Merge tag 'asoc-v4.5' into asoc-next

ASoC: Updates for v4.5

This is quite a busy release on the driver front with a lot of new
drivers being added but comparatively quiet on the core side with only
one big change going in and that a fairly straightforward refactoring.

 - Conversion of the array of DAI links to a list by Mengdong Lin,
   supporting dynamically adding and removing DAI links.
 - Some more fixes for the topology code, though it is still not final
   and ready for enabling in production.  We really need to get to the
   point where that can be done.
 - A pile of changes for Intel SkyLake drivers which hopefully deliver
   some useful initial functionality for systems with this chipset,
   though there is more work still to come.
 - New drivers for a number of Imagination Technologies IPs.
 - Lots of new features and cleanups for the Renesas drivers.
 - ANC support for WM5110.
 - New driver for Atmel class D speaker drivers.
 - New drivers for Cirrus CS47L24 and WM1831.
 - New driver for Dialog DA7128.
 - New drivers for Realtek RT5659 and RT56156.
 - New driver for Rockchip RK3036.
 - New driver for TI PC3168A

# gpg: Signature made Wed 23 Dec 2015 00:42:40 GMT using RSA key ID 5D5487D0
# gpg: Good signature from "Mark Brown <broonie@sirena.org.uk>"
# gpg:                 aka "Mark Brown <broonie@debian.org>"
# gpg:                 aka "Mark Brown <broonie@kernel.org>"
# gpg:                 aka "Mark Brown <broonie@tardis.ed.ac.uk>"
# gpg:                 aka "Mark Brown <broonie@linaro.org>"
# gpg:                 aka "Mark Brown <Mark.Brown@linaro.org>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 3F25 68AA C269 98F9 E813  A1C5 C3F4 36CA 30F5 D8EB
#      Subkey fingerprint: ADE6 68AA 6757 18B5 9FE2  9FEA 24D6 8B72 5D54 87D0

8 files changed, 3001 insertions, 0 deletions

diff --git a/sound/soc/img/Kconfig b/sound/soc/img/Kconfig
new file mode 100644
index 000000000000..857a9510ee1c
--- /dev/null
+++ b/sound/soc/img/Kconfig
@@ -0,0 +1,52 @@
+config SND_SOC_IMG
+	bool "Audio support for Imagination Technologies designs"
+	help
+	  Audio support for Imagination Technologies audio hardware
+
+config SND_SOC_IMG_I2S_IN
+	tristate "Imagination I2S Input Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for I2S in driver for
+	  Imagination Technologies I2S in device.
+
+config SND_SOC_IMG_I2S_OUT
+	tristate "Imagination I2S Output Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for I2S out driver for
+	  Imagination Technologies I2S out device.
+
+config SND_SOC_IMG_PARALLEL_OUT
+	tristate "Imagination Parallel Output Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for parallel out driver for
+	  Imagination Technologies parallel out device.
+
+config SND_SOC_IMG_SPDIF_IN
+	tristate "Imagination SPDIF Input Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for SPDIF input driver for
+	  Imagination Technologies SPDIF input device.
+
+config SND_SOC_IMG_SPDIF_OUT
+	tristate "Imagination SPDIF Output Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for SPDIF out driver for
+	  Imagination Technologies SPDIF out device.
+
+
+config SND_SOC_IMG_PISTACHIO_INTERNAL_DAC
+	tristate "Support for Pistachio SoC Internal DAC Driver"
+	depends on SND_SOC_IMG
+	help
+	  Say Y or M if you want to add support for Pistachio internal DAC
+	  driver for Imagination Technologies Pistachio internal DAC device.
diff --git a/sound/soc/img/Makefile b/sound/soc/img/Makefile
new file mode 100644
index 000000000000..0508c1ced636
--- /dev/null
+++ b/sound/soc/img/Makefile
@@ -0,0 +1,7 @@
+obj-$(CONFIG_SND_SOC_IMG_I2S_IN) += img-i2s-in.o
+obj-$(CONFIG_SND_SOC_IMG_I2S_OUT) += img-i2s-out.o
+obj-$(CONFIG_SND_SOC_IMG_PARALLEL_OUT) += img-parallel-out.o
+obj-$(CONFIG_SND_SOC_IMG_SPDIF_IN) += img-spdif-in.o
+obj-$(CONFIG_SND_SOC_IMG_SPDIF_OUT) += img-spdif-out.o
+
+obj-$(CONFIG_SND_SOC_IMG_PISTACHIO_INTERNAL_DAC) += pistachio-internal-dac.o
diff --git a/sound/soc/img/img-i2s-in.c b/sound/soc/img/img-i2s-in.c
new file mode 100644
index 000000000000..0389203f8560
--- /dev/null
+++ b/sound/soc/img/img-i2s-in.c
@@ -0,0 +1,516 @@
+/*
+ * IMG I2S input controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_I2S_IN_RX_FIFO			0x0
+
+#define IMG_I2S_IN_CTL				0x4
+#define IMG_I2S_IN_CTL_ACTIVE_CHAN_MASK		0xfffffffc
+#define IMG_I2S_IN_CTL_ACTIVE_CH_SHIFT		2
+#define IMG_I2S_IN_CTL_16PACK_MASK		BIT(1)
+#define IMG_I2S_IN_CTL_ME_MASK			BIT(0)
+
+#define IMG_I2S_IN_CH_CTL			0x4
+#define IMG_I2S_IN_CH_CTL_CCDEL_MASK		0x38000
+#define IMG_I2S_IN_CH_CTL_CCDEL_SHIFT		15
+#define IMG_I2S_IN_CH_CTL_FEN_MASK		BIT(14)
+#define IMG_I2S_IN_CH_CTL_FMODE_MASK		BIT(13)
+#define IMG_I2S_IN_CH_CTL_16PACK_MASK		BIT(12)
+#define IMG_I2S_IN_CH_CTL_JUST_MASK		BIT(10)
+#define IMG_I2S_IN_CH_CTL_PACKH_MASK		BIT(9)
+#define IMG_I2S_IN_CH_CTL_CLK_TRANS_MASK	BIT(8)
+#define IMG_I2S_IN_CH_CTL_BLKP_MASK		BIT(7)
+#define IMG_I2S_IN_CH_CTL_FIFO_FLUSH_MASK	BIT(6)
+#define IMG_I2S_IN_CH_CTL_LRD_MASK		BIT(3)
+#define IMG_I2S_IN_CH_CTL_FW_MASK		BIT(2)
+#define IMG_I2S_IN_CH_CTL_SW_MASK		BIT(1)
+#define IMG_I2S_IN_CH_CTL_ME_MASK		BIT(0)
+
+#define IMG_I2S_IN_CH_STRIDE			0x20
+
+struct img_i2s_in {
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	unsigned int max_i2s_chan;
+	void __iomem *channel_base;
+	unsigned int active_channels;
+	struct snd_soc_dai_driver dai_driver;
+};
+
+static inline void img_i2s_in_writel(struct img_i2s_in *i2s, u32 val, u32 reg)
+{
+	writel(val, i2s->base + reg);
+}
+
+static inline u32 img_i2s_in_readl(struct img_i2s_in *i2s, u32 reg)
+{
+	return readl(i2s->base + reg);
+}
+
+static inline void img_i2s_in_ch_writel(struct img_i2s_in *i2s, u32 chan,
+					u32 val, u32 reg)
+{
+	writel(val, i2s->channel_base + (chan * IMG_I2S_IN_CH_STRIDE) + reg);
+}
+
+static inline u32 img_i2s_in_ch_readl(struct img_i2s_in *i2s, u32 chan,
+					u32 reg)
+{
+	return readl(i2s->channel_base + (chan * IMG_I2S_IN_CH_STRIDE) + reg);
+}
+
+static inline void img_i2s_in_ch_disable(struct img_i2s_in *i2s, u32 chan)
+{
+	u32 reg;
+
+	reg = img_i2s_in_ch_readl(i2s, chan, IMG_I2S_IN_CH_CTL);
+	reg &= ~IMG_I2S_IN_CH_CTL_ME_MASK;
+	img_i2s_in_ch_writel(i2s, chan, reg, IMG_I2S_IN_CH_CTL);
+}
+
+static inline void img_i2s_in_ch_enable(struct img_i2s_in *i2s, u32 chan)
+{
+	u32 reg;
+
+	reg = img_i2s_in_ch_readl(i2s, chan, IMG_I2S_IN_CH_CTL);
+	reg |= IMG_I2S_IN_CH_CTL_ME_MASK;
+	img_i2s_in_ch_writel(i2s, chan, reg, IMG_I2S_IN_CH_CTL);
+}
+
+static inline void img_i2s_in_disable(struct img_i2s_in *i2s)
+{
+	u32 reg;
+
+	reg = img_i2s_in_readl(i2s, IMG_I2S_IN_CTL);
+	reg &= ~IMG_I2S_IN_CTL_ME_MASK;
+	img_i2s_in_writel(i2s, reg, IMG_I2S_IN_CTL);
+}
+
+static inline void img_i2s_in_enable(struct img_i2s_in *i2s)
+{
+	u32 reg;
+
+	reg = img_i2s_in_readl(i2s, IMG_I2S_IN_CTL);
+	reg |= IMG_I2S_IN_CTL_ME_MASK;
+	img_i2s_in_writel(i2s, reg, IMG_I2S_IN_CTL);
+}
+
+static inline void img_i2s_in_flush(struct img_i2s_in *i2s)
+{
+	int i;
+	u32 reg;
+
+	for (i = 0; i < i2s->active_channels; i++) {
+		reg = img_i2s_in_ch_readl(i2s, i, IMG_I2S_IN_CH_CTL);
+		reg |= IMG_I2S_IN_CH_CTL_FIFO_FLUSH_MASK;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+		reg &= ~IMG_I2S_IN_CH_CTL_FIFO_FLUSH_MASK;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+	}
+}
+
+static int img_i2s_in_trigger(struct snd_pcm_substream *substream, int cmd,
+	struct snd_soc_dai *dai)
+{
+	struct img_i2s_in *i2s = snd_soc_dai_get_drvdata(dai);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		img_i2s_in_enable(i2s);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		img_i2s_in_disable(i2s);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_i2s_in_check_rate(struct img_i2s_in *i2s,
+		unsigned int sample_rate, unsigned int frame_size,
+		unsigned int *bclk_filter_enable,
+		unsigned int *bclk_filter_value)
+{
+	unsigned int bclk_freq, cur_freq;
+
+	bclk_freq = sample_rate * frame_size;
+
+	cur_freq = clk_get_rate(i2s->clk_sys);
+
+	if (cur_freq >= bclk_freq * 8) {
+		*bclk_filter_enable = 1;
+		*bclk_filter_value = 0;
+	} else if (cur_freq >= bclk_freq * 7) {
+		*bclk_filter_enable = 1;
+		*bclk_filter_value = 1;
+	} else if (cur_freq >= bclk_freq * 6) {
+		*bclk_filter_enable = 0;
+		*bclk_filter_value = 0;
+	} else {
+		dev_err(i2s->dev,
+			"Sys clock rate %u insufficient for sample rate %u\n",
+			cur_freq, sample_rate);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_i2s_in_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_i2s_in *i2s = snd_soc_dai_get_drvdata(dai);
+	unsigned int rate, channels, i2s_channels, frame_size;
+	unsigned int bclk_filter_enable, bclk_filter_value;
+	int i, ret = 0;
+	u32 reg, control_mask, chan_control_mask;
+	u32 control_set = 0, chan_control_set = 0;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	format = params_format(params);
+	channels = params_channels(params);
+	i2s_channels = channels / 2;
+
+	switch (format) {
+	case SNDRV_PCM_FORMAT_S32_LE:
+		frame_size = 64;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_SW_MASK;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_FW_MASK;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_PACKH_MASK;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		frame_size = 64;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_SW_MASK;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_FW_MASK;
+		break;
+	case SNDRV_PCM_FORMAT_S16_LE:
+		frame_size = 32;
+		control_set |= IMG_I2S_IN_CTL_16PACK_MASK;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_16PACK_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if ((channels < 2) ||
+	    (channels > (i2s->max_i2s_chan * 2)) ||
+	    (channels % 2))
+		return -EINVAL;
+
+	control_set |= ((i2s_channels - 1) << IMG_I2S_IN_CTL_ACTIVE_CH_SHIFT);
+
+	ret = img_i2s_in_check_rate(i2s, rate, frame_size,
+			&bclk_filter_enable, &bclk_filter_value);
+	if (ret < 0)
+		return ret;
+
+	if (bclk_filter_enable)
+		chan_control_set |= IMG_I2S_IN_CH_CTL_FEN_MASK;
+
+	if (bclk_filter_value)
+		chan_control_set |= IMG_I2S_IN_CH_CTL_FMODE_MASK;
+
+	control_mask = IMG_I2S_IN_CTL_16PACK_MASK |
+		       IMG_I2S_IN_CTL_ACTIVE_CHAN_MASK;
+
+	chan_control_mask = IMG_I2S_IN_CH_CTL_16PACK_MASK |
+			    IMG_I2S_IN_CH_CTL_FEN_MASK |
+			    IMG_I2S_IN_CH_CTL_FMODE_MASK |
+			    IMG_I2S_IN_CH_CTL_SW_MASK |
+			    IMG_I2S_IN_CH_CTL_FW_MASK |
+			    IMG_I2S_IN_CH_CTL_PACKH_MASK;
+
+	reg = img_i2s_in_readl(i2s, IMG_I2S_IN_CTL);
+	reg = (reg & ~control_mask) | control_set;
+	img_i2s_in_writel(i2s, reg, IMG_I2S_IN_CTL);
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_in_ch_disable(i2s, i);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++) {
+		reg = img_i2s_in_ch_readl(i2s, i, IMG_I2S_IN_CH_CTL);
+		reg = (reg & ~chan_control_mask) | chan_control_set;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+	}
+
+	i2s->active_channels = i2s_channels;
+
+	img_i2s_in_flush(i2s);
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_in_ch_enable(i2s, i);
+
+	return 0;
+}
+
+static int img_i2s_in_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct img_i2s_in *i2s = snd_soc_dai_get_drvdata(dai);
+	int i;
+	u32 chan_control_mask, lrd_set = 0, blkp_set = 0, chan_control_set = 0;
+	u32 reg;
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		lrd_set |= IMG_I2S_IN_CH_CTL_LRD_MASK;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		lrd_set |= IMG_I2S_IN_CH_CTL_LRD_MASK;
+		blkp_set |= IMG_I2S_IN_CH_CTL_BLKP_MASK;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		blkp_set |= IMG_I2S_IN_CH_CTL_BLKP_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		chan_control_set |= IMG_I2S_IN_CH_CTL_CLK_TRANS_MASK;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	chan_control_mask = IMG_I2S_IN_CH_CTL_CLK_TRANS_MASK;
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_in_ch_disable(i2s, i);
+
+	/*
+	 * BLKP and LRD must be set during separate register writes
+	 */
+	for (i = 0; i < i2s->max_i2s_chan; i++) {
+		reg = img_i2s_in_ch_readl(i2s, i, IMG_I2S_IN_CH_CTL);
+		reg = (reg & ~chan_control_mask) | chan_control_set;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+		reg = (reg & ~IMG_I2S_IN_CH_CTL_BLKP_MASK) | blkp_set;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+		reg = (reg & ~IMG_I2S_IN_CH_CTL_LRD_MASK) | lrd_set;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+	}
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_in_ch_enable(i2s, i);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops img_i2s_in_dai_ops = {
+	.trigger = img_i2s_in_trigger,
+	.hw_params = img_i2s_in_hw_params,
+	.set_fmt = img_i2s_in_set_fmt
+};
+
+static int img_i2s_in_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_i2s_in *i2s = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, NULL, &i2s->dma_data);
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver img_i2s_in_component = {
+	.name = "img-i2s-in"
+};
+
+static int img_i2s_in_dma_prepare_slave_config(struct snd_pcm_substream *st,
+	struct snd_pcm_hw_params *params, struct dma_slave_config *sc)
+{
+	unsigned int i2s_channels = params_channels(params) / 2;
+	struct snd_soc_pcm_runtime *rtd = st->private_data;
+	struct snd_dmaengine_dai_dma_data *dma_data;
+	int ret;
+
+	dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, st);
+
+	ret = snd_hwparams_to_dma_slave_config(st, params, sc);
+	if (ret)
+		return ret;
+
+	sc->src_addr = dma_data->addr;
+	sc->src_addr_width = dma_data->addr_width;
+	sc->src_maxburst = 4 * i2s_channels;
+
+	return 0;
+}
+
+static const struct snd_dmaengine_pcm_config img_i2s_in_dma_config = {
+	.prepare_slave_config = img_i2s_in_dma_prepare_slave_config
+};
+
+static int img_i2s_in_probe(struct platform_device *pdev)
+{
+	struct img_i2s_in *i2s;
+	struct resource *res;
+	void __iomem *base;
+	int ret, i;
+	struct reset_control *rst;
+	unsigned int max_i2s_chan_pow_2;
+	struct device *dev = &pdev->dev;
+
+	i2s = devm_kzalloc(dev, sizeof(*i2s), GFP_KERNEL);
+	if (!i2s)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, i2s);
+
+	i2s->dev = dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	i2s->base = base;
+
+	if (of_property_read_u32(pdev->dev.of_node, "img,i2s-channels",
+			&i2s->max_i2s_chan)) {
+		dev_err(dev, "No img,i2s-channels property\n");
+		return -EINVAL;
+	}
+
+	max_i2s_chan_pow_2 = 1 << get_count_order(i2s->max_i2s_chan);
+
+	i2s->channel_base = base + (max_i2s_chan_pow_2 * 0x20);
+
+	i2s->clk_sys = devm_clk_get(dev, "sys");
+	if (IS_ERR(i2s->clk_sys)) {
+		if (PTR_ERR(i2s->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(i2s->clk_sys);
+	}
+
+	ret = clk_prepare_enable(i2s->clk_sys);
+	if (ret)
+		return ret;
+
+	i2s->active_channels = 1;
+	i2s->dma_data.addr = res->start + IMG_I2S_IN_RX_FIFO;
+	i2s->dma_data.addr_width = 4;
+
+	i2s->dai_driver.probe = img_i2s_in_dai_probe;
+	i2s->dai_driver.capture.channels_min = 2;
+	i2s->dai_driver.capture.channels_max = i2s->max_i2s_chan * 2;
+	i2s->dai_driver.capture.rates = SNDRV_PCM_RATE_8000_192000;
+	i2s->dai_driver.capture.formats = SNDRV_PCM_FMTBIT_S32_LE |
+		SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE;
+	i2s->dai_driver.ops = &img_i2s_in_dai_ops;
+
+	rst = devm_reset_control_get(dev, "rst");
+	if (IS_ERR(rst)) {
+		if (PTR_ERR(rst) == -EPROBE_DEFER) {
+			ret = -EPROBE_DEFER;
+			goto err_clk_disable;
+		}
+
+		dev_dbg(dev, "No top level reset found\n");
+
+		img_i2s_in_disable(i2s);
+
+		for (i = 0; i < i2s->max_i2s_chan; i++)
+			img_i2s_in_ch_disable(i2s, i);
+	} else {
+		reset_control_assert(rst);
+		reset_control_deassert(rst);
+	}
+
+	img_i2s_in_writel(i2s, 0, IMG_I2S_IN_CTL);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++)
+		img_i2s_in_ch_writel(i2s, i,
+			(4 << IMG_I2S_IN_CH_CTL_CCDEL_SHIFT) |
+			IMG_I2S_IN_CH_CTL_JUST_MASK |
+			IMG_I2S_IN_CH_CTL_FW_MASK, IMG_I2S_IN_CH_CTL);
+
+	ret = devm_snd_soc_register_component(dev, &img_i2s_in_component,
+						&i2s->dai_driver, 1);
+	if (ret)
+		goto err_clk_disable;
+
+	ret = devm_snd_dmaengine_pcm_register(dev, &img_i2s_in_dma_config, 0);
+	if (ret)
+		goto err_clk_disable;
+
+	return 0;
+
+err_clk_disable:
+	clk_disable_unprepare(i2s->clk_sys);
+
+	return ret;
+}
+
+static int img_i2s_in_dev_remove(struct platform_device *pdev)
+{
+	struct img_i2s_in *i2s = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(i2s->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_i2s_in_of_match[] = {
+	{ .compatible = "img,i2s-in" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_i2s_in_of_match);
+
+static struct platform_driver img_i2s_in_driver = {
+	.driver = {
+		.name = "img-i2s-in",
+		.of_match_table = img_i2s_in_of_match
+	},
+	.probe = img_i2s_in_probe,
+	.remove = img_i2s_in_dev_remove
+};
+module_platform_driver(img_i2s_in_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG I2S Input Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/img/img-i2s-out.c b/sound/soc/img/img-i2s-out.c
new file mode 100644
index 000000000000..5f997135a8ae
--- /dev/null
+++ b/sound/soc/img/img-i2s-out.c
@@ -0,0 +1,565 @@
+/*
+ * IMG I2S output controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_I2S_OUT_TX_FIFO			0x0
+
+#define IMG_I2S_OUT_CTL				0x4
+#define IMG_I2S_OUT_CTL_DATA_EN_MASK		BIT(24)
+#define IMG_I2S_OUT_CTL_ACTIVE_CHAN_MASK	0xffe000
+#define IMG_I2S_OUT_CTL_ACTIVE_CHAN_SHIFT	13
+#define IMG_I2S_OUT_CTL_FRM_SIZE_MASK		BIT(8)
+#define IMG_I2S_OUT_CTL_MASTER_MASK		BIT(6)
+#define IMG_I2S_OUT_CTL_CLK_MASK		BIT(5)
+#define IMG_I2S_OUT_CTL_CLK_EN_MASK		BIT(4)
+#define IMG_I2S_OUT_CTL_FRM_CLK_POL_MASK	BIT(3)
+#define IMG_I2S_OUT_CTL_BCLK_POL_MASK		BIT(2)
+#define IMG_I2S_OUT_CTL_ME_MASK			BIT(0)
+
+#define IMG_I2S_OUT_CH_CTL			0x4
+#define IMG_I2S_OUT_CHAN_CTL_CH_MASK		BIT(11)
+#define IMG_I2S_OUT_CHAN_CTL_LT_MASK		BIT(10)
+#define IMG_I2S_OUT_CHAN_CTL_FMT_MASK		0xf0
+#define IMG_I2S_OUT_CHAN_CTL_FMT_SHIFT		4
+#define IMG_I2S_OUT_CHAN_CTL_JUST_MASK		BIT(3)
+#define IMG_I2S_OUT_CHAN_CTL_CLKT_MASK		BIT(1)
+#define IMG_I2S_OUT_CHAN_CTL_ME_MASK		BIT(0)
+
+#define IMG_I2S_OUT_CH_STRIDE			0x20
+
+struct img_i2s_out {
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct clk *clk_ref;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	unsigned int max_i2s_chan;
+	void __iomem *channel_base;
+	bool force_clk_active;
+	unsigned int active_channels;
+	struct reset_control *rst;
+	struct snd_soc_dai_driver dai_driver;
+};
+
+static int img_i2s_out_suspend(struct device *dev)
+{
+	struct img_i2s_out *i2s = dev_get_drvdata(dev);
+
+	if (!i2s->force_clk_active)
+		clk_disable_unprepare(i2s->clk_ref);
+
+	return 0;
+}
+
+static int img_i2s_out_resume(struct device *dev)
+{
+	struct img_i2s_out *i2s = dev_get_drvdata(dev);
+	int ret;
+
+	if (!i2s->force_clk_active) {
+		ret = clk_prepare_enable(i2s->clk_ref);
+		if (ret) {
+			dev_err(dev, "clk_enable failed: %d\n", ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static inline void img_i2s_out_writel(struct img_i2s_out *i2s, u32 val,
+					u32 reg)
+{
+	writel(val, i2s->base + reg);
+}
+
+static inline u32 img_i2s_out_readl(struct img_i2s_out *i2s, u32 reg)
+{
+	return readl(i2s->base + reg);
+}
+
+static inline void img_i2s_out_ch_writel(struct img_i2s_out *i2s,
+					u32 chan, u32 val, u32 reg)
+{
+	writel(val, i2s->channel_base + (chan * IMG_I2S_OUT_CH_STRIDE) + reg);
+}
+
+static inline u32 img_i2s_out_ch_readl(struct img_i2s_out *i2s, u32 chan,
+					u32 reg)
+{
+	return readl(i2s->channel_base + (chan * IMG_I2S_OUT_CH_STRIDE) + reg);
+}
+
+static inline void img_i2s_out_ch_disable(struct img_i2s_out *i2s, u32 chan)
+{
+	u32 reg;
+
+	reg = img_i2s_out_ch_readl(i2s, chan, IMG_I2S_OUT_CH_CTL);
+	reg &= ~IMG_I2S_OUT_CHAN_CTL_ME_MASK;
+	img_i2s_out_ch_writel(i2s, chan, reg, IMG_I2S_OUT_CH_CTL);
+}
+
+static inline void img_i2s_out_ch_enable(struct img_i2s_out *i2s, u32 chan)
+{
+	u32 reg;
+
+	reg = img_i2s_out_ch_readl(i2s, chan, IMG_I2S_OUT_CH_CTL);
+	reg |= IMG_I2S_OUT_CHAN_CTL_ME_MASK;
+	img_i2s_out_ch_writel(i2s, chan, reg, IMG_I2S_OUT_CH_CTL);
+}
+
+static inline void img_i2s_out_disable(struct img_i2s_out *i2s)
+{
+	u32 reg;
+
+	reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+	reg &= ~IMG_I2S_OUT_CTL_ME_MASK;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+}
+
+static inline void img_i2s_out_enable(struct img_i2s_out *i2s)
+{
+	u32 reg;
+
+	reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+	reg |= IMG_I2S_OUT_CTL_ME_MASK;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+}
+
+static void img_i2s_out_reset(struct img_i2s_out *i2s)
+{
+	int i;
+	u32 core_ctl, chan_ctl;
+
+	core_ctl = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL) &
+			~IMG_I2S_OUT_CTL_ME_MASK &
+			~IMG_I2S_OUT_CTL_DATA_EN_MASK;
+
+	if (!i2s->force_clk_active)
+		core_ctl &= ~IMG_I2S_OUT_CTL_CLK_EN_MASK;
+
+	chan_ctl = img_i2s_out_ch_readl(i2s, 0, IMG_I2S_OUT_CH_CTL) &
+			~IMG_I2S_OUT_CHAN_CTL_ME_MASK;
+
+	reset_control_assert(i2s->rst);
+	reset_control_deassert(i2s->rst);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++)
+		img_i2s_out_ch_writel(i2s, i, chan_ctl, IMG_I2S_OUT_CH_CTL);
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_out_ch_enable(i2s, i);
+
+	img_i2s_out_writel(i2s, core_ctl, IMG_I2S_OUT_CTL);
+	img_i2s_out_enable(i2s);
+}
+
+static int img_i2s_out_trigger(struct snd_pcm_substream *substream, int cmd,
+	struct snd_soc_dai *dai)
+{
+	struct img_i2s_out *i2s = snd_soc_dai_get_drvdata(dai);
+	u32 reg;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+		if (!i2s->force_clk_active)
+			reg |= IMG_I2S_OUT_CTL_CLK_EN_MASK;
+		reg |= IMG_I2S_OUT_CTL_DATA_EN_MASK;
+		img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		img_i2s_out_reset(i2s);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_i2s_out_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_i2s_out *i2s = snd_soc_dai_get_drvdata(dai);
+	unsigned int channels, i2s_channels;
+	long pre_div_a, pre_div_b, diff_a, diff_b, rate, clk_rate;
+	int i;
+	u32 reg, control_mask, control_set = 0;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	format = params_format(params);
+	channels = params_channels(params);
+	i2s_channels = channels / 2;
+
+	if (format != SNDRV_PCM_FORMAT_S32_LE)
+		return -EINVAL;
+
+	if ((channels < 2) ||
+	    (channels > (i2s->max_i2s_chan * 2)) ||
+	    (channels % 2))
+		return -EINVAL;
+
+	pre_div_a = clk_round_rate(i2s->clk_ref, rate * 256);
+	if (pre_div_a < 0)
+		return pre_div_a;
+	pre_div_b = clk_round_rate(i2s->clk_ref, rate * 384);
+	if (pre_div_b < 0)
+		return pre_div_b;
+
+	diff_a = abs((pre_div_a / 256) - rate);
+	diff_b = abs((pre_div_b / 384) - rate);
+
+	/* If diffs are equal, use lower clock rate */
+	if (diff_a > diff_b)
+		clk_set_rate(i2s->clk_ref, pre_div_b);
+	else
+		clk_set_rate(i2s->clk_ref, pre_div_a);
+
+	/*
+	 * Another driver (eg alsa machine driver) may have rejected the above
+	 * change. Get the current rate and set the register bit according to
+	 * the new minimum diff
+	 */
+	clk_rate = clk_get_rate(i2s->clk_ref);
+
+	diff_a = abs((clk_rate / 256) - rate);
+	diff_b = abs((clk_rate / 384) - rate);
+
+	if (diff_a > diff_b)
+		control_set |= IMG_I2S_OUT_CTL_CLK_MASK;
+
+	control_set |= ((i2s_channels - 1) <<
+		       IMG_I2S_OUT_CTL_ACTIVE_CHAN_SHIFT) &
+		       IMG_I2S_OUT_CTL_ACTIVE_CHAN_MASK;
+
+	control_mask = IMG_I2S_OUT_CTL_CLK_MASK |
+		       IMG_I2S_OUT_CTL_ACTIVE_CHAN_MASK;
+
+	img_i2s_out_disable(i2s);
+
+	reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+	reg = (reg & ~control_mask) | control_set;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+
+	for (i = 0; i < i2s_channels; i++)
+		img_i2s_out_ch_enable(i2s, i);
+
+	for (; i < i2s->max_i2s_chan; i++)
+		img_i2s_out_ch_disable(i2s, i);
+
+	img_i2s_out_enable(i2s);
+
+	i2s->active_channels = i2s_channels;
+
+	return 0;
+}
+
+static int img_i2s_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct img_i2s_out *i2s = snd_soc_dai_get_drvdata(dai);
+	int i;
+	bool force_clk_active;
+	u32 chan_control_mask, control_mask, chan_control_set = 0;
+	u32 reg, control_set = 0;
+
+	force_clk_active = ((fmt & SND_SOC_DAIFMT_CLOCK_MASK) ==
+			SND_SOC_DAIFMT_CONT);
+
+	if (force_clk_active)
+		control_set |= IMG_I2S_OUT_CTL_CLK_EN_MASK;
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		control_set |= IMG_I2S_OUT_CTL_MASTER_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		control_set |= IMG_I2S_OUT_CTL_BCLK_POL_MASK;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		control_set |= IMG_I2S_OUT_CTL_BCLK_POL_MASK;
+		control_set |= IMG_I2S_OUT_CTL_FRM_CLK_POL_MASK;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		control_set |= IMG_I2S_OUT_CTL_FRM_CLK_POL_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		chan_control_set |= IMG_I2S_OUT_CHAN_CTL_CLKT_MASK;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	control_mask = IMG_I2S_OUT_CTL_CLK_EN_MASK |
+		       IMG_I2S_OUT_CTL_MASTER_MASK |
+		       IMG_I2S_OUT_CTL_BCLK_POL_MASK |
+		       IMG_I2S_OUT_CTL_FRM_CLK_POL_MASK;
+
+	chan_control_mask = IMG_I2S_OUT_CHAN_CTL_CLKT_MASK;
+
+	img_i2s_out_disable(i2s);
+
+	reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+	reg = (reg & ~control_mask) | control_set;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_out_ch_disable(i2s, i);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++) {
+		reg = img_i2s_out_ch_readl(i2s, i, IMG_I2S_OUT_CH_CTL);
+		reg = (reg & ~chan_control_mask) | chan_control_set;
+		img_i2s_out_ch_writel(i2s, i, reg, IMG_I2S_OUT_CH_CTL);
+	}
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_out_ch_enable(i2s, i);
+
+	img_i2s_out_enable(i2s);
+
+	i2s->force_clk_active = force_clk_active;
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops img_i2s_out_dai_ops = {
+	.trigger = img_i2s_out_trigger,
+	.hw_params = img_i2s_out_hw_params,
+	.set_fmt = img_i2s_out_set_fmt
+};
+
+static int img_i2s_out_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_i2s_out *i2s = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &i2s->dma_data, NULL);
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver img_i2s_out_component = {
+	.name = "img-i2s-out"
+};
+
+static int img_i2s_out_dma_prepare_slave_config(struct snd_pcm_substream *st,
+	struct snd_pcm_hw_params *params, struct dma_slave_config *sc)
+{
+	unsigned int i2s_channels = params_channels(params) / 2;
+	struct snd_soc_pcm_runtime *rtd = st->private_data;
+	struct snd_dmaengine_dai_dma_data *dma_data;
+	int ret;
+
+	dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, st);
+
+	ret = snd_hwparams_to_dma_slave_config(st, params, sc);
+	if (ret)
+		return ret;
+
+	sc->dst_addr = dma_data->addr;
+	sc->dst_addr_width = dma_data->addr_width;
+	sc->dst_maxburst = 4 * i2s_channels;
+
+	return 0;
+}
+
+static const struct snd_dmaengine_pcm_config img_i2s_out_dma_config = {
+	.prepare_slave_config = img_i2s_out_dma_prepare_slave_config
+};
+
+static int img_i2s_out_probe(struct platform_device *pdev)
+{
+	struct img_i2s_out *i2s;
+	struct resource *res;
+	void __iomem *base;
+	int i, ret;
+	unsigned int max_i2s_chan_pow_2;
+	u32 reg;
+	struct device *dev = &pdev->dev;
+
+	i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL);
+	if (!i2s)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, i2s);
+
+	i2s->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	i2s->base = base;
+
+	if (of_property_read_u32(pdev->dev.of_node, "img,i2s-channels",
+			&i2s->max_i2s_chan)) {
+		dev_err(&pdev->dev, "No img,i2s-channels property\n");
+		return -EINVAL;
+	}
+
+	max_i2s_chan_pow_2 = 1 << get_count_order(i2s->max_i2s_chan);
+
+	i2s->channel_base = base + (max_i2s_chan_pow_2 * 0x20);
+
+	i2s->rst = devm_reset_control_get(&pdev->dev, "rst");
+	if (IS_ERR(i2s->rst)) {
+		if (PTR_ERR(i2s->rst) != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "No top level reset found\n");
+		return PTR_ERR(i2s->rst);
+	}
+
+	i2s->clk_sys = devm_clk_get(&pdev->dev, "sys");
+	if (IS_ERR(i2s->clk_sys)) {
+		if (PTR_ERR(i2s->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(i2s->clk_sys);
+	}
+
+	i2s->clk_ref = devm_clk_get(&pdev->dev, "ref");
+	if (IS_ERR(i2s->clk_ref)) {
+		if (PTR_ERR(i2s->clk_ref) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'ref'\n");
+		return PTR_ERR(i2s->clk_ref);
+	}
+
+	ret = clk_prepare_enable(i2s->clk_sys);
+	if (ret)
+		return ret;
+
+	reg = IMG_I2S_OUT_CTL_FRM_SIZE_MASK;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+
+	reg = IMG_I2S_OUT_CHAN_CTL_JUST_MASK |
+		IMG_I2S_OUT_CHAN_CTL_LT_MASK |
+		IMG_I2S_OUT_CHAN_CTL_CH_MASK |
+		(8 << IMG_I2S_OUT_CHAN_CTL_FMT_SHIFT);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++)
+		img_i2s_out_ch_writel(i2s, i, reg, IMG_I2S_OUT_CH_CTL);
+
+	img_i2s_out_reset(i2s);
+
+	pm_runtime_enable(&pdev->dev);
+	if (!pm_runtime_enabled(&pdev->dev)) {
+		ret = img_i2s_out_resume(&pdev->dev);
+		if (ret)
+			goto err_pm_disable;
+	}
+
+	i2s->active_channels = 1;
+	i2s->dma_data.addr = res->start + IMG_I2S_OUT_TX_FIFO;
+	i2s->dma_data.addr_width = 4;
+	i2s->dma_data.maxburst = 4;
+
+	i2s->dai_driver.probe = img_i2s_out_dai_probe;
+	i2s->dai_driver.playback.channels_min = 2;
+	i2s->dai_driver.playback.channels_max = i2s->max_i2s_chan * 2;
+	i2s->dai_driver.playback.rates = SNDRV_PCM_RATE_8000_192000;
+	i2s->dai_driver.playback.formats = SNDRV_PCM_FMTBIT_S32_LE;
+	i2s->dai_driver.ops = &img_i2s_out_dai_ops;
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&img_i2s_out_component, &i2s->dai_driver, 1);
+	if (ret)
+		goto err_suspend;
+
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev,
+			&img_i2s_out_dma_config, 0);
+	if (ret)
+		goto err_suspend;
+
+	return 0;
+
+err_suspend:
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_i2s_out_suspend(&pdev->dev);
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	clk_disable_unprepare(i2s->clk_sys);
+
+	return ret;
+}
+
+static int img_i2s_out_dev_remove(struct platform_device *pdev)
+{
+	struct img_i2s_out *i2s = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_i2s_out_suspend(&pdev->dev);
+
+	clk_disable_unprepare(i2s->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_i2s_out_of_match[] = {
+	{ .compatible = "img,i2s-out" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_i2s_out_of_match);
+
+static const struct dev_pm_ops img_i2s_out_pm_ops = {
+	SET_RUNTIME_PM_OPS(img_i2s_out_suspend,
+			   img_i2s_out_resume, NULL)
+};
+
+static struct platform_driver img_i2s_out_driver = {
+	.driver = {
+		.name = "img-i2s-out",
+		.of_match_table = img_i2s_out_of_match,
+		.pm = &img_i2s_out_pm_ops
+	},
+	.probe = img_i2s_out_probe,
+	.remove = img_i2s_out_dev_remove
+};
+module_platform_driver(img_i2s_out_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG I2S Output Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/img/img-parallel-out.c b/sound/soc/img/img-parallel-out.c
new file mode 100644
index 000000000000..c1610a054d65
--- /dev/null
+++ b/sound/soc/img/img-parallel-out.c
@@ -0,0 +1,327 @@
+/*
+ * IMG parallel output controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_PRL_OUT_TX_FIFO		0
+
+#define IMG_PRL_OUT_CTL			0x4
+#define IMG_PRL_OUT_CTL_CH_MASK		BIT(4)
+#define IMG_PRL_OUT_CTL_PACKH_MASK	BIT(3)
+#define IMG_PRL_OUT_CTL_EDGE_MASK	BIT(2)
+#define IMG_PRL_OUT_CTL_ME_MASK		BIT(1)
+#define IMG_PRL_OUT_CTL_SRST_MASK	BIT(0)
+
+struct img_prl_out {
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct clk *clk_ref;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	struct reset_control *rst;
+};
+
+static int img_prl_out_suspend(struct device *dev)
+{
+	struct img_prl_out *prl = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(prl->clk_ref);
+
+	return 0;
+}
+
+static int img_prl_out_resume(struct device *dev)
+{
+	struct img_prl_out *prl = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(prl->clk_ref);
+	if (ret) {
+		dev_err(dev, "clk_enable failed: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static inline void img_prl_out_writel(struct img_prl_out *prl,
+				u32 val, u32 reg)
+{
+	writel(val, prl->base + reg);
+}
+
+static inline u32 img_prl_out_readl(struct img_prl_out *prl, u32 reg)
+{
+	return readl(prl->base + reg);
+}
+
+static void img_prl_out_reset(struct img_prl_out *prl)
+{
+	u32 ctl;
+
+	ctl = img_prl_out_readl(prl, IMG_PRL_OUT_CTL) &
+			~IMG_PRL_OUT_CTL_ME_MASK;
+
+	reset_control_assert(prl->rst);
+	reset_control_deassert(prl->rst);
+
+	img_prl_out_writel(prl, ctl, IMG_PRL_OUT_CTL);
+}
+
+static int img_prl_out_trigger(struct snd_pcm_substream *substream, int cmd,
+			struct snd_soc_dai *dai)
+{
+	struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai);
+	u32 reg;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL);
+		reg |= IMG_PRL_OUT_CTL_ME_MASK;
+		img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		img_prl_out_reset(prl);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_prl_out_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai);
+	unsigned int rate, channels;
+	u32 reg, control_set = 0;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	format = params_format(params);
+	channels = params_channels(params);
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S32_LE:
+		control_set |= IMG_PRL_OUT_CTL_PACKH_MASK;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (channels != 2)
+		return -EINVAL;
+
+	clk_set_rate(prl->clk_ref, rate * 256);
+
+	reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL);
+	reg = (reg & ~IMG_PRL_OUT_CTL_PACKH_MASK) | control_set;
+	img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL);
+
+	return 0;
+}
+
+static int img_prl_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai);
+	u32 reg, control_set = 0;
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		control_set |= IMG_PRL_OUT_CTL_EDGE_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL);
+	reg = (reg & ~IMG_PRL_OUT_CTL_EDGE_MASK) | control_set;
+	img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops img_prl_out_dai_ops = {
+	.trigger = img_prl_out_trigger,
+	.hw_params = img_prl_out_hw_params,
+	.set_fmt = img_prl_out_set_fmt
+};
+
+static int img_prl_out_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &prl->dma_data, NULL);
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver img_prl_out_dai = {
+	.probe = img_prl_out_dai_probe,
+	.playback = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_192000,
+		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE
+	},
+	.ops = &img_prl_out_dai_ops
+};
+
+static const struct snd_soc_component_driver img_prl_out_component = {
+	.name = "img-prl-out"
+};
+
+static int img_prl_out_probe(struct platform_device *pdev)
+{
+	struct img_prl_out *prl;
+	struct resource *res;
+	void __iomem *base;
+	int ret;
+	struct device *dev = &pdev->dev;
+
+	prl = devm_kzalloc(&pdev->dev, sizeof(*prl), GFP_KERNEL);
+	if (!prl)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, prl);
+
+	prl->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	prl->base = base;
+
+	prl->rst = devm_reset_control_get(&pdev->dev, "rst");
+	if (IS_ERR(prl->rst)) {
+		if (PTR_ERR(prl->rst) != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "No top level reset found\n");
+		return PTR_ERR(prl->rst);
+	}
+
+	prl->clk_sys = devm_clk_get(&pdev->dev, "sys");
+	if (IS_ERR(prl->clk_sys)) {
+		if (PTR_ERR(prl->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(prl->clk_sys);
+	}
+
+	prl->clk_ref = devm_clk_get(&pdev->dev, "ref");
+	if (IS_ERR(prl->clk_ref)) {
+		if (PTR_ERR(prl->clk_ref) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'ref'\n");
+		return PTR_ERR(prl->clk_ref);
+	}
+
+	ret = clk_prepare_enable(prl->clk_sys);
+	if (ret)
+		return ret;
+
+	img_prl_out_writel(prl, IMG_PRL_OUT_CTL_EDGE_MASK, IMG_PRL_OUT_CTL);
+	img_prl_out_reset(prl);
+
+	pm_runtime_enable(&pdev->dev);
+	if (!pm_runtime_enabled(&pdev->dev)) {
+		ret = img_prl_out_resume(&pdev->dev);
+		if (ret)
+			goto err_pm_disable;
+	}
+
+	prl->dma_data.addr = res->start + IMG_PRL_OUT_TX_FIFO;
+	prl->dma_data.addr_width = 4;
+	prl->dma_data.maxburst = 4;
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&img_prl_out_component,
+			&img_prl_out_dai, 1);
+	if (ret)
+		goto err_suspend;
+
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (ret)
+		goto err_suspend;
+
+	return 0;
+
+err_suspend:
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_prl_out_suspend(&pdev->dev);
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	clk_disable_unprepare(prl->clk_sys);
+
+	return ret;
+}
+
+static int img_prl_out_dev_remove(struct platform_device *pdev)
+{
+	struct img_prl_out *prl = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_prl_out_suspend(&pdev->dev);
+
+	clk_disable_unprepare(prl->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_prl_out_of_match[] = {
+	{ .compatible = "img,parallel-out" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_prl_out_of_match);
+
+static const struct dev_pm_ops img_prl_out_pm_ops = {
+	SET_RUNTIME_PM_OPS(img_prl_out_suspend,
+			   img_prl_out_resume, NULL)
+};
+
+static struct platform_driver img_prl_out_driver = {
+	.driver = {
+		.name = "img-parallel-out",
+		.of_match_table = img_prl_out_of_match,
+		.pm = &img_prl_out_pm_ops
+	},
+	.probe = img_prl_out_probe,
+	.remove = img_prl_out_dev_remove
+};
+module_platform_driver(img_prl_out_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG Parallel Output Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/img/img-spdif-in.c b/sound/soc/img/img-spdif-in.c
new file mode 100644
index 000000000000..4d9953d318af
--- /dev/null
+++ b/sound/soc/img/img-spdif-in.c
@@ -0,0 +1,806 @@
+/*
+ * IMG SPDIF input controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_SPDIF_IN_RX_FIFO_OFFSET		0
+
+#define IMG_SPDIF_IN_CTL			0x4
+#define IMG_SPDIF_IN_CTL_LOCKLO_MASK		0xff
+#define IMG_SPDIF_IN_CTL_LOCKLO_SHIFT		0
+#define IMG_SPDIF_IN_CTL_LOCKHI_MASK		0xff00
+#define IMG_SPDIF_IN_CTL_LOCKHI_SHIFT		8
+#define IMG_SPDIF_IN_CTL_TRK_MASK		0xff0000
+#define IMG_SPDIF_IN_CTL_TRK_SHIFT		16
+#define IMG_SPDIF_IN_CTL_SRD_MASK		0x70000000
+#define IMG_SPDIF_IN_CTL_SRD_SHIFT		28
+#define IMG_SPDIF_IN_CTL_SRT_MASK		BIT(31)
+
+#define IMG_SPDIF_IN_STATUS			0x8
+#define IMG_SPDIF_IN_STATUS_SAM_MASK		0x7000
+#define IMG_SPDIF_IN_STATUS_SAM_SHIFT		12
+#define IMG_SPDIF_IN_STATUS_LOCK_MASK		BIT(15)
+#define IMG_SPDIF_IN_STATUS_LOCK_SHIFT		15
+
+#define IMG_SPDIF_IN_CLKGEN			0x1c
+#define IMG_SPDIF_IN_CLKGEN_NOM_MASK		0x3ff
+#define IMG_SPDIF_IN_CLKGEN_NOM_SHIFT		0
+#define IMG_SPDIF_IN_CLKGEN_HLD_MASK		0x3ff0000
+#define IMG_SPDIF_IN_CLKGEN_HLD_SHIFT		16
+
+#define IMG_SPDIF_IN_CSL			0x20
+
+#define IMG_SPDIF_IN_CSH			0x24
+#define IMG_SPDIF_IN_CSH_MASK			0xff
+#define IMG_SPDIF_IN_CSH_SHIFT			0
+
+#define IMG_SPDIF_IN_SOFT_RESET			0x28
+#define IMG_SPDIF_IN_SOFT_RESET_MASK		BIT(0)
+
+#define IMG_SPDIF_IN_ACLKGEN_START		0x2c
+#define IMG_SPDIF_IN_ACLKGEN_NOM_MASK		0x3ff
+#define IMG_SPDIF_IN_ACLKGEN_NOM_SHIFT		0
+#define IMG_SPDIF_IN_ACLKGEN_HLD_MASK		0xffc00
+#define IMG_SPDIF_IN_ACLKGEN_HLD_SHIFT		10
+#define IMG_SPDIF_IN_ACLKGEN_TRK_MASK		0xff00000
+#define IMG_SPDIF_IN_ACLKGEN_TRK_SHIFT		20
+
+#define IMG_SPDIF_IN_NUM_ACLKGEN		4
+
+struct img_spdif_in {
+	spinlock_t lock;
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	unsigned int trk;
+	bool multi_freq;
+	int lock_acquire;
+	int lock_release;
+	unsigned int single_freq;
+	unsigned int multi_freqs[IMG_SPDIF_IN_NUM_ACLKGEN];
+	bool active;
+
+	/* Write-only registers */
+	unsigned int aclkgen_regs[IMG_SPDIF_IN_NUM_ACLKGEN];
+};
+
+static inline void img_spdif_in_writel(struct img_spdif_in *spdif,
+					u32 val, u32 reg)
+{
+	writel(val, spdif->base + reg);
+}
+
+static inline u32 img_spdif_in_readl(struct img_spdif_in *spdif, u32 reg)
+{
+	return readl(spdif->base + reg);
+}
+
+static inline void img_spdif_in_aclkgen_writel(struct img_spdif_in *spdif,
+						u32 index)
+{
+	img_spdif_in_writel(spdif, spdif->aclkgen_regs[index],
+			IMG_SPDIF_IN_ACLKGEN_START + (index * 0x4));
+}
+
+static int img_spdif_in_check_max_rate(struct img_spdif_in *spdif,
+		unsigned int sample_rate, unsigned long *actual_freq)
+{
+	unsigned long min_freq, freq_t;
+
+	/* Clock rate must be at least 24x the bit rate */
+	min_freq = sample_rate * 2 * 32 * 24;
+
+	freq_t = clk_get_rate(spdif->clk_sys);
+
+	if (freq_t < min_freq)
+		return -EINVAL;
+
+	*actual_freq = freq_t;
+
+	return 0;
+}
+
+static int img_spdif_in_do_clkgen_calc(unsigned int rate, unsigned int *pnom,
+		unsigned int *phld, unsigned long clk_rate)
+{
+	unsigned int ori, nom, hld;
+
+	/*
+	 * Calculate oversampling ratio, nominal phase increment and hold
+	 * increment for the given rate / frequency
+	 */
+
+	if (!rate)
+		return -EINVAL;
+
+	ori = clk_rate / (rate * 64);
+
+	if (!ori)
+		return -EINVAL;
+
+	nom = (4096 / ori) + 1;
+	do
+		hld = 4096 - (--nom * (ori - 1));
+	while (hld < 120);
+
+	*pnom = nom;
+	*phld = hld;
+
+	return 0;
+}
+
+static int img_spdif_in_do_clkgen_single(struct img_spdif_in *spdif,
+		unsigned int rate)
+{
+	unsigned int nom, hld;
+	unsigned long flags, clk_rate;
+	int ret = 0;
+	u32 reg;
+
+	ret = img_spdif_in_check_max_rate(spdif, rate, &clk_rate);
+	if (ret)
+		return ret;
+
+	ret = img_spdif_in_do_clkgen_calc(rate, &nom, &hld, clk_rate);
+	if (ret)
+		return ret;
+
+	reg = (nom << IMG_SPDIF_IN_CLKGEN_NOM_SHIFT) &
+		IMG_SPDIF_IN_CLKGEN_NOM_MASK;
+	reg |= (hld << IMG_SPDIF_IN_CLKGEN_HLD_SHIFT) &
+		IMG_SPDIF_IN_CLKGEN_HLD_MASK;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CLKGEN);
+
+	spdif->single_freq = rate;
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_do_clkgen_multi(struct img_spdif_in *spdif,
+		unsigned int multi_freqs[])
+{
+	unsigned int nom, hld, rate, max_rate = 0;
+	unsigned long flags, clk_rate;
+	int i, ret = 0;
+	u32 reg, trk_reg, temp_regs[IMG_SPDIF_IN_NUM_ACLKGEN];
+
+	for (i = 0; i < IMG_SPDIF_IN_NUM_ACLKGEN; i++)
+		if (multi_freqs[i] > max_rate)
+			max_rate = multi_freqs[i];
+
+	ret = img_spdif_in_check_max_rate(spdif, max_rate, &clk_rate);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < IMG_SPDIF_IN_NUM_ACLKGEN; i++) {
+		rate = multi_freqs[i];
+
+		ret = img_spdif_in_do_clkgen_calc(rate, &nom, &hld, clk_rate);
+		if (ret)
+			return ret;
+
+		reg = (nom << IMG_SPDIF_IN_ACLKGEN_NOM_SHIFT) &
+			IMG_SPDIF_IN_ACLKGEN_NOM_MASK;
+		reg |= (hld << IMG_SPDIF_IN_ACLKGEN_HLD_SHIFT) &
+			IMG_SPDIF_IN_ACLKGEN_HLD_MASK;
+		temp_regs[i] = reg;
+	}
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	trk_reg = spdif->trk << IMG_SPDIF_IN_ACLKGEN_TRK_SHIFT;
+
+	for (i = 0; i < IMG_SPDIF_IN_NUM_ACLKGEN; i++) {
+		spdif->aclkgen_regs[i] = temp_regs[i] | trk_reg;
+		img_spdif_in_aclkgen_writel(spdif, i);
+	}
+
+	spdif->multi_freq = true;
+	spdif->multi_freqs[0] = multi_freqs[0];
+	spdif->multi_freqs[1] = multi_freqs[1];
+	spdif->multi_freqs[2] = multi_freqs[2];
+	spdif->multi_freqs[3] = multi_freqs[3];
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_iec958_info(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+
+	return 0;
+}
+
+static int img_spdif_in_get_status_mask(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.iec958.status[0] = 0xff;
+	ucontrol->value.iec958.status[1] = 0xff;
+	ucontrol->value.iec958.status[2] = 0xff;
+	ucontrol->value.iec958.status[3] = 0xff;
+	ucontrol->value.iec958.status[4] = 0xff;
+
+	return 0;
+}
+
+static int img_spdif_in_get_status(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	u32 reg;
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CSL);
+	ucontrol->value.iec958.status[0] = reg & 0xff;
+	ucontrol->value.iec958.status[1] = (reg >> 8) & 0xff;
+	ucontrol->value.iec958.status[2] = (reg >> 16) & 0xff;
+	ucontrol->value.iec958.status[3] = (reg >> 24) & 0xff;
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CSH);
+	ucontrol->value.iec958.status[4] = (reg & IMG_SPDIF_IN_CSH_MASK)
+		>> IMG_SPDIF_IN_CSH_SHIFT;
+
+	return 0;
+}
+
+static int img_spdif_in_info_multi_freq(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = IMG_SPDIF_IN_NUM_ACLKGEN;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = LONG_MAX;
+
+	return 0;
+}
+
+static int img_spdif_in_get_multi_freq(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned long flags;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+	if (spdif->multi_freq) {
+		ucontrol->value.integer.value[0] = spdif->multi_freqs[0];
+		ucontrol->value.integer.value[1] = spdif->multi_freqs[1];
+		ucontrol->value.integer.value[2] = spdif->multi_freqs[2];
+		ucontrol->value.integer.value[3] = spdif->multi_freqs[3];
+	} else {
+		ucontrol->value.integer.value[0] = 0;
+		ucontrol->value.integer.value[1] = 0;
+		ucontrol->value.integer.value[2] = 0;
+		ucontrol->value.integer.value[3] = 0;
+	}
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_set_multi_freq(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned int multi_freqs[IMG_SPDIF_IN_NUM_ACLKGEN];
+	bool multi_freq;
+	unsigned long flags;
+
+	if ((ucontrol->value.integer.value[0] == 0) &&
+			(ucontrol->value.integer.value[1] == 0) &&
+			(ucontrol->value.integer.value[2] == 0) &&
+			(ucontrol->value.integer.value[3] == 0)) {
+		multi_freq = false;
+	} else {
+		multi_freqs[0] = ucontrol->value.integer.value[0];
+		multi_freqs[1] = ucontrol->value.integer.value[1];
+		multi_freqs[2] = ucontrol->value.integer.value[2];
+		multi_freqs[3] = ucontrol->value.integer.value[3];
+		multi_freq = true;
+	}
+
+	if (multi_freq)
+		return img_spdif_in_do_clkgen_multi(spdif, multi_freqs);
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	spdif->multi_freq = false;
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_info_lock_freq(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = LONG_MAX;
+
+	return 0;
+}
+
+static int img_spdif_in_get_lock_freq(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *uc)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	u32 reg;
+	int i;
+	unsigned long flags;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_STATUS);
+	if (reg & IMG_SPDIF_IN_STATUS_LOCK_MASK) {
+		if (spdif->multi_freq) {
+			i = ((reg & IMG_SPDIF_IN_STATUS_SAM_MASK) >>
+					IMG_SPDIF_IN_STATUS_SAM_SHIFT) - 1;
+			uc->value.integer.value[0] = spdif->multi_freqs[i];
+		} else {
+			uc->value.integer.value[0] = spdif->single_freq;
+		}
+	} else {
+		uc->value.integer.value[0] = 0;
+	}
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_info_trk(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 255;
+
+	return 0;
+}
+
+static int img_spdif_in_get_trk(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+
+	ucontrol->value.integer.value[0] = spdif->trk;
+
+	return 0;
+}
+
+static int img_spdif_in_set_trk(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned long flags;
+	int i;
+	u32 reg;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	spdif->trk = ucontrol->value.integer.value[0];
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+	reg &= ~IMG_SPDIF_IN_CTL_TRK_MASK;
+	reg |= spdif->trk << IMG_SPDIF_IN_CTL_TRK_SHIFT;
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+
+	for (i = 0; i < IMG_SPDIF_IN_NUM_ACLKGEN; i++) {
+		spdif->aclkgen_regs[i] = (spdif->aclkgen_regs[i] &
+			~IMG_SPDIF_IN_ACLKGEN_TRK_MASK) |
+			(spdif->trk << IMG_SPDIF_IN_ACLKGEN_TRK_SHIFT);
+
+		img_spdif_in_aclkgen_writel(spdif, i);
+	}
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_info_lock(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = -128;
+	uinfo->value.integer.max = 127;
+
+	return 0;
+}
+
+static int img_spdif_in_get_lock_acquire(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+
+	ucontrol->value.integer.value[0] = spdif->lock_acquire;
+
+	return 0;
+}
+
+static int img_spdif_in_set_lock_acquire(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	spdif->lock_acquire = ucontrol->value.integer.value[0];
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+	reg &= ~IMG_SPDIF_IN_CTL_LOCKHI_MASK;
+	reg |= (spdif->lock_acquire << IMG_SPDIF_IN_CTL_LOCKHI_SHIFT) &
+		IMG_SPDIF_IN_CTL_LOCKHI_MASK;
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_get_lock_release(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+
+	ucontrol->value.integer.value[0] = spdif->lock_release;
+
+	return 0;
+}
+
+static int img_spdif_in_set_lock_release(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	spdif->lock_release = ucontrol->value.integer.value[0];
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+	reg &= ~IMG_SPDIF_IN_CTL_LOCKLO_MASK;
+	reg |= (spdif->lock_release << IMG_SPDIF_IN_CTL_LOCKLO_SHIFT) &
+		IMG_SPDIF_IN_CTL_LOCKLO_MASK;
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static struct snd_kcontrol_new img_spdif_in_controls[] = {
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK),
+		.info = img_spdif_in_iec958_info,
+		.get = img_spdif_in_get_status_mask
+	},
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
+		.info = img_spdif_in_iec958_info,
+		.get = img_spdif_in_get_status
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Multi Frequency Acquire",
+		.info = img_spdif_in_info_multi_freq,
+		.get = img_spdif_in_get_multi_freq,
+		.put = img_spdif_in_set_multi_freq
+	},
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Lock Frequency",
+		.info = img_spdif_in_info_lock_freq,
+		.get = img_spdif_in_get_lock_freq
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Lock TRK",
+		.info = img_spdif_in_info_trk,
+		.get = img_spdif_in_get_trk,
+		.put = img_spdif_in_set_trk
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Lock Acquire Threshold",
+		.info = img_spdif_in_info_lock,
+		.get = img_spdif_in_get_lock_acquire,
+		.put = img_spdif_in_set_lock_acquire
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Lock Release Threshold",
+		.info = img_spdif_in_info_lock,
+		.get = img_spdif_in_get_lock_release,
+		.put = img_spdif_in_set_lock_release
+	}
+};
+
+static int img_spdif_in_trigger(struct snd_pcm_substream *substream, int cmd,
+	struct snd_soc_dai *dai)
+{
+	unsigned long flags;
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(dai);
+	int ret = 0;
+	u32 reg;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+		if (spdif->multi_freq)
+			reg &= ~IMG_SPDIF_IN_CTL_SRD_MASK;
+		else
+			reg |= (1UL << IMG_SPDIF_IN_CTL_SRD_SHIFT);
+		reg |= IMG_SPDIF_IN_CTL_SRT_MASK;
+		img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+		spdif->active = true;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+		reg &= ~IMG_SPDIF_IN_CTL_SRT_MASK;
+		img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+		spdif->active = false;
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return ret;
+}
+
+static int img_spdif_in_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(dai);
+	unsigned int rate, channels;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	channels = params_channels(params);
+	format = params_format(params);
+
+	if (format != SNDRV_PCM_FORMAT_S32_LE)
+		return -EINVAL;
+
+	if (channels != 2)
+		return -EINVAL;
+
+	return img_spdif_in_do_clkgen_single(spdif, rate);
+}
+
+static const struct snd_soc_dai_ops img_spdif_in_dai_ops = {
+	.trigger = img_spdif_in_trigger,
+	.hw_params = img_spdif_in_hw_params
+};
+
+static int img_spdif_in_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, NULL, &spdif->dma_data);
+
+	snd_soc_add_dai_controls(dai, img_spdif_in_controls,
+			ARRAY_SIZE(img_spdif_in_controls));
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver img_spdif_in_dai = {
+	.probe = img_spdif_in_dai_probe,
+	.capture = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_192000,
+		.formats = SNDRV_PCM_FMTBIT_S32_LE
+	},
+	.ops = &img_spdif_in_dai_ops
+};
+
+static const struct snd_soc_component_driver img_spdif_in_component = {
+	.name = "img-spdif-in"
+};
+
+static int img_spdif_in_probe(struct platform_device *pdev)
+{
+	struct img_spdif_in *spdif;
+	struct resource *res;
+	void __iomem *base;
+	int ret;
+	struct reset_control *rst;
+	u32 reg;
+	struct device *dev = &pdev->dev;
+
+	spdif = devm_kzalloc(&pdev->dev, sizeof(*spdif), GFP_KERNEL);
+	if (!spdif)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, spdif);
+
+	spdif->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	spdif->base = base;
+
+	spdif->clk_sys = devm_clk_get(dev, "sys");
+	if (IS_ERR(spdif->clk_sys)) {
+		if (PTR_ERR(spdif->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(spdif->clk_sys);
+	}
+
+	ret = clk_prepare_enable(spdif->clk_sys);
+	if (ret)
+		return ret;
+
+	rst = devm_reset_control_get(&pdev->dev, "rst");
+	if (IS_ERR(rst)) {
+		if (PTR_ERR(rst) == -EPROBE_DEFER) {
+			ret = -EPROBE_DEFER;
+			goto err_clk_disable;
+		}
+		dev_dbg(dev, "No top level reset found\n");
+		img_spdif_in_writel(spdif, IMG_SPDIF_IN_SOFT_RESET_MASK,
+				IMG_SPDIF_IN_SOFT_RESET);
+		img_spdif_in_writel(spdif, 0, IMG_SPDIF_IN_SOFT_RESET);
+	} else {
+		reset_control_assert(rst);
+		reset_control_deassert(rst);
+	}
+
+	spin_lock_init(&spdif->lock);
+
+	spdif->dma_data.addr = res->start + IMG_SPDIF_IN_RX_FIFO_OFFSET;
+	spdif->dma_data.addr_width = 4;
+	spdif->dma_data.maxburst = 4;
+	spdif->trk = 0x80;
+	spdif->lock_acquire = 4;
+	spdif->lock_release = -128;
+
+	reg = (spdif->lock_acquire << IMG_SPDIF_IN_CTL_LOCKHI_SHIFT) &
+		IMG_SPDIF_IN_CTL_LOCKHI_MASK;
+	reg |= (spdif->lock_release << IMG_SPDIF_IN_CTL_LOCKLO_SHIFT) &
+		IMG_SPDIF_IN_CTL_LOCKLO_MASK;
+	reg |= (spdif->trk << IMG_SPDIF_IN_CTL_TRK_SHIFT) &
+		IMG_SPDIF_IN_CTL_TRK_MASK;
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&img_spdif_in_component, &img_spdif_in_dai, 1);
+	if (ret)
+		goto err_clk_disable;
+
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (ret)
+		goto err_clk_disable;
+
+	return 0;
+
+err_clk_disable:
+	clk_disable_unprepare(spdif->clk_sys);
+
+	return ret;
+}
+
+static int img_spdif_in_dev_remove(struct platform_device *pdev)
+{
+	struct img_spdif_in *spdif = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(spdif->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_spdif_in_of_match[] = {
+	{ .compatible = "img,spdif-in" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_spdif_in_of_match);
+
+static struct platform_driver img_spdif_in_driver = {
+	.driver = {
+		.name = "img-spdif-in",
+		.of_match_table = img_spdif_in_of_match
+	},
+	.probe = img_spdif_in_probe,
+	.remove = img_spdif_in_dev_remove
+};
+module_platform_driver(img_spdif_in_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG SPDIF Input driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/img/img-spdif-out.c b/sound/soc/img/img-spdif-out.c
new file mode 100644
index 000000000000..08f93a5dadfe
--- /dev/null
+++ b/sound/soc/img/img-spdif-out.c
@@ -0,0 +1,441 @@
+/*
+ * IMG SPDIF output controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_SPDIF_OUT_TX_FIFO		0x0
+
+#define IMG_SPDIF_OUT_CTL		0x4
+#define IMG_SPDIF_OUT_CTL_FS_MASK	BIT(4)
+#define IMG_SPDIF_OUT_CTL_CLK_MASK	BIT(2)
+#define IMG_SPDIF_OUT_CTL_SRT_MASK	BIT(0)
+
+#define IMG_SPDIF_OUT_CSL		0x14
+
+#define IMG_SPDIF_OUT_CSH_UV		0x18
+#define IMG_SPDIF_OUT_CSH_UV_CSH_SHIFT	0
+#define IMG_SPDIF_OUT_CSH_UV_CSH_MASK	0xff
+
+struct img_spdif_out {
+	spinlock_t lock;
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct clk *clk_ref;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	struct reset_control *rst;
+};
+
+static int img_spdif_out_suspend(struct device *dev)
+{
+	struct img_spdif_out *spdif = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(spdif->clk_ref);
+
+	return 0;
+}
+
+static int img_spdif_out_resume(struct device *dev)
+{
+	struct img_spdif_out *spdif = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(spdif->clk_ref);
+	if (ret) {
+		dev_err(dev, "clk_enable failed: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static inline void img_spdif_out_writel(struct img_spdif_out *spdif, u32 val,
+				u32 reg)
+{
+	writel(val, spdif->base + reg);
+}
+
+static inline u32 img_spdif_out_readl(struct img_spdif_out *spdif, u32 reg)
+{
+	return readl(spdif->base + reg);
+}
+
+static void img_spdif_out_reset(struct img_spdif_out *spdif)
+{
+	u32 ctl, status_low, status_high;
+
+	ctl = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL) &
+			~IMG_SPDIF_OUT_CTL_SRT_MASK;
+	status_low = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSL);
+	status_high = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);
+
+	reset_control_assert(spdif->rst);
+	reset_control_deassert(spdif->rst);
+
+	img_spdif_out_writel(spdif, ctl, IMG_SPDIF_OUT_CTL);
+	img_spdif_out_writel(spdif, status_low, IMG_SPDIF_OUT_CSL);
+	img_spdif_out_writel(spdif, status_high, IMG_SPDIF_OUT_CSH_UV);
+}
+
+static int img_spdif_out_info(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+
+	return 0;
+}
+
+static int img_spdif_out_get_status_mask(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.iec958.status[0] = 0xff;
+	ucontrol->value.iec958.status[1] = 0xff;
+	ucontrol->value.iec958.status[2] = 0xff;
+	ucontrol->value.iec958.status[3] = 0xff;
+	ucontrol->value.iec958.status[4] = 0xff;
+
+	return 0;
+}
+
+static int img_spdif_out_get_status(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	u32 reg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSL);
+	ucontrol->value.iec958.status[0] = reg & 0xff;
+	ucontrol->value.iec958.status[1] = (reg >> 8) & 0xff;
+	ucontrol->value.iec958.status[2] = (reg >> 16) & 0xff;
+	ucontrol->value.iec958.status[3] = (reg >> 24) & 0xff;
+
+	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);
+	ucontrol->value.iec958.status[4] =
+		(reg & IMG_SPDIF_OUT_CSH_UV_CSH_MASK) >>
+		IMG_SPDIF_OUT_CSH_UV_CSH_SHIFT;
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_out_set_status(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	u32 reg;
+	unsigned long flags;
+
+	reg = ((u32)ucontrol->value.iec958.status[3] << 24);
+	reg |= ((u32)ucontrol->value.iec958.status[2] << 16);
+	reg |= ((u32)ucontrol->value.iec958.status[1] << 8);
+	reg |= (u32)ucontrol->value.iec958.status[0];
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CSL);
+
+	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);
+	reg &= ~IMG_SPDIF_OUT_CSH_UV_CSH_MASK;
+	reg |= (u32)ucontrol->value.iec958.status[4] <<
+			IMG_SPDIF_OUT_CSH_UV_CSH_SHIFT;
+	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CSH_UV);
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static struct snd_kcontrol_new img_spdif_out_controls[] = {
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
+		.info = img_spdif_out_info,
+		.get = img_spdif_out_get_status_mask
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+		.info = img_spdif_out_info,
+		.get = img_spdif_out_get_status,
+		.put = img_spdif_out_set_status
+	}
+};
+
+static int img_spdif_out_trigger(struct snd_pcm_substream *substream, int cmd,
+			struct snd_soc_dai *dai)
+{
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);
+	u32 reg;
+	unsigned long flags;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL);
+		reg |= IMG_SPDIF_OUT_CTL_SRT_MASK;
+		img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CTL);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		spin_lock_irqsave(&spdif->lock, flags);
+		img_spdif_out_reset(spdif);
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_spdif_out_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);
+	unsigned int channels;
+	long pre_div_a, pre_div_b, diff_a, diff_b, rate, clk_rate;
+	u32 reg;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	format = params_format(params);
+	channels = params_channels(params);
+
+	dev_dbg(spdif->dev, "hw_params rate %ld channels %u format %u\n",
+			rate, channels, format);
+
+	if (format != SNDRV_PCM_FORMAT_S32_LE)
+		return -EINVAL;
+
+	if (channels != 2)
+		return -EINVAL;
+
+	pre_div_a = clk_round_rate(spdif->clk_ref, rate * 256);
+	if (pre_div_a < 0)
+		return pre_div_a;
+	pre_div_b = clk_round_rate(spdif->clk_ref, rate * 384);
+	if (pre_div_b < 0)
+		return pre_div_b;
+
+	diff_a = abs((pre_div_a / 256) - rate);
+	diff_b = abs((pre_div_b / 384) - rate);
+
+	/* If diffs are equal, use lower clock rate */
+	if (diff_a > diff_b)
+		clk_set_rate(spdif->clk_ref, pre_div_b);
+	else
+		clk_set_rate(spdif->clk_ref, pre_div_a);
+
+	/*
+	 * Another driver (eg machine driver) may have rejected the above
+	 * change. Get the current rate and set the register bit according to
+	 * the new min diff
+	 */
+	clk_rate = clk_get_rate(spdif->clk_ref);
+
+	diff_a = abs((clk_rate / 256) - rate);
+	diff_b = abs((clk_rate / 384) - rate);
+
+	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL);
+	if (diff_a <= diff_b)
+		reg &= ~IMG_SPDIF_OUT_CTL_CLK_MASK;
+	else
+		reg |= IMG_SPDIF_OUT_CTL_CLK_MASK;
+	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CTL);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops img_spdif_out_dai_ops = {
+	.trigger = img_spdif_out_trigger,
+	.hw_params = img_spdif_out_hw_params
+};
+
+static int img_spdif_out_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &spdif->dma_data, NULL);
+
+	snd_soc_add_dai_controls(dai, img_spdif_out_controls,
+			ARRAY_SIZE(img_spdif_out_controls));
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver img_spdif_out_dai = {
+	.probe = img_spdif_out_dai_probe,
+	.playback = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_192000,
+		.formats = SNDRV_PCM_FMTBIT_S32_LE
+	},
+	.ops = &img_spdif_out_dai_ops
+};
+
+static const struct snd_soc_component_driver img_spdif_out_component = {
+	.name = "img-spdif-out"
+};
+
+static int img_spdif_out_probe(struct platform_device *pdev)
+{
+	struct img_spdif_out *spdif;
+	struct resource *res;
+	void __iomem *base;
+	int ret;
+	struct device *dev = &pdev->dev;
+
+	spdif = devm_kzalloc(&pdev->dev, sizeof(*spdif), GFP_KERNEL);
+	if (!spdif)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, spdif);
+
+	spdif->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	spdif->base = base;
+
+	spdif->rst = devm_reset_control_get(&pdev->dev, "rst");
+	if (IS_ERR(spdif->rst)) {
+		if (PTR_ERR(spdif->rst) != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "No top level reset found\n");
+		return PTR_ERR(spdif->rst);
+	}
+
+	spdif->clk_sys = devm_clk_get(&pdev->dev, "sys");
+	if (IS_ERR(spdif->clk_sys)) {
+		if (PTR_ERR(spdif->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(spdif->clk_sys);
+	}
+
+	spdif->clk_ref = devm_clk_get(&pdev->dev, "ref");
+	if (IS_ERR(spdif->clk_ref)) {
+		if (PTR_ERR(spdif->clk_ref) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'ref'\n");
+		return PTR_ERR(spdif->clk_ref);
+	}
+
+	ret = clk_prepare_enable(spdif->clk_sys);
+	if (ret)
+		return ret;
+
+	img_spdif_out_writel(spdif, IMG_SPDIF_OUT_CTL_FS_MASK,
+				IMG_SPDIF_OUT_CTL);
+
+	img_spdif_out_reset(spdif);
+
+	pm_runtime_enable(&pdev->dev);
+	if (!pm_runtime_enabled(&pdev->dev)) {
+		ret = img_spdif_out_resume(&pdev->dev);
+		if (ret)
+			goto err_pm_disable;
+	}
+
+	spin_lock_init(&spdif->lock);
+
+	spdif->dma_data.addr = res->start + IMG_SPDIF_OUT_TX_FIFO;
+	spdif->dma_data.addr_width = 4;
+	spdif->dma_data.maxburst = 4;
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&img_spdif_out_component,
+			&img_spdif_out_dai, 1);
+	if (ret)
+		goto err_suspend;
+
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (ret)
+		goto err_suspend;
+
+	dev_dbg(&pdev->dev, "Probe successful\n");
+
+	return 0;
+
+err_suspend:
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_spdif_out_suspend(&pdev->dev);
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	clk_disable_unprepare(spdif->clk_sys);
+
+	return ret;
+}
+
+static int img_spdif_out_dev_remove(struct platform_device *pdev)
+{
+	struct img_spdif_out *spdif = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_spdif_out_suspend(&pdev->dev);
+
+	clk_disable_unprepare(spdif->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_spdif_out_of_match[] = {
+	{ .compatible = "img,spdif-out" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_spdif_out_of_match);
+
+static const struct dev_pm_ops img_spdif_out_pm_ops = {
+	SET_RUNTIME_PM_OPS(img_spdif_out_suspend,
+			   img_spdif_out_resume, NULL)
+};
+
+static struct platform_driver img_spdif_out_driver = {
+	.driver = {
+		.name = "img-spdif-out",
+		.of_match_table = img_spdif_out_of_match,
+		.pm = &img_spdif_out_pm_ops
+	},
+	.probe = img_spdif_out_probe,
+	.remove = img_spdif_out_dev_remove
+};
+module_platform_driver(img_spdif_out_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG SPDIF Output driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/img/pistachio-internal-dac.c b/sound/soc/img/pistachio-internal-dac.c
new file mode 100644
index 000000000000..162a0fd68c7b
--- /dev/null
+++ b/sound/soc/img/pistachio-internal-dac.c
@@ -0,0 +1,287 @@
+/*
+ * Pistachio internal dac driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define PISTACHIO_INTERNAL_DAC_CTRL			0x40
+#define PISTACHIO_INTERNAL_DAC_CTRL_PWR_SEL_MASK	0x2
+#define PISTACHIO_INTERNAL_DAC_CTRL_PWRDN_MASK		0x1
+
+#define PISTACHIO_INTERNAL_DAC_SRST			0x44
+#define PISTACHIO_INTERNAL_DAC_SRST_MASK		0x1
+
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL			0x48
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_ADDR_SHIFT	0
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_ADDR_MASK	0xFFF
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_WE_MASK		0x1000
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_WDATA_SHIFT	13
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_WDATA_MASK	0x1FE000
+
+#define PISTACHIO_INTERNAL_DAC_PWR			0x1
+#define PISTACHIO_INTERNAL_DAC_PWR_MASK			0x1
+
+#define PISTACHIO_INTERNAL_DAC_FORMATS (SNDRV_PCM_FMTBIT_S24_LE |  \
+					SNDRV_PCM_FMTBIT_S32_LE)
+
+/* codec private data */
+struct pistachio_internal_dac {
+	struct regmap *regmap;
+	struct regulator *supply;
+	bool mute;
+};
+
+static const struct snd_kcontrol_new pistachio_internal_dac_snd_controls[] = {
+	SOC_SINGLE("Playback Switch", PISTACHIO_INTERNAL_DAC_CTRL, 2, 1, 1)
+};
+
+static const struct snd_soc_dapm_widget pistachio_internal_dac_widgets[] = {
+	SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_OUTPUT("AOUTL"),
+	SND_SOC_DAPM_OUTPUT("AOUTR"),
+};
+
+static const struct snd_soc_dapm_route pistachio_internal_dac_routes[] = {
+	{ "AOUTL", NULL, "DAC" },
+	{ "AOUTR", NULL, "DAC" },
+};
+
+static void pistachio_internal_dac_reg_writel(struct regmap *top_regs,
+						u32 val, u32 reg)
+{
+	regmap_update_bits(top_regs, PISTACHIO_INTERNAL_DAC_GTI_CTRL,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_ADDR_MASK,
+			reg << PISTACHIO_INTERNAL_DAC_GTI_CTRL_ADDR_SHIFT);
+
+	regmap_update_bits(top_regs, PISTACHIO_INTERNAL_DAC_GTI_CTRL,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_WDATA_MASK,
+			val << PISTACHIO_INTERNAL_DAC_GTI_CTRL_WDATA_SHIFT);
+
+	regmap_update_bits(top_regs, PISTACHIO_INTERNAL_DAC_GTI_CTRL,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_WE_MASK,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_WE_MASK);
+
+	regmap_update_bits(top_regs, PISTACHIO_INTERNAL_DAC_GTI_CTRL,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_WE_MASK, 0);
+}
+
+static void pistachio_internal_dac_pwr_off(struct pistachio_internal_dac *dac)
+{
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_CTRL,
+		PISTACHIO_INTERNAL_DAC_CTRL_PWRDN_MASK,
+		PISTACHIO_INTERNAL_DAC_CTRL_PWRDN_MASK);
+
+	pistachio_internal_dac_reg_writel(dac->regmap, 0,
+					PISTACHIO_INTERNAL_DAC_PWR);
+}
+
+static void pistachio_internal_dac_pwr_on(struct pistachio_internal_dac *dac)
+{
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_SRST,
+			PISTACHIO_INTERNAL_DAC_SRST_MASK,
+			PISTACHIO_INTERNAL_DAC_SRST_MASK);
+
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_SRST,
+			PISTACHIO_INTERNAL_DAC_SRST_MASK, 0);
+
+	pistachio_internal_dac_reg_writel(dac->regmap,
+					PISTACHIO_INTERNAL_DAC_PWR_MASK,
+					PISTACHIO_INTERNAL_DAC_PWR);
+
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_CTRL,
+			PISTACHIO_INTERNAL_DAC_CTRL_PWRDN_MASK, 0);
+}
+
+static struct snd_soc_dai_driver pistachio_internal_dac_dais[] = {
+	{
+		.name = "pistachio_internal_dac",
+		.playback = {
+			.stream_name = "Playback",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000_48000,
+			.formats = PISTACHIO_INTERNAL_DAC_FORMATS,
+		}
+	},
+};
+
+static int pistachio_internal_dac_codec_probe(struct snd_soc_codec *codec)
+{
+	struct pistachio_internal_dac *dac = snd_soc_codec_get_drvdata(codec);
+
+	snd_soc_codec_init_regmap(codec, dac->regmap);
+
+	return 0;
+}
+
+static const struct snd_soc_codec_driver pistachio_internal_dac_driver = {
+	.probe = pistachio_internal_dac_codec_probe,
+	.idle_bias_off = true,
+	.controls = pistachio_internal_dac_snd_controls,
+	.num_controls = ARRAY_SIZE(pistachio_internal_dac_snd_controls),
+	.dapm_widgets = pistachio_internal_dac_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(pistachio_internal_dac_widgets),
+	.dapm_routes = pistachio_internal_dac_routes,
+	.num_dapm_routes = ARRAY_SIZE(pistachio_internal_dac_routes),
+};
+
+static int pistachio_internal_dac_probe(struct platform_device *pdev)
+{
+	struct pistachio_internal_dac *dac;
+	int ret, voltage;
+	struct device *dev = &pdev->dev;
+	u32 reg;
+
+	dac = devm_kzalloc(dev, sizeof(*dac), GFP_KERNEL);
+
+	if (!dac)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, dac);
+
+	dac->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
+							    "img,cr-top");
+	if (IS_ERR(dac->regmap))
+		return PTR_ERR(dac->regmap);
+
+	dac->supply = devm_regulator_get(dev, "VDD");
+	if (IS_ERR(dac->supply)) {
+		ret = PTR_ERR(dac->supply);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "failed to acquire supply 'VDD-supply': %d\n", ret);
+		return ret;
+	}
+
+	ret = regulator_enable(dac->supply);
+	if (ret) {
+		dev_err(dev, "failed to enable supply: %d\n", ret);
+		return ret;
+	}
+
+	voltage = regulator_get_voltage(dac->supply);
+
+	switch (voltage) {
+	case 1800000:
+		reg = 0;
+		break;
+	case 3300000:
+		reg = PISTACHIO_INTERNAL_DAC_CTRL_PWR_SEL_MASK;
+		break;
+	default:
+		dev_err(dev, "invalid voltage: %d\n", voltage);
+		ret = -EINVAL;
+		goto err_regulator;
+	}
+
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_CTRL,
+			PISTACHIO_INTERNAL_DAC_CTRL_PWR_SEL_MASK, reg);
+
+	pistachio_internal_dac_pwr_off(dac);
+	pistachio_internal_dac_pwr_on(dac);
+
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+	pm_runtime_idle(dev);
+
+	ret = snd_soc_register_codec(dev, &pistachio_internal_dac_driver,
+			pistachio_internal_dac_dais,
+			ARRAY_SIZE(pistachio_internal_dac_dais));
+	if (ret) {
+		dev_err(dev, "failed to register codec: %d\n", ret);
+		goto err_pwr;
+	}
+
+	return 0;
+
+err_pwr:
+	pm_runtime_disable(&pdev->dev);
+	pistachio_internal_dac_pwr_off(dac);
+err_regulator:
+	regulator_disable(dac->supply);
+
+	return ret;
+}
+
+static int pistachio_internal_dac_remove(struct platform_device *pdev)
+{
+	struct pistachio_internal_dac *dac = dev_get_drvdata(&pdev->dev);
+
+	snd_soc_unregister_codec(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	pistachio_internal_dac_pwr_off(dac);
+	regulator_disable(dac->supply);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int pistachio_internal_dac_rt_resume(struct device *dev)
+{
+	struct pistachio_internal_dac *dac = dev_get_drvdata(dev);
+	int ret;
+
+	ret = regulator_enable(dac->supply);
+	if (ret) {
+		dev_err(dev, "failed to enable supply: %d\n", ret);
+		return ret;
+	}
+
+	pistachio_internal_dac_pwr_on(dac);
+
+	return 0;
+}
+
+static int pistachio_internal_dac_rt_suspend(struct device *dev)
+{
+	struct pistachio_internal_dac *dac = dev_get_drvdata(dev);
+
+	pistachio_internal_dac_pwr_off(dac);
+
+	regulator_disable(dac->supply);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops pistachio_internal_dac_pm_ops = {
+	SET_RUNTIME_PM_OPS(pistachio_internal_dac_rt_suspend,
+			pistachio_internal_dac_rt_resume, NULL)
+};
+
+static const struct of_device_id pistachio_internal_dac_of_match[] = {
+	{ .compatible = "img,pistachio-internal-dac" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, pistachio_internal_dac_of_match);
+
+static struct platform_driver pistachio_internal_dac_plat_driver = {
+	.driver = {
+		.name = "img-pistachio-internal-dac",
+		.of_match_table = pistachio_internal_dac_of_match,
+		.pm = &pistachio_internal_dac_pm_ops
+	},
+	.probe = pistachio_internal_dac_probe,
+	.remove = pistachio_internal_dac_remove
+};
+module_platform_driver(pistachio_internal_dac_plat_driver);
+
+MODULE_DESCRIPTION("Pistachio Internal DAC driver");
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_LICENSE("GPL v2");