Adding upstream version 6.1.76.upstream/6.1.76upstream

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

21 files changed, 9467 insertions, 0 deletions

diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig
new file mode 100644
index 000000000..5d59e00be
--- /dev/null
+++ b/sound/soc/atmel/Kconfig
@@ -0,0 +1,179 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config SND_ATMEL_SOC
+	tristate "SoC Audio for the Atmel System-on-Chip"
+	depends on HAS_IOMEM
+	help
+	  Say Y or M if you want to add support for codecs attached to
+	  the ATMEL SSC interface. You will also need
+	  to select the audio interfaces to support below.
+
+if SND_ATMEL_SOC
+
+config SND_ATMEL_SOC_PDC
+	bool
+
+config SND_ATMEL_SOC_DMA
+	bool
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+
+config SND_ATMEL_SOC_SSC
+	tristate
+	select SND_ATMEL_SOC_DMA
+	select SND_ATMEL_SOC_PDC
+
+config SND_ATMEL_SOC_SSC_PDC
+	tristate "SoC PCM DAI support for AT91 SSC controller using PDC"
+	depends on ATMEL_SSC
+	select SND_ATMEL_SOC_PDC
+	select SND_ATMEL_SOC_SSC
+	help
+	  Say Y or M if you want to add support for Atmel SSC interface
+	  in PDC mode configured using audio-graph-card in device-tree.
+
+config SND_ATMEL_SOC_SSC_DMA
+	tristate "SoC PCM DAI support for AT91 SSC controller using DMA"
+	depends on ATMEL_SSC
+	select SND_ATMEL_SOC_DMA
+	select SND_ATMEL_SOC_SSC
+	help
+	  Say Y or M if you want to add support for Atmel SSC interface
+	  in DMA mode configured using audio-graph-card in device-tree.
+
+config SND_AT91_SOC_SAM9G20_WM8731
+	tristate "SoC Audio support for WM8731-based At91sam9g20 evaluation board"
+	depends on ARCH_AT91 || COMPILE_TEST
+	depends on ATMEL_SSC && I2C
+	select SND_ATMEL_SOC_SSC_PDC
+	select SND_SOC_WM8731_I2C
+	help
+	  Say Y if you want to add support for SoC audio on WM8731-based
+	  AT91sam9g20 evaluation board.
+
+config SND_ATMEL_SOC_WM8904
+	tristate "Atmel ASoC driver for boards using WM8904 codec"
+	depends on ARCH_AT91 || COMPILE_TEST
+	depends on ATMEL_SSC && I2C
+	select SND_ATMEL_SOC_SSC_DMA
+	select SND_SOC_WM8904
+	help
+	  Say Y if you want to add support for Atmel ASoC driver for boards using
+	  WM8904 codec.
+
+config SND_AT91_SOC_SAM9X5_WM8731
+	tristate "SoC Audio support for WM8731-based at91sam9x5 board"
+	depends on ARCH_AT91 || COMPILE_TEST
+	depends on ATMEL_SSC && SND_SOC_I2C_AND_SPI
+	select SND_ATMEL_SOC_SSC_DMA
+	select SND_SOC_WM8731
+	help
+	  Say Y if you want to add support for audio SoC on an
+	  at91sam9x5 based board that is using WM8731 codec.
+
+config SND_ATMEL_SOC_CLASSD
+	tristate "Atmel ASoC driver for boards using CLASSD"
+	depends on ARCH_AT91 || COMPILE_TEST
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	select REGMAP_MMIO
+	help
+	  Say Y if you want to add support for Atmel ASoC driver for boards using
+	  CLASSD.
+
+config SND_ATMEL_SOC_PDMIC
+	tristate "Atmel ASoC driver for boards using PDMIC"
+	depends on OF && (ARCH_AT91 || COMPILE_TEST)
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	select REGMAP_MMIO
+	help
+	  Say Y if you want to add support for Atmel ASoC driver for boards using
+	  PDMIC.
+
+config SND_ATMEL_SOC_TSE850_PCM5142
+	tristate "ASoC driver for the Axentia TSE-850"
+	depends on ARCH_AT91 && OF
+	depends on ATMEL_SSC && I2C
+	select SND_ATMEL_SOC_SSC_DMA
+	select SND_SOC_PCM512x_I2C
+	help
+	  Say Y if you want to add support for the ASoC driver for the
+	  Axentia TSE-850 with a PCM5142 codec.
+
+config SND_ATMEL_SOC_I2S
+	tristate "Atmel ASoC driver for boards using I2S"
+	depends on OF && (ARCH_AT91 || COMPILE_TEST)
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	select REGMAP_MMIO
+	help
+	  Say Y or M if you want to add support for Atmel ASoc driver for boards
+	  using I2S.
+
+config SND_SOC_MIKROE_PROTO
+	tristate "Support for Mikroe-PROTO board"
+	depends on OF
+	depends on SND_SOC_I2C_AND_SPI
+	select SND_SOC_WM8731
+	help
+	  Say Y or M if you want to add support for MikroElektronika PROTO Audio
+	  Board. This board contains the WM8731 codec, which can be configured
+	  using I2C over SDA (MPU Data Input) and SCL (MPU Clock Input) pins.
+	  Both playback and capture are supported.
+
+config SND_MCHP_SOC_I2S_MCC
+	tristate "Microchip ASoC driver for boards using I2S MCC"
+	depends on OF && (ARCH_AT91 || COMPILE_TEST)
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	select REGMAP_MMIO
+	help
+	  Say Y or M if you want to add support for I2S Multi-Channel ASoC
+	  driver on the following Microchip platforms:
+	  - sam9x60
+	  - sama7g5
+
+	  The I2SMCC complies with the Inter-IC Sound (I2S) bus specification
+	  and supports a Time Division Multiplexed (TDM) interface with
+	  external multi-channel audio codecs.
+	  Starting with sama7g5, I2S and Left-Justified multi-channel is
+	  supported by using multiple data pins, output and input, without TDM.
+
+config SND_MCHP_SOC_SPDIFTX
+	tristate "Microchip ASoC driver for boards using S/PDIF TX"
+	depends on OF && (ARCH_AT91 || COMPILE_TEST)
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	select REGMAP_MMIO
+	help
+	  Say Y or M if you want to add support for Microchip S/PDIF TX ASoc
+	  driver on the following Microchip platforms:
+	  - sama7g5
+
+	  This S/PDIF TX driver is compliant with IEC-60958 standard and
+	  includes programmable User Data and Channel Status fields.
+
+config SND_MCHP_SOC_SPDIFRX
+	tristate "Microchip ASoC driver for boards using S/PDIF RX"
+	depends on OF && (ARCH_AT91 || COMPILE_TEST)
+	depends on COMMON_CLK
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	select REGMAP_MMIO
+	help
+	  Say Y or M if you want to add support for Microchip S/PDIF RX ASoc
+	  driver on the following Microchip platforms:
+	  - sama7g5
+
+	  This S/PDIF RX driver is compliant with IEC-60958 standard and
+	  includes programmable User Data and Channel Status fields.
+
+config SND_MCHP_SOC_PDMC
+	tristate "Microchip ASoC driver for boards using PDMC"
+	depends on OF && (ARCH_AT91 || COMPILE_TEST)
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	select REGMAP_MMIO
+	help
+	  Say Y or M if you want to add support for Microchip ASoC PDMC driver on the
+	  following Microchip platforms:
+	  - sama7g5
+
+	  The Pulse Density Microphone Controller (PDMC) interfaces up to 4 digital
+	  microphones PDM outputs. It generates a single clock line and samples 1 or
+	  2 data lines. The signal path includes an audio grade programmable
+	  decimation filter and outputs 24-bit audio words.
+
+endif
diff --git a/sound/soc/atmel/Makefile b/sound/soc/atmel/Makefile
new file mode 100644
index 000000000..043097a08
--- /dev/null
+++ b/sound/soc/atmel/Makefile
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: GPL-2.0
+# AT91 Platform Support
+snd-soc-atmel-pcm-pdc-objs := atmel-pcm-pdc.o
+snd-soc-atmel-pcm-dma-objs := atmel-pcm-dma.o
+snd-soc-atmel_ssc_dai-objs := atmel_ssc_dai.o
+snd-soc-atmel-i2s-objs := atmel-i2s.o
+snd-soc-mchp-i2s-mcc-objs := mchp-i2s-mcc.o
+snd-soc-mchp-spdiftx-objs := mchp-spdiftx.o
+snd-soc-mchp-spdifrx-objs := mchp-spdifrx.o
+snd-soc-mchp-pdmc-objs := mchp-pdmc.o
+
+# pdc and dma need to both be built-in if any user of
+# ssc is built-in.
+ifdef CONFIG_SND_ATMEL_SOC_PDC
+obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel-pcm-pdc.o
+endif
+ifdef CONFIG_SND_ATMEL_SOC_DMA
+obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel-pcm-dma.o
+endif
+obj-$(CONFIG_SND_ATMEL_SOC_SSC) += snd-soc-atmel_ssc_dai.o
+obj-$(CONFIG_SND_ATMEL_SOC_I2S) += snd-soc-atmel-i2s.o
+obj-$(CONFIG_SND_MCHP_SOC_I2S_MCC) += snd-soc-mchp-i2s-mcc.o
+obj-$(CONFIG_SND_MCHP_SOC_SPDIFTX) += snd-soc-mchp-spdiftx.o
+obj-$(CONFIG_SND_MCHP_SOC_SPDIFRX) += snd-soc-mchp-spdifrx.o
+obj-$(CONFIG_SND_MCHP_SOC_PDMC) += snd-soc-mchp-pdmc.o
+
+# AT91 Machine Support
+snd-soc-sam9g20-wm8731-objs := sam9g20_wm8731.o
+snd-atmel-soc-wm8904-objs := atmel_wm8904.o
+snd-soc-sam9x5-wm8731-objs := sam9x5_wm8731.o
+snd-atmel-soc-classd-objs := atmel-classd.o
+snd-atmel-soc-pdmic-objs := atmel-pdmic.o
+snd-atmel-soc-tse850-pcm5142-objs := tse850-pcm5142.o
+snd-soc-mikroe-proto-objs := mikroe-proto.o
+
+obj-$(CONFIG_SND_AT91_SOC_SAM9G20_WM8731) += snd-soc-sam9g20-wm8731.o
+obj-$(CONFIG_SND_ATMEL_SOC_WM8904) += snd-atmel-soc-wm8904.o
+obj-$(CONFIG_SND_AT91_SOC_SAM9X5_WM8731) += snd-soc-sam9x5-wm8731.o
+obj-$(CONFIG_SND_ATMEL_SOC_CLASSD) += snd-atmel-soc-classd.o
+obj-$(CONFIG_SND_ATMEL_SOC_PDMIC) += snd-atmel-soc-pdmic.o
+obj-$(CONFIG_SND_ATMEL_SOC_TSE850_PCM5142) += snd-atmel-soc-tse850-pcm5142.o
+obj-$(CONFIG_SND_SOC_MIKROE_PROTO) += snd-soc-mikroe-proto.o
diff --git a/sound/soc/atmel/atmel-classd.c b/sound/soc/atmel/atmel-classd.c
new file mode 100644
index 000000000..87d6d6ed0
--- /dev/null
+++ b/sound/soc/atmel/atmel-classd.c
@@ -0,0 +1,637 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Atmel ALSA SoC Audio Class D Amplifier (CLASSD) driver
+ *
+ * Copyright (C) 2015 Atmel
+ *
+ * Author: Songjun Wu <songjun.wu@atmel.com>
+ */
+
+#include <linux/of.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+#include "atmel-classd.h"
+
+struct atmel_classd_pdata {
+	bool non_overlap_enable;
+	int non_overlap_time;
+	int pwm_type;
+	const char *card_name;
+};
+
+struct atmel_classd {
+	dma_addr_t phy_base;
+	struct regmap *regmap;
+	struct clk *pclk;
+	struct clk *gclk;
+	struct device *dev;
+	int irq;
+	const struct atmel_classd_pdata *pdata;
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id atmel_classd_of_match[] = {
+	{
+		.compatible = "atmel,sama5d2-classd",
+	}, {
+		/* sentinel */
+	}
+};
+MODULE_DEVICE_TABLE(of, atmel_classd_of_match);
+
+static struct atmel_classd_pdata *atmel_classd_dt_init(struct device *dev)
+{
+	struct device_node *np = dev->of_node;
+	struct atmel_classd_pdata *pdata;
+	const char *pwm_type_s;
+	int ret;
+
+	if (!np) {
+		dev_err(dev, "device node not found\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
+
+	ret = of_property_read_string(np, "atmel,pwm-type", &pwm_type_s);
+	if ((ret == 0) && (strcmp(pwm_type_s, "diff") == 0))
+		pdata->pwm_type = CLASSD_MR_PWMTYP_DIFF;
+	else
+		pdata->pwm_type = CLASSD_MR_PWMTYP_SINGLE;
+
+	ret = of_property_read_u32(np,
+			"atmel,non-overlap-time", &pdata->non_overlap_time);
+	if (ret)
+		pdata->non_overlap_enable = false;
+	else
+		pdata->non_overlap_enable = true;
+
+	ret = of_property_read_string(np, "atmel,model", &pdata->card_name);
+	if (ret)
+		pdata->card_name = "CLASSD";
+
+	return pdata;
+}
+#else
+static inline struct atmel_classd_pdata *
+atmel_classd_dt_init(struct device *dev)
+{
+	return ERR_PTR(-EINVAL);
+}
+#endif
+
+#define ATMEL_CLASSD_RATES (SNDRV_PCM_RATE_8000 \
+			| SNDRV_PCM_RATE_16000	| SNDRV_PCM_RATE_22050 \
+			| SNDRV_PCM_RATE_32000	| SNDRV_PCM_RATE_44100 \
+			| SNDRV_PCM_RATE_48000	| SNDRV_PCM_RATE_88200 \
+			| SNDRV_PCM_RATE_96000)
+
+static const struct snd_pcm_hardware atmel_classd_hw = {
+	.info			= SNDRV_PCM_INFO_MMAP
+				| SNDRV_PCM_INFO_MMAP_VALID
+				| SNDRV_PCM_INFO_INTERLEAVED
+				| SNDRV_PCM_INFO_RESUME
+				| SNDRV_PCM_INFO_PAUSE,
+	.formats		= (SNDRV_PCM_FMTBIT_S16_LE),
+	.rates			= ATMEL_CLASSD_RATES,
+	.rate_min		= 8000,
+	.rate_max		= 96000,
+	.channels_min		= 1,
+	.channels_max		= 2,
+	.buffer_bytes_max	= 64 * 1024,
+	.period_bytes_min	= 256,
+	.period_bytes_max	= 32 * 1024,
+	.periods_min		= 2,
+	.periods_max		= 256,
+};
+
+#define ATMEL_CLASSD_PREALLOC_BUF_SIZE  (64 * 1024)
+
+/* cpu dai component */
+static int atmel_classd_cpu_dai_startup(struct snd_pcm_substream *substream,
+					struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
+	int err;
+
+	regmap_write(dd->regmap, CLASSD_THR, 0x0);
+
+	err = clk_prepare_enable(dd->pclk);
+	if (err)
+		return err;
+	err = clk_prepare_enable(dd->gclk);
+	if (err) {
+		clk_disable_unprepare(dd->pclk);
+		return err;
+	}
+	return 0;
+}
+
+/* platform */
+static int
+atmel_classd_platform_configure_dma(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params,
+	struct dma_slave_config *slave_config)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
+
+	if (params_physical_width(params) != 16) {
+		dev_err(dd->dev,
+			"only supports 16-bit audio data\n");
+		return -EINVAL;
+	}
+
+	if (params_channels(params) == 1)
+		slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES;
+	else
+		slave_config->dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+
+	slave_config->direction		= DMA_MEM_TO_DEV;
+	slave_config->dst_addr		= dd->phy_base + CLASSD_THR;
+	slave_config->dst_maxburst	= 1;
+	slave_config->src_maxburst	= 1;
+	slave_config->device_fc		= false;
+
+	return 0;
+}
+
+static const struct snd_dmaengine_pcm_config
+atmel_classd_dmaengine_pcm_config = {
+	.prepare_slave_config	= atmel_classd_platform_configure_dma,
+	.pcm_hardware		= &atmel_classd_hw,
+	.prealloc_buffer_size	= ATMEL_CLASSD_PREALLOC_BUF_SIZE,
+};
+
+/* codec */
+static const char * const mono_mode_text[] = {
+	"mix", "sat", "left", "right"
+};
+
+static SOC_ENUM_SINGLE_DECL(classd_mono_mode_enum,
+			CLASSD_INTPMR, CLASSD_INTPMR_MONO_MODE_SHIFT,
+			mono_mode_text);
+
+static const char * const eqcfg_text[] = {
+	"Treble-12dB", "Treble-6dB",
+	"Medium-8dB", "Medium-3dB",
+	"Bass-12dB", "Bass-6dB",
+	"0 dB",
+	"Bass+6dB", "Bass+12dB",
+	"Medium+3dB", "Medium+8dB",
+	"Treble+6dB", "Treble+12dB",
+};
+
+static const unsigned int eqcfg_value[] = {
+	CLASSD_INTPMR_EQCFG_T_CUT_12, CLASSD_INTPMR_EQCFG_T_CUT_6,
+	CLASSD_INTPMR_EQCFG_M_CUT_8, CLASSD_INTPMR_EQCFG_M_CUT_3,
+	CLASSD_INTPMR_EQCFG_B_CUT_12, CLASSD_INTPMR_EQCFG_B_CUT_6,
+	CLASSD_INTPMR_EQCFG_FLAT,
+	CLASSD_INTPMR_EQCFG_B_BOOST_6, CLASSD_INTPMR_EQCFG_B_BOOST_12,
+	CLASSD_INTPMR_EQCFG_M_BOOST_3, CLASSD_INTPMR_EQCFG_M_BOOST_8,
+	CLASSD_INTPMR_EQCFG_T_BOOST_6, CLASSD_INTPMR_EQCFG_T_BOOST_12,
+};
+
+static SOC_VALUE_ENUM_SINGLE_DECL(classd_eqcfg_enum,
+		CLASSD_INTPMR, CLASSD_INTPMR_EQCFG_SHIFT, 0xf,
+		eqcfg_text, eqcfg_value);
+
+static const DECLARE_TLV_DB_SCALE(classd_digital_tlv, -7800, 100, 1);
+
+static const struct snd_kcontrol_new atmel_classd_snd_controls[] = {
+SOC_DOUBLE_TLV("Playback Volume", CLASSD_INTPMR,
+		CLASSD_INTPMR_ATTL_SHIFT, CLASSD_INTPMR_ATTR_SHIFT,
+		78, 1, classd_digital_tlv),
+
+SOC_SINGLE("Deemphasis Switch", CLASSD_INTPMR,
+		CLASSD_INTPMR_DEEMP_SHIFT, 1, 0),
+
+SOC_SINGLE("Mono Switch", CLASSD_INTPMR, CLASSD_INTPMR_MONO_SHIFT, 1, 0),
+
+SOC_SINGLE("Swap Switch", CLASSD_INTPMR, CLASSD_INTPMR_SWAP_SHIFT, 1, 0),
+
+SOC_ENUM("Mono Mode", classd_mono_mode_enum),
+
+SOC_ENUM("EQ", classd_eqcfg_enum),
+};
+
+static const char * const pwm_type[] = {
+	"Single ended", "Differential"
+};
+
+static int atmel_classd_component_probe(struct snd_soc_component *component)
+{
+	struct snd_soc_card *card = snd_soc_component_get_drvdata(component);
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(card);
+	const struct atmel_classd_pdata *pdata = dd->pdata;
+	u32 mask, val;
+
+	mask = CLASSD_MR_PWMTYP_MASK;
+	val = pdata->pwm_type << CLASSD_MR_PWMTYP_SHIFT;
+
+	mask |= CLASSD_MR_NON_OVERLAP_MASK;
+	if (pdata->non_overlap_enable) {
+		val |= (CLASSD_MR_NON_OVERLAP_EN
+			<< CLASSD_MR_NON_OVERLAP_SHIFT);
+
+		mask |= CLASSD_MR_NOVR_VAL_MASK;
+		switch (pdata->non_overlap_time) {
+		case 5:
+			val |= (CLASSD_MR_NOVR_VAL_5NS
+				<< CLASSD_MR_NOVR_VAL_SHIFT);
+			break;
+		case 10:
+			val |= (CLASSD_MR_NOVR_VAL_10NS
+				<< CLASSD_MR_NOVR_VAL_SHIFT);
+			break;
+		case 15:
+			val |= (CLASSD_MR_NOVR_VAL_15NS
+				<< CLASSD_MR_NOVR_VAL_SHIFT);
+			break;
+		case 20:
+			val |= (CLASSD_MR_NOVR_VAL_20NS
+				<< CLASSD_MR_NOVR_VAL_SHIFT);
+			break;
+		default:
+			val |= (CLASSD_MR_NOVR_VAL_10NS
+				<< CLASSD_MR_NOVR_VAL_SHIFT);
+			dev_warn(component->dev,
+				"non-overlapping value %d is invalid, the default value 10 is specified\n",
+				pdata->non_overlap_time);
+			break;
+		}
+	}
+
+	snd_soc_component_update_bits(component, CLASSD_MR, mask, val);
+
+	dev_info(component->dev,
+		"PWM modulation type is %s, non-overlapping is %s\n",
+		pwm_type[pdata->pwm_type],
+		pdata->non_overlap_enable?"enabled":"disabled");
+
+	return 0;
+}
+
+static int atmel_classd_component_resume(struct snd_soc_component *component)
+{
+	struct snd_soc_card *card = snd_soc_component_get_drvdata(component);
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(card);
+
+	return regcache_sync(dd->regmap);
+}
+
+static int atmel_classd_cpu_dai_mute_stream(struct snd_soc_dai *cpu_dai,
+					    int mute, int direction)
+{
+	struct snd_soc_component *component = cpu_dai->component;
+	u32 mask, val;
+
+	mask = CLASSD_MR_LMUTE_MASK | CLASSD_MR_RMUTE_MASK;
+
+	if (mute)
+		val = mask;
+	else
+		val = 0;
+
+	snd_soc_component_update_bits(component, CLASSD_MR, mask, val);
+
+	return 0;
+}
+
+#define CLASSD_GCLK_RATE_11M2896_MPY_8 (112896 * 100 * 8)
+#define CLASSD_GCLK_RATE_12M288_MPY_8  (12288 * 1000 * 8)
+
+static struct {
+	int rate;
+	int sample_rate;
+	int dsp_clk;
+	unsigned long gclk_rate;
+} const sample_rates[] = {
+	{ 8000,  CLASSD_INTPMR_FRAME_8K,
+	CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
+	{ 16000, CLASSD_INTPMR_FRAME_16K,
+	CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
+	{ 32000, CLASSD_INTPMR_FRAME_32K,
+	CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
+	{ 48000, CLASSD_INTPMR_FRAME_48K,
+	CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
+	{ 96000, CLASSD_INTPMR_FRAME_96K,
+	CLASSD_INTPMR_DSP_CLK_FREQ_12M288, CLASSD_GCLK_RATE_12M288_MPY_8 },
+	{ 22050, CLASSD_INTPMR_FRAME_22K,
+	CLASSD_INTPMR_DSP_CLK_FREQ_11M2896, CLASSD_GCLK_RATE_11M2896_MPY_8 },
+	{ 44100, CLASSD_INTPMR_FRAME_44K,
+	CLASSD_INTPMR_DSP_CLK_FREQ_11M2896, CLASSD_GCLK_RATE_11M2896_MPY_8 },
+	{ 88200, CLASSD_INTPMR_FRAME_88K,
+	CLASSD_INTPMR_DSP_CLK_FREQ_11M2896, CLASSD_GCLK_RATE_11M2896_MPY_8 },
+};
+
+static int
+atmel_classd_cpu_dai_hw_params(struct snd_pcm_substream *substream,
+			       struct snd_pcm_hw_params *params,
+			       struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_component *component = cpu_dai->component;
+	int fs;
+	int i, best, best_val, cur_val, ret;
+	u32 mask, val;
+
+	fs = params_rate(params);
+
+	best = 0;
+	best_val = abs(fs - sample_rates[0].rate);
+	for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
+		/* Closest match */
+		cur_val = abs(fs - sample_rates[i].rate);
+		if (cur_val < best_val) {
+			best = i;
+			best_val = cur_val;
+		}
+	}
+
+	dev_dbg(component->dev,
+		"Selected SAMPLE_RATE of %dHz, GCLK_RATE of %ldHz\n",
+		sample_rates[best].rate, sample_rates[best].gclk_rate);
+
+	clk_disable_unprepare(dd->gclk);
+
+	ret = clk_set_rate(dd->gclk, sample_rates[best].gclk_rate);
+	if (ret)
+		return ret;
+
+	mask = CLASSD_INTPMR_DSP_CLK_FREQ_MASK | CLASSD_INTPMR_FRAME_MASK;
+	val = (sample_rates[best].dsp_clk << CLASSD_INTPMR_DSP_CLK_FREQ_SHIFT)
+	| (sample_rates[best].sample_rate << CLASSD_INTPMR_FRAME_SHIFT);
+
+	snd_soc_component_update_bits(component, CLASSD_INTPMR, mask, val);
+
+	return clk_prepare_enable(dd->gclk);
+}
+
+static void
+atmel_classd_cpu_dai_shutdown(struct snd_pcm_substream *substream,
+			      struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(rtd->card);
+
+	clk_disable_unprepare(dd->gclk);
+}
+
+static int atmel_classd_cpu_dai_prepare(struct snd_pcm_substream *substream,
+					struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_component *component = cpu_dai->component;
+
+	snd_soc_component_update_bits(component, CLASSD_MR,
+				CLASSD_MR_LEN_MASK | CLASSD_MR_REN_MASK,
+				(CLASSD_MR_LEN_DIS << CLASSD_MR_LEN_SHIFT)
+				|(CLASSD_MR_REN_DIS << CLASSD_MR_REN_SHIFT));
+
+	return 0;
+}
+
+static int atmel_classd_cpu_dai_trigger(struct snd_pcm_substream *substream,
+					int cmd, struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_component *component = cpu_dai->component;
+	u32 mask, val;
+
+	mask = CLASSD_MR_LEN_MASK | CLASSD_MR_REN_MASK;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		val = mask;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		val = (CLASSD_MR_LEN_DIS << CLASSD_MR_LEN_SHIFT)
+			| (CLASSD_MR_REN_DIS << CLASSD_MR_REN_SHIFT);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	snd_soc_component_update_bits(component, CLASSD_MR, mask, val);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops atmel_classd_cpu_dai_ops = {
+	.startup        = atmel_classd_cpu_dai_startup,
+	.shutdown       = atmel_classd_cpu_dai_shutdown,
+	.mute_stream	= atmel_classd_cpu_dai_mute_stream,
+	.hw_params	= atmel_classd_cpu_dai_hw_params,
+	.prepare	= atmel_classd_cpu_dai_prepare,
+	.trigger	= atmel_classd_cpu_dai_trigger,
+	.no_capture_mute = 1,
+};
+
+static struct snd_soc_dai_driver atmel_classd_cpu_dai = {
+	.playback = {
+		.stream_name	= "Playback",
+		.channels_min	= 1,
+		.channels_max	= 2,
+		.rates		= ATMEL_CLASSD_RATES,
+		.formats	= SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.ops = &atmel_classd_cpu_dai_ops,
+};
+
+static const struct snd_soc_component_driver atmel_classd_cpu_dai_component = {
+	.name			= "atmel-classd",
+	.probe			= atmel_classd_component_probe,
+	.resume			= atmel_classd_component_resume,
+	.controls		= atmel_classd_snd_controls,
+	.num_controls		= ARRAY_SIZE(atmel_classd_snd_controls),
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.legacy_dai_naming	= 1,
+};
+
+/* ASoC sound card */
+static int atmel_classd_asoc_card_init(struct device *dev,
+					struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *dai_link;
+	struct atmel_classd *dd = snd_soc_card_get_drvdata(card);
+	struct snd_soc_dai_link_component *comp;
+
+	dai_link = devm_kzalloc(dev, sizeof(*dai_link), GFP_KERNEL);
+	if (!dai_link)
+		return -ENOMEM;
+
+	comp = devm_kzalloc(dev, 3 * sizeof(*comp), GFP_KERNEL);
+	if (!comp)
+		return -ENOMEM;
+
+	dai_link->cpus		= &comp[0];
+	dai_link->codecs	= &comp[1];
+	dai_link->platforms	= &comp[2];
+
+	dai_link->num_cpus	= 1;
+	dai_link->num_codecs	= 1;
+	dai_link->num_platforms	= 1;
+
+	dai_link->name			= "CLASSD";
+	dai_link->stream_name		= "CLASSD PCM";
+	dai_link->codecs->dai_name	= "snd-soc-dummy-dai";
+	dai_link->cpus->dai_name	= dev_name(dev);
+	dai_link->codecs->name		= "snd-soc-dummy";
+	dai_link->platforms->name	= dev_name(dev);
+
+	card->dai_link	= dai_link;
+	card->num_links	= 1;
+	card->name	= dd->pdata->card_name;
+	card->dev	= dev;
+
+	return 0;
+};
+
+/* regmap configuration */
+static const struct reg_default atmel_classd_reg_defaults[] = {
+	{ CLASSD_INTPMR,   0x00301212 },
+};
+
+#define ATMEL_CLASSD_REG_MAX    0xE4
+static const struct regmap_config atmel_classd_regmap_config = {
+	.reg_bits	= 32,
+	.reg_stride	= 4,
+	.val_bits	= 32,
+	.max_register	= ATMEL_CLASSD_REG_MAX,
+
+	.cache_type		= REGCACHE_FLAT,
+	.reg_defaults		= atmel_classd_reg_defaults,
+	.num_reg_defaults	= ARRAY_SIZE(atmel_classd_reg_defaults),
+};
+
+static int atmel_classd_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct atmel_classd *dd;
+	struct resource *res;
+	void __iomem *io_base;
+	const struct atmel_classd_pdata *pdata;
+	struct snd_soc_card *card;
+	int ret;
+
+	pdata = dev_get_platdata(dev);
+	if (!pdata) {
+		pdata = atmel_classd_dt_init(dev);
+		if (IS_ERR(pdata))
+			return PTR_ERR(pdata);
+	}
+
+	dd = devm_kzalloc(dev, sizeof(*dd), GFP_KERNEL);
+	if (!dd)
+		return -ENOMEM;
+
+	dd->pdata = pdata;
+
+	dd->irq = platform_get_irq(pdev, 0);
+	if (dd->irq < 0)
+		return dd->irq;
+
+	dd->pclk = devm_clk_get(dev, "pclk");
+	if (IS_ERR(dd->pclk)) {
+		ret = PTR_ERR(dd->pclk);
+		dev_err(dev, "failed to get peripheral clock: %d\n", ret);
+		return ret;
+	}
+
+	dd->gclk = devm_clk_get(dev, "gclk");
+	if (IS_ERR(dd->gclk)) {
+		ret = PTR_ERR(dd->gclk);
+		dev_err(dev, "failed to get GCK clock: %d\n", ret);
+		return ret;
+	}
+
+	io_base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(io_base))
+		return PTR_ERR(io_base);
+
+	dd->phy_base = res->start;
+	dd->dev = dev;
+
+	dd->regmap = devm_regmap_init_mmio(dev, io_base,
+					&atmel_classd_regmap_config);
+	if (IS_ERR(dd->regmap)) {
+		ret = PTR_ERR(dd->regmap);
+		dev_err(dev, "failed to init register map: %d\n", ret);
+		return ret;
+	}
+
+	ret = devm_snd_soc_register_component(dev,
+					&atmel_classd_cpu_dai_component,
+					&atmel_classd_cpu_dai, 1);
+	if (ret) {
+		dev_err(dev, "could not register CPU DAI: %d\n", ret);
+		return ret;
+	}
+
+	ret = devm_snd_dmaengine_pcm_register(dev,
+					&atmel_classd_dmaengine_pcm_config,
+					0);
+	if (ret) {
+		dev_err(dev, "could not register platform: %d\n", ret);
+		return ret;
+	}
+
+	/* register sound card */
+	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card) {
+		ret = -ENOMEM;
+		goto unregister_codec;
+	}
+
+	snd_soc_card_set_drvdata(card, dd);
+
+	ret = atmel_classd_asoc_card_init(dev, card);
+	if (ret) {
+		dev_err(dev, "failed to init sound card\n");
+		goto unregister_codec;
+	}
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret) {
+		dev_err(dev, "failed to register sound card: %d\n", ret);
+		goto unregister_codec;
+	}
+
+	return 0;
+
+unregister_codec:
+	return ret;
+}
+
+static int atmel_classd_remove(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static struct platform_driver atmel_classd_driver = {
+	.driver	= {
+		.name		= "atmel-classd",
+		.of_match_table	= of_match_ptr(atmel_classd_of_match),
+		.pm		= &snd_soc_pm_ops,
+	},
+	.probe	= atmel_classd_probe,
+	.remove	= atmel_classd_remove,
+};
+module_platform_driver(atmel_classd_driver);
+
+MODULE_DESCRIPTION("Atmel ClassD driver under ALSA SoC architecture");
+MODULE_AUTHOR("Songjun Wu <songjun.wu@atmel.com>");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/atmel-classd.h b/sound/soc/atmel/atmel-classd.h
new file mode 100644
index 000000000..0f2e25aeb
--- /dev/null
+++ b/sound/soc/atmel/atmel-classd.h
@@ -0,0 +1,121 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ATMEL_CLASSD_H_
+#define __ATMEL_CLASSD_H_
+
+#define CLASSD_CR		0x00000000
+#define CLASSD_CR_RESET		0x1
+
+#define CLASSD_MR			0x00000004
+
+#define CLASSD_MR_LEN_DIS		0x0
+#define CLASSD_MR_LEN_EN		0x1
+#define CLASSD_MR_LEN_MASK		(0x1 << 0)
+#define CLASSD_MR_LEN_SHIFT		(0)
+
+#define CLASSD_MR_LMUTE_DIS		0x0
+#define CLASSD_MR_LMUTE_EN		0x1
+#define CLASSD_MR_LMUTE_SHIFT		(0x1)
+#define CLASSD_MR_LMUTE_MASK		(0x1 << 1)
+
+#define CLASSD_MR_REN_DIS		0x0
+#define CLASSD_MR_REN_EN		0x1
+#define CLASSD_MR_REN_MASK		(0x1 << 4)
+#define CLASSD_MR_REN_SHIFT		(4)
+
+#define CLASSD_MR_RMUTE_DIS		0x0
+#define CLASSD_MR_RMUTE_EN		0x1
+#define CLASSD_MR_RMUTE_SHIFT		(0x5)
+#define CLASSD_MR_RMUTE_MASK		(0x1 << 5)
+
+#define CLASSD_MR_PWMTYP_SINGLE		0x0
+#define CLASSD_MR_PWMTYP_DIFF		0x1
+#define CLASSD_MR_PWMTYP_MASK		(0x1 << 8)
+#define CLASSD_MR_PWMTYP_SHIFT		(8)
+
+#define CLASSD_MR_NON_OVERLAP_DIS	0x0
+#define CLASSD_MR_NON_OVERLAP_EN	0x1
+#define CLASSD_MR_NON_OVERLAP_MASK	(0x1 << 16)
+#define CLASSD_MR_NON_OVERLAP_SHIFT	(16)
+
+#define CLASSD_MR_NOVR_VAL_5NS		0x0
+#define CLASSD_MR_NOVR_VAL_10NS		0x1
+#define CLASSD_MR_NOVR_VAL_15NS		0x2
+#define CLASSD_MR_NOVR_VAL_20NS		0x3
+#define CLASSD_MR_NOVR_VAL_MASK		(0x3 << 20)
+#define CLASSD_MR_NOVR_VAL_SHIFT	(20)
+
+#define CLASSD_INTPMR				0x00000008
+
+#define CLASSD_INTPMR_ATTL_MASK			(0x3f << 0)
+#define CLASSD_INTPMR_ATTL_SHIFT		(0)
+#define CLASSD_INTPMR_ATTR_MASK			(0x3f << 8)
+#define CLASSD_INTPMR_ATTR_SHIFT		(8)
+
+#define CLASSD_INTPMR_DSP_CLK_FREQ_12M288	0x0
+#define CLASSD_INTPMR_DSP_CLK_FREQ_11M2896	0x1
+#define CLASSD_INTPMR_DSP_CLK_FREQ_MASK		(0x1 << 16)
+#define CLASSD_INTPMR_DSP_CLK_FREQ_SHIFT	(16)
+
+#define CLASSD_INTPMR_DEEMP_DIS			0x0
+#define CLASSD_INTPMR_DEEMP_EN			0x1
+#define CLASSD_INTPMR_DEEMP_MASK		(0x1 << 18)
+#define CLASSD_INTPMR_DEEMP_SHIFT		(18)
+
+#define CLASSD_INTPMR_SWAP_LEFT_ON_LSB		0x0
+#define CLASSD_INTPMR_SWAP_RIGHT_ON_LSB		0x1
+#define CLASSD_INTPMR_SWAP_MASK			(0x1 << 19)
+#define CLASSD_INTPMR_SWAP_SHIFT		(19)
+
+#define CLASSD_INTPMR_FRAME_8K			0x0
+#define CLASSD_INTPMR_FRAME_16K			0x1
+#define CLASSD_INTPMR_FRAME_32K			0x2
+#define CLASSD_INTPMR_FRAME_48K			0x3
+#define CLASSD_INTPMR_FRAME_96K			0x4
+#define CLASSD_INTPMR_FRAME_22K			0x5
+#define CLASSD_INTPMR_FRAME_44K			0x6
+#define CLASSD_INTPMR_FRAME_88K			0x7
+#define CLASSD_INTPMR_FRAME_MASK		(0x7 << 20)
+#define CLASSD_INTPMR_FRAME_SHIFT		(20)
+
+#define CLASSD_INTPMR_EQCFG_FLAT		0x0
+#define CLASSD_INTPMR_EQCFG_B_BOOST_12		0x1
+#define CLASSD_INTPMR_EQCFG_B_BOOST_6		0x2
+#define CLASSD_INTPMR_EQCFG_B_CUT_12		0x3
+#define CLASSD_INTPMR_EQCFG_B_CUT_6		0x4
+#define CLASSD_INTPMR_EQCFG_M_BOOST_3		0x5
+#define CLASSD_INTPMR_EQCFG_M_BOOST_8		0x6
+#define CLASSD_INTPMR_EQCFG_M_CUT_3		0x7
+#define CLASSD_INTPMR_EQCFG_M_CUT_8		0x8
+#define CLASSD_INTPMR_EQCFG_T_BOOST_12		0x9
+#define CLASSD_INTPMR_EQCFG_T_BOOST_6		0xa
+#define CLASSD_INTPMR_EQCFG_T_CUT_12		0xb
+#define CLASSD_INTPMR_EQCFG_T_CUT_6		0xc
+#define CLASSD_INTPMR_EQCFG_SHIFT		(24)
+
+#define CLASSD_INTPMR_MONO_DIS			0x0
+#define CLASSD_INTPMR_MONO_EN			0x1
+#define CLASSD_INTPMR_MONO_MASK			(0x1 << 28)
+#define CLASSD_INTPMR_MONO_SHIFT		(28)
+
+#define CLASSD_INTPMR_MONO_MODE_MIX		0x0
+#define CLASSD_INTPMR_MONO_MODE_SAT		0x1
+#define CLASSD_INTPMR_MONO_MODE_LEFT		0x2
+#define CLASSD_INTPMR_MONO_MODE_RIGHT		0x3
+#define CLASSD_INTPMR_MONO_MODE_MASK		(0x3 << 29)
+#define CLASSD_INTPMR_MONO_MODE_SHIFT		(29)
+
+#define CLASSD_INTSR	0x0000000c
+
+#define CLASSD_THR	0x00000010
+
+#define CLASSD_IER	0x00000014
+
+#define CLASSD_IDR	0x00000018
+
+#define CLASSD_IMR	0x0000001c
+
+#define CLASSD_ISR	0x00000020
+
+#define CLASSD_WPMR	0x000000e4
+
+#endif
diff --git a/sound/soc/atmel/atmel-i2s.c b/sound/soc/atmel/atmel-i2s.c
new file mode 100644
index 000000000..5e43ff0b5
--- /dev/null
+++ b/sound/soc/atmel/atmel-i2s.c
@@ -0,0 +1,744 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Driver for Atmel I2S controller
+ *
+ * Copyright (C) 2015 Atmel Corporation
+ *
+ * Author: Cyrille Pitchen <cyrille.pitchen@atmel.com>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/mfd/syscon.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>
+
+#define ATMEL_I2SC_MAX_TDM_CHANNELS	8
+
+/*
+ * ---- I2S Controller Register map ----
+ */
+#define ATMEL_I2SC_CR		0x0000	/* Control Register */
+#define ATMEL_I2SC_MR		0x0004	/* Mode Register */
+#define ATMEL_I2SC_SR		0x0008	/* Status Register */
+#define ATMEL_I2SC_SCR		0x000c	/* Status Clear Register */
+#define ATMEL_I2SC_SSR		0x0010	/* Status Set Register */
+#define ATMEL_I2SC_IER		0x0014	/* Interrupt Enable Register */
+#define ATMEL_I2SC_IDR		0x0018	/* Interrupt Disable Register */
+#define ATMEL_I2SC_IMR		0x001c	/* Interrupt Mask Register */
+#define ATMEL_I2SC_RHR		0x0020	/* Receiver Holding Register */
+#define ATMEL_I2SC_THR		0x0024	/* Transmitter Holding Register */
+#define ATMEL_I2SC_VERSION	0x0028	/* Version Register */
+
+/*
+ * ---- Control Register (Write-only) ----
+ */
+#define ATMEL_I2SC_CR_RXEN	BIT(0)	/* Receiver Enable */
+#define ATMEL_I2SC_CR_RXDIS	BIT(1)	/* Receiver Disable */
+#define ATMEL_I2SC_CR_CKEN	BIT(2)	/* Clock Enable */
+#define ATMEL_I2SC_CR_CKDIS	BIT(3)	/* Clock Disable */
+#define ATMEL_I2SC_CR_TXEN	BIT(4)	/* Transmitter Enable */
+#define ATMEL_I2SC_CR_TXDIS	BIT(5)	/* Transmitter Disable */
+#define ATMEL_I2SC_CR_SWRST	BIT(7)	/* Software Reset */
+
+/*
+ * ---- Mode Register (Read/Write) ----
+ */
+#define ATMEL_I2SC_MR_MODE_MASK		GENMASK(0, 0)
+#define ATMEL_I2SC_MR_MODE_SLAVE	(0 << 0)
+#define ATMEL_I2SC_MR_MODE_MASTER	(1 << 0)
+
+#define ATMEL_I2SC_MR_DATALENGTH_MASK		GENMASK(4, 2)
+#define ATMEL_I2SC_MR_DATALENGTH_32_BITS	(0 << 2)
+#define ATMEL_I2SC_MR_DATALENGTH_24_BITS	(1 << 2)
+#define ATMEL_I2SC_MR_DATALENGTH_20_BITS	(2 << 2)
+#define ATMEL_I2SC_MR_DATALENGTH_18_BITS	(3 << 2)
+#define ATMEL_I2SC_MR_DATALENGTH_16_BITS	(4 << 2)
+#define ATMEL_I2SC_MR_DATALENGTH_16_BITS_COMPACT	(5 << 2)
+#define ATMEL_I2SC_MR_DATALENGTH_8_BITS		(6 << 2)
+#define ATMEL_I2SC_MR_DATALENGTH_8_BITS_COMPACT	(7 << 2)
+
+#define ATMEL_I2SC_MR_FORMAT_MASK	GENMASK(7, 6)
+#define ATMEL_I2SC_MR_FORMAT_I2S	(0 << 6)
+#define ATMEL_I2SC_MR_FORMAT_LJ		(1 << 6)  /* Left Justified */
+#define ATMEL_I2SC_MR_FORMAT_TDM	(2 << 6)
+#define ATMEL_I2SC_MR_FORMAT_TDMLJ	(3 << 6)
+
+/* Left audio samples duplicated to right audio channel */
+#define ATMEL_I2SC_MR_RXMONO		BIT(8)
+
+/* Receiver uses one DMA channel ... */
+#define ATMEL_I2SC_MR_RXDMA_MASK	GENMASK(9, 9)
+#define ATMEL_I2SC_MR_RXDMA_SINGLE	(0 << 9)  /* for all audio channels */
+#define ATMEL_I2SC_MR_RXDMA_MULTIPLE	(1 << 9)  /* per audio channel */
+
+/* I2SDO output of I2SC is internally connected to I2SDI input */
+#define ATMEL_I2SC_MR_RXLOOP		BIT(10)
+
+/* Left audio samples duplicated to right audio channel */
+#define ATMEL_I2SC_MR_TXMONO		BIT(12)
+
+/* Transmitter uses one DMA channel ... */
+#define ATMEL_I2SC_MR_TXDMA_MASK	GENMASK(13, 13)
+#define ATMEL_I2SC_MR_TXDMA_SINGLE	(0 << 13)  /* for all audio channels */
+#define ATMEL_I2SC_MR_TXDME_MULTIPLE	(1 << 13)  /* per audio channel */
+
+/* x sample transmitted when underrun */
+#define ATMEL_I2SC_MR_TXSAME_MASK	GENMASK(14, 14)
+#define ATMEL_I2SC_MR_TXSAME_ZERO	(0 << 14)  /* Zero sample */
+#define ATMEL_I2SC_MR_TXSAME_PREVIOUS	(1 << 14)  /* Previous sample */
+
+/* Audio Clock to I2SC Master Clock ratio */
+#define ATMEL_I2SC_MR_IMCKDIV_MASK	GENMASK(21, 16)
+#define ATMEL_I2SC_MR_IMCKDIV(div) \
+	(((div) << 16) & ATMEL_I2SC_MR_IMCKDIV_MASK)
+
+/* Master Clock to fs ratio */
+#define ATMEL_I2SC_MR_IMCKFS_MASK	GENMASK(29, 24)
+#define ATMEL_I2SC_MR_IMCKFS(fs) \
+	(((fs) << 24) & ATMEL_I2SC_MR_IMCKFS_MASK)
+
+/* Master Clock mode */
+#define ATMEL_I2SC_MR_IMCKMODE_MASK	GENMASK(30, 30)
+/* 0: No master clock generated (selected clock drives I2SCK pin) */
+#define ATMEL_I2SC_MR_IMCKMODE_I2SCK	(0 << 30)
+/* 1: master clock generated (internally generated clock drives I2SMCK pin) */
+#define ATMEL_I2SC_MR_IMCKMODE_I2SMCK	(1 << 30)
+
+/* Slot Width */
+/* 0: slot is 32 bits wide for DATALENGTH = 18/20/24 bits. */
+/* 1: slot is 24 bits wide for DATALENGTH = 18/20/24 bits. */
+#define ATMEL_I2SC_MR_IWS		BIT(31)
+
+/*
+ * ---- Status Registers ----
+ */
+#define ATMEL_I2SC_SR_RXEN	BIT(0)	/* Receiver Enabled */
+#define ATMEL_I2SC_SR_RXRDY	BIT(1)	/* Receive Ready */
+#define ATMEL_I2SC_SR_RXOR	BIT(2)	/* Receive Overrun */
+
+#define ATMEL_I2SC_SR_TXEN	BIT(4)	/* Transmitter Enabled */
+#define ATMEL_I2SC_SR_TXRDY	BIT(5)	/* Transmit Ready */
+#define ATMEL_I2SC_SR_TXUR	BIT(6)	/* Transmit Underrun */
+
+/* Receive Overrun Channel */
+#define ATMEL_I2SC_SR_RXORCH_MASK	GENMASK(15, 8)
+#define ATMEL_I2SC_SR_RXORCH(ch)	(1 << (((ch) & 0x7) + 8))
+
+/* Transmit Underrun Channel */
+#define ATMEL_I2SC_SR_TXURCH_MASK	GENMASK(27, 20)
+#define ATMEL_I2SC_SR_TXURCH(ch)	(1 << (((ch) & 0x7) + 20))
+
+/*
+ * ---- Interrupt Enable/Disable/Mask Registers ----
+ */
+#define ATMEL_I2SC_INT_RXRDY	ATMEL_I2SC_SR_RXRDY
+#define ATMEL_I2SC_INT_RXOR	ATMEL_I2SC_SR_RXOR
+#define ATMEL_I2SC_INT_TXRDY	ATMEL_I2SC_SR_TXRDY
+#define ATMEL_I2SC_INT_TXUR	ATMEL_I2SC_SR_TXUR
+
+static const struct regmap_config atmel_i2s_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = ATMEL_I2SC_VERSION,
+};
+
+struct atmel_i2s_gck_param {
+	int		fs;
+	unsigned long	mck;
+	int		imckdiv;
+	int		imckfs;
+};
+
+#define I2S_MCK_12M288		12288000UL
+#define I2S_MCK_11M2896		11289600UL
+#define I2S_MCK_6M144		6144000UL
+
+/* mck = (32 * (imckfs+1) / (imckdiv+1)) * fs */
+static const struct atmel_i2s_gck_param gck_params[] = {
+	/* mck = 6.144Mhz */
+	{  8000, I2S_MCK_6M144,  1, 47},	/* mck =  768 fs */
+
+	/* mck = 12.288MHz */
+	{ 16000, I2S_MCK_12M288, 1, 47},	/* mck =  768 fs */
+	{ 24000, I2S_MCK_12M288, 3, 63},	/* mck =  512 fs */
+	{ 32000, I2S_MCK_12M288, 3, 47},	/* mck =  384 fs */
+	{ 48000, I2S_MCK_12M288, 7, 63},	/* mck =  256 fs */
+	{ 64000, I2S_MCK_12M288, 7, 47},	/* mck =  192 fs */
+	{ 96000, I2S_MCK_12M288, 7, 31},	/* mck =  128 fs */
+	{192000, I2S_MCK_12M288, 7, 15},	/* mck =   64 fs */
+
+	/* mck = 11.2896MHz */
+	{ 11025, I2S_MCK_11M2896, 1, 63},	/* mck = 1024 fs */
+	{ 22050, I2S_MCK_11M2896, 3, 63},	/* mck =  512 fs */
+	{ 44100, I2S_MCK_11M2896, 7, 63},	/* mck =  256 fs */
+	{ 88200, I2S_MCK_11M2896, 7, 31},	/* mck =  128 fs */
+	{176400, I2S_MCK_11M2896, 7, 15},	/* mck =   64 fs */
+};
+
+struct atmel_i2s_dev;
+
+struct atmel_i2s_caps {
+	int	(*mck_init)(struct atmel_i2s_dev *, struct device_node *np);
+};
+
+struct atmel_i2s_dev {
+	struct device				*dev;
+	struct regmap				*regmap;
+	struct clk				*pclk;
+	struct clk				*gclk;
+	struct snd_dmaengine_dai_dma_data	playback;
+	struct snd_dmaengine_dai_dma_data	capture;
+	unsigned int				fmt;
+	const struct atmel_i2s_gck_param	*gck_param;
+	const struct atmel_i2s_caps		*caps;
+	int					clk_use_no;
+};
+
+static irqreturn_t atmel_i2s_interrupt(int irq, void *dev_id)
+{
+	struct atmel_i2s_dev *dev = dev_id;
+	unsigned int sr, imr, pending, ch, mask;
+	irqreturn_t ret = IRQ_NONE;
+
+	regmap_read(dev->regmap, ATMEL_I2SC_SR, &sr);
+	regmap_read(dev->regmap, ATMEL_I2SC_IMR, &imr);
+	pending = sr & imr;
+
+	if (!pending)
+		return IRQ_NONE;
+
+	if (pending & ATMEL_I2SC_INT_RXOR) {
+		mask = ATMEL_I2SC_SR_RXOR;
+
+		for (ch = 0; ch < ATMEL_I2SC_MAX_TDM_CHANNELS; ++ch) {
+			if (sr & ATMEL_I2SC_SR_RXORCH(ch)) {
+				mask |= ATMEL_I2SC_SR_RXORCH(ch);
+				dev_err(dev->dev,
+					"RX overrun on channel %d\n", ch);
+			}
+		}
+		regmap_write(dev->regmap, ATMEL_I2SC_SCR, mask);
+		ret = IRQ_HANDLED;
+	}
+
+	if (pending & ATMEL_I2SC_INT_TXUR) {
+		mask = ATMEL_I2SC_SR_TXUR;
+
+		for (ch = 0; ch < ATMEL_I2SC_MAX_TDM_CHANNELS; ++ch) {
+			if (sr & ATMEL_I2SC_SR_TXURCH(ch)) {
+				mask |= ATMEL_I2SC_SR_TXURCH(ch);
+				dev_err(dev->dev,
+					"TX underrun on channel %d\n", ch);
+			}
+		}
+		regmap_write(dev->regmap, ATMEL_I2SC_SCR, mask);
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+}
+
+#define ATMEL_I2S_RATES		SNDRV_PCM_RATE_8000_192000
+
+#define ATMEL_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 |	\
+				 SNDRV_PCM_FMTBIT_S32_LE)
+
+static int atmel_i2s_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct atmel_i2s_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	dev->fmt = fmt;
+	return 0;
+}
+
+static int atmel_i2s_prepare(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct atmel_i2s_dev *dev = snd_soc_dai_get_drvdata(dai);
+	bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+	unsigned int rhr, sr = 0;
+
+	if (is_playback) {
+		regmap_read(dev->regmap, ATMEL_I2SC_SR, &sr);
+		if (sr & ATMEL_I2SC_SR_RXRDY) {
+			/*
+			 * The RX Ready flag should not be set. However if here,
+			 * we flush (read) the Receive Holding Register to start
+			 * from a clean state.
+			 */
+			dev_dbg(dev->dev, "RXRDY is set\n");
+			regmap_read(dev->regmap, ATMEL_I2SC_RHR, &rhr);
+		}
+	}
+
+	return 0;
+}
+
+static int atmel_i2s_get_gck_param(struct atmel_i2s_dev *dev, int fs)
+{
+	int i, best;
+
+	if (!dev->gclk) {
+		dev_err(dev->dev, "cannot generate the I2S Master Clock\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * Find the best possible settings to generate the I2S Master Clock
+	 * from the PLL Audio.
+	 */
+	dev->gck_param = NULL;
+	best = INT_MAX;
+	for (i = 0; i < ARRAY_SIZE(gck_params); ++i) {
+		const struct atmel_i2s_gck_param *gck_param = &gck_params[i];
+		int val = abs(fs - gck_param->fs);
+
+		if (val < best) {
+			best = val;
+			dev->gck_param = gck_param;
+		}
+	}
+
+	return 0;
+}
+
+static int atmel_i2s_hw_params(struct snd_pcm_substream *substream,
+			       struct snd_pcm_hw_params *params,
+			       struct snd_soc_dai *dai)
+{
+	struct atmel_i2s_dev *dev = snd_soc_dai_get_drvdata(dai);
+	bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+	unsigned int mr = 0, mr_mask;
+	int ret;
+
+	mr_mask = ATMEL_I2SC_MR_FORMAT_MASK | ATMEL_I2SC_MR_MODE_MASK |
+		ATMEL_I2SC_MR_DATALENGTH_MASK;
+	if (is_playback)
+		mr_mask |= ATMEL_I2SC_MR_TXMONO;
+	else
+		mr_mask |= ATMEL_I2SC_MR_RXMONO;
+
+	switch (dev->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		mr |= ATMEL_I2SC_MR_FORMAT_I2S;
+		break;
+
+	default:
+		dev_err(dev->dev, "unsupported bus format\n");
+		return -EINVAL;
+	}
+
+	switch (dev->fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BP_FP:
+		/* codec is slave, so cpu is master */
+		mr |= ATMEL_I2SC_MR_MODE_MASTER;
+		ret = atmel_i2s_get_gck_param(dev, params_rate(params));
+		if (ret)
+			return ret;
+		break;
+
+	case SND_SOC_DAIFMT_BC_FC:
+		/* codec is master, so cpu is slave */
+		mr |= ATMEL_I2SC_MR_MODE_SLAVE;
+		dev->gck_param = NULL;
+		break;
+
+	default:
+		dev_err(dev->dev, "unsupported master/slave mode\n");
+		return -EINVAL;
+	}
+
+	switch (params_channels(params)) {
+	case 1:
+		if (is_playback)
+			mr |= ATMEL_I2SC_MR_TXMONO;
+		else
+			mr |= ATMEL_I2SC_MR_RXMONO;
+		break;
+	case 2:
+		break;
+	default:
+		dev_err(dev->dev, "unsupported number of audio channels\n");
+		return -EINVAL;
+	}
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S8:
+		mr |= ATMEL_I2SC_MR_DATALENGTH_8_BITS;
+		break;
+
+	case SNDRV_PCM_FORMAT_S16_LE:
+		mr |= ATMEL_I2SC_MR_DATALENGTH_16_BITS;
+		break;
+
+	case SNDRV_PCM_FORMAT_S18_3LE:
+		mr |= ATMEL_I2SC_MR_DATALENGTH_18_BITS | ATMEL_I2SC_MR_IWS;
+		break;
+
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		mr |= ATMEL_I2SC_MR_DATALENGTH_20_BITS | ATMEL_I2SC_MR_IWS;
+		break;
+
+	case SNDRV_PCM_FORMAT_S24_3LE:
+		mr |= ATMEL_I2SC_MR_DATALENGTH_24_BITS | ATMEL_I2SC_MR_IWS;
+		break;
+
+	case SNDRV_PCM_FORMAT_S24_LE:
+		mr |= ATMEL_I2SC_MR_DATALENGTH_24_BITS;
+		break;
+
+	case SNDRV_PCM_FORMAT_S32_LE:
+		mr |= ATMEL_I2SC_MR_DATALENGTH_32_BITS;
+		break;
+
+	default:
+		dev_err(dev->dev, "unsupported size/endianness for audio samples\n");
+		return -EINVAL;
+	}
+
+	return regmap_update_bits(dev->regmap, ATMEL_I2SC_MR, mr_mask, mr);
+}
+
+static int atmel_i2s_switch_mck_generator(struct atmel_i2s_dev *dev,
+					  bool enabled)
+{
+	unsigned int mr, mr_mask;
+	unsigned long gclk_rate;
+	int ret;
+
+	mr = 0;
+	mr_mask = (ATMEL_I2SC_MR_IMCKDIV_MASK |
+		   ATMEL_I2SC_MR_IMCKFS_MASK |
+		   ATMEL_I2SC_MR_IMCKMODE_MASK);
+
+	if (!enabled) {
+		/* Disable the I2S Master Clock generator. */
+		ret = regmap_write(dev->regmap, ATMEL_I2SC_CR,
+				   ATMEL_I2SC_CR_CKDIS);
+		if (ret)
+			return ret;
+
+		/* Reset the I2S Master Clock generator settings. */
+		ret = regmap_update_bits(dev->regmap, ATMEL_I2SC_MR,
+					 mr_mask, mr);
+		if (ret)
+			return ret;
+
+		/* Disable/unprepare the PMC generated clock. */
+		clk_disable_unprepare(dev->gclk);
+
+		return 0;
+	}
+
+	if (!dev->gck_param)
+		return -EINVAL;
+
+	gclk_rate = dev->gck_param->mck * (dev->gck_param->imckdiv + 1);
+
+	ret = clk_set_rate(dev->gclk, gclk_rate);
+	if (ret)
+		return ret;
+
+	ret = clk_prepare_enable(dev->gclk);
+	if (ret)
+		return ret;
+
+	/* Update the Mode Register to generate the I2S Master Clock. */
+	mr |= ATMEL_I2SC_MR_IMCKDIV(dev->gck_param->imckdiv);
+	mr |= ATMEL_I2SC_MR_IMCKFS(dev->gck_param->imckfs);
+	mr |= ATMEL_I2SC_MR_IMCKMODE_I2SMCK;
+	ret = regmap_update_bits(dev->regmap, ATMEL_I2SC_MR, mr_mask, mr);
+	if (ret)
+		return ret;
+
+	/* Finally enable the I2S Master Clock generator. */
+	return regmap_write(dev->regmap, ATMEL_I2SC_CR,
+			    ATMEL_I2SC_CR_CKEN);
+}
+
+static int atmel_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+			     struct snd_soc_dai *dai)
+{
+	struct atmel_i2s_dev *dev = snd_soc_dai_get_drvdata(dai);
+	bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+	bool is_master, mck_enabled;
+	unsigned int cr, mr;
+	int err;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		cr = is_playback ? ATMEL_I2SC_CR_TXEN : ATMEL_I2SC_CR_RXEN;
+		mck_enabled = true;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		cr = is_playback ? ATMEL_I2SC_CR_TXDIS : ATMEL_I2SC_CR_RXDIS;
+		mck_enabled = false;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* Read the Mode Register to retrieve the master/slave state. */
+	err = regmap_read(dev->regmap, ATMEL_I2SC_MR, &mr);
+	if (err)
+		return err;
+	is_master = (mr & ATMEL_I2SC_MR_MODE_MASK) == ATMEL_I2SC_MR_MODE_MASTER;
+
+	/* If master starts, enable the audio clock. */
+	if (is_master && mck_enabled) {
+		if (!dev->clk_use_no) {
+			err = atmel_i2s_switch_mck_generator(dev, true);
+			if (err)
+				return err;
+		}
+		dev->clk_use_no++;
+	}
+
+	err = regmap_write(dev->regmap, ATMEL_I2SC_CR, cr);
+	if (err)
+		return err;
+
+	/* If master stops, disable the audio clock. */
+	if (is_master && !mck_enabled) {
+		if (dev->clk_use_no == 1) {
+			err = atmel_i2s_switch_mck_generator(dev, false);
+			if (err)
+				return err;
+		}
+		dev->clk_use_no--;
+	}
+
+	return err;
+}
+
+static const struct snd_soc_dai_ops atmel_i2s_dai_ops = {
+	.prepare	= atmel_i2s_prepare,
+	.trigger	= atmel_i2s_trigger,
+	.hw_params	= atmel_i2s_hw_params,
+	.set_fmt	= atmel_i2s_set_dai_fmt,
+};
+
+static int atmel_i2s_dai_probe(struct snd_soc_dai *dai)
+{
+	struct atmel_i2s_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &dev->playback, &dev->capture);
+	return 0;
+}
+
+static struct snd_soc_dai_driver atmel_i2s_dai = {
+	.probe	= atmel_i2s_dai_probe,
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = ATMEL_I2S_RATES,
+		.formats = ATMEL_I2S_FORMATS,
+	},
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = ATMEL_I2S_RATES,
+		.formats = ATMEL_I2S_FORMATS,
+	},
+	.ops = &atmel_i2s_dai_ops,
+	.symmetric_rate = 1,
+	.symmetric_sample_bits = 1,
+};
+
+static const struct snd_soc_component_driver atmel_i2s_component = {
+	.name			= "atmel-i2s",
+	.legacy_dai_naming	= 1,
+};
+
+static int atmel_i2s_sama5d2_mck_init(struct atmel_i2s_dev *dev,
+				      struct device_node *np)
+{
+	struct clk *muxclk;
+	int err;
+
+	if (!dev->gclk)
+		return 0;
+
+	/* muxclk is optional, so we return error for probe defer only */
+	muxclk = devm_clk_get(dev->dev, "muxclk");
+	if (IS_ERR(muxclk)) {
+		err = PTR_ERR(muxclk);
+		if (err == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		dev_dbg(dev->dev,
+			"failed to get the I2S clock control: %d\n", err);
+		return 0;
+	}
+
+	return clk_set_parent(muxclk, dev->gclk);
+}
+
+static const struct atmel_i2s_caps atmel_i2s_sama5d2_caps = {
+	.mck_init = atmel_i2s_sama5d2_mck_init,
+};
+
+static const struct of_device_id atmel_i2s_dt_ids[] = {
+	{
+		.compatible = "atmel,sama5d2-i2s",
+		.data = (void *)&atmel_i2s_sama5d2_caps,
+	},
+
+	{ /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, atmel_i2s_dt_ids);
+
+static int atmel_i2s_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	const struct of_device_id *match;
+	struct atmel_i2s_dev *dev;
+	struct resource *mem;
+	struct regmap *regmap;
+	void __iomem *base;
+	int irq;
+	int err;
+	unsigned int pcm_flags = 0;
+	unsigned int version;
+
+	/* Get memory for driver data. */
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	/* Get hardware capabilities. */
+	match = of_match_node(atmel_i2s_dt_ids, np);
+	if (match)
+		dev->caps = match->data;
+
+	/* Map I/O registers. */
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	regmap = devm_regmap_init_mmio(&pdev->dev, base,
+				       &atmel_i2s_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	/* Request IRQ. */
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	err = devm_request_irq(&pdev->dev, irq, atmel_i2s_interrupt, 0,
+			       dev_name(&pdev->dev), dev);
+	if (err)
+		return err;
+
+	/* Get the peripheral clock. */
+	dev->pclk = devm_clk_get(&pdev->dev, "pclk");
+	if (IS_ERR(dev->pclk)) {
+		err = PTR_ERR(dev->pclk);
+		dev_err(&pdev->dev,
+			"failed to get the peripheral clock: %d\n", err);
+		return err;
+	}
+
+	/* Get audio clock to generate the I2S Master Clock (I2S_MCK) */
+	dev->gclk = devm_clk_get(&pdev->dev, "gclk");
+	if (IS_ERR(dev->gclk)) {
+		if (PTR_ERR(dev->gclk) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		/* Master Mode not supported */
+		dev->gclk = NULL;
+	}
+	dev->dev = &pdev->dev;
+	dev->regmap = regmap;
+	platform_set_drvdata(pdev, dev);
+
+	/* Do hardware specific settings to initialize I2S_MCK generator */
+	if (dev->caps && dev->caps->mck_init) {
+		err = dev->caps->mck_init(dev, np);
+		if (err)
+			return err;
+	}
+
+	/* Enable the peripheral clock. */
+	err = clk_prepare_enable(dev->pclk);
+	if (err)
+		return err;
+
+	/* Get IP version. */
+	regmap_read(dev->regmap, ATMEL_I2SC_VERSION, &version);
+	dev_info(&pdev->dev, "hw version: %#x\n", version);
+
+	/* Enable error interrupts. */
+	regmap_write(dev->regmap, ATMEL_I2SC_IER,
+		     ATMEL_I2SC_INT_RXOR | ATMEL_I2SC_INT_TXUR);
+
+	err = devm_snd_soc_register_component(&pdev->dev,
+					      &atmel_i2s_component,
+					      &atmel_i2s_dai, 1);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register DAI: %d\n", err);
+		clk_disable_unprepare(dev->pclk);
+		return err;
+	}
+
+	/* Prepare DMA config. */
+	dev->playback.addr	= (dma_addr_t)mem->start + ATMEL_I2SC_THR;
+	dev->playback.maxburst	= 1;
+	dev->capture.addr	= (dma_addr_t)mem->start + ATMEL_I2SC_RHR;
+	dev->capture.maxburst	= 1;
+
+	if (of_property_match_string(np, "dma-names", "rx-tx") == 0)
+		pcm_flags |= SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX;
+	err = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, pcm_flags);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register PCM: %d\n", err);
+		clk_disable_unprepare(dev->pclk);
+		return err;
+	}
+
+	return 0;
+}
+
+static int atmel_i2s_remove(struct platform_device *pdev)
+{
+	struct atmel_i2s_dev *dev = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(dev->pclk);
+
+	return 0;
+}
+
+static struct platform_driver atmel_i2s_driver = {
+	.driver		= {
+		.name	= "atmel_i2s",
+		.of_match_table	= of_match_ptr(atmel_i2s_dt_ids),
+	},
+	.probe		= atmel_i2s_probe,
+	.remove		= atmel_i2s_remove,
+};
+module_platform_driver(atmel_i2s_driver);
+
+MODULE_DESCRIPTION("Atmel I2S Controller driver");
+MODULE_AUTHOR("Cyrille Pitchen <cyrille.pitchen@atmel.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/atmel/atmel-pcm-dma.c b/sound/soc/atmel/atmel-pcm-dma.c
new file mode 100644
index 000000000..96a8c7dba
--- /dev/null
+++ b/sound/soc/atmel/atmel-pcm-dma.c
@@ -0,0 +1,120 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * atmel-pcm-dma.c  --  ALSA PCM DMA support for the Atmel SoC.
+ *
+ *  Copyright (C) 2012 Atmel
+ *
+ * Author: Bo Shen <voice.shen@atmel.com>
+ *
+ * Based on atmel-pcm by:
+ * Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ * Copyright 2008 Atmel
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+#include <linux/dmaengine.h>
+#include <linux/atmel-ssc.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/dmaengine_pcm.h>
+
+#include "atmel-pcm.h"
+
+/*--------------------------------------------------------------------------*\
+ * Hardware definition
+\*--------------------------------------------------------------------------*/
+static const struct snd_pcm_hardware atmel_pcm_dma_hardware = {
+	.info			= SNDRV_PCM_INFO_MMAP |
+				  SNDRV_PCM_INFO_MMAP_VALID |
+				  SNDRV_PCM_INFO_INTERLEAVED |
+				  SNDRV_PCM_INFO_RESUME |
+				  SNDRV_PCM_INFO_PAUSE,
+	.period_bytes_min	= 256,		/* lighting DMA overhead */
+	.period_bytes_max	= 2 * 0xffff,	/* if 2 bytes format */
+	.periods_min		= 8,
+	.periods_max		= 1024,		/* no limit */
+	.buffer_bytes_max	= 512 * 1024,
+};
+
+/*
+ * atmel_pcm_dma_irq: SSC interrupt handler for DMAENGINE enabled SSC
+ *
+ * We use DMAENGINE to send/receive data to/from SSC so this ISR is only to
+ * check if any overrun occured.
+ */
+static void atmel_pcm_dma_irq(u32 ssc_sr,
+	struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_pcm_dma_params *prtd;
+
+	prtd = snd_soc_dai_get_dma_data(asoc_rtd_to_cpu(rtd, 0), substream);
+
+	if (ssc_sr & prtd->mask->ssc_error) {
+		if (snd_pcm_running(substream))
+			pr_warn("atmel-pcm: buffer %s on %s (SSC_SR=%#x)\n",
+				substream->stream == SNDRV_PCM_STREAM_PLAYBACK
+				? "underrun" : "overrun", prtd->name,
+				ssc_sr);
+
+		/* stop RX and capture: will be enabled again at restart */
+		ssc_writex(prtd->ssc->regs, SSC_CR, prtd->mask->ssc_disable);
+		snd_pcm_stop_xrun(substream);
+
+		/* now drain RHR and read status to remove xrun condition */
+		ssc_readx(prtd->ssc->regs, SSC_RHR);
+		ssc_readx(prtd->ssc->regs, SSC_SR);
+	}
+}
+
+static int atmel_pcm_configure_dma(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct dma_slave_config *slave_config)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_pcm_dma_params *prtd;
+	struct ssc_device *ssc;
+	int ret;
+
+	prtd = snd_soc_dai_get_dma_data(asoc_rtd_to_cpu(rtd, 0), substream);
+	ssc = prtd->ssc;
+
+	ret = snd_hwparams_to_dma_slave_config(substream, params, slave_config);
+	if (ret) {
+		pr_err("atmel-pcm: hwparams to dma slave configure failed\n");
+		return ret;
+	}
+
+	slave_config->dst_addr = ssc->phybase + SSC_THR;
+	slave_config->dst_maxburst = 1;
+
+	slave_config->src_addr = ssc->phybase + SSC_RHR;
+	slave_config->src_maxburst = 1;
+
+	prtd->dma_intr_handler = atmel_pcm_dma_irq;
+
+	return 0;
+}
+
+static const struct snd_dmaengine_pcm_config atmel_dmaengine_pcm_config = {
+	.prepare_slave_config = atmel_pcm_configure_dma,
+	.pcm_hardware = &atmel_pcm_dma_hardware,
+	.prealloc_buffer_size = 64 * 1024,
+};
+
+int atmel_pcm_dma_platform_register(struct device *dev)
+{
+	return devm_snd_dmaengine_pcm_register(dev,
+					&atmel_dmaengine_pcm_config, 0);
+}
+EXPORT_SYMBOL(atmel_pcm_dma_platform_register);
+
+MODULE_AUTHOR("Bo Shen <voice.shen@atmel.com>");
+MODULE_DESCRIPTION("Atmel DMA based PCM module");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/atmel-pcm-pdc.c b/sound/soc/atmel/atmel-pcm-pdc.c
new file mode 100644
index 000000000..3e7ea2021
--- /dev/null
+++ b/sound/soc/atmel/atmel-pcm-pdc.c
@@ -0,0 +1,331 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * atmel-pcm.c  --  ALSA PCM interface for the Atmel atmel SoC.
+ *
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2008 Atmel
+ *
+ * Authors: Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ *
+ * Based on at91-pcm. by:
+ * Frank Mandarino <fmandarino@endrelia.com>
+ * Copyright 2006 Endrelia Technologies Inc.
+ *
+ * Based on pxa2xx-pcm.c by:
+ *
+ * Author:	Nicolas Pitre
+ * Created:	Nov 30, 2004
+ * Copyright:	(C) 2004 MontaVista Software, Inc.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/dma-mapping.h>
+#include <linux/atmel_pdc.h>
+#include <linux/atmel-ssc.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "atmel-pcm.h"
+
+
+static int atmel_pcm_new(struct snd_soc_component *component,
+			 struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_card *card = rtd->card->snd_card;
+	int ret;
+
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
+	snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
+				       card->dev, ATMEL_SSC_DMABUF_SIZE,
+				       ATMEL_SSC_DMABUF_SIZE);
+
+	return 0;
+}
+
+/*--------------------------------------------------------------------------*\
+ * Hardware definition
+\*--------------------------------------------------------------------------*/
+/* TODO: These values were taken from the AT91 platform driver, check
+ *	 them against real values for AT32
+ */
+static const struct snd_pcm_hardware atmel_pcm_hardware = {
+	.info			= SNDRV_PCM_INFO_MMAP |
+				  SNDRV_PCM_INFO_MMAP_VALID |
+				  SNDRV_PCM_INFO_INTERLEAVED |
+				  SNDRV_PCM_INFO_PAUSE,
+	.period_bytes_min	= 32,
+	.period_bytes_max	= 8192,
+	.periods_min		= 2,
+	.periods_max		= 1024,
+	.buffer_bytes_max	= ATMEL_SSC_DMABUF_SIZE,
+};
+
+
+/*--------------------------------------------------------------------------*\
+ * Data types
+\*--------------------------------------------------------------------------*/
+struct atmel_runtime_data {
+	struct atmel_pcm_dma_params *params;
+	dma_addr_t dma_buffer;		/* physical address of dma buffer */
+	dma_addr_t dma_buffer_end;	/* first address beyond DMA buffer */
+	size_t period_size;
+
+	dma_addr_t period_ptr;		/* physical address of next period */
+};
+
+/*--------------------------------------------------------------------------*\
+ * ISR
+\*--------------------------------------------------------------------------*/
+static void atmel_pcm_dma_irq(u32 ssc_sr,
+	struct snd_pcm_substream *substream)
+{
+	struct atmel_runtime_data *prtd = substream->runtime->private_data;
+	struct atmel_pcm_dma_params *params = prtd->params;
+	static int count;
+
+	count++;
+
+	if (ssc_sr & params->mask->ssc_endbuf) {
+		pr_warn("atmel-pcm: buffer %s on %s (SSC_SR=%#x, count=%d)\n",
+				substream->stream == SNDRV_PCM_STREAM_PLAYBACK
+				? "underrun" : "overrun",
+				params->name, ssc_sr, count);
+
+		/* re-start the PDC */
+		ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+			   params->mask->pdc_disable);
+		prtd->period_ptr += prtd->period_size;
+		if (prtd->period_ptr >= prtd->dma_buffer_end)
+			prtd->period_ptr = prtd->dma_buffer;
+
+		ssc_writex(params->ssc->regs, params->pdc->xpr,
+			   prtd->period_ptr);
+		ssc_writex(params->ssc->regs, params->pdc->xcr,
+			   prtd->period_size / params->pdc_xfer_size);
+		ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+			   params->mask->pdc_enable);
+	}
+
+	if (ssc_sr & params->mask->ssc_endx) {
+		/* Load the PDC next pointer and counter registers */
+		prtd->period_ptr += prtd->period_size;
+		if (prtd->period_ptr >= prtd->dma_buffer_end)
+			prtd->period_ptr = prtd->dma_buffer;
+
+		ssc_writex(params->ssc->regs, params->pdc->xnpr,
+			   prtd->period_ptr);
+		ssc_writex(params->ssc->regs, params->pdc->xncr,
+			   prtd->period_size / params->pdc_xfer_size);
+	}
+
+	snd_pcm_period_elapsed(substream);
+}
+
+
+/*--------------------------------------------------------------------------*\
+ * PCM operations
+\*--------------------------------------------------------------------------*/
+static int atmel_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 atmel_runtime_data *prtd = runtime->private_data;
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+
+	/* this may get called several times by oss emulation
+	 * with different params */
+
+	prtd->params = snd_soc_dai_get_dma_data(asoc_rtd_to_cpu(rtd, 0), substream);
+	prtd->params->dma_intr_handler = atmel_pcm_dma_irq;
+
+	prtd->dma_buffer = runtime->dma_addr;
+	prtd->dma_buffer_end = runtime->dma_addr + runtime->dma_bytes;
+	prtd->period_size = params_period_bytes(params);
+
+	pr_debug("atmel-pcm: "
+		"hw_params: DMA for %s initialized "
+		"(dma_bytes=%zu, period_size=%zu)\n",
+		prtd->params->name,
+		runtime->dma_bytes,
+		prtd->period_size);
+	return 0;
+}
+
+static int atmel_pcm_hw_free(struct snd_soc_component *component,
+			     struct snd_pcm_substream *substream)
+{
+	struct atmel_runtime_data *prtd = substream->runtime->private_data;
+	struct atmel_pcm_dma_params *params = prtd->params;
+
+	if (params != NULL) {
+		ssc_writex(params->ssc->regs, SSC_PDC_PTCR,
+			   params->mask->pdc_disable);
+		prtd->params->dma_intr_handler = NULL;
+	}
+
+	return 0;
+}
+
+static int atmel_pcm_prepare(struct snd_soc_component *component,
+			     struct snd_pcm_substream *substream)
+{
+	struct atmel_runtime_data *prtd = substream->runtime->private_data;
+	struct atmel_pcm_dma_params *params = prtd->params;
+
+	ssc_writex(params->ssc->regs, SSC_IDR,
+		   params->mask->ssc_endx | params->mask->ssc_endbuf);
+	ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+		   params->mask->pdc_disable);
+	return 0;
+}
+
+static int atmel_pcm_trigger(struct snd_soc_component *component,
+			     struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_pcm_runtime *rtd = substream->runtime;
+	struct atmel_runtime_data *prtd = rtd->private_data;
+	struct atmel_pcm_dma_params *params = prtd->params;
+	int ret = 0;
+
+	pr_debug("atmel-pcm:buffer_size = %ld,"
+		"dma_area = %p, dma_bytes = %zu\n",
+		rtd->buffer_size, rtd->dma_area, rtd->dma_bytes);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		prtd->period_ptr = prtd->dma_buffer;
+
+		ssc_writex(params->ssc->regs, params->pdc->xpr,
+			   prtd->period_ptr);
+		ssc_writex(params->ssc->regs, params->pdc->xcr,
+			   prtd->period_size / params->pdc_xfer_size);
+
+		prtd->period_ptr += prtd->period_size;
+		ssc_writex(params->ssc->regs, params->pdc->xnpr,
+			   prtd->period_ptr);
+		ssc_writex(params->ssc->regs, params->pdc->xncr,
+			   prtd->period_size / params->pdc_xfer_size);
+
+		pr_debug("atmel-pcm: trigger: "
+			"period_ptr=%lx, xpr=%u, "
+			"xcr=%u, xnpr=%u, xncr=%u\n",
+			(unsigned long)prtd->period_ptr,
+			ssc_readx(params->ssc->regs, params->pdc->xpr),
+			ssc_readx(params->ssc->regs, params->pdc->xcr),
+			ssc_readx(params->ssc->regs, params->pdc->xnpr),
+			ssc_readx(params->ssc->regs, params->pdc->xncr));
+
+		ssc_writex(params->ssc->regs, SSC_IER,
+			   params->mask->ssc_endx | params->mask->ssc_endbuf);
+		ssc_writex(params->ssc->regs, SSC_PDC_PTCR,
+			   params->mask->pdc_enable);
+
+		pr_debug("sr=%u imr=%u\n",
+			ssc_readx(params->ssc->regs, SSC_SR),
+			ssc_readx(params->ssc->regs, SSC_IER));
+		break;		/* SNDRV_PCM_TRIGGER_START */
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+			   params->mask->pdc_disable);
+		break;
+
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		ssc_writex(params->ssc->regs, ATMEL_PDC_PTCR,
+			   params->mask->pdc_enable);
+		break;
+
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static snd_pcm_uframes_t atmel_pcm_pointer(struct snd_soc_component *component,
+					   struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct atmel_runtime_data *prtd = runtime->private_data;
+	struct atmel_pcm_dma_params *params = prtd->params;
+	dma_addr_t ptr;
+	snd_pcm_uframes_t x;
+
+	ptr = (dma_addr_t) ssc_readx(params->ssc->regs, params->pdc->xpr);
+	x = bytes_to_frames(runtime, ptr - prtd->dma_buffer);
+
+	if (x == runtime->buffer_size)
+		x = 0;
+
+	return x;
+}
+
+static int atmel_pcm_open(struct snd_soc_component *component,
+			  struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct atmel_runtime_data *prtd;
+	int ret = 0;
+
+	snd_soc_set_runtime_hwparams(substream, &atmel_pcm_hardware);
+
+	/* ensure that buffer size is a multiple of period size */
+	ret = snd_pcm_hw_constraint_integer(runtime,
+						SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0)
+		goto out;
+
+	prtd = kzalloc(sizeof(struct atmel_runtime_data), GFP_KERNEL);
+	if (prtd == NULL) {
+		ret = -ENOMEM;
+		goto out;
+	}
+	runtime->private_data = prtd;
+
+ out:
+	return ret;
+}
+
+static int atmel_pcm_close(struct snd_soc_component *component,
+			   struct snd_pcm_substream *substream)
+{
+	struct atmel_runtime_data *prtd = substream->runtime->private_data;
+
+	kfree(prtd);
+	return 0;
+}
+
+static const struct snd_soc_component_driver atmel_soc_platform = {
+	.open		= atmel_pcm_open,
+	.close		= atmel_pcm_close,
+	.hw_params	= atmel_pcm_hw_params,
+	.hw_free	= atmel_pcm_hw_free,
+	.prepare	= atmel_pcm_prepare,
+	.trigger	= atmel_pcm_trigger,
+	.pointer	= atmel_pcm_pointer,
+	.pcm_construct	= atmel_pcm_new,
+};
+
+int atmel_pcm_pdc_platform_register(struct device *dev)
+{
+	return devm_snd_soc_register_component(dev, &atmel_soc_platform,
+					       NULL, 0);
+}
+EXPORT_SYMBOL(atmel_pcm_pdc_platform_register);
+
+MODULE_AUTHOR("Sedji Gaouaou <sedji.gaouaou@atmel.com>");
+MODULE_DESCRIPTION("Atmel PCM module");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/atmel-pcm.h b/sound/soc/atmel/atmel-pcm.h
new file mode 100644
index 000000000..2e648748e
--- /dev/null
+++ b/sound/soc/atmel/atmel-pcm.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * at91-pcm.h - ALSA PCM interface for the Atmel AT91 SoC.
+ *
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2008 Atmel
+ *
+ * Authors: Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ *
+ * Based on at91-pcm. by:
+ * Frank Mandarino <fmandarino@endrelia.com>
+ * Copyright 2006 Endrelia Technologies Inc.
+ *
+ * Based on pxa2xx-pcm.c by:
+ *
+ * Author:	Nicolas Pitre
+ * Created:	Nov 30, 2004
+ * Copyright:	(C) 2004 MontaVista Software, Inc.
+ */
+
+#ifndef _ATMEL_PCM_H
+#define _ATMEL_PCM_H
+
+#include <linux/atmel-ssc.h>
+
+#define ATMEL_SSC_DMABUF_SIZE	(64 * 1024)
+
+/*
+ * Registers and status bits that are required by the PCM driver.
+ */
+struct atmel_pdc_regs {
+	unsigned int	xpr;		/* PDC recv/trans pointer */
+	unsigned int	xcr;		/* PDC recv/trans counter */
+	unsigned int	xnpr;		/* PDC next recv/trans pointer */
+	unsigned int	xncr;		/* PDC next recv/trans counter */
+	unsigned int	ptcr;		/* PDC transfer control */
+};
+
+struct atmel_ssc_mask {
+	u32	ssc_enable;		/* SSC recv/trans enable */
+	u32	ssc_disable;		/* SSC recv/trans disable */
+	u32	ssc_error;		/* SSC error conditions */
+	u32	ssc_endx;		/* SSC ENDTX or ENDRX */
+	u32	ssc_endbuf;		/* SSC TXBUFE or RXBUFF */
+	u32	pdc_enable;		/* PDC recv/trans enable */
+	u32	pdc_disable;		/* PDC recv/trans disable */
+};
+
+/*
+ * This structure, shared between the PCM driver and the interface,
+ * contains all information required by the PCM driver to perform the
+ * PDC DMA operation.  All fields except dma_intr_handler() are initialized
+ * by the interface.  The dma_intr_handler() pointer is set by the PCM
+ * driver and called by the interface SSC interrupt handler if it is
+ * non-NULL.
+ */
+struct atmel_pcm_dma_params {
+	char *name;			/* stream identifier */
+	int pdc_xfer_size;		/* PDC counter increment in bytes */
+	struct ssc_device *ssc;		/* SSC device for stream */
+	struct atmel_pdc_regs *pdc;	/* PDC receive or transmit registers */
+	struct atmel_ssc_mask *mask;	/* SSC & PDC status bits */
+	struct snd_pcm_substream *substream;
+	void (*dma_intr_handler)(u32, struct snd_pcm_substream *);
+};
+
+/*
+ * SSC register access (since ssc_writel() / ssc_readl() require literal name)
+ */
+#define ssc_readx(base, reg)            (__raw_readl((base) + (reg)))
+#define ssc_writex(base, reg, value)    __raw_writel((value), (base) + (reg))
+
+#if IS_ENABLED(CONFIG_SND_ATMEL_SOC_PDC)
+int atmel_pcm_pdc_platform_register(struct device *dev);
+#else
+static inline int atmel_pcm_pdc_platform_register(struct device *dev)
+{
+	return 0;
+}
+#endif
+
+#if IS_ENABLED(CONFIG_SND_ATMEL_SOC_DMA)
+int atmel_pcm_dma_platform_register(struct device *dev);
+#else
+static inline int atmel_pcm_dma_platform_register(struct device *dev)
+{
+	return 0;
+}
+#endif
+
+#endif /* _ATMEL_PCM_H */
diff --git a/sound/soc/atmel/atmel-pdmic.c b/sound/soc/atmel/atmel-pdmic.c
new file mode 100644
index 000000000..77ff12bae
--- /dev/null
+++ b/sound/soc/atmel/atmel-pdmic.c
@@ -0,0 +1,713 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Atmel PDMIC driver
+ *
+ * Copyright (C) 2015 Atmel
+ *
+ * Author: Songjun Wu <songjun.wu@atmel.com>
+ */
+
+#include <linux/of.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+#include "atmel-pdmic.h"
+
+struct atmel_pdmic_pdata {
+	u32 mic_min_freq;
+	u32 mic_max_freq;
+	s32 mic_offset;
+	const char *card_name;
+};
+
+struct atmel_pdmic {
+	dma_addr_t phy_base;
+	struct regmap *regmap;
+	struct clk *pclk;
+	struct clk *gclk;
+	struct device *dev;
+	int irq;
+	struct snd_pcm_substream *substream;
+	const struct atmel_pdmic_pdata *pdata;
+};
+
+static const struct of_device_id atmel_pdmic_of_match[] = {
+	{
+		.compatible = "atmel,sama5d2-pdmic",
+	}, {
+		/* sentinel */
+	}
+};
+MODULE_DEVICE_TABLE(of, atmel_pdmic_of_match);
+
+#define PDMIC_OFFSET_MAX_VAL	S16_MAX
+#define PDMIC_OFFSET_MIN_VAL	S16_MIN
+
+static struct atmel_pdmic_pdata *atmel_pdmic_dt_init(struct device *dev)
+{
+	struct device_node *np = dev->of_node;
+	struct atmel_pdmic_pdata *pdata;
+
+	if (!np) {
+		dev_err(dev, "device node not found\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return ERR_PTR(-ENOMEM);
+
+	if (of_property_read_string(np, "atmel,model", &pdata->card_name))
+		pdata->card_name = "PDMIC";
+
+	if (of_property_read_u32(np, "atmel,mic-min-freq",
+				 &pdata->mic_min_freq)) {
+		dev_err(dev, "failed to get mic-min-freq\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (of_property_read_u32(np, "atmel,mic-max-freq",
+				 &pdata->mic_max_freq)) {
+		dev_err(dev, "failed to get mic-max-freq\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (pdata->mic_max_freq < pdata->mic_min_freq) {
+		dev_err(dev,
+			"mic-max-freq should not be less than mic-min-freq\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (of_property_read_s32(np, "atmel,mic-offset", &pdata->mic_offset))
+		pdata->mic_offset = 0;
+
+	if (pdata->mic_offset > PDMIC_OFFSET_MAX_VAL) {
+		dev_warn(dev,
+			 "mic-offset value %d is larger than the max value %d, the max value is specified\n",
+			 pdata->mic_offset, PDMIC_OFFSET_MAX_VAL);
+		pdata->mic_offset = PDMIC_OFFSET_MAX_VAL;
+	} else if (pdata->mic_offset < PDMIC_OFFSET_MIN_VAL) {
+		dev_warn(dev,
+			 "mic-offset value %d is less than the min value %d, the min value is specified\n",
+			 pdata->mic_offset, PDMIC_OFFSET_MIN_VAL);
+		pdata->mic_offset = PDMIC_OFFSET_MIN_VAL;
+	}
+
+	return pdata;
+}
+
+/* cpu dai component */
+static int atmel_pdmic_cpu_dai_startup(struct snd_pcm_substream *substream,
+					struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
+	int ret;
+
+	ret = clk_prepare_enable(dd->gclk);
+	if (ret)
+		return ret;
+
+	ret =  clk_prepare_enable(dd->pclk);
+	if (ret) {
+		clk_disable_unprepare(dd->gclk);
+		return ret;
+	}
+
+	/* Clear all bits in the Control Register(PDMIC_CR) */
+	regmap_write(dd->regmap, PDMIC_CR, 0);
+
+	dd->substream = substream;
+
+	/* Enable the overrun error interrupt */
+	regmap_write(dd->regmap, PDMIC_IER, PDMIC_IER_OVRE);
+
+	return 0;
+}
+
+static void atmel_pdmic_cpu_dai_shutdown(struct snd_pcm_substream *substream,
+					struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
+
+	/* Disable the overrun error interrupt */
+	regmap_write(dd->regmap, PDMIC_IDR, PDMIC_IDR_OVRE);
+
+	clk_disable_unprepare(dd->gclk);
+	clk_disable_unprepare(dd->pclk);
+}
+
+static int atmel_pdmic_cpu_dai_prepare(struct snd_pcm_substream *substream,
+					struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_component *component = cpu_dai->component;
+	u32 val;
+	int ret;
+
+	/* Clean the PDMIC Converted Data Register */
+	ret = regmap_read(dd->regmap, PDMIC_CDR, &val);
+	if (ret < 0)
+		return 0;
+
+	ret = snd_soc_component_update_bits(component, PDMIC_CR,
+					    PDMIC_CR_ENPDM_MASK,
+					    PDMIC_CR_ENPDM_DIS <<
+					    PDMIC_CR_ENPDM_SHIFT);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+#define ATMEL_PDMIC_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+/* platform */
+#define ATMEL_PDMIC_MAX_BUF_SIZE  (64 * 1024)
+#define ATMEL_PDMIC_PREALLOC_BUF_SIZE  ATMEL_PDMIC_MAX_BUF_SIZE
+
+static const struct snd_pcm_hardware atmel_pdmic_hw = {
+	.info			= SNDRV_PCM_INFO_MMAP
+				| SNDRV_PCM_INFO_MMAP_VALID
+				| SNDRV_PCM_INFO_INTERLEAVED
+				| SNDRV_PCM_INFO_RESUME
+				| SNDRV_PCM_INFO_PAUSE,
+	.formats		= ATMEL_PDMIC_FORMATS,
+	.buffer_bytes_max	= ATMEL_PDMIC_MAX_BUF_SIZE,
+	.period_bytes_min	= 256,
+	.period_bytes_max	= 32 * 1024,
+	.periods_min		= 2,
+	.periods_max		= 256,
+};
+
+static int
+atmel_pdmic_platform_configure_dma(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params,
+				struct dma_slave_config *slave_config)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
+	int ret;
+
+	ret = snd_hwparams_to_dma_slave_config(substream, params,
+					       slave_config);
+	if (ret) {
+		dev_err(dd->dev,
+			"hw params to dma slave configure failed\n");
+		return ret;
+	}
+
+	slave_config->src_addr		= dd->phy_base + PDMIC_CDR;
+	slave_config->src_maxburst	= 1;
+	slave_config->dst_maxburst	= 1;
+
+	return 0;
+}
+
+static const struct snd_dmaengine_pcm_config
+atmel_pdmic_dmaengine_pcm_config = {
+	.prepare_slave_config	= atmel_pdmic_platform_configure_dma,
+	.pcm_hardware		= &atmel_pdmic_hw,
+	.prealloc_buffer_size	= ATMEL_PDMIC_PREALLOC_BUF_SIZE,
+};
+
+/* codec */
+/* Mic Gain = dgain * 2^(-scale) */
+struct mic_gain {
+	unsigned int dgain;
+	unsigned int scale;
+};
+
+/* range from -90 dB to 90 dB */
+static const struct mic_gain mic_gain_table[] = {
+{    1, 15}, {    1, 14},                           /* -90, -84 dB */
+{    3, 15}, {    1, 13}, {    3, 14}, {    1, 12}, /* -81, -78, -75, -72 dB */
+{    5, 14}, {   13, 15},                           /* -70, -68 dB */
+{    9, 14}, {   21, 15}, {   23, 15}, {   13, 14}, /* -65 ~ -62 dB */
+{   29, 15}, {   33, 15}, {   37, 15}, {   41, 15}, /* -61 ~ -58 dB */
+{   23, 14}, {   13, 13}, {   58, 15}, {   65, 15}, /* -57 ~ -54 dB */
+{   73, 15}, {   41, 14}, {   23, 13}, {   13, 12}, /* -53 ~ -50 dB */
+{   29, 13}, {   65, 14}, {   73, 14}, {   41, 13}, /* -49 ~ -46 dB */
+{   23, 12}, {  207, 15}, {   29, 12}, {   65, 13}, /* -45 ~ -42 dB */
+{   73, 13}, {   41, 12}, {   23, 11}, {  413, 15}, /* -41 ~ -38 dB */
+{  463, 15}, {  519, 15}, {  583, 15}, {  327, 14}, /* -37 ~ -34 dB */
+{  367, 14}, {  823, 15}, {  231, 13}, { 1036, 15}, /* -33 ~ -30 dB */
+{ 1163, 15}, { 1305, 15}, {  183, 12}, { 1642, 15}, /* -29 ~ -26 dB */
+{ 1843, 15}, { 2068, 15}, {  145, 11}, { 2603, 15}, /* -25 ~ -22 dB */
+{  365, 12}, { 3277, 15}, { 3677, 15}, { 4125, 15}, /* -21 ~ -18 dB */
+{ 4629, 15}, { 5193, 15}, { 5827, 15}, { 3269, 14}, /* -17 ~ -14 dB */
+{  917, 12}, { 8231, 15}, { 9235, 15}, { 5181, 14}, /* -13 ~ -10 dB */
+{11627, 15}, {13045, 15}, {14637, 15}, {16423, 15}, /*  -9 ~ -6 dB */
+{18427, 15}, {20675, 15}, { 5799, 13}, {26029, 15}, /*  -5 ~ -2 dB */
+{ 7301, 13}, {    1,  0}, {18383, 14}, {10313, 13}, /*  -1 ~ 2 dB */
+{23143, 14}, {25967, 14}, {29135, 14}, {16345, 13}, /*   3 ~ 6 dB */
+{ 4585, 11}, {20577, 13}, { 1443,  9}, {25905, 13}, /*   7 ~ 10 dB */
+{14533, 12}, { 8153, 11}, { 2287,  9}, {20529, 12}, /*  11 ~ 14 dB */
+{11517, 11}, { 6461, 10}, {28997, 12}, { 4067,  9}, /*  15 ~ 18 dB */
+{18253, 11}, {   10,  0}, {22979, 11}, {25783, 11}, /*  19 ~ 22 dB */
+{28929, 11}, {32459, 11}, { 9105,  9}, {20431, 10}, /*  23 ~ 26 dB */
+{22925, 10}, {12861,  9}, { 7215,  8}, {16191,  9}, /*  27 ~ 30 dB */
+{ 9083,  8}, {20383,  9}, {11435,  8}, { 6145,  7}, /*  31 ~ 34 dB */
+{ 3599,  6}, {32305,  9}, {18123,  8}, {20335,  8}, /*  35 ~ 38 dB */
+{  713,  3}, {  100,  0}, { 7181,  6}, { 8057,  6}, /*  39 ~ 42 dB */
+{  565,  2}, {20287,  7}, {11381,  6}, {25539,  7}, /*  43 ~ 46 dB */
+{ 1791,  3}, { 4019,  4}, { 9019,  5}, {20239,  6}, /*  47 ~ 50 dB */
+{ 5677,  4}, {25479,  6}, { 7147,  4}, { 8019,  4}, /*  51 ~ 54 dB */
+{17995,  5}, {20191,  5}, {11327,  4}, {12709,  4}, /*  55 ~ 58 dB */
+{ 3565,  2}, { 1000,  0}, { 1122,  0}, { 1259,  0}, /*  59 ~ 62 dB */
+{ 2825,  1}, {12679,  3}, { 7113,  2}, { 7981,  2}, /*  63 ~ 66 dB */
+{ 8955,  2}, {20095,  3}, {22547,  3}, {12649,  2}, /*  67 ~ 70 dB */
+{28385,  3}, { 3981,  0}, {17867,  2}, {20047,  2}, /*  71 ~ 74 dB */
+{11247,  1}, {12619,  1}, {14159,  1}, {31773,  2}, /*  75 ~ 78 dB */
+{17825,  1}, {10000,  0}, {11220,  0}, {12589,  0}, /*  79 ~ 82 dB */
+{28251,  1}, {15849,  0}, {17783,  0}, {19953,  0}, /*  83 ~ 86 dB */
+{22387,  0}, {25119,  0}, {28184,  0}, {31623,  0}, /*  87 ~ 90 dB */
+};
+
+static const DECLARE_TLV_DB_RANGE(mic_gain_tlv,
+	0, 1, TLV_DB_SCALE_ITEM(-9000, 600, 0),
+	2, 5, TLV_DB_SCALE_ITEM(-8100, 300, 0),
+	6, 7, TLV_DB_SCALE_ITEM(-7000, 200, 0),
+	8, ARRAY_SIZE(mic_gain_table)-1, TLV_DB_SCALE_ITEM(-6500, 100, 0),
+);
+
+static int pdmic_get_mic_volsw(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	unsigned int dgain_val, scale_val;
+	int i;
+
+	dgain_val = (snd_soc_component_read(component, PDMIC_DSPR1) & PDMIC_DSPR1_DGAIN_MASK)
+		    >> PDMIC_DSPR1_DGAIN_SHIFT;
+
+	scale_val = (snd_soc_component_read(component, PDMIC_DSPR0) & PDMIC_DSPR0_SCALE_MASK)
+		    >> PDMIC_DSPR0_SCALE_SHIFT;
+
+	for (i = 0; i < ARRAY_SIZE(mic_gain_table); i++) {
+		if ((mic_gain_table[i].dgain == dgain_val) &&
+		    (mic_gain_table[i].scale == scale_val))
+			ucontrol->value.integer.value[0] = i;
+	}
+
+	return 0;
+}
+
+static int pdmic_put_mic_volsw(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct soc_mixer_control *mc =
+		(struct soc_mixer_control *)kcontrol->private_value;
+	struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
+	int max = mc->max;
+	unsigned int val;
+	int ret;
+
+	val = ucontrol->value.integer.value[0];
+
+	if (val > max)
+		return -EINVAL;
+
+	ret = snd_soc_component_update_bits(component, PDMIC_DSPR1, PDMIC_DSPR1_DGAIN_MASK,
+			 mic_gain_table[val].dgain << PDMIC_DSPR1_DGAIN_SHIFT);
+	if (ret < 0)
+		return ret;
+
+	ret = snd_soc_component_update_bits(component, PDMIC_DSPR0, PDMIC_DSPR0_SCALE_MASK,
+			 mic_gain_table[val].scale << PDMIC_DSPR0_SCALE_SHIFT);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static const struct snd_kcontrol_new atmel_pdmic_snd_controls[] = {
+SOC_SINGLE_EXT_TLV("Mic Capture Volume", PDMIC_DSPR1, PDMIC_DSPR1_DGAIN_SHIFT,
+		   ARRAY_SIZE(mic_gain_table)-1, 0,
+		   pdmic_get_mic_volsw, pdmic_put_mic_volsw, mic_gain_tlv),
+
+SOC_SINGLE("High Pass Filter Switch", PDMIC_DSPR0,
+	   PDMIC_DSPR0_HPFBYP_SHIFT, 1, 1),
+
+SOC_SINGLE("SINCC Filter Switch", PDMIC_DSPR0, PDMIC_DSPR0_SINBYP_SHIFT, 1, 1),
+};
+
+static int atmel_pdmic_component_probe(struct snd_soc_component *component)
+{
+	struct snd_soc_card *card = snd_soc_component_get_drvdata(component);
+	struct atmel_pdmic *dd = snd_soc_card_get_drvdata(card);
+
+	snd_soc_component_update_bits(component, PDMIC_DSPR1, PDMIC_DSPR1_OFFSET_MASK,
+		     (u32)(dd->pdata->mic_offset << PDMIC_DSPR1_OFFSET_SHIFT));
+
+	return 0;
+}
+
+#define PDMIC_MR_PRESCAL_MAX_VAL 127
+
+static int
+atmel_pdmic_cpu_dai_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params,
+			      struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct atmel_pdmic *dd = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_component *component = cpu_dai->component;
+	unsigned int rate_min = substream->runtime->hw.rate_min;
+	unsigned int rate_max = substream->runtime->hw.rate_max;
+	int fs = params_rate(params);
+	int bits = params_width(params);
+	unsigned long pclk_rate, gclk_rate;
+	unsigned int f_pdmic;
+	u32 mr_val, dspr0_val, pclk_prescal, gclk_prescal;
+
+	if (params_channels(params) != 1) {
+		dev_err(component->dev,
+			"only supports one channel\n");
+		return -EINVAL;
+	}
+
+	if ((fs < rate_min) || (fs > rate_max)) {
+		dev_err(component->dev,
+			"sample rate is %dHz, min rate is %dHz, max rate is %dHz\n",
+			fs, rate_min, rate_max);
+
+		return -EINVAL;
+	}
+
+	switch (bits) {
+	case 16:
+		dspr0_val = (PDMIC_DSPR0_SIZE_16_BITS
+			     << PDMIC_DSPR0_SIZE_SHIFT);
+		break;
+	case 32:
+		dspr0_val = (PDMIC_DSPR0_SIZE_32_BITS
+			     << PDMIC_DSPR0_SIZE_SHIFT);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if ((fs << 7) > (rate_max << 6)) {
+		f_pdmic = fs << 6;
+		dspr0_val |= PDMIC_DSPR0_OSR_64 << PDMIC_DSPR0_OSR_SHIFT;
+	} else {
+		f_pdmic = fs << 7;
+		dspr0_val |= PDMIC_DSPR0_OSR_128 << PDMIC_DSPR0_OSR_SHIFT;
+	}
+
+	pclk_rate = clk_get_rate(dd->pclk);
+	gclk_rate = clk_get_rate(dd->gclk);
+
+	/* PRESCAL = SELCK/(2*f_pdmic) - 1*/
+	pclk_prescal = (u32)(pclk_rate/(f_pdmic << 1)) - 1;
+	gclk_prescal = (u32)(gclk_rate/(f_pdmic << 1)) - 1;
+
+	if ((pclk_prescal > PDMIC_MR_PRESCAL_MAX_VAL) ||
+	    (gclk_rate/((gclk_prescal + 1) << 1) <
+	     pclk_rate/((pclk_prescal + 1) << 1))) {
+		mr_val = gclk_prescal << PDMIC_MR_PRESCAL_SHIFT;
+		mr_val |= PDMIC_MR_CLKS_GCK << PDMIC_MR_CLKS_SHIFT;
+	} else {
+		mr_val = pclk_prescal << PDMIC_MR_PRESCAL_SHIFT;
+		mr_val |= PDMIC_MR_CLKS_PCK << PDMIC_MR_CLKS_SHIFT;
+	}
+
+	snd_soc_component_update_bits(component, PDMIC_MR,
+		PDMIC_MR_PRESCAL_MASK | PDMIC_MR_CLKS_MASK, mr_val);
+
+	snd_soc_component_update_bits(component, PDMIC_DSPR0,
+		PDMIC_DSPR0_OSR_MASK | PDMIC_DSPR0_SIZE_MASK, dspr0_val);
+
+	return 0;
+}
+
+static int atmel_pdmic_cpu_dai_trigger(struct snd_pcm_substream *substream,
+				       int cmd, struct snd_soc_dai *cpu_dai)
+{
+	struct snd_soc_component *component = cpu_dai->component;
+	u32 val;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		val = PDMIC_CR_ENPDM_EN << PDMIC_CR_ENPDM_SHIFT;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		val = PDMIC_CR_ENPDM_DIS << PDMIC_CR_ENPDM_SHIFT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	snd_soc_component_update_bits(component, PDMIC_CR, PDMIC_CR_ENPDM_MASK, val);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops atmel_pdmic_cpu_dai_ops = {
+	.startup	= atmel_pdmic_cpu_dai_startup,
+	.shutdown	= atmel_pdmic_cpu_dai_shutdown,
+	.prepare	= atmel_pdmic_cpu_dai_prepare,
+	.hw_params	= atmel_pdmic_cpu_dai_hw_params,
+	.trigger	= atmel_pdmic_cpu_dai_trigger,
+};
+
+
+static struct snd_soc_dai_driver atmel_pdmic_cpu_dai = {
+	.capture = {
+		.stream_name	= "Capture",
+		.channels_min	= 1,
+		.channels_max	= 1,
+		.rates		= SNDRV_PCM_RATE_KNOT,
+		.formats	= ATMEL_PDMIC_FORMATS,
+	},
+	.ops = &atmel_pdmic_cpu_dai_ops,
+};
+
+static const struct snd_soc_component_driver atmel_pdmic_cpu_dai_component = {
+	.name			= "atmel-pdmic",
+	.probe			= atmel_pdmic_component_probe,
+	.controls		= atmel_pdmic_snd_controls,
+	.num_controls		= ARRAY_SIZE(atmel_pdmic_snd_controls),
+	.idle_bias_on		= 1,
+	.use_pmdown_time	= 1,
+	.legacy_dai_naming	= 1,
+};
+
+/* ASoC sound card */
+static int atmel_pdmic_asoc_card_init(struct device *dev,
+				struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *dai_link;
+	struct atmel_pdmic *dd = snd_soc_card_get_drvdata(card);
+	struct snd_soc_dai_link_component *comp;
+
+	dai_link = devm_kzalloc(dev, sizeof(*dai_link), GFP_KERNEL);
+	if (!dai_link)
+		return -ENOMEM;
+
+	comp = devm_kzalloc(dev, 3 * sizeof(*comp), GFP_KERNEL);
+	if (!comp)
+		return -ENOMEM;
+
+	dai_link->cpus		= &comp[0];
+	dai_link->codecs	= &comp[1];
+	dai_link->platforms	= &comp[2];
+
+	dai_link->num_cpus	= 1;
+	dai_link->num_codecs	= 1;
+	dai_link->num_platforms	= 1;
+
+	dai_link->name			= "PDMIC";
+	dai_link->stream_name		= "PDMIC PCM";
+	dai_link->codecs->dai_name	= "snd-soc-dummy-dai";
+	dai_link->cpus->dai_name	= dev_name(dev);
+	dai_link->codecs->name		= "snd-soc-dummy";
+	dai_link->platforms->name	= dev_name(dev);
+
+	card->dai_link	= dai_link;
+	card->num_links	= 1;
+	card->name	= dd->pdata->card_name;
+	card->dev	= dev;
+
+	return 0;
+}
+
+static void atmel_pdmic_get_sample_rate(struct atmel_pdmic *dd,
+	unsigned int *rate_min, unsigned int *rate_max)
+{
+	u32 mic_min_freq = dd->pdata->mic_min_freq;
+	u32 mic_max_freq = dd->pdata->mic_max_freq;
+	u32 clk_max_rate = (u32)(clk_get_rate(dd->pclk) >> 1);
+	u32 clk_min_rate = (u32)(clk_get_rate(dd->gclk) >> 8);
+
+	if (mic_max_freq > clk_max_rate)
+		mic_max_freq = clk_max_rate;
+
+	if (mic_min_freq < clk_min_rate)
+		mic_min_freq = clk_min_rate;
+
+	*rate_min = DIV_ROUND_CLOSEST(mic_min_freq, 128);
+	*rate_max = mic_max_freq >> 6;
+}
+
+/* PDMIC interrupt handler */
+static irqreturn_t atmel_pdmic_interrupt(int irq, void *dev_id)
+{
+	struct atmel_pdmic *dd = (struct atmel_pdmic *)dev_id;
+	u32 pdmic_isr;
+	irqreturn_t ret = IRQ_NONE;
+
+	regmap_read(dd->regmap, PDMIC_ISR, &pdmic_isr);
+
+	if (pdmic_isr & PDMIC_ISR_OVRE) {
+		regmap_update_bits(dd->regmap, PDMIC_CR, PDMIC_CR_ENPDM_MASK,
+				   PDMIC_CR_ENPDM_DIS << PDMIC_CR_ENPDM_SHIFT);
+
+		snd_pcm_stop_xrun(dd->substream);
+
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+}
+
+/* regmap configuration */
+#define ATMEL_PDMIC_REG_MAX    0x124
+static const struct regmap_config atmel_pdmic_regmap_config = {
+	.reg_bits	= 32,
+	.reg_stride	= 4,
+	.val_bits	= 32,
+	.max_register	= ATMEL_PDMIC_REG_MAX,
+};
+
+static int atmel_pdmic_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct atmel_pdmic *dd;
+	struct resource *res;
+	void __iomem *io_base;
+	const struct atmel_pdmic_pdata *pdata;
+	struct snd_soc_card *card;
+	unsigned int rate_min, rate_max;
+	int ret;
+
+	pdata = atmel_pdmic_dt_init(dev);
+	if (IS_ERR(pdata))
+		return PTR_ERR(pdata);
+
+	dd = devm_kzalloc(dev, sizeof(*dd), GFP_KERNEL);
+	if (!dd)
+		return -ENOMEM;
+
+	dd->pdata = pdata;
+	dd->dev = dev;
+
+	dd->irq = platform_get_irq(pdev, 0);
+	if (dd->irq < 0)
+		return dd->irq;
+
+	dd->pclk = devm_clk_get(dev, "pclk");
+	if (IS_ERR(dd->pclk)) {
+		ret = PTR_ERR(dd->pclk);
+		dev_err(dev, "failed to get peripheral clock: %d\n", ret);
+		return ret;
+	}
+
+	dd->gclk = devm_clk_get(dev, "gclk");
+	if (IS_ERR(dd->gclk)) {
+		ret = PTR_ERR(dd->gclk);
+		dev_err(dev, "failed to get GCK: %d\n", ret);
+		return ret;
+	}
+
+	/* The gclk clock frequency must always be three times
+	 * lower than the pclk clock frequency
+	 */
+	ret = clk_set_rate(dd->gclk, clk_get_rate(dd->pclk)/3);
+	if (ret) {
+		dev_err(dev, "failed to set GCK clock rate: %d\n", ret);
+		return ret;
+	}
+
+	io_base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(io_base))
+		return PTR_ERR(io_base);
+
+	dd->phy_base = res->start;
+
+	dd->regmap = devm_regmap_init_mmio(dev, io_base,
+					   &atmel_pdmic_regmap_config);
+	if (IS_ERR(dd->regmap)) {
+		ret = PTR_ERR(dd->regmap);
+		dev_err(dev, "failed to init register map: %d\n", ret);
+		return ret;
+	}
+
+	ret =  devm_request_irq(dev, dd->irq, atmel_pdmic_interrupt, 0,
+				"PDMIC", (void *)dd);
+	if (ret < 0) {
+		dev_err(dev, "can't register ISR for IRQ %u (ret=%i)\n",
+			dd->irq, ret);
+		return ret;
+	}
+
+	/* Get the minimal and maximal sample rate that the microphone supports */
+	atmel_pdmic_get_sample_rate(dd, &rate_min, &rate_max);
+
+	/* register cpu dai */
+	atmel_pdmic_cpu_dai.capture.rate_min = rate_min;
+	atmel_pdmic_cpu_dai.capture.rate_max = rate_max;
+	ret = devm_snd_soc_register_component(dev,
+					      &atmel_pdmic_cpu_dai_component,
+					      &atmel_pdmic_cpu_dai, 1);
+	if (ret) {
+		dev_err(dev, "could not register CPU DAI: %d\n", ret);
+		return ret;
+	}
+
+	/* register platform */
+	ret = devm_snd_dmaengine_pcm_register(dev,
+					     &atmel_pdmic_dmaengine_pcm_config,
+					     0);
+	if (ret) {
+		dev_err(dev, "could not register platform: %d\n", ret);
+		return ret;
+	}
+
+	/* register sound card */
+	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card) {
+		ret = -ENOMEM;
+		goto unregister_codec;
+	}
+
+	snd_soc_card_set_drvdata(card, dd);
+
+	ret = atmel_pdmic_asoc_card_init(dev, card);
+	if (ret) {
+		dev_err(dev, "failed to init sound card: %d\n", ret);
+		goto unregister_codec;
+	}
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret) {
+		dev_err(dev, "failed to register sound card: %d\n", ret);
+		goto unregister_codec;
+	}
+
+	return 0;
+
+unregister_codec:
+	return ret;
+}
+
+static int atmel_pdmic_remove(struct platform_device *pdev)
+{
+	return 0;
+}
+
+static struct platform_driver atmel_pdmic_driver = {
+	.driver	= {
+		.name		= "atmel-pdmic",
+		.of_match_table	= of_match_ptr(atmel_pdmic_of_match),
+		.pm		= &snd_soc_pm_ops,
+	},
+	.probe	= atmel_pdmic_probe,
+	.remove	= atmel_pdmic_remove,
+};
+module_platform_driver(atmel_pdmic_driver);
+
+MODULE_DESCRIPTION("Atmel PDMIC driver under ALSA SoC architecture");
+MODULE_AUTHOR("Songjun Wu <songjun.wu@atmel.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/atmel/atmel-pdmic.h b/sound/soc/atmel/atmel-pdmic.h
new file mode 100644
index 000000000..1dd351871
--- /dev/null
+++ b/sound/soc/atmel/atmel-pdmic.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ATMEL_PDMIC_H_
+#define __ATMEL_PDMIC_H_
+
+#include <linux/bitops.h>
+
+#define PDMIC_CR	0x00000000
+
+#define PDMIC_CR_SWRST		0x1
+#define PDMIC_CR_SWRST_MASK	BIT(0)
+#define PDMIC_CR_SWRST_SHIFT	(0)
+
+#define PDMIC_CR_ENPDM_DIS	0x0
+#define PDMIC_CR_ENPDM_EN	0x1
+#define PDMIC_CR_ENPDM_MASK	BIT(4)
+#define PDMIC_CR_ENPDM_SHIFT	(4)
+
+#define PDMIC_MR	0x00000004
+
+#define PDMIC_MR_CLKS_PCK	0x0
+#define PDMIC_MR_CLKS_GCK	0x1
+#define PDMIC_MR_CLKS_MASK	BIT(4)
+#define PDMIC_MR_CLKS_SHIFT	(4)
+
+#define PDMIC_MR_PRESCAL_MASK	GENMASK(14, 8)
+#define PDMIC_MR_PRESCAL_SHIFT	(8)
+
+#define PDMIC_CDR	0x00000014
+
+#define PDMIC_IER	0x00000018
+#define PDMIC_IER_OVRE			BIT(25)
+
+#define PDMIC_IDR	0x0000001c
+#define PDMIC_IDR_OVRE			BIT(25)
+
+#define PDMIC_IMR	0x00000020
+
+#define PDMIC_ISR	0x00000024
+#define PDMIC_ISR_OVRE			BIT(25)
+
+#define PDMIC_DSPR0	0x00000058
+
+#define PDMIC_DSPR0_HPFBYP_DIS		0x1
+#define PDMIC_DSPR0_HPFBYP_EN		0x0
+#define PDMIC_DSPR0_HPFBYP_MASK		BIT(1)
+#define PDMIC_DSPR0_HPFBYP_SHIFT	(1)
+
+#define PDMIC_DSPR0_SINBYP_DIS		0x1
+#define PDMIC_DSPR0_SINBYP_EN		0x0
+#define PDMIC_DSPR0_SINBYP_MASK		BIT(2)
+#define PDMIC_DSPR0_SINBYP_SHIFT	(2)
+
+#define PDMIC_DSPR0_SIZE_16_BITS	0x0
+#define PDMIC_DSPR0_SIZE_32_BITS	0x1
+#define PDMIC_DSPR0_SIZE_MASK		BIT(3)
+#define PDMIC_DSPR0_SIZE_SHIFT		(3)
+
+#define PDMIC_DSPR0_OSR_128		0x0
+#define PDMIC_DSPR0_OSR_64		0x1
+#define PDMIC_DSPR0_OSR_MASK		GENMASK(6, 4)
+#define PDMIC_DSPR0_OSR_SHIFT		(4)
+
+#define PDMIC_DSPR0_SCALE_MASK		GENMASK(11, 8)
+#define PDMIC_DSPR0_SCALE_SHIFT		(8)
+
+#define PDMIC_DSPR0_SHIFT_MASK		GENMASK(15, 12)
+#define PDMIC_DSPR0_SHIFT_SHIFT		(12)
+
+#define PDMIC_DSPR1	0x0000005c
+
+#define PDMIC_DSPR1_DGAIN_MASK		GENMASK(14, 0)
+#define PDMIC_DSPR1_DGAIN_SHIFT		(0)
+
+#define PDMIC_DSPR1_OFFSET_MASK		GENMASK(31, 16)
+#define PDMIC_DSPR1_OFFSET_SHIFT	(16)
+
+#define PDMIC_WPMR	0x000000e4
+
+#define PDMIC_WPSR	0x000000e8
+
+#endif
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
new file mode 100644
index 000000000..376345443
--- /dev/null
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -0,0 +1,920 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * atmel_ssc_dai.c  --  ALSA SoC ATMEL SSC Audio Layer Platform driver
+ *
+ * Copyright (C) 2005 SAN People
+ * Copyright (C) 2008 Atmel
+ *
+ * Author: Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ *         ATMEL CORP.
+ *
+ * Based on at91-ssc.c by
+ * Frank Mandarino <fmandarino@endrelia.com>
+ * Based on pxa2xx Platform drivers by
+ * Liam Girdwood <lrg@slimlogic.co.uk>
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/clk.h>
+#include <linux/atmel_pdc.h>
+
+#include <linux/atmel-ssc.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+
+#include "atmel-pcm.h"
+#include "atmel_ssc_dai.h"
+
+
+#define NUM_SSC_DEVICES		3
+
+/*
+ * SSC PDC registers required by the PCM DMA engine.
+ */
+static struct atmel_pdc_regs pdc_tx_reg = {
+	.xpr		= ATMEL_PDC_TPR,
+	.xcr		= ATMEL_PDC_TCR,
+	.xnpr		= ATMEL_PDC_TNPR,
+	.xncr		= ATMEL_PDC_TNCR,
+};
+
+static struct atmel_pdc_regs pdc_rx_reg = {
+	.xpr		= ATMEL_PDC_RPR,
+	.xcr		= ATMEL_PDC_RCR,
+	.xnpr		= ATMEL_PDC_RNPR,
+	.xncr		= ATMEL_PDC_RNCR,
+};
+
+/*
+ * SSC & PDC status bits for transmit and receive.
+ */
+static struct atmel_ssc_mask ssc_tx_mask = {
+	.ssc_enable	= SSC_BIT(CR_TXEN),
+	.ssc_disable	= SSC_BIT(CR_TXDIS),
+	.ssc_endx	= SSC_BIT(SR_ENDTX),
+	.ssc_endbuf	= SSC_BIT(SR_TXBUFE),
+	.ssc_error	= SSC_BIT(SR_OVRUN),
+	.pdc_enable	= ATMEL_PDC_TXTEN,
+	.pdc_disable	= ATMEL_PDC_TXTDIS,
+};
+
+static struct atmel_ssc_mask ssc_rx_mask = {
+	.ssc_enable	= SSC_BIT(CR_RXEN),
+	.ssc_disable	= SSC_BIT(CR_RXDIS),
+	.ssc_endx	= SSC_BIT(SR_ENDRX),
+	.ssc_endbuf	= SSC_BIT(SR_RXBUFF),
+	.ssc_error	= SSC_BIT(SR_OVRUN),
+	.pdc_enable	= ATMEL_PDC_RXTEN,
+	.pdc_disable	= ATMEL_PDC_RXTDIS,
+};
+
+
+/*
+ * DMA parameters.
+ */
+static struct atmel_pcm_dma_params ssc_dma_params[NUM_SSC_DEVICES][2] = {
+	{{
+	.name		= "SSC0 PCM out",
+	.pdc		= &pdc_tx_reg,
+	.mask		= &ssc_tx_mask,
+	},
+	{
+	.name		= "SSC0 PCM in",
+	.pdc		= &pdc_rx_reg,
+	.mask		= &ssc_rx_mask,
+	} },
+	{{
+	.name		= "SSC1 PCM out",
+	.pdc		= &pdc_tx_reg,
+	.mask		= &ssc_tx_mask,
+	},
+	{
+	.name		= "SSC1 PCM in",
+	.pdc		= &pdc_rx_reg,
+	.mask		= &ssc_rx_mask,
+	} },
+	{{
+	.name		= "SSC2 PCM out",
+	.pdc		= &pdc_tx_reg,
+	.mask		= &ssc_tx_mask,
+	},
+	{
+	.name		= "SSC2 PCM in",
+	.pdc		= &pdc_rx_reg,
+	.mask		= &ssc_rx_mask,
+	} },
+};
+
+
+static struct atmel_ssc_info ssc_info[NUM_SSC_DEVICES] = {
+	{
+	.name		= "ssc0",
+	.dir_mask	= SSC_DIR_MASK_UNUSED,
+	.initialized	= 0,
+	},
+	{
+	.name		= "ssc1",
+	.dir_mask	= SSC_DIR_MASK_UNUSED,
+	.initialized	= 0,
+	},
+	{
+	.name		= "ssc2",
+	.dir_mask	= SSC_DIR_MASK_UNUSED,
+	.initialized	= 0,
+	},
+};
+
+
+/*
+ * SSC interrupt handler.  Passes PDC interrupts to the DMA
+ * interrupt handler in the PCM driver.
+ */
+static irqreturn_t atmel_ssc_interrupt(int irq, void *dev_id)
+{
+	struct atmel_ssc_info *ssc_p = dev_id;
+	struct atmel_pcm_dma_params *dma_params;
+	u32 ssc_sr;
+	u32 ssc_substream_mask;
+	int i;
+
+	ssc_sr = (unsigned long)ssc_readl(ssc_p->ssc->regs, SR)
+			& (unsigned long)ssc_readl(ssc_p->ssc->regs, IMR);
+
+	/*
+	 * Loop through the substreams attached to this SSC.  If
+	 * a DMA-related interrupt occurred on that substream, call
+	 * the DMA interrupt handler function, if one has been
+	 * registered in the dma_params structure by the PCM driver.
+	 */
+	for (i = 0; i < ARRAY_SIZE(ssc_p->dma_params); i++) {
+		dma_params = ssc_p->dma_params[i];
+
+		if ((dma_params != NULL) &&
+			(dma_params->dma_intr_handler != NULL)) {
+			ssc_substream_mask = (dma_params->mask->ssc_endx |
+					dma_params->mask->ssc_endbuf);
+			if (ssc_sr & ssc_substream_mask) {
+				dma_params->dma_intr_handler(ssc_sr,
+						dma_params->
+						substream);
+			}
+		}
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * When the bit clock is input, limit the maximum rate according to the
+ * Serial Clock Ratio Considerations section from the SSC documentation:
+ *
+ *   The Transmitter and the Receiver can be programmed to operate
+ *   with the clock signals provided on either the TK or RK pins.
+ *   This allows the SSC to support many slave-mode data transfers.
+ *   In this case, the maximum clock speed allowed on the RK pin is:
+ *   - Peripheral clock divided by 2 if Receiver Frame Synchro is input
+ *   - Peripheral clock divided by 3 if Receiver Frame Synchro is output
+ *   In addition, the maximum clock speed allowed on the TK pin is:
+ *   - Peripheral clock divided by 6 if Transmit Frame Synchro is input
+ *   - Peripheral clock divided by 2 if Transmit Frame Synchro is output
+ *
+ * When the bit clock is output, limit the rate according to the
+ * SSC divider restrictions.
+ */
+static int atmel_ssc_hw_rule_rate(struct snd_pcm_hw_params *params,
+				  struct snd_pcm_hw_rule *rule)
+{
+	struct atmel_ssc_info *ssc_p = rule->private;
+	struct ssc_device *ssc = ssc_p->ssc;
+	struct snd_interval *i = hw_param_interval(params, rule->var);
+	struct snd_interval t;
+	struct snd_ratnum r = {
+		.den_min = 1,
+		.den_max = 4095,
+		.den_step = 1,
+	};
+	unsigned int num = 0, den = 0;
+	int frame_size;
+	int mck_div = 2;
+	int ret;
+
+	frame_size = snd_soc_params_to_frame_size(params);
+	if (frame_size < 0)
+		return frame_size;
+
+	switch (ssc_p->daifmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BC_FP:
+		if ((ssc_p->dir_mask & SSC_DIR_MASK_CAPTURE)
+		    && ssc->clk_from_rk_pin)
+			/* Receiver Frame Synchro (i.e. capture)
+			 * is output (format is _CFS) and the RK pin
+			 * is used for input (format is _CBM_).
+			 */
+			mck_div = 3;
+		break;
+
+	case SND_SOC_DAIFMT_BC_FC:
+		if ((ssc_p->dir_mask & SSC_DIR_MASK_PLAYBACK)
+		    && !ssc->clk_from_rk_pin)
+			/* Transmit Frame Synchro (i.e. playback)
+			 * is input (format is _CFM) and the TK pin
+			 * is used for input (format _CBM_ but not
+			 * using the RK pin).
+			 */
+			mck_div = 6;
+		break;
+	}
+
+	switch (ssc_p->daifmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BP_FP:
+		r.num = ssc_p->mck_rate / mck_div / frame_size;
+
+		ret = snd_interval_ratnum(i, 1, &r, &num, &den);
+		if (ret >= 0 && den && rule->var == SNDRV_PCM_HW_PARAM_RATE) {
+			params->rate_num = num;
+			params->rate_den = den;
+		}
+		break;
+
+	case SND_SOC_DAIFMT_BC_FP:
+	case SND_SOC_DAIFMT_BC_FC:
+		t.min = 8000;
+		t.max = ssc_p->mck_rate / mck_div / frame_size;
+		t.openmin = t.openmax = 0;
+		t.integer = 0;
+		ret = snd_interval_refine(i, &t);
+		break;
+
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+/*-------------------------------------------------------------------------*\
+ * DAI functions
+\*-------------------------------------------------------------------------*/
+/*
+ * Startup.  Only that one substream allowed in each direction.
+ */
+static int atmel_ssc_startup(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct platform_device *pdev = to_platform_device(dai->dev);
+	struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
+	struct atmel_pcm_dma_params *dma_params;
+	int dir, dir_mask;
+	int ret;
+
+	pr_debug("atmel_ssc_startup: SSC_SR=0x%x\n",
+		ssc_readl(ssc_p->ssc->regs, SR));
+
+	/* Enable PMC peripheral clock for this SSC */
+	pr_debug("atmel_ssc_dai: Starting clock\n");
+	ret = clk_enable(ssc_p->ssc->clk);
+	if (ret)
+		return ret;
+
+	ssc_p->mck_rate = clk_get_rate(ssc_p->ssc->clk);
+
+	/* Reset the SSC unless initialized to keep it in a clean state */
+	if (!ssc_p->initialized)
+		ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_SWRST));
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		dir = 0;
+		dir_mask = SSC_DIR_MASK_PLAYBACK;
+	} else {
+		dir = 1;
+		dir_mask = SSC_DIR_MASK_CAPTURE;
+	}
+
+	ret = snd_pcm_hw_rule_add(substream->runtime, 0,
+				  SNDRV_PCM_HW_PARAM_RATE,
+				  atmel_ssc_hw_rule_rate,
+				  ssc_p,
+				  SNDRV_PCM_HW_PARAM_FRAME_BITS,
+				  SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+	if (ret < 0) {
+		dev_err(dai->dev, "Failed to specify rate rule: %d\n", ret);
+		return ret;
+	}
+
+	dma_params = &ssc_dma_params[pdev->id][dir];
+	dma_params->ssc = ssc_p->ssc;
+	dma_params->substream = substream;
+
+	ssc_p->dma_params[dir] = dma_params;
+
+	snd_soc_dai_set_dma_data(dai, substream, dma_params);
+
+	if (ssc_p->dir_mask & dir_mask)
+		return -EBUSY;
+
+	ssc_p->dir_mask |= dir_mask;
+
+	return 0;
+}
+
+/*
+ * Shutdown.  Clear DMA parameters and shutdown the SSC if there
+ * are no other substreams open.
+ */
+static void atmel_ssc_shutdown(struct snd_pcm_substream *substream,
+			       struct snd_soc_dai *dai)
+{
+	struct platform_device *pdev = to_platform_device(dai->dev);
+	struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
+	struct atmel_pcm_dma_params *dma_params;
+	int dir, dir_mask;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		dir = 0;
+	else
+		dir = 1;
+
+	dma_params = ssc_p->dma_params[dir];
+
+	if (dma_params != NULL) {
+		dma_params->ssc = NULL;
+		dma_params->substream = NULL;
+		ssc_p->dma_params[dir] = NULL;
+	}
+
+	dir_mask = 1 << dir;
+
+	ssc_p->dir_mask &= ~dir_mask;
+	if (!ssc_p->dir_mask) {
+		if (ssc_p->initialized) {
+			free_irq(ssc_p->ssc->irq, ssc_p);
+			ssc_p->initialized = 0;
+		}
+
+		/* Reset the SSC */
+		ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_SWRST));
+		/* Clear the SSC dividers */
+		ssc_p->cmr_div = ssc_p->tcmr_period = ssc_p->rcmr_period = 0;
+		ssc_p->forced_divider = 0;
+	}
+
+	/* Shutdown the SSC clock. */
+	pr_debug("atmel_ssc_dai: Stopping clock\n");
+	clk_disable(ssc_p->ssc->clk);
+}
+
+
+/*
+ * Record the DAI format for use in hw_params().
+ */
+static int atmel_ssc_set_dai_fmt(struct snd_soc_dai *cpu_dai,
+		unsigned int fmt)
+{
+	struct platform_device *pdev = to_platform_device(cpu_dai->dev);
+	struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
+
+	ssc_p->daifmt = fmt;
+	return 0;
+}
+
+/*
+ * Record SSC clock dividers for use in hw_params().
+ */
+static int atmel_ssc_set_dai_clkdiv(struct snd_soc_dai *cpu_dai,
+	int div_id, int div)
+{
+	struct platform_device *pdev = to_platform_device(cpu_dai->dev);
+	struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
+
+	switch (div_id) {
+	case ATMEL_SSC_CMR_DIV:
+		/*
+		 * The same master clock divider is used for both
+		 * transmit and receive, so if a value has already
+		 * been set, it must match this value.
+		 */
+		if (ssc_p->dir_mask !=
+			(SSC_DIR_MASK_PLAYBACK | SSC_DIR_MASK_CAPTURE))
+			ssc_p->cmr_div = div;
+		else if (ssc_p->cmr_div == 0)
+			ssc_p->cmr_div = div;
+		else
+			if (div != ssc_p->cmr_div)
+				return -EBUSY;
+		ssc_p->forced_divider |= BIT(ATMEL_SSC_CMR_DIV);
+		break;
+
+	case ATMEL_SSC_TCMR_PERIOD:
+		ssc_p->tcmr_period = div;
+		ssc_p->forced_divider |= BIT(ATMEL_SSC_TCMR_PERIOD);
+		break;
+
+	case ATMEL_SSC_RCMR_PERIOD:
+		ssc_p->rcmr_period = div;
+		ssc_p->forced_divider |= BIT(ATMEL_SSC_RCMR_PERIOD);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/* Is the cpu-dai master of the frame clock? */
+static int atmel_ssc_cfs(struct atmel_ssc_info *ssc_p)
+{
+	switch (ssc_p->daifmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BC_FP:
+	case SND_SOC_DAIFMT_BP_FP:
+		return 1;
+	}
+	return 0;
+}
+
+/* Is the cpu-dai master of the bit clock? */
+static int atmel_ssc_cbs(struct atmel_ssc_info *ssc_p)
+{
+	switch (ssc_p->daifmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BP_FC:
+	case SND_SOC_DAIFMT_BP_FP:
+		return 1;
+	}
+	return 0;
+}
+
+/*
+ * Configure the SSC.
+ */
+static int atmel_ssc_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params,
+	struct snd_soc_dai *dai)
+{
+	struct platform_device *pdev = to_platform_device(dai->dev);
+	int id = pdev->id;
+	struct atmel_ssc_info *ssc_p = &ssc_info[id];
+	struct ssc_device *ssc = ssc_p->ssc;
+	struct atmel_pcm_dma_params *dma_params;
+	int dir, channels, bits;
+	u32 tfmr, rfmr, tcmr, rcmr;
+	int ret;
+	int fslen, fslen_ext, fs_osync, fs_edge;
+	u32 cmr_div;
+	u32 tcmr_period;
+	u32 rcmr_period;
+
+	/*
+	 * Currently, there is only one set of dma params for
+	 * each direction.  If more are added, this code will
+	 * have to be changed to select the proper set.
+	 */
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		dir = 0;
+	else
+		dir = 1;
+
+	/*
+	 * If the cpu dai should provide BCLK, but noone has provided the
+	 * divider needed for that to work, fall back to something sensible.
+	 */
+	cmr_div = ssc_p->cmr_div;
+	if (!(ssc_p->forced_divider & BIT(ATMEL_SSC_CMR_DIV)) &&
+	    atmel_ssc_cbs(ssc_p)) {
+		int bclk_rate = snd_soc_params_to_bclk(params);
+
+		if (bclk_rate < 0) {
+			dev_err(dai->dev, "unable to calculate cmr_div: %d\n",
+				bclk_rate);
+			return bclk_rate;
+		}
+
+		cmr_div = DIV_ROUND_CLOSEST(ssc_p->mck_rate, 2 * bclk_rate);
+	}
+
+	/*
+	 * If the cpu dai should provide LRCLK, but noone has provided the
+	 * dividers needed for that to work, fall back to something sensible.
+	 */
+	tcmr_period = ssc_p->tcmr_period;
+	rcmr_period = ssc_p->rcmr_period;
+	if (atmel_ssc_cfs(ssc_p)) {
+		int frame_size = snd_soc_params_to_frame_size(params);
+
+		if (frame_size < 0) {
+			dev_err(dai->dev,
+				"unable to calculate tx/rx cmr_period: %d\n",
+				frame_size);
+			return frame_size;
+		}
+
+		if (!(ssc_p->forced_divider & BIT(ATMEL_SSC_TCMR_PERIOD)))
+			tcmr_period = frame_size / 2 - 1;
+		if (!(ssc_p->forced_divider & BIT(ATMEL_SSC_RCMR_PERIOD)))
+			rcmr_period = frame_size / 2 - 1;
+	}
+
+	dma_params = ssc_p->dma_params[dir];
+
+	channels = params_channels(params);
+
+	/*
+	 * Determine sample size in bits and the PDC increment.
+	 */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S8:
+		bits = 8;
+		dma_params->pdc_xfer_size = 1;
+		break;
+	case SNDRV_PCM_FORMAT_S16_LE:
+		bits = 16;
+		dma_params->pdc_xfer_size = 2;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		bits = 24;
+		dma_params->pdc_xfer_size = 4;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		bits = 32;
+		dma_params->pdc_xfer_size = 4;
+		break;
+	default:
+		printk(KERN_WARNING "atmel_ssc_dai: unsupported PCM format");
+		return -EINVAL;
+	}
+
+	/*
+	 * Compute SSC register settings.
+	 */
+
+	fslen_ext = (bits - 1) / 16;
+	fslen = (bits - 1) % 16;
+
+	switch (ssc_p->daifmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+
+	case SND_SOC_DAIFMT_LEFT_J:
+		fs_osync = SSC_FSOS_POSITIVE;
+		fs_edge = SSC_START_RISING_RF;
+
+		rcmr =	  SSC_BF(RCMR_STTDLY, 0);
+		tcmr =	  SSC_BF(TCMR_STTDLY, 0);
+
+		break;
+
+	case SND_SOC_DAIFMT_I2S:
+		fs_osync = SSC_FSOS_NEGATIVE;
+		fs_edge = SSC_START_FALLING_RF;
+
+		rcmr =	  SSC_BF(RCMR_STTDLY, 1);
+		tcmr =	  SSC_BF(TCMR_STTDLY, 1);
+
+		break;
+
+	case SND_SOC_DAIFMT_DSP_A:
+		/*
+		 * DSP/PCM Mode A format
+		 *
+		 * Data is transferred on first BCLK after LRC pulse rising
+		 * edge.If stereo, the right channel data is contiguous with
+		 * the left channel data.
+		 */
+		fs_osync = SSC_FSOS_POSITIVE;
+		fs_edge = SSC_START_RISING_RF;
+		fslen = fslen_ext = 0;
+
+		rcmr =	  SSC_BF(RCMR_STTDLY, 1);
+		tcmr =	  SSC_BF(TCMR_STTDLY, 1);
+
+		break;
+
+	default:
+		printk(KERN_WARNING "atmel_ssc_dai: unsupported DAI format 0x%x\n",
+			ssc_p->daifmt);
+		return -EINVAL;
+	}
+
+	if (!atmel_ssc_cfs(ssc_p)) {
+		fslen = fslen_ext = 0;
+		rcmr_period = tcmr_period = 0;
+		fs_osync = SSC_FSOS_NONE;
+	}
+
+	rcmr |=	  SSC_BF(RCMR_START, fs_edge);
+	tcmr |=	  SSC_BF(TCMR_START, fs_edge);
+
+	if (atmel_ssc_cbs(ssc_p)) {
+		/*
+		 * SSC provides BCLK
+		 *
+		 * The SSC transmit and receive clocks are generated from the
+		 * MCK divider, and the BCLK signal is output
+		 * on the SSC TK line.
+		 */
+		rcmr |=	  SSC_BF(RCMR_CKS, SSC_CKS_DIV)
+			| SSC_BF(RCMR_CKO, SSC_CKO_NONE);
+
+		tcmr |=	  SSC_BF(TCMR_CKS, SSC_CKS_DIV)
+			| SSC_BF(TCMR_CKO, SSC_CKO_CONTINUOUS);
+	} else {
+		rcmr |=	  SSC_BF(RCMR_CKS, ssc->clk_from_rk_pin ?
+					SSC_CKS_PIN : SSC_CKS_CLOCK)
+			| SSC_BF(RCMR_CKO, SSC_CKO_NONE);
+
+		tcmr |=	  SSC_BF(TCMR_CKS, ssc->clk_from_rk_pin ?
+					SSC_CKS_CLOCK : SSC_CKS_PIN)
+			| SSC_BF(TCMR_CKO, SSC_CKO_NONE);
+	}
+
+	rcmr |=	  SSC_BF(RCMR_PERIOD, rcmr_period)
+		| SSC_BF(RCMR_CKI, SSC_CKI_RISING);
+
+	tcmr |=   SSC_BF(TCMR_PERIOD, tcmr_period)
+		| SSC_BF(TCMR_CKI, SSC_CKI_FALLING);
+
+	rfmr =    SSC_BF(RFMR_FSLEN_EXT, fslen_ext)
+		| SSC_BF(RFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
+		| SSC_BF(RFMR_FSOS, fs_osync)
+		| SSC_BF(RFMR_FSLEN, fslen)
+		| SSC_BF(RFMR_DATNB, (channels - 1))
+		| SSC_BIT(RFMR_MSBF)
+		| SSC_BF(RFMR_LOOP, 0)
+		| SSC_BF(RFMR_DATLEN, (bits - 1));
+
+	tfmr =    SSC_BF(TFMR_FSLEN_EXT, fslen_ext)
+		| SSC_BF(TFMR_FSEDGE, SSC_FSEDGE_POSITIVE)
+		| SSC_BF(TFMR_FSDEN, 0)
+		| SSC_BF(TFMR_FSOS, fs_osync)
+		| SSC_BF(TFMR_FSLEN, fslen)
+		| SSC_BF(TFMR_DATNB, (channels - 1))
+		| SSC_BIT(TFMR_MSBF)
+		| SSC_BF(TFMR_DATDEF, 0)
+		| SSC_BF(TFMR_DATLEN, (bits - 1));
+
+	if (fslen_ext && !ssc->pdata->has_fslen_ext) {
+		dev_err(dai->dev, "sample size %d is too large for SSC device\n",
+			bits);
+		return -EINVAL;
+	}
+
+	pr_debug("atmel_ssc_hw_params: "
+			"RCMR=%08x RFMR=%08x TCMR=%08x TFMR=%08x\n",
+			rcmr, rfmr, tcmr, tfmr);
+
+	if (!ssc_p->initialized) {
+		if (!ssc_p->ssc->pdata->use_dma) {
+			ssc_writel(ssc_p->ssc->regs, PDC_RPR, 0);
+			ssc_writel(ssc_p->ssc->regs, PDC_RCR, 0);
+			ssc_writel(ssc_p->ssc->regs, PDC_RNPR, 0);
+			ssc_writel(ssc_p->ssc->regs, PDC_RNCR, 0);
+
+			ssc_writel(ssc_p->ssc->regs, PDC_TPR, 0);
+			ssc_writel(ssc_p->ssc->regs, PDC_TCR, 0);
+			ssc_writel(ssc_p->ssc->regs, PDC_TNPR, 0);
+			ssc_writel(ssc_p->ssc->regs, PDC_TNCR, 0);
+		}
+
+		ret = request_irq(ssc_p->ssc->irq, atmel_ssc_interrupt, 0,
+				ssc_p->name, ssc_p);
+		if (ret < 0) {
+			printk(KERN_WARNING
+					"atmel_ssc_dai: request_irq failure\n");
+			pr_debug("Atmel_ssc_dai: Stopping clock\n");
+			clk_disable(ssc_p->ssc->clk);
+			return ret;
+		}
+
+		ssc_p->initialized = 1;
+	}
+
+	/* set SSC clock mode register */
+	ssc_writel(ssc_p->ssc->regs, CMR, cmr_div);
+
+	/* set receive clock mode and format */
+	ssc_writel(ssc_p->ssc->regs, RCMR, rcmr);
+	ssc_writel(ssc_p->ssc->regs, RFMR, rfmr);
+
+	/* set transmit clock mode and format */
+	ssc_writel(ssc_p->ssc->regs, TCMR, tcmr);
+	ssc_writel(ssc_p->ssc->regs, TFMR, tfmr);
+
+	pr_debug("atmel_ssc_dai,hw_params: SSC initialized\n");
+	return 0;
+}
+
+
+static int atmel_ssc_prepare(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct platform_device *pdev = to_platform_device(dai->dev);
+	struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
+	struct atmel_pcm_dma_params *dma_params;
+	int dir;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		dir = 0;
+	else
+		dir = 1;
+
+	dma_params = ssc_p->dma_params[dir];
+
+	ssc_writel(ssc_p->ssc->regs, CR, dma_params->mask->ssc_disable);
+	ssc_writel(ssc_p->ssc->regs, IDR, dma_params->mask->ssc_error);
+
+	pr_debug("%s enabled SSC_SR=0x%08x\n",
+			dir ? "receive" : "transmit",
+			ssc_readl(ssc_p->ssc->regs, SR));
+	return 0;
+}
+
+static int atmel_ssc_trigger(struct snd_pcm_substream *substream,
+			     int cmd, struct snd_soc_dai *dai)
+{
+	struct platform_device *pdev = to_platform_device(dai->dev);
+	struct atmel_ssc_info *ssc_p = &ssc_info[pdev->id];
+	struct atmel_pcm_dma_params *dma_params;
+	int dir;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		dir = 0;
+	else
+		dir = 1;
+
+	dma_params = ssc_p->dma_params[dir];
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		ssc_writel(ssc_p->ssc->regs, CR, dma_params->mask->ssc_enable);
+		break;
+	default:
+		ssc_writel(ssc_p->ssc->regs, CR, dma_params->mask->ssc_disable);
+		break;
+	}
+
+	return 0;
+}
+
+static int atmel_ssc_suspend(struct snd_soc_component *component)
+{
+	struct atmel_ssc_info *ssc_p;
+	struct platform_device *pdev = to_platform_device(component->dev);
+
+	if (!snd_soc_component_active(component))
+		return 0;
+
+	ssc_p = &ssc_info[pdev->id];
+
+	/* Save the status register before disabling transmit and receive */
+	ssc_p->ssc_state.ssc_sr = ssc_readl(ssc_p->ssc->regs, SR);
+	ssc_writel(ssc_p->ssc->regs, CR, SSC_BIT(CR_TXDIS) | SSC_BIT(CR_RXDIS));
+
+	/* Save the current interrupt mask, then disable unmasked interrupts */
+	ssc_p->ssc_state.ssc_imr = ssc_readl(ssc_p->ssc->regs, IMR);
+	ssc_writel(ssc_p->ssc->regs, IDR, ssc_p->ssc_state.ssc_imr);
+
+	ssc_p->ssc_state.ssc_cmr = ssc_readl(ssc_p->ssc->regs, CMR);
+	ssc_p->ssc_state.ssc_rcmr = ssc_readl(ssc_p->ssc->regs, RCMR);
+	ssc_p->ssc_state.ssc_rfmr = ssc_readl(ssc_p->ssc->regs, RFMR);
+	ssc_p->ssc_state.ssc_tcmr = ssc_readl(ssc_p->ssc->regs, TCMR);
+	ssc_p->ssc_state.ssc_tfmr = ssc_readl(ssc_p->ssc->regs, TFMR);
+
+	return 0;
+}
+
+static int atmel_ssc_resume(struct snd_soc_component *component)
+{
+	struct atmel_ssc_info *ssc_p;
+	struct platform_device *pdev = to_platform_device(component->dev);
+	u32 cr;
+
+	if (!snd_soc_component_active(component))
+		return 0;
+
+	ssc_p = &ssc_info[pdev->id];
+
+	/* restore SSC register settings */
+	ssc_writel(ssc_p->ssc->regs, TFMR, ssc_p->ssc_state.ssc_tfmr);
+	ssc_writel(ssc_p->ssc->regs, TCMR, ssc_p->ssc_state.ssc_tcmr);
+	ssc_writel(ssc_p->ssc->regs, RFMR, ssc_p->ssc_state.ssc_rfmr);
+	ssc_writel(ssc_p->ssc->regs, RCMR, ssc_p->ssc_state.ssc_rcmr);
+	ssc_writel(ssc_p->ssc->regs, CMR, ssc_p->ssc_state.ssc_cmr);
+
+	/* re-enable interrupts */
+	ssc_writel(ssc_p->ssc->regs, IER, ssc_p->ssc_state.ssc_imr);
+
+	/* Re-enable receive and transmit as appropriate */
+	cr = 0;
+	cr |=
+	    (ssc_p->ssc_state.ssc_sr & SSC_BIT(SR_RXEN)) ? SSC_BIT(CR_RXEN) : 0;
+	cr |=
+	    (ssc_p->ssc_state.ssc_sr & SSC_BIT(SR_TXEN)) ? SSC_BIT(CR_TXEN) : 0;
+	ssc_writel(ssc_p->ssc->regs, CR, cr);
+
+	return 0;
+}
+
+#define ATMEL_SSC_FORMATS (SNDRV_PCM_FMTBIT_S8     | SNDRV_PCM_FMTBIT_S16_LE |\
+			  SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
+
+static const struct snd_soc_dai_ops atmel_ssc_dai_ops = {
+	.startup	= atmel_ssc_startup,
+	.shutdown	= atmel_ssc_shutdown,
+	.prepare	= atmel_ssc_prepare,
+	.trigger	= atmel_ssc_trigger,
+	.hw_params	= atmel_ssc_hw_params,
+	.set_fmt	= atmel_ssc_set_dai_fmt,
+	.set_clkdiv	= atmel_ssc_set_dai_clkdiv,
+};
+
+static struct snd_soc_dai_driver atmel_ssc_dai = {
+		.playback = {
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_CONTINUOUS,
+			.rate_min = 8000,
+			.rate_max = 384000,
+			.formats = ATMEL_SSC_FORMATS,},
+		.capture = {
+			.channels_min = 1,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_CONTINUOUS,
+			.rate_min = 8000,
+			.rate_max = 384000,
+			.formats = ATMEL_SSC_FORMATS,},
+		.ops = &atmel_ssc_dai_ops,
+};
+
+static const struct snd_soc_component_driver atmel_ssc_component = {
+	.name			= "atmel-ssc",
+	.suspend		= pm_ptr(atmel_ssc_suspend),
+	.resume			= pm_ptr(atmel_ssc_resume),
+	.legacy_dai_naming	= 1,
+};
+
+static int asoc_ssc_init(struct device *dev)
+{
+	struct ssc_device *ssc = dev_get_drvdata(dev);
+	int ret;
+
+	ret = devm_snd_soc_register_component(dev, &atmel_ssc_component,
+					 &atmel_ssc_dai, 1);
+	if (ret) {
+		dev_err(dev, "Could not register DAI: %d\n", ret);
+		return ret;
+	}
+
+	if (ssc->pdata->use_dma)
+		ret = atmel_pcm_dma_platform_register(dev);
+	else
+		ret = atmel_pcm_pdc_platform_register(dev);
+
+	if (ret) {
+		dev_err(dev, "Could not register PCM: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * atmel_ssc_set_audio - Allocate the specified SSC for audio use.
+ * @ssc_id: SSD ID in [0, NUM_SSC_DEVICES[
+ */
+int atmel_ssc_set_audio(int ssc_id)
+{
+	struct ssc_device *ssc;
+
+	/* If we can grab the SSC briefly to parent the DAI device off it */
+	ssc = ssc_request(ssc_id);
+	if (IS_ERR(ssc)) {
+		pr_err("Unable to parent ASoC SSC DAI on SSC: %ld\n",
+			PTR_ERR(ssc));
+		return PTR_ERR(ssc);
+	} else {
+		ssc_info[ssc_id].ssc = ssc;
+	}
+
+	return asoc_ssc_init(&ssc->pdev->dev);
+}
+EXPORT_SYMBOL_GPL(atmel_ssc_set_audio);
+
+void atmel_ssc_put_audio(int ssc_id)
+{
+	struct ssc_device *ssc = ssc_info[ssc_id].ssc;
+
+	ssc_free(ssc);
+}
+EXPORT_SYMBOL_GPL(atmel_ssc_put_audio);
+
+/* Module information */
+MODULE_AUTHOR("Sedji Gaouaou, sedji.gaouaou@atmel.com, www.atmel.com");
+MODULE_DESCRIPTION("ATMEL SSC ASoC Interface");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/atmel_ssc_dai.h b/sound/soc/atmel/atmel_ssc_dai.h
new file mode 100644
index 000000000..3470b966e
--- /dev/null
+++ b/sound/soc/atmel/atmel_ssc_dai.h
@@ -0,0 +1,111 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * atmel_ssc_dai.h - ALSA SSC interface for the Atmel  SoC
+ *
+ * Copyright (C) 2005 SAN People
+ * Copyright (C) 2008 Atmel
+ *
+ * Author: Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ *         ATMEL CORP.
+ *
+ * Based on at91-ssc.c by
+ * Frank Mandarino <fmandarino@endrelia.com>
+ * Based on pxa2xx Platform drivers by
+ * Liam Girdwood <lrg@slimlogic.co.uk>
+ */
+
+#ifndef _ATMEL_SSC_DAI_H
+#define _ATMEL_SSC_DAI_H
+
+#include <linux/types.h>
+#include <linux/atmel-ssc.h>
+
+#include "atmel-pcm.h"
+
+/* SSC system clock ids */
+#define ATMEL_SYSCLK_MCK	0 /* SSC uses AT91 MCK as system clock */
+
+/* SSC divider ids */
+#define ATMEL_SSC_CMR_DIV	0 /* MCK divider for BCLK */
+#define ATMEL_SSC_TCMR_PERIOD	1 /* BCLK divider for transmit FS */
+#define ATMEL_SSC_RCMR_PERIOD	2 /* BCLK divider for receive FS */
+/*
+ * SSC direction masks
+ */
+#define SSC_DIR_MASK_UNUSED	0
+#define SSC_DIR_MASK_PLAYBACK	1
+#define SSC_DIR_MASK_CAPTURE	2
+
+/*
+ * SSC register values that Atmel left out of <linux/atmel-ssc.h>.  These
+ * are expected to be used with SSC_BF
+ */
+/* START bit field values */
+#define SSC_START_CONTINUOUS	0
+#define SSC_START_TX_RX		1
+#define SSC_START_LOW_RF	2
+#define SSC_START_HIGH_RF	3
+#define SSC_START_FALLING_RF	4
+#define SSC_START_RISING_RF	5
+#define SSC_START_LEVEL_RF	6
+#define SSC_START_EDGE_RF	7
+#define SSS_START_COMPARE_0	8
+
+/* CKI bit field values */
+#define SSC_CKI_FALLING		0
+#define SSC_CKI_RISING		1
+
+/* CKO bit field values */
+#define SSC_CKO_NONE		0
+#define SSC_CKO_CONTINUOUS	1
+#define SSC_CKO_TRANSFER	2
+
+/* CKS bit field values */
+#define SSC_CKS_DIV		0
+#define SSC_CKS_CLOCK		1
+#define SSC_CKS_PIN		2
+
+/* FSEDGE bit field values */
+#define SSC_FSEDGE_POSITIVE	0
+#define SSC_FSEDGE_NEGATIVE	1
+
+/* FSOS bit field values */
+#define SSC_FSOS_NONE		0
+#define SSC_FSOS_NEGATIVE	1
+#define SSC_FSOS_POSITIVE	2
+#define SSC_FSOS_LOW		3
+#define SSC_FSOS_HIGH		4
+#define SSC_FSOS_TOGGLE		5
+
+#define START_DELAY		1
+
+struct atmel_ssc_state {
+	u32 ssc_cmr;
+	u32 ssc_rcmr;
+	u32 ssc_rfmr;
+	u32 ssc_tcmr;
+	u32 ssc_tfmr;
+	u32 ssc_sr;
+	u32 ssc_imr;
+};
+
+
+struct atmel_ssc_info {
+	char *name;
+	struct ssc_device *ssc;
+	unsigned short dir_mask;	/* 0=unused, 1=playback, 2=capture */
+	unsigned short initialized;	/* true if SSC has been initialized */
+	unsigned short daifmt;
+	unsigned short cmr_div;
+	unsigned short tcmr_period;
+	unsigned short rcmr_period;
+	unsigned int forced_divider;
+	struct atmel_pcm_dma_params *dma_params[2];
+	struct atmel_ssc_state ssc_state;
+	unsigned long mck_rate;
+};
+
+int atmel_ssc_set_audio(int ssc_id);
+void atmel_ssc_put_audio(int ssc_id);
+
+#endif /* _AT91_SSC_DAI_H */
diff --git a/sound/soc/atmel/atmel_wm8904.c b/sound/soc/atmel/atmel_wm8904.c
new file mode 100644
index 000000000..9c974c4e1
--- /dev/null
+++ b/sound/soc/atmel/atmel_wm8904.c
@@ -0,0 +1,201 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * atmel_wm8904 - Atmel ASoC driver for boards with WM8904 codec.
+ *
+ * Copyright (C) 2012 Atmel
+ *
+ * Author: Bo Shen <voice.shen@atmel.com>
+ */
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+#include <sound/soc.h>
+
+#include "../codecs/wm8904.h"
+#include "atmel_ssc_dai.h"
+
+static const struct snd_soc_dapm_widget atmel_asoc_wm8904_dapm_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Mic", NULL),
+	SND_SOC_DAPM_LINE("Line In Jack", NULL),
+};
+
+static int atmel_asoc_wm8904_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);
+	int ret;
+
+	ret = snd_soc_dai_set_pll(codec_dai, WM8904_FLL_MCLK, WM8904_FLL_MCLK,
+		32768, params_rate(params) * 256);
+	if (ret < 0) {
+		pr_err("%s - failed to set wm8904 codec PLL.", __func__);
+		return ret;
+	}
+
+	/*
+	 * As here wm8904 use FLL output as its system clock
+	 * so calling set_sysclk won't care freq parameter
+	 * then we pass 0
+	 */
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8904_CLK_FLL,
+			0, SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		pr_err("%s -failed to set wm8904 SYSCLK\n", __func__);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_ops atmel_asoc_wm8904_ops = {
+	.hw_params = atmel_asoc_wm8904_hw_params,
+};
+
+SND_SOC_DAILINK_DEFS(pcm,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8904-hifi")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link atmel_asoc_wm8904_dailink = {
+	.name = "WM8904",
+	.stream_name = "WM8904 PCM",
+	.dai_fmt = SND_SOC_DAIFMT_I2S
+		| SND_SOC_DAIFMT_NB_NF
+		| SND_SOC_DAIFMT_CBP_CFP,
+	.ops = &atmel_asoc_wm8904_ops,
+	SND_SOC_DAILINK_REG(pcm),
+};
+
+static struct snd_soc_card atmel_asoc_wm8904_card = {
+	.name = "atmel_asoc_wm8904",
+	.owner = THIS_MODULE,
+	.dai_link = &atmel_asoc_wm8904_dailink,
+	.num_links = 1,
+	.dapm_widgets = atmel_asoc_wm8904_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(atmel_asoc_wm8904_dapm_widgets),
+	.fully_routed = true,
+};
+
+static int atmel_asoc_wm8904_dt_init(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *codec_np, *cpu_np;
+	struct snd_soc_card *card = &atmel_asoc_wm8904_card;
+	struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
+	int ret;
+
+	if (!np) {
+		dev_err(&pdev->dev, "only device tree supported\n");
+		return -EINVAL;
+	}
+
+	ret = snd_soc_of_parse_card_name(card, "atmel,model");
+	if (ret) {
+		dev_err(&pdev->dev, "failed to parse card name\n");
+		return ret;
+	}
+
+	ret = snd_soc_of_parse_audio_routing(card, "atmel,audio-routing");
+	if (ret) {
+		dev_err(&pdev->dev, "failed to parse audio routing\n");
+		return ret;
+	}
+
+	cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
+	if (!cpu_np) {
+		dev_err(&pdev->dev, "failed to get dai and pcm info\n");
+		ret = -EINVAL;
+		return ret;
+	}
+	dailink->cpus->of_node = cpu_np;
+	dailink->platforms->of_node = cpu_np;
+	of_node_put(cpu_np);
+
+	codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
+	if (!codec_np) {
+		dev_err(&pdev->dev, "failed to get codec info\n");
+		ret = -EINVAL;
+		return ret;
+	}
+	dailink->codecs->of_node = codec_np;
+	of_node_put(codec_np);
+
+	return 0;
+}
+
+static int atmel_asoc_wm8904_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &atmel_asoc_wm8904_card;
+	struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
+	int id, ret;
+
+	card->dev = &pdev->dev;
+	ret = atmel_asoc_wm8904_dt_init(pdev);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to init dt info\n");
+		return ret;
+	}
+
+	id = of_alias_get_id((struct device_node *)dailink->cpus->of_node, "ssc");
+	ret = atmel_ssc_set_audio(id);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "failed to set SSC %d for audio\n", id);
+		return ret;
+	}
+
+	ret = snd_soc_register_card(card);
+	if (ret) {
+		dev_err(&pdev->dev, "snd_soc_register_card failed\n");
+		goto err_set_audio;
+	}
+
+	return 0;
+
+err_set_audio:
+	atmel_ssc_put_audio(id);
+	return ret;
+}
+
+static int atmel_asoc_wm8904_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
+	int id;
+
+	id = of_alias_get_id((struct device_node *)dailink->cpus->of_node, "ssc");
+
+	snd_soc_unregister_card(card);
+	atmel_ssc_put_audio(id);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id atmel_asoc_wm8904_dt_ids[] = {
+	{ .compatible = "atmel,asoc-wm8904", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, atmel_asoc_wm8904_dt_ids);
+#endif
+
+static struct platform_driver atmel_asoc_wm8904_driver = {
+	.driver = {
+		.name = "atmel-wm8904-audio",
+		.of_match_table = of_match_ptr(atmel_asoc_wm8904_dt_ids),
+		.pm		= &snd_soc_pm_ops,
+	},
+	.probe = atmel_asoc_wm8904_probe,
+	.remove = atmel_asoc_wm8904_remove,
+};
+
+module_platform_driver(atmel_asoc_wm8904_driver);
+
+/* Module information */
+MODULE_AUTHOR("Bo Shen <voice.shen@atmel.com>");
+MODULE_DESCRIPTION("ALSA SoC machine driver for Atmel EK with WM8904 codec");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/mchp-i2s-mcc.c b/sound/soc/atmel/mchp-i2s-mcc.c
new file mode 100644
index 000000000..6dfb96c57
--- /dev/null
+++ b/sound/soc/atmel/mchp-i2s-mcc.c
@@ -0,0 +1,1112 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Driver for Microchip I2S Multi-channel controller
+//
+// Copyright (C) 2018 Microchip Technology Inc. and its subsidiaries
+//
+// Author: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/mfd/syscon.h>
+#include <linux/lcm.h>
+#include <linux/of_device.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>
+
+/*
+ * ---- I2S Controller Register map ----
+ */
+#define MCHP_I2SMCC_CR		0x0000	/* Control Register */
+#define MCHP_I2SMCC_MRA		0x0004	/* Mode Register A */
+#define MCHP_I2SMCC_MRB		0x0008	/* Mode Register B */
+#define MCHP_I2SMCC_SR		0x000C	/* Status Register */
+#define MCHP_I2SMCC_IERA	0x0010	/* Interrupt Enable Register A */
+#define MCHP_I2SMCC_IDRA	0x0014	/* Interrupt Disable Register A */
+#define MCHP_I2SMCC_IMRA	0x0018	/* Interrupt Mask Register A */
+#define MCHP_I2SMCC_ISRA	0X001C	/* Interrupt Status Register A */
+
+#define MCHP_I2SMCC_IERB	0x0020	/* Interrupt Enable Register B */
+#define MCHP_I2SMCC_IDRB	0x0024	/* Interrupt Disable Register B */
+#define MCHP_I2SMCC_IMRB	0x0028	/* Interrupt Mask Register B */
+#define MCHP_I2SMCC_ISRB	0X002C	/* Interrupt Status Register B */
+
+#define MCHP_I2SMCC_RHR		0x0030	/* Receiver Holding Register */
+#define MCHP_I2SMCC_THR		0x0034	/* Transmitter Holding Register */
+
+#define MCHP_I2SMCC_RHL0R	0x0040	/* Receiver Holding Left 0 Register */
+#define MCHP_I2SMCC_RHR0R	0x0044	/* Receiver Holding Right 0 Register */
+
+#define MCHP_I2SMCC_RHL1R	0x0048	/* Receiver Holding Left 1 Register */
+#define MCHP_I2SMCC_RHR1R	0x004C	/* Receiver Holding Right 1 Register */
+
+#define MCHP_I2SMCC_RHL2R	0x0050	/* Receiver Holding Left 2 Register */
+#define MCHP_I2SMCC_RHR2R	0x0054	/* Receiver Holding Right 2 Register */
+
+#define MCHP_I2SMCC_RHL3R	0x0058	/* Receiver Holding Left 3 Register */
+#define MCHP_I2SMCC_RHR3R	0x005C	/* Receiver Holding Right 3 Register */
+
+#define MCHP_I2SMCC_THL0R	0x0060	/* Transmitter Holding Left 0 Register */
+#define MCHP_I2SMCC_THR0R	0x0064	/* Transmitter Holding Right 0 Register */
+
+#define MCHP_I2SMCC_THL1R	0x0068	/* Transmitter Holding Left 1 Register */
+#define MCHP_I2SMCC_THR1R	0x006C	/* Transmitter Holding Right 1 Register */
+
+#define MCHP_I2SMCC_THL2R	0x0070	/* Transmitter Holding Left 2 Register */
+#define MCHP_I2SMCC_THR2R	0x0074	/* Transmitter Holding Right 2 Register */
+
+#define MCHP_I2SMCC_THL3R	0x0078	/* Transmitter Holding Left 3 Register */
+#define MCHP_I2SMCC_THR3R	0x007C	/* Transmitter Holding Right 3 Register */
+
+#define MCHP_I2SMCC_VERSION	0x00FC	/* Version Register */
+
+/*
+ * ---- Control Register (Write-only) ----
+ */
+#define MCHP_I2SMCC_CR_RXEN		BIT(0)	/* Receiver Enable */
+#define MCHP_I2SMCC_CR_RXDIS		BIT(1)	/* Receiver Disable */
+#define MCHP_I2SMCC_CR_CKEN		BIT(2)	/* Clock Enable */
+#define MCHP_I2SMCC_CR_CKDIS		BIT(3)	/* Clock Disable */
+#define MCHP_I2SMCC_CR_TXEN		BIT(4)	/* Transmitter Enable */
+#define MCHP_I2SMCC_CR_TXDIS		BIT(5)	/* Transmitter Disable */
+#define MCHP_I2SMCC_CR_SWRST		BIT(7)	/* Software Reset */
+
+/*
+ * ---- Mode Register A (Read/Write) ----
+ */
+#define MCHP_I2SMCC_MRA_MODE_MASK		GENMASK(0, 0)
+#define MCHP_I2SMCC_MRA_MODE_SLAVE		(0 << 0)
+#define MCHP_I2SMCC_MRA_MODE_MASTER		(1 << 0)
+
+#define MCHP_I2SMCC_MRA_DATALENGTH_MASK			GENMASK(3, 1)
+#define MCHP_I2SMCC_MRA_DATALENGTH_32_BITS		(0 << 1)
+#define MCHP_I2SMCC_MRA_DATALENGTH_24_BITS		(1 << 1)
+#define MCHP_I2SMCC_MRA_DATALENGTH_20_BITS		(2 << 1)
+#define MCHP_I2SMCC_MRA_DATALENGTH_18_BITS		(3 << 1)
+#define MCHP_I2SMCC_MRA_DATALENGTH_16_BITS		(4 << 1)
+#define MCHP_I2SMCC_MRA_DATALENGTH_16_BITS_COMPACT	(5 << 1)
+#define MCHP_I2SMCC_MRA_DATALENGTH_8_BITS		(6 << 1)
+#define MCHP_I2SMCC_MRA_DATALENGTH_8_BITS_COMPACT	(7 << 1)
+
+#define MCHP_I2SMCC_MRA_WIRECFG_MASK		GENMASK(5, 4)
+#define MCHP_I2SMCC_MRA_WIRECFG_TDM(pin)	(((pin) << 4) & \
+						 MCHP_I2SMCC_MRA_WIRECFG_MASK)
+#define MCHP_I2SMCC_MRA_WIRECFG_I2S_1_TDM_0	(0 << 4)
+#define MCHP_I2SMCC_MRA_WIRECFG_I2S_2_TDM_1	(1 << 4)
+#define MCHP_I2SMCC_MRA_WIRECFG_I2S_4_TDM_2	(2 << 4)
+#define MCHP_I2SMCC_MRA_WIRECFG_TDM_3		(3 << 4)
+
+#define MCHP_I2SMCC_MRA_FORMAT_MASK		GENMASK(7, 6)
+#define MCHP_I2SMCC_MRA_FORMAT_I2S		(0 << 6)
+#define MCHP_I2SMCC_MRA_FORMAT_LJ		(1 << 6) /* Left Justified */
+#define MCHP_I2SMCC_MRA_FORMAT_TDM		(2 << 6)
+#define MCHP_I2SMCC_MRA_FORMAT_TDMLJ		(3 << 6)
+
+/* Transmitter uses one DMA channel ... */
+/* Left audio samples duplicated to right audio channel */
+#define MCHP_I2SMCC_MRA_RXMONO			BIT(8)
+
+/* I2SDO output of I2SC is internally connected to I2SDI input */
+#define MCHP_I2SMCC_MRA_RXLOOP			BIT(9)
+
+/* Receiver uses one DMA channel ... */
+/* Left audio samples duplicated to right audio channel */
+#define MCHP_I2SMCC_MRA_TXMONO			BIT(10)
+
+/* x sample transmitted when underrun */
+#define MCHP_I2SMCC_MRA_TXSAME_ZERO		(0 << 11) /* Zero sample */
+#define MCHP_I2SMCC_MRA_TXSAME_PREVIOUS		(1 << 11) /* Previous sample */
+
+/* select between peripheral clock and generated clock */
+#define MCHP_I2SMCC_MRA_SRCCLK_PCLK		(0 << 12)
+#define MCHP_I2SMCC_MRA_SRCCLK_GCLK		(1 << 12)
+
+/* Number of TDM Channels - 1 */
+#define MCHP_I2SMCC_MRA_NBCHAN_MASK		GENMASK(15, 13)
+#define MCHP_I2SMCC_MRA_NBCHAN(ch) \
+	((((ch) - 1) << 13) & MCHP_I2SMCC_MRA_NBCHAN_MASK)
+
+/* Selected Clock to I2SMCC Master Clock ratio */
+#define MCHP_I2SMCC_MRA_IMCKDIV_MASK		GENMASK(21, 16)
+#define MCHP_I2SMCC_MRA_IMCKDIV(div) \
+	(((div) << 16) & MCHP_I2SMCC_MRA_IMCKDIV_MASK)
+
+/* TDM Frame Synchronization */
+#define MCHP_I2SMCC_MRA_TDMFS_MASK		GENMASK(23, 22)
+#define MCHP_I2SMCC_MRA_TDMFS_SLOT		(0 << 22)
+#define MCHP_I2SMCC_MRA_TDMFS_HALF		(1 << 22)
+#define MCHP_I2SMCC_MRA_TDMFS_BIT		(2 << 22)
+
+/* Selected Clock to I2SMC Serial Clock ratio */
+#define MCHP_I2SMCC_MRA_ISCKDIV_MASK		GENMASK(29, 24)
+#define MCHP_I2SMCC_MRA_ISCKDIV(div) \
+	(((div) << 24) & MCHP_I2SMCC_MRA_ISCKDIV_MASK)
+
+/* Master Clock mode */
+#define MCHP_I2SMCC_MRA_IMCKMODE_MASK		GENMASK(30, 30)
+/* 0: No master clock generated*/
+#define MCHP_I2SMCC_MRA_IMCKMODE_NONE		(0 << 30)
+/* 1: master clock generated (internally generated clock drives I2SMCK pin) */
+#define MCHP_I2SMCC_MRA_IMCKMODE_GEN		(1 << 30)
+
+/* Slot Width */
+/* 0: slot is 32 bits wide for DATALENGTH = 18/20/24 bits. */
+/* 1: slot is 24 bits wide for DATALENGTH = 18/20/24 bits. */
+#define MCHP_I2SMCC_MRA_IWS			BIT(31)
+
+/*
+ * ---- Mode Register B (Read/Write) ----
+ */
+/* all enabled I2S left channels are filled first, then I2S right channels */
+#define MCHP_I2SMCC_MRB_CRAMODE_LEFT_FIRST	(0 << 0)
+/*
+ * an enabled I2S left channel is filled, then the corresponding right
+ * channel, until all channels are filled
+ */
+#define MCHP_I2SMCC_MRB_CRAMODE_REGULAR		(1 << 0)
+
+#define MCHP_I2SMCC_MRB_FIFOEN			BIT(4)
+
+#define MCHP_I2SMCC_MRB_DMACHUNK_MASK		GENMASK(9, 8)
+#define MCHP_I2SMCC_MRB_DMACHUNK(no_words) \
+	(((fls(no_words) - 1) << 8) & MCHP_I2SMCC_MRB_DMACHUNK_MASK)
+
+#define MCHP_I2SMCC_MRB_CLKSEL_MASK		GENMASK(16, 16)
+#define MCHP_I2SMCC_MRB_CLKSEL_EXT		(0 << 16)
+#define MCHP_I2SMCC_MRB_CLKSEL_INT		(1 << 16)
+
+/*
+ * ---- Status Registers (Read-only) ----
+ */
+#define MCHP_I2SMCC_SR_RXEN		BIT(0)	/* Receiver Enabled */
+#define MCHP_I2SMCC_SR_TXEN		BIT(4)	/* Transmitter Enabled */
+
+/*
+ * ---- Interrupt Enable/Disable/Mask/Status Registers A ----
+ */
+#define MCHP_I2SMCC_INT_TXRDY_MASK(ch)		GENMASK((ch) - 1, 0)
+#define MCHP_I2SMCC_INT_TXRDYCH(ch)		BIT(ch)
+#define MCHP_I2SMCC_INT_TXUNF_MASK(ch)		GENMASK((ch) + 7, 8)
+#define MCHP_I2SMCC_INT_TXUNFCH(ch)		BIT((ch) + 8)
+#define MCHP_I2SMCC_INT_RXRDY_MASK(ch)		GENMASK((ch) + 15, 16)
+#define MCHP_I2SMCC_INT_RXRDYCH(ch)		BIT((ch) + 16)
+#define MCHP_I2SMCC_INT_RXOVF_MASK(ch)		GENMASK((ch) + 23, 24)
+#define MCHP_I2SMCC_INT_RXOVFCH(ch)		BIT((ch) + 24)
+
+/*
+ * ---- Interrupt Enable/Disable/Mask/Status Registers B ----
+ */
+#define MCHP_I2SMCC_INT_WERR			BIT(0)
+#define MCHP_I2SMCC_INT_TXFFRDY			BIT(8)
+#define MCHP_I2SMCC_INT_TXFFEMP			BIT(9)
+#define MCHP_I2SMCC_INT_RXFFRDY			BIT(12)
+#define MCHP_I2SMCC_INT_RXFFFUL			BIT(13)
+
+/*
+ * ---- Version Register (Read-only) ----
+ */
+#define MCHP_I2SMCC_VERSION_MASK		GENMASK(11, 0)
+
+#define MCHP_I2SMCC_MAX_CHANNELS		8
+#define MCHP_I2MCC_TDM_SLOT_WIDTH		32
+
+static const struct regmap_config mchp_i2s_mcc_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = MCHP_I2SMCC_VERSION,
+};
+
+struct mchp_i2s_mcc_soc_data {
+	unsigned int	data_pin_pair_num;
+	bool		has_fifo;
+};
+
+struct mchp_i2s_mcc_dev {
+	struct wait_queue_head			wq_txrdy;
+	struct wait_queue_head			wq_rxrdy;
+	struct device				*dev;
+	struct regmap				*regmap;
+	struct clk				*pclk;
+	struct clk				*gclk;
+	const struct mchp_i2s_mcc_soc_data	*soc;
+	struct snd_dmaengine_dai_dma_data	playback;
+	struct snd_dmaengine_dai_dma_data	capture;
+	unsigned int				fmt;
+	unsigned int				sysclk;
+	unsigned int				frame_length;
+	int					tdm_slots;
+	int					channels;
+	u8					tdm_data_pair;
+	unsigned int				gclk_use:1;
+	unsigned int				gclk_running:1;
+	unsigned int				tx_rdy:1;
+	unsigned int				rx_rdy:1;
+};
+
+static irqreturn_t mchp_i2s_mcc_interrupt(int irq, void *dev_id)
+{
+	struct mchp_i2s_mcc_dev *dev = dev_id;
+	u32 sra, imra, srb, imrb, pendinga, pendingb, idra = 0, idrb = 0;
+	irqreturn_t ret = IRQ_NONE;
+
+	regmap_read(dev->regmap, MCHP_I2SMCC_IMRA, &imra);
+	regmap_read(dev->regmap, MCHP_I2SMCC_ISRA, &sra);
+	pendinga = imra & sra;
+
+	regmap_read(dev->regmap, MCHP_I2SMCC_IMRB, &imrb);
+	regmap_read(dev->regmap, MCHP_I2SMCC_ISRB, &srb);
+	pendingb = imrb & srb;
+
+	if (!pendinga && !pendingb)
+		return IRQ_NONE;
+
+	/*
+	 * Tx/Rx ready interrupts are enabled when stopping only, to assure
+	 * availability and to disable clocks if necessary
+	 */
+	if (dev->soc->has_fifo) {
+		idrb |= pendingb & (MCHP_I2SMCC_INT_TXFFRDY |
+				    MCHP_I2SMCC_INT_RXFFRDY);
+	} else {
+		idra |= pendinga & (MCHP_I2SMCC_INT_TXRDY_MASK(dev->channels) |
+				    MCHP_I2SMCC_INT_RXRDY_MASK(dev->channels));
+	}
+	if (idra || idrb)
+		ret = IRQ_HANDLED;
+
+	if ((!dev->soc->has_fifo &&
+	     (imra & MCHP_I2SMCC_INT_TXRDY_MASK(dev->channels)) &&
+	     (imra & MCHP_I2SMCC_INT_TXRDY_MASK(dev->channels)) ==
+	     (idra & MCHP_I2SMCC_INT_TXRDY_MASK(dev->channels))) ||
+	    (dev->soc->has_fifo && imrb & MCHP_I2SMCC_INT_TXFFRDY)) {
+		dev->tx_rdy = 1;
+		wake_up_interruptible(&dev->wq_txrdy);
+	}
+	if ((!dev->soc->has_fifo &&
+	     (imra & MCHP_I2SMCC_INT_RXRDY_MASK(dev->channels)) &&
+	     (imra & MCHP_I2SMCC_INT_RXRDY_MASK(dev->channels)) ==
+	     (idra & MCHP_I2SMCC_INT_RXRDY_MASK(dev->channels))) ||
+	    (dev->soc->has_fifo && imrb & MCHP_I2SMCC_INT_RXFFRDY)) {
+		dev->rx_rdy = 1;
+		wake_up_interruptible(&dev->wq_rxrdy);
+	}
+	if (dev->soc->has_fifo)
+		regmap_write(dev->regmap, MCHP_I2SMCC_IDRB, idrb);
+	else
+		regmap_write(dev->regmap, MCHP_I2SMCC_IDRA, idra);
+
+	return ret;
+}
+
+static int mchp_i2s_mcc_set_sysclk(struct snd_soc_dai *dai,
+				   int clk_id, unsigned int freq, int dir)
+{
+	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	dev_dbg(dev->dev, "%s() clk_id=%d freq=%u dir=%d\n",
+		__func__, clk_id, freq, dir);
+
+	/* We do not need SYSCLK */
+	if (dir == SND_SOC_CLOCK_IN)
+		return 0;
+
+	dev->sysclk = freq;
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_set_bclk_ratio(struct snd_soc_dai *dai,
+				       unsigned int ratio)
+{
+	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	dev_dbg(dev->dev, "%s() ratio=%u\n", __func__, ratio);
+
+	dev->frame_length = ratio;
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	dev_dbg(dev->dev, "%s() fmt=%#x\n", __func__, fmt);
+
+	/* We don't support any kind of clock inversion */
+	if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF)
+		return -EINVAL;
+
+	/* We can't generate only FSYNC */
+	if ((fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) == SND_SOC_DAIFMT_BC_FP)
+		return -EINVAL;
+
+	/* We can only reconfigure the IP when it's stopped */
+	if (fmt & SND_SOC_DAIFMT_CONT)
+		return -EINVAL;
+
+	dev->fmt = fmt;
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_set_dai_tdm_slot(struct snd_soc_dai *dai,
+					 unsigned int tx_mask,
+					 unsigned int rx_mask,
+					 int slots, int slot_width)
+{
+	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	dev_dbg(dev->dev,
+		"%s() tx_mask=0x%08x rx_mask=0x%08x slots=%d width=%d\n",
+		__func__, tx_mask, rx_mask, slots, slot_width);
+
+	if (slots < 0 || slots > MCHP_I2SMCC_MAX_CHANNELS ||
+	    slot_width != MCHP_I2MCC_TDM_SLOT_WIDTH)
+		return -EINVAL;
+
+	if (slots) {
+		/* We do not support daisy chain */
+		if (rx_mask != GENMASK(slots - 1, 0) ||
+		    rx_mask != tx_mask)
+			return -EINVAL;
+	}
+
+	dev->tdm_slots = slots;
+	dev->frame_length = slots * MCHP_I2MCC_TDM_SLOT_WIDTH;
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_clk_get_rate_diff(struct clk *clk,
+					  unsigned long rate,
+					  struct clk **best_clk,
+					  unsigned long *best_rate,
+					  unsigned long *best_diff_rate)
+{
+	long round_rate;
+	unsigned int diff_rate;
+
+	round_rate = clk_round_rate(clk, rate);
+	if (round_rate < 0)
+		return (int)round_rate;
+
+	diff_rate = abs(rate - round_rate);
+	if (diff_rate < *best_diff_rate) {
+		*best_clk = clk;
+		*best_diff_rate = diff_rate;
+		*best_rate = rate;
+	}
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_config_divs(struct mchp_i2s_mcc_dev *dev,
+				    unsigned int bclk, unsigned int *mra,
+				    unsigned long *best_rate)
+{
+	unsigned long clk_rate;
+	unsigned long lcm_rate;
+	unsigned long best_diff_rate = ~0;
+	unsigned int sysclk;
+	struct clk *best_clk = NULL;
+	int ret;
+
+	/* For code simplification */
+	if (!dev->sysclk)
+		sysclk = bclk;
+	else
+		sysclk = dev->sysclk;
+
+	/*
+	 * MCLK is Selected CLK / (2 * IMCKDIV),
+	 * BCLK is Selected CLK / (2 * ISCKDIV);
+	 * if IMCKDIV or ISCKDIV are 0, MCLK or BCLK = Selected CLK
+	 */
+	lcm_rate = lcm(sysclk, bclk);
+	if ((lcm_rate / sysclk % 2 == 1 && lcm_rate / sysclk > 2) ||
+	    (lcm_rate / bclk % 2 == 1 && lcm_rate / bclk > 2))
+		lcm_rate *= 2;
+
+	for (clk_rate = lcm_rate;
+	     (clk_rate == sysclk || clk_rate / (sysclk * 2) <= GENMASK(5, 0)) &&
+	     (clk_rate == bclk || clk_rate / (bclk * 2) <= GENMASK(5, 0));
+	     clk_rate += lcm_rate) {
+		ret = mchp_i2s_mcc_clk_get_rate_diff(dev->gclk, clk_rate,
+						     &best_clk, best_rate,
+						     &best_diff_rate);
+		if (ret) {
+			dev_err(dev->dev, "gclk error for rate %lu: %d",
+				clk_rate, ret);
+		} else {
+			if (!best_diff_rate) {
+				dev_dbg(dev->dev, "found perfect rate on gclk: %lu\n",
+					clk_rate);
+				break;
+			}
+		}
+
+		ret = mchp_i2s_mcc_clk_get_rate_diff(dev->pclk, clk_rate,
+						     &best_clk, best_rate,
+						     &best_diff_rate);
+		if (ret) {
+			dev_err(dev->dev, "pclk error for rate %lu: %d",
+				clk_rate, ret);
+		} else {
+			if (!best_diff_rate) {
+				dev_dbg(dev->dev, "found perfect rate on pclk: %lu\n",
+					clk_rate);
+				break;
+			}
+		}
+	}
+
+	/* check if clocks returned only errors */
+	if (!best_clk) {
+		dev_err(dev->dev, "unable to change rate to clocks\n");
+		return -EINVAL;
+	}
+
+	dev_dbg(dev->dev, "source CLK is %s with rate %lu, diff %lu\n",
+		best_clk == dev->pclk ? "pclk" : "gclk",
+		*best_rate, best_diff_rate);
+
+	/* Configure divisors */
+	if (dev->sysclk)
+		*mra |= MCHP_I2SMCC_MRA_IMCKDIV(*best_rate / (2 * sysclk));
+	*mra |= MCHP_I2SMCC_MRA_ISCKDIV(*best_rate / (2 * bclk));
+
+	if (best_clk == dev->gclk)
+		*mra |= MCHP_I2SMCC_MRA_SRCCLK_GCLK;
+	else
+		*mra |= MCHP_I2SMCC_MRA_SRCCLK_PCLK;
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_is_running(struct mchp_i2s_mcc_dev *dev)
+{
+	u32 sr;
+
+	regmap_read(dev->regmap, MCHP_I2SMCC_SR, &sr);
+	return !!(sr & (MCHP_I2SMCC_SR_TXEN | MCHP_I2SMCC_SR_RXEN));
+}
+
+static int mchp_i2s_mcc_hw_params(struct snd_pcm_substream *substream,
+				  struct snd_pcm_hw_params *params,
+				  struct snd_soc_dai *dai)
+{
+	unsigned long rate = 0;
+	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+	u32 mra = 0;
+	u32 mrb = 0;
+	unsigned int channels = params_channels(params);
+	unsigned int frame_length = dev->frame_length;
+	unsigned int bclk_rate;
+	int set_divs = 0;
+	int ret;
+	bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+
+	dev_dbg(dev->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",
+		__func__, params_rate(params), params_format(params),
+		params_width(params), params_channels(params));
+
+	switch (dev->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		if (dev->tdm_slots) {
+			dev_err(dev->dev, "I2S with TDM is not supported\n");
+			return -EINVAL;
+		}
+		mra |= MCHP_I2SMCC_MRA_FORMAT_I2S;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		if (dev->tdm_slots) {
+			dev_err(dev->dev, "Left-Justified with TDM is not supported\n");
+			return -EINVAL;
+		}
+		mra |= MCHP_I2SMCC_MRA_FORMAT_LJ;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		mra |= MCHP_I2SMCC_MRA_FORMAT_TDM;
+		break;
+	default:
+		dev_err(dev->dev, "unsupported bus format\n");
+		return -EINVAL;
+	}
+
+	switch (dev->fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
+	case SND_SOC_DAIFMT_BP_FP:
+		/* cpu is BCLK and LRC master */
+		mra |= MCHP_I2SMCC_MRA_MODE_MASTER;
+		if (dev->sysclk)
+			mra |= MCHP_I2SMCC_MRA_IMCKMODE_GEN;
+		set_divs = 1;
+		break;
+	case SND_SOC_DAIFMT_BP_FC:
+		/* cpu is BCLK master */
+		mrb |= MCHP_I2SMCC_MRB_CLKSEL_INT;
+		set_divs = 1;
+		fallthrough;
+	case SND_SOC_DAIFMT_BC_FC:
+		/* cpu is slave */
+		mra |= MCHP_I2SMCC_MRA_MODE_SLAVE;
+		if (dev->sysclk)
+			dev_warn(dev->dev, "Unable to generate MCLK in Slave mode\n");
+		break;
+	default:
+		dev_err(dev->dev, "unsupported master/slave mode\n");
+		return -EINVAL;
+	}
+
+	if (dev->fmt & (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_LEFT_J)) {
+		/* for I2S and LEFT_J one pin is needed for every 2 channels */
+		if (channels > dev->soc->data_pin_pair_num * 2) {
+			dev_err(dev->dev,
+				"unsupported number of audio channels: %d\n",
+				channels);
+			return -EINVAL;
+		}
+
+		/* enable for interleaved format */
+		mrb |= MCHP_I2SMCC_MRB_CRAMODE_REGULAR;
+
+		switch (channels) {
+		case 1:
+			if (is_playback)
+				mra |= MCHP_I2SMCC_MRA_TXMONO;
+			else
+				mra |= MCHP_I2SMCC_MRA_RXMONO;
+			break;
+		case 2:
+			break;
+		case 4:
+			mra |= MCHP_I2SMCC_MRA_WIRECFG_I2S_2_TDM_1;
+			break;
+		case 8:
+			mra |= MCHP_I2SMCC_MRA_WIRECFG_I2S_4_TDM_2;
+			break;
+		default:
+			dev_err(dev->dev, "unsupported number of audio channels\n");
+			return -EINVAL;
+		}
+
+		if (!frame_length)
+			frame_length = 2 * params_physical_width(params);
+	} else if (dev->fmt & SND_SOC_DAIFMT_DSP_A) {
+		mra |= MCHP_I2SMCC_MRA_WIRECFG_TDM(dev->tdm_data_pair);
+
+		if (dev->tdm_slots) {
+			if (channels % 2 && channels * 2 <= dev->tdm_slots) {
+				/*
+				 * Duplicate data for even-numbered channels
+				 * to odd-numbered channels
+				 */
+				if (is_playback)
+					mra |= MCHP_I2SMCC_MRA_TXMONO;
+				else
+					mra |= MCHP_I2SMCC_MRA_RXMONO;
+			}
+			channels = dev->tdm_slots;
+		}
+
+		mra |= MCHP_I2SMCC_MRA_NBCHAN(channels);
+		if (!frame_length)
+			frame_length = channels * MCHP_I2MCC_TDM_SLOT_WIDTH;
+	}
+
+	/*
+	 * We must have the same burst size configured
+	 * in the DMA transfer and in out IP
+	 */
+	mrb |= MCHP_I2SMCC_MRB_DMACHUNK(channels);
+	if (is_playback)
+		dev->playback.maxburst = 1 << (fls(channels) - 1);
+	else
+		dev->capture.maxburst = 1 << (fls(channels) - 1);
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S8:
+		mra |= MCHP_I2SMCC_MRA_DATALENGTH_8_BITS;
+		break;
+	case SNDRV_PCM_FORMAT_S16_LE:
+		mra |= MCHP_I2SMCC_MRA_DATALENGTH_16_BITS;
+		break;
+	case SNDRV_PCM_FORMAT_S18_3LE:
+		mra |= MCHP_I2SMCC_MRA_DATALENGTH_18_BITS |
+		       MCHP_I2SMCC_MRA_IWS;
+		break;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		mra |= MCHP_I2SMCC_MRA_DATALENGTH_20_BITS |
+		       MCHP_I2SMCC_MRA_IWS;
+		break;
+	case SNDRV_PCM_FORMAT_S24_3LE:
+		mra |= MCHP_I2SMCC_MRA_DATALENGTH_24_BITS |
+		       MCHP_I2SMCC_MRA_IWS;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		mra |= MCHP_I2SMCC_MRA_DATALENGTH_24_BITS;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		mra |= MCHP_I2SMCC_MRA_DATALENGTH_32_BITS;
+		break;
+	default:
+		dev_err(dev->dev, "unsupported size/endianness for audio samples\n");
+		return -EINVAL;
+	}
+
+	if (set_divs) {
+		bclk_rate = frame_length * params_rate(params);
+		ret = mchp_i2s_mcc_config_divs(dev, bclk_rate, &mra,
+					       &rate);
+		if (ret) {
+			dev_err(dev->dev,
+				"unable to configure the divisors: %d\n", ret);
+			return ret;
+		}
+	}
+
+	/* enable FIFO if available */
+	if (dev->soc->has_fifo)
+		mrb |= MCHP_I2SMCC_MRB_FIFOEN;
+
+	/*
+	 * If we are already running, the wanted setup must be
+	 * the same with the one that's currently ongoing
+	 */
+	if (mchp_i2s_mcc_is_running(dev)) {
+		u32 mra_cur;
+		u32 mrb_cur;
+
+		regmap_read(dev->regmap, MCHP_I2SMCC_MRA, &mra_cur);
+		regmap_read(dev->regmap, MCHP_I2SMCC_MRB, &mrb_cur);
+		if (mra != mra_cur || mrb != mrb_cur)
+			return -EINVAL;
+
+		return 0;
+	}
+
+	if (mra & MCHP_I2SMCC_MRA_SRCCLK_GCLK && !dev->gclk_use) {
+		/* set the rate */
+		ret = clk_set_rate(dev->gclk, rate);
+		if (ret) {
+			dev_err(dev->dev,
+				"unable to set rate %lu to GCLK: %d\n",
+				rate, ret);
+			return ret;
+		}
+
+		ret = clk_prepare(dev->gclk);
+		if (ret < 0) {
+			dev_err(dev->dev, "unable to prepare GCLK: %d\n", ret);
+			return ret;
+		}
+		dev->gclk_use = 1;
+	}
+
+	/* Save the number of channels to know what interrupts to enable */
+	dev->channels = channels;
+
+	ret = regmap_write(dev->regmap, MCHP_I2SMCC_MRA, mra);
+	if (ret < 0) {
+		if (dev->gclk_use) {
+			clk_unprepare(dev->gclk);
+			dev->gclk_use = 0;
+		}
+		return ret;
+	}
+	return regmap_write(dev->regmap, MCHP_I2SMCC_MRB, mrb);
+}
+
+static int mchp_i2s_mcc_hw_free(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+	bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+	long err;
+
+	if (is_playback) {
+		err = wait_event_interruptible_timeout(dev->wq_txrdy,
+						       dev->tx_rdy,
+						       msecs_to_jiffies(500));
+		if (err == 0) {
+			dev_warn_once(dev->dev,
+				      "Timeout waiting for Tx ready\n");
+			if (dev->soc->has_fifo)
+				regmap_write(dev->regmap, MCHP_I2SMCC_IDRB,
+					     MCHP_I2SMCC_INT_TXFFRDY);
+			else
+				regmap_write(dev->regmap, MCHP_I2SMCC_IDRA,
+					     MCHP_I2SMCC_INT_TXRDY_MASK(dev->channels));
+
+			dev->tx_rdy = 1;
+		}
+	} else {
+		err = wait_event_interruptible_timeout(dev->wq_rxrdy,
+						       dev->rx_rdy,
+						       msecs_to_jiffies(500));
+		if (err == 0) {
+			dev_warn_once(dev->dev,
+				      "Timeout waiting for Rx ready\n");
+			if (dev->soc->has_fifo)
+				regmap_write(dev->regmap, MCHP_I2SMCC_IDRB,
+					     MCHP_I2SMCC_INT_RXFFRDY);
+			else
+				regmap_write(dev->regmap, MCHP_I2SMCC_IDRA,
+					     MCHP_I2SMCC_INT_RXRDY_MASK(dev->channels));
+			dev->rx_rdy = 1;
+		}
+	}
+
+	if (!mchp_i2s_mcc_is_running(dev)) {
+		regmap_write(dev->regmap, MCHP_I2SMCC_CR, MCHP_I2SMCC_CR_CKDIS);
+
+		if (dev->gclk_running) {
+			clk_disable(dev->gclk);
+			dev->gclk_running = 0;
+		}
+		if (dev->gclk_use) {
+			clk_unprepare(dev->gclk);
+			dev->gclk_use = 0;
+		}
+	}
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_trigger(struct snd_pcm_substream *substream, int cmd,
+				struct snd_soc_dai *dai)
+{
+	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+	bool is_playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
+	u32 cr = 0;
+	u32 iera = 0, ierb = 0;
+	u32 sr;
+	int err;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (is_playback)
+			cr = MCHP_I2SMCC_CR_TXEN | MCHP_I2SMCC_CR_CKEN;
+		else
+			cr = MCHP_I2SMCC_CR_RXEN | MCHP_I2SMCC_CR_CKEN;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		regmap_read(dev->regmap, MCHP_I2SMCC_SR, &sr);
+		if (is_playback && (sr & MCHP_I2SMCC_SR_TXEN)) {
+			cr = MCHP_I2SMCC_CR_TXDIS;
+			dev->tx_rdy = 0;
+			/*
+			 * Enable Tx Ready interrupts on all channels
+			 * to assure all data is sent
+			 */
+			if (dev->soc->has_fifo)
+				ierb = MCHP_I2SMCC_INT_TXFFRDY;
+			else
+				iera = MCHP_I2SMCC_INT_TXRDY_MASK(dev->channels);
+		} else if (!is_playback && (sr & MCHP_I2SMCC_SR_RXEN)) {
+			cr = MCHP_I2SMCC_CR_RXDIS;
+			dev->rx_rdy = 0;
+			/*
+			 * Enable Rx Ready interrupts on all channels
+			 * to assure all data is received
+			 */
+			if (dev->soc->has_fifo)
+				ierb = MCHP_I2SMCC_INT_RXFFRDY;
+			else
+				iera = MCHP_I2SMCC_INT_RXRDY_MASK(dev->channels);
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if ((cr & MCHP_I2SMCC_CR_CKEN) && dev->gclk_use &&
+	    !dev->gclk_running) {
+		err = clk_enable(dev->gclk);
+		if (err) {
+			dev_err_once(dev->dev, "failed to enable GCLK: %d\n",
+				     err);
+		} else {
+			dev->gclk_running = 1;
+		}
+	}
+
+	if (dev->soc->has_fifo)
+		regmap_write(dev->regmap, MCHP_I2SMCC_IERB, ierb);
+	else
+		regmap_write(dev->regmap, MCHP_I2SMCC_IERA, iera);
+	regmap_write(dev->regmap, MCHP_I2SMCC_CR, cr);
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_startup(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	/* Software reset the IP if it's not running */
+	if (!mchp_i2s_mcc_is_running(dev)) {
+		return regmap_write(dev->regmap, MCHP_I2SMCC_CR,
+				    MCHP_I2SMCC_CR_SWRST);
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops mchp_i2s_mcc_dai_ops = {
+	.set_sysclk	= mchp_i2s_mcc_set_sysclk,
+	.set_bclk_ratio = mchp_i2s_mcc_set_bclk_ratio,
+	.startup	= mchp_i2s_mcc_startup,
+	.trigger	= mchp_i2s_mcc_trigger,
+	.hw_params	= mchp_i2s_mcc_hw_params,
+	.hw_free	= mchp_i2s_mcc_hw_free,
+	.set_fmt	= mchp_i2s_mcc_set_dai_fmt,
+	.set_tdm_slot	= mchp_i2s_mcc_set_dai_tdm_slot,
+};
+
+static int mchp_i2s_mcc_dai_probe(struct snd_soc_dai *dai)
+{
+	struct mchp_i2s_mcc_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	init_waitqueue_head(&dev->wq_txrdy);
+	init_waitqueue_head(&dev->wq_rxrdy);
+	dev->tx_rdy = 1;
+	dev->rx_rdy = 1;
+
+	snd_soc_dai_init_dma_data(dai, &dev->playback, &dev->capture);
+
+	return 0;
+}
+
+#define MCHP_I2SMCC_RATES              SNDRV_PCM_RATE_8000_192000
+
+#define MCHP_I2SMCC_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 |      \
+				 SNDRV_PCM_FMTBIT_S32_LE)
+
+static struct snd_soc_dai_driver mchp_i2s_mcc_dai = {
+	.probe	= mchp_i2s_mcc_dai_probe,
+	.playback = {
+		.stream_name = "I2SMCC-Playback",
+		.channels_min = 1,
+		.channels_max = 8,
+		.rates = MCHP_I2SMCC_RATES,
+		.formats = MCHP_I2SMCC_FORMATS,
+	},
+	.capture = {
+		.stream_name = "I2SMCC-Capture",
+		.channels_min = 1,
+		.channels_max = 8,
+		.rates = MCHP_I2SMCC_RATES,
+		.formats = MCHP_I2SMCC_FORMATS,
+	},
+	.ops = &mchp_i2s_mcc_dai_ops,
+	.symmetric_rate = 1,
+	.symmetric_sample_bits = 1,
+	.symmetric_channels = 1,
+};
+
+static const struct snd_soc_component_driver mchp_i2s_mcc_component = {
+	.name			= "mchp-i2s-mcc",
+	.legacy_dai_naming	= 1,
+};
+
+#ifdef CONFIG_OF
+static struct mchp_i2s_mcc_soc_data mchp_i2s_mcc_sam9x60 = {
+	.data_pin_pair_num = 1,
+};
+
+static struct mchp_i2s_mcc_soc_data mchp_i2s_mcc_sama7g5 = {
+	.data_pin_pair_num = 4,
+	.has_fifo = true,
+};
+
+static const struct of_device_id mchp_i2s_mcc_dt_ids[] = {
+	{
+		.compatible = "microchip,sam9x60-i2smcc",
+		.data = &mchp_i2s_mcc_sam9x60,
+	},
+	{
+		.compatible = "microchip,sama7g5-i2smcc",
+		.data = &mchp_i2s_mcc_sama7g5,
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mchp_i2s_mcc_dt_ids);
+#endif
+
+static int mchp_i2s_mcc_soc_data_parse(struct platform_device *pdev,
+				       struct mchp_i2s_mcc_dev *dev)
+{
+	int err;
+
+	if (!dev->soc) {
+		dev_err(&pdev->dev, "failed to get soc data\n");
+		return -ENODEV;
+	}
+
+	if (dev->soc->data_pin_pair_num == 1)
+		return 0;
+
+	err = of_property_read_u8(pdev->dev.of_node, "microchip,tdm-data-pair",
+				  &dev->tdm_data_pair);
+	if (err < 0 && err != -EINVAL) {
+		dev_err(&pdev->dev,
+			"bad property data for 'microchip,tdm-data-pair': %d",
+			err);
+		return err;
+	}
+	if (err == -EINVAL) {
+		dev_info(&pdev->dev,
+			 "'microchip,tdm-data-pair' not found; assuming DIN/DOUT 0 for TDM\n");
+		dev->tdm_data_pair = 0;
+	} else {
+		if (dev->tdm_data_pair > dev->soc->data_pin_pair_num - 1) {
+			dev_err(&pdev->dev,
+				"invalid value for 'microchip,tdm-data-pair': %d\n",
+				dev->tdm_data_pair);
+			return -EINVAL;
+		}
+		dev_dbg(&pdev->dev, "TMD format on DIN/DOUT %d pins\n",
+			dev->tdm_data_pair);
+	}
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_probe(struct platform_device *pdev)
+{
+	struct mchp_i2s_mcc_dev *dev;
+	struct resource *mem;
+	struct regmap *regmap;
+	void __iomem *base;
+	u32 version;
+	int irq;
+	int err;
+
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	regmap = devm_regmap_init_mmio(&pdev->dev, base,
+				       &mchp_i2s_mcc_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	err = devm_request_irq(&pdev->dev, irq, mchp_i2s_mcc_interrupt, 0,
+			       dev_name(&pdev->dev), dev);
+	if (err)
+		return err;
+
+	dev->pclk = devm_clk_get(&pdev->dev, "pclk");
+	if (IS_ERR(dev->pclk)) {
+		err = PTR_ERR(dev->pclk);
+		dev_err(&pdev->dev,
+			"failed to get the peripheral clock: %d\n", err);
+		return err;
+	}
+
+	/* Get the optional generated clock */
+	dev->gclk = devm_clk_get(&pdev->dev, "gclk");
+	if (IS_ERR(dev->gclk)) {
+		if (PTR_ERR(dev->gclk) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+		dev_warn(&pdev->dev,
+			 "generated clock not found: %d\n", err);
+		dev->gclk = NULL;
+	}
+
+	dev->soc = of_device_get_match_data(&pdev->dev);
+	err = mchp_i2s_mcc_soc_data_parse(pdev, dev);
+	if (err < 0)
+		return err;
+
+	dev->dev = &pdev->dev;
+	dev->regmap = regmap;
+	platform_set_drvdata(pdev, dev);
+
+	err = clk_prepare_enable(dev->pclk);
+	if (err) {
+		dev_err(&pdev->dev,
+			"failed to enable the peripheral clock: %d\n", err);
+		return err;
+	}
+
+	err = devm_snd_soc_register_component(&pdev->dev,
+					      &mchp_i2s_mcc_component,
+					      &mchp_i2s_mcc_dai, 1);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register DAI: %d\n", err);
+		clk_disable_unprepare(dev->pclk);
+		return err;
+	}
+
+	dev->playback.addr	= (dma_addr_t)mem->start + MCHP_I2SMCC_THR;
+	dev->capture.addr	= (dma_addr_t)mem->start + MCHP_I2SMCC_RHR;
+
+	err = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register PCM: %d\n", err);
+		clk_disable_unprepare(dev->pclk);
+		return err;
+	}
+
+	/* Get IP version. */
+	regmap_read(dev->regmap, MCHP_I2SMCC_VERSION, &version);
+	dev_info(&pdev->dev, "hw version: %#lx\n",
+		 version & MCHP_I2SMCC_VERSION_MASK);
+
+	return 0;
+}
+
+static int mchp_i2s_mcc_remove(struct platform_device *pdev)
+{
+	struct mchp_i2s_mcc_dev *dev = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(dev->pclk);
+
+	return 0;
+}
+
+static struct platform_driver mchp_i2s_mcc_driver = {
+	.driver		= {
+		.name	= "mchp_i2s_mcc",
+		.of_match_table	= of_match_ptr(mchp_i2s_mcc_dt_ids),
+	},
+	.probe		= mchp_i2s_mcc_probe,
+	.remove		= mchp_i2s_mcc_remove,
+};
+module_platform_driver(mchp_i2s_mcc_driver);
+
+MODULE_DESCRIPTION("Microchip I2S Multi-Channel Controller driver");
+MODULE_AUTHOR("Codrin Ciubotariu <codrin.ciubotariu@microchip.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/atmel/mchp-pdmc.c b/sound/soc/atmel/mchp-pdmc.c
new file mode 100644
index 000000000..44aefbd5b
--- /dev/null
+++ b/sound/soc/atmel/mchp-pdmc.c
@@ -0,0 +1,1085 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Driver for Microchip Pulse Density Microphone Controller (PDMC) interfaces
+//
+// Copyright (C) 2019-2022 Microchip Technology Inc. and its subsidiaries
+//
+// Author: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
+
+#include <dt-bindings/sound/microchip,pdmc.h>
+
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/tlv.h>
+
+/*
+ * ---- PDMC Register map ----
+ */
+#define MCHP_PDMC_CR			0x00	/* Control Register */
+#define MCHP_PDMC_MR			0x04	/* Mode Register */
+#define MCHP_PDMC_CFGR			0x08	/* Configuration Register */
+#define MCHP_PDMC_RHR			0x0C	/* Receive Holding Register */
+#define MCHP_PDMC_IER			0x14	/* Interrupt Enable Register */
+#define MCHP_PDMC_IDR			0x18	/* Interrupt Disable Register */
+#define MCHP_PDMC_IMR			0x1C	/* Interrupt Mask Register */
+#define MCHP_PDMC_ISR			0x20	/* Interrupt Status Register */
+#define MCHP_PDMC_VER			0x50	/* Version Register */
+
+/*
+ * ---- Control Register (Write-only) ----
+ */
+#define MCHP_PDMC_CR_SWRST		BIT(0)	/* Software Reset */
+
+/*
+ * ---- Mode Register (Read/Write) ----
+ */
+#define MCHP_PDMC_MR_PDMCEN_MASK	GENMASK(3, 0)
+#define MCHP_PDMC_MR_PDMCEN(ch)		(BIT(ch) & MCHP_PDMC_MR_PDMCEN_MASK)
+
+#define MCHP_PDMC_MR_OSR_MASK		GENMASK(17, 16)
+#define MCHP_PDMC_MR_OSR64		(1 << 16)
+#define MCHP_PDMC_MR_OSR128		(2 << 16)
+#define MCHP_PDMC_MR_OSR256		(3 << 16)
+
+#define MCHP_PDMC_MR_SINCORDER_MASK	GENMASK(23, 20)
+#define MCHP_PDMC_MR_SINCORDER(order)	(((order) << 20) & \
+					 MCHP_PDMC_MR_SINCORDER_MASK)
+
+#define MCHP_PDMC_MR_SINC_OSR_MASK	GENMASK(27, 24)
+#define MCHP_PDMC_MR_SINC_OSR_DIS	(0 << 24)
+#define MCHP_PDMC_MR_SINC_OSR_8		(1 << 24)
+#define MCHP_PDMC_MR_SINC_OSR_16	(2 << 24)
+#define MCHP_PDMC_MR_SINC_OSR_32	(3 << 24)
+#define MCHP_PDMC_MR_SINC_OSR_64	(4 << 24)
+#define MCHP_PDMC_MR_SINC_OSR_128	(5 << 24)
+#define MCHP_PDMC_MR_SINC_OSR_256	(6 << 24)
+
+#define MCHP_PDMC_MR_CHUNK_MASK		GENMASK(31, 28)
+#define MCHP_PDMC_MR_CHUNK(chunk)	(((chunk) << 28) & \
+					 MCHP_PDMC_MR_CHUNK_MASK)
+
+/*
+ * ---- Configuration Register (Read/Write) ----
+ */
+#define MCHP_PDMC_CFGR_BSSEL_MASK	(BIT(0) | BIT(2) | BIT(4) | BIT(6))
+#define MCHP_PDMC_CFGR_BSSEL(ch)	BIT((ch) * 2)
+
+#define MCHP_PDMC_CFGR_PDMSEL_MASK	(BIT(16) | BIT(18) | BIT(20) | BIT(22))
+#define MCHP_PDMC_CFGR_PDMSEL(ch)	BIT((ch) * 2 + 16)
+
+/*
+ * ---- Interrupt Enable/Disable/Mask/Status Registers ----
+ */
+#define MCHP_PDMC_IR_RXRDY		BIT(0)
+#define MCHP_PDMC_IR_RXEMPTY		BIT(1)
+#define MCHP_PDMC_IR_RXFULL		BIT(2)
+#define MCHP_PDMC_IR_RXCHUNK		BIT(3)
+#define MCHP_PDMC_IR_RXUDR		BIT(4)
+#define MCHP_PDMC_IR_RXOVR		BIT(5)
+
+/*
+ * ---- Version Register (Read-only) ----
+ */
+#define MCHP_PDMC_VER_VERSION		GENMASK(11, 0)
+
+#define MCHP_PDMC_MAX_CHANNELS		4
+#define MCHP_PDMC_DS_NO			2
+#define MCHP_PDMC_EDGE_NO		2
+
+struct mic_map {
+	int ds_pos;
+	int clk_edge;
+};
+
+struct mchp_pdmc_chmap {
+	struct snd_pcm_chmap_elem *chmap;
+	struct mchp_pdmc *dd;
+	struct snd_pcm *pcm;
+	struct snd_kcontrol *kctl;
+};
+
+struct mchp_pdmc {
+	struct mic_map channel_mic_map[MCHP_PDMC_MAX_CHANNELS];
+	struct device *dev;
+	struct snd_dmaengine_dai_dma_data addr;
+	struct regmap *regmap;
+	struct clk *pclk;
+	struct clk *gclk;
+	u32 pdmcen;
+	int mic_no;
+	int sinc_order;
+	bool audio_filter_en;
+	u8 gclk_enabled:1;
+};
+
+static const char *const mchp_pdmc_sinc_filter_order_text[] = {
+	"1", "2", "3", "4", "5"
+};
+
+static const unsigned int mchp_pdmc_sinc_filter_order_values[] = {
+	1, 2, 3, 4, 5,
+};
+
+static const struct soc_enum mchp_pdmc_sinc_filter_order_enum = {
+	.items = ARRAY_SIZE(mchp_pdmc_sinc_filter_order_text),
+	.texts = mchp_pdmc_sinc_filter_order_text,
+	.values = mchp_pdmc_sinc_filter_order_values,
+};
+
+static int mchp_pdmc_sinc_order_get(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct mchp_pdmc *dd = snd_soc_component_get_drvdata(component);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int item;
+
+	item = snd_soc_enum_val_to_item(e, dd->sinc_order);
+	uvalue->value.enumerated.item[0] = item;
+
+	return 0;
+}
+
+static int mchp_pdmc_sinc_order_put(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct mchp_pdmc *dd = snd_soc_component_get_drvdata(component);
+	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+	unsigned int *item = uvalue->value.enumerated.item;
+	unsigned int val;
+
+	if (item[0] >= e->items)
+		return -EINVAL;
+
+	val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
+	if (val == dd->sinc_order)
+		return 0;
+
+	dd->sinc_order = val;
+
+	return 1;
+}
+
+static int mchp_pdmc_af_get(struct snd_kcontrol *kcontrol,
+			    struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct mchp_pdmc *dd = snd_soc_component_get_drvdata(component);
+
+	uvalue->value.integer.value[0] = !!dd->audio_filter_en;
+
+	return 0;
+}
+
+static int mchp_pdmc_af_put(struct snd_kcontrol *kcontrol,
+			    struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
+	struct mchp_pdmc *dd = snd_soc_component_get_drvdata(component);
+	bool af = uvalue->value.integer.value[0] ? true : false;
+
+	if (dd->audio_filter_en == af)
+		return 0;
+
+	dd->audio_filter_en = af;
+
+	return 1;
+}
+
+static int mchp_pdmc_chmap_ctl_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
+{
+	struct mchp_pdmc_chmap *info = snd_kcontrol_chip(kcontrol);
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = info->dd->mic_no;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = SNDRV_CHMAP_RR; /* maxmimum 4 channels */
+	return 0;
+}
+
+static inline struct snd_pcm_substream *
+mchp_pdmc_chmap_substream(struct mchp_pdmc_chmap *info, unsigned int idx)
+{
+	struct snd_pcm_substream *s;
+
+	for (s = info->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; s; s = s->next)
+		if (s->number == idx)
+			return s;
+	return NULL;
+}
+
+static struct snd_pcm_chmap_elem *mchp_pdmc_chmap_get(struct snd_pcm_substream *substream,
+						      struct mchp_pdmc_chmap *ch_info)
+{
+	struct snd_pcm_chmap_elem *map;
+
+	for (map = ch_info->chmap; map->channels; map++) {
+		if (map->channels == substream->runtime->channels)
+			return map;
+	}
+	return NULL;
+}
+
+static int mchp_pdmc_chmap_ctl_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct mchp_pdmc_chmap *info = snd_kcontrol_chip(kcontrol);
+	struct mchp_pdmc *dd = info->dd;
+	unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+	struct snd_pcm_substream *substream;
+	const struct snd_pcm_chmap_elem *map;
+	int i;
+	u32 cfgr_val = 0;
+
+	if (!info->chmap)
+		return -EINVAL;
+	substream = mchp_pdmc_chmap_substream(info, idx);
+	if (!substream)
+		return -ENODEV;
+	memset(ucontrol->value.integer.value, 0, sizeof(long) * info->dd->mic_no);
+	if (!substream->runtime)
+		return 0; /* no channels set */
+
+	map = mchp_pdmc_chmap_get(substream, info);
+	if (!map)
+		return -EINVAL;
+
+	for (i = 0; i < map->channels; i++) {
+		int map_idx = map->channels == 1 ? map->map[i] - SNDRV_CHMAP_MONO :
+						   map->map[i] - SNDRV_CHMAP_FL;
+
+		/* make sure the reported channel map is the real one, so write the map */
+		if (dd->channel_mic_map[map_idx].ds_pos)
+			cfgr_val |= MCHP_PDMC_CFGR_PDMSEL(i);
+		if (dd->channel_mic_map[map_idx].clk_edge)
+			cfgr_val |= MCHP_PDMC_CFGR_BSSEL(i);
+
+		ucontrol->value.integer.value[i] = map->map[i];
+	}
+
+	regmap_write(dd->regmap, MCHP_PDMC_CFGR, cfgr_val);
+
+	return 0;
+}
+
+static int mchp_pdmc_chmap_ctl_put(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *ucontrol)
+{
+	struct mchp_pdmc_chmap *info = snd_kcontrol_chip(kcontrol);
+	struct mchp_pdmc *dd = info->dd;
+	unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
+	struct snd_pcm_substream *substream;
+	struct snd_pcm_chmap_elem *map;
+	u32 cfgr_val = 0;
+	int i;
+
+	if (!info->chmap)
+		return -EINVAL;
+	substream = mchp_pdmc_chmap_substream(info, idx);
+	if (!substream)
+		return -ENODEV;
+
+	map = mchp_pdmc_chmap_get(substream, info);
+	if (!map)
+		return -EINVAL;
+
+	for (i = 0; i < map->channels; i++) {
+		int map_idx;
+
+		map->map[i] = ucontrol->value.integer.value[i];
+		map_idx = map->channels == 1 ? map->map[i] - SNDRV_CHMAP_MONO :
+					       map->map[i] - SNDRV_CHMAP_FL;
+
+		/* configure IP for the desired channel map */
+		if (dd->channel_mic_map[map_idx].ds_pos)
+			cfgr_val |= MCHP_PDMC_CFGR_PDMSEL(i);
+		if (dd->channel_mic_map[map_idx].clk_edge)
+			cfgr_val |= MCHP_PDMC_CFGR_BSSEL(i);
+	}
+
+	regmap_write(dd->regmap, MCHP_PDMC_CFGR, cfgr_val);
+
+	return 0;
+}
+
+static void mchp_pdmc_chmap_ctl_private_free(struct snd_kcontrol *kcontrol)
+{
+	struct mchp_pdmc_chmap *info = snd_kcontrol_chip(kcontrol);
+
+	info->pcm->streams[SNDRV_PCM_STREAM_CAPTURE].chmap_kctl = NULL;
+	kfree(info);
+}
+
+static int mchp_pdmc_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
+				   unsigned int size, unsigned int __user *tlv)
+{
+	struct mchp_pdmc_chmap *info = snd_kcontrol_chip(kcontrol);
+	const struct snd_pcm_chmap_elem *map;
+	unsigned int __user *dst;
+	int c, count = 0;
+
+	if (!info->chmap)
+		return -EINVAL;
+	if (size < 8)
+		return -ENOMEM;
+	if (put_user(SNDRV_CTL_TLVT_CONTAINER, tlv))
+		return -EFAULT;
+	size -= 8;
+	dst = tlv + 2;
+	for (map = info->chmap; map->channels; map++) {
+		int chs_bytes = map->channels * 4;
+
+		if (size < 8)
+			return -ENOMEM;
+		if (put_user(SNDRV_CTL_TLVT_CHMAP_VAR, dst) ||
+		    put_user(chs_bytes, dst + 1))
+			return -EFAULT;
+		dst += 2;
+		size -= 8;
+		count += 8;
+		if (size < chs_bytes)
+			return -ENOMEM;
+		size -= chs_bytes;
+		count += chs_bytes;
+		for (c = 0; c < map->channels; c++) {
+			if (put_user(map->map[c], dst))
+				return -EFAULT;
+			dst++;
+		}
+	}
+	if (put_user(count, tlv + 1))
+		return -EFAULT;
+	return 0;
+}
+
+static const struct snd_kcontrol_new mchp_pdmc_snd_controls[] = {
+	SOC_SINGLE_BOOL_EXT("Audio Filter", 0, &mchp_pdmc_af_get, &mchp_pdmc_af_put),
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "SINC Filter Order",
+		.info = snd_soc_info_enum_double,
+		.get = mchp_pdmc_sinc_order_get,
+		.put = mchp_pdmc_sinc_order_put,
+		.private_value = (unsigned long)&mchp_pdmc_sinc_filter_order_enum,
+	},
+};
+
+static int mchp_pdmc_close(struct snd_soc_component *component,
+			   struct snd_pcm_substream *substream)
+{
+	return snd_soc_add_component_controls(component, mchp_pdmc_snd_controls,
+					      ARRAY_SIZE(mchp_pdmc_snd_controls));
+}
+
+static int mchp_pdmc_open(struct snd_soc_component *component,
+			  struct snd_pcm_substream *substream)
+{
+	int i;
+
+	/* remove controls that can't be changed at runtime */
+	for (i = 0; i < ARRAY_SIZE(mchp_pdmc_snd_controls); i++) {
+		const struct snd_kcontrol_new *control = &mchp_pdmc_snd_controls[i];
+		struct snd_ctl_elem_id id;
+		struct snd_kcontrol *kctl;
+		int err;
+
+		if (component->name_prefix)
+			snprintf(id.name, sizeof(id.name), "%s %s", component->name_prefix,
+				 control->name);
+		else
+			strscpy(id.name, control->name, sizeof(id.name));
+
+		id.numid = 0;
+		id.iface = control->iface;
+		id.device = control->device;
+		id.subdevice = control->subdevice;
+		id.index = control->index;
+		kctl = snd_ctl_find_id(component->card->snd_card, &id);
+		if (!kctl) {
+			dev_err(component->dev, "Failed to find %s\n", control->name);
+			continue;
+		}
+		err = snd_ctl_remove(component->card->snd_card, kctl);
+		if (err < 0) {
+			dev_err(component->dev, "%d: Failed to remove %s\n", err,
+				control->name);
+			continue;
+		}
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver mchp_pdmc_dai_component = {
+	.name = "mchp-pdmc",
+	.controls = mchp_pdmc_snd_controls,
+	.num_controls = ARRAY_SIZE(mchp_pdmc_snd_controls),
+	.open = &mchp_pdmc_open,
+	.close = &mchp_pdmc_close,
+	.legacy_dai_naming = 1,
+};
+
+static const unsigned int mchp_pdmc_1mic[] = {1};
+static const unsigned int mchp_pdmc_2mic[] = {1, 2};
+static const unsigned int mchp_pdmc_3mic[] = {1, 2, 3};
+static const unsigned int mchp_pdmc_4mic[] = {1, 2, 3, 4};
+
+static const struct snd_pcm_hw_constraint_list mchp_pdmc_chan_constr[] = {
+	{
+		.list = mchp_pdmc_1mic,
+		.count = ARRAY_SIZE(mchp_pdmc_1mic),
+	},
+	{
+		.list = mchp_pdmc_2mic,
+		.count = ARRAY_SIZE(mchp_pdmc_2mic),
+	},
+	{
+		.list = mchp_pdmc_3mic,
+		.count = ARRAY_SIZE(mchp_pdmc_3mic),
+	},
+	{
+		.list = mchp_pdmc_4mic,
+		.count = ARRAY_SIZE(mchp_pdmc_4mic),
+	},
+};
+
+static int mchp_pdmc_startup(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai);
+	int ret;
+
+	ret = clk_prepare_enable(dd->pclk);
+	if (ret) {
+		dev_err(dd->dev, "failed to enable the peripheral clock: %d\n", ret);
+		return ret;
+	}
+
+	regmap_write(dd->regmap, MCHP_PDMC_CR, MCHP_PDMC_CR_SWRST);
+
+	snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+				   &mchp_pdmc_chan_constr[dd->mic_no - 1]);
+
+	return 0;
+}
+
+static void mchp_pdmc_shutdown(struct snd_pcm_substream *substream,
+			       struct snd_soc_dai *dai)
+{
+	struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai);
+
+	clk_disable_unprepare(dd->pclk);
+}
+
+static int mchp_pdmc_dai_probe(struct snd_soc_dai *dai)
+{
+	struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, NULL, &dd->addr);
+
+	return 0;
+}
+
+static int mchp_pdmc_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	unsigned int fmt_master = fmt & SND_SOC_DAIFMT_MASTER_MASK;
+	unsigned int fmt_format = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+
+	/* IP needs to be bitclock master */
+	if (fmt_master != SND_SOC_DAIFMT_BP_FP &&
+	    fmt_master != SND_SOC_DAIFMT_BP_FC)
+		return -EINVAL;
+
+	/* IP supports only PDM interface */
+	if (fmt_format != SND_SOC_DAIFMT_PDM)
+		return -EINVAL;
+
+	return 0;
+}
+
+static u32 mchp_pdmc_mr_set_osr(int audio_filter_en, unsigned int osr)
+{
+	if (audio_filter_en) {
+		switch (osr) {
+		case 64:
+			return MCHP_PDMC_MR_OSR64;
+		case 128:
+			return MCHP_PDMC_MR_OSR128;
+		case 256:
+			return MCHP_PDMC_MR_OSR256;
+		}
+	} else {
+		switch (osr) {
+		case 8:
+			return MCHP_PDMC_MR_SINC_OSR_8;
+		case 16:
+			return MCHP_PDMC_MR_SINC_OSR_16;
+		case 32:
+			return MCHP_PDMC_MR_SINC_OSR_32;
+		case 64:
+			return MCHP_PDMC_MR_SINC_OSR_64;
+		case 128:
+			return MCHP_PDMC_MR_SINC_OSR_128;
+		case 256:
+			return MCHP_PDMC_MR_SINC_OSR_256;
+		}
+	}
+	return 0;
+}
+
+static inline int mchp_pdmc_period_to_maxburst(int period_size)
+{
+	if (!(period_size % 8))
+		return 8;
+	if (!(period_size % 4))
+		return 4;
+	if (!(period_size % 2))
+		return 2;
+	return 1;
+}
+
+static struct snd_pcm_chmap_elem mchp_pdmc_std_chmaps[] = {
+	{ .channels = 1,
+	  .map = { SNDRV_CHMAP_MONO } },
+	{ .channels = 2,
+	  .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
+	{ .channels = 3,
+	  .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+		   SNDRV_CHMAP_RL } },
+	{ .channels = 4,
+	  .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+		   SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } },
+	{ }
+};
+
+static int mchp_pdmc_hw_params(struct snd_pcm_substream *substream,
+			       struct snd_pcm_hw_params *params,
+			       struct snd_soc_dai *dai)
+{
+	struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai);
+	struct snd_soc_component *comp = dai->component;
+	unsigned long gclk_rate = 0;
+	unsigned long best_diff_rate = ~0UL;
+	unsigned int channels = params_channels(params);
+	unsigned int osr = 0, osr_start;
+	unsigned int fs = params_rate(params);
+	u32 mr_val = 0;
+	u32 cfgr_val = 0;
+	int i;
+	int ret;
+
+	dev_dbg(comp->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",
+		__func__, params_rate(params), params_format(params),
+		params_width(params), params_channels(params));
+
+	if (channels > dd->mic_no) {
+		dev_err(comp->dev, "more channels %u than microphones %d\n",
+			channels, dd->mic_no);
+		return -EINVAL;
+	}
+
+	dd->pdmcen = 0;
+	for (i = 0; i < channels; i++) {
+		dd->pdmcen |= MCHP_PDMC_MR_PDMCEN(i);
+		if (dd->channel_mic_map[i].ds_pos)
+			cfgr_val |= MCHP_PDMC_CFGR_PDMSEL(i);
+		if (dd->channel_mic_map[i].clk_edge)
+			cfgr_val |= MCHP_PDMC_CFGR_BSSEL(i);
+	}
+
+	if (dd->gclk_enabled) {
+		clk_disable_unprepare(dd->gclk);
+		dd->gclk_enabled = 0;
+	}
+
+	for (osr_start = dd->audio_filter_en ? 64 : 8;
+	     osr_start <= 256 && best_diff_rate; osr_start *= 2) {
+		long round_rate;
+		unsigned long diff_rate;
+
+		round_rate = clk_round_rate(dd->gclk,
+					    (unsigned long)fs * 16 * osr_start);
+		if (round_rate < 0)
+			continue;
+		diff_rate = abs((fs * 16 * osr_start) - round_rate);
+		if (diff_rate < best_diff_rate) {
+			best_diff_rate = diff_rate;
+			osr = osr_start;
+			gclk_rate = fs * 16 * osr;
+		}
+	}
+	if (!gclk_rate) {
+		dev_err(comp->dev, "invalid sampling rate: %u\n", fs);
+		return -EINVAL;
+	}
+
+	/* set the rate */
+	ret = clk_set_rate(dd->gclk, gclk_rate);
+	if (ret) {
+		dev_err(comp->dev, "unable to set rate %lu to GCLK: %d\n",
+			gclk_rate, ret);
+		return ret;
+	}
+
+	mr_val |= mchp_pdmc_mr_set_osr(dd->audio_filter_en, osr);
+
+	mr_val |= MCHP_PDMC_MR_SINCORDER(dd->sinc_order);
+
+	dd->addr.maxburst = mchp_pdmc_period_to_maxburst(snd_pcm_lib_period_bytes(substream));
+	mr_val |= MCHP_PDMC_MR_CHUNK(dd->addr.maxburst);
+	dev_dbg(comp->dev, "maxburst set to %d\n", dd->addr.maxburst);
+
+	clk_prepare_enable(dd->gclk);
+	dd->gclk_enabled = 1;
+
+	snd_soc_component_update_bits(comp, MCHP_PDMC_MR,
+				      MCHP_PDMC_MR_OSR_MASK |
+				      MCHP_PDMC_MR_SINCORDER_MASK |
+				      MCHP_PDMC_MR_SINC_OSR_MASK |
+				      MCHP_PDMC_MR_CHUNK_MASK, mr_val);
+
+	snd_soc_component_write(comp, MCHP_PDMC_CFGR, cfgr_val);
+
+	return 0;
+}
+
+static int mchp_pdmc_hw_free(struct snd_pcm_substream *substream,
+			     struct snd_soc_dai *dai)
+{
+	struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai);
+
+	if (dd->gclk_enabled) {
+		clk_disable_unprepare(dd->gclk);
+		dd->gclk_enabled = 0;
+	}
+
+	return 0;
+}
+
+static int mchp_pdmc_trigger(struct snd_pcm_substream *substream,
+			     int cmd, struct snd_soc_dai *dai)
+{
+	struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai);
+	struct snd_soc_component *cpu = dai->component;
+#ifdef DEBUG
+	u32 val;
+#endif
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		/* Enable overrun and underrun error interrupts */
+		regmap_write(dd->regmap, MCHP_PDMC_IER,
+			     MCHP_PDMC_IR_RXOVR | MCHP_PDMC_IR_RXUDR);
+		snd_soc_component_update_bits(cpu, MCHP_PDMC_MR,
+					      MCHP_PDMC_MR_PDMCEN_MASK,
+					      dd->pdmcen);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		/* Disable overrun and underrun error interrupts */
+		regmap_write(dd->regmap, MCHP_PDMC_IDR,
+			     MCHP_PDMC_IR_RXOVR | MCHP_PDMC_IR_RXUDR);
+		snd_soc_component_update_bits(cpu, MCHP_PDMC_MR,
+					      MCHP_PDMC_MR_PDMCEN_MASK, 0);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+#ifdef DEBUG
+	regmap_read(dd->regmap, MCHP_PDMC_MR, &val);
+	dev_dbg(dd->dev, "MR (0x%02x): 0x%08x\n", MCHP_PDMC_MR, val);
+	regmap_read(dd->regmap, MCHP_PDMC_CFGR, &val);
+	dev_dbg(dd->dev, "CFGR (0x%02x): 0x%08x\n", MCHP_PDMC_CFGR, val);
+	regmap_read(dd->regmap, MCHP_PDMC_IMR, &val);
+	dev_dbg(dd->dev, "IMR (0x%02x): 0x%08x\n", MCHP_PDMC_IMR, val);
+#endif
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops mchp_pdmc_dai_ops = {
+	.set_fmt	= mchp_pdmc_set_fmt,
+	.startup	= mchp_pdmc_startup,
+	.shutdown	= mchp_pdmc_shutdown,
+	.hw_params	= mchp_pdmc_hw_params,
+	.hw_free	= mchp_pdmc_hw_free,
+	.trigger	= mchp_pdmc_trigger,
+};
+
+static int mchp_pdmc_add_chmap_ctls(struct snd_pcm *pcm, struct mchp_pdmc *dd)
+{
+	struct mchp_pdmc_chmap *info;
+	struct snd_kcontrol_new knew = {
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+			SNDRV_CTL_ELEM_ACCESS_TLV_READ |
+			SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK,
+		.info = mchp_pdmc_chmap_ctl_info,
+		.get = mchp_pdmc_chmap_ctl_get,
+		.put = mchp_pdmc_chmap_ctl_put,
+		.tlv.c = mchp_pdmc_chmap_ctl_tlv,
+	};
+	int err;
+
+	if (WARN_ON(pcm->streams[SNDRV_PCM_STREAM_CAPTURE].chmap_kctl))
+		return -EBUSY;
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+	info->pcm = pcm;
+	info->dd = dd;
+	info->chmap = mchp_pdmc_std_chmaps;
+	knew.name = "Capture Channel Map";
+	knew.device = pcm->device;
+	knew.count = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream_count;
+	info->kctl = snd_ctl_new1(&knew, info);
+	if (!info->kctl) {
+		kfree(info);
+		return -ENOMEM;
+	}
+	info->kctl->private_free = mchp_pdmc_chmap_ctl_private_free;
+	err = snd_ctl_add(pcm->card, info->kctl);
+	if (err < 0)
+		return err;
+	pcm->streams[SNDRV_PCM_STREAM_CAPTURE].chmap_kctl = info->kctl;
+	return 0;
+}
+
+static int mchp_pdmc_pcm_new(struct snd_soc_pcm_runtime *rtd,
+			     struct snd_soc_dai *dai)
+{
+	struct mchp_pdmc *dd = snd_soc_dai_get_drvdata(dai);
+	int ret;
+
+	ret = mchp_pdmc_add_chmap_ctls(rtd->pcm, dd);
+	if (ret < 0) {
+		dev_err(dd->dev, "failed to add channel map controls: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver mchp_pdmc_dai = {
+	.probe	= mchp_pdmc_dai_probe,
+	.capture = {
+		.stream_name	= "Capture",
+		.channels_min	= 1,
+		.channels_max	= 4,
+		.rate_min	= 8000,
+		.rate_max	= 192000,
+		.rates		= SNDRV_PCM_RATE_KNOT,
+		.formats	= SNDRV_PCM_FMTBIT_S24_LE,
+	},
+	.ops = &mchp_pdmc_dai_ops,
+	.pcm_new = &mchp_pdmc_pcm_new,
+};
+
+/* PDMC interrupt handler */
+static irqreturn_t mchp_pdmc_interrupt(int irq, void *dev_id)
+{
+	struct mchp_pdmc *dd = (struct mchp_pdmc *)dev_id;
+	u32 isr, msr, pending;
+	irqreturn_t ret = IRQ_NONE;
+
+	regmap_read(dd->regmap, MCHP_PDMC_ISR, &isr);
+	regmap_read(dd->regmap, MCHP_PDMC_IMR, &msr);
+
+	pending = isr & msr;
+	dev_dbg(dd->dev, "ISR (0x%02x): 0x%08x, IMR (0x%02x): 0x%08x, pending: 0x%08x\n",
+		MCHP_PDMC_ISR, isr, MCHP_PDMC_IMR, msr, pending);
+	if (!pending)
+		return IRQ_NONE;
+
+	if (pending & MCHP_PDMC_IR_RXUDR) {
+		dev_warn(dd->dev, "underrun detected\n");
+		regmap_write(dd->regmap, MCHP_PDMC_IDR, MCHP_PDMC_IR_RXUDR);
+		ret = IRQ_HANDLED;
+	}
+	if (pending & MCHP_PDMC_IR_RXOVR) {
+		dev_warn(dd->dev, "overrun detected\n");
+		regmap_write(dd->regmap, MCHP_PDMC_IDR, MCHP_PDMC_IR_RXOVR);
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+}
+
+/* regmap configuration */
+static bool mchp_pdmc_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MCHP_PDMC_MR:
+	case MCHP_PDMC_CFGR:
+	case MCHP_PDMC_IMR:
+	case MCHP_PDMC_ISR:
+	case MCHP_PDMC_VER:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool mchp_pdmc_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MCHP_PDMC_CR:
+	case MCHP_PDMC_MR:
+	case MCHP_PDMC_CFGR:
+	case MCHP_PDMC_IER:
+	case MCHP_PDMC_IDR:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool mchp_pdmc_precious_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case MCHP_PDMC_RHR:
+	case MCHP_PDMC_ISR:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config mchp_pdmc_regmap_config = {
+	.reg_bits	= 32,
+	.reg_stride	= 4,
+	.val_bits	= 32,
+	.max_register	= MCHP_PDMC_VER,
+	.readable_reg	= mchp_pdmc_readable_reg,
+	.writeable_reg	= mchp_pdmc_writeable_reg,
+	.precious_reg	= mchp_pdmc_precious_reg,
+};
+
+static int mchp_pdmc_dt_init(struct mchp_pdmc *dd)
+{
+	struct device_node *np = dd->dev->of_node;
+	bool mic_ch[MCHP_PDMC_DS_NO][MCHP_PDMC_EDGE_NO] = {0};
+	int i;
+	int ret;
+
+	if (!np) {
+		dev_err(dd->dev, "device node not found\n");
+		return -EINVAL;
+	}
+
+	dd->mic_no = of_property_count_u32_elems(np, "microchip,mic-pos");
+	if (dd->mic_no < 0) {
+		dev_err(dd->dev, "failed to get microchip,mic-pos: %d",
+			dd->mic_no);
+		return dd->mic_no;
+	}
+	if (!dd->mic_no || dd->mic_no % 2 ||
+	    dd->mic_no / 2 > MCHP_PDMC_MAX_CHANNELS) {
+		dev_err(dd->dev, "invalid array length for microchip,mic-pos: %d",
+			dd->mic_no);
+		return -EINVAL;
+	}
+
+	dd->mic_no /= 2;
+
+	dev_info(dd->dev, "%d PDM microphones declared\n", dd->mic_no);
+
+	/*
+	 * by default, we consider the order of microphones in
+	 * microchip,mic-pos to be the same with the channel mapping;
+	 * 1st microphone channel 0, 2nd microphone channel 1, etc.
+	 */
+	for (i = 0; i < dd->mic_no; i++) {
+		int ds;
+		int edge;
+
+		ret = of_property_read_u32_index(np, "microchip,mic-pos", i * 2,
+						 &ds);
+		if (ret) {
+			dev_err(dd->dev,
+				"failed to get value no %d value from microchip,mic-pos: %d",
+				i * 2, ret);
+			return ret;
+		}
+		if (ds >= MCHP_PDMC_DS_NO) {
+			dev_err(dd->dev,
+				"invalid DS index in microchip,mic-pos array: %d",
+				ds);
+			return -EINVAL;
+		}
+
+		ret = of_property_read_u32_index(np, "microchip,mic-pos", i * 2 + 1,
+						 &edge);
+		if (ret) {
+			dev_err(dd->dev,
+				"failed to get value no %d value from microchip,mic-pos: %d",
+				i * 2 + 1, ret);
+			return ret;
+		}
+
+		if (edge != MCHP_PDMC_CLK_POSITIVE &&
+		    edge != MCHP_PDMC_CLK_NEGATIVE) {
+			dev_err(dd->dev,
+				"invalid edge in microchip,mic-pos array: %d", edge);
+			return -EINVAL;
+		}
+		if (mic_ch[ds][edge]) {
+			dev_err(dd->dev,
+				"duplicated mic (DS %d, edge %d) in microchip,mic-pos array",
+				ds, edge);
+			return -EINVAL;
+		}
+		mic_ch[ds][edge] = true;
+		dd->channel_mic_map[i].ds_pos = ds;
+		dd->channel_mic_map[i].clk_edge = edge;
+	}
+
+	return 0;
+}
+
+/* used to clean the channel index found on RHR's MSB */
+static int mchp_pdmc_process(struct snd_pcm_substream *substream,
+			     int channel, unsigned long hwoff,
+			     void *buf, unsigned long bytes)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	u8 *dma_ptr = runtime->dma_area + hwoff +
+		      channel * (runtime->dma_bytes / runtime->channels);
+	u8 *dma_ptr_end = dma_ptr + bytes;
+	unsigned int sample_size = samples_to_bytes(runtime, 1);
+
+	for (; dma_ptr < dma_ptr_end; dma_ptr += sample_size)
+		*dma_ptr = 0;
+
+	return 0;
+}
+
+static struct snd_dmaengine_pcm_config mchp_pdmc_config = {
+	.process = mchp_pdmc_process,
+	.prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
+};
+
+static int mchp_pdmc_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mchp_pdmc *dd;
+	struct resource *res;
+	void __iomem *io_base;
+	u32 version;
+	int irq;
+	int ret;
+
+	dd = devm_kzalloc(dev, sizeof(*dd), GFP_KERNEL);
+	if (!dd)
+		return -ENOMEM;
+
+	dd->dev = &pdev->dev;
+	ret = mchp_pdmc_dt_init(dd);
+	if (ret < 0)
+		return ret;
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	dd->pclk = devm_clk_get(dev, "pclk");
+	if (IS_ERR(dd->pclk)) {
+		ret = PTR_ERR(dd->pclk);
+		dev_err(dev, "failed to get peripheral clock: %d\n", ret);
+		return ret;
+	}
+
+	dd->gclk = devm_clk_get(dev, "gclk");
+	if (IS_ERR(dd->gclk)) {
+		ret = PTR_ERR(dd->gclk);
+		dev_err(dev, "failed to get GCK: %d\n", ret);
+		return ret;
+	}
+
+	io_base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(io_base)) {
+		ret = PTR_ERR(io_base);
+		dev_err(dev, "failed to remap register memory: %d\n", ret);
+		return ret;
+	}
+
+	dd->regmap = devm_regmap_init_mmio(dev, io_base,
+					   &mchp_pdmc_regmap_config);
+	if (IS_ERR(dd->regmap)) {
+		ret = PTR_ERR(dd->regmap);
+		dev_err(dev, "failed to init register map: %d\n", ret);
+		return ret;
+	}
+
+	ret = devm_request_irq(dev, irq, mchp_pdmc_interrupt, 0,
+			       dev_name(&pdev->dev), (void *)dd);
+	if (ret < 0) {
+		dev_err(dev, "can't register ISR for IRQ %u (ret=%i)\n",
+			irq, ret);
+		return ret;
+	}
+
+	/* by default audio filter is enabled and the SINC Filter order
+	 * will be set to the recommended value, 3
+	 */
+	dd->audio_filter_en = true;
+	dd->sinc_order = 3;
+
+	dd->addr.addr = (dma_addr_t)res->start + MCHP_PDMC_RHR;
+	platform_set_drvdata(pdev, dd);
+
+	/* register platform */
+	ret = devm_snd_dmaengine_pcm_register(dev, &mchp_pdmc_config, 0);
+	if (ret) {
+		dev_err(dev, "could not register platform: %d\n", ret);
+		return ret;
+	}
+
+	ret = devm_snd_soc_register_component(dev, &mchp_pdmc_dai_component,
+					      &mchp_pdmc_dai, 1);
+	if (ret) {
+		dev_err(dev, "could not register CPU DAI: %d\n", ret);
+		return ret;
+	}
+
+	/* print IP version */
+	regmap_read(dd->regmap, MCHP_PDMC_VER, &version);
+	dev_info(dd->dev, "hw version: %#lx\n",
+		 version & MCHP_PDMC_VER_VERSION);
+
+	return 0;
+}
+
+static const struct of_device_id mchp_pdmc_of_match[] = {
+	{
+		.compatible = "microchip,sama7g5-pdmc",
+	}, {
+		/* sentinel */
+	}
+};
+MODULE_DEVICE_TABLE(of, mchp_pdmc_of_match);
+
+static struct platform_driver mchp_pdmc_driver = {
+	.driver	= {
+		.name		= "mchp-pdmc",
+		.of_match_table	= of_match_ptr(mchp_pdmc_of_match),
+		.pm		= &snd_soc_pm_ops,
+	},
+	.probe	= mchp_pdmc_probe,
+};
+module_platform_driver(mchp_pdmc_driver);
+
+MODULE_DESCRIPTION("Microchip PDMC driver under ALSA SoC architecture");
+MODULE_AUTHOR("Codrin Ciubotariu <codrin.ciubotariu@microchip.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/atmel/mchp-spdifrx.c b/sound/soc/atmel/mchp-spdifrx.c
new file mode 100644
index 000000000..76ce37f64
--- /dev/null
+++ b/sound/soc/atmel/mchp-spdifrx.c
@@ -0,0 +1,1061 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Driver for Microchip S/PDIF RX Controller
+//
+// Copyright (C) 2020 Microchip Technology Inc. and its subsidiaries
+//
+// Author: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spinlock.h>
+
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+/*
+ * ---- S/PDIF Receiver Controller Register map ----
+ */
+#define SPDIFRX_CR			0x00	/* Control Register */
+#define SPDIFRX_MR			0x04	/* Mode Register */
+
+#define SPDIFRX_IER			0x10	/* Interrupt Enable Register */
+#define SPDIFRX_IDR			0x14	/* Interrupt Disable Register */
+#define SPDIFRX_IMR			0x18	/* Interrupt Mask Register */
+#define SPDIFRX_ISR			0x1c	/* Interrupt Status Register */
+#define SPDIFRX_RSR			0x20	/* Status Register */
+#define SPDIFRX_RHR			0x24	/* Holding Register */
+
+#define SPDIFRX_CHSR(channel, reg)	\
+	(0x30 + (channel) * 0x30 + (reg) * 4)	/* Channel x Status Registers */
+
+#define SPDIFRX_CHUD(channel, reg)	\
+	(0x48 + (channel) * 0x30 + (reg) * 4)	/* Channel x User Data Registers */
+
+#define SPDIFRX_WPMR			0xE4	/* Write Protection Mode Register */
+#define SPDIFRX_WPSR			0xE8	/* Write Protection Status Register */
+
+#define SPDIFRX_VERSION			0xFC	/* Version Register */
+
+/*
+ * ---- Control Register (Write-only) ----
+ */
+#define SPDIFRX_CR_SWRST		BIT(0)	/* Software Reset */
+
+/*
+ * ---- Mode Register (Read/Write) ----
+ */
+/* Receive Enable */
+#define SPDIFRX_MR_RXEN_MASK		GENMASK(0, 0)
+#define SPDIFRX_MR_RXEN_DISABLE		(0 << 0)	/* SPDIF Receiver Disabled */
+#define SPDIFRX_MR_RXEN_ENABLE		(1 << 0)	/* SPDIF Receiver Enabled */
+
+/* Validity Bit Mode */
+#define SPDIFRX_MR_VBMODE_MASK		GENAMSK(1, 1)
+#define SPDIFRX_MR_VBMODE_ALWAYS_LOAD \
+	(0 << 1)	/* Load sample regardless of validity bit value */
+#define SPDIFRX_MR_VBMODE_DISCARD_IF_VB1 \
+	(1 << 1)	/* Load sample only if validity bit is 0 */
+
+/* Data Word Endian Mode */
+#define SPDIFRX_MR_ENDIAN_MASK		GENMASK(2, 2)
+#define SPDIFRX_MR_ENDIAN_LITTLE	(0 << 2)	/* Little Endian Mode */
+#define SPDIFRX_MR_ENDIAN_BIG		(1 << 2)	/* Big Endian Mode */
+
+/* Parity Bit Mode */
+#define SPDIFRX_MR_PBMODE_MASK		GENMASK(3, 3)
+#define SPDIFRX_MR_PBMODE_PARCHECK	(0 << 3)	/* Parity Check Enabled */
+#define SPDIFRX_MR_PBMODE_NOPARCHECK	(1 << 3)	/* Parity Check Disabled */
+
+/* Sample Data Width */
+#define SPDIFRX_MR_DATAWIDTH_MASK	GENMASK(5, 4)
+#define SPDIFRX_MR_DATAWIDTH(width) \
+	(((6 - (width) / 4) << 4) & SPDIFRX_MR_DATAWIDTH_MASK)
+
+/* Packed Data Mode in Receive Holding Register */
+#define SPDIFRX_MR_PACK_MASK		GENMASK(7, 7)
+#define SPDIFRX_MR_PACK_DISABLED	(0 << 7)
+#define SPDIFRX_MR_PACK_ENABLED		(1 << 7)
+
+/* Start of Block Bit Mode */
+#define SPDIFRX_MR_SBMODE_MASK		GENMASK(8, 8)
+#define SPDIFRX_MR_SBMODE_ALWAYS_LOAD	(0 << 8)
+#define SPDIFRX_MR_SBMODE_DISCARD	(1 << 8)
+
+/* Consecutive Preamble Error Threshold Automatic Restart */
+#define SPDIFRX_MR_AUTORST_MASK			GENMASK(24, 24)
+#define SPDIFRX_MR_AUTORST_NOACTION		(0 << 24)
+#define SPDIFRX_MR_AUTORST_UNLOCK_ON_PRE_ERR	(1 << 24)
+
+/*
+ * ---- Interrupt Enable/Disable/Mask/Status Register (Write/Read-only) ----
+ */
+#define SPDIFRX_IR_RXRDY			BIT(0)
+#define SPDIFRX_IR_LOCKED			BIT(1)
+#define SPDIFRX_IR_LOSS				BIT(2)
+#define SPDIFRX_IR_BLOCKEND			BIT(3)
+#define SPDIFRX_IR_SFE				BIT(4)
+#define SPDIFRX_IR_PAR_ERR			BIT(5)
+#define SPDIFRX_IR_OVERRUN			BIT(6)
+#define SPDIFRX_IR_RXFULL			BIT(7)
+#define SPDIFRX_IR_CSC(ch)			BIT((ch) + 8)
+#define SPDIFRX_IR_SECE				BIT(10)
+#define SPDIFRX_IR_BLOCKST			BIT(11)
+#define SPDIFRX_IR_NRZ_ERR			BIT(12)
+#define SPDIFRX_IR_PRE_ERR			BIT(13)
+#define SPDIFRX_IR_CP_ERR			BIT(14)
+
+/*
+ * ---- Receiver Status Register (Read/Write) ----
+ */
+/* Enable Status */
+#define SPDIFRX_RSR_ULOCK			BIT(0)
+#define SPDIFRX_RSR_BADF			BIT(1)
+#define SPDIFRX_RSR_LOWF			BIT(2)
+#define SPDIFRX_RSR_NOSIGNAL			BIT(3)
+#define SPDIFRX_RSR_IFS_MASK			GENMASK(27, 16)
+#define SPDIFRX_RSR_IFS(reg)			\
+	(((reg) & SPDIFRX_RSR_IFS_MASK) >> 16)
+
+/*
+ *  ---- Version Register (Read-only) ----
+ */
+#define SPDIFRX_VERSION_MASK		GENMASK(11, 0)
+#define SPDIFRX_VERSION_MFN_MASK	GENMASK(18, 16)
+#define SPDIFRX_VERSION_MFN(reg)	(((reg) & SPDIFRX_VERSION_MFN_MASK) >> 16)
+
+static bool mchp_spdifrx_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case SPDIFRX_MR:
+	case SPDIFRX_IMR:
+	case SPDIFRX_ISR:
+	case SPDIFRX_RSR:
+	case SPDIFRX_CHSR(0, 0):
+	case SPDIFRX_CHSR(0, 1):
+	case SPDIFRX_CHSR(0, 2):
+	case SPDIFRX_CHSR(0, 3):
+	case SPDIFRX_CHSR(0, 4):
+	case SPDIFRX_CHSR(0, 5):
+	case SPDIFRX_CHUD(0, 0):
+	case SPDIFRX_CHUD(0, 1):
+	case SPDIFRX_CHUD(0, 2):
+	case SPDIFRX_CHUD(0, 3):
+	case SPDIFRX_CHUD(0, 4):
+	case SPDIFRX_CHUD(0, 5):
+	case SPDIFRX_CHSR(1, 0):
+	case SPDIFRX_CHSR(1, 1):
+	case SPDIFRX_CHSR(1, 2):
+	case SPDIFRX_CHSR(1, 3):
+	case SPDIFRX_CHSR(1, 4):
+	case SPDIFRX_CHSR(1, 5):
+	case SPDIFRX_CHUD(1, 0):
+	case SPDIFRX_CHUD(1, 1):
+	case SPDIFRX_CHUD(1, 2):
+	case SPDIFRX_CHUD(1, 3):
+	case SPDIFRX_CHUD(1, 4):
+	case SPDIFRX_CHUD(1, 5):
+	case SPDIFRX_WPMR:
+	case SPDIFRX_WPSR:
+	case SPDIFRX_VERSION:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool mchp_spdifrx_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case SPDIFRX_CR:
+	case SPDIFRX_MR:
+	case SPDIFRX_IER:
+	case SPDIFRX_IDR:
+	case SPDIFRX_WPMR:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool mchp_spdifrx_precious_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case SPDIFRX_ISR:
+	case SPDIFRX_RHR:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config mchp_spdifrx_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = SPDIFRX_VERSION,
+	.readable_reg = mchp_spdifrx_readable_reg,
+	.writeable_reg = mchp_spdifrx_writeable_reg,
+	.precious_reg = mchp_spdifrx_precious_reg,
+};
+
+#define SPDIFRX_GCLK_RATIO_MIN	(12 * 64)
+
+#define SPDIFRX_CS_BITS		192
+#define SPDIFRX_UD_BITS		192
+
+#define SPDIFRX_CHANNELS	2
+
+struct mchp_spdifrx_ch_stat {
+	unsigned char data[SPDIFRX_CS_BITS / 8];
+	struct completion done;
+};
+
+struct mchp_spdifrx_user_data {
+	unsigned char data[SPDIFRX_UD_BITS / 8];
+	struct completion done;
+};
+
+struct mchp_spdifrx_mixer_control {
+	struct mchp_spdifrx_ch_stat ch_stat[SPDIFRX_CHANNELS];
+	struct mchp_spdifrx_user_data user_data[SPDIFRX_CHANNELS];
+	bool ulock;
+	bool badf;
+	bool signal;
+};
+
+struct mchp_spdifrx_dev {
+	struct snd_dmaengine_dai_dma_data	capture;
+	struct mchp_spdifrx_mixer_control	control;
+	struct mutex				mlock;
+	struct device				*dev;
+	struct regmap				*regmap;
+	struct clk				*pclk;
+	struct clk				*gclk;
+	unsigned int				fmt;
+	unsigned int				trigger_enabled;
+	unsigned int				gclk_enabled:1;
+};
+
+static void mchp_spdifrx_channel_status_read(struct mchp_spdifrx_dev *dev,
+					     int channel)
+{
+	struct mchp_spdifrx_mixer_control *ctrl = &dev->control;
+	u8 *ch_stat = &ctrl->ch_stat[channel].data[0];
+	u32 val;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ctrl->ch_stat[channel].data) / 4; i++) {
+		regmap_read(dev->regmap, SPDIFRX_CHSR(channel, i), &val);
+		*ch_stat++ = val & 0xFF;
+		*ch_stat++ = (val >> 8) & 0xFF;
+		*ch_stat++ = (val >> 16) & 0xFF;
+		*ch_stat++ = (val >> 24) & 0xFF;
+	}
+}
+
+static void mchp_spdifrx_channel_user_data_read(struct mchp_spdifrx_dev *dev,
+						int channel)
+{
+	struct mchp_spdifrx_mixer_control *ctrl = &dev->control;
+	u8 *user_data = &ctrl->user_data[channel].data[0];
+	u32 val;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ctrl->user_data[channel].data) / 4; i++) {
+		regmap_read(dev->regmap, SPDIFRX_CHUD(channel, i), &val);
+		*user_data++ = val & 0xFF;
+		*user_data++ = (val >> 8) & 0xFF;
+		*user_data++ = (val >> 16) & 0xFF;
+		*user_data++ = (val >> 24) & 0xFF;
+	}
+}
+
+static irqreturn_t mchp_spdif_interrupt(int irq, void *dev_id)
+{
+	struct mchp_spdifrx_dev *dev = dev_id;
+	struct mchp_spdifrx_mixer_control *ctrl = &dev->control;
+	u32 sr, imr, pending;
+	irqreturn_t ret = IRQ_NONE;
+	int ch;
+
+	regmap_read(dev->regmap, SPDIFRX_ISR, &sr);
+	regmap_read(dev->regmap, SPDIFRX_IMR, &imr);
+	pending = sr & imr;
+	dev_dbg(dev->dev, "ISR: %#x, IMR: %#x, pending: %#x\n", sr, imr,
+		pending);
+
+	if (!pending)
+		return IRQ_NONE;
+
+	if (pending & SPDIFRX_IR_BLOCKEND) {
+		for (ch = 0; ch < SPDIFRX_CHANNELS; ch++) {
+			mchp_spdifrx_channel_user_data_read(dev, ch);
+			complete(&ctrl->user_data[ch].done);
+		}
+		regmap_write(dev->regmap, SPDIFRX_IDR, SPDIFRX_IR_BLOCKEND);
+		ret = IRQ_HANDLED;
+	}
+
+	for (ch = 0; ch < SPDIFRX_CHANNELS; ch++) {
+		if (pending & SPDIFRX_IR_CSC(ch)) {
+			mchp_spdifrx_channel_status_read(dev, ch);
+			complete(&ctrl->ch_stat[ch].done);
+			regmap_write(dev->regmap, SPDIFRX_IDR, SPDIFRX_IR_CSC(ch));
+			ret = IRQ_HANDLED;
+		}
+	}
+
+	if (pending & SPDIFRX_IR_OVERRUN) {
+		dev_warn(dev->dev, "Overrun detected\n");
+		ret = IRQ_HANDLED;
+	}
+
+	return ret;
+}
+
+static int mchp_spdifrx_trigger(struct snd_pcm_substream *substream, int cmd,
+				struct snd_soc_dai *dai)
+{
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	int ret = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		mutex_lock(&dev->mlock);
+		/* Enable overrun interrupts */
+		regmap_write(dev->regmap, SPDIFRX_IER, SPDIFRX_IR_OVERRUN);
+
+		/* Enable receiver. */
+		regmap_update_bits(dev->regmap, SPDIFRX_MR, SPDIFRX_MR_RXEN_MASK,
+				   SPDIFRX_MR_RXEN_ENABLE);
+		dev->trigger_enabled = true;
+		mutex_unlock(&dev->mlock);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		mutex_lock(&dev->mlock);
+		/* Disable overrun interrupts */
+		regmap_write(dev->regmap, SPDIFRX_IDR, SPDIFRX_IR_OVERRUN);
+
+		/* Disable receiver. */
+		regmap_update_bits(dev->regmap, SPDIFRX_MR, SPDIFRX_MR_RXEN_MASK,
+				   SPDIFRX_MR_RXEN_DISABLE);
+		dev->trigger_enabled = false;
+		mutex_unlock(&dev->mlock);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int mchp_spdifrx_hw_params(struct snd_pcm_substream *substream,
+				  struct snd_pcm_hw_params *params,
+				  struct snd_soc_dai *dai)
+{
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	u32 mr = 0;
+	int ret;
+
+	dev_dbg(dev->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",
+		__func__, params_rate(params), params_format(params),
+		params_width(params), params_channels(params));
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		dev_err(dev->dev, "Playback is not supported\n");
+		return -EINVAL;
+	}
+
+	if (params_channels(params) != SPDIFRX_CHANNELS) {
+		dev_err(dev->dev, "unsupported number of channels: %d\n",
+			params_channels(params));
+		return -EINVAL;
+	}
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_BE:
+	case SNDRV_PCM_FORMAT_S20_3BE:
+	case SNDRV_PCM_FORMAT_S24_3BE:
+	case SNDRV_PCM_FORMAT_S24_BE:
+		mr |= SPDIFRX_MR_ENDIAN_BIG;
+		fallthrough;
+	case SNDRV_PCM_FORMAT_S16_LE:
+	case SNDRV_PCM_FORMAT_S20_3LE:
+	case SNDRV_PCM_FORMAT_S24_3LE:
+	case SNDRV_PCM_FORMAT_S24_LE:
+		mr |= SPDIFRX_MR_DATAWIDTH(params_width(params));
+		break;
+	default:
+		dev_err(dev->dev, "unsupported PCM format: %d\n",
+			params_format(params));
+		return -EINVAL;
+	}
+
+	mutex_lock(&dev->mlock);
+	if (dev->trigger_enabled) {
+		dev_err(dev->dev, "PCM already running\n");
+		ret = -EBUSY;
+		goto unlock;
+	}
+
+	if (dev->gclk_enabled) {
+		clk_disable_unprepare(dev->gclk);
+		dev->gclk_enabled = 0;
+	}
+	ret = clk_set_min_rate(dev->gclk, params_rate(params) *
+					  SPDIFRX_GCLK_RATIO_MIN + 1);
+	if (ret) {
+		dev_err(dev->dev,
+			"unable to set gclk min rate: rate %u * ratio %u + 1\n",
+			params_rate(params), SPDIFRX_GCLK_RATIO_MIN);
+		goto unlock;
+	}
+	ret = clk_prepare_enable(dev->gclk);
+	if (ret) {
+		dev_err(dev->dev, "unable to enable gclk: %d\n", ret);
+		goto unlock;
+	}
+	dev->gclk_enabled = 1;
+
+	dev_dbg(dev->dev, "GCLK range min set to %d\n",
+		params_rate(params) * SPDIFRX_GCLK_RATIO_MIN + 1);
+
+	ret = regmap_write(dev->regmap, SPDIFRX_MR, mr);
+
+unlock:
+	mutex_unlock(&dev->mlock);
+
+	return ret;
+}
+
+static int mchp_spdifrx_hw_free(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	mutex_lock(&dev->mlock);
+	if (dev->gclk_enabled) {
+		clk_disable_unprepare(dev->gclk);
+		dev->gclk_enabled = 0;
+	}
+	mutex_unlock(&dev->mlock);
+	return 0;
+}
+
+static const struct snd_soc_dai_ops mchp_spdifrx_dai_ops = {
+	.trigger	= mchp_spdifrx_trigger,
+	.hw_params	= mchp_spdifrx_hw_params,
+	.hw_free	= mchp_spdifrx_hw_free,
+};
+
+#define MCHP_SPDIF_RATES	SNDRV_PCM_RATE_8000_192000
+
+#define MCHP_SPDIF_FORMATS	(SNDRV_PCM_FMTBIT_S16_LE |	\
+				 SNDRV_PCM_FMTBIT_U16_BE |	\
+				 SNDRV_PCM_FMTBIT_S20_3LE |	\
+				 SNDRV_PCM_FMTBIT_S20_3BE |	\
+				 SNDRV_PCM_FMTBIT_S24_3LE |	\
+				 SNDRV_PCM_FMTBIT_S24_3BE |	\
+				 SNDRV_PCM_FMTBIT_S24_LE |	\
+				 SNDRV_PCM_FMTBIT_S24_BE	\
+				)
+
+static int mchp_spdifrx_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 mchp_spdifrx_cs_get(struct mchp_spdifrx_dev *dev,
+			       int channel,
+			       struct snd_ctl_elem_value *uvalue)
+{
+	struct mchp_spdifrx_mixer_control *ctrl = &dev->control;
+	struct mchp_spdifrx_ch_stat *ch_stat = &ctrl->ch_stat[channel];
+	int ret = 0;
+
+	mutex_lock(&dev->mlock);
+
+	/*
+	 * We may reach this point with both clocks enabled but the receiver
+	 * still disabled. To void waiting for completion and return with
+	 * timeout check the dev->trigger_enabled.
+	 *
+	 * To retrieve data:
+	 * - if the receiver is enabled CSC IRQ will update the data in software
+	 *   caches (ch_stat->data)
+	 * - otherwise we just update it here the software caches with latest
+	 *   available information and return it; in this case we don't need
+	 *   spin locking as the IRQ is disabled and will not be raised from
+	 *   anywhere else.
+	 */
+
+	if (dev->trigger_enabled) {
+		reinit_completion(&ch_stat->done);
+		regmap_write(dev->regmap, SPDIFRX_IER, SPDIFRX_IR_CSC(channel));
+		/* Check for new data available */
+		ret = wait_for_completion_interruptible_timeout(&ch_stat->done,
+								msecs_to_jiffies(100));
+		/* Valid stream might not be present */
+		if (ret <= 0) {
+			dev_dbg(dev->dev, "channel status for channel %d timeout\n",
+				channel);
+			regmap_write(dev->regmap, SPDIFRX_IDR, SPDIFRX_IR_CSC(channel));
+			ret = ret ? : -ETIMEDOUT;
+			goto unlock;
+		} else {
+			ret = 0;
+		}
+	} else {
+		/* Update software cache with latest channel status. */
+		mchp_spdifrx_channel_status_read(dev, channel);
+	}
+
+	memcpy(uvalue->value.iec958.status, ch_stat->data,
+	       sizeof(ch_stat->data));
+
+unlock:
+	mutex_unlock(&dev->mlock);
+	return ret;
+}
+
+static int mchp_spdifrx_cs1_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	return mchp_spdifrx_cs_get(dev, 0, uvalue);
+}
+
+static int mchp_spdifrx_cs2_get(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	return mchp_spdifrx_cs_get(dev, 1, uvalue);
+}
+
+static int mchp_spdifrx_cs_mask(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *uvalue)
+{
+	memset(uvalue->value.iec958.status, 0xff,
+	       sizeof(uvalue->value.iec958.status));
+
+	return 0;
+}
+
+static int mchp_spdifrx_subcode_ch_get(struct mchp_spdifrx_dev *dev,
+				       int channel,
+				       struct snd_ctl_elem_value *uvalue)
+{
+	struct mchp_spdifrx_mixer_control *ctrl = &dev->control;
+	struct mchp_spdifrx_user_data *user_data = &ctrl->user_data[channel];
+	int ret = 0;
+
+	mutex_lock(&dev->mlock);
+
+	/*
+	 * We may reach this point with both clocks enabled but the receiver
+	 * still disabled. To void waiting for completion to just timeout we
+	 * check here the dev->trigger_enabled flag.
+	 *
+	 * To retrieve data:
+	 * - if the receiver is enabled we need to wait for blockend IRQ to read
+	 *   data to and update it for us in software caches
+	 * - otherwise reading the SPDIFRX_CHUD() registers is enough.
+	 */
+
+	if (dev->trigger_enabled) {
+		reinit_completion(&user_data->done);
+		regmap_write(dev->regmap, SPDIFRX_IER, SPDIFRX_IR_BLOCKEND);
+		ret = wait_for_completion_interruptible_timeout(&user_data->done,
+								msecs_to_jiffies(100));
+		/* Valid stream might not be present. */
+		if (ret <= 0) {
+			dev_dbg(dev->dev, "user data for channel %d timeout\n",
+				channel);
+			regmap_write(dev->regmap, SPDIFRX_IDR, SPDIFRX_IR_BLOCKEND);
+			ret = ret ? : -ETIMEDOUT;
+			goto unlock;
+		} else {
+			ret = 0;
+		}
+	} else {
+		/* Update software cache with last available data. */
+		mchp_spdifrx_channel_user_data_read(dev, channel);
+	}
+
+	memcpy(uvalue->value.iec958.subcode, user_data->data,
+	       sizeof(user_data->data));
+
+unlock:
+	mutex_unlock(&dev->mlock);
+	return ret;
+}
+
+static int mchp_spdifrx_subcode_ch1_get(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	return mchp_spdifrx_subcode_ch_get(dev, 0, uvalue);
+}
+
+static int mchp_spdifrx_subcode_ch2_get(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	return mchp_spdifrx_subcode_ch_get(dev, 1, uvalue);
+}
+
+static int mchp_spdifrx_boolean_info(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 1;
+
+	return 0;
+}
+
+static int mchp_spdifrx_ulock_get(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdifrx_mixer_control *ctrl = &dev->control;
+	u32 val;
+	bool ulock_old = ctrl->ulock;
+
+	mutex_lock(&dev->mlock);
+
+	/*
+	 * The RSR.ULOCK has wrong value if both pclk and gclk are enabled
+	 * and the receiver is disabled. Thus we take into account the
+	 * dev->trigger_enabled here to return a real status.
+	 */
+	if (dev->trigger_enabled) {
+		regmap_read(dev->regmap, SPDIFRX_RSR, &val);
+		ctrl->ulock = !(val & SPDIFRX_RSR_ULOCK);
+	} else {
+		ctrl->ulock = 0;
+	}
+
+	uvalue->value.integer.value[0] = ctrl->ulock;
+
+	mutex_unlock(&dev->mlock);
+
+	return ulock_old != ctrl->ulock;
+}
+
+static int mchp_spdifrx_badf_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdifrx_mixer_control *ctrl = &dev->control;
+	u32 val;
+	bool badf_old = ctrl->badf;
+
+	mutex_lock(&dev->mlock);
+
+	/*
+	 * The RSR.ULOCK has wrong value if both pclk and gclk are enabled
+	 * and the receiver is disabled. Thus we take into account the
+	 * dev->trigger_enabled here to return a real status.
+	 */
+	if (dev->trigger_enabled) {
+		regmap_read(dev->regmap, SPDIFRX_RSR, &val);
+		ctrl->badf = !!(val & SPDIFRX_RSR_BADF);
+	} else {
+		ctrl->badf = 0;
+	}
+
+	mutex_unlock(&dev->mlock);
+
+	uvalue->value.integer.value[0] = ctrl->badf;
+
+	return badf_old != ctrl->badf;
+}
+
+static int mchp_spdifrx_signal_get(struct snd_kcontrol *kcontrol,
+				   struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdifrx_mixer_control *ctrl = &dev->control;
+	u32 val = ~0U, loops = 10;
+	int ret;
+	bool signal_old = ctrl->signal;
+
+	mutex_lock(&dev->mlock);
+
+	/*
+	 * To get the signal we need to have receiver enabled. This
+	 * could be enabled also from trigger() function thus we need to
+	 * take care of not disabling the receiver when it runs.
+	 */
+	if (!dev->trigger_enabled) {
+		ret = clk_prepare_enable(dev->gclk);
+		if (ret)
+			goto unlock;
+
+		regmap_update_bits(dev->regmap, SPDIFRX_MR, SPDIFRX_MR_RXEN_MASK,
+				   SPDIFRX_MR_RXEN_ENABLE);
+
+		/* Wait for RSR.ULOCK bit. */
+		while (--loops) {
+			regmap_read(dev->regmap, SPDIFRX_RSR, &val);
+			if (!(val & SPDIFRX_RSR_ULOCK))
+				break;
+			usleep_range(100, 150);
+		}
+
+		regmap_update_bits(dev->regmap, SPDIFRX_MR, SPDIFRX_MR_RXEN_MASK,
+				   SPDIFRX_MR_RXEN_DISABLE);
+
+		clk_disable_unprepare(dev->gclk);
+	} else {
+		regmap_read(dev->regmap, SPDIFRX_RSR, &val);
+	}
+
+unlock:
+	mutex_unlock(&dev->mlock);
+
+	if (!(val & SPDIFRX_RSR_ULOCK))
+		ctrl->signal = !(val & SPDIFRX_RSR_NOSIGNAL);
+	else
+		ctrl->signal = 0;
+	uvalue->value.integer.value[0] = ctrl->signal;
+
+	return signal_old != ctrl->signal;
+}
+
+static int mchp_spdifrx_rate_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 = 0;
+	uinfo->value.integer.max = 192000;
+
+	return 0;
+}
+
+static int mchp_spdifrx_rate_get(struct snd_kcontrol *kcontrol,
+				 struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	u32 val;
+	int rate;
+
+	mutex_lock(&dev->mlock);
+
+	/*
+	 * The RSR.ULOCK has wrong value if both pclk and gclk are enabled
+	 * and the receiver is disabled. Thus we take into account the
+	 * dev->trigger_enabled here to return a real status.
+	 */
+	if (dev->trigger_enabled) {
+		regmap_read(dev->regmap, SPDIFRX_RSR, &val);
+		/* If the receiver is not locked, ISF data is invalid. */
+		if (val & SPDIFRX_RSR_ULOCK || !(val & SPDIFRX_RSR_IFS_MASK)) {
+			ucontrol->value.integer.value[0] = 0;
+			goto unlock;
+		}
+	} else {
+		/* Reveicer is not locked, IFS data is invalid. */
+		ucontrol->value.integer.value[0] = 0;
+		goto unlock;
+	}
+
+	rate = clk_get_rate(dev->gclk);
+
+	ucontrol->value.integer.value[0] = rate / (32 * SPDIFRX_RSR_IFS(val));
+
+unlock:
+	mutex_unlock(&dev->mlock);
+	return 0;
+}
+
+static struct snd_kcontrol_new mchp_spdifrx_ctrls[] = {
+	/* Channel status controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT)
+			" Channel 1",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdifrx_info,
+		.get = mchp_spdifrx_cs1_get,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT)
+			" Channel 2",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdifrx_info,
+		.get = mchp_spdifrx_cs2_get,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK),
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+		.info = mchp_spdifrx_info,
+		.get = mchp_spdifrx_cs_mask,
+	},
+	/* User bits controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "IEC958 Subcode Capture Default Channel 1",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdifrx_info,
+		.get = mchp_spdifrx_subcode_ch1_get,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "IEC958 Subcode Capture Default Channel 2",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdifrx_info,
+		.get = mchp_spdifrx_subcode_ch2_get,
+	},
+	/* Lock status */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE) "Unlocked",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdifrx_boolean_info,
+		.get = mchp_spdifrx_ulock_get,
+	},
+	/* Bad format */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE)"Bad Format",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdifrx_boolean_info,
+		.get = mchp_spdifrx_badf_get,
+	},
+	/* Signal */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE) "Signal",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdifrx_boolean_info,
+		.get = mchp_spdifrx_signal_get,
+	},
+	/* Sampling rate */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, NONE) "Rate",
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdifrx_rate_info,
+		.get = mchp_spdifrx_rate_get,
+	},
+};
+
+static int mchp_spdifrx_dai_probe(struct snd_soc_dai *dai)
+{
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdifrx_mixer_control *ctrl = &dev->control;
+	int ch;
+	int err;
+
+	err = clk_prepare_enable(dev->pclk);
+	if (err) {
+		dev_err(dev->dev,
+			"failed to enable the peripheral clock: %d\n", err);
+		return err;
+	}
+
+	snd_soc_dai_init_dma_data(dai, NULL, &dev->capture);
+
+	/* Software reset the IP */
+	regmap_write(dev->regmap, SPDIFRX_CR, SPDIFRX_CR_SWRST);
+
+	/* Default configuration */
+	regmap_write(dev->regmap, SPDIFRX_MR,
+		     SPDIFRX_MR_VBMODE_DISCARD_IF_VB1 |
+		     SPDIFRX_MR_SBMODE_DISCARD |
+		     SPDIFRX_MR_AUTORST_NOACTION |
+		     SPDIFRX_MR_PACK_DISABLED);
+
+	for (ch = 0; ch < SPDIFRX_CHANNELS; ch++) {
+		init_completion(&ctrl->ch_stat[ch].done);
+		init_completion(&ctrl->user_data[ch].done);
+	}
+
+	/* Add controls */
+	snd_soc_add_dai_controls(dai, mchp_spdifrx_ctrls,
+				 ARRAY_SIZE(mchp_spdifrx_ctrls));
+
+	return 0;
+}
+
+static int mchp_spdifrx_dai_remove(struct snd_soc_dai *dai)
+{
+	struct mchp_spdifrx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	/* Disable interrupts */
+	regmap_write(dev->regmap, SPDIFRX_IDR, GENMASK(14, 0));
+
+	clk_disable_unprepare(dev->pclk);
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver mchp_spdifrx_dai = {
+	.name = "mchp-spdifrx",
+	.probe	= mchp_spdifrx_dai_probe,
+	.remove	= mchp_spdifrx_dai_remove,
+	.capture = {
+		.stream_name = "S/PDIF Capture",
+		.channels_min = SPDIFRX_CHANNELS,
+		.channels_max = SPDIFRX_CHANNELS,
+		.rates = MCHP_SPDIF_RATES,
+		.formats = MCHP_SPDIF_FORMATS,
+	},
+	.ops = &mchp_spdifrx_dai_ops,
+};
+
+static const struct snd_soc_component_driver mchp_spdifrx_component = {
+	.name			= "mchp-spdifrx",
+	.legacy_dai_naming	= 1,
+};
+
+static const struct of_device_id mchp_spdifrx_dt_ids[] = {
+	{
+		.compatible = "microchip,sama7g5-spdifrx",
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mchp_spdifrx_dt_ids);
+
+static int mchp_spdifrx_probe(struct platform_device *pdev)
+{
+	struct mchp_spdifrx_dev *dev;
+	struct resource *mem;
+	struct regmap *regmap;
+	void __iomem *base;
+	int irq;
+	int err;
+	u32 vers;
+
+	/* Get memory for driver data. */
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	/* Map I/O registers. */
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	regmap = devm_regmap_init_mmio(&pdev->dev, base,
+				       &mchp_spdifrx_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	/* Request IRQ. */
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	err = devm_request_irq(&pdev->dev, irq, mchp_spdif_interrupt, 0,
+			       dev_name(&pdev->dev), dev);
+	if (err)
+		return err;
+
+	/* Get the peripheral clock */
+	dev->pclk = devm_clk_get(&pdev->dev, "pclk");
+	if (IS_ERR(dev->pclk)) {
+		err = PTR_ERR(dev->pclk);
+		dev_err(&pdev->dev, "failed to get the peripheral clock: %d\n",
+			err);
+		return err;
+	}
+
+	/* Get the generated clock */
+	dev->gclk = devm_clk_get(&pdev->dev, "gclk");
+	if (IS_ERR(dev->gclk)) {
+		err = PTR_ERR(dev->gclk);
+		dev_err(&pdev->dev,
+			"failed to get the PMC generated clock: %d\n", err);
+		return err;
+	}
+
+	/*
+	 * Signal control need a valid rate on gclk. hw_params() configures
+	 * it propertly but requesting signal before any hw_params() has been
+	 * called lead to invalid value returned for signal. Thus, configure
+	 * gclk at a valid rate, here, in initialization, to simplify the
+	 * control path.
+	 */
+	clk_set_min_rate(dev->gclk, 48000 * SPDIFRX_GCLK_RATIO_MIN + 1);
+
+	mutex_init(&dev->mlock);
+
+	dev->dev = &pdev->dev;
+	dev->regmap = regmap;
+	platform_set_drvdata(pdev, dev);
+
+	dev->capture.addr	= (dma_addr_t)mem->start + SPDIFRX_RHR;
+	dev->capture.maxburst	= 1;
+
+	err = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register PCM: %d\n", err);
+		return err;
+	}
+
+	err = devm_snd_soc_register_component(&pdev->dev,
+					      &mchp_spdifrx_component,
+					      &mchp_spdifrx_dai, 1);
+	if (err) {
+		dev_err(&pdev->dev, "fail to register dai\n");
+		return err;
+	}
+
+	regmap_read(regmap, SPDIFRX_VERSION, &vers);
+	dev_info(&pdev->dev, "hw version: %#lx\n", vers & SPDIFRX_VERSION_MASK);
+
+	return 0;
+}
+
+static struct platform_driver mchp_spdifrx_driver = {
+	.probe	= mchp_spdifrx_probe,
+	.driver	= {
+		.name	= "mchp_spdifrx",
+		.of_match_table = of_match_ptr(mchp_spdifrx_dt_ids),
+	},
+};
+
+module_platform_driver(mchp_spdifrx_driver);
+
+MODULE_AUTHOR("Codrin Ciubotariu <codrin.ciubotariu@microchip.com>");
+MODULE_DESCRIPTION("Microchip S/PDIF RX Controller Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/atmel/mchp-spdiftx.c b/sound/soc/atmel/mchp-spdiftx.c
new file mode 100644
index 000000000..ab2d7a791
--- /dev/null
+++ b/sound/soc/atmel/mchp-spdiftx.c
@@ -0,0 +1,859 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Driver for Microchip S/PDIF TX Controller
+//
+// Copyright (C) 2020 Microchip Technology Inc. and its subsidiaries
+//
+// Author: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+
+#include <sound/asoundef.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+/*
+ * ---- S/PDIF Transmitter Controller Register map ----
+ */
+#define SPDIFTX_CR			0x00	/* Control Register */
+#define SPDIFTX_MR			0x04	/* Mode Register */
+#define SPDIFTX_CDR			0x0C	/* Common Data Register */
+
+#define SPDIFTX_IER			0x14	/* Interrupt Enable Register */
+#define SPDIFTX_IDR			0x18	/* Interrupt Disable Register */
+#define SPDIFTX_IMR			0x1C	/* Interrupt Mask Register */
+#define SPDIFTX_ISR			0x20	/* Interrupt Status Register */
+
+#define SPDIFTX_CH1UD(reg)	(0x50 + (reg) * 4)	/* User Data 1 Register x */
+#define SPDIFTX_CH1S(reg)	(0x80 + (reg) * 4)	/* Channel Status 1 Register x */
+
+#define SPDIFTX_VERSION			0xF0
+
+/*
+ * ---- Control Register (Write-only) ----
+ */
+#define SPDIFTX_CR_SWRST		BIT(0)	/* Software Reset */
+#define SPDIFTX_CR_FCLR			BIT(1)	/* FIFO clear */
+
+/*
+ * ---- Mode Register (Read/Write) ----
+ */
+/* Transmit Enable */
+#define SPDIFTX_MR_TXEN_MASK		GENMASK(0, 0)
+#define SPDIFTX_MR_TXEN_DISABLE		(0 << 0)
+#define SPDIFTX_MR_TXEN_ENABLE		(1 << 0)
+
+/* Multichannel Transfer */
+#define SPDIFTX_MR_MULTICH_MASK		GENAMSK(1, 1)
+#define SPDIFTX_MR_MULTICH_MONO		(0 << 1)
+#define SPDIFTX_MR_MULTICH_DUAL		(1 << 1)
+
+/* Data Word Endian Mode */
+#define SPDIFTX_MR_ENDIAN_MASK		GENMASK(2, 2)
+#define SPDIFTX_MR_ENDIAN_LITTLE	(0 << 2)
+#define SPDIFTX_MR_ENDIAN_BIG		(1 << 2)
+
+/* Data Justification */
+#define SPDIFTX_MR_JUSTIFY_MASK		GENMASK(3, 3)
+#define SPDIFTX_MR_JUSTIFY_LSB		(0 << 3)
+#define SPDIFTX_MR_JUSTIFY_MSB		(1 << 3)
+
+/* Common Audio Register Transfer Mode */
+#define SPDIFTX_MR_CMODE_MASK			GENMASK(5, 4)
+#define SPDIFTX_MR_CMODE_INDEX_ACCESS		(0 << 4)
+#define SPDIFTX_MR_CMODE_TOGGLE_ACCESS		(1 << 4)
+#define SPDIFTX_MR_CMODE_INTERLVD_ACCESS	(2 << 4)
+
+/* Valid Bits per Sample */
+#define SPDIFTX_MR_VBPS_MASK		GENMASK(13, 8)
+#define SPDIFTX_MR_VBPS(bps)		(((bps) << 8) & SPDIFTX_MR_VBPS_MASK)
+
+/* Chunk Size */
+#define SPDIFTX_MR_CHUNK_MASK		GENMASK(19, 16)
+#define SPDIFTX_MR_CHUNK(size)		(((size) << 16) & SPDIFTX_MR_CHUNK_MASK)
+
+/* Validity Bits for Channels 1 and 2 */
+#define SPDIFTX_MR_VALID1			BIT(24)
+#define SPDIFTX_MR_VALID2			BIT(25)
+
+/* Disable Null Frame on underrun */
+#define SPDIFTX_MR_DNFR_MASK		GENMASK(27, 27)
+#define SPDIFTX_MR_DNFR_INVALID		(0 << 27)
+#define SPDIFTX_MR_DNFR_VALID		(1 << 27)
+
+/* Bytes per Sample */
+#define SPDIFTX_MR_BPS_MASK		GENMASK(29, 28)
+#define SPDIFTX_MR_BPS(bytes) \
+	((((bytes) - 1) << 28) & SPDIFTX_MR_BPS_MASK)
+
+/*
+ * ---- Interrupt Enable/Disable/Mask/Status Register (Write/Read-only) ----
+ */
+#define SPDIFTX_IR_TXRDY		BIT(0)
+#define SPDIFTX_IR_TXEMPTY		BIT(1)
+#define SPDIFTX_IR_TXFULL		BIT(2)
+#define SPDIFTX_IR_TXCHUNK		BIT(3)
+#define SPDIFTX_IR_TXUDR		BIT(4)
+#define SPDIFTX_IR_TXOVR		BIT(5)
+#define SPDIFTX_IR_CSRDY		BIT(6)
+#define SPDIFTX_IR_UDRDY		BIT(7)
+#define SPDIFTX_IR_TXRDYCH(ch)		BIT((ch) + 8)
+#define SPDIFTX_IR_SECE			BIT(10)
+#define SPDIFTX_IR_TXUDRCH(ch)		BIT((ch) + 11)
+#define SPDIFTX_IR_BEND			BIT(13)
+
+static bool mchp_spdiftx_readable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case SPDIFTX_MR:
+	case SPDIFTX_IMR:
+	case SPDIFTX_ISR:
+	case SPDIFTX_CH1UD(0):
+	case SPDIFTX_CH1UD(1):
+	case SPDIFTX_CH1UD(2):
+	case SPDIFTX_CH1UD(3):
+	case SPDIFTX_CH1UD(4):
+	case SPDIFTX_CH1UD(5):
+	case SPDIFTX_CH1S(0):
+	case SPDIFTX_CH1S(1):
+	case SPDIFTX_CH1S(2):
+	case SPDIFTX_CH1S(3):
+	case SPDIFTX_CH1S(4):
+	case SPDIFTX_CH1S(5):
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool mchp_spdiftx_writeable_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case SPDIFTX_CR:
+	case SPDIFTX_MR:
+	case SPDIFTX_CDR:
+	case SPDIFTX_IER:
+	case SPDIFTX_IDR:
+	case SPDIFTX_CH1UD(0):
+	case SPDIFTX_CH1UD(1):
+	case SPDIFTX_CH1UD(2):
+	case SPDIFTX_CH1UD(3):
+	case SPDIFTX_CH1UD(4):
+	case SPDIFTX_CH1UD(5):
+	case SPDIFTX_CH1S(0):
+	case SPDIFTX_CH1S(1):
+	case SPDIFTX_CH1S(2):
+	case SPDIFTX_CH1S(3):
+	case SPDIFTX_CH1S(4):
+	case SPDIFTX_CH1S(5):
+		return true;
+	default:
+		return false;
+	}
+}
+
+static bool mchp_spdiftx_precious_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case SPDIFTX_CDR:
+	case SPDIFTX_ISR:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config mchp_spdiftx_regmap_config = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.max_register = SPDIFTX_VERSION,
+	.readable_reg = mchp_spdiftx_readable_reg,
+	.writeable_reg = mchp_spdiftx_writeable_reg,
+	.precious_reg = mchp_spdiftx_precious_reg,
+};
+
+#define SPDIFTX_GCLK_RATIO	128
+
+#define SPDIFTX_CS_BITS		192
+#define SPDIFTX_UD_BITS		192
+
+struct mchp_spdiftx_mixer_control {
+	unsigned char				ch_stat[SPDIFTX_CS_BITS / 8];
+	unsigned char				user_data[SPDIFTX_UD_BITS / 8];
+	spinlock_t				lock; /* exclusive access to control data */
+};
+
+struct mchp_spdiftx_dev {
+	struct mchp_spdiftx_mixer_control	control;
+	struct snd_dmaengine_dai_dma_data	playback;
+	struct device				*dev;
+	struct regmap				*regmap;
+	struct clk				*pclk;
+	struct clk				*gclk;
+	unsigned int				fmt;
+	unsigned int				gclk_enabled:1;
+};
+
+static inline int mchp_spdiftx_is_running(struct mchp_spdiftx_dev *dev)
+{
+	u32 mr;
+
+	regmap_read(dev->regmap, SPDIFTX_MR, &mr);
+	return !!(mr & SPDIFTX_MR_TXEN_ENABLE);
+}
+
+static void mchp_spdiftx_channel_status_write(struct mchp_spdiftx_dev *dev)
+{
+	struct mchp_spdiftx_mixer_control *ctrl = &dev->control;
+	u32 val;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ctrl->ch_stat) / 4; i++) {
+		val = (ctrl->ch_stat[(i * 4) + 0] << 0) |
+		      (ctrl->ch_stat[(i * 4) + 1] << 8) |
+		      (ctrl->ch_stat[(i * 4) + 2] << 16) |
+		      (ctrl->ch_stat[(i * 4) + 3] << 24);
+
+		regmap_write(dev->regmap, SPDIFTX_CH1S(i), val);
+	}
+}
+
+static void mchp_spdiftx_user_data_write(struct mchp_spdiftx_dev *dev)
+{
+	struct mchp_spdiftx_mixer_control *ctrl = &dev->control;
+	u32 val;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(ctrl->user_data) / 4; i++) {
+		val = (ctrl->user_data[(i * 4) + 0] << 0) |
+		      (ctrl->user_data[(i * 4) + 1] << 8) |
+		      (ctrl->user_data[(i * 4) + 2] << 16) |
+		      (ctrl->user_data[(i * 4) + 3] << 24);
+
+		regmap_write(dev->regmap, SPDIFTX_CH1UD(i), val);
+	}
+}
+
+static irqreturn_t mchp_spdiftx_interrupt(int irq, void *dev_id)
+{
+	struct mchp_spdiftx_dev *dev = dev_id;
+	struct mchp_spdiftx_mixer_control *ctrl = &dev->control;
+	u32 sr, imr, pending, idr = 0;
+
+	regmap_read(dev->regmap, SPDIFTX_ISR, &sr);
+	regmap_read(dev->regmap, SPDIFTX_IMR, &imr);
+	pending = sr & imr;
+
+	if (!pending)
+		return IRQ_NONE;
+
+	if (pending & SPDIFTX_IR_TXUDR) {
+		dev_warn(dev->dev, "underflow detected\n");
+		idr |= SPDIFTX_IR_TXUDR;
+	}
+
+	if (pending & SPDIFTX_IR_TXOVR) {
+		dev_warn(dev->dev, "overflow detected\n");
+		idr |= SPDIFTX_IR_TXOVR;
+	}
+
+	if (pending & SPDIFTX_IR_UDRDY) {
+		spin_lock(&ctrl->lock);
+		mchp_spdiftx_user_data_write(dev);
+		spin_unlock(&ctrl->lock);
+		idr |= SPDIFTX_IR_UDRDY;
+	}
+
+	if (pending & SPDIFTX_IR_CSRDY) {
+		spin_lock(&ctrl->lock);
+		mchp_spdiftx_channel_status_write(dev);
+		spin_unlock(&ctrl->lock);
+		idr |= SPDIFTX_IR_CSRDY;
+	}
+
+	regmap_write(dev->regmap, SPDIFTX_IDR, idr);
+
+	return IRQ_HANDLED;
+}
+
+static int mchp_spdiftx_dai_startup(struct snd_pcm_substream *substream,
+				    struct snd_soc_dai *dai)
+{
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	/* Software reset the IP */
+	regmap_write(dev->regmap, SPDIFTX_CR,
+		     SPDIFTX_CR_SWRST | SPDIFTX_CR_FCLR);
+
+	return 0;
+}
+
+static void mchp_spdiftx_dai_shutdown(struct snd_pcm_substream *substream,
+				      struct snd_soc_dai *dai)
+{
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	/* Disable interrupts */
+	regmap_write(dev->regmap, SPDIFTX_IDR, 0xffffffff);
+}
+
+static int mchp_spdiftx_trigger(struct snd_pcm_substream *substream, int cmd,
+				struct snd_soc_dai *dai)
+{
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdiftx_mixer_control *ctrl = &dev->control;
+	u32 mr;
+	int running;
+	int ret;
+
+	/* do not start/stop while channel status or user data is updated */
+	spin_lock(&ctrl->lock);
+	regmap_read(dev->regmap, SPDIFTX_MR, &mr);
+	running = !!(mr & SPDIFTX_MR_TXEN_ENABLE);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (!running) {
+			mr &= ~SPDIFTX_MR_TXEN_MASK;
+			mr |= SPDIFTX_MR_TXEN_ENABLE;
+		}
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (running) {
+			mr &= ~SPDIFTX_MR_TXEN_MASK;
+			mr |= SPDIFTX_MR_TXEN_DISABLE;
+		}
+		break;
+	default:
+		spin_unlock(&ctrl->lock);
+		return -EINVAL;
+	}
+
+	ret = regmap_write(dev->regmap, SPDIFTX_MR, mr);
+	spin_unlock(&ctrl->lock);
+	if (ret)
+		dev_err(dev->dev, "unable to disable TX: %d\n", ret);
+
+	return ret;
+}
+
+static int mchp_spdiftx_hw_params(struct snd_pcm_substream *substream,
+				  struct snd_pcm_hw_params *params,
+				  struct snd_soc_dai *dai)
+{
+	unsigned long flags;
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdiftx_mixer_control *ctrl = &dev->control;
+	u32 mr;
+	unsigned int bps = params_physical_width(params) / 8;
+	int ret;
+
+	dev_dbg(dev->dev, "%s() rate=%u format=%#x width=%u channels=%u\n",
+		__func__, params_rate(params), params_format(params),
+		params_width(params), params_channels(params));
+
+	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+		dev_err(dev->dev, "Capture is not supported\n");
+		return -EINVAL;
+	}
+
+	regmap_read(dev->regmap, SPDIFTX_MR, &mr);
+
+	if (mr & SPDIFTX_MR_TXEN_ENABLE) {
+		dev_err(dev->dev, "PCM already running\n");
+		return -EBUSY;
+	}
+
+	/* Defaults: Toggle mode, justify to LSB, chunksize 1 */
+	mr = SPDIFTX_MR_CMODE_TOGGLE_ACCESS | SPDIFTX_MR_JUSTIFY_LSB;
+	dev->playback.maxburst = 1;
+	switch (params_channels(params)) {
+	case 1:
+		mr |= SPDIFTX_MR_MULTICH_MONO;
+		break;
+	case 2:
+		mr |= SPDIFTX_MR_MULTICH_DUAL;
+		if (bps > 2)
+			dev->playback.maxburst = 2;
+		break;
+	default:
+		dev_err(dev->dev, "unsupported number of channels: %d\n",
+			params_channels(params));
+		return -EINVAL;
+	}
+	mr |= SPDIFTX_MR_CHUNK(dev->playback.maxburst);
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S8:
+		mr |= SPDIFTX_MR_VBPS(8);
+		break;
+	case SNDRV_PCM_FORMAT_S16_BE:
+		mr |= SPDIFTX_MR_ENDIAN_BIG;
+		fallthrough;
+	case SNDRV_PCM_FORMAT_S16_LE:
+		mr |= SPDIFTX_MR_VBPS(16);
+		break;
+	case SNDRV_PCM_FORMAT_S18_3BE:
+		mr |= SPDIFTX_MR_ENDIAN_BIG;
+		fallthrough;
+	case SNDRV_PCM_FORMAT_S18_3LE:
+		mr |= SPDIFTX_MR_VBPS(18);
+		break;
+	case SNDRV_PCM_FORMAT_S20_3BE:
+		mr |= SPDIFTX_MR_ENDIAN_BIG;
+		fallthrough;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		mr |= SPDIFTX_MR_VBPS(20);
+		break;
+	case SNDRV_PCM_FORMAT_S24_3BE:
+		mr |= SPDIFTX_MR_ENDIAN_BIG;
+		fallthrough;
+	case SNDRV_PCM_FORMAT_S24_3LE:
+		mr |= SPDIFTX_MR_VBPS(24);
+		break;
+	case SNDRV_PCM_FORMAT_S24_BE:
+		mr |= SPDIFTX_MR_ENDIAN_BIG;
+		fallthrough;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		mr |= SPDIFTX_MR_VBPS(24);
+		break;
+	case SNDRV_PCM_FORMAT_S32_BE:
+		mr |= SPDIFTX_MR_ENDIAN_BIG;
+		fallthrough;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		mr |= SPDIFTX_MR_VBPS(32);
+		break;
+	default:
+		dev_err(dev->dev, "unsupported PCM format: %d\n",
+			params_format(params));
+		return -EINVAL;
+	}
+
+	mr |= SPDIFTX_MR_BPS(bps);
+
+	spin_lock_irqsave(&ctrl->lock, flags);
+	ctrl->ch_stat[3] &= ~IEC958_AES3_CON_FS;
+	switch (params_rate(params)) {
+	case 22050:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_22050;
+		break;
+	case 24000:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_24000;
+		break;
+	case 32000:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_32000;
+		break;
+	case 44100:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_44100;
+		break;
+	case 48000:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_48000;
+		break;
+	case 88200:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_88200;
+		break;
+	case 96000:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_96000;
+		break;
+	case 176400:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_176400;
+		break;
+	case 192000:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_192000;
+		break;
+	case 8000:
+	case 11025:
+	case 16000:
+	case 64000:
+		ctrl->ch_stat[3] |= IEC958_AES3_CON_FS_NOTID;
+		break;
+	default:
+		dev_err(dev->dev, "unsupported sample frequency: %u\n",
+			params_rate(params));
+		spin_unlock_irqrestore(&ctrl->lock, flags);
+		return -EINVAL;
+	}
+	mchp_spdiftx_channel_status_write(dev);
+	spin_unlock_irqrestore(&ctrl->lock, flags);
+
+	if (dev->gclk_enabled) {
+		clk_disable_unprepare(dev->gclk);
+		dev->gclk_enabled = 0;
+	}
+	ret = clk_set_rate(dev->gclk, params_rate(params) *
+				      SPDIFTX_GCLK_RATIO);
+	if (ret) {
+		dev_err(dev->dev,
+			"unable to change gclk rate to: rate %u * ratio %u\n",
+			params_rate(params), SPDIFTX_GCLK_RATIO);
+		return ret;
+	}
+	ret = clk_prepare_enable(dev->gclk);
+	if (ret) {
+		dev_err(dev->dev, "unable to enable gclk: %d\n", ret);
+		return ret;
+	}
+	dev->gclk_enabled = 1;
+	dev_dbg(dev->dev, "%s(): GCLK set to %d\n", __func__,
+		params_rate(params) * SPDIFTX_GCLK_RATIO);
+
+	/* Enable interrupts */
+	regmap_write(dev->regmap, SPDIFTX_IER,
+		     SPDIFTX_IR_TXUDR | SPDIFTX_IR_TXOVR);
+
+	regmap_write(dev->regmap, SPDIFTX_MR, mr);
+
+	return 0;
+}
+
+static int mchp_spdiftx_hw_free(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	regmap_write(dev->regmap, SPDIFTX_IDR,
+		     SPDIFTX_IR_TXUDR | SPDIFTX_IR_TXOVR);
+	if (dev->gclk_enabled) {
+		clk_disable_unprepare(dev->gclk);
+		dev->gclk_enabled = 0;
+	}
+
+	return regmap_write(dev->regmap, SPDIFTX_CR,
+			    SPDIFTX_CR_SWRST | SPDIFTX_CR_FCLR);
+}
+
+static const struct snd_soc_dai_ops mchp_spdiftx_dai_ops = {
+	.startup	= mchp_spdiftx_dai_startup,
+	.shutdown	= mchp_spdiftx_dai_shutdown,
+	.trigger	= mchp_spdiftx_trigger,
+	.hw_params	= mchp_spdiftx_hw_params,
+	.hw_free	= mchp_spdiftx_hw_free,
+};
+
+#define MCHP_SPDIFTX_RATES	SNDRV_PCM_RATE_8000_192000
+
+#define MCHP_SPDIFTX_FORMATS	(SNDRV_PCM_FMTBIT_S8 |		\
+				 SNDRV_PCM_FMTBIT_S16_LE |	\
+				 SNDRV_PCM_FMTBIT_U16_BE |	\
+				 SNDRV_PCM_FMTBIT_S18_3LE |	\
+				 SNDRV_PCM_FMTBIT_S18_3BE |	\
+				 SNDRV_PCM_FMTBIT_S20_3LE |	\
+				 SNDRV_PCM_FMTBIT_S20_3BE |	\
+				 SNDRV_PCM_FMTBIT_S24_3LE |	\
+				 SNDRV_PCM_FMTBIT_S24_3BE |	\
+				 SNDRV_PCM_FMTBIT_S24_LE |	\
+				 SNDRV_PCM_FMTBIT_S24_BE |	\
+				 SNDRV_PCM_FMTBIT_S32_LE |	\
+				 SNDRV_PCM_FMTBIT_S32_BE	\
+				 )
+
+static int mchp_spdiftx_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 mchp_spdiftx_cs_get(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *uvalue)
+{
+	unsigned long flags;
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdiftx_mixer_control *ctrl = &dev->control;
+
+	spin_lock_irqsave(&ctrl->lock, flags);
+	memcpy(uvalue->value.iec958.status, ctrl->ch_stat,
+	       sizeof(ctrl->ch_stat));
+	spin_unlock_irqrestore(&ctrl->lock, flags);
+
+	return 0;
+}
+
+static int mchp_spdiftx_cs_put(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *uvalue)
+{
+	unsigned long flags;
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdiftx_mixer_control *ctrl = &dev->control;
+	int changed = 0;
+	int i;
+
+	spin_lock_irqsave(&ctrl->lock, flags);
+	for (i = 0; i < ARRAY_SIZE(ctrl->ch_stat); i++) {
+		if (ctrl->ch_stat[i] != uvalue->value.iec958.status[i])
+			changed = 1;
+		ctrl->ch_stat[i] = uvalue->value.iec958.status[i];
+	}
+
+	if (changed) {
+		/* don't enable IP while we copy the channel status */
+		if (mchp_spdiftx_is_running(dev)) {
+			/*
+			 * if SPDIF is running, wait for interrupt to write
+			 * channel status
+			 */
+			regmap_write(dev->regmap, SPDIFTX_IER,
+				     SPDIFTX_IR_CSRDY);
+		} else {
+			mchp_spdiftx_channel_status_write(dev);
+		}
+	}
+	spin_unlock_irqrestore(&ctrl->lock, flags);
+
+	return changed;
+}
+
+static int mchp_spdiftx_cs_mask(struct snd_kcontrol *kcontrol,
+				struct snd_ctl_elem_value *uvalue)
+{
+	memset(uvalue->value.iec958.status, 0xff,
+	       sizeof(uvalue->value.iec958.status));
+
+	return 0;
+}
+
+static int mchp_spdiftx_subcode_get(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_value *uvalue)
+{
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdiftx_mixer_control *ctrl = &dev->control;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ctrl->lock, flags);
+	memcpy(uvalue->value.iec958.subcode, ctrl->user_data,
+	       sizeof(ctrl->user_data));
+	spin_unlock_irqrestore(&ctrl->lock, flags);
+
+	return 0;
+}
+
+static int mchp_spdiftx_subcode_put(struct snd_kcontrol *kcontrol,
+				    struct snd_ctl_elem_value *uvalue)
+{
+	unsigned long flags;
+	struct snd_soc_dai *dai = snd_kcontrol_chip(kcontrol);
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	struct mchp_spdiftx_mixer_control *ctrl = &dev->control;
+	int changed = 0;
+	int i;
+
+	spin_lock_irqsave(&ctrl->lock, flags);
+	for (i = 0; i < ARRAY_SIZE(ctrl->user_data); i++) {
+		if (ctrl->user_data[i] != uvalue->value.iec958.subcode[i])
+			changed = 1;
+
+		ctrl->user_data[i] = uvalue->value.iec958.subcode[i];
+	}
+	if (changed) {
+		if (mchp_spdiftx_is_running(dev)) {
+			/*
+			 * if SPDIF is running, wait for interrupt to write
+			 * user data
+			 */
+			regmap_write(dev->regmap, SPDIFTX_IER,
+				     SPDIFTX_IR_UDRDY);
+		} else {
+			mchp_spdiftx_user_data_write(dev);
+		}
+	}
+	spin_unlock_irqrestore(&ctrl->lock, flags);
+
+	return changed;
+}
+
+static struct snd_kcontrol_new mchp_spdiftx_ctrls[] = {
+	/* Channel status controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdiftx_info,
+		.get = mchp_spdiftx_cs_get,
+		.put = mchp_spdiftx_cs_put,
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.info = mchp_spdiftx_info,
+		.get = mchp_spdiftx_cs_mask,
+	},
+	/* User bits controller */
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "IEC958 Subcode Playback Default",
+		.access = SNDRV_CTL_ELEM_ACCESS_READWRITE,
+		.info = mchp_spdiftx_info,
+		.get = mchp_spdiftx_subcode_get,
+		.put = mchp_spdiftx_subcode_put,
+	},
+};
+
+static int mchp_spdiftx_dai_probe(struct snd_soc_dai *dai)
+{
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+	int ret;
+
+	snd_soc_dai_init_dma_data(dai, &dev->playback, NULL);
+
+	ret = clk_prepare_enable(dev->pclk);
+	if (ret) {
+		dev_err(dev->dev,
+			"failed to enable the peripheral clock: %d\n", ret);
+		return ret;
+	}
+
+	/* Add controls */
+	snd_soc_add_dai_controls(dai, mchp_spdiftx_ctrls,
+				 ARRAY_SIZE(mchp_spdiftx_ctrls));
+
+	return 0;
+}
+
+static int mchp_spdiftx_dai_remove(struct snd_soc_dai *dai)
+{
+	struct mchp_spdiftx_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+	clk_disable_unprepare(dev->pclk);
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver mchp_spdiftx_dai = {
+	.name = "mchp-spdiftx",
+	.probe	= mchp_spdiftx_dai_probe,
+	.remove	= mchp_spdiftx_dai_remove,
+	.playback = {
+		.stream_name = "S/PDIF Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = MCHP_SPDIFTX_RATES,
+		.formats = MCHP_SPDIFTX_FORMATS,
+	},
+	.ops = &mchp_spdiftx_dai_ops,
+};
+
+static const struct snd_soc_component_driver mchp_spdiftx_component = {
+	.name			= "mchp-spdiftx",
+	.legacy_dai_naming	= 1,
+};
+
+static const struct of_device_id mchp_spdiftx_dt_ids[] = {
+	{
+		.compatible = "microchip,sama7g5-spdiftx",
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mchp_spdiftx_dt_ids);
+
+static int mchp_spdiftx_probe(struct platform_device *pdev)
+{
+	struct mchp_spdiftx_dev *dev;
+	struct resource *mem;
+	struct regmap *regmap;
+	void __iomem *base;
+	struct mchp_spdiftx_mixer_control *ctrl;
+	int irq;
+	int err;
+
+	/* Get memory for driver data. */
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	/* Map I/O registers. */
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	regmap = devm_regmap_init_mmio(&pdev->dev, base,
+				       &mchp_spdiftx_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	/* Request IRQ */
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0)
+		return irq;
+
+	err = devm_request_irq(&pdev->dev, irq, mchp_spdiftx_interrupt, 0,
+			       dev_name(&pdev->dev), dev);
+	if (err)
+		return err;
+
+	/* Get the peripheral clock */
+	dev->pclk = devm_clk_get(&pdev->dev, "pclk");
+	if (IS_ERR(dev->pclk)) {
+		err = PTR_ERR(dev->pclk);
+		dev_err(&pdev->dev,
+			"failed to get the peripheral clock: %d\n", err);
+		return err;
+	}
+
+	/* Get the generic clock */
+	dev->gclk = devm_clk_get(&pdev->dev, "gclk");
+	if (IS_ERR(dev->gclk)) {
+		err = PTR_ERR(dev->gclk);
+		dev_err(&pdev->dev,
+			"failed to get the PMC generic clock: %d\n", err);
+		return err;
+	}
+
+	ctrl = &dev->control;
+	spin_lock_init(&ctrl->lock);
+
+	/* Init channel status */
+	ctrl->ch_stat[0] = IEC958_AES0_CON_NOT_COPYRIGHT |
+			   IEC958_AES0_CON_EMPHASIS_NONE;
+
+	dev->dev = &pdev->dev;
+	dev->regmap = regmap;
+	platform_set_drvdata(pdev, dev);
+
+	dev->playback.addr = (dma_addr_t)mem->start + SPDIFTX_CDR;
+	dev->playback.addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
+
+	err = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (err) {
+		dev_err(&pdev->dev, "failed to register PMC: %d\n", err);
+		return err;
+	}
+
+	err = devm_snd_soc_register_component(&pdev->dev,
+					      &mchp_spdiftx_component,
+					      &mchp_spdiftx_dai, 1);
+	if (err)
+		dev_err(&pdev->dev, "failed to register component: %d\n", err);
+
+	return err;
+}
+
+static struct platform_driver mchp_spdiftx_driver = {
+	.probe	= mchp_spdiftx_probe,
+	.driver	= {
+		.name	= "mchp_spdiftx",
+		.of_match_table = of_match_ptr(mchp_spdiftx_dt_ids),
+	},
+};
+
+module_platform_driver(mchp_spdiftx_driver);
+
+MODULE_AUTHOR("Codrin Ciubotariu <codrin.ciubotariu@microchip.com>");
+MODULE_DESCRIPTION("Microchip S/PDIF TX Controller Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/atmel/mikroe-proto.c b/sound/soc/atmel/mikroe-proto.c
new file mode 100644
index 000000000..954460719
--- /dev/null
+++ b/sound/soc/atmel/mikroe-proto.c
@@ -0,0 +1,184 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ASoC driver for PROTO AudioCODEC (with a WM8731)
+ *
+ * Author:      Florian Meier, <koalo@koalo.de>
+ *	      Copyright 2013
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+
+#include "../codecs/wm8731.h"
+
+#define XTAL_RATE 12288000	/* This is fixed on this board */
+
+static int snd_proto_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);
+
+	/* Set proto sysclk */
+	int ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
+					 XTAL_RATE, SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		dev_err(card->dev, "Failed to set WM8731 SYSCLK: %d\n",
+			ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget snd_proto_widget[] = {
+	SND_SOC_DAPM_MIC("Microphone Jack", NULL),
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+};
+
+static const struct snd_soc_dapm_route snd_proto_route[] = {
+	/* speaker connected to LHPOUT/RHPOUT */
+	{"Headphone Jack", NULL, "LHPOUT"},
+	{"Headphone Jack", NULL, "RHPOUT"},
+
+	/* mic is connected to Mic Jack, with WM8731 Mic Bias */
+	{"MICIN", NULL, "Mic Bias"},
+	{"Mic Bias", NULL, "Microphone Jack"},
+};
+
+/* audio machine driver */
+static struct snd_soc_card snd_proto = {
+	.name		= "snd_mikroe_proto",
+	.owner		= THIS_MODULE,
+	.dapm_widgets	= snd_proto_widget,
+	.num_dapm_widgets = ARRAY_SIZE(snd_proto_widget),
+	.dapm_routes	= snd_proto_route,
+	.num_dapm_routes = ARRAY_SIZE(snd_proto_route),
+};
+
+static int snd_proto_probe(struct platform_device *pdev)
+{
+	struct snd_soc_dai_link *dai;
+	struct snd_soc_dai_link_component *comp;
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *codec_np, *cpu_np;
+	struct device_node *bitclkmaster = NULL;
+	struct device_node *framemaster = NULL;
+	unsigned int dai_fmt;
+	int ret = 0;
+
+	if (!np) {
+		dev_err(&pdev->dev, "No device node supplied\n");
+		return -EINVAL;
+	}
+
+	snd_proto.dev = &pdev->dev;
+	ret = snd_soc_of_parse_card_name(&snd_proto, "model");
+	if (ret)
+		return ret;
+
+	dai = devm_kzalloc(&pdev->dev, sizeof(*dai), GFP_KERNEL);
+	if (!dai)
+		return -ENOMEM;
+
+	/* for cpus/codecs/platforms */
+	comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL);
+	if (!comp)
+		return -ENOMEM;
+
+	snd_proto.dai_link = dai;
+	snd_proto.num_links = 1;
+
+	dai->cpus = &comp[0];
+	dai->num_cpus = 1;
+	dai->codecs = &comp[1];
+	dai->num_codecs = 1;
+	dai->platforms = &comp[2];
+	dai->num_platforms = 1;
+
+	dai->name = "WM8731";
+	dai->stream_name = "WM8731 HiFi";
+	dai->codecs->dai_name = "wm8731-hifi";
+	dai->init = &snd_proto_init;
+
+	codec_np = of_parse_phandle(np, "audio-codec", 0);
+	if (!codec_np) {
+		dev_err(&pdev->dev, "audio-codec node missing\n");
+		return -EINVAL;
+	}
+	dai->codecs->of_node = codec_np;
+
+	cpu_np = of_parse_phandle(np, "i2s-controller", 0);
+	if (!cpu_np) {
+		dev_err(&pdev->dev, "i2s-controller missing\n");
+		ret = -EINVAL;
+		goto put_codec_node;
+	}
+	dai->cpus->of_node = cpu_np;
+	dai->platforms->of_node = cpu_np;
+
+	dai_fmt = snd_soc_daifmt_parse_format(np, NULL);
+	snd_soc_daifmt_parse_clock_provider_as_phandle(np, NULL,
+						       &bitclkmaster, &framemaster);
+	if (bitclkmaster != framemaster) {
+		dev_err(&pdev->dev, "Must be the same bitclock and frame master\n");
+		ret = -EINVAL;
+		goto put_cpu_node;
+	}
+	if (bitclkmaster) {
+		if (codec_np == bitclkmaster)
+			dai_fmt |= SND_SOC_DAIFMT_CBP_CFP;
+		else
+			dai_fmt |= SND_SOC_DAIFMT_CBC_CFC;
+	} else {
+		dai_fmt |= snd_soc_daifmt_parse_clock_provider_as_flag(np, NULL);
+	}
+
+
+	dai->dai_fmt = dai_fmt;
+	ret = snd_soc_register_card(&snd_proto);
+	if (ret)
+		dev_err_probe(&pdev->dev, ret,
+			"snd_soc_register_card() failed\n");
+
+
+put_cpu_node:
+	of_node_put(bitclkmaster);
+	of_node_put(framemaster);
+	of_node_put(cpu_np);
+put_codec_node:
+	of_node_put(codec_np);
+	return ret;
+}
+
+static int snd_proto_remove(struct platform_device *pdev)
+{
+	snd_soc_unregister_card(&snd_proto);
+
+	return 0;
+}
+
+static const struct of_device_id snd_proto_of_match[] = {
+	{ .compatible = "mikroe,mikroe-proto", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, snd_proto_of_match);
+
+static struct platform_driver snd_proto_driver = {
+	.driver = {
+		.name   = "snd-mikroe-proto",
+		.of_match_table = snd_proto_of_match,
+	},
+	.probe	  = snd_proto_probe,
+	.remove	 = snd_proto_remove,
+};
+
+module_platform_driver(snd_proto_driver);
+
+MODULE_AUTHOR("Florian Meier");
+MODULE_DESCRIPTION("ASoC Driver for PROTO board (WM8731)");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
new file mode 100644
index 000000000..1430642c8
--- /dev/null
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -0,0 +1,219 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * sam9g20_wm8731  --  SoC audio for AT91SAM9G20-based
+ * 			ATMEL AT91SAM9G20ek board.
+ *
+ *  Copyright (C) 2005 SAN People
+ *  Copyright (C) 2008 Atmel
+ *
+ * Authors: Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ *
+ * Based on ati_b1_wm8731.c by:
+ * Frank Mandarino <fmandarino@endrelia.com>
+ * Copyright 2006 Endrelia Technologies Inc.
+ * Based on corgi.c by:
+ * Copyright 2005 Wolfson Microelectronics PLC.
+ * Copyright 2005 Openedhand Ltd.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/of.h>
+
+#include <linux/atmel-ssc.h>
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "../codecs/wm8731.h"
+#include "atmel-pcm.h"
+#include "atmel_ssc_dai.h"
+
+#define MCLK_RATE 12000000
+
+/*
+ * As shipped the board does not have inputs.  However, it is relatively
+ * straightforward to modify the board to hook them up so support is left
+ * in the driver.
+ */
+#undef ENABLE_MIC_INPUT
+
+static const struct snd_soc_dapm_widget at91sam9g20ek_dapm_widgets[] = {
+	SND_SOC_DAPM_MIC("Int Mic", NULL),
+	SND_SOC_DAPM_SPK("Ext Spk", NULL),
+};
+
+static const struct snd_soc_dapm_route intercon[] = {
+
+	/* speaker connected to LHPOUT/RHPOUT */
+	{"Ext Spk", NULL, "LHPOUT"},
+	{"Ext Spk", NULL, "RHPOUT"},
+
+	/* mic is connected to Mic Jack, with WM8731 Mic Bias */
+	{"MICIN", NULL, "Mic Bias"},
+	{"Mic Bias", NULL, "Int Mic"},
+};
+
+/*
+ * Logic for a wm8731 as connected on a at91sam9g20ek board.
+ */
+static int at91sam9g20ek_wm8731_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct device *dev = rtd->dev;
+	int ret;
+
+	dev_dbg(dev, "%s called\n", __func__);
+
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_MCLK,
+				     MCLK_RATE, SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set WM8731 SYSCLK: %d\n", ret);
+		return ret;
+	}
+
+#ifndef ENABLE_MIC_INPUT
+	snd_soc_dapm_nc_pin(&rtd->card->dapm, "Int Mic");
+#endif
+
+	return 0;
+}
+
+SND_SOC_DAILINK_DEFS(pcm,
+	DAILINK_COMP_ARRAY(COMP_CPU("at91rm9200_ssc.0")),
+	DAILINK_COMP_ARRAY(COMP_CODEC("wm8731.0-001b", "wm8731-hifi")),
+	DAILINK_COMP_ARRAY(COMP_PLATFORM("at91rm9200_ssc.0")));
+
+static struct snd_soc_dai_link at91sam9g20ek_dai = {
+	.name = "WM8731",
+	.stream_name = "WM8731 PCM",
+	.init = at91sam9g20ek_wm8731_init,
+	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+		   SND_SOC_DAIFMT_CBP_CFP,
+	SND_SOC_DAILINK_REG(pcm),
+};
+
+static struct snd_soc_card snd_soc_at91sam9g20ek = {
+	.name = "AT91SAMG20-EK",
+	.owner = THIS_MODULE,
+	.dai_link = &at91sam9g20ek_dai,
+	.num_links = 1,
+
+	.dapm_widgets = at91sam9g20ek_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(at91sam9g20ek_dapm_widgets),
+	.dapm_routes = intercon,
+	.num_dapm_routes = ARRAY_SIZE(intercon),
+	.fully_routed = true,
+};
+
+static int at91sam9g20ek_audio_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *codec_np, *cpu_np;
+	struct snd_soc_card *card = &snd_soc_at91sam9g20ek;
+	int ret;
+
+	if (!np) {
+		return -ENODEV;
+	}
+
+	ret = atmel_ssc_set_audio(0);
+	if (ret) {
+		dev_err(&pdev->dev, "ssc channel is not valid: %d\n", ret);
+		return ret;
+	}
+
+	card->dev = &pdev->dev;
+
+	/* Parse device node info */
+	ret = snd_soc_of_parse_card_name(card, "atmel,model");
+	if (ret)
+		goto err;
+
+	ret = snd_soc_of_parse_audio_routing(card,
+		"atmel,audio-routing");
+	if (ret)
+		goto err;
+
+	/* Parse codec info */
+	at91sam9g20ek_dai.codecs->name = NULL;
+	codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
+	if (!codec_np) {
+		dev_err(&pdev->dev, "codec info missing\n");
+		ret = -EINVAL;
+		goto err;
+	}
+	at91sam9g20ek_dai.codecs->of_node = codec_np;
+
+	/* Parse dai and platform info */
+	at91sam9g20ek_dai.cpus->dai_name = NULL;
+	at91sam9g20ek_dai.platforms->name = NULL;
+	cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
+	if (!cpu_np) {
+		dev_err(&pdev->dev, "dai and pcm info missing\n");
+		of_node_put(codec_np);
+		ret = -EINVAL;
+		goto err;
+	}
+	at91sam9g20ek_dai.cpus->of_node = cpu_np;
+	at91sam9g20ek_dai.platforms->of_node = cpu_np;
+
+	of_node_put(codec_np);
+	of_node_put(cpu_np);
+
+	ret = snd_soc_register_card(card);
+	if (ret) {
+		dev_err_probe(&pdev->dev, ret,
+			      "snd_soc_register_card() failed\n");
+		goto err;
+	}
+
+	return 0;
+
+err:
+	atmel_ssc_put_audio(0);
+	return ret;
+}
+
+static int at91sam9g20ek_audio_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	snd_soc_unregister_card(card);
+	atmel_ssc_put_audio(0);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id at91sam9g20ek_wm8731_dt_ids[] = {
+	{ .compatible = "atmel,at91sam9g20ek-wm8731-audio", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, at91sam9g20ek_wm8731_dt_ids);
+#endif
+
+static struct platform_driver at91sam9g20ek_audio_driver = {
+	.driver = {
+		.name	= "at91sam9g20ek-audio",
+		.of_match_table = of_match_ptr(at91sam9g20ek_wm8731_dt_ids),
+	},
+	.probe	= at91sam9g20ek_audio_probe,
+	.remove	= at91sam9g20ek_audio_remove,
+};
+
+module_platform_driver(at91sam9g20ek_audio_driver);
+
+/* Module information */
+MODULE_AUTHOR("Sedji Gaouaou <sedji.gaouaou@atmel.com>");
+MODULE_DESCRIPTION("ALSA SoC AT91SAM9G20EK_WM8731");
+MODULE_ALIAS("platform:at91sam9g20ek-audio");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/atmel/sam9x5_wm8731.c b/sound/soc/atmel/sam9x5_wm8731.c
new file mode 100644
index 000000000..99310e40e
--- /dev/null
+++ b/sound/soc/atmel/sam9x5_wm8731.c
@@ -0,0 +1,210 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * sam9x5_wm8731   --	SoC audio for AT91SAM9X5-based boards
+ *			that are using WM8731 as codec.
+ *
+ *  Copyright (C) 2011 Atmel,
+ *		  Nicolas Ferre <nicolas.ferre@atmel.com>
+ *
+ *  Copyright (C) 2013 Paratronic,
+ *		  Richard Genoud <richard.genoud@gmail.com>
+ *
+ * Based on sam9g20_wm8731.c by:
+ * Sedji Gaouaou <sedji.gaouaou@atmel.com>
+ */
+#include <linux/of.h>
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/platform_device.h>
+#include <linux/device.h>
+
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <sound/soc-dapm.h>
+
+#include "../codecs/wm8731.h"
+#include "atmel_ssc_dai.h"
+
+
+#define MCLK_RATE 12288000
+
+#define DRV_NAME "sam9x5-snd-wm8731"
+
+struct sam9x5_drvdata {
+	int ssc_id;
+};
+
+/*
+ * Logic for a wm8731 as connected on a at91sam9x5ek based board.
+ */
+static int sam9x5_wm8731_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct device *dev = rtd->dev;
+	int ret;
+
+	dev_dbg(dev, "%s called\n", __func__);
+
+	/* set the codec system clock for DAC and ADC */
+	ret = snd_soc_dai_set_sysclk(codec_dai, WM8731_SYSCLK_XTAL,
+				     MCLK_RATE, SND_SOC_CLOCK_IN);
+	if (ret < 0) {
+		dev_err(dev, "Failed to set WM8731 SYSCLK: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+/*
+ * Audio paths on at91sam9x5ek board:
+ *
+ *  |A| ------------> |      | ---R----> Headphone Jack
+ *  |T| <----\        |  WM  | ---L--/
+ *  |9| ---> CLK <--> | 8731 | <--R----- Line In Jack
+ *  |1| <------------ |      | <--L--/
+ */
+static const struct snd_soc_dapm_widget sam9x5_dapm_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_LINE("Line In Jack", NULL),
+};
+
+static int sam9x5_wm8731_driver_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *codec_np, *cpu_np;
+	struct snd_soc_card *card;
+	struct snd_soc_dai_link *dai;
+	struct sam9x5_drvdata *priv;
+	struct snd_soc_dai_link_component *comp;
+	int ret;
+
+	if (!np) {
+		dev_err(&pdev->dev, "No device node supplied\n");
+		return -EINVAL;
+	}
+
+	card = devm_kzalloc(&pdev->dev, sizeof(*card), GFP_KERNEL);
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	dai = devm_kzalloc(&pdev->dev, sizeof(*dai), GFP_KERNEL);
+	comp = devm_kzalloc(&pdev->dev, 3 * sizeof(*comp), GFP_KERNEL);
+	if (!dai || !card || !priv || !comp) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	card->dev = &pdev->dev;
+	card->owner = THIS_MODULE;
+	card->dai_link = dai;
+	card->num_links = 1;
+	card->dapm_widgets = sam9x5_dapm_widgets;
+	card->num_dapm_widgets = ARRAY_SIZE(sam9x5_dapm_widgets);
+
+	dai->cpus = &comp[0];
+	dai->num_cpus = 1;
+	dai->codecs = &comp[1];
+	dai->num_codecs = 1;
+	dai->platforms = &comp[2];
+	dai->num_platforms = 1;
+
+	dai->name = "WM8731";
+	dai->stream_name = "WM8731 PCM";
+	dai->codecs->dai_name = "wm8731-hifi";
+	dai->init = sam9x5_wm8731_init;
+	dai->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF
+		| SND_SOC_DAIFMT_CBP_CFP;
+
+	ret = snd_soc_of_parse_card_name(card, "atmel,model");
+	if (ret) {
+		dev_err(&pdev->dev, "atmel,model node missing\n");
+		goto out;
+	}
+
+	ret = snd_soc_of_parse_audio_routing(card, "atmel,audio-routing");
+	if (ret) {
+		dev_err(&pdev->dev, "atmel,audio-routing node missing\n");
+		goto out;
+	}
+
+	codec_np = of_parse_phandle(np, "atmel,audio-codec", 0);
+	if (!codec_np) {
+		dev_err(&pdev->dev, "atmel,audio-codec node missing\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	dai->codecs->of_node = codec_np;
+
+	cpu_np = of_parse_phandle(np, "atmel,ssc-controller", 0);
+	if (!cpu_np) {
+		dev_err(&pdev->dev, "atmel,ssc-controller node missing\n");
+		ret = -EINVAL;
+		goto out_put_codec_np;
+	}
+	dai->cpus->of_node = cpu_np;
+	dai->platforms->of_node = cpu_np;
+
+	priv->ssc_id = of_alias_get_id(cpu_np, "ssc");
+
+	ret = atmel_ssc_set_audio(priv->ssc_id);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "Failed to set SSC %d for audio: %d\n",
+			ret, priv->ssc_id);
+		goto out_put_cpu_np;
+	}
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret) {
+		dev_err(&pdev->dev, "Platform device allocation failed\n");
+		goto out_put_audio;
+	}
+
+	dev_dbg(&pdev->dev, "%s ok\n", __func__);
+
+	goto out_put_cpu_np;
+
+out_put_audio:
+	atmel_ssc_put_audio(priv->ssc_id);
+out_put_cpu_np:
+	of_node_put(cpu_np);
+out_put_codec_np:
+	of_node_put(codec_np);
+out:
+	return ret;
+}
+
+static int sam9x5_wm8731_driver_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct sam9x5_drvdata *priv = card->drvdata;
+
+	atmel_ssc_put_audio(priv->ssc_id);
+
+	return 0;
+}
+
+static const struct of_device_id sam9x5_wm8731_of_match[] = {
+	{ .compatible = "atmel,sam9x5-wm8731-audio", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, sam9x5_wm8731_of_match);
+
+static struct platform_driver sam9x5_wm8731_driver = {
+	.driver = {
+		.name = DRV_NAME,
+		.of_match_table = of_match_ptr(sam9x5_wm8731_of_match),
+	},
+	.probe = sam9x5_wm8731_driver_probe,
+	.remove = sam9x5_wm8731_driver_remove,
+};
+module_platform_driver(sam9x5_wm8731_driver);
+
+/* Module information */
+MODULE_AUTHOR("Nicolas Ferre <nicolas.ferre@atmel.com>");
+MODULE_AUTHOR("Richard Genoud <richard.genoud@gmail.com>");
+MODULE_DESCRIPTION("ALSA SoC machine driver for AT91SAM9x5 - WM8731");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/atmel/tse850-pcm5142.c b/sound/soc/atmel/tse850-pcm5142.c
new file mode 100644
index 000000000..ef537de77
--- /dev/null
+++ b/sound/soc/atmel/tse850-pcm5142.c
@@ -0,0 +1,446 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// TSE-850 audio - ASoC driver for the Axentia TSE-850 with a PCM5142 codec
+//
+// Copyright (C) 2016 Axentia Technologies AB
+//
+// Author: Peter Rosin <peda@axentia.se>
+//
+//               loop1 relays
+//   IN1 +---o  +------------+  o---+ OUT1
+//            \                /
+//             +              +
+//             |   /          |
+//             +--o  +--.     |
+//             |  add   |     |
+//             |        V     |
+//             |      .---.   |
+//   DAC +----------->|Sum|---+
+//             |      '---'   |
+//             |              |
+//             +              +
+//
+//   IN2 +---o--+------------+--o---+ OUT2
+//               loop2 relays
+//
+// The 'loop1' gpio pin controls two relays, which are either in loop
+// position, meaning that input and output are directly connected, or
+// they are in mixer position, meaning that the signal is passed through
+// the 'Sum' mixer. Similarly for 'loop2'.
+//
+// In the above, the 'loop1' relays are inactive, thus feeding IN1 to the
+// mixer (if 'add' is active) and feeding the mixer output to OUT1. The
+// 'loop2' relays are active, short-cutting the TSE-850 from channel 2.
+// IN1, IN2, OUT1 and OUT2 are TSE-850 connectors and DAC is the PCB name
+// of the (filtered) output from the PCM5142 codec.
+
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/regulator/consumer.h>
+
+#include <sound/soc.h>
+#include <sound/pcm_params.h>
+
+struct tse850_priv {
+	struct gpio_desc *add;
+	struct gpio_desc *loop1;
+	struct gpio_desc *loop2;
+
+	struct regulator *ana;
+
+	int add_cache;
+	int loop1_cache;
+	int loop2_cache;
+};
+
+static int tse850_get_mux1(struct snd_kcontrol *kctrl,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kctrl);
+	struct snd_soc_card *card = dapm->card;
+	struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card);
+
+	ucontrol->value.enumerated.item[0] = tse850->loop1_cache;
+
+	return 0;
+}
+
+static int tse850_put_mux1(struct snd_kcontrol *kctrl,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kctrl);
+	struct snd_soc_card *card = dapm->card;
+	struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card);
+	struct soc_enum *e = (struct soc_enum *)kctrl->private_value;
+	unsigned int val = ucontrol->value.enumerated.item[0];
+
+	if (val >= e->items)
+		return -EINVAL;
+
+	gpiod_set_value_cansleep(tse850->loop1, val);
+	tse850->loop1_cache = val;
+
+	return snd_soc_dapm_put_enum_double(kctrl, ucontrol);
+}
+
+static int tse850_get_mux2(struct snd_kcontrol *kctrl,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kctrl);
+	struct snd_soc_card *card = dapm->card;
+	struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card);
+
+	ucontrol->value.enumerated.item[0] = tse850->loop2_cache;
+
+	return 0;
+}
+
+static int tse850_put_mux2(struct snd_kcontrol *kctrl,
+			   struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kctrl);
+	struct snd_soc_card *card = dapm->card;
+	struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card);
+	struct soc_enum *e = (struct soc_enum *)kctrl->private_value;
+	unsigned int val = ucontrol->value.enumerated.item[0];
+
+	if (val >= e->items)
+		return -EINVAL;
+
+	gpiod_set_value_cansleep(tse850->loop2, val);
+	tse850->loop2_cache = val;
+
+	return snd_soc_dapm_put_enum_double(kctrl, ucontrol);
+}
+
+static int tse850_get_mix(struct snd_kcontrol *kctrl,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kctrl);
+	struct snd_soc_card *card = dapm->card;
+	struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card);
+
+	ucontrol->value.enumerated.item[0] = tse850->add_cache;
+
+	return 0;
+}
+
+static int tse850_put_mix(struct snd_kcontrol *kctrl,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kctrl);
+	struct snd_soc_card *card = dapm->card;
+	struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card);
+	int connect = !!ucontrol->value.integer.value[0];
+
+	if (tse850->add_cache == connect)
+		return 0;
+
+	/*
+	 * Hmmm, this gpiod_set_value_cansleep call should probably happen
+	 * inside snd_soc_dapm_mixer_update_power in the loop.
+	 */
+	gpiod_set_value_cansleep(tse850->add, connect);
+	tse850->add_cache = connect;
+
+	snd_soc_dapm_mixer_update_power(dapm, kctrl, connect, NULL);
+	return 1;
+}
+
+static int tse850_get_ana(struct snd_kcontrol *kctrl,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kctrl);
+	struct snd_soc_card *card = dapm->card;
+	struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card);
+	int ret;
+
+	ret = regulator_get_voltage(tse850->ana);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * Map regulator output values like so:
+	 *      -11.5V to "Low" (enum 0)
+	 * 11.5V-12.5V to "12V" (enum 1)
+	 * 12.5V-13.5V to "13V" (enum 2)
+	 *     ...
+	 * 18.5V-19.5V to "19V" (enum 8)
+	 * 19.5V-      to "20V" (enum 9)
+	 */
+	if (ret < 11000000)
+		ret = 11000000;
+	else if (ret > 20000000)
+		ret = 20000000;
+	ret -= 11000000;
+	ret = (ret + 500000) / 1000000;
+
+	ucontrol->value.enumerated.item[0] = ret;
+
+	return 0;
+}
+
+static int tse850_put_ana(struct snd_kcontrol *kctrl,
+			  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dapm_context *dapm = snd_soc_dapm_kcontrol_dapm(kctrl);
+	struct snd_soc_card *card = dapm->card;
+	struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card);
+	struct soc_enum *e = (struct soc_enum *)kctrl->private_value;
+	unsigned int uV = ucontrol->value.enumerated.item[0];
+	int ret;
+
+	if (uV >= e->items)
+		return -EINVAL;
+
+	/*
+	 * Map enum zero (Low) to 2 volts on the regulator, do this since
+	 * the ana regulator is supplied by the system 12V voltage and
+	 * requesting anything below the system voltage causes the system
+	 * voltage to be passed through the regulator. Also, the ana
+	 * regulator induces noise when requesting voltages near the
+	 * system voltage. So, by mapping Low to 2V, that noise is
+	 * eliminated when all that is needed is 12V (the system voltage).
+	 */
+	if (uV)
+		uV = 11000000 + (1000000 * uV);
+	else
+		uV = 2000000;
+
+	ret = regulator_set_voltage(tse850->ana, uV, uV);
+	if (ret < 0)
+		return ret;
+
+	return snd_soc_dapm_put_enum_double(kctrl, ucontrol);
+}
+
+static const char * const mux_text[] = { "Mixer", "Loop" };
+
+static const struct soc_enum mux_enum =
+	SOC_ENUM_SINGLE(SND_SOC_NOPM, 0, ARRAY_SIZE(mux_text), mux_text);
+
+static const struct snd_kcontrol_new mux1 =
+	SOC_DAPM_ENUM_EXT("MUX1", mux_enum, tse850_get_mux1, tse850_put_mux1);
+
+static const struct snd_kcontrol_new mux2 =
+	SOC_DAPM_ENUM_EXT("MUX2", mux_enum, tse850_get_mux2, tse850_put_mux2);
+
+#define TSE850_DAPM_SINGLE_EXT(xname, reg, shift, max, invert, xget, xput) \
+{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
+	.info = snd_soc_info_volsw, \
+	.get = xget, \
+	.put = xput, \
+	.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
+
+static const struct snd_kcontrol_new mix[] = {
+	TSE850_DAPM_SINGLE_EXT("IN Switch", SND_SOC_NOPM, 0, 1, 0,
+			       tse850_get_mix, tse850_put_mix),
+};
+
+static const char * const ana_text[] = {
+	"Low", "12V", "13V", "14V", "15V", "16V", "17V", "18V", "19V", "20V"
+};
+
+static const struct soc_enum ana_enum =
+	SOC_ENUM_SINGLE(SND_SOC_NOPM, 0, ARRAY_SIZE(ana_text), ana_text);
+
+static const struct snd_kcontrol_new out =
+	SOC_DAPM_ENUM_EXT("ANA", ana_enum, tse850_get_ana, tse850_put_ana);
+
+static const struct snd_soc_dapm_widget tse850_dapm_widgets[] = {
+	SND_SOC_DAPM_LINE("OUT1", NULL),
+	SND_SOC_DAPM_LINE("OUT2", NULL),
+	SND_SOC_DAPM_LINE("IN1", NULL),
+	SND_SOC_DAPM_LINE("IN2", NULL),
+	SND_SOC_DAPM_INPUT("DAC"),
+	SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
+	SOC_MIXER_ARRAY("MIX", SND_SOC_NOPM, 0, 0, mix),
+	SND_SOC_DAPM_MUX("MUX1", SND_SOC_NOPM, 0, 0, &mux1),
+	SND_SOC_DAPM_MUX("MUX2", SND_SOC_NOPM, 0, 0, &mux2),
+	SND_SOC_DAPM_OUT_DRV("OUT", SND_SOC_NOPM, 0, 0, &out, 1),
+};
+
+/*
+ * These connections are not entirely correct, since both IN1 and IN2
+ * are always fed to MIX (if the "IN switch" is set so), i.e. without
+ * regard to the loop1 and loop2 relays that according to this only
+ * control MUX1 and MUX2 but in fact also control how the input signals
+ * are routed.
+ * But, 1) I don't know how to do it right, and 2) it doesn't seem to
+ * matter in practice since nothing is powered in those sections anyway.
+ */
+static const struct snd_soc_dapm_route tse850_intercon[] = {
+	{ "OUT1", NULL, "MUX1" },
+	{ "OUT2", NULL, "MUX2" },
+
+	{ "MUX1", "Loop",  "IN1" },
+	{ "MUX1", "Mixer", "OUT" },
+
+	{ "MUX2", "Loop",  "IN2" },
+	{ "MUX2", "Mixer", "OUT" },
+
+	{ "OUT", NULL, "MIX" },
+
+	{ "MIX", NULL, "DAC" },
+	{ "MIX", "IN Switch", "IN1" },
+	{ "MIX", "IN Switch", "IN2" },
+
+	/* connect board input to the codec left channel output pin */
+	{ "DAC", NULL, "OUTL" },
+};
+
+SND_SOC_DAILINK_DEFS(pcm,
+	DAILINK_COMP_ARRAY(COMP_EMPTY()),
+	DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "pcm512x-hifi")),
+	DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link tse850_dailink = {
+	.name = "TSE-850",
+	.stream_name = "TSE-850-PCM",
+	.dai_fmt = SND_SOC_DAIFMT_I2S
+		 | SND_SOC_DAIFMT_NB_NF
+		 | SND_SOC_DAIFMT_CBP_CFC,
+	SND_SOC_DAILINK_REG(pcm),
+};
+
+static struct snd_soc_card tse850_card = {
+	.name = "TSE-850-ASoC",
+	.owner = THIS_MODULE,
+	.dai_link = &tse850_dailink,
+	.num_links = 1,
+	.dapm_widgets = tse850_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(tse850_dapm_widgets),
+	.dapm_routes = tse850_intercon,
+	.num_dapm_routes = ARRAY_SIZE(tse850_intercon),
+	.fully_routed = true,
+};
+
+static int tse850_dt_init(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *codec_np, *cpu_np;
+	struct snd_soc_dai_link *dailink = &tse850_dailink;
+
+	if (!np) {
+		dev_err(&pdev->dev, "only device tree supported\n");
+		return -EINVAL;
+	}
+
+	cpu_np = of_parse_phandle(np, "axentia,cpu-dai", 0);
+	if (!cpu_np) {
+		dev_err(&pdev->dev, "failed to get cpu dai\n");
+		return -EINVAL;
+	}
+	dailink->cpus->of_node = cpu_np;
+	dailink->platforms->of_node = cpu_np;
+	of_node_put(cpu_np);
+
+	codec_np = of_parse_phandle(np, "axentia,audio-codec", 0);
+	if (!codec_np) {
+		dev_err(&pdev->dev, "failed to get codec info\n");
+		return -EINVAL;
+	}
+	dailink->codecs->of_node = codec_np;
+	of_node_put(codec_np);
+
+	return 0;
+}
+
+static int tse850_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = &tse850_card;
+	struct device *dev = card->dev = &pdev->dev;
+	struct tse850_priv *tse850;
+	int ret;
+
+	tse850 = devm_kzalloc(dev, sizeof(*tse850), GFP_KERNEL);
+	if (!tse850)
+		return -ENOMEM;
+
+	snd_soc_card_set_drvdata(card, tse850);
+
+	ret = tse850_dt_init(pdev);
+	if (ret) {
+		dev_err(dev, "failed to init dt info\n");
+		return ret;
+	}
+
+	tse850->add = devm_gpiod_get(dev, "axentia,add", GPIOD_OUT_HIGH);
+	if (IS_ERR(tse850->add))
+		return dev_err_probe(dev, PTR_ERR(tse850->add),
+				     "failed to get 'add' gpio\n");
+	tse850->add_cache = 1;
+
+	tse850->loop1 = devm_gpiod_get(dev, "axentia,loop1", GPIOD_OUT_HIGH);
+	if (IS_ERR(tse850->loop1))
+		return dev_err_probe(dev, PTR_ERR(tse850->loop1),
+				     "failed to get 'loop1' gpio\n");
+	tse850->loop1_cache = 1;
+
+	tse850->loop2 = devm_gpiod_get(dev, "axentia,loop2", GPIOD_OUT_HIGH);
+	if (IS_ERR(tse850->loop2))
+		return dev_err_probe(dev, PTR_ERR(tse850->loop2),
+				     "failed to get 'loop2' gpio\n");
+	tse850->loop2_cache = 1;
+
+	tse850->ana = devm_regulator_get(dev, "axentia,ana");
+	if (IS_ERR(tse850->ana))
+		return dev_err_probe(dev, PTR_ERR(tse850->ana),
+				     "failed to get 'ana' regulator\n");
+
+	ret = regulator_enable(tse850->ana);
+	if (ret < 0) {
+		dev_err(dev, "failed to enable the 'ana' regulator\n");
+		return ret;
+	}
+
+	ret = snd_soc_register_card(card);
+	if (ret) {
+		dev_err(dev, "snd_soc_register_card failed\n");
+		goto err_disable_ana;
+	}
+
+	return 0;
+
+err_disable_ana:
+	regulator_disable(tse850->ana);
+	return ret;
+}
+
+static int tse850_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+	struct tse850_priv *tse850 = snd_soc_card_get_drvdata(card);
+
+	snd_soc_unregister_card(card);
+	regulator_disable(tse850->ana);
+
+	return 0;
+}
+
+static const struct of_device_id tse850_dt_ids[] = {
+	{ .compatible = "axentia,tse850-pcm5142", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, tse850_dt_ids);
+
+static struct platform_driver tse850_driver = {
+	.driver = {
+		.name = "axentia-tse850-pcm5142",
+		.of_match_table = of_match_ptr(tse850_dt_ids),
+	},
+	.probe = tse850_probe,
+	.remove = tse850_remove,
+};
+
+module_platform_driver(tse850_driver);
+
+/* Module information */
+MODULE_AUTHOR("Peter Rosin <peda@axentia.se>");
+MODULE_DESCRIPTION("ALSA SoC driver for TSE-850 with PCM5142 codec");
+MODULE_LICENSE("GPL v2");