[5];
+
+	mdata->dai[1].num_cpus		= 1;
+	mdata->dai[1].num_codecs	= 1;
+	mdata->dai[1].num_platforms	= 1;
+
+	mdata->dai[0].cpus->dai_name = dev_name(&ssi_pdev->dev);
+	mdata->dai[0].ops = &p1022_rdk_ops;
+
+	/* ASoC core can match codec with device node */
+	mdata->dai[0].codecs->of_node = codec_np;
+
+	/*
+	 * We register two DAIs per SSI, one for playback and the other for
+	 * capture.  We support codecs that have separate DAIs for both playback
+	 * and capture.
+	 */
+	memcpy(&mdata->dai[1], &mdata->dai[0], sizeof(struct snd_soc_dai_link));
+
+	/* The DAI names from the codec (snd_soc_dai_driver.name) */
+	mdata->dai[0].codecs->dai_name = "wm8960-hifi";
+	mdata->dai[1].codecs->dai_name = mdata->dai[0].codecs->dai_name;
+
+	/*
+	 * Configure the SSI for I2S slave mode.  Older device trees have
+	 * an fsl,mode property, but we ignore that since there's really
+	 * only one way to configure the SSI.
+	 */
+	mdata->dai_format = SND_SOC_DAIFMT_NB_NF |
+		SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBP_CFP;
+	mdata->codec_clk_direction = SND_SOC_CLOCK_OUT;
+	mdata->cpu_clk_direction = SND_SOC_CLOCK_IN;
+
+	/*
+	 * In i2s-slave mode, the codec has its own clock source, so we
+	 * need to get the frequency from the device tree and pass it to
+	 * the codec driver.
+	 */
+	iprop = of_get_property(codec_np, "clock-frequency", NULL);
+	if (!iprop || !*iprop) {
+		dev_err(&pdev->dev, "codec bus-frequency property is missing or invalid\n");
+		ret = -EINVAL;
+		goto error;
+	}
+	mdata->clk_frequency = be32_to_cpup(iprop);
+
+	if (!mdata->clk_frequency) {
+		dev_err(&pdev->dev, "unknown clock frequency\n");
+		ret = -EINVAL;
+		goto error;
+	}
+
+	/* Find the playback DMA channel to use. */
+	mdata->dai[0].platforms->name = mdata->platform_name[0];
+	ret = fsl_asoc_get_dma_channel(np, "fsl,playback-dma", &mdata->dai[0],
+				       &mdata->dma_channel_id[0],
+				       &mdata->dma_id[0]);
+	if (ret) {
+		dev_err(&pdev->dev, "missing/invalid playback DMA phandle (ret=%i)\n",
+			ret);
+		goto error;
+	}
+
+	/* Find the capture DMA channel to use. */
+	mdata->dai[1].platforms->name = mdata->platform_name[1];
+	ret = fsl_asoc_get_dma_channel(np, "fsl,capture-dma", &mdata->dai[1],
+				       &mdata->dma_channel_id[1],
+				       &mdata->dma_id[1]);
+	if (ret) {
+		dev_err(&pdev->dev, "missing/invalid capture DMA phandle (ret=%i)\n",
+			ret);
+		goto error;
+	}
+
+	/* Initialize our DAI data structure.  */
+	mdata->dai[0].stream_name = "playback";
+	mdata->dai[1].stream_name = "capture";
+	mdata->dai[0].name = mdata->dai[0].stream_name;
+	mdata->dai[1].name = mdata->dai[1].stream_name;
+
+	mdata->card.probe = p1022_rdk_machine_probe;
+	mdata->card.remove = p1022_rdk_machine_remove;
+	mdata->card.name = pdev->name; /* The platform driver name */
+	mdata->card.owner = THIS_MODULE;
+	mdata->card.dev = &pdev->dev;
+	mdata->card.num_links = 2;
+	mdata->card.dai_link = mdata->dai;
+
+	/* Register with ASoC */
+	ret = snd_soc_register_card(&mdata->card);
+	if (ret) {
+		dev_err(&pdev->dev, "could not register card (ret=%i)\n", ret);
+		goto error;
+	}
+
+	return 0;
+
+error:
+	kfree(mdata);
+error_put:
+	of_node_put(codec_np);
+	return ret;
+}
+
+/**
+ * p1022_rdk_remove: remove the platform device
+ *
+ * This function is called when the platform device is removed.
+ */
+static int p1022_rdk_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct machine_data *mdata =
+		container_of(card, struct machine_data, card);
+
+	snd_soc_unregister_card(card);
+	kfree(mdata);
+
+	return 0;
+}
+
+static struct platform_driver p1022_rdk_driver = {
+	.probe = p1022_rdk_probe,
+	.remove = p1022_rdk_remove,
+	.driver = {
+		/*
+		 * The name must match 'compatible' property in the device tree,
+		 * in lowercase letters.
+		 */
+		.name = "snd-soc-p1022rdk",
+	},
+};
+
+/**
+ * p1022_rdk_init: machine driver initialization.
+ *
+ * This function is called when this module is loaded.
+ */
+static int __init p1022_rdk_init(void)
+{
+	struct device_node *guts_np;
+	struct resource res;
+
+	/* Get the physical address of the global utilities registers */
+	guts_np = of_find_compatible_node(NULL, NULL, "fsl,p1022-guts");
+	if (of_address_to_resource(guts_np, 0, &res)) {
+		pr_err("snd-soc-p1022rdk: missing/invalid global utils node\n");
+		of_node_put(guts_np);
+		return -EINVAL;
+	}
+	guts_phys = res.start;
+	of_node_put(guts_np);
+
+	return platform_driver_register(&p1022_rdk_driver);
+}
+
+/**
+ * p1022_rdk_exit: machine driver exit
+ *
+ * This function is called when this driver is unloaded.
+ */
+static void __exit p1022_rdk_exit(void)
+{
+	platform_driver_unregister(&p1022_rdk_driver);
+}
+
+late_initcall(p1022_rdk_init);
+module_exit(p1022_rdk_exit);
+
+MODULE_AUTHOR("Timur Tabi <timur@freescale.com>");
+MODULE_DESCRIPTION("Freescale / iVeia P1022 RDK ALSA SoC machine driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/fsl/pcm030-audio-fabric.c b/sound/soc/fsl/pcm030-audio-fabric.c
new file mode 100644
index 000000000..997c3e66c
--- /dev/null
+++ b/sound/soc/fsl/pcm030-audio-fabric.c
@@ -0,0 +1,143 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Phytec pcm030 driver for the PSC of the Freescale MPC52xx
+// configured as AC97 interface
+//
+// Copyright 2008 Jon Smirl, Digispeaker
+// Author: Jon Smirl <jonsmirl@gmail.com>
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+
+#include <sound/soc.h>
+
+#include "mpc5200_dma.h"
+
+#define DRV_NAME "pcm030-audio-fabric"
+
+struct pcm030_audio_data {
+	struct snd_soc_card *card;
+	struct platform_device *codec_device;
+};
+
+SND_SOC_DAILINK_DEFS(analog,
+	DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.0")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(iec958,
+	DAILINK_COMP_ARRAY(COMP_CPU("mpc5200-psc-ac97.1")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link pcm030_fabric_dai[] = {
+{
+	.name = "AC97.0",
+	.stream_name = "AC97 Analog",
+	SND_SOC_DAILINK_REG(analog),
+},
+{
+	.name = "AC97.1",
+	.stream_name = "AC97 IEC958",
+	SND_SOC_DAILINK_REG(iec958),
+},
+};
+
+static struct snd_soc_card pcm030_card = {
+	.name = "pcm030",
+	.owner = THIS_MODULE,
+	.dai_link = pcm030_fabric_dai,
+	.num_links = ARRAY_SIZE(pcm030_fabric_dai),
+};
+
+static int pcm030_fabric_probe(struct platform_device *op)
+{
+	struct device_node *np = op->dev.of_node;
+	struct device_node *platform_np;
+	struct snd_soc_card *card = &pcm030_card;
+	struct pcm030_audio_data *pdata;
+	struct snd_soc_dai_link *dai_link;
+	int ret;
+	int i;
+
+	if (!of_machine_is_compatible("phytec,pcm030"))
+		return -ENODEV;
+
+	pdata = devm_kzalloc(&op->dev, sizeof(struct pcm030_audio_data),
+			     GFP_KERNEL);
+	if (!pdata)
+		return -ENOMEM;
+
+	card->dev = &op->dev;
+
+	pdata->card = card;
+
+	platform_np = of_parse_phandle(np, "asoc-platform", 0);
+	if (!platform_np) {
+		dev_err(&op->dev, "ac97 not registered\n");
+		return -ENODEV;
+	}
+
+	for_each_card_prelinks(card, i, dai_link)
+		dai_link->platforms->of_node = platform_np;
+
+	ret = request_module("snd-soc-wm9712");
+	if (ret)
+		dev_err(&op->dev, "request_module returned: %d\n", ret);
+
+	pdata->codec_device = platform_device_alloc("wm9712-codec", -1);
+	if (!pdata->codec_device)
+		dev_err(&op->dev, "platform_device_alloc() failed\n");
+
+	ret = platform_device_add(pdata->codec_device);
+	if (ret) {
+		dev_err(&op->dev, "platform_device_add() failed: %d\n", ret);
+		platform_device_put(pdata->codec_device);
+	}
+
+	ret = snd_soc_register_card(card);
+	if (ret) {
+		dev_err(&op->dev, "snd_soc_register_card() failed: %d\n", ret);
+		platform_device_unregister(pdata->codec_device);
+	}
+
+	platform_set_drvdata(op, pdata);
+	return ret;
+
+}
+
+static int pcm030_fabric_remove(struct platform_device *op)
+{
+	struct pcm030_audio_data *pdata = platform_get_drvdata(op);
+
+	snd_soc_unregister_card(pdata->card);
+	platform_device_unregister(pdata->codec_device);
+
+	return 0;
+}
+
+static const struct of_device_id pcm030_audio_match[] = {
+	{ .compatible = "phytec,pcm030-audio-fabric", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, pcm030_audio_match);
+
+static struct platform_driver pcm030_fabric_driver = {
+	.probe		= pcm030_fabric_probe,
+	.remove		= pcm030_fabric_remove,
+	.driver		= {
+		.name	= DRV_NAME,
+		.of_match_table    = pcm030_audio_match,
+	},
+};
+
+module_platform_driver(pcm030_fabric_driver);
+
+
+MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
+MODULE_DESCRIPTION(DRV_NAME ": mpc5200 pcm030 fabric driver");
+MODULE_LICENSE("GPL");
+