Adding upstream version 6.1.76.upstream/6.1.76

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

11 files changed, 7625 insertions, 0 deletions

diff --git a/drivers/gpu/drm/bridge/synopsys/Kconfig b/drivers/gpu/drm/bridge/synopsys/Kconfig
new file mode 100644
index 000000000..15fc182d0
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/Kconfig
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config DRM_DW_HDMI
+	tristate
+	select DRM_DISPLAY_HDMI_HELPER
+	select DRM_DISPLAY_HELPER
+	select DRM_KMS_HELPER
+	select REGMAP_MMIO
+	select CEC_CORE if CEC_NOTIFIER
+
+config DRM_DW_HDMI_AHB_AUDIO
+	tristate "Synopsys Designware AHB Audio interface"
+	depends on DRM_DW_HDMI && SND
+	select SND_PCM
+	select SND_PCM_ELD
+	select SND_PCM_IEC958
+	help
+	  Support the AHB Audio interface which is part of the Synopsys
+	  Designware HDMI block.  This is used in conjunction with
+	  the i.MX6 HDMI driver.
+
+config DRM_DW_HDMI_I2S_AUDIO
+	tristate "Synopsys Designware I2S Audio interface"
+	depends on SND_SOC
+	depends on DRM_DW_HDMI
+	select SND_SOC_HDMI_CODEC
+	help
+	  Support the I2S Audio interface which is part of the Synopsys
+	  Designware HDMI block.
+
+config DRM_DW_HDMI_GP_AUDIO
+	tristate "Synopsys Designware GP Audio interface"
+	depends on DRM_DW_HDMI && SND
+	select SND_PCM
+	select SND_PCM_ELD
+	select SND_PCM_IEC958
+	help
+	  Support the GP Audio interface which is part of the Synopsys
+	  Designware HDMI block.
+
+config DRM_DW_HDMI_CEC
+	tristate "Synopsis Designware CEC interface"
+	depends on DRM_DW_HDMI
+	select CEC_CORE
+	select CEC_NOTIFIER
+	help
+	  Support the CE interface which is part of the Synopsys
+	  Designware HDMI block.
+
+config DRM_DW_MIPI_DSI
+	tristate
+	select DRM_KMS_HELPER
+	select DRM_MIPI_DSI
+	select DRM_PANEL_BRIDGE
diff --git a/drivers/gpu/drm/bridge/synopsys/Makefile b/drivers/gpu/drm/bridge/synopsys/Makefile
new file mode 100644
index 000000000..ce715562e
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_DRM_DW_HDMI) += dw-hdmi.o
+obj-$(CONFIG_DRM_DW_HDMI_AHB_AUDIO) += dw-hdmi-ahb-audio.o
+obj-$(CONFIG_DRM_DW_HDMI_GP_AUDIO) += dw-hdmi-gp-audio.o
+obj-$(CONFIG_DRM_DW_HDMI_I2S_AUDIO) += dw-hdmi-i2s-audio.o
+obj-$(CONFIG_DRM_DW_HDMI_CEC) += dw-hdmi-cec.o
+
+obj-$(CONFIG_DRM_DW_MIPI_DSI) += dw-mipi-dsi.o
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c
new file mode 100644
index 000000000..4efb62bcd
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-ahb-audio.c
@@ -0,0 +1,640 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * DesignWare HDMI audio driver
+ *
+ * Written and tested against the Designware HDMI Tx found in iMX6.
+ */
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <drm/bridge/dw_hdmi.h>
+#include <drm/drm_edid.h>
+
+#include <sound/asoundef.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_drm_eld.h>
+#include <sound/pcm_iec958.h>
+
+#include "dw-hdmi-audio.h"
+
+#define DRIVER_NAME "dw-hdmi-ahb-audio"
+
+/* Provide some bits rather than bit offsets */
+enum {
+	HDMI_AHB_DMA_CONF0_SW_FIFO_RST = BIT(7),
+	HDMI_AHB_DMA_CONF0_EN_HLOCK = BIT(3),
+	HDMI_AHB_DMA_START_START = BIT(0),
+	HDMI_AHB_DMA_STOP_STOP = BIT(0),
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_ERROR = BIT(5),
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_LOST = BIT(4),
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_RETRY = BIT(3),
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_DONE = BIT(2),
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_BUFFFULL = BIT(1),
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_BUFFEMPTY = BIT(0),
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL =
+		HDMI_IH_MUTE_AHBDMAAUD_STAT0_ERROR |
+		HDMI_IH_MUTE_AHBDMAAUD_STAT0_LOST |
+		HDMI_IH_MUTE_AHBDMAAUD_STAT0_RETRY |
+		HDMI_IH_MUTE_AHBDMAAUD_STAT0_DONE |
+		HDMI_IH_MUTE_AHBDMAAUD_STAT0_BUFFFULL |
+		HDMI_IH_MUTE_AHBDMAAUD_STAT0_BUFFEMPTY,
+	HDMI_IH_AHBDMAAUD_STAT0_ERROR = BIT(5),
+	HDMI_IH_AHBDMAAUD_STAT0_LOST = BIT(4),
+	HDMI_IH_AHBDMAAUD_STAT0_RETRY = BIT(3),
+	HDMI_IH_AHBDMAAUD_STAT0_DONE = BIT(2),
+	HDMI_IH_AHBDMAAUD_STAT0_BUFFFULL = BIT(1),
+	HDMI_IH_AHBDMAAUD_STAT0_BUFFEMPTY = BIT(0),
+	HDMI_IH_AHBDMAAUD_STAT0_ALL =
+		HDMI_IH_AHBDMAAUD_STAT0_ERROR |
+		HDMI_IH_AHBDMAAUD_STAT0_LOST |
+		HDMI_IH_AHBDMAAUD_STAT0_RETRY |
+		HDMI_IH_AHBDMAAUD_STAT0_DONE |
+		HDMI_IH_AHBDMAAUD_STAT0_BUFFFULL |
+		HDMI_IH_AHBDMAAUD_STAT0_BUFFEMPTY,
+	HDMI_AHB_DMA_CONF0_INCR16 = 2 << 1,
+	HDMI_AHB_DMA_CONF0_INCR8 = 1 << 1,
+	HDMI_AHB_DMA_CONF0_INCR4 = 0,
+	HDMI_AHB_DMA_CONF0_BURST_MODE = BIT(0),
+	HDMI_AHB_DMA_MASK_DONE = BIT(7),
+
+	HDMI_REVISION_ID = 0x0001,
+	HDMI_IH_AHBDMAAUD_STAT0 = 0x0109,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0 = 0x0189,
+	HDMI_AHB_DMA_CONF0 = 0x3600,
+	HDMI_AHB_DMA_START = 0x3601,
+	HDMI_AHB_DMA_STOP = 0x3602,
+	HDMI_AHB_DMA_THRSLD = 0x3603,
+	HDMI_AHB_DMA_STRADDR0 = 0x3604,
+	HDMI_AHB_DMA_STPADDR0 = 0x3608,
+	HDMI_AHB_DMA_MASK = 0x3614,
+	HDMI_AHB_DMA_POL = 0x3615,
+	HDMI_AHB_DMA_CONF1 = 0x3616,
+	HDMI_AHB_DMA_BUFFPOL = 0x361a,
+};
+
+struct dw_hdmi_channel_conf {
+	u8 conf1;
+	u8 ca;
+};
+
+/*
+ * The default mapping of ALSA channels to HDMI channels and speaker
+ * allocation bits.  Note that we can't do channel remapping here -
+ * channels must be in the same order.
+ *
+ * Mappings for alsa-lib pcm/surround*.conf files:
+ *
+ *		Front	Sur4.0	Sur4.1	Sur5.0	Sur5.1	Sur7.1
+ * Channels	2	4	6	6	6	8
+ *
+ * Our mapping from ALSA channel to CEA686D speaker name and HDMI channel:
+ *
+ *				Number of ALSA channels
+ * ALSA Channel	2	3	4	5	6	7	8
+ * 0		FL:0	=	=	=	=	=	=
+ * 1		FR:1	=	=	=	=	=	=
+ * 2			FC:3	RL:4	LFE:2	=	=	=
+ * 3				RR:5	RL:4	FC:3	=	=
+ * 4					RR:5	RL:4	=	=
+ * 5						RR:5	=	=
+ * 6							RC:6	=
+ * 7							RLC/FRC	RLC/FRC
+ */
+static struct dw_hdmi_channel_conf default_hdmi_channel_config[7] = {
+	{ 0x03, 0x00 },	/* FL,FR */
+	{ 0x0b, 0x02 },	/* FL,FR,FC */
+	{ 0x33, 0x08 },	/* FL,FR,RL,RR */
+	{ 0x37, 0x09 },	/* FL,FR,LFE,RL,RR */
+	{ 0x3f, 0x0b },	/* FL,FR,LFE,FC,RL,RR */
+	{ 0x7f, 0x0f },	/* FL,FR,LFE,FC,RL,RR,RC */
+	{ 0xff, 0x13 },	/* FL,FR,LFE,FC,RL,RR,[FR]RC,[FR]LC */
+};
+
+struct snd_dw_hdmi {
+	struct snd_card *card;
+	struct snd_pcm *pcm;
+	spinlock_t lock;
+	struct dw_hdmi_audio_data data;
+	struct snd_pcm_substream *substream;
+	void (*reformat)(struct snd_dw_hdmi *, size_t, size_t);
+	void *buf_src;
+	void *buf_dst;
+	dma_addr_t buf_addr;
+	unsigned buf_offset;
+	unsigned buf_period;
+	unsigned buf_size;
+	unsigned channels;
+	u8 revision;
+	u8 iec_offset;
+	u8 cs[192][8];
+};
+
+static void dw_hdmi_writel(u32 val, void __iomem *ptr)
+{
+	writeb_relaxed(val, ptr);
+	writeb_relaxed(val >> 8, ptr + 1);
+	writeb_relaxed(val >> 16, ptr + 2);
+	writeb_relaxed(val >> 24, ptr + 3);
+}
+
+/*
+ * Convert to hardware format: The userspace buffer contains IEC958 samples,
+ * with the PCUV bits in bits 31..28 and audio samples in bits 27..4.  We
+ * need these to be in bits 27..24, with the IEC B bit in bit 28, and audio
+ * samples in 23..0.
+ *
+ * Default preamble in bits 3..0: 8 = block start, 4 = even 2 = odd
+ *
+ * Ideally, we could do with having the data properly formatted in userspace.
+ */
+static void dw_hdmi_reformat_iec958(struct snd_dw_hdmi *dw,
+	size_t offset, size_t bytes)
+{
+	u32 *src = dw->buf_src + offset;
+	u32 *dst = dw->buf_dst + offset;
+	u32 *end = dw->buf_src + offset + bytes;
+
+	do {
+		u32 b, sample = *src++;
+
+		b = (sample & 8) << (28 - 3);
+
+		sample >>= 4;
+
+		*dst++ = sample | b;
+	} while (src < end);
+}
+
+static u32 parity(u32 sample)
+{
+	sample ^= sample >> 16;
+	sample ^= sample >> 8;
+	sample ^= sample >> 4;
+	sample ^= sample >> 2;
+	sample ^= sample >> 1;
+	return (sample & 1) << 27;
+}
+
+static void dw_hdmi_reformat_s24(struct snd_dw_hdmi *dw,
+	size_t offset, size_t bytes)
+{
+	u32 *src = dw->buf_src + offset;
+	u32 *dst = dw->buf_dst + offset;
+	u32 *end = dw->buf_src + offset + bytes;
+
+	do {
+		unsigned i;
+		u8 *cs;
+
+		cs = dw->cs[dw->iec_offset++];
+		if (dw->iec_offset >= 192)
+			dw->iec_offset = 0;
+
+		i = dw->channels;
+		do {
+			u32 sample = *src++;
+
+			sample &= ~0xff000000;
+			sample |= *cs++ << 24;
+			sample |= parity(sample & ~0xf8000000);
+
+			*dst++ = sample;
+		} while (--i);
+	} while (src < end);
+}
+
+static void dw_hdmi_create_cs(struct snd_dw_hdmi *dw,
+	struct snd_pcm_runtime *runtime)
+{
+	u8 cs[4];
+	unsigned ch, i, j;
+
+	snd_pcm_create_iec958_consumer(runtime, cs, sizeof(cs));
+
+	memset(dw->cs, 0, sizeof(dw->cs));
+
+	for (ch = 0; ch < 8; ch++) {
+		cs[2] &= ~IEC958_AES2_CON_CHANNEL;
+		cs[2] |= (ch + 1) << 4;
+
+		for (i = 0; i < ARRAY_SIZE(cs); i++) {
+			unsigned c = cs[i];
+
+			for (j = 0; j < 8; j++, c >>= 1)
+				dw->cs[i * 8 + j][ch] = (c & 1) << 2;
+		}
+	}
+	dw->cs[0][0] |= BIT(4);
+}
+
+static void dw_hdmi_start_dma(struct snd_dw_hdmi *dw)
+{
+	void __iomem *base = dw->data.base;
+	unsigned offset = dw->buf_offset;
+	unsigned period = dw->buf_period;
+	u32 start, stop;
+
+	dw->reformat(dw, offset, period);
+
+	/* Clear all irqs before enabling irqs and starting DMA */
+	writeb_relaxed(HDMI_IH_AHBDMAAUD_STAT0_ALL,
+		       base + HDMI_IH_AHBDMAAUD_STAT0);
+
+	start = dw->buf_addr + offset;
+	stop = start + period - 1;
+
+	/* Setup the hardware start/stop addresses */
+	dw_hdmi_writel(start, base + HDMI_AHB_DMA_STRADDR0);
+	dw_hdmi_writel(stop, base + HDMI_AHB_DMA_STPADDR0);
+
+	writeb_relaxed((u8)~HDMI_AHB_DMA_MASK_DONE, base + HDMI_AHB_DMA_MASK);
+	writeb(HDMI_AHB_DMA_START_START, base + HDMI_AHB_DMA_START);
+
+	offset += period;
+	if (offset >= dw->buf_size)
+		offset = 0;
+	dw->buf_offset = offset;
+}
+
+static void dw_hdmi_stop_dma(struct snd_dw_hdmi *dw)
+{
+	/* Disable interrupts before disabling DMA */
+	writeb_relaxed(~0, dw->data.base + HDMI_AHB_DMA_MASK);
+	writeb_relaxed(HDMI_AHB_DMA_STOP_STOP, dw->data.base + HDMI_AHB_DMA_STOP);
+}
+
+static irqreturn_t snd_dw_hdmi_irq(int irq, void *data)
+{
+	struct snd_dw_hdmi *dw = data;
+	struct snd_pcm_substream *substream;
+	unsigned stat;
+
+	stat = readb_relaxed(dw->data.base + HDMI_IH_AHBDMAAUD_STAT0);
+	if (!stat)
+		return IRQ_NONE;
+
+	writeb_relaxed(stat, dw->data.base + HDMI_IH_AHBDMAAUD_STAT0);
+
+	substream = dw->substream;
+	if (stat & HDMI_IH_AHBDMAAUD_STAT0_DONE && substream) {
+		snd_pcm_period_elapsed(substream);
+
+		spin_lock(&dw->lock);
+		if (dw->substream)
+			dw_hdmi_start_dma(dw);
+		spin_unlock(&dw->lock);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static const struct snd_pcm_hardware dw_hdmi_hw = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_MMAP |
+		SNDRV_PCM_INFO_MMAP_VALID,
+	.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE |
+		   SNDRV_PCM_FMTBIT_S24_LE,
+	.rates = SNDRV_PCM_RATE_32000 |
+		 SNDRV_PCM_RATE_44100 |
+		 SNDRV_PCM_RATE_48000 |
+		 SNDRV_PCM_RATE_88200 |
+		 SNDRV_PCM_RATE_96000 |
+		 SNDRV_PCM_RATE_176400 |
+		 SNDRV_PCM_RATE_192000,
+	.channels_min = 2,
+	.channels_max = 8,
+	.buffer_bytes_max = 1024 * 1024,
+	.period_bytes_min = 256,
+	.period_bytes_max = 8192,	/* ERR004323: must limit to 8k */
+	.periods_min = 2,
+	.periods_max = 16,
+	.fifo_size = 0,
+};
+
+static int dw_hdmi_open(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_dw_hdmi *dw = substream->private_data;
+	void __iomem *base = dw->data.base;
+	u8 *eld;
+	int ret;
+
+	runtime->hw = dw_hdmi_hw;
+
+	eld = dw->data.get_eld(dw->data.hdmi);
+	if (eld) {
+		ret = snd_pcm_hw_constraint_eld(runtime, eld);
+		if (ret < 0)
+			return ret;
+	}
+
+	ret = snd_pcm_limit_hw_rates(runtime);
+	if (ret < 0)
+		return ret;
+
+	ret = snd_pcm_hw_constraint_integer(runtime,
+					    SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0)
+		return ret;
+
+	/* Limit the buffer size to the size of the preallocated buffer */
+	ret = snd_pcm_hw_constraint_minmax(runtime,
+					   SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+					   0, substream->dma_buffer.bytes);
+	if (ret < 0)
+		return ret;
+
+	/* Clear FIFO */
+	writeb_relaxed(HDMI_AHB_DMA_CONF0_SW_FIFO_RST,
+		       base + HDMI_AHB_DMA_CONF0);
+
+	/* Configure interrupt polarities */
+	writeb_relaxed(~0, base + HDMI_AHB_DMA_POL);
+	writeb_relaxed(~0, base + HDMI_AHB_DMA_BUFFPOL);
+
+	/* Keep interrupts masked, and clear any pending */
+	writeb_relaxed(~0, base + HDMI_AHB_DMA_MASK);
+	writeb_relaxed(~0, base + HDMI_IH_AHBDMAAUD_STAT0);
+
+	ret = request_irq(dw->data.irq, snd_dw_hdmi_irq, IRQF_SHARED,
+			  "dw-hdmi-audio", dw);
+	if (ret)
+		return ret;
+
+	/* Un-mute done interrupt */
+	writeb_relaxed(HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL &
+		       ~HDMI_IH_MUTE_AHBDMAAUD_STAT0_DONE,
+		       base + HDMI_IH_MUTE_AHBDMAAUD_STAT0);
+
+	return 0;
+}
+
+static int dw_hdmi_close(struct snd_pcm_substream *substream)
+{
+	struct snd_dw_hdmi *dw = substream->private_data;
+
+	/* Mute all interrupts */
+	writeb_relaxed(HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL,
+		       dw->data.base + HDMI_IH_MUTE_AHBDMAAUD_STAT0);
+
+	free_irq(dw->data.irq, dw);
+
+	return 0;
+}
+
+static int dw_hdmi_hw_free(struct snd_pcm_substream *substream)
+{
+	return snd_pcm_lib_free_vmalloc_buffer(substream);
+}
+
+static int dw_hdmi_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	/* Allocate the PCM runtime buffer, which is exposed to userspace. */
+	return snd_pcm_lib_alloc_vmalloc_buffer(substream,
+						params_buffer_bytes(params));
+}
+
+static int dw_hdmi_prepare(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_dw_hdmi *dw = substream->private_data;
+	u8 threshold, conf0, conf1, ca;
+
+	/* Setup as per 3.0.5 FSL 4.1.0 BSP */
+	switch (dw->revision) {
+	case 0x0a:
+		conf0 = HDMI_AHB_DMA_CONF0_BURST_MODE |
+			HDMI_AHB_DMA_CONF0_INCR4;
+		if (runtime->channels == 2)
+			threshold = 126;
+		else
+			threshold = 124;
+		break;
+	case 0x1a:
+		conf0 = HDMI_AHB_DMA_CONF0_BURST_MODE |
+			HDMI_AHB_DMA_CONF0_INCR8;
+		threshold = 128;
+		break;
+	default:
+		/* NOTREACHED */
+		return -EINVAL;
+	}
+
+	dw_hdmi_set_sample_rate(dw->data.hdmi, runtime->rate);
+
+	/* Minimum number of bytes in the fifo. */
+	runtime->hw.fifo_size = threshold * 32;
+
+	conf0 |= HDMI_AHB_DMA_CONF0_EN_HLOCK;
+	conf1 = default_hdmi_channel_config[runtime->channels - 2].conf1;
+	ca = default_hdmi_channel_config[runtime->channels - 2].ca;
+
+	writeb_relaxed(threshold, dw->data.base + HDMI_AHB_DMA_THRSLD);
+	writeb_relaxed(conf0, dw->data.base + HDMI_AHB_DMA_CONF0);
+	writeb_relaxed(conf1, dw->data.base + HDMI_AHB_DMA_CONF1);
+
+	dw_hdmi_set_channel_count(dw->data.hdmi, runtime->channels);
+	dw_hdmi_set_channel_allocation(dw->data.hdmi, ca);
+
+	switch (runtime->format) {
+	case SNDRV_PCM_FORMAT_IEC958_SUBFRAME_LE:
+		dw->reformat = dw_hdmi_reformat_iec958;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		dw_hdmi_create_cs(dw, runtime);
+		dw->reformat = dw_hdmi_reformat_s24;
+		break;
+	}
+	dw->iec_offset = 0;
+	dw->channels = runtime->channels;
+	dw->buf_src  = runtime->dma_area;
+	dw->buf_dst  = substream->dma_buffer.area;
+	dw->buf_addr = substream->dma_buffer.addr;
+	dw->buf_period = snd_pcm_lib_period_bytes(substream);
+	dw->buf_size = snd_pcm_lib_buffer_bytes(substream);
+
+	return 0;
+}
+
+static int dw_hdmi_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_dw_hdmi *dw = substream->private_data;
+	unsigned long flags;
+	int ret = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		spin_lock_irqsave(&dw->lock, flags);
+		dw->buf_offset = 0;
+		dw->substream = substream;
+		dw_hdmi_start_dma(dw);
+		dw_hdmi_audio_enable(dw->data.hdmi);
+		spin_unlock_irqrestore(&dw->lock, flags);
+		substream->runtime->delay = substream->runtime->period_size;
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+		spin_lock_irqsave(&dw->lock, flags);
+		dw->substream = NULL;
+		dw_hdmi_stop_dma(dw);
+		dw_hdmi_audio_disable(dw->data.hdmi);
+		spin_unlock_irqrestore(&dw->lock, flags);
+		break;
+
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static snd_pcm_uframes_t dw_hdmi_pointer(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_dw_hdmi *dw = substream->private_data;
+
+	/*
+	 * We are unable to report the exact hardware position as
+	 * reading the 32-bit DMA position using 8-bit reads is racy.
+	 */
+	return bytes_to_frames(runtime, dw->buf_offset);
+}
+
+static const struct snd_pcm_ops snd_dw_hdmi_ops = {
+	.open = dw_hdmi_open,
+	.close = dw_hdmi_close,
+	.ioctl = snd_pcm_lib_ioctl,
+	.hw_params = dw_hdmi_hw_params,
+	.hw_free = dw_hdmi_hw_free,
+	.prepare = dw_hdmi_prepare,
+	.trigger = dw_hdmi_trigger,
+	.pointer = dw_hdmi_pointer,
+	.page = snd_pcm_lib_get_vmalloc_page,
+};
+
+static int snd_dw_hdmi_probe(struct platform_device *pdev)
+{
+	const struct dw_hdmi_audio_data *data = pdev->dev.platform_data;
+	struct device *dev = pdev->dev.parent;
+	struct snd_dw_hdmi *dw;
+	struct snd_card *card;
+	struct snd_pcm *pcm;
+	unsigned revision;
+	int ret;
+
+	writeb_relaxed(HDMI_IH_MUTE_AHBDMAAUD_STAT0_ALL,
+		       data->base + HDMI_IH_MUTE_AHBDMAAUD_STAT0);
+	revision = readb_relaxed(data->base + HDMI_REVISION_ID);
+	if (revision != 0x0a && revision != 0x1a) {
+		dev_err(dev, "dw-hdmi-audio: unknown revision 0x%02x\n",
+			revision);
+		return -ENXIO;
+	}
+
+	ret = snd_card_new(dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
+			      THIS_MODULE, sizeof(struct snd_dw_hdmi), &card);
+	if (ret < 0)
+		return ret;
+
+	strscpy(card->driver, DRIVER_NAME, sizeof(card->driver));
+	strscpy(card->shortname, "DW-HDMI", sizeof(card->shortname));
+	snprintf(card->longname, sizeof(card->longname),
+		 "%s rev 0x%02x, irq %d", card->shortname, revision,
+		 data->irq);
+
+	dw = card->private_data;
+	dw->card = card;
+	dw->data = *data;
+	dw->revision = revision;
+
+	spin_lock_init(&dw->lock);
+
+	ret = snd_pcm_new(card, "DW HDMI", 0, 1, 0, &pcm);
+	if (ret < 0)
+		goto err;
+
+	dw->pcm = pcm;
+	pcm->private_data = dw;
+	strscpy(pcm->name, DRIVER_NAME, sizeof(pcm->name));
+	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_dw_hdmi_ops);
+
+	/*
+	 * To support 8-channel 96kHz audio reliably, we need 512k
+	 * to satisfy alsa with our restricted period (ERR004323).
+	 */
+	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+			dev, 128 * 1024, 1024 * 1024);
+
+	ret = snd_card_register(card);
+	if (ret < 0)
+		goto err;
+
+	platform_set_drvdata(pdev, dw);
+
+	return 0;
+
+err:
+	snd_card_free(card);
+	return ret;
+}
+
+static int snd_dw_hdmi_remove(struct platform_device *pdev)
+{
+	struct snd_dw_hdmi *dw = platform_get_drvdata(pdev);
+
+	snd_card_free(dw->card);
+
+	return 0;
+}
+
+#if defined(CONFIG_PM_SLEEP) && defined(IS_NOT_BROKEN)
+/*
+ * This code is fine, but requires implementation in the dw_hdmi_trigger()
+ * method which is currently missing as I have no way to test this.
+ */
+static int snd_dw_hdmi_suspend(struct device *dev)
+{
+	struct snd_dw_hdmi *dw = dev_get_drvdata(dev);
+
+	snd_power_change_state(dw->card, SNDRV_CTL_POWER_D3cold);
+
+	return 0;
+}
+
+static int snd_dw_hdmi_resume(struct device *dev)
+{
+	struct snd_dw_hdmi *dw = dev_get_drvdata(dev);
+
+	snd_power_change_state(dw->card, SNDRV_CTL_POWER_D0);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(snd_dw_hdmi_pm, snd_dw_hdmi_suspend,
+			 snd_dw_hdmi_resume);
+#define PM_OPS &snd_dw_hdmi_pm
+#else
+#define PM_OPS NULL
+#endif
+
+static struct platform_driver snd_dw_hdmi_driver = {
+	.probe	= snd_dw_hdmi_probe,
+	.remove	= snd_dw_hdmi_remove,
+	.driver	= {
+		.name = DRIVER_NAME,
+		.pm = PM_OPS,
+	},
+};
+
+module_platform_driver(snd_dw_hdmi_driver);
+
+MODULE_AUTHOR("Russell King <rmk+kernel@armlinux.org.uk>");
+MODULE_DESCRIPTION("Synopsis Designware HDMI AHB ALSA interface");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h
new file mode 100644
index 000000000..f72d27208
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-audio.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef DW_HDMI_AUDIO_H
+#define DW_HDMI_AUDIO_H
+
+struct dw_hdmi;
+
+struct dw_hdmi_audio_data {
+	phys_addr_t phys;
+	void __iomem *base;
+	int irq;
+	struct dw_hdmi *hdmi;
+	u8 *(*get_eld)(struct dw_hdmi *hdmi);
+};
+
+struct dw_hdmi_i2s_audio_data {
+	struct dw_hdmi *hdmi;
+
+	void (*write)(struct dw_hdmi *hdmi, u8 val, int offset);
+	u8 (*read)(struct dw_hdmi *hdmi, int offset);
+	u8 *(*get_eld)(struct dw_hdmi *hdmi);
+};
+
+#endif
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
new file mode 100644
index 000000000..c8f44bcb2
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.c
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Designware HDMI CEC driver
+ *
+ * Copyright (C) 2015-2017 Russell King.
+ */
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include <drm/drm_edid.h>
+
+#include <media/cec.h>
+#include <media/cec-notifier.h>
+
+#include "dw-hdmi-cec.h"
+
+enum {
+	HDMI_IH_CEC_STAT0	= 0x0106,
+	HDMI_IH_MUTE_CEC_STAT0	= 0x0186,
+
+	HDMI_CEC_CTRL		= 0x7d00,
+	CEC_CTRL_START		= BIT(0),
+	CEC_CTRL_FRAME_TYP	= 3 << 1,
+	CEC_CTRL_RETRY		= 0 << 1,
+	CEC_CTRL_NORMAL		= 1 << 1,
+	CEC_CTRL_IMMED		= 2 << 1,
+
+	HDMI_CEC_STAT		= 0x7d01,
+	CEC_STAT_DONE		= BIT(0),
+	CEC_STAT_EOM		= BIT(1),
+	CEC_STAT_NACK		= BIT(2),
+	CEC_STAT_ARBLOST	= BIT(3),
+	CEC_STAT_ERROR_INIT	= BIT(4),
+	CEC_STAT_ERROR_FOLL	= BIT(5),
+	CEC_STAT_WAKEUP		= BIT(6),
+
+	HDMI_CEC_MASK		= 0x7d02,
+	HDMI_CEC_POLARITY	= 0x7d03,
+	HDMI_CEC_INT		= 0x7d04,
+	HDMI_CEC_ADDR_L		= 0x7d05,
+	HDMI_CEC_ADDR_H		= 0x7d06,
+	HDMI_CEC_TX_CNT		= 0x7d07,
+	HDMI_CEC_RX_CNT		= 0x7d08,
+	HDMI_CEC_TX_DATA0	= 0x7d10,
+	HDMI_CEC_RX_DATA0	= 0x7d20,
+	HDMI_CEC_LOCK		= 0x7d30,
+	HDMI_CEC_WKUPCTRL	= 0x7d31,
+};
+
+struct dw_hdmi_cec {
+	struct dw_hdmi *hdmi;
+	const struct dw_hdmi_cec_ops *ops;
+	u32 addresses;
+	struct cec_adapter *adap;
+	struct cec_msg rx_msg;
+	unsigned int tx_status;
+	bool tx_done;
+	bool rx_done;
+	struct cec_notifier *notify;
+	int irq;
+};
+
+static void dw_hdmi_write(struct dw_hdmi_cec *cec, u8 val, int offset)
+{
+	cec->ops->write(cec->hdmi, val, offset);
+}
+
+static u8 dw_hdmi_read(struct dw_hdmi_cec *cec, int offset)
+{
+	return cec->ops->read(cec->hdmi, offset);
+}
+
+static int dw_hdmi_cec_log_addr(struct cec_adapter *adap, u8 logical_addr)
+{
+	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);
+
+	if (logical_addr == CEC_LOG_ADDR_INVALID)
+		cec->addresses = 0;
+	else
+		cec->addresses |= BIT(logical_addr) | BIT(15);
+
+	dw_hdmi_write(cec, cec->addresses & 255, HDMI_CEC_ADDR_L);
+	dw_hdmi_write(cec, cec->addresses >> 8, HDMI_CEC_ADDR_H);
+
+	return 0;
+}
+
+static int dw_hdmi_cec_transmit(struct cec_adapter *adap, u8 attempts,
+				u32 signal_free_time, struct cec_msg *msg)
+{
+	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);
+	unsigned int i, ctrl;
+
+	switch (signal_free_time) {
+	case CEC_SIGNAL_FREE_TIME_RETRY:
+		ctrl = CEC_CTRL_RETRY;
+		break;
+	case CEC_SIGNAL_FREE_TIME_NEW_INITIATOR:
+	default:
+		ctrl = CEC_CTRL_NORMAL;
+		break;
+	case CEC_SIGNAL_FREE_TIME_NEXT_XFER:
+		ctrl = CEC_CTRL_IMMED;
+		break;
+	}
+
+	for (i = 0; i < msg->len; i++)
+		dw_hdmi_write(cec, msg->msg[i], HDMI_CEC_TX_DATA0 + i);
+
+	dw_hdmi_write(cec, msg->len, HDMI_CEC_TX_CNT);
+	dw_hdmi_write(cec, ctrl | CEC_CTRL_START, HDMI_CEC_CTRL);
+
+	return 0;
+}
+
+static irqreturn_t dw_hdmi_cec_hardirq(int irq, void *data)
+{
+	struct cec_adapter *adap = data;
+	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);
+	unsigned int stat = dw_hdmi_read(cec, HDMI_IH_CEC_STAT0);
+	irqreturn_t ret = IRQ_HANDLED;
+
+	if (stat == 0)
+		return IRQ_NONE;
+
+	dw_hdmi_write(cec, stat, HDMI_IH_CEC_STAT0);
+
+	if (stat & CEC_STAT_ERROR_INIT) {
+		cec->tx_status = CEC_TX_STATUS_ERROR;
+		cec->tx_done = true;
+		ret = IRQ_WAKE_THREAD;
+	} else if (stat & CEC_STAT_DONE) {
+		cec->tx_status = CEC_TX_STATUS_OK;
+		cec->tx_done = true;
+		ret = IRQ_WAKE_THREAD;
+	} else if (stat & CEC_STAT_NACK) {
+		cec->tx_status = CEC_TX_STATUS_NACK;
+		cec->tx_done = true;
+		ret = IRQ_WAKE_THREAD;
+	}
+
+	if (stat & CEC_STAT_EOM) {
+		unsigned int len, i;
+
+		len = dw_hdmi_read(cec, HDMI_CEC_RX_CNT);
+		if (len > sizeof(cec->rx_msg.msg))
+			len = sizeof(cec->rx_msg.msg);
+
+		for (i = 0; i < len; i++)
+			cec->rx_msg.msg[i] =
+				dw_hdmi_read(cec, HDMI_CEC_RX_DATA0 + i);
+
+		dw_hdmi_write(cec, 0, HDMI_CEC_LOCK);
+
+		cec->rx_msg.len = len;
+		smp_wmb();
+		cec->rx_done = true;
+
+		ret = IRQ_WAKE_THREAD;
+	}
+
+	return ret;
+}
+
+static irqreturn_t dw_hdmi_cec_thread(int irq, void *data)
+{
+	struct cec_adapter *adap = data;
+	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);
+
+	if (cec->tx_done) {
+		cec->tx_done = false;
+		cec_transmit_attempt_done(adap, cec->tx_status);
+	}
+	if (cec->rx_done) {
+		cec->rx_done = false;
+		smp_rmb();
+		cec_received_msg(adap, &cec->rx_msg);
+	}
+	return IRQ_HANDLED;
+}
+
+static int dw_hdmi_cec_enable(struct cec_adapter *adap, bool enable)
+{
+	struct dw_hdmi_cec *cec = cec_get_drvdata(adap);
+
+	if (!enable) {
+		dw_hdmi_write(cec, ~0, HDMI_CEC_MASK);
+		dw_hdmi_write(cec, ~0, HDMI_IH_MUTE_CEC_STAT0);
+		dw_hdmi_write(cec, 0, HDMI_CEC_POLARITY);
+
+		cec->ops->disable(cec->hdmi);
+	} else {
+		unsigned int irqs;
+
+		dw_hdmi_write(cec, 0, HDMI_CEC_CTRL);
+		dw_hdmi_write(cec, ~0, HDMI_IH_CEC_STAT0);
+		dw_hdmi_write(cec, 0, HDMI_CEC_LOCK);
+
+		dw_hdmi_cec_log_addr(cec->adap, CEC_LOG_ADDR_INVALID);
+
+		cec->ops->enable(cec->hdmi);
+
+		irqs = CEC_STAT_ERROR_INIT | CEC_STAT_NACK | CEC_STAT_EOM |
+		       CEC_STAT_DONE;
+		dw_hdmi_write(cec, irqs, HDMI_CEC_POLARITY);
+		dw_hdmi_write(cec, ~irqs, HDMI_CEC_MASK);
+		dw_hdmi_write(cec, ~irqs, HDMI_IH_MUTE_CEC_STAT0);
+	}
+	return 0;
+}
+
+static const struct cec_adap_ops dw_hdmi_cec_ops = {
+	.adap_enable = dw_hdmi_cec_enable,
+	.adap_log_addr = dw_hdmi_cec_log_addr,
+	.adap_transmit = dw_hdmi_cec_transmit,
+};
+
+static void dw_hdmi_cec_del(void *data)
+{
+	struct dw_hdmi_cec *cec = data;
+
+	cec_delete_adapter(cec->adap);
+}
+
+static int dw_hdmi_cec_probe(struct platform_device *pdev)
+{
+	struct dw_hdmi_cec_data *data = dev_get_platdata(&pdev->dev);
+	struct dw_hdmi_cec *cec;
+	int ret;
+
+	if (!data)
+		return -ENXIO;
+
+	/*
+	 * Our device is just a convenience - we want to link to the real
+	 * hardware device here, so that userspace can see the association
+	 * between the HDMI hardware and its associated CEC chardev.
+	 */
+	cec = devm_kzalloc(&pdev->dev, sizeof(*cec), GFP_KERNEL);
+	if (!cec)
+		return -ENOMEM;
+
+	cec->irq = data->irq;
+	cec->ops = data->ops;
+	cec->hdmi = data->hdmi;
+
+	platform_set_drvdata(pdev, cec);
+
+	dw_hdmi_write(cec, 0, HDMI_CEC_TX_CNT);
+	dw_hdmi_write(cec, ~0, HDMI_CEC_MASK);
+	dw_hdmi_write(cec, ~0, HDMI_IH_MUTE_CEC_STAT0);
+	dw_hdmi_write(cec, 0, HDMI_CEC_POLARITY);
+
+	cec->adap = cec_allocate_adapter(&dw_hdmi_cec_ops, cec, "dw_hdmi",
+					 CEC_CAP_DEFAULTS |
+					 CEC_CAP_CONNECTOR_INFO,
+					 CEC_MAX_LOG_ADDRS);
+	if (IS_ERR(cec->adap))
+		return PTR_ERR(cec->adap);
+
+	/* override the module pointer */
+	cec->adap->owner = THIS_MODULE;
+
+	ret = devm_add_action_or_reset(&pdev->dev, dw_hdmi_cec_del, cec);
+	if (ret)
+		return ret;
+
+	ret = devm_request_threaded_irq(&pdev->dev, cec->irq,
+					dw_hdmi_cec_hardirq,
+					dw_hdmi_cec_thread, IRQF_SHARED,
+					"dw-hdmi-cec", cec->adap);
+	if (ret < 0)
+		return ret;
+
+	cec->notify = cec_notifier_cec_adap_register(pdev->dev.parent,
+						     NULL, cec->adap);
+	if (!cec->notify)
+		return -ENOMEM;
+
+	ret = cec_register_adapter(cec->adap, pdev->dev.parent);
+	if (ret < 0) {
+		cec_notifier_cec_adap_unregister(cec->notify, cec->adap);
+		return ret;
+	}
+
+	/*
+	 * CEC documentation says we must not call cec_delete_adapter
+	 * after a successful call to cec_register_adapter().
+	 */
+	devm_remove_action(&pdev->dev, dw_hdmi_cec_del, cec);
+
+	return 0;
+}
+
+static int dw_hdmi_cec_remove(struct platform_device *pdev)
+{
+	struct dw_hdmi_cec *cec = platform_get_drvdata(pdev);
+
+	cec_notifier_cec_adap_unregister(cec->notify, cec->adap);
+	cec_unregister_adapter(cec->adap);
+
+	return 0;
+}
+
+static struct platform_driver dw_hdmi_cec_driver = {
+	.probe	= dw_hdmi_cec_probe,
+	.remove	= dw_hdmi_cec_remove,
+	.driver = {
+		.name = "dw-hdmi-cec",
+	},
+};
+module_platform_driver(dw_hdmi_cec_driver);
+
+MODULE_AUTHOR("Russell King <rmk+kernel@armlinux.org.uk>");
+MODULE_DESCRIPTION("Synopsys Designware HDMI CEC driver for i.MX");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS(PLATFORM_MODULE_PREFIX "dw-hdmi-cec");
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.h
new file mode 100644
index 000000000..cf4dc121a
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-cec.h
@@ -0,0 +1,19 @@
+#ifndef DW_HDMI_CEC_H
+#define DW_HDMI_CEC_H
+
+struct dw_hdmi;
+
+struct dw_hdmi_cec_ops {
+	void (*write)(struct dw_hdmi *hdmi, u8 val, int offset);
+	u8 (*read)(struct dw_hdmi *hdmi, int offset);
+	void (*enable)(struct dw_hdmi *hdmi);
+	void (*disable)(struct dw_hdmi *hdmi);
+};
+
+struct dw_hdmi_cec_data {
+	struct dw_hdmi *hdmi;
+	const struct dw_hdmi_cec_ops *ops;
+	int irq;
+};
+
+#endif
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c
new file mode 100644
index 000000000..557966239
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-gp-audio.c
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * dw-hdmi-gp-audio.c
+ *
+ * Copyright 2020-2022 NXP
+ */
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
+#include <drm/bridge/dw_hdmi.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_connector.h>
+
+#include <sound/hdmi-codec.h>
+#include <sound/asoundef.h>
+#include <sound/core.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_drm_eld.h>
+#include <sound/pcm_iec958.h>
+#include <sound/dmaengine_pcm.h>
+
+#include "dw-hdmi-audio.h"
+
+#define DRIVER_NAME "dw-hdmi-gp-audio"
+#define DRV_NAME    "hdmi-gp-audio"
+
+struct snd_dw_hdmi {
+	struct dw_hdmi_audio_data data;
+	struct platform_device  *audio_pdev;
+	unsigned int pos;
+};
+
+struct dw_hdmi_channel_conf {
+	u8 conf1;
+	u8 ca;
+};
+
+/*
+ * The default mapping of ALSA channels to HDMI channels and speaker
+ * allocation bits.  Note that we can't do channel remapping here -
+ * channels must be in the same order.
+ *
+ * Mappings for alsa-lib pcm/surround*.conf files:
+ *
+ *		Front	Sur4.0	Sur4.1	Sur5.0	Sur5.1	Sur7.1
+ * Channels	2	4	6	6	6	8
+ *
+ * Our mapping from ALSA channel to CEA686D speaker name and HDMI channel:
+ *
+ *				Number of ALSA channels
+ * ALSA Channel	2	3	4	5	6	7	8
+ * 0		FL:0	=	=	=	=	=	=
+ * 1		FR:1	=	=	=	=	=	=
+ * 2			FC:3	RL:4	LFE:2	=	=	=
+ * 3				RR:5	RL:4	FC:3	=	=
+ * 4					RR:5	RL:4	=	=
+ * 5						RR:5	=	=
+ * 6							RC:6	=
+ * 7							RLC/FRC	RLC/FRC
+ */
+static struct dw_hdmi_channel_conf default_hdmi_channel_config[7] = {
+	{ 0x03, 0x00 },	/* FL,FR */
+	{ 0x0b, 0x02 },	/* FL,FR,FC */
+	{ 0x33, 0x08 },	/* FL,FR,RL,RR */
+	{ 0x37, 0x09 },	/* FL,FR,LFE,RL,RR */
+	{ 0x3f, 0x0b },	/* FL,FR,LFE,FC,RL,RR */
+	{ 0x7f, 0x0f },	/* FL,FR,LFE,FC,RL,RR,RC */
+	{ 0xff, 0x13 },	/* FL,FR,LFE,FC,RL,RR,[FR]RC,[FR]LC */
+};
+
+static int audio_hw_params(struct device *dev,  void *data,
+			   struct hdmi_codec_daifmt *daifmt,
+			   struct hdmi_codec_params *params)
+{
+	struct snd_dw_hdmi *dw = dev_get_drvdata(dev);
+	u8 ca;
+
+	dw_hdmi_set_sample_rate(dw->data.hdmi, params->sample_rate);
+
+	ca = default_hdmi_channel_config[params->channels - 2].ca;
+
+	dw_hdmi_set_channel_count(dw->data.hdmi, params->channels);
+	dw_hdmi_set_channel_allocation(dw->data.hdmi, ca);
+
+	dw_hdmi_set_sample_non_pcm(dw->data.hdmi,
+				   params->iec.status[0] & IEC958_AES0_NONAUDIO);
+	dw_hdmi_set_sample_width(dw->data.hdmi, params->sample_width);
+
+	return 0;
+}
+
+static void audio_shutdown(struct device *dev, void *data)
+{
+}
+
+static int audio_mute_stream(struct device *dev, void *data,
+			     bool enable, int direction)
+{
+	struct snd_dw_hdmi *dw = dev_get_drvdata(dev);
+
+	if (!enable)
+		dw_hdmi_audio_enable(dw->data.hdmi);
+	else
+		dw_hdmi_audio_disable(dw->data.hdmi);
+
+	return 0;
+}
+
+static int audio_get_eld(struct device *dev, void *data,
+			 u8 *buf, size_t len)
+{
+	struct dw_hdmi_audio_data *audio = data;
+	u8 *eld;
+
+	eld = audio->get_eld(audio->hdmi);
+	if (eld)
+		memcpy(buf, eld, min_t(size_t, MAX_ELD_BYTES, len));
+	else
+		/* Pass en empty ELD if connector not available */
+		memset(buf, 0, len);
+
+	return 0;
+}
+
+static int audio_hook_plugged_cb(struct device *dev, void *data,
+				 hdmi_codec_plugged_cb fn,
+				 struct device *codec_dev)
+{
+	struct snd_dw_hdmi *dw = dev_get_drvdata(dev);
+
+	return dw_hdmi_set_plugged_cb(dw->data.hdmi, fn, codec_dev);
+}
+
+static const struct hdmi_codec_ops audio_codec_ops = {
+	.hw_params = audio_hw_params,
+	.audio_shutdown = audio_shutdown,
+	.mute_stream = audio_mute_stream,
+	.get_eld = audio_get_eld,
+	.hook_plugged_cb = audio_hook_plugged_cb,
+};
+
+static int snd_dw_hdmi_probe(struct platform_device *pdev)
+{
+	struct dw_hdmi_audio_data *data = pdev->dev.platform_data;
+	struct snd_dw_hdmi *dw;
+
+	const struct hdmi_codec_pdata codec_data = {
+		.i2s = 1,
+		.spdif = 0,
+		.ops = &audio_codec_ops,
+		.max_i2s_channels = 8,
+		.data = data,
+	};
+
+	dw = devm_kzalloc(&pdev->dev, sizeof(*dw), GFP_KERNEL);
+	if (!dw)
+		return -ENOMEM;
+
+	dw->data = *data;
+
+	platform_set_drvdata(pdev, dw);
+
+	dw->audio_pdev = platform_device_register_data(&pdev->dev,
+						       HDMI_CODEC_DRV_NAME, 1,
+						       &codec_data,
+						       sizeof(codec_data));
+
+	return PTR_ERR_OR_ZERO(dw->audio_pdev);
+}
+
+static int snd_dw_hdmi_remove(struct platform_device *pdev)
+{
+	struct snd_dw_hdmi *dw = platform_get_drvdata(pdev);
+
+	platform_device_unregister(dw->audio_pdev);
+
+	return 0;
+}
+
+static struct platform_driver snd_dw_hdmi_driver = {
+	.probe	= snd_dw_hdmi_probe,
+	.remove	= snd_dw_hdmi_remove,
+	.driver	= {
+		.name = DRIVER_NAME,
+	},
+};
+
+module_platform_driver(snd_dw_hdmi_driver);
+
+MODULE_AUTHOR("Shengjiu Wang <shengjiu.wang@nxp.com>");
+MODULE_DESCRIPTION("Synopsys Designware HDMI GPA ALSA interface");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
new file mode 100644
index 000000000..a2f0860b2
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c
@@ -0,0 +1,239 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * dw-hdmi-i2s-audio.c
+ *
+ * Copyright (c) 2017 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/module.h>
+
+#include <drm/bridge/dw_hdmi.h>
+#include <drm/drm_crtc.h>
+
+#include <sound/hdmi-codec.h>
+
+#include "dw-hdmi.h"
+#include "dw-hdmi-audio.h"
+
+#define DRIVER_NAME "dw-hdmi-i2s-audio"
+
+static inline void hdmi_write(struct dw_hdmi_i2s_audio_data *audio,
+			      u8 val, int offset)
+{
+	struct dw_hdmi *hdmi = audio->hdmi;
+
+	audio->write(hdmi, val, offset);
+}
+
+static inline u8 hdmi_read(struct dw_hdmi_i2s_audio_data *audio, int offset)
+{
+	struct dw_hdmi *hdmi = audio->hdmi;
+
+	return audio->read(hdmi, offset);
+}
+
+static int dw_hdmi_i2s_hw_params(struct device *dev, void *data,
+				 struct hdmi_codec_daifmt *fmt,
+				 struct hdmi_codec_params *hparms)
+{
+	struct dw_hdmi_i2s_audio_data *audio = data;
+	struct dw_hdmi *hdmi = audio->hdmi;
+	u8 conf0 = 0;
+	u8 conf1 = 0;
+	u8 inputclkfs = 0;
+
+	/* it cares I2S only */
+	if (fmt->bit_clk_provider | fmt->frame_clk_provider) {
+		dev_err(dev, "unsupported clock settings\n");
+		return -EINVAL;
+	}
+
+	/* Reset the FIFOs before applying new params */
+	hdmi_write(audio, HDMI_AUD_CONF0_SW_RESET, HDMI_AUD_CONF0);
+	hdmi_write(audio, (u8)~HDMI_MC_SWRSTZ_I2SSWRST_REQ, HDMI_MC_SWRSTZ);
+
+	inputclkfs	= HDMI_AUD_INPUTCLKFS_64FS;
+	conf0		= (HDMI_AUD_CONF0_I2S_SELECT | HDMI_AUD_CONF0_I2S_EN0);
+
+	/* Enable the required i2s lanes */
+	switch (hparms->channels) {
+	case 7 ... 8:
+		conf0 |= HDMI_AUD_CONF0_I2S_EN3;
+		fallthrough;
+	case 5 ... 6:
+		conf0 |= HDMI_AUD_CONF0_I2S_EN2;
+		fallthrough;
+	case 3 ... 4:
+		conf0 |= HDMI_AUD_CONF0_I2S_EN1;
+		/* Fall-thru */
+	}
+
+	switch (hparms->sample_width) {
+	case 16:
+		conf1 = HDMI_AUD_CONF1_WIDTH_16;
+		break;
+	case 24:
+	case 32:
+		conf1 = HDMI_AUD_CONF1_WIDTH_24;
+		break;
+	}
+
+	switch (fmt->fmt) {
+	case HDMI_I2S:
+		conf1 |= HDMI_AUD_CONF1_MODE_I2S;
+		break;
+	case HDMI_RIGHT_J:
+		conf1 |= HDMI_AUD_CONF1_MODE_RIGHT_J;
+		break;
+	case HDMI_LEFT_J:
+		conf1 |= HDMI_AUD_CONF1_MODE_LEFT_J;
+		break;
+	case HDMI_DSP_A:
+		conf1 |= HDMI_AUD_CONF1_MODE_BURST_1;
+		break;
+	case HDMI_DSP_B:
+		conf1 |= HDMI_AUD_CONF1_MODE_BURST_2;
+		break;
+	default:
+		dev_err(dev, "unsupported format\n");
+		return -EINVAL;
+	}
+
+	dw_hdmi_set_sample_rate(hdmi, hparms->sample_rate);
+	dw_hdmi_set_channel_status(hdmi, hparms->iec.status);
+	dw_hdmi_set_channel_count(hdmi, hparms->channels);
+	dw_hdmi_set_channel_allocation(hdmi, hparms->cea.channel_allocation);
+
+	hdmi_write(audio, inputclkfs, HDMI_AUD_INPUTCLKFS);
+	hdmi_write(audio, conf0, HDMI_AUD_CONF0);
+	hdmi_write(audio, conf1, HDMI_AUD_CONF1);
+
+	return 0;
+}
+
+static int dw_hdmi_i2s_audio_startup(struct device *dev, void *data)
+{
+	struct dw_hdmi_i2s_audio_data *audio = data;
+	struct dw_hdmi *hdmi = audio->hdmi;
+
+	dw_hdmi_audio_enable(hdmi);
+
+	return 0;
+}
+
+static void dw_hdmi_i2s_audio_shutdown(struct device *dev, void *data)
+{
+	struct dw_hdmi_i2s_audio_data *audio = data;
+	struct dw_hdmi *hdmi = audio->hdmi;
+
+	dw_hdmi_audio_disable(hdmi);
+}
+
+static int dw_hdmi_i2s_get_eld(struct device *dev, void *data, uint8_t *buf,
+			       size_t len)
+{
+	struct dw_hdmi_i2s_audio_data *audio = data;
+	u8 *eld;
+
+	eld = audio->get_eld(audio->hdmi);
+	if (eld)
+		memcpy(buf, eld, min_t(size_t, MAX_ELD_BYTES, len));
+	else
+		/* Pass en empty ELD if connector not available */
+		memset(buf, 0, len);
+
+	return 0;
+}
+
+static int dw_hdmi_i2s_get_dai_id(struct snd_soc_component *component,
+				  struct device_node *endpoint)
+{
+	struct of_endpoint of_ep;
+	int ret;
+
+	ret = of_graph_parse_endpoint(endpoint, &of_ep);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * HDMI sound should be located as reg = <2>
+	 * Then, it is sound port 0
+	 */
+	if (of_ep.port == 2)
+		return 0;
+
+	return -EINVAL;
+}
+
+static int dw_hdmi_i2s_hook_plugged_cb(struct device *dev, void *data,
+				       hdmi_codec_plugged_cb fn,
+				       struct device *codec_dev)
+{
+	struct dw_hdmi_i2s_audio_data *audio = data;
+	struct dw_hdmi *hdmi = audio->hdmi;
+
+	return dw_hdmi_set_plugged_cb(hdmi, fn, codec_dev);
+}
+
+static const struct hdmi_codec_ops dw_hdmi_i2s_ops = {
+	.hw_params	= dw_hdmi_i2s_hw_params,
+	.audio_startup  = dw_hdmi_i2s_audio_startup,
+	.audio_shutdown	= dw_hdmi_i2s_audio_shutdown,
+	.get_eld	= dw_hdmi_i2s_get_eld,
+	.get_dai_id	= dw_hdmi_i2s_get_dai_id,
+	.hook_plugged_cb = dw_hdmi_i2s_hook_plugged_cb,
+};
+
+static int snd_dw_hdmi_probe(struct platform_device *pdev)
+{
+	struct dw_hdmi_i2s_audio_data *audio = pdev->dev.platform_data;
+	struct platform_device_info pdevinfo;
+	struct hdmi_codec_pdata pdata;
+	struct platform_device *platform;
+
+	pdata.ops		= &dw_hdmi_i2s_ops;
+	pdata.i2s		= 1;
+	pdata.max_i2s_channels	= 8;
+	pdata.data		= audio;
+
+	memset(&pdevinfo, 0, sizeof(pdevinfo));
+	pdevinfo.parent		= pdev->dev.parent;
+	pdevinfo.id		= PLATFORM_DEVID_AUTO;
+	pdevinfo.name		= HDMI_CODEC_DRV_NAME;
+	pdevinfo.data		= &pdata;
+	pdevinfo.size_data	= sizeof(pdata);
+	pdevinfo.dma_mask	= DMA_BIT_MASK(32);
+
+	platform = platform_device_register_full(&pdevinfo);
+	if (IS_ERR(platform))
+		return PTR_ERR(platform);
+
+	dev_set_drvdata(&pdev->dev, platform);
+
+	return 0;
+}
+
+static int snd_dw_hdmi_remove(struct platform_device *pdev)
+{
+	struct platform_device *platform = dev_get_drvdata(&pdev->dev);
+
+	platform_device_unregister(platform);
+
+	return 0;
+}
+
+static struct platform_driver snd_dw_hdmi_driver = {
+	.probe	= snd_dw_hdmi_probe,
+	.remove	= snd_dw_hdmi_remove,
+	.driver	= {
+		.name = DRIVER_NAME,
+	},
+};
+module_platform_driver(snd_dw_hdmi_driver);
+
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
+MODULE_DESCRIPTION("Synopsis Designware HDMI I2S ALSA SoC interface");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
new file mode 100644
index 000000000..aa51c61a7
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -0,0 +1,3712 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * DesignWare High-Definition Multimedia Interface (HDMI) driver
+ *
+ * Copyright (C) 2013-2015 Mentor Graphics Inc.
+ * Copyright (C) 2011-2013 Freescale Semiconductor, Inc.
+ * Copyright (C) 2010, Guennadi Liakhovetski <g.liakhovetski@gmx.de>
+ */
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/hdmi.h>
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/regmap.h>
+#include <linux/dma-mapping.h>
+#include <linux/spinlock.h>
+
+#include <media/cec-notifier.h>
+
+#include <uapi/linux/media-bus-format.h>
+#include <uapi/linux/videodev2.h>
+
+#include <drm/bridge/dw_hdmi.h>
+#include <drm/display/drm_hdmi_helper.h>
+#include <drm/display/drm_scdc_helper.h>
+#include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_of.h>
+#include <drm/drm_print.h>
+#include <drm/drm_probe_helper.h>
+
+#include "dw-hdmi-audio.h"
+#include "dw-hdmi-cec.h"
+#include "dw-hdmi.h"
+
+#define DDC_CI_ADDR		0x37
+#define DDC_SEGMENT_ADDR	0x30
+
+#define HDMI_EDID_LEN		512
+
+/* DW-HDMI Controller >= 0x200a are at least compliant with SCDC version 1 */
+#define SCDC_MIN_SOURCE_VERSION	0x1
+
+#define HDMI14_MAX_TMDSCLK	340000000
+
+enum hdmi_datamap {
+	RGB444_8B = 0x01,
+	RGB444_10B = 0x03,
+	RGB444_12B = 0x05,
+	RGB444_16B = 0x07,
+	YCbCr444_8B = 0x09,
+	YCbCr444_10B = 0x0B,
+	YCbCr444_12B = 0x0D,
+	YCbCr444_16B = 0x0F,
+	YCbCr422_8B = 0x16,
+	YCbCr422_10B = 0x14,
+	YCbCr422_12B = 0x12,
+};
+
+static const u16 csc_coeff_default[3][4] = {
+	{ 0x2000, 0x0000, 0x0000, 0x0000 },
+	{ 0x0000, 0x2000, 0x0000, 0x0000 },
+	{ 0x0000, 0x0000, 0x2000, 0x0000 }
+};
+
+static const u16 csc_coeff_rgb_out_eitu601[3][4] = {
+	{ 0x2000, 0x6926, 0x74fd, 0x010e },
+	{ 0x2000, 0x2cdd, 0x0000, 0x7e9a },
+	{ 0x2000, 0x0000, 0x38b4, 0x7e3b }
+};
+
+static const u16 csc_coeff_rgb_out_eitu709[3][4] = {
+	{ 0x2000, 0x7106, 0x7a02, 0x00a7 },
+	{ 0x2000, 0x3264, 0x0000, 0x7e6d },
+	{ 0x2000, 0x0000, 0x3b61, 0x7e25 }
+};
+
+static const u16 csc_coeff_rgb_in_eitu601[3][4] = {
+	{ 0x2591, 0x1322, 0x074b, 0x0000 },
+	{ 0x6535, 0x2000, 0x7acc, 0x0200 },
+	{ 0x6acd, 0x7534, 0x2000, 0x0200 }
+};
+
+static const u16 csc_coeff_rgb_in_eitu709[3][4] = {
+	{ 0x2dc5, 0x0d9b, 0x049e, 0x0000 },
+	{ 0x62f0, 0x2000, 0x7d11, 0x0200 },
+	{ 0x6756, 0x78ab, 0x2000, 0x0200 }
+};
+
+static const u16 csc_coeff_rgb_full_to_rgb_limited[3][4] = {
+	{ 0x1b7c, 0x0000, 0x0000, 0x0020 },
+	{ 0x0000, 0x1b7c, 0x0000, 0x0020 },
+	{ 0x0000, 0x0000, 0x1b7c, 0x0020 }
+};
+
+struct hdmi_vmode {
+	bool mdataenablepolarity;
+
+	unsigned int mpixelclock;
+	unsigned int mpixelrepetitioninput;
+	unsigned int mpixelrepetitionoutput;
+	unsigned int mtmdsclock;
+};
+
+struct hdmi_data_info {
+	unsigned int enc_in_bus_format;
+	unsigned int enc_out_bus_format;
+	unsigned int enc_in_encoding;
+	unsigned int enc_out_encoding;
+	unsigned int pix_repet_factor;
+	unsigned int hdcp_enable;
+	struct hdmi_vmode video_mode;
+	bool rgb_limited_range;
+};
+
+struct dw_hdmi_i2c {
+	struct i2c_adapter	adap;
+
+	struct mutex		lock;	/* used to serialize data transfers */
+	struct completion	cmp;
+	u8			stat;
+
+	u8			slave_reg;
+	bool			is_regaddr;
+	bool			is_segment;
+};
+
+struct dw_hdmi_phy_data {
+	enum dw_hdmi_phy_type type;
+	const char *name;
+	unsigned int gen;
+	bool has_svsret;
+	int (*configure)(struct dw_hdmi *hdmi,
+			 const struct dw_hdmi_plat_data *pdata,
+			 unsigned long mpixelclock);
+};
+
+struct dw_hdmi {
+	struct drm_connector connector;
+	struct drm_bridge bridge;
+	struct drm_bridge *next_bridge;
+
+	unsigned int version;
+
+	struct platform_device *audio;
+	struct platform_device *cec;
+	struct device *dev;
+	struct clk *isfr_clk;
+	struct clk *iahb_clk;
+	struct clk *cec_clk;
+	struct dw_hdmi_i2c *i2c;
+
+	struct hdmi_data_info hdmi_data;
+	const struct dw_hdmi_plat_data *plat_data;
+
+	int vic;
+
+	u8 edid[HDMI_EDID_LEN];
+
+	struct {
+		const struct dw_hdmi_phy_ops *ops;
+		const char *name;
+		void *data;
+		bool enabled;
+	} phy;
+
+	struct drm_display_mode previous_mode;
+
+	struct i2c_adapter *ddc;
+	void __iomem *regs;
+	bool sink_is_hdmi;
+	bool sink_has_audio;
+
+	struct pinctrl *pinctrl;
+	struct pinctrl_state *default_state;
+	struct pinctrl_state *unwedge_state;
+
+	struct mutex mutex;		/* for state below and previous_mode */
+	enum drm_connector_force force;	/* mutex-protected force state */
+	struct drm_connector *curr_conn;/* current connector (only valid when !disabled) */
+	bool disabled;			/* DRM has disabled our bridge */
+	bool bridge_is_on;		/* indicates the bridge is on */
+	bool rxsense;			/* rxsense state */
+	u8 phy_mask;			/* desired phy int mask settings */
+	u8 mc_clkdis;			/* clock disable register */
+
+	spinlock_t audio_lock;
+	struct mutex audio_mutex;
+	unsigned int sample_non_pcm;
+	unsigned int sample_width;
+	unsigned int sample_rate;
+	unsigned int channels;
+	unsigned int audio_cts;
+	unsigned int audio_n;
+	bool audio_enable;
+
+	unsigned int reg_shift;
+	struct regmap *regm;
+	void (*enable_audio)(struct dw_hdmi *hdmi);
+	void (*disable_audio)(struct dw_hdmi *hdmi);
+
+	struct mutex cec_notifier_mutex;
+	struct cec_notifier *cec_notifier;
+
+	hdmi_codec_plugged_cb plugged_cb;
+	struct device *codec_dev;
+	enum drm_connector_status last_connector_result;
+};
+
+#define HDMI_IH_PHY_STAT0_RX_SENSE \
+	(HDMI_IH_PHY_STAT0_RX_SENSE0 | HDMI_IH_PHY_STAT0_RX_SENSE1 | \
+	 HDMI_IH_PHY_STAT0_RX_SENSE2 | HDMI_IH_PHY_STAT0_RX_SENSE3)
+
+#define HDMI_PHY_RX_SENSE \
+	(HDMI_PHY_RX_SENSE0 | HDMI_PHY_RX_SENSE1 | \
+	 HDMI_PHY_RX_SENSE2 | HDMI_PHY_RX_SENSE3)
+
+static inline void hdmi_writeb(struct dw_hdmi *hdmi, u8 val, int offset)
+{
+	regmap_write(hdmi->regm, offset << hdmi->reg_shift, val);
+}
+
+static inline u8 hdmi_readb(struct dw_hdmi *hdmi, int offset)
+{
+	unsigned int val = 0;
+
+	regmap_read(hdmi->regm, offset << hdmi->reg_shift, &val);
+
+	return val;
+}
+
+static void handle_plugged_change(struct dw_hdmi *hdmi, bool plugged)
+{
+	if (hdmi->plugged_cb && hdmi->codec_dev)
+		hdmi->plugged_cb(hdmi->codec_dev, plugged);
+}
+
+int dw_hdmi_set_plugged_cb(struct dw_hdmi *hdmi, hdmi_codec_plugged_cb fn,
+			   struct device *codec_dev)
+{
+	bool plugged;
+
+	mutex_lock(&hdmi->mutex);
+	hdmi->plugged_cb = fn;
+	hdmi->codec_dev = codec_dev;
+	plugged = hdmi->last_connector_result == connector_status_connected;
+	handle_plugged_change(hdmi, plugged);
+	mutex_unlock(&hdmi->mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_set_plugged_cb);
+
+static void hdmi_modb(struct dw_hdmi *hdmi, u8 data, u8 mask, unsigned reg)
+{
+	regmap_update_bits(hdmi->regm, reg << hdmi->reg_shift, mask, data);
+}
+
+static void hdmi_mask_writeb(struct dw_hdmi *hdmi, u8 data, unsigned int reg,
+			     u8 shift, u8 mask)
+{
+	hdmi_modb(hdmi, data << shift, mask, reg);
+}
+
+static void dw_hdmi_i2c_init(struct dw_hdmi *hdmi)
+{
+	hdmi_writeb(hdmi, HDMI_PHY_I2CM_INT_ADDR_DONE_POL,
+		    HDMI_PHY_I2CM_INT_ADDR);
+
+	hdmi_writeb(hdmi, HDMI_PHY_I2CM_CTLINT_ADDR_NAC_POL |
+		    HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL,
+		    HDMI_PHY_I2CM_CTLINT_ADDR);
+
+	/* Software reset */
+	hdmi_writeb(hdmi, 0x00, HDMI_I2CM_SOFTRSTZ);
+
+	/* Set Standard Mode speed (determined to be 100KHz on iMX6) */
+	hdmi_writeb(hdmi, 0x00, HDMI_I2CM_DIV);
+
+	/* Set done, not acknowledged and arbitration interrupt polarities */
+	hdmi_writeb(hdmi, HDMI_I2CM_INT_DONE_POL, HDMI_I2CM_INT);
+	hdmi_writeb(hdmi, HDMI_I2CM_CTLINT_NAC_POL | HDMI_I2CM_CTLINT_ARB_POL,
+		    HDMI_I2CM_CTLINT);
+
+	/* Clear DONE and ERROR interrupts */
+	hdmi_writeb(hdmi, HDMI_IH_I2CM_STAT0_ERROR | HDMI_IH_I2CM_STAT0_DONE,
+		    HDMI_IH_I2CM_STAT0);
+
+	/* Mute DONE and ERROR interrupts */
+	hdmi_writeb(hdmi, HDMI_IH_I2CM_STAT0_ERROR | HDMI_IH_I2CM_STAT0_DONE,
+		    HDMI_IH_MUTE_I2CM_STAT0);
+}
+
+static bool dw_hdmi_i2c_unwedge(struct dw_hdmi *hdmi)
+{
+	/* If no unwedge state then give up */
+	if (!hdmi->unwedge_state)
+		return false;
+
+	dev_info(hdmi->dev, "Attempting to unwedge stuck i2c bus\n");
+
+	/*
+	 * This is a huge hack to workaround a problem where the dw_hdmi i2c
+	 * bus could sometimes get wedged.  Once wedged there doesn't appear
+	 * to be any way to unwedge it (including the HDMI_I2CM_SOFTRSTZ)
+	 * other than pulsing the SDA line.
+	 *
+	 * We appear to be able to pulse the SDA line (in the eyes of dw_hdmi)
+	 * by:
+	 * 1. Remux the pin as a GPIO output, driven low.
+	 * 2. Wait a little while.  1 ms seems to work, but we'll do 10.
+	 * 3. Immediately jump to remux the pin as dw_hdmi i2c again.
+	 *
+	 * At the moment of remuxing, the line will still be low due to its
+	 * recent stint as an output, but then it will be pulled high by the
+	 * (presumed) external pullup.  dw_hdmi seems to see this as a rising
+	 * edge and that seems to get it out of its jam.
+	 *
+	 * This wedging was only ever seen on one TV, and only on one of
+	 * its HDMI ports.  It happened when the TV was powered on while the
+	 * device was plugged in.  A scope trace shows the TV bringing both SDA
+	 * and SCL low, then bringing them both back up at roughly the same
+	 * time.  Presumably this confuses dw_hdmi because it saw activity but
+	 * no real STOP (maybe it thinks there's another master on the bus?).
+	 * Giving it a clean rising edge of SDA while SCL is already high
+	 * presumably makes dw_hdmi see a STOP which seems to bring dw_hdmi out
+	 * of its stupor.
+	 *
+	 * Note that after coming back alive, transfers seem to immediately
+	 * resume, so if we unwedge due to a timeout we should wait a little
+	 * longer for our transfer to finish, since it might have just started
+	 * now.
+	 */
+	pinctrl_select_state(hdmi->pinctrl, hdmi->unwedge_state);
+	msleep(10);
+	pinctrl_select_state(hdmi->pinctrl, hdmi->default_state);
+
+	return true;
+}
+
+static int dw_hdmi_i2c_wait(struct dw_hdmi *hdmi)
+{
+	struct dw_hdmi_i2c *i2c = hdmi->i2c;
+	int stat;
+
+	stat = wait_for_completion_timeout(&i2c->cmp, HZ / 10);
+	if (!stat) {
+		/* If we can't unwedge, return timeout */
+		if (!dw_hdmi_i2c_unwedge(hdmi))
+			return -EAGAIN;
+
+		/* We tried to unwedge; give it another chance */
+		stat = wait_for_completion_timeout(&i2c->cmp, HZ / 10);
+		if (!stat)
+			return -EAGAIN;
+	}
+
+	/* Check for error condition on the bus */
+	if (i2c->stat & HDMI_IH_I2CM_STAT0_ERROR)
+		return -EIO;
+
+	return 0;
+}
+
+static int dw_hdmi_i2c_read(struct dw_hdmi *hdmi,
+			    unsigned char *buf, unsigned int length)
+{
+	struct dw_hdmi_i2c *i2c = hdmi->i2c;
+	int ret;
+
+	if (!i2c->is_regaddr) {
+		dev_dbg(hdmi->dev, "set read register address to 0\n");
+		i2c->slave_reg = 0x00;
+		i2c->is_regaddr = true;
+	}
+
+	while (length--) {
+		reinit_completion(&i2c->cmp);
+
+		hdmi_writeb(hdmi, i2c->slave_reg++, HDMI_I2CM_ADDRESS);
+		if (i2c->is_segment)
+			hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ_EXT,
+				    HDMI_I2CM_OPERATION);
+		else
+			hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_READ,
+				    HDMI_I2CM_OPERATION);
+
+		ret = dw_hdmi_i2c_wait(hdmi);
+		if (ret)
+			return ret;
+
+		*buf++ = hdmi_readb(hdmi, HDMI_I2CM_DATAI);
+	}
+	i2c->is_segment = false;
+
+	return 0;
+}
+
+static int dw_hdmi_i2c_write(struct dw_hdmi *hdmi,
+			     unsigned char *buf, unsigned int length)
+{
+	struct dw_hdmi_i2c *i2c = hdmi->i2c;
+	int ret;
+
+	if (!i2c->is_regaddr) {
+		/* Use the first write byte as register address */
+		i2c->slave_reg = buf[0];
+		length--;
+		buf++;
+		i2c->is_regaddr = true;
+	}
+
+	while (length--) {
+		reinit_completion(&i2c->cmp);
+
+		hdmi_writeb(hdmi, *buf++, HDMI_I2CM_DATAO);
+		hdmi_writeb(hdmi, i2c->slave_reg++, HDMI_I2CM_ADDRESS);
+		hdmi_writeb(hdmi, HDMI_I2CM_OPERATION_WRITE,
+			    HDMI_I2CM_OPERATION);
+
+		ret = dw_hdmi_i2c_wait(hdmi);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int dw_hdmi_i2c_xfer(struct i2c_adapter *adap,
+			    struct i2c_msg *msgs, int num)
+{
+	struct dw_hdmi *hdmi = i2c_get_adapdata(adap);
+	struct dw_hdmi_i2c *i2c = hdmi->i2c;
+	u8 addr = msgs[0].addr;
+	int i, ret = 0;
+
+	if (addr == DDC_CI_ADDR)
+		/*
+		 * The internal I2C controller does not support the multi-byte
+		 * read and write operations needed for DDC/CI.
+		 * TOFIX: Blacklist the DDC/CI address until we filter out
+		 * unsupported I2C operations.
+		 */
+		return -EOPNOTSUPP;
+
+	dev_dbg(hdmi->dev, "xfer: num: %d, addr: %#x\n", num, addr);
+
+	for (i = 0; i < num; i++) {
+		if (msgs[i].len == 0) {
+			dev_dbg(hdmi->dev,
+				"unsupported transfer %d/%d, no data\n",
+				i + 1, num);
+			return -EOPNOTSUPP;
+		}
+	}
+
+	mutex_lock(&i2c->lock);
+
+	/* Unmute DONE and ERROR interrupts */
+	hdmi_writeb(hdmi, 0x00, HDMI_IH_MUTE_I2CM_STAT0);
+
+	/* Set slave device address taken from the first I2C message */
+	hdmi_writeb(hdmi, addr, HDMI_I2CM_SLAVE);
+
+	/* Set slave device register address on transfer */
+	i2c->is_regaddr = false;
+
+	/* Set segment pointer for I2C extended read mode operation */
+	i2c->is_segment = false;
+
+	for (i = 0; i < num; i++) {
+		dev_dbg(hdmi->dev, "xfer: num: %d/%d, len: %d, flags: %#x\n",
+			i + 1, num, msgs[i].len, msgs[i].flags);
+		if (msgs[i].addr == DDC_SEGMENT_ADDR && msgs[i].len == 1) {
+			i2c->is_segment = true;
+			hdmi_writeb(hdmi, DDC_SEGMENT_ADDR, HDMI_I2CM_SEGADDR);
+			hdmi_writeb(hdmi, *msgs[i].buf, HDMI_I2CM_SEGPTR);
+		} else {
+			if (msgs[i].flags & I2C_M_RD)
+				ret = dw_hdmi_i2c_read(hdmi, msgs[i].buf,
+						       msgs[i].len);
+			else
+				ret = dw_hdmi_i2c_write(hdmi, msgs[i].buf,
+							msgs[i].len);
+		}
+		if (ret < 0)
+			break;
+	}
+
+	if (!ret)
+		ret = num;
+
+	/* Mute DONE and ERROR interrupts */
+	hdmi_writeb(hdmi, HDMI_IH_I2CM_STAT0_ERROR | HDMI_IH_I2CM_STAT0_DONE,
+		    HDMI_IH_MUTE_I2CM_STAT0);
+
+	mutex_unlock(&i2c->lock);
+
+	return ret;
+}
+
+static u32 dw_hdmi_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm dw_hdmi_algorithm = {
+	.master_xfer	= dw_hdmi_i2c_xfer,
+	.functionality	= dw_hdmi_i2c_func,
+};
+
+static struct i2c_adapter *dw_hdmi_i2c_adapter(struct dw_hdmi *hdmi)
+{
+	struct i2c_adapter *adap;
+	struct dw_hdmi_i2c *i2c;
+	int ret;
+
+	i2c = devm_kzalloc(hdmi->dev, sizeof(*i2c), GFP_KERNEL);
+	if (!i2c)
+		return ERR_PTR(-ENOMEM);
+
+	mutex_init(&i2c->lock);
+	init_completion(&i2c->cmp);
+
+	adap = &i2c->adap;
+	adap->class = I2C_CLASS_DDC;
+	adap->owner = THIS_MODULE;
+	adap->dev.parent = hdmi->dev;
+	adap->algo = &dw_hdmi_algorithm;
+	strlcpy(adap->name, "DesignWare HDMI", sizeof(adap->name));
+	i2c_set_adapdata(adap, hdmi);
+
+	ret = i2c_add_adapter(adap);
+	if (ret) {
+		dev_warn(hdmi->dev, "cannot add %s I2C adapter\n", adap->name);
+		devm_kfree(hdmi->dev, i2c);
+		return ERR_PTR(ret);
+	}
+
+	hdmi->i2c = i2c;
+
+	dev_info(hdmi->dev, "registered %s I2C bus driver\n", adap->name);
+
+	return adap;
+}
+
+static void hdmi_set_cts_n(struct dw_hdmi *hdmi, unsigned int cts,
+			   unsigned int n)
+{
+	/* Must be set/cleared first */
+	hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_CTS_MANUAL, HDMI_AUD_CTS3);
+
+	/* nshift factor = 0 */
+	hdmi_modb(hdmi, 0, HDMI_AUD_CTS3_N_SHIFT_MASK, HDMI_AUD_CTS3);
+
+	/* Use automatic CTS generation mode when CTS is not set */
+	if (cts)
+		hdmi_writeb(hdmi, ((cts >> 16) &
+				   HDMI_AUD_CTS3_AUDCTS19_16_MASK) |
+				  HDMI_AUD_CTS3_CTS_MANUAL,
+			    HDMI_AUD_CTS3);
+	else
+		hdmi_writeb(hdmi, 0, HDMI_AUD_CTS3);
+	hdmi_writeb(hdmi, (cts >> 8) & 0xff, HDMI_AUD_CTS2);
+	hdmi_writeb(hdmi, cts & 0xff, HDMI_AUD_CTS1);
+
+	hdmi_writeb(hdmi, (n >> 16) & 0x0f, HDMI_AUD_N3);
+	hdmi_writeb(hdmi, (n >> 8) & 0xff, HDMI_AUD_N2);
+	hdmi_writeb(hdmi, n & 0xff, HDMI_AUD_N1);
+}
+
+static unsigned int hdmi_compute_n(unsigned int freq, unsigned long pixel_clk)
+{
+	unsigned int n = (128 * freq) / 1000;
+	unsigned int mult = 1;
+
+	while (freq > 48000) {
+		mult *= 2;
+		freq /= 2;
+	}
+
+	switch (freq) {
+	case 32000:
+		if (pixel_clk == 25175000)
+			n = 4576;
+		else if (pixel_clk == 27027000)
+			n = 4096;
+		else if (pixel_clk == 74176000 || pixel_clk == 148352000)
+			n = 11648;
+		else if (pixel_clk == 297000000)
+			n = 3072;
+		else
+			n = 4096;
+		n *= mult;
+		break;
+
+	case 44100:
+		if (pixel_clk == 25175000)
+			n = 7007;
+		else if (pixel_clk == 74176000)
+			n = 17836;
+		else if (pixel_clk == 148352000)
+			n = 8918;
+		else if (pixel_clk == 297000000)
+			n = 4704;
+		else
+			n = 6272;
+		n *= mult;
+		break;
+
+	case 48000:
+		if (pixel_clk == 25175000)
+			n = 6864;
+		else if (pixel_clk == 27027000)
+			n = 6144;
+		else if (pixel_clk == 74176000)
+			n = 11648;
+		else if (pixel_clk == 148352000)
+			n = 5824;
+		else if (pixel_clk == 297000000)
+			n = 5120;
+		else
+			n = 6144;
+		n *= mult;
+		break;
+
+	default:
+		break;
+	}
+
+	return n;
+}
+
+/*
+ * When transmitting IEC60958 linear PCM audio, these registers allow to
+ * configure the channel status information of all the channel status
+ * bits in the IEC60958 frame. For the moment this configuration is only
+ * used when the I2S audio interface, General Purpose Audio (GPA),
+ * or AHB audio DMA (AHBAUDDMA) interface is active
+ * (for S/PDIF interface this information comes from the stream).
+ */
+void dw_hdmi_set_channel_status(struct dw_hdmi *hdmi,
+				u8 *channel_status)
+{
+	/*
+	 * Set channel status register for frequency and word length.
+	 * Use default values for other registers.
+	 */
+	hdmi_writeb(hdmi, channel_status[3], HDMI_FC_AUDSCHNLS7);
+	hdmi_writeb(hdmi, channel_status[4], HDMI_FC_AUDSCHNLS8);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_set_channel_status);
+
+static void hdmi_set_clk_regenerator(struct dw_hdmi *hdmi,
+	unsigned long pixel_clk, unsigned int sample_rate)
+{
+	unsigned long ftdms = pixel_clk;
+	unsigned int n, cts;
+	u8 config3;
+	u64 tmp;
+
+	n = hdmi_compute_n(sample_rate, pixel_clk);
+
+	config3 = hdmi_readb(hdmi, HDMI_CONFIG3_ID);
+
+	/* Compute CTS when using internal AHB audio or General Parallel audio*/
+	if ((config3 & HDMI_CONFIG3_AHBAUDDMA) || (config3 & HDMI_CONFIG3_GPAUD)) {
+		/*
+		 * Compute the CTS value from the N value.  Note that CTS and N
+		 * can be up to 20 bits in total, so we need 64-bit math.  Also
+		 * note that our TDMS clock is not fully accurate; it is
+		 * accurate to kHz.  This can introduce an unnecessary remainder
+		 * in the calculation below, so we don't try to warn about that.
+		 */
+		tmp = (u64)ftdms * n;
+		do_div(tmp, 128 * sample_rate);
+		cts = tmp;
+
+		dev_dbg(hdmi->dev, "%s: fs=%uHz ftdms=%lu.%03luMHz N=%d cts=%d\n",
+			__func__, sample_rate,
+			ftdms / 1000000, (ftdms / 1000) % 1000,
+			n, cts);
+	} else {
+		cts = 0;
+	}
+
+	spin_lock_irq(&hdmi->audio_lock);
+	hdmi->audio_n = n;
+	hdmi->audio_cts = cts;
+	hdmi_set_cts_n(hdmi, cts, hdmi->audio_enable ? n : 0);
+	spin_unlock_irq(&hdmi->audio_lock);
+}
+
+static void hdmi_init_clk_regenerator(struct dw_hdmi *hdmi)
+{
+	mutex_lock(&hdmi->audio_mutex);
+	hdmi_set_clk_regenerator(hdmi, 74250000, hdmi->sample_rate);
+	mutex_unlock(&hdmi->audio_mutex);
+}
+
+static void hdmi_clk_regenerator_update_pixel_clock(struct dw_hdmi *hdmi)
+{
+	mutex_lock(&hdmi->audio_mutex);
+	hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mtmdsclock,
+				 hdmi->sample_rate);
+	mutex_unlock(&hdmi->audio_mutex);
+}
+
+void dw_hdmi_set_sample_width(struct dw_hdmi *hdmi, unsigned int width)
+{
+	mutex_lock(&hdmi->audio_mutex);
+	hdmi->sample_width = width;
+	mutex_unlock(&hdmi->audio_mutex);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_set_sample_width);
+
+void dw_hdmi_set_sample_non_pcm(struct dw_hdmi *hdmi, unsigned int non_pcm)
+{
+	mutex_lock(&hdmi->audio_mutex);
+	hdmi->sample_non_pcm = non_pcm;
+	mutex_unlock(&hdmi->audio_mutex);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_set_sample_non_pcm);
+
+void dw_hdmi_set_sample_rate(struct dw_hdmi *hdmi, unsigned int rate)
+{
+	mutex_lock(&hdmi->audio_mutex);
+	hdmi->sample_rate = rate;
+	hdmi_set_clk_regenerator(hdmi, hdmi->hdmi_data.video_mode.mtmdsclock,
+				 hdmi->sample_rate);
+	mutex_unlock(&hdmi->audio_mutex);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_set_sample_rate);
+
+void dw_hdmi_set_channel_count(struct dw_hdmi *hdmi, unsigned int cnt)
+{
+	u8 layout;
+
+	mutex_lock(&hdmi->audio_mutex);
+	hdmi->channels = cnt;
+
+	/*
+	 * For >2 channel PCM audio, we need to select layout 1
+	 * and set an appropriate channel map.
+	 */
+	if (cnt > 2)
+		layout = HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_LAYOUT1;
+	else
+		layout = HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_LAYOUT0;
+
+	hdmi_modb(hdmi, layout, HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_MASK,
+		  HDMI_FC_AUDSCONF);
+
+	/* Set the audio infoframes channel count */
+	hdmi_modb(hdmi, (cnt - 1) << HDMI_FC_AUDICONF0_CC_OFFSET,
+		  HDMI_FC_AUDICONF0_CC_MASK, HDMI_FC_AUDICONF0);
+
+	mutex_unlock(&hdmi->audio_mutex);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_set_channel_count);
+
+void dw_hdmi_set_channel_allocation(struct dw_hdmi *hdmi, unsigned int ca)
+{
+	mutex_lock(&hdmi->audio_mutex);
+
+	hdmi_writeb(hdmi, ca, HDMI_FC_AUDICONF2);
+
+	mutex_unlock(&hdmi->audio_mutex);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_set_channel_allocation);
+
+static void hdmi_enable_audio_clk(struct dw_hdmi *hdmi, bool enable)
+{
+	if (enable)
+		hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_AUDCLK_DISABLE;
+	else
+		hdmi->mc_clkdis |= HDMI_MC_CLKDIS_AUDCLK_DISABLE;
+	hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS);
+}
+
+static u8 *hdmi_audio_get_eld(struct dw_hdmi *hdmi)
+{
+	if (!hdmi->curr_conn)
+		return NULL;
+
+	return hdmi->curr_conn->eld;
+}
+
+static void dw_hdmi_gp_audio_enable(struct dw_hdmi *hdmi)
+{
+	const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
+	int sample_freq = 0x2, org_sample_freq = 0xD;
+	int ch_mask = BIT(hdmi->channels) - 1;
+
+	switch (hdmi->sample_rate) {
+	case 32000:
+		sample_freq = 0x03;
+		org_sample_freq = 0x0C;
+		break;
+	case 44100:
+		sample_freq = 0x00;
+		org_sample_freq = 0x0F;
+		break;
+	case 48000:
+		sample_freq = 0x02;
+		org_sample_freq = 0x0D;
+		break;
+	case 88200:
+		sample_freq = 0x08;
+		org_sample_freq = 0x07;
+		break;
+	case 96000:
+		sample_freq = 0x0A;
+		org_sample_freq = 0x05;
+		break;
+	case 176400:
+		sample_freq = 0x0C;
+		org_sample_freq = 0x03;
+		break;
+	case 192000:
+		sample_freq = 0x0E;
+		org_sample_freq = 0x01;
+		break;
+	default:
+		break;
+	}
+
+	hdmi_set_cts_n(hdmi, hdmi->audio_cts, hdmi->audio_n);
+	hdmi_enable_audio_clk(hdmi, true);
+
+	hdmi_writeb(hdmi, 0x1, HDMI_FC_AUDSCHNLS0);
+	hdmi_writeb(hdmi, hdmi->channels, HDMI_FC_AUDSCHNLS2);
+	hdmi_writeb(hdmi, 0x22, HDMI_FC_AUDSCHNLS3);
+	hdmi_writeb(hdmi, 0x22, HDMI_FC_AUDSCHNLS4);
+	hdmi_writeb(hdmi, 0x11, HDMI_FC_AUDSCHNLS5);
+	hdmi_writeb(hdmi, 0x11, HDMI_FC_AUDSCHNLS6);
+	hdmi_writeb(hdmi, (0x3 << 4) | sample_freq, HDMI_FC_AUDSCHNLS7);
+	hdmi_writeb(hdmi, (org_sample_freq << 4) | 0xb, HDMI_FC_AUDSCHNLS8);
+
+	hdmi_writeb(hdmi, ch_mask, HDMI_GP_CONF1);
+	hdmi_writeb(hdmi, 0x02, HDMI_GP_CONF2);
+	hdmi_writeb(hdmi, 0x01, HDMI_GP_CONF0);
+
+	hdmi_modb(hdmi,  0x3, 0x3, HDMI_FC_DATAUTO3);
+
+	/* hbr */
+	if (hdmi->sample_rate == 192000 && hdmi->channels == 8 &&
+	    hdmi->sample_width == 32 && hdmi->sample_non_pcm)
+		hdmi_modb(hdmi, 0x01, 0x01, HDMI_GP_CONF2);
+
+	if (pdata->enable_audio)
+		pdata->enable_audio(hdmi,
+					    hdmi->channels,
+					    hdmi->sample_width,
+					    hdmi->sample_rate,
+					    hdmi->sample_non_pcm);
+}
+
+static void dw_hdmi_gp_audio_disable(struct dw_hdmi *hdmi)
+{
+	const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
+
+	hdmi_set_cts_n(hdmi, hdmi->audio_cts, 0);
+
+	hdmi_modb(hdmi,  0, 0x3, HDMI_FC_DATAUTO3);
+	if (pdata->disable_audio)
+		pdata->disable_audio(hdmi);
+
+	hdmi_enable_audio_clk(hdmi, false);
+}
+
+static void dw_hdmi_ahb_audio_enable(struct dw_hdmi *hdmi)
+{
+	hdmi_set_cts_n(hdmi, hdmi->audio_cts, hdmi->audio_n);
+}
+
+static void dw_hdmi_ahb_audio_disable(struct dw_hdmi *hdmi)
+{
+	hdmi_set_cts_n(hdmi, hdmi->audio_cts, 0);
+}
+
+static void dw_hdmi_i2s_audio_enable(struct dw_hdmi *hdmi)
+{
+	hdmi_set_cts_n(hdmi, hdmi->audio_cts, hdmi->audio_n);
+	hdmi_enable_audio_clk(hdmi, true);
+}
+
+static void dw_hdmi_i2s_audio_disable(struct dw_hdmi *hdmi)
+{
+	hdmi_enable_audio_clk(hdmi, false);
+}
+
+void dw_hdmi_audio_enable(struct dw_hdmi *hdmi)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&hdmi->audio_lock, flags);
+	hdmi->audio_enable = true;
+	if (hdmi->enable_audio)
+		hdmi->enable_audio(hdmi);
+	spin_unlock_irqrestore(&hdmi->audio_lock, flags);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_audio_enable);
+
+void dw_hdmi_audio_disable(struct dw_hdmi *hdmi)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&hdmi->audio_lock, flags);
+	hdmi->audio_enable = false;
+	if (hdmi->disable_audio)
+		hdmi->disable_audio(hdmi);
+	spin_unlock_irqrestore(&hdmi->audio_lock, flags);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_audio_disable);
+
+static bool hdmi_bus_fmt_is_rgb(unsigned int bus_format)
+{
+	switch (bus_format) {
+	case MEDIA_BUS_FMT_RGB888_1X24:
+	case MEDIA_BUS_FMT_RGB101010_1X30:
+	case MEDIA_BUS_FMT_RGB121212_1X36:
+	case MEDIA_BUS_FMT_RGB161616_1X48:
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+static bool hdmi_bus_fmt_is_yuv444(unsigned int bus_format)
+{
+	switch (bus_format) {
+	case MEDIA_BUS_FMT_YUV8_1X24:
+	case MEDIA_BUS_FMT_YUV10_1X30:
+	case MEDIA_BUS_FMT_YUV12_1X36:
+	case MEDIA_BUS_FMT_YUV16_1X48:
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+static bool hdmi_bus_fmt_is_yuv422(unsigned int bus_format)
+{
+	switch (bus_format) {
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+	case MEDIA_BUS_FMT_UYVY10_1X20:
+	case MEDIA_BUS_FMT_UYVY12_1X24:
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+static bool hdmi_bus_fmt_is_yuv420(unsigned int bus_format)
+{
+	switch (bus_format) {
+	case MEDIA_BUS_FMT_UYYVYY8_0_5X24:
+	case MEDIA_BUS_FMT_UYYVYY10_0_5X30:
+	case MEDIA_BUS_FMT_UYYVYY12_0_5X36:
+	case MEDIA_BUS_FMT_UYYVYY16_0_5X48:
+		return true;
+
+	default:
+		return false;
+	}
+}
+
+static int hdmi_bus_fmt_color_depth(unsigned int bus_format)
+{
+	switch (bus_format) {
+	case MEDIA_BUS_FMT_RGB888_1X24:
+	case MEDIA_BUS_FMT_YUV8_1X24:
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+	case MEDIA_BUS_FMT_UYYVYY8_0_5X24:
+		return 8;
+
+	case MEDIA_BUS_FMT_RGB101010_1X30:
+	case MEDIA_BUS_FMT_YUV10_1X30:
+	case MEDIA_BUS_FMT_UYVY10_1X20:
+	case MEDIA_BUS_FMT_UYYVYY10_0_5X30:
+		return 10;
+
+	case MEDIA_BUS_FMT_RGB121212_1X36:
+	case MEDIA_BUS_FMT_YUV12_1X36:
+	case MEDIA_BUS_FMT_UYVY12_1X24:
+	case MEDIA_BUS_FMT_UYYVYY12_0_5X36:
+		return 12;
+
+	case MEDIA_BUS_FMT_RGB161616_1X48:
+	case MEDIA_BUS_FMT_YUV16_1X48:
+	case MEDIA_BUS_FMT_UYYVYY16_0_5X48:
+		return 16;
+
+	default:
+		return 0;
+	}
+}
+
+/*
+ * this submodule is responsible for the video data synchronization.
+ * for example, for RGB 4:4:4 input, the data map is defined as
+ *			pin{47~40} <==> R[7:0]
+ *			pin{31~24} <==> G[7:0]
+ *			pin{15~8}  <==> B[7:0]
+ */
+static void hdmi_video_sample(struct dw_hdmi *hdmi)
+{
+	int color_format = 0;
+	u8 val;
+
+	switch (hdmi->hdmi_data.enc_in_bus_format) {
+	case MEDIA_BUS_FMT_RGB888_1X24:
+		color_format = 0x01;
+		break;
+	case MEDIA_BUS_FMT_RGB101010_1X30:
+		color_format = 0x03;
+		break;
+	case MEDIA_BUS_FMT_RGB121212_1X36:
+		color_format = 0x05;
+		break;
+	case MEDIA_BUS_FMT_RGB161616_1X48:
+		color_format = 0x07;
+		break;
+
+	case MEDIA_BUS_FMT_YUV8_1X24:
+	case MEDIA_BUS_FMT_UYYVYY8_0_5X24:
+		color_format = 0x09;
+		break;
+	case MEDIA_BUS_FMT_YUV10_1X30:
+	case MEDIA_BUS_FMT_UYYVYY10_0_5X30:
+		color_format = 0x0B;
+		break;
+	case MEDIA_BUS_FMT_YUV12_1X36:
+	case MEDIA_BUS_FMT_UYYVYY12_0_5X36:
+		color_format = 0x0D;
+		break;
+	case MEDIA_BUS_FMT_YUV16_1X48:
+	case MEDIA_BUS_FMT_UYYVYY16_0_5X48:
+		color_format = 0x0F;
+		break;
+
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+		color_format = 0x16;
+		break;
+	case MEDIA_BUS_FMT_UYVY10_1X20:
+		color_format = 0x14;
+		break;
+	case MEDIA_BUS_FMT_UYVY12_1X24:
+		color_format = 0x12;
+		break;
+
+	default:
+		return;
+	}
+
+	val = HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_DISABLE |
+		((color_format << HDMI_TX_INVID0_VIDEO_MAPPING_OFFSET) &
+		HDMI_TX_INVID0_VIDEO_MAPPING_MASK);
+	hdmi_writeb(hdmi, val, HDMI_TX_INVID0);
+
+	/* Enable TX stuffing: When DE is inactive, fix the output data to 0 */
+	val = HDMI_TX_INSTUFFING_BDBDATA_STUFFING_ENABLE |
+		HDMI_TX_INSTUFFING_RCRDATA_STUFFING_ENABLE |
+		HDMI_TX_INSTUFFING_GYDATA_STUFFING_ENABLE;
+	hdmi_writeb(hdmi, val, HDMI_TX_INSTUFFING);
+	hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA0);
+	hdmi_writeb(hdmi, 0x0, HDMI_TX_GYDATA1);
+	hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA0);
+	hdmi_writeb(hdmi, 0x0, HDMI_TX_RCRDATA1);
+	hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA0);
+	hdmi_writeb(hdmi, 0x0, HDMI_TX_BCBDATA1);
+}
+
+static int is_color_space_conversion(struct dw_hdmi *hdmi)
+{
+	struct hdmi_data_info *hdmi_data = &hdmi->hdmi_data;
+	bool is_input_rgb, is_output_rgb;
+
+	is_input_rgb = hdmi_bus_fmt_is_rgb(hdmi_data->enc_in_bus_format);
+	is_output_rgb = hdmi_bus_fmt_is_rgb(hdmi_data->enc_out_bus_format);
+
+	return (is_input_rgb != is_output_rgb) ||
+	       (is_input_rgb && is_output_rgb && hdmi_data->rgb_limited_range);
+}
+
+static int is_color_space_decimation(struct dw_hdmi *hdmi)
+{
+	if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format))
+		return 0;
+
+	if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_in_bus_format) ||
+	    hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_in_bus_format))
+		return 1;
+
+	return 0;
+}
+
+static int is_color_space_interpolation(struct dw_hdmi *hdmi)
+{
+	if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_in_bus_format))
+		return 0;
+
+	if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format) ||
+	    hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format))
+		return 1;
+
+	return 0;
+}
+
+static bool is_csc_needed(struct dw_hdmi *hdmi)
+{
+	return is_color_space_conversion(hdmi) ||
+	       is_color_space_decimation(hdmi) ||
+	       is_color_space_interpolation(hdmi);
+}
+
+static void dw_hdmi_update_csc_coeffs(struct dw_hdmi *hdmi)
+{
+	const u16 (*csc_coeff)[3][4] = &csc_coeff_default;
+	bool is_input_rgb, is_output_rgb;
+	unsigned i;
+	u32 csc_scale = 1;
+
+	is_input_rgb = hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_in_bus_format);
+	is_output_rgb = hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format);
+
+	if (!is_input_rgb && is_output_rgb) {
+		if (hdmi->hdmi_data.enc_out_encoding == V4L2_YCBCR_ENC_601)
+			csc_coeff = &csc_coeff_rgb_out_eitu601;
+		else
+			csc_coeff = &csc_coeff_rgb_out_eitu709;
+	} else if (is_input_rgb && !is_output_rgb) {
+		if (hdmi->hdmi_data.enc_out_encoding == V4L2_YCBCR_ENC_601)
+			csc_coeff = &csc_coeff_rgb_in_eitu601;
+		else
+			csc_coeff = &csc_coeff_rgb_in_eitu709;
+		csc_scale = 0;
+	} else if (is_input_rgb && is_output_rgb &&
+		   hdmi->hdmi_data.rgb_limited_range) {
+		csc_coeff = &csc_coeff_rgb_full_to_rgb_limited;
+	}
+
+	/* The CSC registers are sequential, alternating MSB then LSB */
+	for (i = 0; i < ARRAY_SIZE(csc_coeff_default[0]); i++) {
+		u16 coeff_a = (*csc_coeff)[0][i];
+		u16 coeff_b = (*csc_coeff)[1][i];
+		u16 coeff_c = (*csc_coeff)[2][i];
+
+		hdmi_writeb(hdmi, coeff_a & 0xff, HDMI_CSC_COEF_A1_LSB + i * 2);
+		hdmi_writeb(hdmi, coeff_a >> 8, HDMI_CSC_COEF_A1_MSB + i * 2);
+		hdmi_writeb(hdmi, coeff_b & 0xff, HDMI_CSC_COEF_B1_LSB + i * 2);
+		hdmi_writeb(hdmi, coeff_b >> 8, HDMI_CSC_COEF_B1_MSB + i * 2);
+		hdmi_writeb(hdmi, coeff_c & 0xff, HDMI_CSC_COEF_C1_LSB + i * 2);
+		hdmi_writeb(hdmi, coeff_c >> 8, HDMI_CSC_COEF_C1_MSB + i * 2);
+	}
+
+	hdmi_modb(hdmi, csc_scale, HDMI_CSC_SCALE_CSCSCALE_MASK,
+		  HDMI_CSC_SCALE);
+}
+
+static void hdmi_video_csc(struct dw_hdmi *hdmi)
+{
+	int color_depth = 0;
+	int interpolation = HDMI_CSC_CFG_INTMODE_DISABLE;
+	int decimation = 0;
+
+	/* YCC422 interpolation to 444 mode */
+	if (is_color_space_interpolation(hdmi))
+		interpolation = HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1;
+	else if (is_color_space_decimation(hdmi))
+		decimation = HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA3;
+
+	switch (hdmi_bus_fmt_color_depth(hdmi->hdmi_data.enc_out_bus_format)) {
+	case 8:
+		color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_24BPP;
+		break;
+	case 10:
+		color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_30BPP;
+		break;
+	case 12:
+		color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_36BPP;
+		break;
+	case 16:
+		color_depth = HDMI_CSC_SCALE_CSC_COLORDE_PTH_48BPP;
+		break;
+
+	default:
+		return;
+	}
+
+	/* Configure the CSC registers */
+	hdmi_writeb(hdmi, interpolation | decimation, HDMI_CSC_CFG);
+	hdmi_modb(hdmi, color_depth, HDMI_CSC_SCALE_CSC_COLORDE_PTH_MASK,
+		  HDMI_CSC_SCALE);
+
+	dw_hdmi_update_csc_coeffs(hdmi);
+}
+
+/*
+ * HDMI video packetizer is used to packetize the data.
+ * for example, if input is YCC422 mode or repeater is used,
+ * data should be repacked this module can be bypassed.
+ */
+static void hdmi_video_packetize(struct dw_hdmi *hdmi)
+{
+	unsigned int color_depth = 0;
+	unsigned int remap_size = HDMI_VP_REMAP_YCC422_16bit;
+	unsigned int output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_PP;
+	struct hdmi_data_info *hdmi_data = &hdmi->hdmi_data;
+	u8 val, vp_conf;
+	u8 clear_gcp_auto = 0;
+
+
+	if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format) ||
+	    hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format) ||
+	    hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format)) {
+		switch (hdmi_bus_fmt_color_depth(
+					hdmi->hdmi_data.enc_out_bus_format)) {
+		case 8:
+			color_depth = 4;
+			output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
+			clear_gcp_auto = 1;
+			break;
+		case 10:
+			color_depth = 5;
+			break;
+		case 12:
+			color_depth = 6;
+			break;
+		case 16:
+			color_depth = 7;
+			break;
+		default:
+			output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS;
+		}
+	} else if (hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) {
+		switch (hdmi_bus_fmt_color_depth(
+					hdmi->hdmi_data.enc_out_bus_format)) {
+		case 0:
+		case 8:
+			remap_size = HDMI_VP_REMAP_YCC422_16bit;
+			clear_gcp_auto = 1;
+			break;
+		case 10:
+			remap_size = HDMI_VP_REMAP_YCC422_20bit;
+			break;
+		case 12:
+			remap_size = HDMI_VP_REMAP_YCC422_24bit;
+			break;
+
+		default:
+			return;
+		}
+		output_select = HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422;
+	} else {
+		return;
+	}
+
+	/* set the packetizer registers */
+	val = ((color_depth << HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET) &
+		HDMI_VP_PR_CD_COLOR_DEPTH_MASK) |
+		((hdmi_data->pix_repet_factor <<
+		HDMI_VP_PR_CD_DESIRED_PR_FACTOR_OFFSET) &
+		HDMI_VP_PR_CD_DESIRED_PR_FACTOR_MASK);
+	hdmi_writeb(hdmi, val, HDMI_VP_PR_CD);
+
+	/* HDMI1.4b specification section 6.5.3:
+	 * Source shall only send GCPs with non-zero CD to sinks
+	 * that indicate support for Deep Color.
+	 * GCP only transmit CD and do not handle AVMUTE, PP norDefault_Phase (yet).
+	 * Disable Auto GCP when 24-bit color for sinks that not support Deep Color.
+	 */
+	val = hdmi_readb(hdmi, HDMI_FC_DATAUTO3);
+	if (clear_gcp_auto == 1)
+		val &= ~HDMI_FC_DATAUTO3_GCP_AUTO;
+	else
+		val |= HDMI_FC_DATAUTO3_GCP_AUTO;
+	hdmi_writeb(hdmi, val, HDMI_FC_DATAUTO3);
+
+	hdmi_modb(hdmi, HDMI_VP_STUFF_PR_STUFFING_STUFFING_MODE,
+		  HDMI_VP_STUFF_PR_STUFFING_MASK, HDMI_VP_STUFF);
+
+	/* Data from pixel repeater block */
+	if (hdmi_data->pix_repet_factor > 1) {
+		vp_conf = HDMI_VP_CONF_PR_EN_ENABLE |
+			  HDMI_VP_CONF_BYPASS_SELECT_PIX_REPEATER;
+	} else { /* data from packetizer block */
+		vp_conf = HDMI_VP_CONF_PR_EN_DISABLE |
+			  HDMI_VP_CONF_BYPASS_SELECT_VID_PACKETIZER;
+	}
+
+	hdmi_modb(hdmi, vp_conf,
+		  HDMI_VP_CONF_PR_EN_MASK |
+		  HDMI_VP_CONF_BYPASS_SELECT_MASK, HDMI_VP_CONF);
+
+	hdmi_modb(hdmi, 1 << HDMI_VP_STUFF_IDEFAULT_PHASE_OFFSET,
+		  HDMI_VP_STUFF_IDEFAULT_PHASE_MASK, HDMI_VP_STUFF);
+
+	hdmi_writeb(hdmi, remap_size, HDMI_VP_REMAP);
+
+	if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_PP) {
+		vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE |
+			  HDMI_VP_CONF_PP_EN_ENABLE |
+			  HDMI_VP_CONF_YCC422_EN_DISABLE;
+	} else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422) {
+		vp_conf = HDMI_VP_CONF_BYPASS_EN_DISABLE |
+			  HDMI_VP_CONF_PP_EN_DISABLE |
+			  HDMI_VP_CONF_YCC422_EN_ENABLE;
+	} else if (output_select == HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS) {
+		vp_conf = HDMI_VP_CONF_BYPASS_EN_ENABLE |
+			  HDMI_VP_CONF_PP_EN_DISABLE |
+			  HDMI_VP_CONF_YCC422_EN_DISABLE;
+	} else {
+		return;
+	}
+
+	hdmi_modb(hdmi, vp_conf,
+		  HDMI_VP_CONF_BYPASS_EN_MASK | HDMI_VP_CONF_PP_EN_ENMASK |
+		  HDMI_VP_CONF_YCC422_EN_MASK, HDMI_VP_CONF);
+
+	hdmi_modb(hdmi, HDMI_VP_STUFF_PP_STUFFING_STUFFING_MODE |
+			HDMI_VP_STUFF_YCC422_STUFFING_STUFFING_MODE,
+		  HDMI_VP_STUFF_PP_STUFFING_MASK |
+		  HDMI_VP_STUFF_YCC422_STUFFING_MASK, HDMI_VP_STUFF);
+
+	hdmi_modb(hdmi, output_select, HDMI_VP_CONF_OUTPUT_SELECTOR_MASK,
+		  HDMI_VP_CONF);
+}
+
+/* -----------------------------------------------------------------------------
+ * Synopsys PHY Handling
+ */
+
+static inline void hdmi_phy_test_clear(struct dw_hdmi *hdmi,
+				       unsigned char bit)
+{
+	hdmi_modb(hdmi, bit << HDMI_PHY_TST0_TSTCLR_OFFSET,
+		  HDMI_PHY_TST0_TSTCLR_MASK, HDMI_PHY_TST0);
+}
+
+static bool hdmi_phy_wait_i2c_done(struct dw_hdmi *hdmi, int msec)
+{
+	u32 val;
+
+	while ((val = hdmi_readb(hdmi, HDMI_IH_I2CMPHY_STAT0) & 0x3) == 0) {
+		if (msec-- == 0)
+			return false;
+		udelay(1000);
+	}
+	hdmi_writeb(hdmi, val, HDMI_IH_I2CMPHY_STAT0);
+
+	return true;
+}
+
+void dw_hdmi_phy_i2c_write(struct dw_hdmi *hdmi, unsigned short data,
+			   unsigned char addr)
+{
+	hdmi_writeb(hdmi, 0xFF, HDMI_IH_I2CMPHY_STAT0);
+	hdmi_writeb(hdmi, addr, HDMI_PHY_I2CM_ADDRESS_ADDR);
+	hdmi_writeb(hdmi, (unsigned char)(data >> 8),
+		    HDMI_PHY_I2CM_DATAO_1_ADDR);
+	hdmi_writeb(hdmi, (unsigned char)(data >> 0),
+		    HDMI_PHY_I2CM_DATAO_0_ADDR);
+	hdmi_writeb(hdmi, HDMI_PHY_I2CM_OPERATION_ADDR_WRITE,
+		    HDMI_PHY_I2CM_OPERATION_ADDR);
+	hdmi_phy_wait_i2c_done(hdmi, 1000);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_phy_i2c_write);
+
+/* Filter out invalid setups to avoid configuring SCDC and scrambling */
+static bool dw_hdmi_support_scdc(struct dw_hdmi *hdmi,
+				 const struct drm_display_info *display)
+{
+	/* Completely disable SCDC support for older controllers */
+	if (hdmi->version < 0x200a)
+		return false;
+
+	/* Disable if no DDC bus */
+	if (!hdmi->ddc)
+		return false;
+
+	/* Disable if SCDC is not supported, or if an HF-VSDB block is absent */
+	if (!display->hdmi.scdc.supported ||
+	    !display->hdmi.scdc.scrambling.supported)
+		return false;
+
+	/*
+	 * Disable if display only support low TMDS rates and scrambling
+	 * for low rates is not supported either
+	 */
+	if (!display->hdmi.scdc.scrambling.low_rates &&
+	    display->max_tmds_clock <= 340000)
+		return false;
+
+	return true;
+}
+
+/*
+ * HDMI2.0 Specifies the following procedure for High TMDS Bit Rates:
+ * - The Source shall suspend transmission of the TMDS clock and data
+ * - The Source shall write to the TMDS_Bit_Clock_Ratio bit to change it
+ * from a 0 to a 1 or from a 1 to a 0
+ * - The Source shall allow a minimum of 1 ms and a maximum of 100 ms from
+ * the time the TMDS_Bit_Clock_Ratio bit is written until resuming
+ * transmission of TMDS clock and data
+ *
+ * To respect the 100ms maximum delay, the dw_hdmi_set_high_tmds_clock_ratio()
+ * helper should called right before enabling the TMDS Clock and Data in
+ * the PHY configuration callback.
+ */
+void dw_hdmi_set_high_tmds_clock_ratio(struct dw_hdmi *hdmi,
+				       const struct drm_display_info *display)
+{
+	unsigned long mtmdsclock = hdmi->hdmi_data.video_mode.mtmdsclock;
+
+	/* Control for TMDS Bit Period/TMDS Clock-Period Ratio */
+	if (dw_hdmi_support_scdc(hdmi, display)) {
+		if (mtmdsclock > HDMI14_MAX_TMDSCLK)
+			drm_scdc_set_high_tmds_clock_ratio(hdmi->ddc, 1);
+		else
+			drm_scdc_set_high_tmds_clock_ratio(hdmi->ddc, 0);
+	}
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_set_high_tmds_clock_ratio);
+
+static void dw_hdmi_phy_enable_powerdown(struct dw_hdmi *hdmi, bool enable)
+{
+	hdmi_mask_writeb(hdmi, !enable, HDMI_PHY_CONF0,
+			 HDMI_PHY_CONF0_PDZ_OFFSET,
+			 HDMI_PHY_CONF0_PDZ_MASK);
+}
+
+static void dw_hdmi_phy_enable_tmds(struct dw_hdmi *hdmi, u8 enable)
+{
+	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
+			 HDMI_PHY_CONF0_ENTMDS_OFFSET,
+			 HDMI_PHY_CONF0_ENTMDS_MASK);
+}
+
+static void dw_hdmi_phy_enable_svsret(struct dw_hdmi *hdmi, u8 enable)
+{
+	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
+			 HDMI_PHY_CONF0_SVSRET_OFFSET,
+			 HDMI_PHY_CONF0_SVSRET_MASK);
+}
+
+void dw_hdmi_phy_gen2_pddq(struct dw_hdmi *hdmi, u8 enable)
+{
+	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
+			 HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET,
+			 HDMI_PHY_CONF0_GEN2_PDDQ_MASK);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_phy_gen2_pddq);
+
+void dw_hdmi_phy_gen2_txpwron(struct dw_hdmi *hdmi, u8 enable)
+{
+	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
+			 HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET,
+			 HDMI_PHY_CONF0_GEN2_TXPWRON_MASK);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_phy_gen2_txpwron);
+
+static void dw_hdmi_phy_sel_data_en_pol(struct dw_hdmi *hdmi, u8 enable)
+{
+	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
+			 HDMI_PHY_CONF0_SELDATAENPOL_OFFSET,
+			 HDMI_PHY_CONF0_SELDATAENPOL_MASK);
+}
+
+static void dw_hdmi_phy_sel_interface_control(struct dw_hdmi *hdmi, u8 enable)
+{
+	hdmi_mask_writeb(hdmi, enable, HDMI_PHY_CONF0,
+			 HDMI_PHY_CONF0_SELDIPIF_OFFSET,
+			 HDMI_PHY_CONF0_SELDIPIF_MASK);
+}
+
+void dw_hdmi_phy_gen1_reset(struct dw_hdmi *hdmi)
+{
+	/* PHY reset. The reset signal is active low on Gen1 PHYs. */
+	hdmi_writeb(hdmi, 0, HDMI_MC_PHYRSTZ);
+	hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_PHYRSTZ, HDMI_MC_PHYRSTZ);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_phy_gen1_reset);
+
+void dw_hdmi_phy_gen2_reset(struct dw_hdmi *hdmi)
+{
+	/* PHY reset. The reset signal is active high on Gen2 PHYs. */
+	hdmi_writeb(hdmi, HDMI_MC_PHYRSTZ_PHYRSTZ, HDMI_MC_PHYRSTZ);
+	hdmi_writeb(hdmi, 0, HDMI_MC_PHYRSTZ);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_phy_gen2_reset);
+
+void dw_hdmi_phy_i2c_set_addr(struct dw_hdmi *hdmi, u8 address)
+{
+	hdmi_phy_test_clear(hdmi, 1);
+	hdmi_writeb(hdmi, address, HDMI_PHY_I2CM_SLAVE_ADDR);
+	hdmi_phy_test_clear(hdmi, 0);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_phy_i2c_set_addr);
+
+static void dw_hdmi_phy_power_off(struct dw_hdmi *hdmi)
+{
+	const struct dw_hdmi_phy_data *phy = hdmi->phy.data;
+	unsigned int i;
+	u16 val;
+
+	if (phy->gen == 1) {
+		dw_hdmi_phy_enable_tmds(hdmi, 0);
+		dw_hdmi_phy_enable_powerdown(hdmi, true);
+		return;
+	}
+
+	dw_hdmi_phy_gen2_txpwron(hdmi, 0);
+
+	/*
+	 * Wait for TX_PHY_LOCK to be deasserted to indicate that the PHY went
+	 * to low power mode.
+	 */
+	for (i = 0; i < 5; ++i) {
+		val = hdmi_readb(hdmi, HDMI_PHY_STAT0);
+		if (!(val & HDMI_PHY_TX_PHY_LOCK))
+			break;
+
+		usleep_range(1000, 2000);
+	}
+
+	if (val & HDMI_PHY_TX_PHY_LOCK)
+		dev_warn(hdmi->dev, "PHY failed to power down\n");
+	else
+		dev_dbg(hdmi->dev, "PHY powered down in %u iterations\n", i);
+
+	dw_hdmi_phy_gen2_pddq(hdmi, 1);
+}
+
+static int dw_hdmi_phy_power_on(struct dw_hdmi *hdmi)
+{
+	const struct dw_hdmi_phy_data *phy = hdmi->phy.data;
+	unsigned int i;
+	u8 val;
+
+	if (phy->gen == 1) {
+		dw_hdmi_phy_enable_powerdown(hdmi, false);
+
+		/* Toggle TMDS enable. */
+		dw_hdmi_phy_enable_tmds(hdmi, 0);
+		dw_hdmi_phy_enable_tmds(hdmi, 1);
+		return 0;
+	}
+
+	dw_hdmi_phy_gen2_txpwron(hdmi, 1);
+	dw_hdmi_phy_gen2_pddq(hdmi, 0);
+
+	/* Wait for PHY PLL lock */
+	for (i = 0; i < 5; ++i) {
+		val = hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_TX_PHY_LOCK;
+		if (val)
+			break;
+
+		usleep_range(1000, 2000);
+	}
+
+	if (!val) {
+		dev_err(hdmi->dev, "PHY PLL failed to lock\n");
+		return -ETIMEDOUT;
+	}
+
+	dev_dbg(hdmi->dev, "PHY PLL locked %u iterations\n", i);
+	return 0;
+}
+
+/*
+ * PHY configuration function for the DWC HDMI 3D TX PHY. Based on the available
+ * information the DWC MHL PHY has the same register layout and is thus also
+ * supported by this function.
+ */
+static int hdmi_phy_configure_dwc_hdmi_3d_tx(struct dw_hdmi *hdmi,
+		const struct dw_hdmi_plat_data *pdata,
+		unsigned long mpixelclock)
+{
+	const struct dw_hdmi_mpll_config *mpll_config = pdata->mpll_cfg;
+	const struct dw_hdmi_curr_ctrl *curr_ctrl = pdata->cur_ctr;
+	const struct dw_hdmi_phy_config *phy_config = pdata->phy_config;
+
+	/* TOFIX Will need 420 specific PHY configuration tables */
+
+	/* PLL/MPLL Cfg - always match on final entry */
+	for (; mpll_config->mpixelclock != ~0UL; mpll_config++)
+		if (mpixelclock <= mpll_config->mpixelclock)
+			break;
+
+	for (; curr_ctrl->mpixelclock != ~0UL; curr_ctrl++)
+		if (mpixelclock <= curr_ctrl->mpixelclock)
+			break;
+
+	for (; phy_config->mpixelclock != ~0UL; phy_config++)
+		if (mpixelclock <= phy_config->mpixelclock)
+			break;
+
+	if (mpll_config->mpixelclock == ~0UL ||
+	    curr_ctrl->mpixelclock == ~0UL ||
+	    phy_config->mpixelclock == ~0UL)
+		return -EINVAL;
+
+	dw_hdmi_phy_i2c_write(hdmi, mpll_config->res[0].cpce,
+			      HDMI_3D_TX_PHY_CPCE_CTRL);
+	dw_hdmi_phy_i2c_write(hdmi, mpll_config->res[0].gmp,
+			      HDMI_3D_TX_PHY_GMPCTRL);
+	dw_hdmi_phy_i2c_write(hdmi, curr_ctrl->curr[0],
+			      HDMI_3D_TX_PHY_CURRCTRL);
+
+	dw_hdmi_phy_i2c_write(hdmi, 0, HDMI_3D_TX_PHY_PLLPHBYCTRL);
+	dw_hdmi_phy_i2c_write(hdmi, HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_FB_CLK,
+			      HDMI_3D_TX_PHY_MSM_CTRL);
+
+	dw_hdmi_phy_i2c_write(hdmi, phy_config->term, HDMI_3D_TX_PHY_TXTERM);
+	dw_hdmi_phy_i2c_write(hdmi, phy_config->sym_ctr,
+			      HDMI_3D_TX_PHY_CKSYMTXCTRL);
+	dw_hdmi_phy_i2c_write(hdmi, phy_config->vlev_ctr,
+			      HDMI_3D_TX_PHY_VLEVCTRL);
+
+	/* Override and disable clock termination. */
+	dw_hdmi_phy_i2c_write(hdmi, HDMI_3D_TX_PHY_CKCALCTRL_OVERRIDE,
+			      HDMI_3D_TX_PHY_CKCALCTRL);
+
+	return 0;
+}
+
+static int hdmi_phy_configure(struct dw_hdmi *hdmi,
+			      const struct drm_display_info *display)
+{
+	const struct dw_hdmi_phy_data *phy = hdmi->phy.data;
+	const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
+	unsigned long mpixelclock = hdmi->hdmi_data.video_mode.mpixelclock;
+	unsigned long mtmdsclock = hdmi->hdmi_data.video_mode.mtmdsclock;
+	int ret;
+
+	dw_hdmi_phy_power_off(hdmi);
+
+	dw_hdmi_set_high_tmds_clock_ratio(hdmi, display);
+
+	/* Leave low power consumption mode by asserting SVSRET. */
+	if (phy->has_svsret)
+		dw_hdmi_phy_enable_svsret(hdmi, 1);
+
+	dw_hdmi_phy_gen2_reset(hdmi);
+
+	hdmi_writeb(hdmi, HDMI_MC_HEACPHY_RST_ASSERT, HDMI_MC_HEACPHY_RST);
+
+	dw_hdmi_phy_i2c_set_addr(hdmi, HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2);
+
+	/* Write to the PHY as configured by the platform */
+	if (pdata->configure_phy)
+		ret = pdata->configure_phy(hdmi, pdata->priv_data, mpixelclock);
+	else
+		ret = phy->configure(hdmi, pdata, mpixelclock);
+	if (ret) {
+		dev_err(hdmi->dev, "PHY configuration failed (clock %lu)\n",
+			mpixelclock);
+		return ret;
+	}
+
+	/* Wait for resuming transmission of TMDS clock and data */
+	if (mtmdsclock > HDMI14_MAX_TMDSCLK)
+		msleep(100);
+
+	return dw_hdmi_phy_power_on(hdmi);
+}
+
+static int dw_hdmi_phy_init(struct dw_hdmi *hdmi, void *data,
+			    const struct drm_display_info *display,
+			    const struct drm_display_mode *mode)
+{
+	int i, ret;
+
+	/* HDMI Phy spec says to do the phy initialization sequence twice */
+	for (i = 0; i < 2; i++) {
+		dw_hdmi_phy_sel_data_en_pol(hdmi, 1);
+		dw_hdmi_phy_sel_interface_control(hdmi, 0);
+
+		ret = hdmi_phy_configure(hdmi, display);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static void dw_hdmi_phy_disable(struct dw_hdmi *hdmi, void *data)
+{
+	dw_hdmi_phy_power_off(hdmi);
+}
+
+enum drm_connector_status dw_hdmi_phy_read_hpd(struct dw_hdmi *hdmi,
+					       void *data)
+{
+	return hdmi_readb(hdmi, HDMI_PHY_STAT0) & HDMI_PHY_HPD ?
+		connector_status_connected : connector_status_disconnected;
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_phy_read_hpd);
+
+void dw_hdmi_phy_update_hpd(struct dw_hdmi *hdmi, void *data,
+			    bool force, bool disabled, bool rxsense)
+{
+	u8 old_mask = hdmi->phy_mask;
+
+	if (force || disabled || !rxsense)
+		hdmi->phy_mask |= HDMI_PHY_RX_SENSE;
+	else
+		hdmi->phy_mask &= ~HDMI_PHY_RX_SENSE;
+
+	if (old_mask != hdmi->phy_mask)
+		hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_phy_update_hpd);
+
+void dw_hdmi_phy_setup_hpd(struct dw_hdmi *hdmi, void *data)
+{
+	/*
+	 * Configure the PHY RX SENSE and HPD interrupts polarities and clear
+	 * any pending interrupt.
+	 */
+	hdmi_writeb(hdmi, HDMI_PHY_HPD | HDMI_PHY_RX_SENSE, HDMI_PHY_POL0);
+	hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE,
+		    HDMI_IH_PHY_STAT0);
+
+	/* Enable cable hot plug irq. */
+	hdmi_writeb(hdmi, hdmi->phy_mask, HDMI_PHY_MASK0);
+
+	/* Clear and unmute interrupts. */
+	hdmi_writeb(hdmi, HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE,
+		    HDMI_IH_PHY_STAT0);
+	hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE),
+		    HDMI_IH_MUTE_PHY_STAT0);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_phy_setup_hpd);
+
+static const struct dw_hdmi_phy_ops dw_hdmi_synopsys_phy_ops = {
+	.init = dw_hdmi_phy_init,
+	.disable = dw_hdmi_phy_disable,
+	.read_hpd = dw_hdmi_phy_read_hpd,
+	.update_hpd = dw_hdmi_phy_update_hpd,
+	.setup_hpd = dw_hdmi_phy_setup_hpd,
+};
+
+/* -----------------------------------------------------------------------------
+ * HDMI TX Setup
+ */
+
+static void hdmi_tx_hdcp_config(struct dw_hdmi *hdmi)
+{
+	u8 de;
+
+	if (hdmi->hdmi_data.video_mode.mdataenablepolarity)
+		de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH;
+	else
+		de = HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_LOW;
+
+	/* disable rx detect */
+	hdmi_modb(hdmi, HDMI_A_HDCPCFG0_RXDETECT_DISABLE,
+		  HDMI_A_HDCPCFG0_RXDETECT_MASK, HDMI_A_HDCPCFG0);
+
+	hdmi_modb(hdmi, de, HDMI_A_VIDPOLCFG_DATAENPOL_MASK, HDMI_A_VIDPOLCFG);
+
+	hdmi_modb(hdmi, HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_DISABLE,
+		  HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_MASK, HDMI_A_HDCPCFG1);
+}
+
+static void hdmi_config_AVI(struct dw_hdmi *hdmi,
+			    const struct drm_connector *connector,
+			    const struct drm_display_mode *mode)
+{
+	struct hdmi_avi_infoframe frame;
+	u8 val;
+
+	/* Initialise info frame from DRM mode */
+	drm_hdmi_avi_infoframe_from_display_mode(&frame, connector, mode);
+
+	if (hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format)) {
+		drm_hdmi_avi_infoframe_quant_range(&frame, connector, mode,
+						   hdmi->hdmi_data.rgb_limited_range ?
+						   HDMI_QUANTIZATION_RANGE_LIMITED :
+						   HDMI_QUANTIZATION_RANGE_FULL);
+	} else {
+		frame.quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
+		frame.ycc_quantization_range =
+			HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+	}
+
+	if (hdmi_bus_fmt_is_yuv444(hdmi->hdmi_data.enc_out_bus_format))
+		frame.colorspace = HDMI_COLORSPACE_YUV444;
+	else if (hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format))
+		frame.colorspace = HDMI_COLORSPACE_YUV422;
+	else if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format))
+		frame.colorspace = HDMI_COLORSPACE_YUV420;
+	else
+		frame.colorspace = HDMI_COLORSPACE_RGB;
+
+	/* Set up colorimetry */
+	if (!hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format)) {
+		switch (hdmi->hdmi_data.enc_out_encoding) {
+		case V4L2_YCBCR_ENC_601:
+			if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601)
+				frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
+			else
+				frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
+			frame.extended_colorimetry =
+					HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+			break;
+		case V4L2_YCBCR_ENC_709:
+			if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV709)
+				frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
+			else
+				frame.colorimetry = HDMI_COLORIMETRY_ITU_709;
+			frame.extended_colorimetry =
+					HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
+			break;
+		default: /* Carries no data */
+			frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
+			frame.extended_colorimetry =
+					HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+			break;
+		}
+	} else {
+		frame.colorimetry = HDMI_COLORIMETRY_NONE;
+		frame.extended_colorimetry =
+			HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+	}
+
+	/*
+	 * The Designware IP uses a different byte format from standard
+	 * AVI info frames, though generally the bits are in the correct
+	 * bytes.
+	 */
+
+	/*
+	 * AVI data byte 1 differences: Colorspace in bits 0,1 rather than 5,6,
+	 * scan info in bits 4,5 rather than 0,1 and active aspect present in
+	 * bit 6 rather than 4.
+	 */
+	val = (frame.scan_mode & 3) << 4 | (frame.colorspace & 3);
+	if (frame.active_aspect & 15)
+		val |= HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT;
+	if (frame.top_bar || frame.bottom_bar)
+		val |= HDMI_FC_AVICONF0_BAR_DATA_HORIZ_BAR;
+	if (frame.left_bar || frame.right_bar)
+		val |= HDMI_FC_AVICONF0_BAR_DATA_VERT_BAR;
+	hdmi_writeb(hdmi, val, HDMI_FC_AVICONF0);
+
+	/* AVI data byte 2 differences: none */
+	val = ((frame.colorimetry & 0x3) << 6) |
+	      ((frame.picture_aspect & 0x3) << 4) |
+	      (frame.active_aspect & 0xf);
+	hdmi_writeb(hdmi, val, HDMI_FC_AVICONF1);
+
+	/* AVI data byte 3 differences: none */
+	val = ((frame.extended_colorimetry & 0x7) << 4) |
+	      ((frame.quantization_range & 0x3) << 2) |
+	      (frame.nups & 0x3);
+	if (frame.itc)
+		val |= HDMI_FC_AVICONF2_IT_CONTENT_VALID;
+	hdmi_writeb(hdmi, val, HDMI_FC_AVICONF2);
+
+	/* AVI data byte 4 differences: none */
+	val = frame.video_code & 0x7f;
+	hdmi_writeb(hdmi, val, HDMI_FC_AVIVID);
+
+	/* AVI Data Byte 5- set up input and output pixel repetition */
+	val = (((hdmi->hdmi_data.video_mode.mpixelrepetitioninput + 1) <<
+		HDMI_FC_PRCONF_INCOMING_PR_FACTOR_OFFSET) &
+		HDMI_FC_PRCONF_INCOMING_PR_FACTOR_MASK) |
+		((hdmi->hdmi_data.video_mode.mpixelrepetitionoutput <<
+		HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_OFFSET) &
+		HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_MASK);
+	hdmi_writeb(hdmi, val, HDMI_FC_PRCONF);
+
+	/*
+	 * AVI data byte 5 differences: content type in 0,1 rather than 4,5,
+	 * ycc range in bits 2,3 rather than 6,7
+	 */
+	val = ((frame.ycc_quantization_range & 0x3) << 2) |
+	      (frame.content_type & 0x3);
+	hdmi_writeb(hdmi, val, HDMI_FC_AVICONF3);
+
+	/* AVI Data Bytes 6-13 */
+	hdmi_writeb(hdmi, frame.top_bar & 0xff, HDMI_FC_AVIETB0);
+	hdmi_writeb(hdmi, (frame.top_bar >> 8) & 0xff, HDMI_FC_AVIETB1);
+	hdmi_writeb(hdmi, frame.bottom_bar & 0xff, HDMI_FC_AVISBB0);
+	hdmi_writeb(hdmi, (frame.bottom_bar >> 8) & 0xff, HDMI_FC_AVISBB1);
+	hdmi_writeb(hdmi, frame.left_bar & 0xff, HDMI_FC_AVIELB0);
+	hdmi_writeb(hdmi, (frame.left_bar >> 8) & 0xff, HDMI_FC_AVIELB1);
+	hdmi_writeb(hdmi, frame.right_bar & 0xff, HDMI_FC_AVISRB0);
+	hdmi_writeb(hdmi, (frame.right_bar >> 8) & 0xff, HDMI_FC_AVISRB1);
+}
+
+static void hdmi_config_vendor_specific_infoframe(struct dw_hdmi *hdmi,
+						  const struct drm_connector *connector,
+						  const struct drm_display_mode *mode)
+{
+	struct hdmi_vendor_infoframe frame;
+	u8 buffer[10];
+	ssize_t err;
+
+	err = drm_hdmi_vendor_infoframe_from_display_mode(&frame, connector,
+							  mode);
+	if (err < 0)
+		/*
+		 * Going into that statement does not means vendor infoframe
+		 * fails. It just informed us that vendor infoframe is not
+		 * needed for the selected mode. Only 4k or stereoscopic 3D
+		 * mode requires vendor infoframe. So just simply return.
+		 */
+		return;
+
+	err = hdmi_vendor_infoframe_pack(&frame, buffer, sizeof(buffer));
+	if (err < 0) {
+		dev_err(hdmi->dev, "Failed to pack vendor infoframe: %zd\n",
+			err);
+		return;
+	}
+	hdmi_mask_writeb(hdmi, 0, HDMI_FC_DATAUTO0, HDMI_FC_DATAUTO0_VSD_OFFSET,
+			HDMI_FC_DATAUTO0_VSD_MASK);
+
+	/* Set the length of HDMI vendor specific InfoFrame payload */
+	hdmi_writeb(hdmi, buffer[2], HDMI_FC_VSDSIZE);
+
+	/* Set 24bit IEEE Registration Identifier */
+	hdmi_writeb(hdmi, buffer[4], HDMI_FC_VSDIEEEID0);
+	hdmi_writeb(hdmi, buffer[5], HDMI_FC_VSDIEEEID1);
+	hdmi_writeb(hdmi, buffer[6], HDMI_FC_VSDIEEEID2);
+
+	/* Set HDMI_Video_Format and HDMI_VIC/3D_Structure */
+	hdmi_writeb(hdmi, buffer[7], HDMI_FC_VSDPAYLOAD0);
+	hdmi_writeb(hdmi, buffer[8], HDMI_FC_VSDPAYLOAD1);
+
+	if (frame.s3d_struct >= HDMI_3D_STRUCTURE_SIDE_BY_SIDE_HALF)
+		hdmi_writeb(hdmi, buffer[9], HDMI_FC_VSDPAYLOAD2);
+
+	/* Packet frame interpolation */
+	hdmi_writeb(hdmi, 1, HDMI_FC_DATAUTO1);
+
+	/* Auto packets per frame and line spacing */
+	hdmi_writeb(hdmi, 0x11, HDMI_FC_DATAUTO2);
+
+	/* Configures the Frame Composer On RDRB mode */
+	hdmi_mask_writeb(hdmi, 1, HDMI_FC_DATAUTO0, HDMI_FC_DATAUTO0_VSD_OFFSET,
+			HDMI_FC_DATAUTO0_VSD_MASK);
+}
+
+static void hdmi_config_drm_infoframe(struct dw_hdmi *hdmi,
+				      const struct drm_connector *connector)
+{
+	const struct drm_connector_state *conn_state = connector->state;
+	struct hdmi_drm_infoframe frame;
+	u8 buffer[30];
+	ssize_t err;
+	int i;
+
+	if (!hdmi->plat_data->use_drm_infoframe)
+		return;
+
+	hdmi_modb(hdmi, HDMI_FC_PACKET_TX_EN_DRM_DISABLE,
+		  HDMI_FC_PACKET_TX_EN_DRM_MASK, HDMI_FC_PACKET_TX_EN);
+
+	err = drm_hdmi_infoframe_set_hdr_metadata(&frame, conn_state);
+	if (err < 0)
+		return;
+
+	err = hdmi_drm_infoframe_pack(&frame, buffer, sizeof(buffer));
+	if (err < 0) {
+		dev_err(hdmi->dev, "Failed to pack drm infoframe: %zd\n", err);
+		return;
+	}
+
+	hdmi_writeb(hdmi, frame.version, HDMI_FC_DRM_HB0);
+	hdmi_writeb(hdmi, frame.length, HDMI_FC_DRM_HB1);
+
+	for (i = 0; i < frame.length; i++)
+		hdmi_writeb(hdmi, buffer[4 + i], HDMI_FC_DRM_PB0 + i);
+
+	hdmi_writeb(hdmi, 1, HDMI_FC_DRM_UP);
+	hdmi_modb(hdmi, HDMI_FC_PACKET_TX_EN_DRM_ENABLE,
+		  HDMI_FC_PACKET_TX_EN_DRM_MASK, HDMI_FC_PACKET_TX_EN);
+}
+
+static void hdmi_av_composer(struct dw_hdmi *hdmi,
+			     const struct drm_display_info *display,
+			     const struct drm_display_mode *mode)
+{
+	u8 inv_val, bytes;
+	const struct drm_hdmi_info *hdmi_info = &display->hdmi;
+	struct hdmi_vmode *vmode = &hdmi->hdmi_data.video_mode;
+	int hblank, vblank, h_de_hs, v_de_vs, hsync_len, vsync_len;
+	unsigned int vdisplay, hdisplay;
+
+	vmode->mpixelclock = mode->clock * 1000;
+
+	dev_dbg(hdmi->dev, "final pixclk = %d\n", vmode->mpixelclock);
+
+	vmode->mtmdsclock = vmode->mpixelclock;
+
+	if (!hdmi_bus_fmt_is_yuv422(hdmi->hdmi_data.enc_out_bus_format)) {
+		switch (hdmi_bus_fmt_color_depth(
+				hdmi->hdmi_data.enc_out_bus_format)) {
+		case 16:
+			vmode->mtmdsclock = vmode->mpixelclock * 2;
+			break;
+		case 12:
+			vmode->mtmdsclock = vmode->mpixelclock * 3 / 2;
+			break;
+		case 10:
+			vmode->mtmdsclock = vmode->mpixelclock * 5 / 4;
+			break;
+		}
+	}
+
+	if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format))
+		vmode->mtmdsclock /= 2;
+
+	dev_dbg(hdmi->dev, "final tmdsclock = %d\n", vmode->mtmdsclock);
+
+	/* Set up HDMI_FC_INVIDCONF */
+	inv_val = (hdmi->hdmi_data.hdcp_enable ||
+		   (dw_hdmi_support_scdc(hdmi, display) &&
+		    (vmode->mtmdsclock > HDMI14_MAX_TMDSCLK ||
+		     hdmi_info->scdc.scrambling.low_rates)) ?
+		HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE :
+		HDMI_FC_INVIDCONF_HDCP_KEEPOUT_INACTIVE);
+
+	inv_val |= mode->flags & DRM_MODE_FLAG_PVSYNC ?
+		HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_HIGH :
+		HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_LOW;
+
+	inv_val |= mode->flags & DRM_MODE_FLAG_PHSYNC ?
+		HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_HIGH :
+		HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_LOW;
+
+	inv_val |= (vmode->mdataenablepolarity ?
+		HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH :
+		HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_LOW);
+
+	if (hdmi->vic == 39)
+		inv_val |= HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH;
+	else
+		inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ?
+			HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH :
+			HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW;
+
+	inv_val |= mode->flags & DRM_MODE_FLAG_INTERLACE ?
+		HDMI_FC_INVIDCONF_IN_I_P_INTERLACED :
+		HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE;
+
+	inv_val |= hdmi->sink_is_hdmi ?
+		HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE :
+		HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE;
+
+	hdmi_writeb(hdmi, inv_val, HDMI_FC_INVIDCONF);
+
+	hdisplay = mode->hdisplay;
+	hblank = mode->htotal - mode->hdisplay;
+	h_de_hs = mode->hsync_start - mode->hdisplay;
+	hsync_len = mode->hsync_end - mode->hsync_start;
+
+	/*
+	 * When we're setting a YCbCr420 mode, we need
+	 * to adjust the horizontal timing to suit.
+	 */
+	if (hdmi_bus_fmt_is_yuv420(hdmi->hdmi_data.enc_out_bus_format)) {
+		hdisplay /= 2;
+		hblank /= 2;
+		h_de_hs /= 2;
+		hsync_len /= 2;
+	}
+
+	vdisplay = mode->vdisplay;
+	vblank = mode->vtotal - mode->vdisplay;
+	v_de_vs = mode->vsync_start - mode->vdisplay;
+	vsync_len = mode->vsync_end - mode->vsync_start;
+
+	/*
+	 * When we're setting an interlaced mode, we need
+	 * to adjust the vertical timing to suit.
+	 */
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
+		vdisplay /= 2;
+		vblank /= 2;
+		v_de_vs /= 2;
+		vsync_len /= 2;
+	}
+
+	/* Scrambling Control */
+	if (dw_hdmi_support_scdc(hdmi, display)) {
+		if (vmode->mtmdsclock > HDMI14_MAX_TMDSCLK ||
+		    hdmi_info->scdc.scrambling.low_rates) {
+			/*
+			 * HDMI2.0 Specifies the following procedure:
+			 * After the Source Device has determined that
+			 * SCDC_Present is set (=1), the Source Device should
+			 * write the accurate Version of the Source Device
+			 * to the Source Version field in the SCDCS.
+			 * Source Devices compliant shall set the
+			 * Source Version = 1.
+			 */
+			drm_scdc_readb(hdmi->ddc, SCDC_SINK_VERSION,
+				       &bytes);
+			drm_scdc_writeb(hdmi->ddc, SCDC_SOURCE_VERSION,
+				min_t(u8, bytes, SCDC_MIN_SOURCE_VERSION));
+
+			/* Enabled Scrambling in the Sink */
+			drm_scdc_set_scrambling(hdmi->ddc, 1);
+
+			/*
+			 * To activate the scrambler feature, you must ensure
+			 * that the quasi-static configuration bit
+			 * fc_invidconf.HDCP_keepout is set at configuration
+			 * time, before the required mc_swrstzreq.tmdsswrst_req
+			 * reset request is issued.
+			 */
+			hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ,
+				    HDMI_MC_SWRSTZ);
+			hdmi_writeb(hdmi, 1, HDMI_FC_SCRAMBLER_CTRL);
+		} else {
+			hdmi_writeb(hdmi, 0, HDMI_FC_SCRAMBLER_CTRL);
+			hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ,
+				    HDMI_MC_SWRSTZ);
+			drm_scdc_set_scrambling(hdmi->ddc, 0);
+		}
+	}
+
+	/* Set up horizontal active pixel width */
+	hdmi_writeb(hdmi, hdisplay >> 8, HDMI_FC_INHACTV1);
+	hdmi_writeb(hdmi, hdisplay, HDMI_FC_INHACTV0);
+
+	/* Set up vertical active lines */
+	hdmi_writeb(hdmi, vdisplay >> 8, HDMI_FC_INVACTV1);
+	hdmi_writeb(hdmi, vdisplay, HDMI_FC_INVACTV0);
+
+	/* Set up horizontal blanking pixel region width */
+	hdmi_writeb(hdmi, hblank >> 8, HDMI_FC_INHBLANK1);
+	hdmi_writeb(hdmi, hblank, HDMI_FC_INHBLANK0);
+
+	/* Set up vertical blanking pixel region width */
+	hdmi_writeb(hdmi, vblank, HDMI_FC_INVBLANK);
+
+	/* Set up HSYNC active edge delay width (in pixel clks) */
+	hdmi_writeb(hdmi, h_de_hs >> 8, HDMI_FC_HSYNCINDELAY1);
+	hdmi_writeb(hdmi, h_de_hs, HDMI_FC_HSYNCINDELAY0);
+
+	/* Set up VSYNC active edge delay (in lines) */
+	hdmi_writeb(hdmi, v_de_vs, HDMI_FC_VSYNCINDELAY);
+
+	/* Set up HSYNC active pulse width (in pixel clks) */
+	hdmi_writeb(hdmi, hsync_len >> 8, HDMI_FC_HSYNCINWIDTH1);
+	hdmi_writeb(hdmi, hsync_len, HDMI_FC_HSYNCINWIDTH0);
+
+	/* Set up VSYNC active edge delay (in lines) */
+	hdmi_writeb(hdmi, vsync_len, HDMI_FC_VSYNCINWIDTH);
+}
+
+/* HDMI Initialization Step B.4 */
+static void dw_hdmi_enable_video_path(struct dw_hdmi *hdmi)
+{
+	/* control period minimum duration */
+	hdmi_writeb(hdmi, 12, HDMI_FC_CTRLDUR);
+	hdmi_writeb(hdmi, 32, HDMI_FC_EXCTRLDUR);
+	hdmi_writeb(hdmi, 1, HDMI_FC_EXCTRLSPAC);
+
+	/* Set to fill TMDS data channels */
+	hdmi_writeb(hdmi, 0x0B, HDMI_FC_CH0PREAM);
+	hdmi_writeb(hdmi, 0x16, HDMI_FC_CH1PREAM);
+	hdmi_writeb(hdmi, 0x21, HDMI_FC_CH2PREAM);
+
+	/* Enable pixel clock and tmds data path */
+	hdmi->mc_clkdis |= HDMI_MC_CLKDIS_HDCPCLK_DISABLE |
+			   HDMI_MC_CLKDIS_CSCCLK_DISABLE |
+			   HDMI_MC_CLKDIS_AUDCLK_DISABLE |
+			   HDMI_MC_CLKDIS_PREPCLK_DISABLE |
+			   HDMI_MC_CLKDIS_TMDSCLK_DISABLE;
+	hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_PIXELCLK_DISABLE;
+	hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS);
+
+	hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_TMDSCLK_DISABLE;
+	hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS);
+
+	/* Enable csc path */
+	if (is_csc_needed(hdmi)) {
+		hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_CSCCLK_DISABLE;
+		hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS);
+
+		hdmi_writeb(hdmi, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH,
+			    HDMI_MC_FLOWCTRL);
+	} else {
+		hdmi->mc_clkdis |= HDMI_MC_CLKDIS_CSCCLK_DISABLE;
+		hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS);
+
+		hdmi_writeb(hdmi, HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS,
+			    HDMI_MC_FLOWCTRL);
+	}
+}
+
+/* Workaround to clear the overflow condition */
+static void dw_hdmi_clear_overflow(struct dw_hdmi *hdmi)
+{
+	unsigned int count;
+	unsigned int i;
+	u8 val;
+
+	/*
+	 * Under some circumstances the Frame Composer arithmetic unit can miss
+	 * an FC register write due to being busy processing the previous one.
+	 * The issue can be worked around by issuing a TMDS software reset and
+	 * then write one of the FC registers several times.
+	 *
+	 * The number of iterations matters and depends on the HDMI TX revision
+	 * (and possibly on the platform).
+	 * 4 iterations for i.MX6Q(v1.30a) and 1 iteration for others.
+	 * i.MX6DL (v1.31a), Allwinner SoCs (v1.32a), Rockchip RK3288 SoC (v2.00a),
+	 * Amlogic Meson GX SoCs (v2.01a), RK3328/RK3399 SoCs (v2.11a)
+	 * and i.MX8MPlus (v2.13a) have been identified as needing the workaround
+	 * with a single iteration.
+	 */
+
+	switch (hdmi->version) {
+	case 0x130a:
+		count = 4;
+		break;
+	default:
+		count = 1;
+		break;
+	}
+
+	/* TMDS software reset */
+	hdmi_writeb(hdmi, (u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, HDMI_MC_SWRSTZ);
+
+	val = hdmi_readb(hdmi, HDMI_FC_INVIDCONF);
+	for (i = 0; i < count; i++)
+		hdmi_writeb(hdmi, val, HDMI_FC_INVIDCONF);
+}
+
+static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi)
+{
+	hdmi_writeb(hdmi, HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK,
+		    HDMI_IH_MUTE_FC_STAT2);
+}
+
+static int dw_hdmi_setup(struct dw_hdmi *hdmi,
+			 const struct drm_connector *connector,
+			 const struct drm_display_mode *mode)
+{
+	int ret;
+
+	hdmi_disable_overflow_interrupts(hdmi);
+
+	hdmi->vic = drm_match_cea_mode(mode);
+
+	if (!hdmi->vic) {
+		dev_dbg(hdmi->dev, "Non-CEA mode used in HDMI\n");
+	} else {
+		dev_dbg(hdmi->dev, "CEA mode used vic=%d\n", hdmi->vic);
+	}
+
+	if ((hdmi->vic == 6) || (hdmi->vic == 7) ||
+	    (hdmi->vic == 21) || (hdmi->vic == 22) ||
+	    (hdmi->vic == 2) || (hdmi->vic == 3) ||
+	    (hdmi->vic == 17) || (hdmi->vic == 18))
+		hdmi->hdmi_data.enc_out_encoding = V4L2_YCBCR_ENC_601;
+	else
+		hdmi->hdmi_data.enc_out_encoding = V4L2_YCBCR_ENC_709;
+
+	hdmi->hdmi_data.video_mode.mpixelrepetitionoutput = 0;
+	hdmi->hdmi_data.video_mode.mpixelrepetitioninput = 0;
+
+	if (hdmi->hdmi_data.enc_in_bus_format == MEDIA_BUS_FMT_FIXED)
+		hdmi->hdmi_data.enc_in_bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+
+	/* TOFIX: Get input encoding from plat data or fallback to none */
+	if (hdmi->plat_data->input_bus_encoding)
+		hdmi->hdmi_data.enc_in_encoding =
+			hdmi->plat_data->input_bus_encoding;
+	else
+		hdmi->hdmi_data.enc_in_encoding = V4L2_YCBCR_ENC_DEFAULT;
+
+	if (hdmi->hdmi_data.enc_out_bus_format == MEDIA_BUS_FMT_FIXED)
+		hdmi->hdmi_data.enc_out_bus_format = MEDIA_BUS_FMT_RGB888_1X24;
+
+	hdmi->hdmi_data.rgb_limited_range = hdmi->sink_is_hdmi &&
+		drm_default_rgb_quant_range(mode) ==
+		HDMI_QUANTIZATION_RANGE_LIMITED;
+
+	hdmi->hdmi_data.pix_repet_factor = 0;
+	hdmi->hdmi_data.hdcp_enable = 0;
+	hdmi->hdmi_data.video_mode.mdataenablepolarity = true;
+
+	/* HDMI Initialization Step B.1 */
+	hdmi_av_composer(hdmi, &connector->display_info, mode);
+
+	/* HDMI Initializateion Step B.2 */
+	ret = hdmi->phy.ops->init(hdmi, hdmi->phy.data,
+				  &connector->display_info,
+				  &hdmi->previous_mode);
+	if (ret)
+		return ret;
+	hdmi->phy.enabled = true;
+
+	/* HDMI Initialization Step B.3 */
+	dw_hdmi_enable_video_path(hdmi);
+
+	if (hdmi->sink_has_audio) {
+		dev_dbg(hdmi->dev, "sink has audio support\n");
+
+		/* HDMI Initialization Step E - Configure audio */
+		hdmi_clk_regenerator_update_pixel_clock(hdmi);
+		hdmi_enable_audio_clk(hdmi, hdmi->audio_enable);
+	}
+
+	/* not for DVI mode */
+	if (hdmi->sink_is_hdmi) {
+		dev_dbg(hdmi->dev, "%s HDMI mode\n", __func__);
+
+		/* HDMI Initialization Step F - Configure AVI InfoFrame */
+		hdmi_config_AVI(hdmi, connector, mode);
+		hdmi_config_vendor_specific_infoframe(hdmi, connector, mode);
+		hdmi_config_drm_infoframe(hdmi, connector);
+	} else {
+		dev_dbg(hdmi->dev, "%s DVI mode\n", __func__);
+	}
+
+	hdmi_video_packetize(hdmi);
+	hdmi_video_csc(hdmi);
+	hdmi_video_sample(hdmi);
+	hdmi_tx_hdcp_config(hdmi);
+
+	dw_hdmi_clear_overflow(hdmi);
+
+	return 0;
+}
+
+static void initialize_hdmi_ih_mutes(struct dw_hdmi *hdmi)
+{
+	u8 ih_mute;
+
+	/*
+	 * Boot up defaults are:
+	 * HDMI_IH_MUTE   = 0x03 (disabled)
+	 * HDMI_IH_MUTE_* = 0x00 (enabled)
+	 *
+	 * Disable top level interrupt bits in HDMI block
+	 */
+	ih_mute = hdmi_readb(hdmi, HDMI_IH_MUTE) |
+		  HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
+		  HDMI_IH_MUTE_MUTE_ALL_INTERRUPT;
+
+	hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE);
+
+	/* by default mask all interrupts */
+	hdmi_writeb(hdmi, 0xff, HDMI_VP_MASK);
+	hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK0);
+	hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK1);
+	hdmi_writeb(hdmi, 0xff, HDMI_FC_MASK2);
+	hdmi_writeb(hdmi, 0xff, HDMI_PHY_MASK0);
+	hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_INT_ADDR);
+	hdmi_writeb(hdmi, 0xff, HDMI_PHY_I2CM_CTLINT_ADDR);
+	hdmi_writeb(hdmi, 0xff, HDMI_AUD_INT);
+	hdmi_writeb(hdmi, 0xff, HDMI_AUD_SPDIFINT);
+	hdmi_writeb(hdmi, 0xff, HDMI_AUD_HBR_MASK);
+	hdmi_writeb(hdmi, 0xff, HDMI_GP_MASK);
+	hdmi_writeb(hdmi, 0xff, HDMI_A_APIINTMSK);
+	hdmi_writeb(hdmi, 0xff, HDMI_I2CM_INT);
+	hdmi_writeb(hdmi, 0xff, HDMI_I2CM_CTLINT);
+
+	/* Disable interrupts in the IH_MUTE_* registers */
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT0);
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT1);
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_FC_STAT2);
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AS_STAT0);
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_PHY_STAT0);
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CM_STAT0);
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_CEC_STAT0);
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_VP_STAT0);
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_I2CMPHY_STAT0);
+	hdmi_writeb(hdmi, 0xff, HDMI_IH_MUTE_AHBDMAAUD_STAT0);
+
+	/* Enable top level interrupt bits in HDMI block */
+	ih_mute &= ~(HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT |
+		    HDMI_IH_MUTE_MUTE_ALL_INTERRUPT);
+	hdmi_writeb(hdmi, ih_mute, HDMI_IH_MUTE);
+}
+
+static void dw_hdmi_poweron(struct dw_hdmi *hdmi)
+{
+	hdmi->bridge_is_on = true;
+
+	/*
+	 * The curr_conn field is guaranteed to be valid here, as this function
+	 * is only be called when !hdmi->disabled.
+	 */
+	dw_hdmi_setup(hdmi, hdmi->curr_conn, &hdmi->previous_mode);
+}
+
+static void dw_hdmi_poweroff(struct dw_hdmi *hdmi)
+{
+	if (hdmi->phy.enabled) {
+		hdmi->phy.ops->disable(hdmi, hdmi->phy.data);
+		hdmi->phy.enabled = false;
+	}
+
+	hdmi->bridge_is_on = false;
+}
+
+static void dw_hdmi_update_power(struct dw_hdmi *hdmi)
+{
+	int force = hdmi->force;
+
+	if (hdmi->disabled) {
+		force = DRM_FORCE_OFF;
+	} else if (force == DRM_FORCE_UNSPECIFIED) {
+		if (hdmi->rxsense)
+			force = DRM_FORCE_ON;
+		else
+			force = DRM_FORCE_OFF;
+	}
+
+	if (force == DRM_FORCE_OFF) {
+		if (hdmi->bridge_is_on)
+			dw_hdmi_poweroff(hdmi);
+	} else {
+		if (!hdmi->bridge_is_on)
+			dw_hdmi_poweron(hdmi);
+	}
+}
+
+/*
+ * Adjust the detection of RXSENSE according to whether we have a forced
+ * connection mode enabled, or whether we have been disabled.  There is
+ * no point processing RXSENSE interrupts if we have a forced connection
+ * state, or DRM has us disabled.
+ *
+ * We also disable rxsense interrupts when we think we're disconnected
+ * to avoid floating TDMS signals giving false rxsense interrupts.
+ *
+ * Note: we still need to listen for HPD interrupts even when DRM has us
+ * disabled so that we can detect a connect event.
+ */
+static void dw_hdmi_update_phy_mask(struct dw_hdmi *hdmi)
+{
+	if (hdmi->phy.ops->update_hpd)
+		hdmi->phy.ops->update_hpd(hdmi, hdmi->phy.data,
+					  hdmi->force, hdmi->disabled,
+					  hdmi->rxsense);
+}
+
+static enum drm_connector_status dw_hdmi_detect(struct dw_hdmi *hdmi)
+{
+	enum drm_connector_status result;
+
+	result = hdmi->phy.ops->read_hpd(hdmi, hdmi->phy.data);
+
+	mutex_lock(&hdmi->mutex);
+	if (result != hdmi->last_connector_result) {
+		dev_dbg(hdmi->dev, "read_hpd result: %d", result);
+		handle_plugged_change(hdmi,
+				      result == connector_status_connected);
+		hdmi->last_connector_result = result;
+	}
+	mutex_unlock(&hdmi->mutex);
+
+	return result;
+}
+
+static struct edid *dw_hdmi_get_edid(struct dw_hdmi *hdmi,
+				     struct drm_connector *connector)
+{
+	struct edid *edid;
+
+	if (!hdmi->ddc)
+		return NULL;
+
+	edid = drm_get_edid(connector, hdmi->ddc);
+	if (!edid) {
+		dev_dbg(hdmi->dev, "failed to get edid\n");
+		return NULL;
+	}
+
+	dev_dbg(hdmi->dev, "got edid: width[%d] x height[%d]\n",
+		edid->width_cm, edid->height_cm);
+
+	hdmi->sink_is_hdmi = drm_detect_hdmi_monitor(edid);
+	hdmi->sink_has_audio = drm_detect_monitor_audio(edid);
+
+	return edid;
+}
+
+/* -----------------------------------------------------------------------------
+ * DRM Connector Operations
+ */
+
+static enum drm_connector_status
+dw_hdmi_connector_detect(struct drm_connector *connector, bool force)
+{
+	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
+					     connector);
+	return dw_hdmi_detect(hdmi);
+}
+
+static int dw_hdmi_connector_get_modes(struct drm_connector *connector)
+{
+	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
+					     connector);
+	struct edid *edid;
+	int ret;
+
+	edid = dw_hdmi_get_edid(hdmi, connector);
+	if (!edid)
+		return 0;
+
+	drm_connector_update_edid_property(connector, edid);
+	cec_notifier_set_phys_addr_from_edid(hdmi->cec_notifier, edid);
+	ret = drm_add_edid_modes(connector, edid);
+	kfree(edid);
+
+	return ret;
+}
+
+static int dw_hdmi_connector_atomic_check(struct drm_connector *connector,
+					  struct drm_atomic_state *state)
+{
+	struct drm_connector_state *old_state =
+		drm_atomic_get_old_connector_state(state, connector);
+	struct drm_connector_state *new_state =
+		drm_atomic_get_new_connector_state(state, connector);
+	struct drm_crtc *crtc = new_state->crtc;
+	struct drm_crtc_state *crtc_state;
+
+	if (!crtc)
+		return 0;
+
+	if (!drm_connector_atomic_hdr_metadata_equal(old_state, new_state)) {
+		crtc_state = drm_atomic_get_crtc_state(state, crtc);
+		if (IS_ERR(crtc_state))
+			return PTR_ERR(crtc_state);
+
+		crtc_state->mode_changed = true;
+	}
+
+	return 0;
+}
+
+static void dw_hdmi_connector_force(struct drm_connector *connector)
+{
+	struct dw_hdmi *hdmi = container_of(connector, struct dw_hdmi,
+					     connector);
+
+	mutex_lock(&hdmi->mutex);
+	hdmi->force = connector->force;
+	dw_hdmi_update_power(hdmi);
+	dw_hdmi_update_phy_mask(hdmi);
+	mutex_unlock(&hdmi->mutex);
+}
+
+static const struct drm_connector_funcs dw_hdmi_connector_funcs = {
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.detect = dw_hdmi_connector_detect,
+	.destroy = drm_connector_cleanup,
+	.force = dw_hdmi_connector_force,
+	.reset = drm_atomic_helper_connector_reset,
+	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
+};
+
+static const struct drm_connector_helper_funcs dw_hdmi_connector_helper_funcs = {
+	.get_modes = dw_hdmi_connector_get_modes,
+	.atomic_check = dw_hdmi_connector_atomic_check,
+};
+
+static int dw_hdmi_connector_create(struct dw_hdmi *hdmi)
+{
+	struct drm_connector *connector = &hdmi->connector;
+	struct cec_connector_info conn_info;
+	struct cec_notifier *notifier;
+
+	if (hdmi->version >= 0x200a)
+		connector->ycbcr_420_allowed =
+			hdmi->plat_data->ycbcr_420_allowed;
+	else
+		connector->ycbcr_420_allowed = false;
+
+	connector->interlace_allowed = 1;
+	connector->polled = DRM_CONNECTOR_POLL_HPD;
+
+	drm_connector_helper_add(connector, &dw_hdmi_connector_helper_funcs);
+
+	drm_connector_init_with_ddc(hdmi->bridge.dev, connector,
+				    &dw_hdmi_connector_funcs,
+				    DRM_MODE_CONNECTOR_HDMIA,
+				    hdmi->ddc);
+
+	/*
+	 * drm_connector_attach_max_bpc_property() requires the
+	 * connector to have a state.
+	 */
+	drm_atomic_helper_connector_reset(connector);
+
+	drm_connector_attach_max_bpc_property(connector, 8, 16);
+
+	if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
+		drm_connector_attach_hdr_output_metadata_property(connector);
+
+	drm_connector_attach_encoder(connector, hdmi->bridge.encoder);
+
+	cec_fill_conn_info_from_drm(&conn_info, connector);
+
+	notifier = cec_notifier_conn_register(hdmi->dev, NULL, &conn_info);
+	if (!notifier)
+		return -ENOMEM;
+
+	mutex_lock(&hdmi->cec_notifier_mutex);
+	hdmi->cec_notifier = notifier;
+	mutex_unlock(&hdmi->cec_notifier_mutex);
+
+	return 0;
+}
+
+/* -----------------------------------------------------------------------------
+ * DRM Bridge Operations
+ */
+
+/*
+ * Possible output formats :
+ * - MEDIA_BUS_FMT_UYYVYY16_0_5X48,
+ * - MEDIA_BUS_FMT_UYYVYY12_0_5X36,
+ * - MEDIA_BUS_FMT_UYYVYY10_0_5X30,
+ * - MEDIA_BUS_FMT_UYYVYY8_0_5X24,
+ * - MEDIA_BUS_FMT_YUV16_1X48,
+ * - MEDIA_BUS_FMT_RGB161616_1X48,
+ * - MEDIA_BUS_FMT_UYVY12_1X24,
+ * - MEDIA_BUS_FMT_YUV12_1X36,
+ * - MEDIA_BUS_FMT_RGB121212_1X36,
+ * - MEDIA_BUS_FMT_UYVY10_1X20,
+ * - MEDIA_BUS_FMT_YUV10_1X30,
+ * - MEDIA_BUS_FMT_RGB101010_1X30,
+ * - MEDIA_BUS_FMT_UYVY8_1X16,
+ * - MEDIA_BUS_FMT_YUV8_1X24,
+ * - MEDIA_BUS_FMT_RGB888_1X24,
+ */
+
+/* Can return a maximum of 11 possible output formats for a mode/connector */
+#define MAX_OUTPUT_SEL_FORMATS	11
+
+static u32 *dw_hdmi_bridge_atomic_get_output_bus_fmts(struct drm_bridge *bridge,
+					struct drm_bridge_state *bridge_state,
+					struct drm_crtc_state *crtc_state,
+					struct drm_connector_state *conn_state,
+					unsigned int *num_output_fmts)
+{
+	struct drm_connector *conn = conn_state->connector;
+	struct drm_display_info *info = &conn->display_info;
+	struct drm_display_mode *mode = &crtc_state->mode;
+	u8 max_bpc = conn_state->max_requested_bpc;
+	bool is_hdmi2_sink = info->hdmi.scdc.supported ||
+			     (info->color_formats & DRM_COLOR_FORMAT_YCBCR420);
+	u32 *output_fmts;
+	unsigned int i = 0;
+
+	*num_output_fmts = 0;
+
+	output_fmts = kcalloc(MAX_OUTPUT_SEL_FORMATS, sizeof(*output_fmts),
+			      GFP_KERNEL);
+	if (!output_fmts)
+		return NULL;
+
+	/* If dw-hdmi is the first or only bridge, avoid negociating with ourselves */
+	if (list_is_singular(&bridge->encoder->bridge_chain) ||
+	    list_is_first(&bridge->chain_node, &bridge->encoder->bridge_chain)) {
+		*num_output_fmts = 1;
+		output_fmts[0] = MEDIA_BUS_FMT_FIXED;
+
+		return output_fmts;
+	}
+
+	/*
+	 * If the current mode enforces 4:2:0, force the output but format
+	 * to 4:2:0 and do not add the YUV422/444/RGB formats
+	 */
+	if (conn->ycbcr_420_allowed &&
+	    (drm_mode_is_420_only(info, mode) ||
+	     (is_hdmi2_sink && drm_mode_is_420_also(info, mode)))) {
+
+		/* Order bus formats from 16bit to 8bit if supported */
+		if (max_bpc >= 16 && info->bpc == 16 &&
+		    (info->hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_48))
+			output_fmts[i++] = MEDIA_BUS_FMT_UYYVYY16_0_5X48;
+
+		if (max_bpc >= 12 && info->bpc >= 12 &&
+		    (info->hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_36))
+			output_fmts[i++] = MEDIA_BUS_FMT_UYYVYY12_0_5X36;
+
+		if (max_bpc >= 10 && info->bpc >= 10 &&
+		    (info->hdmi.y420_dc_modes & DRM_EDID_YCBCR420_DC_30))
+			output_fmts[i++] = MEDIA_BUS_FMT_UYYVYY10_0_5X30;
+
+		/* Default 8bit fallback */
+		output_fmts[i++] = MEDIA_BUS_FMT_UYYVYY8_0_5X24;
+
+		*num_output_fmts = i;
+
+		return output_fmts;
+	}
+
+	/*
+	 * Order bus formats from 16bit to 8bit and from YUV422 to RGB
+	 * if supported. In any case the default RGB888 format is added
+	 */
+
+	/* Default 8bit RGB fallback */
+	output_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+
+	if (max_bpc >= 16 && info->bpc == 16) {
+		if (info->color_formats & DRM_COLOR_FORMAT_YCBCR444)
+			output_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48;
+
+		output_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48;
+	}
+
+	if (max_bpc >= 12 && info->bpc >= 12) {
+		if (info->color_formats & DRM_COLOR_FORMAT_YCBCR422)
+			output_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24;
+
+		if (info->color_formats & DRM_COLOR_FORMAT_YCBCR444)
+			output_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36;
+
+		output_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36;
+	}
+
+	if (max_bpc >= 10 && info->bpc >= 10) {
+		if (info->color_formats & DRM_COLOR_FORMAT_YCBCR422)
+			output_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20;
+
+		if (info->color_formats & DRM_COLOR_FORMAT_YCBCR444)
+			output_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30;
+
+		output_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
+	}
+
+	if (info->color_formats & DRM_COLOR_FORMAT_YCBCR422)
+		output_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
+
+	if (info->color_formats & DRM_COLOR_FORMAT_YCBCR444)
+		output_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
+
+	*num_output_fmts = i;
+
+	return output_fmts;
+}
+
+/*
+ * Possible input formats :
+ * - MEDIA_BUS_FMT_RGB888_1X24
+ * - MEDIA_BUS_FMT_YUV8_1X24
+ * - MEDIA_BUS_FMT_UYVY8_1X16
+ * - MEDIA_BUS_FMT_UYYVYY8_0_5X24
+ * - MEDIA_BUS_FMT_RGB101010_1X30
+ * - MEDIA_BUS_FMT_YUV10_1X30
+ * - MEDIA_BUS_FMT_UYVY10_1X20
+ * - MEDIA_BUS_FMT_UYYVYY10_0_5X30
+ * - MEDIA_BUS_FMT_RGB121212_1X36
+ * - MEDIA_BUS_FMT_YUV12_1X36
+ * - MEDIA_BUS_FMT_UYVY12_1X24
+ * - MEDIA_BUS_FMT_UYYVYY12_0_5X36
+ * - MEDIA_BUS_FMT_RGB161616_1X48
+ * - MEDIA_BUS_FMT_YUV16_1X48
+ * - MEDIA_BUS_FMT_UYYVYY16_0_5X48
+ */
+
+/* Can return a maximum of 3 possible input formats for an output format */
+#define MAX_INPUT_SEL_FORMATS	3
+
+static u32 *dw_hdmi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge,
+					struct drm_bridge_state *bridge_state,
+					struct drm_crtc_state *crtc_state,
+					struct drm_connector_state *conn_state,
+					u32 output_fmt,
+					unsigned int *num_input_fmts)
+{
+	u32 *input_fmts;
+	unsigned int i = 0;
+
+	*num_input_fmts = 0;
+
+	input_fmts = kcalloc(MAX_INPUT_SEL_FORMATS, sizeof(*input_fmts),
+			     GFP_KERNEL);
+	if (!input_fmts)
+		return NULL;
+
+	switch (output_fmt) {
+	/* If MEDIA_BUS_FMT_FIXED is tested, return default bus format */
+	case MEDIA_BUS_FMT_FIXED:
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+		break;
+	/* 8bit */
+	case MEDIA_BUS_FMT_RGB888_1X24:
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
+		break;
+	case MEDIA_BUS_FMT_YUV8_1X24:
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+		break;
+	case MEDIA_BUS_FMT_UYVY8_1X16:
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY8_1X16;
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV8_1X24;
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB888_1X24;
+		break;
+
+	/* 10bit */
+	case MEDIA_BUS_FMT_RGB101010_1X30:
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30;
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20;
+		break;
+	case MEDIA_BUS_FMT_YUV10_1X30:
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30;
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20;
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
+		break;
+	case MEDIA_BUS_FMT_UYVY10_1X20:
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY10_1X20;
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV10_1X30;
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB101010_1X30;
+		break;
+
+	/* 12bit */
+	case MEDIA_BUS_FMT_RGB121212_1X36:
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36;
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36;
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24;
+		break;
+	case MEDIA_BUS_FMT_YUV12_1X36:
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36;
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24;
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36;
+		break;
+	case MEDIA_BUS_FMT_UYVY12_1X24:
+		input_fmts[i++] = MEDIA_BUS_FMT_UYVY12_1X24;
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV12_1X36;
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB121212_1X36;
+		break;
+
+	/* 16bit */
+	case MEDIA_BUS_FMT_RGB161616_1X48:
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48;
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48;
+		break;
+	case MEDIA_BUS_FMT_YUV16_1X48:
+		input_fmts[i++] = MEDIA_BUS_FMT_YUV16_1X48;
+		input_fmts[i++] = MEDIA_BUS_FMT_RGB161616_1X48;
+		break;
+
+	/*YUV 4:2:0 */
+	case MEDIA_BUS_FMT_UYYVYY8_0_5X24:
+	case MEDIA_BUS_FMT_UYYVYY10_0_5X30:
+	case MEDIA_BUS_FMT_UYYVYY12_0_5X36:
+	case MEDIA_BUS_FMT_UYYVYY16_0_5X48:
+		input_fmts[i++] = output_fmt;
+		break;
+	}
+
+	*num_input_fmts = i;
+
+	if (*num_input_fmts == 0) {
+		kfree(input_fmts);
+		input_fmts = NULL;
+	}
+
+	return input_fmts;
+}
+
+static int dw_hdmi_bridge_atomic_check(struct drm_bridge *bridge,
+				       struct drm_bridge_state *bridge_state,
+				       struct drm_crtc_state *crtc_state,
+				       struct drm_connector_state *conn_state)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	hdmi->hdmi_data.enc_out_bus_format =
+			bridge_state->output_bus_cfg.format;
+
+	hdmi->hdmi_data.enc_in_bus_format =
+			bridge_state->input_bus_cfg.format;
+
+	dev_dbg(hdmi->dev, "input format 0x%04x, output format 0x%04x\n",
+		bridge_state->input_bus_cfg.format,
+		bridge_state->output_bus_cfg.format);
+
+	return 0;
+}
+
+static int dw_hdmi_bridge_attach(struct drm_bridge *bridge,
+				 enum drm_bridge_attach_flags flags)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)
+		return drm_bridge_attach(bridge->encoder, hdmi->next_bridge,
+					 bridge, flags);
+
+	return dw_hdmi_connector_create(hdmi);
+}
+
+static void dw_hdmi_bridge_detach(struct drm_bridge *bridge)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	mutex_lock(&hdmi->cec_notifier_mutex);
+	cec_notifier_conn_unregister(hdmi->cec_notifier);
+	hdmi->cec_notifier = NULL;
+	mutex_unlock(&hdmi->cec_notifier_mutex);
+}
+
+static enum drm_mode_status
+dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
+			  const struct drm_display_info *info,
+			  const struct drm_display_mode *mode)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+	const struct dw_hdmi_plat_data *pdata = hdmi->plat_data;
+	enum drm_mode_status mode_status = MODE_OK;
+
+	/* We don't support double-clocked modes */
+	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
+		return MODE_BAD;
+
+	if (pdata->mode_valid)
+		mode_status = pdata->mode_valid(hdmi, pdata->priv_data, info,
+						mode);
+
+	return mode_status;
+}
+
+static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge,
+				    const struct drm_display_mode *orig_mode,
+				    const struct drm_display_mode *mode)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	mutex_lock(&hdmi->mutex);
+
+	/* Store the display mode for plugin/DKMS poweron events */
+	drm_mode_copy(&hdmi->previous_mode, mode);
+
+	mutex_unlock(&hdmi->mutex);
+}
+
+static void dw_hdmi_bridge_atomic_disable(struct drm_bridge *bridge,
+					  struct drm_bridge_state *old_state)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	mutex_lock(&hdmi->mutex);
+	hdmi->disabled = true;
+	hdmi->curr_conn = NULL;
+	dw_hdmi_update_power(hdmi);
+	dw_hdmi_update_phy_mask(hdmi);
+	mutex_unlock(&hdmi->mutex);
+}
+
+static void dw_hdmi_bridge_atomic_enable(struct drm_bridge *bridge,
+					 struct drm_bridge_state *old_state)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+	struct drm_atomic_state *state = old_state->base.state;
+	struct drm_connector *connector;
+
+	connector = drm_atomic_get_new_connector_for_encoder(state,
+							     bridge->encoder);
+
+	mutex_lock(&hdmi->mutex);
+	hdmi->disabled = false;
+	hdmi->curr_conn = connector;
+	dw_hdmi_update_power(hdmi);
+	dw_hdmi_update_phy_mask(hdmi);
+	mutex_unlock(&hdmi->mutex);
+}
+
+static enum drm_connector_status dw_hdmi_bridge_detect(struct drm_bridge *bridge)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	return dw_hdmi_detect(hdmi);
+}
+
+static struct edid *dw_hdmi_bridge_get_edid(struct drm_bridge *bridge,
+					    struct drm_connector *connector)
+{
+	struct dw_hdmi *hdmi = bridge->driver_private;
+
+	return dw_hdmi_get_edid(hdmi, connector);
+}
+
+static const struct drm_bridge_funcs dw_hdmi_bridge_funcs = {
+	.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+	.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+	.atomic_reset = drm_atomic_helper_bridge_reset,
+	.attach = dw_hdmi_bridge_attach,
+	.detach = dw_hdmi_bridge_detach,
+	.atomic_check = dw_hdmi_bridge_atomic_check,
+	.atomic_get_output_bus_fmts = dw_hdmi_bridge_atomic_get_output_bus_fmts,
+	.atomic_get_input_bus_fmts = dw_hdmi_bridge_atomic_get_input_bus_fmts,
+	.atomic_enable = dw_hdmi_bridge_atomic_enable,
+	.atomic_disable = dw_hdmi_bridge_atomic_disable,
+	.mode_set = dw_hdmi_bridge_mode_set,
+	.mode_valid = dw_hdmi_bridge_mode_valid,
+	.detect = dw_hdmi_bridge_detect,
+	.get_edid = dw_hdmi_bridge_get_edid,
+};
+
+/* -----------------------------------------------------------------------------
+ * IRQ Handling
+ */
+
+static irqreturn_t dw_hdmi_i2c_irq(struct dw_hdmi *hdmi)
+{
+	struct dw_hdmi_i2c *i2c = hdmi->i2c;
+	unsigned int stat;
+
+	stat = hdmi_readb(hdmi, HDMI_IH_I2CM_STAT0);
+	if (!stat)
+		return IRQ_NONE;
+
+	hdmi_writeb(hdmi, stat, HDMI_IH_I2CM_STAT0);
+
+	i2c->stat = stat;
+
+	complete(&i2c->cmp);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t dw_hdmi_hardirq(int irq, void *dev_id)
+{
+	struct dw_hdmi *hdmi = dev_id;
+	u8 intr_stat;
+	irqreturn_t ret = IRQ_NONE;
+
+	if (hdmi->i2c)
+		ret = dw_hdmi_i2c_irq(hdmi);
+
+	intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
+	if (intr_stat) {
+		hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
+		return IRQ_WAKE_THREAD;
+	}
+
+	return ret;
+}
+
+void dw_hdmi_setup_rx_sense(struct dw_hdmi *hdmi, bool hpd, bool rx_sense)
+{
+	mutex_lock(&hdmi->mutex);
+
+	if (!hdmi->force) {
+		/*
+		 * If the RX sense status indicates we're disconnected,
+		 * clear the software rxsense status.
+		 */
+		if (!rx_sense)
+			hdmi->rxsense = false;
+
+		/*
+		 * Only set the software rxsense status when both
+		 * rxsense and hpd indicates we're connected.
+		 * This avoids what seems to be bad behaviour in
+		 * at least iMX6S versions of the phy.
+		 */
+		if (hpd)
+			hdmi->rxsense = true;
+
+		dw_hdmi_update_power(hdmi);
+		dw_hdmi_update_phy_mask(hdmi);
+	}
+	mutex_unlock(&hdmi->mutex);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_setup_rx_sense);
+
+static irqreturn_t dw_hdmi_irq(int irq, void *dev_id)
+{
+	struct dw_hdmi *hdmi = dev_id;
+	u8 intr_stat, phy_int_pol, phy_pol_mask, phy_stat;
+	enum drm_connector_status status = connector_status_unknown;
+
+	intr_stat = hdmi_readb(hdmi, HDMI_IH_PHY_STAT0);
+	phy_int_pol = hdmi_readb(hdmi, HDMI_PHY_POL0);
+	phy_stat = hdmi_readb(hdmi, HDMI_PHY_STAT0);
+
+	phy_pol_mask = 0;
+	if (intr_stat & HDMI_IH_PHY_STAT0_HPD)
+		phy_pol_mask |= HDMI_PHY_HPD;
+	if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE0)
+		phy_pol_mask |= HDMI_PHY_RX_SENSE0;
+	if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE1)
+		phy_pol_mask |= HDMI_PHY_RX_SENSE1;
+	if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE2)
+		phy_pol_mask |= HDMI_PHY_RX_SENSE2;
+	if (intr_stat & HDMI_IH_PHY_STAT0_RX_SENSE3)
+		phy_pol_mask |= HDMI_PHY_RX_SENSE3;
+
+	if (phy_pol_mask)
+		hdmi_modb(hdmi, ~phy_int_pol, phy_pol_mask, HDMI_PHY_POL0);
+
+	/*
+	 * RX sense tells us whether the TDMS transmitters are detecting
+	 * load - in other words, there's something listening on the
+	 * other end of the link.  Use this to decide whether we should
+	 * power on the phy as HPD may be toggled by the sink to merely
+	 * ask the source to re-read the EDID.
+	 */
+	if (intr_stat &
+	    (HDMI_IH_PHY_STAT0_RX_SENSE | HDMI_IH_PHY_STAT0_HPD)) {
+		dw_hdmi_setup_rx_sense(hdmi,
+				       phy_stat & HDMI_PHY_HPD,
+				       phy_stat & HDMI_PHY_RX_SENSE);
+
+		if ((phy_stat & (HDMI_PHY_RX_SENSE | HDMI_PHY_HPD)) == 0) {
+			mutex_lock(&hdmi->cec_notifier_mutex);
+			cec_notifier_phys_addr_invalidate(hdmi->cec_notifier);
+			mutex_unlock(&hdmi->cec_notifier_mutex);
+		}
+
+		if (phy_stat & HDMI_PHY_HPD)
+			status = connector_status_connected;
+
+		if (!(phy_stat & (HDMI_PHY_HPD | HDMI_PHY_RX_SENSE)))
+			status = connector_status_disconnected;
+	}
+
+	if (status != connector_status_unknown) {
+		dev_dbg(hdmi->dev, "EVENT=%s\n",
+			status == connector_status_connected ?
+			"plugin" : "plugout");
+
+		if (hdmi->bridge.dev) {
+			drm_helper_hpd_irq_event(hdmi->bridge.dev);
+			drm_bridge_hpd_notify(&hdmi->bridge, status);
+		}
+	}
+
+	hdmi_writeb(hdmi, intr_stat, HDMI_IH_PHY_STAT0);
+	hdmi_writeb(hdmi, ~(HDMI_IH_PHY_STAT0_HPD | HDMI_IH_PHY_STAT0_RX_SENSE),
+		    HDMI_IH_MUTE_PHY_STAT0);
+
+	return IRQ_HANDLED;
+}
+
+static const struct dw_hdmi_phy_data dw_hdmi_phys[] = {
+	{
+		.type = DW_HDMI_PHY_DWC_HDMI_TX_PHY,
+		.name = "DWC HDMI TX PHY",
+		.gen = 1,
+	}, {
+		.type = DW_HDMI_PHY_DWC_MHL_PHY_HEAC,
+		.name = "DWC MHL PHY + HEAC PHY",
+		.gen = 2,
+		.has_svsret = true,
+		.configure = hdmi_phy_configure_dwc_hdmi_3d_tx,
+	}, {
+		.type = DW_HDMI_PHY_DWC_MHL_PHY,
+		.name = "DWC MHL PHY",
+		.gen = 2,
+		.has_svsret = true,
+		.configure = hdmi_phy_configure_dwc_hdmi_3d_tx,
+	}, {
+		.type = DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY_HEAC,
+		.name = "DWC HDMI 3D TX PHY + HEAC PHY",
+		.gen = 2,
+		.configure = hdmi_phy_configure_dwc_hdmi_3d_tx,
+	}, {
+		.type = DW_HDMI_PHY_DWC_HDMI_3D_TX_PHY,
+		.name = "DWC HDMI 3D TX PHY",
+		.gen = 2,
+		.configure = hdmi_phy_configure_dwc_hdmi_3d_tx,
+	}, {
+		.type = DW_HDMI_PHY_DWC_HDMI20_TX_PHY,
+		.name = "DWC HDMI 2.0 TX PHY",
+		.gen = 2,
+		.has_svsret = true,
+		.configure = hdmi_phy_configure_dwc_hdmi_3d_tx,
+	}, {
+		.type = DW_HDMI_PHY_VENDOR_PHY,
+		.name = "Vendor PHY",
+	}
+};
+
+static int dw_hdmi_detect_phy(struct dw_hdmi *hdmi)
+{
+	unsigned int i;
+	u8 phy_type;
+
+	phy_type = hdmi->plat_data->phy_force_vendor ?
+				DW_HDMI_PHY_VENDOR_PHY :
+				hdmi_readb(hdmi, HDMI_CONFIG2_ID);
+
+	if (phy_type == DW_HDMI_PHY_VENDOR_PHY) {
+		/* Vendor PHYs require support from the glue layer. */
+		if (!hdmi->plat_data->phy_ops || !hdmi->plat_data->phy_name) {
+			dev_err(hdmi->dev,
+				"Vendor HDMI PHY not supported by glue layer\n");
+			return -ENODEV;
+		}
+
+		hdmi->phy.ops = hdmi->plat_data->phy_ops;
+		hdmi->phy.data = hdmi->plat_data->phy_data;
+		hdmi->phy.name = hdmi->plat_data->phy_name;
+		return 0;
+	}
+
+	/* Synopsys PHYs are handled internally. */
+	for (i = 0; i < ARRAY_SIZE(dw_hdmi_phys); ++i) {
+		if (dw_hdmi_phys[i].type == phy_type) {
+			hdmi->phy.ops = &dw_hdmi_synopsys_phy_ops;
+			hdmi->phy.name = dw_hdmi_phys[i].name;
+			hdmi->phy.data = (void *)&dw_hdmi_phys[i];
+
+			if (!dw_hdmi_phys[i].configure &&
+			    !hdmi->plat_data->configure_phy) {
+				dev_err(hdmi->dev, "%s requires platform support\n",
+					hdmi->phy.name);
+				return -ENODEV;
+			}
+
+			return 0;
+		}
+	}
+
+	dev_err(hdmi->dev, "Unsupported HDMI PHY type (%02x)\n", phy_type);
+	return -ENODEV;
+}
+
+static void dw_hdmi_cec_enable(struct dw_hdmi *hdmi)
+{
+	mutex_lock(&hdmi->mutex);
+	hdmi->mc_clkdis &= ~HDMI_MC_CLKDIS_CECCLK_DISABLE;
+	hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS);
+	mutex_unlock(&hdmi->mutex);
+}
+
+static void dw_hdmi_cec_disable(struct dw_hdmi *hdmi)
+{
+	mutex_lock(&hdmi->mutex);
+	hdmi->mc_clkdis |= HDMI_MC_CLKDIS_CECCLK_DISABLE;
+	hdmi_writeb(hdmi, hdmi->mc_clkdis, HDMI_MC_CLKDIS);
+	mutex_unlock(&hdmi->mutex);
+}
+
+static const struct dw_hdmi_cec_ops dw_hdmi_cec_ops = {
+	.write = hdmi_writeb,
+	.read = hdmi_readb,
+	.enable = dw_hdmi_cec_enable,
+	.disable = dw_hdmi_cec_disable,
+};
+
+static const struct regmap_config hdmi_regmap_8bit_config = {
+	.reg_bits	= 32,
+	.val_bits	= 8,
+	.reg_stride	= 1,
+	.max_register	= HDMI_I2CM_FS_SCL_LCNT_0_ADDR,
+};
+
+static const struct regmap_config hdmi_regmap_32bit_config = {
+	.reg_bits	= 32,
+	.val_bits	= 32,
+	.reg_stride	= 4,
+	.max_register	= HDMI_I2CM_FS_SCL_LCNT_0_ADDR << 2,
+};
+
+static void dw_hdmi_init_hw(struct dw_hdmi *hdmi)
+{
+	initialize_hdmi_ih_mutes(hdmi);
+
+	/*
+	 * Reset HDMI DDC I2C master controller and mute I2CM interrupts.
+	 * Even if we are using a separate i2c adapter doing this doesn't
+	 * hurt.
+	 */
+	dw_hdmi_i2c_init(hdmi);
+
+	if (hdmi->phy.ops->setup_hpd)
+		hdmi->phy.ops->setup_hpd(hdmi, hdmi->phy.data);
+}
+
+/* -----------------------------------------------------------------------------
+ * Probe/remove API, used from platforms based on the DRM bridge API.
+ */
+
+static int dw_hdmi_parse_dt(struct dw_hdmi *hdmi)
+{
+	struct device_node *endpoint;
+	struct device_node *remote;
+
+	if (!hdmi->plat_data->output_port)
+		return 0;
+
+	endpoint = of_graph_get_endpoint_by_regs(hdmi->dev->of_node,
+						 hdmi->plat_data->output_port,
+						 -1);
+	if (!endpoint) {
+		/*
+		 * On platforms whose bindings don't make the output port
+		 * mandatory (such as Rockchip) the plat_data->output_port
+		 * field isn't set, so it's safe to make this a fatal error.
+		 */
+		dev_err(hdmi->dev, "Missing endpoint in port@%u\n",
+			hdmi->plat_data->output_port);
+		return -ENODEV;
+	}
+
+	remote = of_graph_get_remote_port_parent(endpoint);
+	of_node_put(endpoint);
+	if (!remote) {
+		dev_err(hdmi->dev, "Endpoint in port@%u unconnected\n",
+			hdmi->plat_data->output_port);
+		return -ENODEV;
+	}
+
+	if (!of_device_is_available(remote)) {
+		dev_err(hdmi->dev, "port@%u remote device is disabled\n",
+			hdmi->plat_data->output_port);
+		of_node_put(remote);
+		return -ENODEV;
+	}
+
+	hdmi->next_bridge = of_drm_find_bridge(remote);
+	of_node_put(remote);
+	if (!hdmi->next_bridge)
+		return -EPROBE_DEFER;
+
+	return 0;
+}
+
+struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
+			      const struct dw_hdmi_plat_data *plat_data)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct platform_device_info pdevinfo;
+	struct device_node *ddc_node;
+	struct dw_hdmi_cec_data cec;
+	struct dw_hdmi *hdmi;
+	struct resource *iores = NULL;
+	int irq;
+	int ret;
+	u32 val = 1;
+	u8 prod_id0;
+	u8 prod_id1;
+	u8 config0;
+	u8 config3;
+
+	hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
+	if (!hdmi)
+		return ERR_PTR(-ENOMEM);
+
+	hdmi->plat_data = plat_data;
+	hdmi->dev = dev;
+	hdmi->sample_rate = 48000;
+	hdmi->channels = 2;
+	hdmi->disabled = true;
+	hdmi->rxsense = true;
+	hdmi->phy_mask = (u8)~(HDMI_PHY_HPD | HDMI_PHY_RX_SENSE);
+	hdmi->mc_clkdis = 0x7f;
+	hdmi->last_connector_result = connector_status_disconnected;
+
+	mutex_init(&hdmi->mutex);
+	mutex_init(&hdmi->audio_mutex);
+	mutex_init(&hdmi->cec_notifier_mutex);
+	spin_lock_init(&hdmi->audio_lock);
+
+	ret = dw_hdmi_parse_dt(hdmi);
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	ddc_node = of_parse_phandle(np, "ddc-i2c-bus", 0);
+	if (ddc_node) {
+		hdmi->ddc = of_get_i2c_adapter_by_node(ddc_node);
+		of_node_put(ddc_node);
+		if (!hdmi->ddc) {
+			dev_dbg(hdmi->dev, "failed to read ddc node\n");
+			return ERR_PTR(-EPROBE_DEFER);
+		}
+
+	} else {
+		dev_dbg(hdmi->dev, "no ddc property found\n");
+	}
+
+	if (!plat_data->regm) {
+		const struct regmap_config *reg_config;
+
+		of_property_read_u32(np, "reg-io-width", &val);
+		switch (val) {
+		case 4:
+			reg_config = &hdmi_regmap_32bit_config;
+			hdmi->reg_shift = 2;
+			break;
+		case 1:
+			reg_config = &hdmi_regmap_8bit_config;
+			break;
+		default:
+			dev_err(dev, "reg-io-width must be 1 or 4\n");
+			return ERR_PTR(-EINVAL);
+		}
+
+		iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		hdmi->regs = devm_ioremap_resource(dev, iores);
+		if (IS_ERR(hdmi->regs)) {
+			ret = PTR_ERR(hdmi->regs);
+			goto err_res;
+		}
+
+		hdmi->regm = devm_regmap_init_mmio(dev, hdmi->regs, reg_config);
+		if (IS_ERR(hdmi->regm)) {
+			dev_err(dev, "Failed to configure regmap\n");
+			ret = PTR_ERR(hdmi->regm);
+			goto err_res;
+		}
+	} else {
+		hdmi->regm = plat_data->regm;
+	}
+
+	hdmi->isfr_clk = devm_clk_get(hdmi->dev, "isfr");
+	if (IS_ERR(hdmi->isfr_clk)) {
+		ret = PTR_ERR(hdmi->isfr_clk);
+		dev_err(hdmi->dev, "Unable to get HDMI isfr clk: %d\n", ret);
+		goto err_res;
+	}
+
+	ret = clk_prepare_enable(hdmi->isfr_clk);
+	if (ret) {
+		dev_err(hdmi->dev, "Cannot enable HDMI isfr clock: %d\n", ret);
+		goto err_res;
+	}
+
+	hdmi->iahb_clk = devm_clk_get(hdmi->dev, "iahb");
+	if (IS_ERR(hdmi->iahb_clk)) {
+		ret = PTR_ERR(hdmi->iahb_clk);
+		dev_err(hdmi->dev, "Unable to get HDMI iahb clk: %d\n", ret);
+		goto err_isfr;
+	}
+
+	ret = clk_prepare_enable(hdmi->iahb_clk);
+	if (ret) {
+		dev_err(hdmi->dev, "Cannot enable HDMI iahb clock: %d\n", ret);
+		goto err_isfr;
+	}
+
+	hdmi->cec_clk = devm_clk_get(hdmi->dev, "cec");
+	if (PTR_ERR(hdmi->cec_clk) == -ENOENT) {
+		hdmi->cec_clk = NULL;
+	} else if (IS_ERR(hdmi->cec_clk)) {
+		ret = PTR_ERR(hdmi->cec_clk);
+		if (ret != -EPROBE_DEFER)
+			dev_err(hdmi->dev, "Cannot get HDMI cec clock: %d\n",
+				ret);
+
+		hdmi->cec_clk = NULL;
+		goto err_iahb;
+	} else {
+		ret = clk_prepare_enable(hdmi->cec_clk);
+		if (ret) {
+			dev_err(hdmi->dev, "Cannot enable HDMI cec clock: %d\n",
+				ret);
+			goto err_iahb;
+		}
+	}
+
+	/* Product and revision IDs */
+	hdmi->version = (hdmi_readb(hdmi, HDMI_DESIGN_ID) << 8)
+		      | (hdmi_readb(hdmi, HDMI_REVISION_ID) << 0);
+	prod_id0 = hdmi_readb(hdmi, HDMI_PRODUCT_ID0);
+	prod_id1 = hdmi_readb(hdmi, HDMI_PRODUCT_ID1);
+
+	if (prod_id0 != HDMI_PRODUCT_ID0_HDMI_TX ||
+	    (prod_id1 & ~HDMI_PRODUCT_ID1_HDCP) != HDMI_PRODUCT_ID1_HDMI_TX) {
+		dev_err(dev, "Unsupported HDMI controller (%04x:%02x:%02x)\n",
+			hdmi->version, prod_id0, prod_id1);
+		ret = -ENODEV;
+		goto err_iahb;
+	}
+
+	ret = dw_hdmi_detect_phy(hdmi);
+	if (ret < 0)
+		goto err_iahb;
+
+	dev_info(dev, "Detected HDMI TX controller v%x.%03x %s HDCP (%s)\n",
+		 hdmi->version >> 12, hdmi->version & 0xfff,
+		 prod_id1 & HDMI_PRODUCT_ID1_HDCP ? "with" : "without",
+		 hdmi->phy.name);
+
+	dw_hdmi_init_hw(hdmi);
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		ret = irq;
+		goto err_iahb;
+	}
+
+	ret = devm_request_threaded_irq(dev, irq, dw_hdmi_hardirq,
+					dw_hdmi_irq, IRQF_SHARED,
+					dev_name(dev), hdmi);
+	if (ret)
+		goto err_iahb;
+
+	/*
+	 * To prevent overflows in HDMI_IH_FC_STAT2, set the clk regenerator
+	 * N and cts values before enabling phy
+	 */
+	hdmi_init_clk_regenerator(hdmi);
+
+	/* If DDC bus is not specified, try to register HDMI I2C bus */
+	if (!hdmi->ddc) {
+		/* Look for (optional) stuff related to unwedging */
+		hdmi->pinctrl = devm_pinctrl_get(dev);
+		if (!IS_ERR(hdmi->pinctrl)) {
+			hdmi->unwedge_state =
+				pinctrl_lookup_state(hdmi->pinctrl, "unwedge");
+			hdmi->default_state =
+				pinctrl_lookup_state(hdmi->pinctrl, "default");
+
+			if (IS_ERR(hdmi->default_state) ||
+			    IS_ERR(hdmi->unwedge_state)) {
+				if (!IS_ERR(hdmi->unwedge_state))
+					dev_warn(dev,
+						 "Unwedge requires default pinctrl\n");
+				hdmi->default_state = NULL;
+				hdmi->unwedge_state = NULL;
+			}
+		}
+
+		hdmi->ddc = dw_hdmi_i2c_adapter(hdmi);
+		if (IS_ERR(hdmi->ddc))
+			hdmi->ddc = NULL;
+	}
+
+	hdmi->bridge.driver_private = hdmi;
+	hdmi->bridge.funcs = &dw_hdmi_bridge_funcs;
+	hdmi->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID
+			 | DRM_BRIDGE_OP_HPD;
+	hdmi->bridge.interlace_allowed = true;
+#ifdef CONFIG_OF
+	hdmi->bridge.of_node = pdev->dev.of_node;
+#endif
+
+	memset(&pdevinfo, 0, sizeof(pdevinfo));
+	pdevinfo.parent = dev;
+	pdevinfo.id = PLATFORM_DEVID_AUTO;
+
+	config0 = hdmi_readb(hdmi, HDMI_CONFIG0_ID);
+	config3 = hdmi_readb(hdmi, HDMI_CONFIG3_ID);
+
+	if (iores && config3 & HDMI_CONFIG3_AHBAUDDMA) {
+		struct dw_hdmi_audio_data audio;
+
+		audio.phys = iores->start;
+		audio.base = hdmi->regs;
+		audio.irq = irq;
+		audio.hdmi = hdmi;
+		audio.get_eld = hdmi_audio_get_eld;
+		hdmi->enable_audio = dw_hdmi_ahb_audio_enable;
+		hdmi->disable_audio = dw_hdmi_ahb_audio_disable;
+
+		pdevinfo.name = "dw-hdmi-ahb-audio";
+		pdevinfo.data = &audio;
+		pdevinfo.size_data = sizeof(audio);
+		pdevinfo.dma_mask = DMA_BIT_MASK(32);
+		hdmi->audio = platform_device_register_full(&pdevinfo);
+	} else if (config0 & HDMI_CONFIG0_I2S) {
+		struct dw_hdmi_i2s_audio_data audio;
+
+		audio.hdmi	= hdmi;
+		audio.get_eld	= hdmi_audio_get_eld;
+		audio.write	= hdmi_writeb;
+		audio.read	= hdmi_readb;
+		hdmi->enable_audio = dw_hdmi_i2s_audio_enable;
+		hdmi->disable_audio = dw_hdmi_i2s_audio_disable;
+
+		pdevinfo.name = "dw-hdmi-i2s-audio";
+		pdevinfo.data = &audio;
+		pdevinfo.size_data = sizeof(audio);
+		pdevinfo.dma_mask = DMA_BIT_MASK(32);
+		hdmi->audio = platform_device_register_full(&pdevinfo);
+	} else if (iores && config3 & HDMI_CONFIG3_GPAUD) {
+		struct dw_hdmi_audio_data audio;
+
+		audio.phys = iores->start;
+		audio.base = hdmi->regs;
+		audio.irq = irq;
+		audio.hdmi = hdmi;
+		audio.get_eld = hdmi_audio_get_eld;
+
+		hdmi->enable_audio = dw_hdmi_gp_audio_enable;
+		hdmi->disable_audio = dw_hdmi_gp_audio_disable;
+
+		pdevinfo.name = "dw-hdmi-gp-audio";
+		pdevinfo.id = PLATFORM_DEVID_NONE;
+		pdevinfo.data = &audio;
+		pdevinfo.size_data = sizeof(audio);
+		pdevinfo.dma_mask = DMA_BIT_MASK(32);
+		hdmi->audio = platform_device_register_full(&pdevinfo);
+	}
+
+	if (!plat_data->disable_cec && (config0 & HDMI_CONFIG0_CEC)) {
+		cec.hdmi = hdmi;
+		cec.ops = &dw_hdmi_cec_ops;
+		cec.irq = irq;
+
+		pdevinfo.name = "dw-hdmi-cec";
+		pdevinfo.data = &cec;
+		pdevinfo.size_data = sizeof(cec);
+		pdevinfo.dma_mask = 0;
+
+		hdmi->cec = platform_device_register_full(&pdevinfo);
+	}
+
+	drm_bridge_add(&hdmi->bridge);
+
+	return hdmi;
+
+err_iahb:
+	clk_disable_unprepare(hdmi->iahb_clk);
+	clk_disable_unprepare(hdmi->cec_clk);
+err_isfr:
+	clk_disable_unprepare(hdmi->isfr_clk);
+err_res:
+	i2c_put_adapter(hdmi->ddc);
+
+	return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_probe);
+
+void dw_hdmi_remove(struct dw_hdmi *hdmi)
+{
+	drm_bridge_remove(&hdmi->bridge);
+
+	if (hdmi->audio && !IS_ERR(hdmi->audio))
+		platform_device_unregister(hdmi->audio);
+	if (!IS_ERR(hdmi->cec))
+		platform_device_unregister(hdmi->cec);
+
+	/* Disable all interrupts */
+	hdmi_writeb(hdmi, ~0, HDMI_IH_MUTE_PHY_STAT0);
+
+	clk_disable_unprepare(hdmi->iahb_clk);
+	clk_disable_unprepare(hdmi->isfr_clk);
+	clk_disable_unprepare(hdmi->cec_clk);
+
+	if (hdmi->i2c)
+		i2c_del_adapter(&hdmi->i2c->adap);
+	else
+		i2c_put_adapter(hdmi->ddc);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_remove);
+
+/* -----------------------------------------------------------------------------
+ * Bind/unbind API, used from platforms based on the component framework.
+ */
+struct dw_hdmi *dw_hdmi_bind(struct platform_device *pdev,
+			     struct drm_encoder *encoder,
+			     const struct dw_hdmi_plat_data *plat_data)
+{
+	struct dw_hdmi *hdmi;
+	int ret;
+
+	hdmi = dw_hdmi_probe(pdev, plat_data);
+	if (IS_ERR(hdmi))
+		return hdmi;
+
+	ret = drm_bridge_attach(encoder, &hdmi->bridge, NULL, 0);
+	if (ret) {
+		dw_hdmi_remove(hdmi);
+		return ERR_PTR(ret);
+	}
+
+	return hdmi;
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_bind);
+
+void dw_hdmi_unbind(struct dw_hdmi *hdmi)
+{
+	dw_hdmi_remove(hdmi);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_unbind);
+
+void dw_hdmi_resume(struct dw_hdmi *hdmi)
+{
+	dw_hdmi_init_hw(hdmi);
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_resume);
+
+MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
+MODULE_AUTHOR("Andy Yan <andy.yan@rock-chips.com>");
+MODULE_AUTHOR("Yakir Yang <ykk@rock-chips.com>");
+MODULE_AUTHOR("Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>");
+MODULE_DESCRIPTION("DW HDMI transmitter driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:dw-hdmi");
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h
new file mode 100644
index 000000000..af43a0414
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.h
@@ -0,0 +1,1168 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ */
+
+#ifndef __DW_HDMI_H__
+#define __DW_HDMI_H__
+
+/* Identification Registers */
+#define HDMI_DESIGN_ID                          0x0000
+#define HDMI_REVISION_ID                        0x0001
+#define HDMI_PRODUCT_ID0                        0x0002
+#define HDMI_PRODUCT_ID1                        0x0003
+#define HDMI_CONFIG0_ID                         0x0004
+#define HDMI_CONFIG1_ID                         0x0005
+#define HDMI_CONFIG2_ID                         0x0006
+#define HDMI_CONFIG3_ID                         0x0007
+
+/* Interrupt Registers */
+#define HDMI_IH_FC_STAT0                        0x0100
+#define HDMI_IH_FC_STAT1                        0x0101
+#define HDMI_IH_FC_STAT2                        0x0102
+#define HDMI_IH_AS_STAT0                        0x0103
+#define HDMI_IH_PHY_STAT0                       0x0104
+#define HDMI_IH_I2CM_STAT0                      0x0105
+#define HDMI_IH_CEC_STAT0                       0x0106
+#define HDMI_IH_VP_STAT0                        0x0107
+#define HDMI_IH_I2CMPHY_STAT0                   0x0108
+#define HDMI_IH_AHBDMAAUD_STAT0                 0x0109
+
+#define HDMI_IH_MUTE_FC_STAT0                   0x0180
+#define HDMI_IH_MUTE_FC_STAT1                   0x0181
+#define HDMI_IH_MUTE_FC_STAT2                   0x0182
+#define HDMI_IH_MUTE_AS_STAT0                   0x0183
+#define HDMI_IH_MUTE_PHY_STAT0                  0x0184
+#define HDMI_IH_MUTE_I2CM_STAT0                 0x0185
+#define HDMI_IH_MUTE_CEC_STAT0                  0x0186
+#define HDMI_IH_MUTE_VP_STAT0                   0x0187
+#define HDMI_IH_MUTE_I2CMPHY_STAT0              0x0188
+#define HDMI_IH_MUTE_AHBDMAAUD_STAT0            0x0189
+#define HDMI_IH_MUTE                            0x01FF
+
+/* Video Sample Registers */
+#define HDMI_TX_INVID0                          0x0200
+#define HDMI_TX_INSTUFFING                      0x0201
+#define HDMI_TX_GYDATA0                         0x0202
+#define HDMI_TX_GYDATA1                         0x0203
+#define HDMI_TX_RCRDATA0                        0x0204
+#define HDMI_TX_RCRDATA1                        0x0205
+#define HDMI_TX_BCBDATA0                        0x0206
+#define HDMI_TX_BCBDATA1                        0x0207
+
+/* Video Packetizer Registers */
+#define HDMI_VP_STATUS                          0x0800
+#define HDMI_VP_PR_CD                           0x0801
+#define HDMI_VP_STUFF                           0x0802
+#define HDMI_VP_REMAP                           0x0803
+#define HDMI_VP_CONF                            0x0804
+#define HDMI_VP_STAT                            0x0805
+#define HDMI_VP_INT                             0x0806
+#define HDMI_VP_MASK                            0x0807
+#define HDMI_VP_POL                             0x0808
+
+/* Frame Composer Registers */
+#define HDMI_FC_INVIDCONF                       0x1000
+#define HDMI_FC_INHACTV0                        0x1001
+#define HDMI_FC_INHACTV1                        0x1002
+#define HDMI_FC_INHBLANK0                       0x1003
+#define HDMI_FC_INHBLANK1                       0x1004
+#define HDMI_FC_INVACTV0                        0x1005
+#define HDMI_FC_INVACTV1                        0x1006
+#define HDMI_FC_INVBLANK                        0x1007
+#define HDMI_FC_HSYNCINDELAY0                   0x1008
+#define HDMI_FC_HSYNCINDELAY1                   0x1009
+#define HDMI_FC_HSYNCINWIDTH0                   0x100A
+#define HDMI_FC_HSYNCINWIDTH1                   0x100B
+#define HDMI_FC_VSYNCINDELAY                    0x100C
+#define HDMI_FC_VSYNCINWIDTH                    0x100D
+#define HDMI_FC_INFREQ0                         0x100E
+#define HDMI_FC_INFREQ1                         0x100F
+#define HDMI_FC_INFREQ2                         0x1010
+#define HDMI_FC_CTRLDUR                         0x1011
+#define HDMI_FC_EXCTRLDUR                       0x1012
+#define HDMI_FC_EXCTRLSPAC                      0x1013
+#define HDMI_FC_CH0PREAM                        0x1014
+#define HDMI_FC_CH1PREAM                        0x1015
+#define HDMI_FC_CH2PREAM                        0x1016
+#define HDMI_FC_AVICONF3                        0x1017
+#define HDMI_FC_GCP                             0x1018
+#define HDMI_FC_AVICONF0                        0x1019
+#define HDMI_FC_AVICONF1                        0x101A
+#define HDMI_FC_AVICONF2                        0x101B
+#define HDMI_FC_AVIVID                          0x101C
+#define HDMI_FC_AVIETB0                         0x101D
+#define HDMI_FC_AVIETB1                         0x101E
+#define HDMI_FC_AVISBB0                         0x101F
+#define HDMI_FC_AVISBB1                         0x1020
+#define HDMI_FC_AVIELB0                         0x1021
+#define HDMI_FC_AVIELB1                         0x1022
+#define HDMI_FC_AVISRB0                         0x1023
+#define HDMI_FC_AVISRB1                         0x1024
+#define HDMI_FC_AUDICONF0                       0x1025
+#define HDMI_FC_AUDICONF1                       0x1026
+#define HDMI_FC_AUDICONF2                       0x1027
+#define HDMI_FC_AUDICONF3                       0x1028
+#define HDMI_FC_VSDIEEEID0                      0x1029
+#define HDMI_FC_VSDSIZE                         0x102A
+#define HDMI_FC_VSDIEEEID1                      0x1030
+#define HDMI_FC_VSDIEEEID2                      0x1031
+#define HDMI_FC_VSDPAYLOAD0                     0x1032
+#define HDMI_FC_VSDPAYLOAD1                     0x1033
+#define HDMI_FC_VSDPAYLOAD2                     0x1034
+#define HDMI_FC_VSDPAYLOAD3                     0x1035
+#define HDMI_FC_VSDPAYLOAD4                     0x1036
+#define HDMI_FC_VSDPAYLOAD5                     0x1037
+#define HDMI_FC_VSDPAYLOAD6                     0x1038
+#define HDMI_FC_VSDPAYLOAD7                     0x1039
+#define HDMI_FC_VSDPAYLOAD8                     0x103A
+#define HDMI_FC_VSDPAYLOAD9                     0x103B
+#define HDMI_FC_VSDPAYLOAD10                    0x103C
+#define HDMI_FC_VSDPAYLOAD11                    0x103D
+#define HDMI_FC_VSDPAYLOAD12                    0x103E
+#define HDMI_FC_VSDPAYLOAD13                    0x103F
+#define HDMI_FC_VSDPAYLOAD14                    0x1040
+#define HDMI_FC_VSDPAYLOAD15                    0x1041
+#define HDMI_FC_VSDPAYLOAD16                    0x1042
+#define HDMI_FC_VSDPAYLOAD17                    0x1043
+#define HDMI_FC_VSDPAYLOAD18                    0x1044
+#define HDMI_FC_VSDPAYLOAD19                    0x1045
+#define HDMI_FC_VSDPAYLOAD20                    0x1046
+#define HDMI_FC_VSDPAYLOAD21                    0x1047
+#define HDMI_FC_VSDPAYLOAD22                    0x1048
+#define HDMI_FC_VSDPAYLOAD23                    0x1049
+#define HDMI_FC_SPDVENDORNAME0                  0x104A
+#define HDMI_FC_SPDVENDORNAME1                  0x104B
+#define HDMI_FC_SPDVENDORNAME2                  0x104C
+#define HDMI_FC_SPDVENDORNAME3                  0x104D
+#define HDMI_FC_SPDVENDORNAME4                  0x104E
+#define HDMI_FC_SPDVENDORNAME5                  0x104F
+#define HDMI_FC_SPDVENDORNAME6                  0x1050
+#define HDMI_FC_SPDVENDORNAME7                  0x1051
+#define HDMI_FC_SDPPRODUCTNAME0                 0x1052
+#define HDMI_FC_SDPPRODUCTNAME1                 0x1053
+#define HDMI_FC_SDPPRODUCTNAME2                 0x1054
+#define HDMI_FC_SDPPRODUCTNAME3                 0x1055
+#define HDMI_FC_SDPPRODUCTNAME4                 0x1056
+#define HDMI_FC_SDPPRODUCTNAME5                 0x1057
+#define HDMI_FC_SDPPRODUCTNAME6                 0x1058
+#define HDMI_FC_SDPPRODUCTNAME7                 0x1059
+#define HDMI_FC_SDPPRODUCTNAME8                 0x105A
+#define HDMI_FC_SDPPRODUCTNAME9                 0x105B
+#define HDMI_FC_SDPPRODUCTNAME10                0x105C
+#define HDMI_FC_SDPPRODUCTNAME11                0x105D
+#define HDMI_FC_SDPPRODUCTNAME12                0x105E
+#define HDMI_FC_SDPPRODUCTNAME13                0x105F
+#define HDMI_FC_SDPPRODUCTNAME14                0x1060
+#define HDMI_FC_SPDPRODUCTNAME15                0x1061
+#define HDMI_FC_SPDDEVICEINF                    0x1062
+#define HDMI_FC_AUDSCONF                        0x1063
+#define HDMI_FC_AUDSSTAT                        0x1064
+#define HDMI_FC_AUDSV                           0x1065
+#define HDMI_FC_AUDSU                           0x1066
+#define HDMI_FC_AUDSCHNLS0                       0x1067
+#define HDMI_FC_AUDSCHNLS1                       0x1068
+#define HDMI_FC_AUDSCHNLS2                       0x1069
+#define HDMI_FC_AUDSCHNLS3                       0x106A
+#define HDMI_FC_AUDSCHNLS4                       0x106B
+#define HDMI_FC_AUDSCHNLS5                       0x106C
+#define HDMI_FC_AUDSCHNLS6                       0x106D
+#define HDMI_FC_AUDSCHNLS7                       0x106E
+#define HDMI_FC_AUDSCHNLS8                       0x106F
+#define HDMI_FC_DATACH0FILL                     0x1070
+#define HDMI_FC_DATACH1FILL                     0x1071
+#define HDMI_FC_DATACH2FILL                     0x1072
+#define HDMI_FC_CTRLQHIGH                       0x1073
+#define HDMI_FC_CTRLQLOW                        0x1074
+#define HDMI_FC_ACP0                            0x1075
+#define HDMI_FC_ACP28                           0x1076
+#define HDMI_FC_ACP27                           0x1077
+#define HDMI_FC_ACP26                           0x1078
+#define HDMI_FC_ACP25                           0x1079
+#define HDMI_FC_ACP24                           0x107A
+#define HDMI_FC_ACP23                           0x107B
+#define HDMI_FC_ACP22                           0x107C
+#define HDMI_FC_ACP21                           0x107D
+#define HDMI_FC_ACP20                           0x107E
+#define HDMI_FC_ACP19                           0x107F
+#define HDMI_FC_ACP18                           0x1080
+#define HDMI_FC_ACP17                           0x1081
+#define HDMI_FC_ACP16                           0x1082
+#define HDMI_FC_ACP15                           0x1083
+#define HDMI_FC_ACP14                           0x1084
+#define HDMI_FC_ACP13                           0x1085
+#define HDMI_FC_ACP12                           0x1086
+#define HDMI_FC_ACP11                           0x1087
+#define HDMI_FC_ACP10                           0x1088
+#define HDMI_FC_ACP9                            0x1089
+#define HDMI_FC_ACP8                            0x108A
+#define HDMI_FC_ACP7                            0x108B
+#define HDMI_FC_ACP6                            0x108C
+#define HDMI_FC_ACP5                            0x108D
+#define HDMI_FC_ACP4                            0x108E
+#define HDMI_FC_ACP3                            0x108F
+#define HDMI_FC_ACP2                            0x1090
+#define HDMI_FC_ACP1                            0x1091
+#define HDMI_FC_ISCR1_0                         0x1092
+#define HDMI_FC_ISCR1_16                        0x1093
+#define HDMI_FC_ISCR1_15                        0x1094
+#define HDMI_FC_ISCR1_14                        0x1095
+#define HDMI_FC_ISCR1_13                        0x1096
+#define HDMI_FC_ISCR1_12                        0x1097
+#define HDMI_FC_ISCR1_11                        0x1098
+#define HDMI_FC_ISCR1_10                        0x1099
+#define HDMI_FC_ISCR1_9                         0x109A
+#define HDMI_FC_ISCR1_8                         0x109B
+#define HDMI_FC_ISCR1_7                         0x109C
+#define HDMI_FC_ISCR1_6                         0x109D
+#define HDMI_FC_ISCR1_5                         0x109E
+#define HDMI_FC_ISCR1_4                         0x109F
+#define HDMI_FC_ISCR1_3                         0x10A0
+#define HDMI_FC_ISCR1_2                         0x10A1
+#define HDMI_FC_ISCR1_1                         0x10A2
+#define HDMI_FC_ISCR2_15                        0x10A3
+#define HDMI_FC_ISCR2_14                        0x10A4
+#define HDMI_FC_ISCR2_13                        0x10A5
+#define HDMI_FC_ISCR2_12                        0x10A6
+#define HDMI_FC_ISCR2_11                        0x10A7
+#define HDMI_FC_ISCR2_10                        0x10A8
+#define HDMI_FC_ISCR2_9                         0x10A9
+#define HDMI_FC_ISCR2_8                         0x10AA
+#define HDMI_FC_ISCR2_7                         0x10AB
+#define HDMI_FC_ISCR2_6                         0x10AC
+#define HDMI_FC_ISCR2_5                         0x10AD
+#define HDMI_FC_ISCR2_4                         0x10AE
+#define HDMI_FC_ISCR2_3                         0x10AF
+#define HDMI_FC_ISCR2_2                         0x10B0
+#define HDMI_FC_ISCR2_1                         0x10B1
+#define HDMI_FC_ISCR2_0                         0x10B2
+#define HDMI_FC_DATAUTO0                        0x10B3
+#define HDMI_FC_DATAUTO1                        0x10B4
+#define HDMI_FC_DATAUTO2                        0x10B5
+#define HDMI_FC_DATMAN                          0x10B6
+#define HDMI_FC_DATAUTO3                        0x10B7
+#define HDMI_FC_RDRB0                           0x10B8
+#define HDMI_FC_RDRB1                           0x10B9
+#define HDMI_FC_RDRB2                           0x10BA
+#define HDMI_FC_RDRB3                           0x10BB
+#define HDMI_FC_RDRB4                           0x10BC
+#define HDMI_FC_RDRB5                           0x10BD
+#define HDMI_FC_RDRB6                           0x10BE
+#define HDMI_FC_RDRB7                           0x10BF
+#define HDMI_FC_STAT0                           0x10D0
+#define HDMI_FC_INT0                            0x10D1
+#define HDMI_FC_MASK0                           0x10D2
+#define HDMI_FC_POL0                            0x10D3
+#define HDMI_FC_STAT1                           0x10D4
+#define HDMI_FC_INT1                            0x10D5
+#define HDMI_FC_MASK1                           0x10D6
+#define HDMI_FC_POL1                            0x10D7
+#define HDMI_FC_STAT2                           0x10D8
+#define HDMI_FC_INT2                            0x10D9
+#define HDMI_FC_MASK2                           0x10DA
+#define HDMI_FC_POL2                            0x10DB
+#define HDMI_FC_PRCONF                          0x10E0
+#define HDMI_FC_SCRAMBLER_CTRL                  0x10E1
+#define HDMI_FC_PACKET_TX_EN                    0x10E3
+
+#define HDMI_FC_GMD_STAT                        0x1100
+#define HDMI_FC_GMD_EN                          0x1101
+#define HDMI_FC_GMD_UP                          0x1102
+#define HDMI_FC_GMD_CONF                        0x1103
+#define HDMI_FC_GMD_HB                          0x1104
+#define HDMI_FC_GMD_PB0                         0x1105
+#define HDMI_FC_GMD_PB1                         0x1106
+#define HDMI_FC_GMD_PB2                         0x1107
+#define HDMI_FC_GMD_PB3                         0x1108
+#define HDMI_FC_GMD_PB4                         0x1109
+#define HDMI_FC_GMD_PB5                         0x110A
+#define HDMI_FC_GMD_PB6                         0x110B
+#define HDMI_FC_GMD_PB7                         0x110C
+#define HDMI_FC_GMD_PB8                         0x110D
+#define HDMI_FC_GMD_PB9                         0x110E
+#define HDMI_FC_GMD_PB10                        0x110F
+#define HDMI_FC_GMD_PB11                        0x1110
+#define HDMI_FC_GMD_PB12                        0x1111
+#define HDMI_FC_GMD_PB13                        0x1112
+#define HDMI_FC_GMD_PB14                        0x1113
+#define HDMI_FC_GMD_PB15                        0x1114
+#define HDMI_FC_GMD_PB16                        0x1115
+#define HDMI_FC_GMD_PB17                        0x1116
+#define HDMI_FC_GMD_PB18                        0x1117
+#define HDMI_FC_GMD_PB19                        0x1118
+#define HDMI_FC_GMD_PB20                        0x1119
+#define HDMI_FC_GMD_PB21                        0x111A
+#define HDMI_FC_GMD_PB22                        0x111B
+#define HDMI_FC_GMD_PB23                        0x111C
+#define HDMI_FC_GMD_PB24                        0x111D
+#define HDMI_FC_GMD_PB25                        0x111E
+#define HDMI_FC_GMD_PB26                        0x111F
+#define HDMI_FC_GMD_PB27                        0x1120
+
+#define HDMI_FC_DRM_UP                          0x1167
+#define HDMI_FC_DRM_HB0                         0x1168
+#define HDMI_FC_DRM_HB1                         0x1169
+#define HDMI_FC_DRM_PB0                         0x116A
+#define HDMI_FC_DRM_PB1                         0x116B
+#define HDMI_FC_DRM_PB2                         0x116C
+#define HDMI_FC_DRM_PB3                         0x116D
+#define HDMI_FC_DRM_PB4                         0x116E
+#define HDMI_FC_DRM_PB5                         0x116F
+#define HDMI_FC_DRM_PB6                         0x1170
+#define HDMI_FC_DRM_PB7                         0x1171
+#define HDMI_FC_DRM_PB8                         0x1172
+#define HDMI_FC_DRM_PB9                         0x1173
+#define HDMI_FC_DRM_PB10                        0x1174
+#define HDMI_FC_DRM_PB11                        0x1175
+#define HDMI_FC_DRM_PB12                        0x1176
+#define HDMI_FC_DRM_PB13                        0x1177
+#define HDMI_FC_DRM_PB14                        0x1178
+#define HDMI_FC_DRM_PB15                        0x1179
+#define HDMI_FC_DRM_PB16                        0x117A
+#define HDMI_FC_DRM_PB17                        0x117B
+#define HDMI_FC_DRM_PB18                        0x117C
+#define HDMI_FC_DRM_PB19                        0x117D
+#define HDMI_FC_DRM_PB20                        0x117E
+#define HDMI_FC_DRM_PB21                        0x117F
+#define HDMI_FC_DRM_PB22                        0x1180
+#define HDMI_FC_DRM_PB23                        0x1181
+#define HDMI_FC_DRM_PB24                        0x1182
+#define HDMI_FC_DRM_PB25                        0x1183
+#define HDMI_FC_DRM_PB26                        0x1184
+
+#define HDMI_FC_DBGFORCE                        0x1200
+#define HDMI_FC_DBGAUD0CH0                      0x1201
+#define HDMI_FC_DBGAUD1CH0                      0x1202
+#define HDMI_FC_DBGAUD2CH0                      0x1203
+#define HDMI_FC_DBGAUD0CH1                      0x1204
+#define HDMI_FC_DBGAUD1CH1                      0x1205
+#define HDMI_FC_DBGAUD2CH1                      0x1206
+#define HDMI_FC_DBGAUD0CH2                      0x1207
+#define HDMI_FC_DBGAUD1CH2                      0x1208
+#define HDMI_FC_DBGAUD2CH2                      0x1209
+#define HDMI_FC_DBGAUD0CH3                      0x120A
+#define HDMI_FC_DBGAUD1CH3                      0x120B
+#define HDMI_FC_DBGAUD2CH3                      0x120C
+#define HDMI_FC_DBGAUD0CH4                      0x120D
+#define HDMI_FC_DBGAUD1CH4                      0x120E
+#define HDMI_FC_DBGAUD2CH4                      0x120F
+#define HDMI_FC_DBGAUD0CH5                      0x1210
+#define HDMI_FC_DBGAUD1CH5                      0x1211
+#define HDMI_FC_DBGAUD2CH5                      0x1212
+#define HDMI_FC_DBGAUD0CH6                      0x1213
+#define HDMI_FC_DBGAUD1CH6                      0x1214
+#define HDMI_FC_DBGAUD2CH6                      0x1215
+#define HDMI_FC_DBGAUD0CH7                      0x1216
+#define HDMI_FC_DBGAUD1CH7                      0x1217
+#define HDMI_FC_DBGAUD2CH7                      0x1218
+#define HDMI_FC_DBGTMDS0                        0x1219
+#define HDMI_FC_DBGTMDS1                        0x121A
+#define HDMI_FC_DBGTMDS2                        0x121B
+
+/* HDMI Source PHY Registers */
+#define HDMI_PHY_CONF0                          0x3000
+#define HDMI_PHY_TST0                           0x3001
+#define HDMI_PHY_TST1                           0x3002
+#define HDMI_PHY_TST2                           0x3003
+#define HDMI_PHY_STAT0                          0x3004
+#define HDMI_PHY_INT0                           0x3005
+#define HDMI_PHY_MASK0                          0x3006
+#define HDMI_PHY_POL0                           0x3007
+
+/* HDMI Master PHY Registers */
+#define HDMI_PHY_I2CM_SLAVE_ADDR                0x3020
+#define HDMI_PHY_I2CM_ADDRESS_ADDR              0x3021
+#define HDMI_PHY_I2CM_DATAO_1_ADDR              0x3022
+#define HDMI_PHY_I2CM_DATAO_0_ADDR              0x3023
+#define HDMI_PHY_I2CM_DATAI_1_ADDR              0x3024
+#define HDMI_PHY_I2CM_DATAI_0_ADDR              0x3025
+#define HDMI_PHY_I2CM_OPERATION_ADDR            0x3026
+#define HDMI_PHY_I2CM_INT_ADDR                  0x3027
+#define HDMI_PHY_I2CM_CTLINT_ADDR               0x3028
+#define HDMI_PHY_I2CM_DIV_ADDR                  0x3029
+#define HDMI_PHY_I2CM_SOFTRSTZ_ADDR             0x302a
+#define HDMI_PHY_I2CM_SS_SCL_HCNT_1_ADDR        0x302b
+#define HDMI_PHY_I2CM_SS_SCL_HCNT_0_ADDR        0x302c
+#define HDMI_PHY_I2CM_SS_SCL_LCNT_1_ADDR        0x302d
+#define HDMI_PHY_I2CM_SS_SCL_LCNT_0_ADDR        0x302e
+#define HDMI_PHY_I2CM_FS_SCL_HCNT_1_ADDR        0x302f
+#define HDMI_PHY_I2CM_FS_SCL_HCNT_0_ADDR        0x3030
+#define HDMI_PHY_I2CM_FS_SCL_LCNT_1_ADDR        0x3031
+#define HDMI_PHY_I2CM_FS_SCL_LCNT_0_ADDR        0x3032
+
+/* Audio Sampler Registers */
+#define HDMI_AUD_CONF0                          0x3100
+#define HDMI_AUD_CONF1                          0x3101
+#define HDMI_AUD_INT                            0x3102
+#define HDMI_AUD_CONF2                          0x3103
+#define HDMI_AUD_N1                             0x3200
+#define HDMI_AUD_N2                             0x3201
+#define HDMI_AUD_N3                             0x3202
+#define HDMI_AUD_CTS1                           0x3203
+#define HDMI_AUD_CTS2                           0x3204
+#define HDMI_AUD_CTS3                           0x3205
+#define HDMI_AUD_INPUTCLKFS                     0x3206
+#define HDMI_AUD_SPDIFINT			0x3302
+#define HDMI_AUD_CONF0_HBR                      0x3400
+#define HDMI_AUD_HBR_STATUS                     0x3401
+#define HDMI_AUD_HBR_INT                        0x3402
+#define HDMI_AUD_HBR_POL                        0x3403
+#define HDMI_AUD_HBR_MASK                       0x3404
+
+/*
+ * Generic Parallel Audio Interface Registers
+ * Not used as GPAUD interface is not enabled in hw
+ */
+#define HDMI_GP_CONF0                           0x3500
+#define HDMI_GP_CONF1                           0x3501
+#define HDMI_GP_CONF2                           0x3502
+#define HDMI_GP_STAT                            0x3503
+#define HDMI_GP_INT                             0x3504
+#define HDMI_GP_MASK                            0x3505
+#define HDMI_GP_POL                             0x3506
+
+/* Audio DMA Registers */
+#define HDMI_AHB_DMA_CONF0                      0x3600
+#define HDMI_AHB_DMA_START                      0x3601
+#define HDMI_AHB_DMA_STOP                       0x3602
+#define HDMI_AHB_DMA_THRSLD                     0x3603
+#define HDMI_AHB_DMA_STRADDR0                   0x3604
+#define HDMI_AHB_DMA_STRADDR1                   0x3605
+#define HDMI_AHB_DMA_STRADDR2                   0x3606
+#define HDMI_AHB_DMA_STRADDR3                   0x3607
+#define HDMI_AHB_DMA_STPADDR0                   0x3608
+#define HDMI_AHB_DMA_STPADDR1                   0x3609
+#define HDMI_AHB_DMA_STPADDR2                   0x360a
+#define HDMI_AHB_DMA_STPADDR3                   0x360b
+#define HDMI_AHB_DMA_BSTADDR0                   0x360c
+#define HDMI_AHB_DMA_BSTADDR1                   0x360d
+#define HDMI_AHB_DMA_BSTADDR2                   0x360e
+#define HDMI_AHB_DMA_BSTADDR3                   0x360f
+#define HDMI_AHB_DMA_MBLENGTH0                  0x3610
+#define HDMI_AHB_DMA_MBLENGTH1                  0x3611
+#define HDMI_AHB_DMA_STAT                       0x3612
+#define HDMI_AHB_DMA_INT                        0x3613
+#define HDMI_AHB_DMA_MASK                       0x3614
+#define HDMI_AHB_DMA_POL                        0x3615
+#define HDMI_AHB_DMA_CONF1                      0x3616
+#define HDMI_AHB_DMA_BUFFSTAT                   0x3617
+#define HDMI_AHB_DMA_BUFFINT                    0x3618
+#define HDMI_AHB_DMA_BUFFMASK                   0x3619
+#define HDMI_AHB_DMA_BUFFPOL                    0x361a
+
+/* Main Controller Registers */
+#define HDMI_MC_SFRDIV                          0x4000
+#define HDMI_MC_CLKDIS                          0x4001
+#define HDMI_MC_SWRSTZ                          0x4002
+#define HDMI_MC_OPCTRL                          0x4003
+#define HDMI_MC_FLOWCTRL                        0x4004
+#define HDMI_MC_PHYRSTZ                         0x4005
+#define HDMI_MC_LOCKONCLOCK                     0x4006
+#define HDMI_MC_HEACPHY_RST                     0x4007
+
+/* Color Space  Converter Registers */
+#define HDMI_CSC_CFG                            0x4100
+#define HDMI_CSC_SCALE                          0x4101
+#define HDMI_CSC_COEF_A1_MSB                    0x4102
+#define HDMI_CSC_COEF_A1_LSB                    0x4103
+#define HDMI_CSC_COEF_A2_MSB                    0x4104
+#define HDMI_CSC_COEF_A2_LSB                    0x4105
+#define HDMI_CSC_COEF_A3_MSB                    0x4106
+#define HDMI_CSC_COEF_A3_LSB                    0x4107
+#define HDMI_CSC_COEF_A4_MSB                    0x4108
+#define HDMI_CSC_COEF_A4_LSB                    0x4109
+#define HDMI_CSC_COEF_B1_MSB                    0x410A
+#define HDMI_CSC_COEF_B1_LSB                    0x410B
+#define HDMI_CSC_COEF_B2_MSB                    0x410C
+#define HDMI_CSC_COEF_B2_LSB                    0x410D
+#define HDMI_CSC_COEF_B3_MSB                    0x410E
+#define HDMI_CSC_COEF_B3_LSB                    0x410F
+#define HDMI_CSC_COEF_B4_MSB                    0x4110
+#define HDMI_CSC_COEF_B4_LSB                    0x4111
+#define HDMI_CSC_COEF_C1_MSB                    0x4112
+#define HDMI_CSC_COEF_C1_LSB                    0x4113
+#define HDMI_CSC_COEF_C2_MSB                    0x4114
+#define HDMI_CSC_COEF_C2_LSB                    0x4115
+#define HDMI_CSC_COEF_C3_MSB                    0x4116
+#define HDMI_CSC_COEF_C3_LSB                    0x4117
+#define HDMI_CSC_COEF_C4_MSB                    0x4118
+#define HDMI_CSC_COEF_C4_LSB                    0x4119
+
+/* HDCP Encryption Engine Registers */
+#define HDMI_A_HDCPCFG0                         0x5000
+#define HDMI_A_HDCPCFG1                         0x5001
+#define HDMI_A_HDCPOBS0                         0x5002
+#define HDMI_A_HDCPOBS1                         0x5003
+#define HDMI_A_HDCPOBS2                         0x5004
+#define HDMI_A_HDCPOBS3                         0x5005
+#define HDMI_A_APIINTCLR                        0x5006
+#define HDMI_A_APIINTSTAT                       0x5007
+#define HDMI_A_APIINTMSK                        0x5008
+#define HDMI_A_VIDPOLCFG                        0x5009
+#define HDMI_A_OESSWCFG                         0x500A
+#define HDMI_A_TIMER1SETUP0                     0x500B
+#define HDMI_A_TIMER1SETUP1                     0x500C
+#define HDMI_A_TIMER2SETUP0                     0x500D
+#define HDMI_A_TIMER2SETUP1                     0x500E
+#define HDMI_A_100MSCFG                         0x500F
+#define HDMI_A_2SCFG0                           0x5010
+#define HDMI_A_2SCFG1                           0x5011
+#define HDMI_A_5SCFG0                           0x5012
+#define HDMI_A_5SCFG1                           0x5013
+#define HDMI_A_SRMVERLSB                        0x5014
+#define HDMI_A_SRMVERMSB                        0x5015
+#define HDMI_A_SRMCTRL                          0x5016
+#define HDMI_A_SFRSETUP                         0x5017
+#define HDMI_A_I2CHSETUP                        0x5018
+#define HDMI_A_INTSETUP                         0x5019
+#define HDMI_A_PRESETUP                         0x501A
+#define HDMI_A_SRM_BASE                         0x5020
+
+/* I2C Master Registers (E-DDC) */
+#define HDMI_I2CM_SLAVE                         0x7E00
+#define HDMI_I2CM_ADDRESS                       0x7E01
+#define HDMI_I2CM_DATAO                         0x7E02
+#define HDMI_I2CM_DATAI                         0x7E03
+#define HDMI_I2CM_OPERATION                     0x7E04
+#define HDMI_I2CM_INT                           0x7E05
+#define HDMI_I2CM_CTLINT                        0x7E06
+#define HDMI_I2CM_DIV                           0x7E07
+#define HDMI_I2CM_SEGADDR                       0x7E08
+#define HDMI_I2CM_SOFTRSTZ                      0x7E09
+#define HDMI_I2CM_SEGPTR                        0x7E0A
+#define HDMI_I2CM_SS_SCL_HCNT_1_ADDR            0x7E0B
+#define HDMI_I2CM_SS_SCL_HCNT_0_ADDR            0x7E0C
+#define HDMI_I2CM_SS_SCL_LCNT_1_ADDR            0x7E0D
+#define HDMI_I2CM_SS_SCL_LCNT_0_ADDR            0x7E0E
+#define HDMI_I2CM_FS_SCL_HCNT_1_ADDR            0x7E0F
+#define HDMI_I2CM_FS_SCL_HCNT_0_ADDR            0x7E10
+#define HDMI_I2CM_FS_SCL_LCNT_1_ADDR            0x7E11
+#define HDMI_I2CM_FS_SCL_LCNT_0_ADDR            0x7E12
+
+enum {
+/* PRODUCT_ID0 field values */
+	HDMI_PRODUCT_ID0_HDMI_TX = 0xa0,
+
+/* PRODUCT_ID1 field values */
+	HDMI_PRODUCT_ID1_HDCP = 0xc0,
+	HDMI_PRODUCT_ID1_HDMI_RX = 0x02,
+	HDMI_PRODUCT_ID1_HDMI_TX = 0x01,
+
+/* CONFIG0_ID field values */
+	HDMI_CONFIG0_I2S = 0x10,
+	HDMI_CONFIG0_CEC = 0x02,
+
+/* CONFIG1_ID field values */
+	HDMI_CONFIG1_AHB = 0x01,
+
+/* CONFIG3_ID field values */
+	HDMI_CONFIG3_AHBAUDDMA = 0x02,
+	HDMI_CONFIG3_GPAUD = 0x01,
+
+/* IH_FC_INT2 field values */
+	HDMI_IH_FC_INT2_OVERFLOW_MASK = 0x03,
+	HDMI_IH_FC_INT2_LOW_PRIORITY_OVERFLOW = 0x02,
+	HDMI_IH_FC_INT2_HIGH_PRIORITY_OVERFLOW = 0x01,
+
+/* IH_FC_STAT2 field values */
+	HDMI_IH_FC_STAT2_OVERFLOW_MASK = 0x03,
+	HDMI_IH_FC_STAT2_LOW_PRIORITY_OVERFLOW = 0x02,
+	HDMI_IH_FC_STAT2_HIGH_PRIORITY_OVERFLOW = 0x01,
+
+/* IH_PHY_STAT0 field values */
+	HDMI_IH_PHY_STAT0_RX_SENSE3 = 0x20,
+	HDMI_IH_PHY_STAT0_RX_SENSE2 = 0x10,
+	HDMI_IH_PHY_STAT0_RX_SENSE1 = 0x8,
+	HDMI_IH_PHY_STAT0_RX_SENSE0 = 0x4,
+	HDMI_IH_PHY_STAT0_TX_PHY_LOCK = 0x2,
+	HDMI_IH_PHY_STAT0_HPD = 0x1,
+
+/* IH_I2CM_STAT0 and IH_MUTE_I2CM_STAT0 field values */
+	HDMI_IH_I2CM_STAT0_DONE = 0x2,
+	HDMI_IH_I2CM_STAT0_ERROR = 0x1,
+
+/* IH_MUTE_I2CMPHY_STAT0 field values */
+	HDMI_IH_MUTE_I2CMPHY_STAT0_I2CMPHYDONE = 0x2,
+	HDMI_IH_MUTE_I2CMPHY_STAT0_I2CMPHYERROR = 0x1,
+
+/* IH_AHBDMAAUD_STAT0 field values */
+	HDMI_IH_AHBDMAAUD_STAT0_ERROR = 0x20,
+	HDMI_IH_AHBDMAAUD_STAT0_LOST = 0x10,
+	HDMI_IH_AHBDMAAUD_STAT0_RETRY = 0x08,
+	HDMI_IH_AHBDMAAUD_STAT0_DONE = 0x04,
+	HDMI_IH_AHBDMAAUD_STAT0_BUFFFULL = 0x02,
+	HDMI_IH_AHBDMAAUD_STAT0_BUFFEMPTY = 0x01,
+
+/* IH_MUTE_FC_STAT2 field values */
+	HDMI_IH_MUTE_FC_STAT2_OVERFLOW_MASK = 0x03,
+	HDMI_IH_MUTE_FC_STAT2_LOW_PRIORITY_OVERFLOW = 0x02,
+	HDMI_IH_MUTE_FC_STAT2_HIGH_PRIORITY_OVERFLOW = 0x01,
+
+/* IH_MUTE_AHBDMAAUD_STAT0 field values */
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_ERROR = 0x20,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_LOST = 0x10,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_RETRY = 0x08,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_DONE = 0x04,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_BUFFFULL = 0x02,
+	HDMI_IH_MUTE_AHBDMAAUD_STAT0_BUFFEMPTY = 0x01,
+
+/* IH_MUTE field values */
+	HDMI_IH_MUTE_MUTE_WAKEUP_INTERRUPT = 0x2,
+	HDMI_IH_MUTE_MUTE_ALL_INTERRUPT = 0x1,
+
+/* TX_INVID0 field values */
+	HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_MASK = 0x80,
+	HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_ENABLE = 0x80,
+	HDMI_TX_INVID0_INTERNAL_DE_GENERATOR_DISABLE = 0x00,
+	HDMI_TX_INVID0_VIDEO_MAPPING_MASK = 0x1F,
+	HDMI_TX_INVID0_VIDEO_MAPPING_OFFSET = 0,
+
+/* TX_INSTUFFING field values */
+	HDMI_TX_INSTUFFING_BDBDATA_STUFFING_MASK = 0x4,
+	HDMI_TX_INSTUFFING_BDBDATA_STUFFING_ENABLE = 0x4,
+	HDMI_TX_INSTUFFING_BDBDATA_STUFFING_DISABLE = 0x0,
+	HDMI_TX_INSTUFFING_RCRDATA_STUFFING_MASK = 0x2,
+	HDMI_TX_INSTUFFING_RCRDATA_STUFFING_ENABLE = 0x2,
+	HDMI_TX_INSTUFFING_RCRDATA_STUFFING_DISABLE = 0x0,
+	HDMI_TX_INSTUFFING_GYDATA_STUFFING_MASK = 0x1,
+	HDMI_TX_INSTUFFING_GYDATA_STUFFING_ENABLE = 0x1,
+	HDMI_TX_INSTUFFING_GYDATA_STUFFING_DISABLE = 0x0,
+
+/* VP_PR_CD field values */
+	HDMI_VP_PR_CD_COLOR_DEPTH_MASK = 0xF0,
+	HDMI_VP_PR_CD_COLOR_DEPTH_OFFSET = 4,
+	HDMI_VP_PR_CD_DESIRED_PR_FACTOR_MASK = 0x0F,
+	HDMI_VP_PR_CD_DESIRED_PR_FACTOR_OFFSET = 0,
+
+/* VP_STUFF field values */
+	HDMI_VP_STUFF_IDEFAULT_PHASE_MASK = 0x20,
+	HDMI_VP_STUFF_IDEFAULT_PHASE_OFFSET = 5,
+	HDMI_VP_STUFF_IFIX_PP_TO_LAST_MASK = 0x10,
+	HDMI_VP_STUFF_IFIX_PP_TO_LAST_OFFSET = 4,
+	HDMI_VP_STUFF_ICX_GOTO_P0_ST_MASK = 0x8,
+	HDMI_VP_STUFF_ICX_GOTO_P0_ST_OFFSET = 3,
+	HDMI_VP_STUFF_YCC422_STUFFING_MASK = 0x4,
+	HDMI_VP_STUFF_YCC422_STUFFING_STUFFING_MODE = 0x4,
+	HDMI_VP_STUFF_YCC422_STUFFING_DIRECT_MODE = 0x0,
+	HDMI_VP_STUFF_PP_STUFFING_MASK = 0x2,
+	HDMI_VP_STUFF_PP_STUFFING_STUFFING_MODE = 0x2,
+	HDMI_VP_STUFF_PP_STUFFING_DIRECT_MODE = 0x0,
+	HDMI_VP_STUFF_PR_STUFFING_MASK = 0x1,
+	HDMI_VP_STUFF_PR_STUFFING_STUFFING_MODE = 0x1,
+	HDMI_VP_STUFF_PR_STUFFING_DIRECT_MODE = 0x0,
+
+/* VP_CONF field values */
+	HDMI_VP_CONF_BYPASS_EN_MASK = 0x40,
+	HDMI_VP_CONF_BYPASS_EN_ENABLE = 0x40,
+	HDMI_VP_CONF_BYPASS_EN_DISABLE = 0x00,
+	HDMI_VP_CONF_PP_EN_ENMASK = 0x20,
+	HDMI_VP_CONF_PP_EN_ENABLE = 0x20,
+	HDMI_VP_CONF_PP_EN_DISABLE = 0x00,
+	HDMI_VP_CONF_PR_EN_MASK = 0x10,
+	HDMI_VP_CONF_PR_EN_ENABLE = 0x10,
+	HDMI_VP_CONF_PR_EN_DISABLE = 0x00,
+	HDMI_VP_CONF_YCC422_EN_MASK = 0x8,
+	HDMI_VP_CONF_YCC422_EN_ENABLE = 0x8,
+	HDMI_VP_CONF_YCC422_EN_DISABLE = 0x0,
+	HDMI_VP_CONF_BYPASS_SELECT_MASK = 0x4,
+	HDMI_VP_CONF_BYPASS_SELECT_VID_PACKETIZER = 0x4,
+	HDMI_VP_CONF_BYPASS_SELECT_PIX_REPEATER = 0x0,
+	HDMI_VP_CONF_OUTPUT_SELECTOR_MASK = 0x3,
+	HDMI_VP_CONF_OUTPUT_SELECTOR_BYPASS = 0x3,
+	HDMI_VP_CONF_OUTPUT_SELECTOR_YCC422 = 0x1,
+	HDMI_VP_CONF_OUTPUT_SELECTOR_PP = 0x0,
+
+/* VP_REMAP field values */
+	HDMI_VP_REMAP_MASK = 0x3,
+	HDMI_VP_REMAP_YCC422_24bit = 0x2,
+	HDMI_VP_REMAP_YCC422_20bit = 0x1,
+	HDMI_VP_REMAP_YCC422_16bit = 0x0,
+
+/* FC_INVIDCONF field values */
+	HDMI_FC_INVIDCONF_HDCP_KEEPOUT_MASK = 0x80,
+	HDMI_FC_INVIDCONF_HDCP_KEEPOUT_ACTIVE = 0x80,
+	HDMI_FC_INVIDCONF_HDCP_KEEPOUT_INACTIVE = 0x00,
+	HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_MASK = 0x40,
+	HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_HIGH = 0x40,
+	HDMI_FC_INVIDCONF_VSYNC_IN_POLARITY_ACTIVE_LOW = 0x00,
+	HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_MASK = 0x20,
+	HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_HIGH = 0x20,
+	HDMI_FC_INVIDCONF_HSYNC_IN_POLARITY_ACTIVE_LOW = 0x00,
+	HDMI_FC_INVIDCONF_DE_IN_POLARITY_MASK = 0x10,
+	HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_HIGH = 0x10,
+	HDMI_FC_INVIDCONF_DE_IN_POLARITY_ACTIVE_LOW = 0x00,
+	HDMI_FC_INVIDCONF_DVI_MODEZ_MASK = 0x8,
+	HDMI_FC_INVIDCONF_DVI_MODEZ_HDMI_MODE = 0x8,
+	HDMI_FC_INVIDCONF_DVI_MODEZ_DVI_MODE = 0x0,
+	HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_MASK = 0x2,
+	HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_HIGH = 0x2,
+	HDMI_FC_INVIDCONF_R_V_BLANK_IN_OSC_ACTIVE_LOW = 0x0,
+	HDMI_FC_INVIDCONF_IN_I_P_MASK = 0x1,
+	HDMI_FC_INVIDCONF_IN_I_P_INTERLACED = 0x1,
+	HDMI_FC_INVIDCONF_IN_I_P_PROGRESSIVE = 0x0,
+
+/* FC_AUDICONF0 field values */
+	HDMI_FC_AUDICONF0_CC_OFFSET = 4,
+	HDMI_FC_AUDICONF0_CC_MASK = 0x70,
+	HDMI_FC_AUDICONF0_CT_OFFSET = 0,
+	HDMI_FC_AUDICONF0_CT_MASK = 0xF,
+
+/* FC_AUDICONF1 field values */
+	HDMI_FC_AUDICONF1_SS_OFFSET = 3,
+	HDMI_FC_AUDICONF1_SS_MASK = 0x18,
+	HDMI_FC_AUDICONF1_SF_OFFSET = 0,
+	HDMI_FC_AUDICONF1_SF_MASK = 0x7,
+
+/* FC_AUDICONF3 field values */
+	HDMI_FC_AUDICONF3_LFEPBL_OFFSET = 5,
+	HDMI_FC_AUDICONF3_LFEPBL_MASK = 0x60,
+	HDMI_FC_AUDICONF3_DM_INH_OFFSET = 4,
+	HDMI_FC_AUDICONF3_DM_INH_MASK = 0x10,
+	HDMI_FC_AUDICONF3_LSV_OFFSET = 0,
+	HDMI_FC_AUDICONF3_LSV_MASK = 0xF,
+
+/* FC_AUDSCHNLS0 field values */
+	HDMI_FC_AUDSCHNLS0_CGMSA_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS0_CGMSA_MASK = 0x30,
+	HDMI_FC_AUDSCHNLS0_COPYRIGHT_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS0_COPYRIGHT_MASK = 0x01,
+
+/* FC_AUDSCHNLS3-6 field values */
+	HDMI_FC_AUDSCHNLS3_OIEC_CH0_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS3_OIEC_CH0_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS3_OIEC_CH1_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS3_OIEC_CH1_MASK = 0xf0,
+	HDMI_FC_AUDSCHNLS4_OIEC_CH2_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS4_OIEC_CH2_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS4_OIEC_CH3_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS4_OIEC_CH3_MASK = 0xf0,
+
+	HDMI_FC_AUDSCHNLS5_OIEC_CH0_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS5_OIEC_CH0_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS5_OIEC_CH1_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS5_OIEC_CH1_MASK = 0xf0,
+	HDMI_FC_AUDSCHNLS6_OIEC_CH2_OFFSET = 0,
+	HDMI_FC_AUDSCHNLS6_OIEC_CH2_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS6_OIEC_CH3_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS6_OIEC_CH3_MASK = 0xf0,
+
+/* HDMI_FC_AUDSCHNLS7 field values */
+	HDMI_FC_AUDSCHNLS7_ACCURACY_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS7_ACCURACY_MASK = 0x30,
+
+/* HDMI_FC_AUDSCHNLS8 field values */
+	HDMI_FC_AUDSCHNLS8_ORIGSAMPFREQ_MASK = 0xf0,
+	HDMI_FC_AUDSCHNLS8_ORIGSAMPFREQ_OFFSET = 4,
+	HDMI_FC_AUDSCHNLS8_WORDLEGNTH_MASK = 0x0f,
+	HDMI_FC_AUDSCHNLS8_WORDLEGNTH_OFFSET = 0,
+
+/* FC_AUDSCONF field values */
+	HDMI_FC_AUDSCONF_AUD_PACKET_SAMPFIT_MASK = 0xF0,
+	HDMI_FC_AUDSCONF_AUD_PACKET_SAMPFIT_OFFSET = 4,
+	HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_MASK = 0x1,
+	HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_OFFSET = 0,
+	HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_LAYOUT1 = 0x1,
+	HDMI_FC_AUDSCONF_AUD_PACKET_LAYOUT_LAYOUT0 = 0x0,
+
+/* FC_STAT2 field values */
+	HDMI_FC_STAT2_OVERFLOW_MASK = 0x03,
+	HDMI_FC_STAT2_LOW_PRIORITY_OVERFLOW = 0x02,
+	HDMI_FC_STAT2_HIGH_PRIORITY_OVERFLOW = 0x01,
+
+/* FC_INT2 field values */
+	HDMI_FC_INT2_OVERFLOW_MASK = 0x03,
+	HDMI_FC_INT2_LOW_PRIORITY_OVERFLOW = 0x02,
+	HDMI_FC_INT2_HIGH_PRIORITY_OVERFLOW = 0x01,
+
+/* FC_MASK2 field values */
+	HDMI_FC_MASK2_OVERFLOW_MASK = 0x03,
+	HDMI_FC_MASK2_LOW_PRIORITY_OVERFLOW = 0x02,
+	HDMI_FC_MASK2_HIGH_PRIORITY_OVERFLOW = 0x01,
+
+/* FC_PRCONF field values */
+	HDMI_FC_PRCONF_INCOMING_PR_FACTOR_MASK = 0xF0,
+	HDMI_FC_PRCONF_INCOMING_PR_FACTOR_OFFSET = 4,
+	HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_MASK = 0x0F,
+	HDMI_FC_PRCONF_OUTPUT_PR_FACTOR_OFFSET = 0,
+
+/* FC_PACKET_TX_EN field values */
+	HDMI_FC_PACKET_TX_EN_DRM_MASK = 0x80,
+	HDMI_FC_PACKET_TX_EN_DRM_ENABLE = 0x80,
+	HDMI_FC_PACKET_TX_EN_DRM_DISABLE = 0x00,
+
+/* FC_AVICONF0-FC_AVICONF3 field values */
+	HDMI_FC_AVICONF0_PIX_FMT_MASK = 0x03,
+	HDMI_FC_AVICONF0_PIX_FMT_RGB = 0x00,
+	HDMI_FC_AVICONF0_PIX_FMT_YCBCR422 = 0x01,
+	HDMI_FC_AVICONF0_PIX_FMT_YCBCR444 = 0x02,
+	HDMI_FC_AVICONF0_ACTIVE_FMT_MASK = 0x40,
+	HDMI_FC_AVICONF0_ACTIVE_FMT_INFO_PRESENT = 0x40,
+	HDMI_FC_AVICONF0_ACTIVE_FMT_NO_INFO = 0x00,
+	HDMI_FC_AVICONF0_BAR_DATA_MASK = 0x0C,
+	HDMI_FC_AVICONF0_BAR_DATA_NO_DATA = 0x00,
+	HDMI_FC_AVICONF0_BAR_DATA_VERT_BAR = 0x04,
+	HDMI_FC_AVICONF0_BAR_DATA_HORIZ_BAR = 0x08,
+	HDMI_FC_AVICONF0_BAR_DATA_VERT_HORIZ_BAR = 0x0C,
+	HDMI_FC_AVICONF0_SCAN_INFO_MASK = 0x30,
+	HDMI_FC_AVICONF0_SCAN_INFO_OVERSCAN = 0x10,
+	HDMI_FC_AVICONF0_SCAN_INFO_UNDERSCAN = 0x20,
+	HDMI_FC_AVICONF0_SCAN_INFO_NODATA = 0x00,
+
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_MASK = 0x0F,
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_USE_CODED = 0x08,
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_4_3 = 0x09,
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_16_9 = 0x0A,
+	HDMI_FC_AVICONF1_ACTIVE_ASPECT_RATIO_14_9 = 0x0B,
+	HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_MASK = 0x30,
+	HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_NO_DATA = 0x00,
+	HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_4_3 = 0x10,
+	HDMI_FC_AVICONF1_CODED_ASPECT_RATIO_16_9 = 0x20,
+	HDMI_FC_AVICONF1_COLORIMETRY_MASK = 0xC0,
+	HDMI_FC_AVICONF1_COLORIMETRY_NO_DATA = 0x00,
+	HDMI_FC_AVICONF1_COLORIMETRY_SMPTE = 0x40,
+	HDMI_FC_AVICONF1_COLORIMETRY_ITUR = 0x80,
+	HDMI_FC_AVICONF1_COLORIMETRY_EXTENDED_INFO = 0xC0,
+
+	HDMI_FC_AVICONF2_SCALING_MASK = 0x03,
+	HDMI_FC_AVICONF2_SCALING_NONE = 0x00,
+	HDMI_FC_AVICONF2_SCALING_HORIZ = 0x01,
+	HDMI_FC_AVICONF2_SCALING_VERT = 0x02,
+	HDMI_FC_AVICONF2_SCALING_HORIZ_VERT = 0x03,
+	HDMI_FC_AVICONF2_RGB_QUANT_MASK = 0x0C,
+	HDMI_FC_AVICONF2_RGB_QUANT_DEFAULT = 0x00,
+	HDMI_FC_AVICONF2_RGB_QUANT_LIMITED_RANGE = 0x04,
+	HDMI_FC_AVICONF2_RGB_QUANT_FULL_RANGE = 0x08,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_MASK = 0x70,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC601 = 0x00,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_XVYCC709 = 0x10,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_SYCC601 = 0x20,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_ADOBE_YCC601 = 0x30,
+	HDMI_FC_AVICONF2_EXT_COLORIMETRY_ADOBE_RGB = 0x40,
+	HDMI_FC_AVICONF2_IT_CONTENT_MASK = 0x80,
+	HDMI_FC_AVICONF2_IT_CONTENT_NO_DATA = 0x00,
+	HDMI_FC_AVICONF2_IT_CONTENT_VALID = 0x80,
+
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_MASK = 0x03,
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_GRAPHICS = 0x00,
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_PHOTO = 0x01,
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_CINEMA = 0x02,
+	HDMI_FC_AVICONF3_IT_CONTENT_TYPE_GAME = 0x03,
+	HDMI_FC_AVICONF3_QUANT_RANGE_MASK = 0x0C,
+	HDMI_FC_AVICONF3_QUANT_RANGE_LIMITED = 0x00,
+	HDMI_FC_AVICONF3_QUANT_RANGE_FULL = 0x04,
+
+/* FC_DBGFORCE field values */
+	HDMI_FC_DBGFORCE_FORCEAUDIO = 0x10,
+	HDMI_FC_DBGFORCE_FORCEVIDEO = 0x1,
+
+/* FC_DATAUTO0 field values */
+	HDMI_FC_DATAUTO0_VSD_MASK = 0x08,
+	HDMI_FC_DATAUTO0_VSD_OFFSET = 3,
+
+/* FC_DATAUTO3 field values */
+	HDMI_FC_DATAUTO3_GCP_AUTO = 0x04,
+
+/* PHY_CONF0 field values */
+	HDMI_PHY_CONF0_PDZ_MASK = 0x80,
+	HDMI_PHY_CONF0_PDZ_OFFSET = 7,
+	HDMI_PHY_CONF0_ENTMDS_MASK = 0x40,
+	HDMI_PHY_CONF0_ENTMDS_OFFSET = 6,
+	HDMI_PHY_CONF0_SVSRET_MASK = 0x20,
+	HDMI_PHY_CONF0_SVSRET_OFFSET = 5,
+	HDMI_PHY_CONF0_GEN2_PDDQ_MASK = 0x10,
+	HDMI_PHY_CONF0_GEN2_PDDQ_OFFSET = 4,
+	HDMI_PHY_CONF0_GEN2_TXPWRON_MASK = 0x8,
+	HDMI_PHY_CONF0_GEN2_TXPWRON_OFFSET = 3,
+	HDMI_PHY_CONF0_GEN2_ENHPDRXSENSE_MASK = 0x4,
+	HDMI_PHY_CONF0_GEN2_ENHPDRXSENSE_OFFSET = 2,
+	HDMI_PHY_CONF0_SELDATAENPOL_MASK = 0x2,
+	HDMI_PHY_CONF0_SELDATAENPOL_OFFSET = 1,
+	HDMI_PHY_CONF0_SELDIPIF_MASK = 0x1,
+	HDMI_PHY_CONF0_SELDIPIF_OFFSET = 0,
+
+/* PHY_TST0 field values */
+	HDMI_PHY_TST0_TSTCLR_MASK = 0x20,
+	HDMI_PHY_TST0_TSTCLR_OFFSET = 5,
+	HDMI_PHY_TST0_TSTEN_MASK = 0x10,
+	HDMI_PHY_TST0_TSTEN_OFFSET = 4,
+	HDMI_PHY_TST0_TSTCLK_MASK = 0x1,
+	HDMI_PHY_TST0_TSTCLK_OFFSET = 0,
+
+/* PHY_STAT0 field values */
+	HDMI_PHY_RX_SENSE3 = 0x80,
+	HDMI_PHY_RX_SENSE2 = 0x40,
+	HDMI_PHY_RX_SENSE1 = 0x20,
+	HDMI_PHY_RX_SENSE0 = 0x10,
+	HDMI_PHY_HPD = 0x02,
+	HDMI_PHY_TX_PHY_LOCK = 0x01,
+
+/* PHY_I2CM_SLAVE_ADDR field values */
+	HDMI_PHY_I2CM_SLAVE_ADDR_PHY_GEN2 = 0x69,
+	HDMI_PHY_I2CM_SLAVE_ADDR_HEAC_PHY = 0x49,
+
+/* PHY_I2CM_OPERATION_ADDR field values */
+	HDMI_PHY_I2CM_OPERATION_ADDR_WRITE = 0x10,
+	HDMI_PHY_I2CM_OPERATION_ADDR_READ = 0x1,
+
+/* HDMI_PHY_I2CM_INT_ADDR */
+	HDMI_PHY_I2CM_INT_ADDR_DONE_POL = 0x08,
+	HDMI_PHY_I2CM_INT_ADDR_DONE_MASK = 0x04,
+
+/* HDMI_PHY_I2CM_CTLINT_ADDR */
+	HDMI_PHY_I2CM_CTLINT_ADDR_NAC_POL = 0x80,
+	HDMI_PHY_I2CM_CTLINT_ADDR_NAC_MASK = 0x40,
+	HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_POL = 0x08,
+	HDMI_PHY_I2CM_CTLINT_ADDR_ARBITRATION_MASK = 0x04,
+
+/* AUD_CONF0 field values */
+	HDMI_AUD_CONF0_SW_RESET = 0x80,
+	HDMI_AUD_CONF0_I2S_SELECT = 0x20,
+	HDMI_AUD_CONF0_I2S_EN3 = 0x08,
+	HDMI_AUD_CONF0_I2S_EN2 = 0x04,
+	HDMI_AUD_CONF0_I2S_EN1 = 0x02,
+	HDMI_AUD_CONF0_I2S_EN0 = 0x01,
+
+/* AUD_CONF1 field values */
+	HDMI_AUD_CONF1_MODE_I2S = 0x00,
+	HDMI_AUD_CONF1_MODE_RIGHT_J = 0x20,
+	HDMI_AUD_CONF1_MODE_LEFT_J = 0x40,
+	HDMI_AUD_CONF1_MODE_BURST_1 = 0x60,
+	HDMI_AUD_CONF1_MODE_BURST_2 = 0x80,
+	HDMI_AUD_CONF1_WIDTH_16 = 0x10,
+	HDMI_AUD_CONF1_WIDTH_24 = 0x18,
+
+/* AUD_CTS3 field values */
+	HDMI_AUD_CTS3_N_SHIFT_OFFSET = 5,
+	HDMI_AUD_CTS3_N_SHIFT_MASK = 0xe0,
+	HDMI_AUD_CTS3_N_SHIFT_1 = 0,
+	HDMI_AUD_CTS3_N_SHIFT_16 = 0x20,
+	HDMI_AUD_CTS3_N_SHIFT_32 = 0x40,
+	HDMI_AUD_CTS3_N_SHIFT_64 = 0x60,
+	HDMI_AUD_CTS3_N_SHIFT_128 = 0x80,
+	HDMI_AUD_CTS3_N_SHIFT_256 = 0xa0,
+	/* note that the CTS3 MANUAL bit has been removed
+	   from our part. Can't set it, will read as 0. */
+	HDMI_AUD_CTS3_CTS_MANUAL = 0x10,
+	HDMI_AUD_CTS3_AUDCTS19_16_MASK = 0x0f,
+
+/* HDMI_AUD_INPUTCLKFS field values */
+	HDMI_AUD_INPUTCLKFS_128FS = 0,
+	HDMI_AUD_INPUTCLKFS_256FS = 1,
+	HDMI_AUD_INPUTCLKFS_512FS = 2,
+	HDMI_AUD_INPUTCLKFS_64FS = 4,
+
+/* AHB_DMA_CONF0 field values */
+	HDMI_AHB_DMA_CONF0_SW_FIFO_RST_OFFSET = 7,
+	HDMI_AHB_DMA_CONF0_SW_FIFO_RST_MASK = 0x80,
+	HDMI_AHB_DMA_CONF0_HBR = 0x10,
+	HDMI_AHB_DMA_CONF0_EN_HLOCK_OFFSET = 3,
+	HDMI_AHB_DMA_CONF0_EN_HLOCK_MASK = 0x08,
+	HDMI_AHB_DMA_CONF0_INCR_TYPE_OFFSET = 1,
+	HDMI_AHB_DMA_CONF0_INCR_TYPE_MASK = 0x06,
+	HDMI_AHB_DMA_CONF0_INCR4 = 0x0,
+	HDMI_AHB_DMA_CONF0_INCR8 = 0x2,
+	HDMI_AHB_DMA_CONF0_INCR16 = 0x4,
+	HDMI_AHB_DMA_CONF0_BURST_MODE = 0x1,
+
+/* HDMI_AHB_DMA_START field values */
+	HDMI_AHB_DMA_START_START_OFFSET = 0,
+	HDMI_AHB_DMA_START_START_MASK = 0x01,
+
+/* HDMI_AHB_DMA_STOP field values */
+	HDMI_AHB_DMA_STOP_STOP_OFFSET = 0,
+	HDMI_AHB_DMA_STOP_STOP_MASK = 0x01,
+
+/* AHB_DMA_STAT, AHB_DMA_INT, AHB_DMA_MASK, AHB_DMA_POL field values */
+	HDMI_AHB_DMA_DONE = 0x80,
+	HDMI_AHB_DMA_RETRY_SPLIT = 0x40,
+	HDMI_AHB_DMA_LOSTOWNERSHIP = 0x20,
+	HDMI_AHB_DMA_ERROR = 0x10,
+	HDMI_AHB_DMA_FIFO_THREMPTY = 0x04,
+	HDMI_AHB_DMA_FIFO_FULL = 0x02,
+	HDMI_AHB_DMA_FIFO_EMPTY = 0x01,
+
+/* AHB_DMA_BUFFSTAT, AHB_DMA_BUFFINT,AHB_DMA_BUFFMASK,AHB_DMA_BUFFPOL values */
+	HDMI_AHB_DMA_BUFFSTAT_FULL = 0x02,
+	HDMI_AHB_DMA_BUFFSTAT_EMPTY = 0x01,
+
+/* MC_CLKDIS field values */
+	HDMI_MC_CLKDIS_HDCPCLK_DISABLE = 0x40,
+	HDMI_MC_CLKDIS_CECCLK_DISABLE = 0x20,
+	HDMI_MC_CLKDIS_CSCCLK_DISABLE = 0x10,
+	HDMI_MC_CLKDIS_AUDCLK_DISABLE = 0x8,
+	HDMI_MC_CLKDIS_PREPCLK_DISABLE = 0x4,
+	HDMI_MC_CLKDIS_TMDSCLK_DISABLE = 0x2,
+	HDMI_MC_CLKDIS_PIXELCLK_DISABLE = 0x1,
+
+/* MC_SWRSTZ field values */
+	HDMI_MC_SWRSTZ_I2SSWRST_REQ = 0x08,
+	HDMI_MC_SWRSTZ_TMDSSWRST_REQ = 0x02,
+
+/* MC_FLOWCTRL field values */
+	HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_MASK = 0x1,
+	HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_IN_PATH = 0x1,
+	HDMI_MC_FLOWCTRL_FEED_THROUGH_OFF_CSC_BYPASS = 0x0,
+
+/* MC_PHYRSTZ field values */
+	HDMI_MC_PHYRSTZ_PHYRSTZ = 0x01,
+
+/* MC_HEACPHY_RST field values */
+	HDMI_MC_HEACPHY_RST_ASSERT = 0x1,
+	HDMI_MC_HEACPHY_RST_DEASSERT = 0x0,
+
+/* CSC_CFG field values */
+	HDMI_CSC_CFG_INTMODE_MASK = 0x30,
+	HDMI_CSC_CFG_INTMODE_OFFSET = 4,
+	HDMI_CSC_CFG_INTMODE_DISABLE = 0x00,
+	HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA1 = 0x10,
+	HDMI_CSC_CFG_INTMODE_CHROMA_INT_FORMULA2 = 0x20,
+	HDMI_CSC_CFG_DECMODE_MASK = 0x3,
+	HDMI_CSC_CFG_DECMODE_OFFSET = 0,
+	HDMI_CSC_CFG_DECMODE_DISABLE = 0x0,
+	HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA1 = 0x1,
+	HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA2 = 0x2,
+	HDMI_CSC_CFG_DECMODE_CHROMA_INT_FORMULA3 = 0x3,
+
+/* CSC_SCALE field values */
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_MASK = 0xF0,
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_24BPP = 0x00,
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_30BPP = 0x50,
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_36BPP = 0x60,
+	HDMI_CSC_SCALE_CSC_COLORDE_PTH_48BPP = 0x70,
+	HDMI_CSC_SCALE_CSCSCALE_MASK = 0x03,
+
+/* A_HDCPCFG0 field values */
+	HDMI_A_HDCPCFG0_ELVENA_MASK = 0x80,
+	HDMI_A_HDCPCFG0_ELVENA_ENABLE = 0x80,
+	HDMI_A_HDCPCFG0_ELVENA_DISABLE = 0x00,
+	HDMI_A_HDCPCFG0_I2CFASTMODE_MASK = 0x40,
+	HDMI_A_HDCPCFG0_I2CFASTMODE_ENABLE = 0x40,
+	HDMI_A_HDCPCFG0_I2CFASTMODE_DISABLE = 0x00,
+	HDMI_A_HDCPCFG0_BYPENCRYPTION_MASK = 0x20,
+	HDMI_A_HDCPCFG0_BYPENCRYPTION_ENABLE = 0x20,
+	HDMI_A_HDCPCFG0_BYPENCRYPTION_DISABLE = 0x00,
+	HDMI_A_HDCPCFG0_SYNCRICHECK_MASK = 0x10,
+	HDMI_A_HDCPCFG0_SYNCRICHECK_ENABLE = 0x10,
+	HDMI_A_HDCPCFG0_SYNCRICHECK_DISABLE = 0x00,
+	HDMI_A_HDCPCFG0_AVMUTE_MASK = 0x8,
+	HDMI_A_HDCPCFG0_AVMUTE_ENABLE = 0x8,
+	HDMI_A_HDCPCFG0_AVMUTE_DISABLE = 0x0,
+	HDMI_A_HDCPCFG0_RXDETECT_MASK = 0x4,
+	HDMI_A_HDCPCFG0_RXDETECT_ENABLE = 0x4,
+	HDMI_A_HDCPCFG0_RXDETECT_DISABLE = 0x0,
+	HDMI_A_HDCPCFG0_EN11FEATURE_MASK = 0x2,
+	HDMI_A_HDCPCFG0_EN11FEATURE_ENABLE = 0x2,
+	HDMI_A_HDCPCFG0_EN11FEATURE_DISABLE = 0x0,
+	HDMI_A_HDCPCFG0_HDMIDVI_MASK = 0x1,
+	HDMI_A_HDCPCFG0_HDMIDVI_HDMI = 0x1,
+	HDMI_A_HDCPCFG0_HDMIDVI_DVI = 0x0,
+
+/* A_HDCPCFG1 field values */
+	HDMI_A_HDCPCFG1_DISSHA1CHECK_MASK = 0x8,
+	HDMI_A_HDCPCFG1_DISSHA1CHECK_DISABLE = 0x8,
+	HDMI_A_HDCPCFG1_DISSHA1CHECK_ENABLE = 0x0,
+	HDMI_A_HDCPCFG1_PH2UPSHFTENC_MASK = 0x4,
+	HDMI_A_HDCPCFG1_PH2UPSHFTENC_ENABLE = 0x4,
+	HDMI_A_HDCPCFG1_PH2UPSHFTENC_DISABLE = 0x0,
+	HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_MASK = 0x2,
+	HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_DISABLE = 0x2,
+	HDMI_A_HDCPCFG1_ENCRYPTIONDISABLE_ENABLE = 0x0,
+	HDMI_A_HDCPCFG1_SWRESET_MASK = 0x1,
+	HDMI_A_HDCPCFG1_SWRESET_ASSERT = 0x0,
+
+/* A_VIDPOLCFG field values */
+	HDMI_A_VIDPOLCFG_UNENCRYPTCONF_MASK = 0x60,
+	HDMI_A_VIDPOLCFG_UNENCRYPTCONF_OFFSET = 5,
+	HDMI_A_VIDPOLCFG_DATAENPOL_MASK = 0x10,
+	HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_HIGH = 0x10,
+	HDMI_A_VIDPOLCFG_DATAENPOL_ACTIVE_LOW = 0x0,
+	HDMI_A_VIDPOLCFG_VSYNCPOL_MASK = 0x8,
+	HDMI_A_VIDPOLCFG_VSYNCPOL_ACTIVE_HIGH = 0x8,
+	HDMI_A_VIDPOLCFG_VSYNCPOL_ACTIVE_LOW = 0x0,
+	HDMI_A_VIDPOLCFG_HSYNCPOL_MASK = 0x2,
+	HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_HIGH = 0x2,
+	HDMI_A_VIDPOLCFG_HSYNCPOL_ACTIVE_LOW = 0x0,
+
+/* I2CM_OPERATION field values */
+	HDMI_I2CM_OPERATION_WRITE = 0x10,
+	HDMI_I2CM_OPERATION_READ_EXT = 0x2,
+	HDMI_I2CM_OPERATION_READ = 0x1,
+
+/* I2CM_INT field values */
+	HDMI_I2CM_INT_DONE_POL = 0x8,
+	HDMI_I2CM_INT_DONE_MASK = 0x4,
+
+/* I2CM_CTLINT field values */
+	HDMI_I2CM_CTLINT_NAC_POL = 0x80,
+	HDMI_I2CM_CTLINT_NAC_MASK = 0x40,
+	HDMI_I2CM_CTLINT_ARB_POL = 0x8,
+	HDMI_I2CM_CTLINT_ARB_MASK = 0x4,
+};
+
+/*
+ * HDMI 3D TX PHY registers
+ */
+#define HDMI_3D_TX_PHY_PWRCTRL			0x00
+#define HDMI_3D_TX_PHY_SERDIVCTRL		0x01
+#define HDMI_3D_TX_PHY_SERCKCTRL		0x02
+#define HDMI_3D_TX_PHY_SERCKKILLCTRL		0x03
+#define HDMI_3D_TX_PHY_TXRESCTRL		0x04
+#define HDMI_3D_TX_PHY_CKCALCTRL		0x05
+#define HDMI_3D_TX_PHY_CPCE_CTRL		0x06
+#define HDMI_3D_TX_PHY_TXCLKMEASCTRL		0x07
+#define HDMI_3D_TX_PHY_TXMEASCTRL		0x08
+#define HDMI_3D_TX_PHY_CKSYMTXCTRL		0x09
+#define HDMI_3D_TX_PHY_CMPSEQCTRL		0x0a
+#define HDMI_3D_TX_PHY_CMPPWRCTRL		0x0b
+#define HDMI_3D_TX_PHY_CMPMODECTRL		0x0c
+#define HDMI_3D_TX_PHY_MEASCTRL			0x0d
+#define HDMI_3D_TX_PHY_VLEVCTRL			0x0e
+#define HDMI_3D_TX_PHY_D2ACTRL			0x0f
+#define HDMI_3D_TX_PHY_CURRCTRL			0x10
+#define HDMI_3D_TX_PHY_DRVANACTRL		0x11
+#define HDMI_3D_TX_PHY_PLLMEASCTRL		0x12
+#define HDMI_3D_TX_PHY_PLLPHBYCTRL		0x13
+#define HDMI_3D_TX_PHY_GRP_CTRL			0x14
+#define HDMI_3D_TX_PHY_GMPCTRL			0x15
+#define HDMI_3D_TX_PHY_MPLLMEASCTRL		0x16
+#define HDMI_3D_TX_PHY_MSM_CTRL			0x17
+#define HDMI_3D_TX_PHY_SCRPB_STATUS		0x18
+#define HDMI_3D_TX_PHY_TXTERM			0x19
+#define HDMI_3D_TX_PHY_PTRPT_ENBL		0x1a
+#define HDMI_3D_TX_PHY_PATTERNGEN		0x1b
+#define HDMI_3D_TX_PHY_SDCAP_MODE		0x1c
+#define HDMI_3D_TX_PHY_SCOPEMODE		0x1d
+#define HDMI_3D_TX_PHY_DIGTXMODE		0x1e
+#define HDMI_3D_TX_PHY_STR_STATUS		0x1f
+#define HDMI_3D_TX_PHY_SCOPECNT0		0x20
+#define HDMI_3D_TX_PHY_SCOPECNT1		0x21
+#define HDMI_3D_TX_PHY_SCOPECNT2		0x22
+#define HDMI_3D_TX_PHY_SCOPECNTCLK		0x23
+#define HDMI_3D_TX_PHY_SCOPESAMPLE		0x24
+#define HDMI_3D_TX_PHY_SCOPECNTMSB01		0x25
+#define HDMI_3D_TX_PHY_SCOPECNTMSB2CK		0x26
+
+/* HDMI_3D_TX_PHY_CKCALCTRL values */
+#define HDMI_3D_TX_PHY_CKCALCTRL_OVERRIDE		BIT(15)
+
+/* HDMI_3D_TX_PHY_MSM_CTRL values */
+#define HDMI_3D_TX_PHY_MSM_CTRL_MPLL_PH_SEL_CK		BIT(13)
+#define HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_CLK_REF_MPLL	(0 << 1)
+#define HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_OFF		(1 << 1)
+#define HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_PCLK		(2 << 1)
+#define HDMI_3D_TX_PHY_MSM_CTRL_CKO_SEL_FB_CLK		(3 << 1)
+#define HDMI_3D_TX_PHY_MSM_CTRL_SCOPE_CK_SEL		BIT(0)
+
+/* HDMI_3D_TX_PHY_PTRPT_ENBL values */
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_OVERRIDE		BIT(15)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_PG_SKIP_BIT2		BIT(8)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_PG_SKIP_BIT1		BIT(7)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_PG_SKIP_BIT0		BIT(6)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_CK_REF_ENB		BIT(5)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_RCAL_ENB		BIT(4)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_TX_CLK_ALIGN_ENB	BIT(3)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_TX_READY		BIT(2)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_CKO_WORD_ENB		BIT(1)
+#define HDMI_3D_TX_PHY_PTRPT_ENBL_REFCLK_ENB		BIT(0)
+
+#endif /* __DW_HDMI_H__ */
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
new file mode 100644
index 000000000..b2efecf7d
--- /dev/null
+++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
@@ -0,0 +1,1245 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2016, Fuzhou Rockchip Electronics Co., Ltd
+ * Copyright (C) STMicroelectronics SA 2017
+ *
+ * Modified by Philippe Cornu <philippe.cornu@st.com>
+ * This generic Synopsys DesignWare MIPI DSI host driver is based on the
+ * Rockchip version from rockchip/dw-mipi-dsi.c with phy & bridge APIs.
+ */
+
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/debugfs.h>
+#include <linux/iopoll.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/bridge/dw_mipi_dsi.h>
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_of.h>
+#include <drm/drm_print.h>
+
+#define HWVER_131			0x31333100	/* IP version 1.31 */
+
+#define DSI_VERSION			0x00
+#define VERSION				GENMASK(31, 8)
+
+#define DSI_PWR_UP			0x04
+#define RESET				0
+#define POWERUP				BIT(0)
+
+#define DSI_CLKMGR_CFG			0x08
+#define TO_CLK_DIVISION(div)		(((div) & 0xff) << 8)
+#define TX_ESC_CLK_DIVISION(div)	((div) & 0xff)
+
+#define DSI_DPI_VCID			0x0c
+#define DPI_VCID(vcid)			((vcid) & 0x3)
+
+#define DSI_DPI_COLOR_CODING		0x10
+#define LOOSELY18_EN			BIT(8)
+#define DPI_COLOR_CODING_16BIT_1	0x0
+#define DPI_COLOR_CODING_16BIT_2	0x1
+#define DPI_COLOR_CODING_16BIT_3	0x2
+#define DPI_COLOR_CODING_18BIT_1	0x3
+#define DPI_COLOR_CODING_18BIT_2	0x4
+#define DPI_COLOR_CODING_24BIT		0x5
+
+#define DSI_DPI_CFG_POL			0x14
+#define COLORM_ACTIVE_LOW		BIT(4)
+#define SHUTD_ACTIVE_LOW		BIT(3)
+#define HSYNC_ACTIVE_LOW		BIT(2)
+#define VSYNC_ACTIVE_LOW		BIT(1)
+#define DATAEN_ACTIVE_LOW		BIT(0)
+
+#define DSI_DPI_LP_CMD_TIM		0x18
+#define OUTVACT_LPCMD_TIME(p)		(((p) & 0xff) << 16)
+#define INVACT_LPCMD_TIME(p)		((p) & 0xff)
+
+#define DSI_DBI_VCID			0x1c
+#define DSI_DBI_CFG			0x20
+#define DSI_DBI_PARTITIONING_EN		0x24
+#define DSI_DBI_CMDSIZE			0x28
+
+#define DSI_PCKHDL_CFG			0x2c
+#define CRC_RX_EN			BIT(4)
+#define ECC_RX_EN			BIT(3)
+#define BTA_EN				BIT(2)
+#define EOTP_RX_EN			BIT(1)
+#define EOTP_TX_EN			BIT(0)
+
+#define DSI_GEN_VCID			0x30
+
+#define DSI_MODE_CFG			0x34
+#define ENABLE_VIDEO_MODE		0
+#define ENABLE_CMD_MODE			BIT(0)
+
+#define DSI_VID_MODE_CFG		0x38
+#define ENABLE_LOW_POWER		(0x3f << 8)
+#define ENABLE_LOW_POWER_MASK		(0x3f << 8)
+#define VID_MODE_TYPE_NON_BURST_SYNC_PULSES	0x0
+#define VID_MODE_TYPE_NON_BURST_SYNC_EVENTS	0x1
+#define VID_MODE_TYPE_BURST			0x2
+#define VID_MODE_TYPE_MASK			0x3
+#define ENABLE_LOW_POWER_CMD		BIT(15)
+#define VID_MODE_VPG_ENABLE		BIT(16)
+#define VID_MODE_VPG_MODE		BIT(20)
+#define VID_MODE_VPG_HORIZONTAL		BIT(24)
+
+#define DSI_VID_PKT_SIZE		0x3c
+#define VID_PKT_SIZE(p)			((p) & 0x3fff)
+
+#define DSI_VID_NUM_CHUNKS		0x40
+#define VID_NUM_CHUNKS(c)		((c) & 0x1fff)
+
+#define DSI_VID_NULL_SIZE		0x44
+#define VID_NULL_SIZE(b)		((b) & 0x1fff)
+
+#define DSI_VID_HSA_TIME		0x48
+#define DSI_VID_HBP_TIME		0x4c
+#define DSI_VID_HLINE_TIME		0x50
+#define DSI_VID_VSA_LINES		0x54
+#define DSI_VID_VBP_LINES		0x58
+#define DSI_VID_VFP_LINES		0x5c
+#define DSI_VID_VACTIVE_LINES		0x60
+#define DSI_EDPI_CMD_SIZE		0x64
+
+#define DSI_CMD_MODE_CFG		0x68
+#define MAX_RD_PKT_SIZE_LP		BIT(24)
+#define DCS_LW_TX_LP			BIT(19)
+#define DCS_SR_0P_TX_LP			BIT(18)
+#define DCS_SW_1P_TX_LP			BIT(17)
+#define DCS_SW_0P_TX_LP			BIT(16)
+#define GEN_LW_TX_LP			BIT(14)
+#define GEN_SR_2P_TX_LP			BIT(13)
+#define GEN_SR_1P_TX_LP			BIT(12)
+#define GEN_SR_0P_TX_LP			BIT(11)
+#define GEN_SW_2P_TX_LP			BIT(10)
+#define GEN_SW_1P_TX_LP			BIT(9)
+#define GEN_SW_0P_TX_LP			BIT(8)
+#define ACK_RQST_EN			BIT(1)
+#define TEAR_FX_EN			BIT(0)
+
+#define CMD_MODE_ALL_LP			(MAX_RD_PKT_SIZE_LP | \
+					 DCS_LW_TX_LP | \
+					 DCS_SR_0P_TX_LP | \
+					 DCS_SW_1P_TX_LP | \
+					 DCS_SW_0P_TX_LP | \
+					 GEN_LW_TX_LP | \
+					 GEN_SR_2P_TX_LP | \
+					 GEN_SR_1P_TX_LP | \
+					 GEN_SR_0P_TX_LP | \
+					 GEN_SW_2P_TX_LP | \
+					 GEN_SW_1P_TX_LP | \
+					 GEN_SW_0P_TX_LP)
+
+#define DSI_GEN_HDR			0x6c
+#define DSI_GEN_PLD_DATA		0x70
+
+#define DSI_CMD_PKT_STATUS		0x74
+#define GEN_RD_CMD_BUSY			BIT(6)
+#define GEN_PLD_R_FULL			BIT(5)
+#define GEN_PLD_R_EMPTY			BIT(4)
+#define GEN_PLD_W_FULL			BIT(3)
+#define GEN_PLD_W_EMPTY			BIT(2)
+#define GEN_CMD_FULL			BIT(1)
+#define GEN_CMD_EMPTY			BIT(0)
+
+#define DSI_TO_CNT_CFG			0x78
+#define HSTX_TO_CNT(p)			(((p) & 0xffff) << 16)
+#define LPRX_TO_CNT(p)			((p) & 0xffff)
+
+#define DSI_HS_RD_TO_CNT		0x7c
+#define DSI_LP_RD_TO_CNT		0x80
+#define DSI_HS_WR_TO_CNT		0x84
+#define DSI_LP_WR_TO_CNT		0x88
+#define DSI_BTA_TO_CNT			0x8c
+
+#define DSI_LPCLK_CTRL			0x94
+#define AUTO_CLKLANE_CTRL		BIT(1)
+#define PHY_TXREQUESTCLKHS		BIT(0)
+
+#define DSI_PHY_TMR_LPCLK_CFG		0x98
+#define PHY_CLKHS2LP_TIME(lbcc)		(((lbcc) & 0x3ff) << 16)
+#define PHY_CLKLP2HS_TIME(lbcc)		((lbcc) & 0x3ff)
+
+#define DSI_PHY_TMR_CFG			0x9c
+#define PHY_HS2LP_TIME(lbcc)		(((lbcc) & 0xff) << 24)
+#define PHY_LP2HS_TIME(lbcc)		(((lbcc) & 0xff) << 16)
+#define MAX_RD_TIME(lbcc)		((lbcc) & 0x7fff)
+#define PHY_HS2LP_TIME_V131(lbcc)	(((lbcc) & 0x3ff) << 16)
+#define PHY_LP2HS_TIME_V131(lbcc)	((lbcc) & 0x3ff)
+
+#define DSI_PHY_RSTZ			0xa0
+#define PHY_DISFORCEPLL			0
+#define PHY_ENFORCEPLL			BIT(3)
+#define PHY_DISABLECLK			0
+#define PHY_ENABLECLK			BIT(2)
+#define PHY_RSTZ			0
+#define PHY_UNRSTZ			BIT(1)
+#define PHY_SHUTDOWNZ			0
+#define PHY_UNSHUTDOWNZ			BIT(0)
+
+#define DSI_PHY_IF_CFG			0xa4
+#define PHY_STOP_WAIT_TIME(cycle)	(((cycle) & 0xff) << 8)
+#define N_LANES(n)			(((n) - 1) & 0x3)
+
+#define DSI_PHY_ULPS_CTRL		0xa8
+#define DSI_PHY_TX_TRIGGERS		0xac
+
+#define DSI_PHY_STATUS			0xb0
+#define PHY_STOP_STATE_CLK_LANE		BIT(2)
+#define PHY_LOCK			BIT(0)
+
+#define DSI_PHY_TST_CTRL0		0xb4
+#define PHY_TESTCLK			BIT(1)
+#define PHY_UNTESTCLK			0
+#define PHY_TESTCLR			BIT(0)
+#define PHY_UNTESTCLR			0
+
+#define DSI_PHY_TST_CTRL1		0xb8
+#define PHY_TESTEN			BIT(16)
+#define PHY_UNTESTEN			0
+#define PHY_TESTDOUT(n)			(((n) & 0xff) << 8)
+#define PHY_TESTDIN(n)			((n) & 0xff)
+
+#define DSI_INT_ST0			0xbc
+#define DSI_INT_ST1			0xc0
+#define DSI_INT_MSK0			0xc4
+#define DSI_INT_MSK1			0xc8
+
+#define DSI_PHY_TMR_RD_CFG		0xf4
+#define MAX_RD_TIME_V131(lbcc)		((lbcc) & 0x7fff)
+
+#define PHY_STATUS_TIMEOUT_US		10000
+#define CMD_PKT_STATUS_TIMEOUT_US	20000
+
+#ifdef CONFIG_DEBUG_FS
+#define VPG_DEFS(name, dsi) \
+	((void __force *)&((*dsi).vpg_defs.name))
+
+#define REGISTER(name, mask, dsi) \
+	{ #name, VPG_DEFS(name, dsi), mask, dsi }
+
+struct debugfs_entries {
+	const char				*name;
+	bool					*reg;
+	u32					mask;
+	struct dw_mipi_dsi			*dsi;
+};
+#endif /* CONFIG_DEBUG_FS */
+
+struct dw_mipi_dsi {
+	struct drm_bridge bridge;
+	struct mipi_dsi_host dsi_host;
+	struct drm_bridge *panel_bridge;
+	struct device *dev;
+	void __iomem *base;
+
+	struct clk *pclk;
+
+	unsigned int lane_mbps; /* per lane */
+	u32 channel;
+	u32 lanes;
+	u32 format;
+	unsigned long mode_flags;
+
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *debugfs;
+	struct debugfs_entries *debugfs_vpg;
+	struct {
+		bool vpg;
+		bool vpg_horizontal;
+		bool vpg_ber_pattern;
+	} vpg_defs;
+#endif /* CONFIG_DEBUG_FS */
+
+	struct dw_mipi_dsi *master; /* dual-dsi master ptr */
+	struct dw_mipi_dsi *slave; /* dual-dsi slave ptr */
+
+	const struct dw_mipi_dsi_plat_data *plat_data;
+};
+
+/*
+ * Check if either a link to a master or slave is present
+ */
+static inline bool dw_mipi_is_dual_mode(struct dw_mipi_dsi *dsi)
+{
+	return dsi->slave || dsi->master;
+}
+
+/*
+ * The controller should generate 2 frames before
+ * preparing the peripheral.
+ */
+static void dw_mipi_dsi_wait_for_two_frames(const struct drm_display_mode *mode)
+{
+	int refresh, two_frames;
+
+	refresh = drm_mode_vrefresh(mode);
+	two_frames = DIV_ROUND_UP(MSEC_PER_SEC, refresh) * 2;
+	msleep(two_frames);
+}
+
+static inline struct dw_mipi_dsi *host_to_dsi(struct mipi_dsi_host *host)
+{
+	return container_of(host, struct dw_mipi_dsi, dsi_host);
+}
+
+static inline struct dw_mipi_dsi *bridge_to_dsi(struct drm_bridge *bridge)
+{
+	return container_of(bridge, struct dw_mipi_dsi, bridge);
+}
+
+static inline void dsi_write(struct dw_mipi_dsi *dsi, u32 reg, u32 val)
+{
+	writel(val, dsi->base + reg);
+}
+
+static inline u32 dsi_read(struct dw_mipi_dsi *dsi, u32 reg)
+{
+	return readl(dsi->base + reg);
+}
+
+static int dw_mipi_dsi_host_attach(struct mipi_dsi_host *host,
+				   struct mipi_dsi_device *device)
+{
+	struct dw_mipi_dsi *dsi = host_to_dsi(host);
+	const struct dw_mipi_dsi_plat_data *pdata = dsi->plat_data;
+	struct drm_bridge *bridge;
+	int ret;
+
+	if (device->lanes > dsi->plat_data->max_data_lanes) {
+		dev_err(dsi->dev, "the number of data lanes(%u) is too many\n",
+			device->lanes);
+		return -EINVAL;
+	}
+
+	dsi->lanes = device->lanes;
+	dsi->channel = device->channel;
+	dsi->format = device->format;
+	dsi->mode_flags = device->mode_flags;
+
+	bridge = devm_drm_of_get_bridge(dsi->dev, dsi->dev->of_node, 1, 0);
+	if (IS_ERR(bridge))
+		return PTR_ERR(bridge);
+
+	dsi->panel_bridge = bridge;
+
+	drm_bridge_add(&dsi->bridge);
+
+	if (pdata->host_ops && pdata->host_ops->attach) {
+		ret = pdata->host_ops->attach(pdata->priv_data, device);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int dw_mipi_dsi_host_detach(struct mipi_dsi_host *host,
+				   struct mipi_dsi_device *device)
+{
+	struct dw_mipi_dsi *dsi = host_to_dsi(host);
+	const struct dw_mipi_dsi_plat_data *pdata = dsi->plat_data;
+	int ret;
+
+	if (pdata->host_ops && pdata->host_ops->detach) {
+		ret = pdata->host_ops->detach(pdata->priv_data, device);
+		if (ret < 0)
+			return ret;
+	}
+
+	drm_of_panel_bridge_remove(host->dev->of_node, 1, 0);
+
+	drm_bridge_remove(&dsi->bridge);
+
+	return 0;
+}
+
+static void dw_mipi_message_config(struct dw_mipi_dsi *dsi,
+				   const struct mipi_dsi_msg *msg)
+{
+	bool lpm = msg->flags & MIPI_DSI_MSG_USE_LPM;
+	u32 val = 0;
+
+	/*
+	 * TODO dw drv improvements
+	 * largest packet sizes during hfp or during vsa/vpb/vfp
+	 * should be computed according to byte lane, lane number and only
+	 * if sending lp cmds in high speed is enable (PHY_TXREQUESTCLKHS)
+	 */
+	dsi_write(dsi, DSI_DPI_LP_CMD_TIM, OUTVACT_LPCMD_TIME(16)
+		  | INVACT_LPCMD_TIME(4));
+
+	if (msg->flags & MIPI_DSI_MSG_REQ_ACK)
+		val |= ACK_RQST_EN;
+	if (lpm)
+		val |= CMD_MODE_ALL_LP;
+
+	dsi_write(dsi, DSI_CMD_MODE_CFG, val);
+
+	val = dsi_read(dsi, DSI_VID_MODE_CFG);
+	if (lpm)
+		val |= ENABLE_LOW_POWER_CMD;
+	else
+		val &= ~ENABLE_LOW_POWER_CMD;
+	dsi_write(dsi, DSI_VID_MODE_CFG, val);
+}
+
+static int dw_mipi_dsi_gen_pkt_hdr_write(struct dw_mipi_dsi *dsi, u32 hdr_val)
+{
+	int ret;
+	u32 val, mask;
+
+	ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
+				 val, !(val & GEN_CMD_FULL), 1000,
+				 CMD_PKT_STATUS_TIMEOUT_US);
+	if (ret) {
+		dev_err(dsi->dev, "failed to get available command FIFO\n");
+		return ret;
+	}
+
+	dsi_write(dsi, DSI_GEN_HDR, hdr_val);
+
+	mask = GEN_CMD_EMPTY | GEN_PLD_W_EMPTY;
+	ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
+				 val, (val & mask) == mask,
+				 1000, CMD_PKT_STATUS_TIMEOUT_US);
+	if (ret) {
+		dev_err(dsi->dev, "failed to write command FIFO\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int dw_mipi_dsi_write(struct dw_mipi_dsi *dsi,
+			     const struct mipi_dsi_packet *packet)
+{
+	const u8 *tx_buf = packet->payload;
+	int len = packet->payload_length, pld_data_bytes = sizeof(u32), ret;
+	__le32 word;
+	u32 val;
+
+	while (len) {
+		if (len < pld_data_bytes) {
+			word = 0;
+			memcpy(&word, tx_buf, len);
+			dsi_write(dsi, DSI_GEN_PLD_DATA, le32_to_cpu(word));
+			len = 0;
+		} else {
+			memcpy(&word, tx_buf, pld_data_bytes);
+			dsi_write(dsi, DSI_GEN_PLD_DATA, le32_to_cpu(word));
+			tx_buf += pld_data_bytes;
+			len -= pld_data_bytes;
+		}
+
+		ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
+					 val, !(val & GEN_PLD_W_FULL), 1000,
+					 CMD_PKT_STATUS_TIMEOUT_US);
+		if (ret) {
+			dev_err(dsi->dev,
+				"failed to get available write payload FIFO\n");
+			return ret;
+		}
+	}
+
+	word = 0;
+	memcpy(&word, packet->header, sizeof(packet->header));
+	return dw_mipi_dsi_gen_pkt_hdr_write(dsi, le32_to_cpu(word));
+}
+
+static int dw_mipi_dsi_read(struct dw_mipi_dsi *dsi,
+			    const struct mipi_dsi_msg *msg)
+{
+	int i, j, ret, len = msg->rx_len;
+	u8 *buf = msg->rx_buf;
+	u32 val;
+
+	/* Wait end of the read operation */
+	ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
+				 val, !(val & GEN_RD_CMD_BUSY),
+				 1000, CMD_PKT_STATUS_TIMEOUT_US);
+	if (ret) {
+		dev_err(dsi->dev, "Timeout during read operation\n");
+		return ret;
+	}
+
+	for (i = 0; i < len; i += 4) {
+		/* Read fifo must not be empty before all bytes are read */
+		ret = readl_poll_timeout(dsi->base + DSI_CMD_PKT_STATUS,
+					 val, !(val & GEN_PLD_R_EMPTY),
+					 1000, CMD_PKT_STATUS_TIMEOUT_US);
+		if (ret) {
+			dev_err(dsi->dev, "Read payload FIFO is empty\n");
+			return ret;
+		}
+
+		val = dsi_read(dsi, DSI_GEN_PLD_DATA);
+		for (j = 0; j < 4 && j + i < len; j++)
+			buf[i + j] = val >> (8 * j);
+	}
+
+	return ret;
+}
+
+static ssize_t dw_mipi_dsi_host_transfer(struct mipi_dsi_host *host,
+					 const struct mipi_dsi_msg *msg)
+{
+	struct dw_mipi_dsi *dsi = host_to_dsi(host);
+	struct mipi_dsi_packet packet;
+	int ret, nb_bytes;
+
+	ret = mipi_dsi_create_packet(&packet, msg);
+	if (ret) {
+		dev_err(dsi->dev, "failed to create packet: %d\n", ret);
+		return ret;
+	}
+
+	dw_mipi_message_config(dsi, msg);
+	if (dsi->slave)
+		dw_mipi_message_config(dsi->slave, msg);
+
+	ret = dw_mipi_dsi_write(dsi, &packet);
+	if (ret)
+		return ret;
+	if (dsi->slave) {
+		ret = dw_mipi_dsi_write(dsi->slave, &packet);
+		if (ret)
+			return ret;
+	}
+
+	if (msg->rx_buf && msg->rx_len) {
+		ret = dw_mipi_dsi_read(dsi, msg);
+		if (ret)
+			return ret;
+		nb_bytes = msg->rx_len;
+	} else {
+		nb_bytes = packet.size;
+	}
+
+	return nb_bytes;
+}
+
+static const struct mipi_dsi_host_ops dw_mipi_dsi_host_ops = {
+	.attach = dw_mipi_dsi_host_attach,
+	.detach = dw_mipi_dsi_host_detach,
+	.transfer = dw_mipi_dsi_host_transfer,
+};
+
+static void dw_mipi_dsi_video_mode_config(struct dw_mipi_dsi *dsi)
+{
+	u32 val;
+
+	/*
+	 * TODO dw drv improvements
+	 * enabling low power is panel-dependent, we should use the
+	 * panel configuration here...
+	 */
+	val = ENABLE_LOW_POWER;
+
+	if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_BURST)
+		val |= VID_MODE_TYPE_BURST;
+	else if (dsi->mode_flags & MIPI_DSI_MODE_VIDEO_SYNC_PULSE)
+		val |= VID_MODE_TYPE_NON_BURST_SYNC_PULSES;
+	else
+		val |= VID_MODE_TYPE_NON_BURST_SYNC_EVENTS;
+
+#ifdef CONFIG_DEBUG_FS
+	if (dsi->vpg_defs.vpg) {
+		val |= VID_MODE_VPG_ENABLE;
+		val |= dsi->vpg_defs.vpg_horizontal ?
+		       VID_MODE_VPG_HORIZONTAL : 0;
+		val |= dsi->vpg_defs.vpg_ber_pattern ? VID_MODE_VPG_MODE : 0;
+	}
+#endif /* CONFIG_DEBUG_FS */
+
+	dsi_write(dsi, DSI_VID_MODE_CFG, val);
+}
+
+static void dw_mipi_dsi_set_mode(struct dw_mipi_dsi *dsi,
+				 unsigned long mode_flags)
+{
+	u32 val;
+
+	dsi_write(dsi, DSI_PWR_UP, RESET);
+
+	if (mode_flags & MIPI_DSI_MODE_VIDEO) {
+		dsi_write(dsi, DSI_MODE_CFG, ENABLE_VIDEO_MODE);
+		dw_mipi_dsi_video_mode_config(dsi);
+	} else {
+		dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
+	}
+
+	val = PHY_TXREQUESTCLKHS;
+	if (dsi->mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS)
+		val |= AUTO_CLKLANE_CTRL;
+	dsi_write(dsi, DSI_LPCLK_CTRL, val);
+
+	dsi_write(dsi, DSI_PWR_UP, POWERUP);
+}
+
+static void dw_mipi_dsi_disable(struct dw_mipi_dsi *dsi)
+{
+	dsi_write(dsi, DSI_PWR_UP, RESET);
+	dsi_write(dsi, DSI_PHY_RSTZ, PHY_RSTZ);
+}
+
+static void dw_mipi_dsi_init(struct dw_mipi_dsi *dsi)
+{
+	const struct dw_mipi_dsi_phy_ops *phy_ops = dsi->plat_data->phy_ops;
+	unsigned int esc_rate; /* in MHz */
+	u32 esc_clk_division;
+	int ret;
+
+	/*
+	 * The maximum permitted escape clock is 20MHz and it is derived from
+	 * lanebyteclk, which is running at "lane_mbps / 8".
+	 */
+	if (phy_ops->get_esc_clk_rate) {
+		ret = phy_ops->get_esc_clk_rate(dsi->plat_data->priv_data,
+						&esc_rate);
+		if (ret)
+			DRM_DEBUG_DRIVER("Phy get_esc_clk_rate() failed\n");
+	} else
+		esc_rate = 20; /* Default to 20MHz */
+
+	/*
+	 * We want :
+	 *     (lane_mbps >> 3) / esc_clk_division < X
+	 * which is:
+	 *     (lane_mbps >> 3) / X > esc_clk_division
+	 */
+	esc_clk_division = (dsi->lane_mbps >> 3) / esc_rate + 1;
+
+	dsi_write(dsi, DSI_PWR_UP, RESET);
+
+	/*
+	 * TODO dw drv improvements
+	 * timeout clock division should be computed with the
+	 * high speed transmission counter timeout and byte lane...
+	 */
+	dsi_write(dsi, DSI_CLKMGR_CFG, TO_CLK_DIVISION(10) |
+		  TX_ESC_CLK_DIVISION(esc_clk_division));
+}
+
+static void dw_mipi_dsi_dpi_config(struct dw_mipi_dsi *dsi,
+				   const struct drm_display_mode *mode)
+{
+	u32 val = 0, color = 0;
+
+	switch (dsi->format) {
+	case MIPI_DSI_FMT_RGB888:
+		color = DPI_COLOR_CODING_24BIT;
+		break;
+	case MIPI_DSI_FMT_RGB666:
+		color = DPI_COLOR_CODING_18BIT_2 | LOOSELY18_EN;
+		break;
+	case MIPI_DSI_FMT_RGB666_PACKED:
+		color = DPI_COLOR_CODING_18BIT_1;
+		break;
+	case MIPI_DSI_FMT_RGB565:
+		color = DPI_COLOR_CODING_16BIT_1;
+		break;
+	}
+
+	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
+		val |= VSYNC_ACTIVE_LOW;
+	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
+		val |= HSYNC_ACTIVE_LOW;
+
+	dsi_write(dsi, DSI_DPI_VCID, DPI_VCID(dsi->channel));
+	dsi_write(dsi, DSI_DPI_COLOR_CODING, color);
+	dsi_write(dsi, DSI_DPI_CFG_POL, val);
+}
+
+static void dw_mipi_dsi_packet_handler_config(struct dw_mipi_dsi *dsi)
+{
+	dsi_write(dsi, DSI_PCKHDL_CFG, CRC_RX_EN | ECC_RX_EN | BTA_EN);
+}
+
+static void dw_mipi_dsi_video_packet_config(struct dw_mipi_dsi *dsi,
+					    const struct drm_display_mode *mode)
+{
+	/*
+	 * TODO dw drv improvements
+	 * only burst mode is supported here. For non-burst video modes,
+	 * we should compute DSI_VID_PKT_SIZE, DSI_VCCR.NUMC &
+	 * DSI_VNPCR.NPSIZE... especially because this driver supports
+	 * non-burst video modes, see dw_mipi_dsi_video_mode_config()...
+	 */
+
+	dsi_write(dsi, DSI_VID_PKT_SIZE,
+		       dw_mipi_is_dual_mode(dsi) ?
+				VID_PKT_SIZE(mode->hdisplay / 2) :
+				VID_PKT_SIZE(mode->hdisplay));
+}
+
+static void dw_mipi_dsi_command_mode_config(struct dw_mipi_dsi *dsi)
+{
+	/*
+	 * TODO dw drv improvements
+	 * compute high speed transmission counter timeout according
+	 * to the timeout clock division (TO_CLK_DIVISION) and byte lane...
+	 */
+	dsi_write(dsi, DSI_TO_CNT_CFG, HSTX_TO_CNT(1000) | LPRX_TO_CNT(1000));
+	/*
+	 * TODO dw drv improvements
+	 * the Bus-Turn-Around Timeout Counter should be computed
+	 * according to byte lane...
+	 */
+	dsi_write(dsi, DSI_BTA_TO_CNT, 0xd00);
+	dsi_write(dsi, DSI_MODE_CFG, ENABLE_CMD_MODE);
+}
+
+/* Get lane byte clock cycles. */
+static u32 dw_mipi_dsi_get_hcomponent_lbcc(struct dw_mipi_dsi *dsi,
+					   const struct drm_display_mode *mode,
+					   u32 hcomponent)
+{
+	u32 frac, lbcc;
+
+	lbcc = hcomponent * dsi->lane_mbps * MSEC_PER_SEC / 8;
+
+	frac = lbcc % mode->clock;
+	lbcc = lbcc / mode->clock;
+	if (frac)
+		lbcc++;
+
+	return lbcc;
+}
+
+static void dw_mipi_dsi_line_timer_config(struct dw_mipi_dsi *dsi,
+					  const struct drm_display_mode *mode)
+{
+	u32 htotal, hsa, hbp, lbcc;
+
+	htotal = mode->htotal;
+	hsa = mode->hsync_end - mode->hsync_start;
+	hbp = mode->htotal - mode->hsync_end;
+
+	/*
+	 * TODO dw drv improvements
+	 * computations below may be improved...
+	 */
+	lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, mode, htotal);
+	dsi_write(dsi, DSI_VID_HLINE_TIME, lbcc);
+
+	lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, mode, hsa);
+	dsi_write(dsi, DSI_VID_HSA_TIME, lbcc);
+
+	lbcc = dw_mipi_dsi_get_hcomponent_lbcc(dsi, mode, hbp);
+	dsi_write(dsi, DSI_VID_HBP_TIME, lbcc);
+}
+
+static void dw_mipi_dsi_vertical_timing_config(struct dw_mipi_dsi *dsi,
+					const struct drm_display_mode *mode)
+{
+	u32 vactive, vsa, vfp, vbp;
+
+	vactive = mode->vdisplay;
+	vsa = mode->vsync_end - mode->vsync_start;
+	vfp = mode->vsync_start - mode->vdisplay;
+	vbp = mode->vtotal - mode->vsync_end;
+
+	dsi_write(dsi, DSI_VID_VACTIVE_LINES, vactive);
+	dsi_write(dsi, DSI_VID_VSA_LINES, vsa);
+	dsi_write(dsi, DSI_VID_VFP_LINES, vfp);
+	dsi_write(dsi, DSI_VID_VBP_LINES, vbp);
+}
+
+static void dw_mipi_dsi_dphy_timing_config(struct dw_mipi_dsi *dsi)
+{
+	const struct dw_mipi_dsi_phy_ops *phy_ops = dsi->plat_data->phy_ops;
+	struct dw_mipi_dsi_dphy_timing timing;
+	u32 hw_version;
+	int ret;
+
+	ret = phy_ops->get_timing(dsi->plat_data->priv_data,
+				  dsi->lane_mbps, &timing);
+	if (ret)
+		DRM_DEV_ERROR(dsi->dev, "Retrieving phy timings failed\n");
+
+	/*
+	 * TODO dw drv improvements
+	 * data & clock lane timers should be computed according to panel
+	 * blankings and to the automatic clock lane control mode...
+	 * note: DSI_PHY_TMR_CFG.MAX_RD_TIME should be in line with
+	 * DSI_CMD_MODE_CFG.MAX_RD_PKT_SIZE_LP (see CMD_MODE_ALL_LP)
+	 */
+
+	hw_version = dsi_read(dsi, DSI_VERSION) & VERSION;
+
+	if (hw_version >= HWVER_131) {
+		dsi_write(dsi, DSI_PHY_TMR_CFG,
+			  PHY_HS2LP_TIME_V131(timing.data_hs2lp) |
+			  PHY_LP2HS_TIME_V131(timing.data_lp2hs));
+		dsi_write(dsi, DSI_PHY_TMR_RD_CFG, MAX_RD_TIME_V131(10000));
+	} else {
+		dsi_write(dsi, DSI_PHY_TMR_CFG,
+			  PHY_HS2LP_TIME(timing.data_hs2lp) |
+			  PHY_LP2HS_TIME(timing.data_lp2hs) |
+			  MAX_RD_TIME(10000));
+	}
+
+	dsi_write(dsi, DSI_PHY_TMR_LPCLK_CFG,
+		  PHY_CLKHS2LP_TIME(timing.clk_hs2lp) |
+		  PHY_CLKLP2HS_TIME(timing.clk_lp2hs));
+}
+
+static void dw_mipi_dsi_dphy_interface_config(struct dw_mipi_dsi *dsi)
+{
+	/*
+	 * TODO dw drv improvements
+	 * stop wait time should be the maximum between host dsi
+	 * and panel stop wait times
+	 */
+	dsi_write(dsi, DSI_PHY_IF_CFG, PHY_STOP_WAIT_TIME(0x20) |
+		  N_LANES(dsi->lanes));
+}
+
+static void dw_mipi_dsi_dphy_init(struct dw_mipi_dsi *dsi)
+{
+	/* Clear PHY state */
+	dsi_write(dsi, DSI_PHY_RSTZ, PHY_DISFORCEPLL | PHY_DISABLECLK
+		  | PHY_RSTZ | PHY_SHUTDOWNZ);
+	dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_UNTESTCLR);
+	dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_TESTCLR);
+	dsi_write(dsi, DSI_PHY_TST_CTRL0, PHY_UNTESTCLR);
+}
+
+static void dw_mipi_dsi_dphy_enable(struct dw_mipi_dsi *dsi)
+{
+	u32 val;
+	int ret;
+
+	dsi_write(dsi, DSI_PHY_RSTZ, PHY_ENFORCEPLL | PHY_ENABLECLK |
+		  PHY_UNRSTZ | PHY_UNSHUTDOWNZ);
+
+	ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS, val,
+				 val & PHY_LOCK, 1000, PHY_STATUS_TIMEOUT_US);
+	if (ret)
+		DRM_DEBUG_DRIVER("failed to wait phy lock state\n");
+
+	ret = readl_poll_timeout(dsi->base + DSI_PHY_STATUS,
+				 val, val & PHY_STOP_STATE_CLK_LANE, 1000,
+				 PHY_STATUS_TIMEOUT_US);
+	if (ret)
+		DRM_DEBUG_DRIVER("failed to wait phy clk lane stop state\n");
+}
+
+static void dw_mipi_dsi_clear_err(struct dw_mipi_dsi *dsi)
+{
+	dsi_read(dsi, DSI_INT_ST0);
+	dsi_read(dsi, DSI_INT_ST1);
+	dsi_write(dsi, DSI_INT_MSK0, 0);
+	dsi_write(dsi, DSI_INT_MSK1, 0);
+}
+
+static void dw_mipi_dsi_bridge_post_atomic_disable(struct drm_bridge *bridge,
+						   struct drm_bridge_state *old_bridge_state)
+{
+	struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+	const struct dw_mipi_dsi_phy_ops *phy_ops = dsi->plat_data->phy_ops;
+
+	/*
+	 * Switch to command mode before panel-bridge post_disable &
+	 * panel unprepare.
+	 * Note: panel-bridge disable & panel disable has been called
+	 * before by the drm framework.
+	 */
+	dw_mipi_dsi_set_mode(dsi, 0);
+
+	/*
+	 * TODO Only way found to call panel-bridge post_disable &
+	 * panel unprepare before the dsi "final" disable...
+	 * This needs to be fixed in the drm_bridge framework and the API
+	 * needs to be updated to manage our own call chains...
+	 */
+	if (dsi->panel_bridge->funcs->post_disable)
+		dsi->panel_bridge->funcs->post_disable(dsi->panel_bridge);
+
+	if (phy_ops->power_off)
+		phy_ops->power_off(dsi->plat_data->priv_data);
+
+	if (dsi->slave) {
+		dw_mipi_dsi_disable(dsi->slave);
+		clk_disable_unprepare(dsi->slave->pclk);
+		pm_runtime_put(dsi->slave->dev);
+	}
+	dw_mipi_dsi_disable(dsi);
+
+	clk_disable_unprepare(dsi->pclk);
+	pm_runtime_put(dsi->dev);
+}
+
+static unsigned int dw_mipi_dsi_get_lanes(struct dw_mipi_dsi *dsi)
+{
+	/* this instance is the slave, so add the master's lanes */
+	if (dsi->master)
+		return dsi->master->lanes + dsi->lanes;
+
+	/* this instance is the master, so add the slave's lanes */
+	if (dsi->slave)
+		return dsi->lanes + dsi->slave->lanes;
+
+	/* single-dsi, so no other instance to consider */
+	return dsi->lanes;
+}
+
+static void dw_mipi_dsi_mode_set(struct dw_mipi_dsi *dsi,
+				 const struct drm_display_mode *adjusted_mode)
+{
+	const struct dw_mipi_dsi_phy_ops *phy_ops = dsi->plat_data->phy_ops;
+	void *priv_data = dsi->plat_data->priv_data;
+	int ret;
+	u32 lanes = dw_mipi_dsi_get_lanes(dsi);
+
+	clk_prepare_enable(dsi->pclk);
+
+	ret = phy_ops->get_lane_mbps(priv_data, adjusted_mode, dsi->mode_flags,
+				     lanes, dsi->format, &dsi->lane_mbps);
+	if (ret)
+		DRM_DEBUG_DRIVER("Phy get_lane_mbps() failed\n");
+
+	pm_runtime_get_sync(dsi->dev);
+	dw_mipi_dsi_init(dsi);
+	dw_mipi_dsi_dpi_config(dsi, adjusted_mode);
+	dw_mipi_dsi_packet_handler_config(dsi);
+	dw_mipi_dsi_video_mode_config(dsi);
+	dw_mipi_dsi_video_packet_config(dsi, adjusted_mode);
+	dw_mipi_dsi_command_mode_config(dsi);
+	dw_mipi_dsi_line_timer_config(dsi, adjusted_mode);
+	dw_mipi_dsi_vertical_timing_config(dsi, adjusted_mode);
+
+	dw_mipi_dsi_dphy_init(dsi);
+	dw_mipi_dsi_dphy_timing_config(dsi);
+	dw_mipi_dsi_dphy_interface_config(dsi);
+
+	dw_mipi_dsi_clear_err(dsi);
+
+	ret = phy_ops->init(priv_data);
+	if (ret)
+		DRM_DEBUG_DRIVER("Phy init() failed\n");
+
+	dw_mipi_dsi_dphy_enable(dsi);
+
+	dw_mipi_dsi_wait_for_two_frames(adjusted_mode);
+
+	/* Switch to cmd mode for panel-bridge pre_enable & panel prepare */
+	dw_mipi_dsi_set_mode(dsi, 0);
+
+	if (phy_ops->power_on)
+		phy_ops->power_on(dsi->plat_data->priv_data);
+}
+
+static void dw_mipi_dsi_bridge_mode_set(struct drm_bridge *bridge,
+					const struct drm_display_mode *mode,
+					const struct drm_display_mode *adjusted_mode)
+{
+	struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+
+	dw_mipi_dsi_mode_set(dsi, adjusted_mode);
+	if (dsi->slave)
+		dw_mipi_dsi_mode_set(dsi->slave, adjusted_mode);
+}
+
+static void dw_mipi_dsi_bridge_atomic_enable(struct drm_bridge *bridge,
+					     struct drm_bridge_state *old_bridge_state)
+{
+	struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+
+	/* Switch to video mode for panel-bridge enable & panel enable */
+	dw_mipi_dsi_set_mode(dsi, MIPI_DSI_MODE_VIDEO);
+	if (dsi->slave)
+		dw_mipi_dsi_set_mode(dsi->slave, MIPI_DSI_MODE_VIDEO);
+}
+
+static enum drm_mode_status
+dw_mipi_dsi_bridge_mode_valid(struct drm_bridge *bridge,
+			      const struct drm_display_info *info,
+			      const struct drm_display_mode *mode)
+{
+	struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+	const struct dw_mipi_dsi_plat_data *pdata = dsi->plat_data;
+	enum drm_mode_status mode_status = MODE_OK;
+
+	if (pdata->mode_valid)
+		mode_status = pdata->mode_valid(pdata->priv_data, mode,
+						dsi->mode_flags,
+						dw_mipi_dsi_get_lanes(dsi),
+						dsi->format);
+
+	return mode_status;
+}
+
+static int dw_mipi_dsi_bridge_attach(struct drm_bridge *bridge,
+				     enum drm_bridge_attach_flags flags)
+{
+	struct dw_mipi_dsi *dsi = bridge_to_dsi(bridge);
+
+	if (!bridge->encoder) {
+		DRM_ERROR("Parent encoder object not found\n");
+		return -ENODEV;
+	}
+
+	/* Set the encoder type as caller does not know it */
+	bridge->encoder->encoder_type = DRM_MODE_ENCODER_DSI;
+
+	/* Attach the panel-bridge to the dsi bridge */
+	return drm_bridge_attach(bridge->encoder, dsi->panel_bridge, bridge,
+				 flags);
+}
+
+static const struct drm_bridge_funcs dw_mipi_dsi_bridge_funcs = {
+	.atomic_duplicate_state	= drm_atomic_helper_bridge_duplicate_state,
+	.atomic_destroy_state	= drm_atomic_helper_bridge_destroy_state,
+	.atomic_reset		= drm_atomic_helper_bridge_reset,
+	.atomic_enable		= dw_mipi_dsi_bridge_atomic_enable,
+	.atomic_post_disable	= dw_mipi_dsi_bridge_post_atomic_disable,
+	.mode_set		= dw_mipi_dsi_bridge_mode_set,
+	.mode_valid		= dw_mipi_dsi_bridge_mode_valid,
+	.attach			= dw_mipi_dsi_bridge_attach,
+};
+
+#ifdef CONFIG_DEBUG_FS
+
+static int dw_mipi_dsi_debugfs_write(void *data, u64 val)
+{
+	struct debugfs_entries *vpg = data;
+	struct dw_mipi_dsi *dsi;
+	u32 mode_cfg;
+
+	if (!vpg)
+		return -ENODEV;
+
+	dsi = vpg->dsi;
+
+	*vpg->reg = (bool)val;
+
+	mode_cfg = dsi_read(dsi, DSI_VID_MODE_CFG);
+
+	if (*vpg->reg)
+		mode_cfg |= vpg->mask;
+	else
+		mode_cfg &= ~vpg->mask;
+
+	dsi_write(dsi, DSI_VID_MODE_CFG, mode_cfg);
+
+	return 0;
+}
+
+static int dw_mipi_dsi_debugfs_show(void *data, u64 *val)
+{
+	struct debugfs_entries *vpg = data;
+
+	if (!vpg)
+		return -ENODEV;
+
+	*val = *vpg->reg;
+
+	return 0;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(fops_x32, dw_mipi_dsi_debugfs_show,
+			 dw_mipi_dsi_debugfs_write, "%llu\n");
+
+static void debugfs_create_files(void *data)
+{
+	struct dw_mipi_dsi *dsi = data;
+	struct debugfs_entries debugfs[] = {
+		REGISTER(vpg, VID_MODE_VPG_ENABLE, dsi),
+		REGISTER(vpg_horizontal, VID_MODE_VPG_HORIZONTAL, dsi),
+		REGISTER(vpg_ber_pattern, VID_MODE_VPG_MODE, dsi),
+	};
+	int i;
+
+	dsi->debugfs_vpg = kmemdup(debugfs, sizeof(debugfs), GFP_KERNEL);
+	if (!dsi->debugfs_vpg)
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(debugfs); i++)
+		debugfs_create_file(dsi->debugfs_vpg[i].name, 0644,
+				    dsi->debugfs, &dsi->debugfs_vpg[i],
+				    &fops_x32);
+}
+
+static void dw_mipi_dsi_debugfs_init(struct dw_mipi_dsi *dsi)
+{
+	dsi->debugfs = debugfs_create_dir(dev_name(dsi->dev), NULL);
+	if (IS_ERR(dsi->debugfs)) {
+		dev_err(dsi->dev, "failed to create debugfs root\n");
+		return;
+	}
+
+	debugfs_create_files(dsi);
+}
+
+static void dw_mipi_dsi_debugfs_remove(struct dw_mipi_dsi *dsi)
+{
+	debugfs_remove_recursive(dsi->debugfs);
+	kfree(dsi->debugfs_vpg);
+}
+
+#else
+
+static void dw_mipi_dsi_debugfs_init(struct dw_mipi_dsi *dsi) { }
+static void dw_mipi_dsi_debugfs_remove(struct dw_mipi_dsi *dsi) { }
+
+#endif /* CONFIG_DEBUG_FS */
+
+static struct dw_mipi_dsi *
+__dw_mipi_dsi_probe(struct platform_device *pdev,
+		    const struct dw_mipi_dsi_plat_data *plat_data)
+{
+	struct device *dev = &pdev->dev;
+	struct reset_control *apb_rst;
+	struct dw_mipi_dsi *dsi;
+	int ret;
+
+	dsi = devm_kzalloc(dev, sizeof(*dsi), GFP_KERNEL);
+	if (!dsi)
+		return ERR_PTR(-ENOMEM);
+
+	dsi->dev = dev;
+	dsi->plat_data = plat_data;
+
+	if (!plat_data->phy_ops->init || !plat_data->phy_ops->get_lane_mbps ||
+	    !plat_data->phy_ops->get_timing) {
+		DRM_ERROR("Phy not properly configured\n");
+		return ERR_PTR(-ENODEV);
+	}
+
+	if (!plat_data->base) {
+		dsi->base = devm_platform_ioremap_resource(pdev, 0);
+		if (IS_ERR(dsi->base))
+			return ERR_PTR(-ENODEV);
+
+	} else {
+		dsi->base = plat_data->base;
+	}
+
+	dsi->pclk = devm_clk_get(dev, "pclk");
+	if (IS_ERR(dsi->pclk)) {
+		ret = PTR_ERR(dsi->pclk);
+		dev_err(dev, "Unable to get pclk: %d\n", ret);
+		return ERR_PTR(ret);
+	}
+
+	/*
+	 * Note that the reset was not defined in the initial device tree, so
+	 * we have to be prepared for it not being found.
+	 */
+	apb_rst = devm_reset_control_get_optional_exclusive(dev, "apb");
+	if (IS_ERR(apb_rst)) {
+		ret = PTR_ERR(apb_rst);
+
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "Unable to get reset control: %d\n", ret);
+
+		return ERR_PTR(ret);
+	}
+
+	if (apb_rst) {
+		ret = clk_prepare_enable(dsi->pclk);
+		if (ret) {
+			dev_err(dev, "%s: Failed to enable pclk\n", __func__);
+			return ERR_PTR(ret);
+		}
+
+		reset_control_assert(apb_rst);
+		usleep_range(10, 20);
+		reset_control_deassert(apb_rst);
+
+		clk_disable_unprepare(dsi->pclk);
+	}
+
+	dw_mipi_dsi_debugfs_init(dsi);
+	pm_runtime_enable(dev);
+
+	dsi->dsi_host.ops = &dw_mipi_dsi_host_ops;
+	dsi->dsi_host.dev = dev;
+	ret = mipi_dsi_host_register(&dsi->dsi_host);
+	if (ret) {
+		dev_err(dev, "Failed to register MIPI host: %d\n", ret);
+		pm_runtime_disable(dev);
+		dw_mipi_dsi_debugfs_remove(dsi);
+		return ERR_PTR(ret);
+	}
+
+	dsi->bridge.driver_private = dsi;
+	dsi->bridge.funcs = &dw_mipi_dsi_bridge_funcs;
+#ifdef CONFIG_OF
+	dsi->bridge.of_node = pdev->dev.of_node;
+#endif
+
+	return dsi;
+}
+
+static void __dw_mipi_dsi_remove(struct dw_mipi_dsi *dsi)
+{
+	mipi_dsi_host_unregister(&dsi->dsi_host);
+
+	pm_runtime_disable(dsi->dev);
+	dw_mipi_dsi_debugfs_remove(dsi);
+}
+
+void dw_mipi_dsi_set_slave(struct dw_mipi_dsi *dsi, struct dw_mipi_dsi *slave)
+{
+	/* introduce controllers to each other */
+	dsi->slave = slave;
+	dsi->slave->master = dsi;
+
+	/* migrate settings for already attached displays */
+	dsi->slave->lanes = dsi->lanes;
+	dsi->slave->channel = dsi->channel;
+	dsi->slave->format = dsi->format;
+	dsi->slave->mode_flags = dsi->mode_flags;
+}
+EXPORT_SYMBOL_GPL(dw_mipi_dsi_set_slave);
+
+/*
+ * Probe/remove API, used from platforms based on the DRM bridge API.
+ */
+struct dw_mipi_dsi *
+dw_mipi_dsi_probe(struct platform_device *pdev,
+		  const struct dw_mipi_dsi_plat_data *plat_data)
+{
+	return __dw_mipi_dsi_probe(pdev, plat_data);
+}
+EXPORT_SYMBOL_GPL(dw_mipi_dsi_probe);
+
+void dw_mipi_dsi_remove(struct dw_mipi_dsi *dsi)
+{
+	__dw_mipi_dsi_remove(dsi);
+}
+EXPORT_SYMBOL_GPL(dw_mipi_dsi_remove);
+
+/*
+ * Bind/unbind API, used from platforms based on the component framework.
+ */
+int dw_mipi_dsi_bind(struct dw_mipi_dsi *dsi, struct drm_encoder *encoder)
+{
+	return drm_bridge_attach(encoder, &dsi->bridge, NULL, 0);
+}
+EXPORT_SYMBOL_GPL(dw_mipi_dsi_bind);
+
+void dw_mipi_dsi_unbind(struct dw_mipi_dsi *dsi)
+{
+}
+EXPORT_SYMBOL_GPL(dw_mipi_dsi_unbind);
+
+MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
+MODULE_AUTHOR("Philippe Cornu <philippe.cornu@st.com>");
+MODULE_DESCRIPTION("DW MIPI DSI host controller driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:dw-mipi-dsi");