path: root/common/recipes-kernel/linux/files/1568-Audio-code-as-per-4-1-0-kernel.patch

From 9392bd8bb11271b1501922ca17f1f944b32589c1 Mon Sep 17 00:00:00 2001
From: Sanjay R Mehta <sanju.mehta@amd.com>
Date: Mon, 25 Apr 2016 00:49:41 +0530
Subject: [PATCH 07/12] Audio code as per 4-1-0 kernel

---
 sound/soc/Kconfig           |   1 +
 sound/soc/Makefile          |   1 +
 sound/soc/amd/Kconfig       |  13 +
 sound/soc/amd/Makefile      |  11 +
 sound/soc/amd/acp-pcm-dma.c | 759 ++++++++++++++++++++++++++++++++++++++++++++
 sound/soc/amd/acp-rt286.c   | 264 +++++++++++++++
 sound/soc/codecs/rt286.c    |  24 +-
 7 files changed, 1068 insertions(+), 5 deletions(-)
 create mode 100644 sound/soc/amd/Kconfig
 create mode 100644 sound/soc/amd/Makefile
 create mode 100644 sound/soc/amd/acp-pcm-dma.c
 create mode 100644 sound/soc/amd/acp-rt286.c

diff --git a/sound/soc/Kconfig b/sound/soc/Kconfig
index 3ba52da..5932b7a 100644
--- a/sound/soc/Kconfig
+++ b/sound/soc/Kconfig
@@ -57,6 +57,7 @@ source "sound/soc/tegra/Kconfig"
 source "sound/soc/txx9/Kconfig"
 source "sound/soc/ux500/Kconfig"
 source "sound/soc/xtensa/Kconfig"
+source "sound/soc/amd/Kconfig"
 
 # Supported codecs
 source "sound/soc/codecs/Kconfig"
diff --git a/sound/soc/Makefile b/sound/soc/Makefile
index 974ba70..9708c055 100644
--- a/sound/soc/Makefile
+++ b/sound/soc/Makefile
@@ -38,3 +38,4 @@ obj-$(CONFIG_SND_SOC)	+= tegra/
 obj-$(CONFIG_SND_SOC)	+= txx9/
 obj-$(CONFIG_SND_SOC)	+= ux500/
 obj-$(CONFIG_SND_SOC)	+= xtensa/
+obj-$(CONFIG_SND_SOC)	+= amd/
diff --git a/sound/soc/amd/Kconfig b/sound/soc/amd/Kconfig
new file mode 100644
index 0000000..07677de
--- /dev/null
+++ b/sound/soc/amd/Kconfig
@@ -0,0 +1,13 @@
+ config SND_SOC_AMD_CZ_RT286_MACH
+        tristate "AMD ASoC Audio driver for Carrizo with rt286 codec"
+	select SND_SOC_RT286
+	select SND_SOC_AMD_ACP
+        depends on I2C_DESIGNWARE_PLATFORM
+        help
+           This option enables AMD I2S Audio support on Carrizo
+	   with ALC288 codec.
+ config SND_SOC_AMD_ACP
+        tristate "AMD Audio Coprocessor support"
+        depends on DRM_AMD_GNB_BUS
+        help
+          This option enables ACP support (DMA,I2S) on AMD platforms.
diff --git a/sound/soc/amd/Makefile b/sound/soc/amd/Makefile
new file mode 100644
index 0000000..63b6f83
--- /dev/null
+++ b/sound/soc/amd/Makefile
@@ -0,0 +1,11 @@
+ccflags-y := -Iinclude/drm -Idrivers/gpu/drm/amdsoc/
+ccflags-y += -Idrivers/gpu/drm/amdsoc/include/
+ccflags-y += -Idrivers/gpu/drm/amd/include/bus/
+ccflags-y += -Idrivers/gpu/drm/amd/acp/include
+ccflags-y += -Idrivers/gpu/drm/amd/include/
+ccflags-y += -Idrivers/gpu/drm/amd/include/asic_reg/acp
+snd-soc-acp-pcm-objs	:= acp-pcm-dma.o
+snd-soc-acp-rt286-mach-objs := acp-rt286.o
+
+obj-$(CONFIG_SND_SOC_AMD_ACP) += snd-soc-acp-pcm.o
+obj-$(CONFIG_SND_SOC_AMD_CZ_RT286_MACH) += snd-soc-acp-rt286-mach.o
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c
new file mode 100644
index 0000000..7e0e5cb
--- /dev/null
+++ b/sound/soc/amd/acp-pcm-dma.c
@@ -0,0 +1,759 @@
+/*
+ * AMD ALSA SoC PCM Driver
+ *
+ * Copyright 2014-2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ */
+
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/pci.h>
+#include <linux/pm_runtime.h>
+
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#include "amd_acp.h"
+#include "amd_gnb_bus.h"
+
+#define PLAYBACK_MIN_NUM_PERIODS    2
+#define PLAYBACK_MAX_NUM_PERIODS    2
+#define PLAYBACK_MAX_PERIOD_SIZE    16384
+#define PLAYBACK_MIN_PERIOD_SIZE    1024
+#define CAPTURE_MIN_NUM_PERIODS     2
+#define CAPTURE_MAX_NUM_PERIODS     2
+#define CAPTURE_MAX_PERIOD_SIZE     16384
+#define CAPTURE_MIN_PERIOD_SIZE     1024
+
+#define NUM_DSCRS_PER_CHANNEL 2
+
+#define MAX_BUFFER (PLAYBACK_MAX_PERIOD_SIZE * PLAYBACK_MAX_NUM_PERIODS)
+#define MIN_BUFFER MAX_BUFFER
+
+#define TWO_CHANNEL_SUPPORT     2	/* up to 2.0 */
+#define FOUR_CHANNEL_SUPPORT    4	/* up to 3.1 */
+#define SIX_CHANNEL_SUPPORT     6	/* up to 5.1 */
+#define EIGHT_CHANNEL_SUPPORT   8	/* up to 7.1 */
+
+
+static const struct snd_pcm_hardware acp_pcm_hardware_playback = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP |
+		SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BATCH |
+		SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
+	/* formats,rates,channels  based on i2s doc. */
+	.formats = SNDRV_PCM_FMTBIT_S16_LE |
+		SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
+	.channels_min = 1,
+	.channels_max = 8,
+	.rates = SNDRV_PCM_RATE_8000_96000,
+	.rate_min = 8000,
+	.rate_max = 96000,
+	.buffer_bytes_max = PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE,
+	.period_bytes_min = PLAYBACK_MIN_PERIOD_SIZE,
+	.period_bytes_max = PLAYBACK_MAX_PERIOD_SIZE,
+	.periods_min = PLAYBACK_MIN_NUM_PERIODS,
+	.periods_max = PLAYBACK_MAX_NUM_PERIODS,
+	.fifo_size = 0,
+};
+
+static const struct snd_pcm_hardware acp_pcm_hardware_capture = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP |
+		SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_BATCH |
+	    SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
+	/* formats,rates,channels  based on i2s doc. */
+	.formats = SNDRV_PCM_FMTBIT_S16_LE |
+		SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE,
+	.channels_min = 1,
+	.channels_max = 2,
+	.rates = SNDRV_PCM_RATE_8000_48000,
+	.rate_min = 8000,
+	.rate_max = 48000,
+	.buffer_bytes_max = CAPTURE_MAX_NUM_PERIODS * CAPTURE_MAX_PERIOD_SIZE,
+	.period_bytes_min = CAPTURE_MIN_PERIOD_SIZE,
+	.period_bytes_max = CAPTURE_MAX_PERIOD_SIZE,
+	.periods_min = CAPTURE_MIN_NUM_PERIODS,
+	.periods_max = CAPTURE_MAX_NUM_PERIODS,
+	.fifo_size = 0,
+};
+
+struct audio_drv_data {
+	struct snd_pcm_substream *play_stream;
+	struct snd_pcm_substream *capture_stream;
+	struct amd_acp_device *acp_dev;
+	struct acp_irq_prv *iprv;
+};
+
+struct audio_substream_data {
+	struct amd_acp_device *acp_dev;
+	struct page *pg;
+	struct acp_dma_config *dma_config;
+	struct acp_i2s_config  *i2s_config;
+	unsigned int order;
+};
+
+static const struct snd_soc_component_driver dw_i2s_component = {
+	.name = "dw-i2s.0",
+};
+
+static void acp_pcm_period_elapsed(struct device *dev, u16 play_intr,
+							u16 capture_intr)
+{
+	struct snd_pcm_substream *substream;
+	struct audio_drv_data *irq_data =
+	    (struct audio_drv_data *)dev_get_drvdata(dev);
+
+	/* Inform ALSA about the period elapsed (one out of two periods) */
+	if (play_intr)
+		substream = irq_data->play_stream;
+	else if (capture_intr)
+		substream = irq_data->capture_stream;
+
+	if (substream->runtime && snd_pcm_running(substream))
+		snd_pcm_period_elapsed(substream);
+}
+
+static int acp_dma_open(struct snd_pcm_substream *substream)
+{
+	int ret = 0;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *prtd = substream->private_data;
+	struct audio_drv_data *intr_data =
+	    (struct audio_drv_data *)dev_get_drvdata(prtd->platform->dev);
+
+	struct audio_substream_data *adata =
+		kzalloc(sizeof(struct audio_substream_data), GFP_KERNEL);
+	if (adata == NULL)
+		return -ENOMEM;
+
+	adata->dma_config =
+			kzalloc(sizeof(struct acp_dma_config), GFP_KERNEL);
+	if (adata->dma_config == NULL) {
+		kfree(adata);
+		return -ENOMEM;
+	}
+
+	adata->i2s_config =
+			kzalloc(sizeof(struct acp_i2s_config), GFP_KERNEL);
+	if (adata->i2s_config == NULL) {
+		kfree(adata->dma_config);
+		kfree(adata);
+		return -ENOMEM;
+	}
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		runtime->hw = acp_pcm_hardware_playback;
+	else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+		runtime->hw = acp_pcm_hardware_capture;
+	else {
+		pr_err("Error in stream type\n");
+		return -EINVAL;
+	}
+
+	ret = snd_pcm_hw_constraint_integer(runtime,
+					    SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0) {
+		pr_err("snd_pcm_hw_constraint_integer failed\n");
+		return ret;
+	}
+
+	adata->acp_dev = intr_data->acp_dev;
+	runtime->private_data = adata;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		intr_data->play_stream = substream;
+	else
+		intr_data->capture_stream = substream;
+
+	return 0;
+}
+
+static int acp_dma_hw_params(struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params)
+{
+	int status;
+	uint64_t size;
+	struct snd_dma_buffer *dma_buffer;
+	struct page *pg;
+	u16 num_of_pages;
+
+	struct snd_pcm_runtime *runtime;
+	struct audio_substream_data *rtd;
+	struct amd_acp_device *acp_dev;
+
+	if (WARN_ON(!substream))
+		return -EINVAL;
+
+	dma_buffer = &substream->dma_buffer;
+
+	runtime = substream->runtime;
+	rtd = runtime->private_data;
+
+	if (WARN_ON(!rtd))
+		return -EINVAL;
+	acp_dev = rtd->acp_dev;
+
+	size = params_buffer_bytes(params);
+	status = snd_pcm_lib_malloc_pages(substream, size);
+	if (status < 0)
+		return status;
+
+	memset(substream->runtime->dma_area, 0, params_buffer_bytes(params));
+	pg = virt_to_page(substream->dma_buffer.area);
+
+	if (NULL != pg) {
+		/* Save for runtime private data */
+		rtd->pg = pg;
+		rtd->order = get_order(size);
+
+		/*Let ACP know the Allocated memory */
+		num_of_pages = PAGE_ALIGN(size) >> PAGE_SHIFT;
+
+		/* Fill the page table entries in ACP SRAM */
+
+		rtd->dma_config->pg = pg;
+		rtd->dma_config->size = size;
+		rtd->dma_config->num_of_pages = num_of_pages;
+		rtd->dma_config->direction = substream->stream;
+
+		acp_dev->config_dma(acp_dev, rtd->dma_config);
+
+		status = 0;
+	} else {
+		status = -ENOMEM;
+	}
+	return status;
+}
+
+static int acp_dma_hw_free(struct snd_pcm_substream *substream)
+{
+	return snd_pcm_lib_free_pages(substream);
+}
+
+static snd_pcm_uframes_t acp_dma_pointer(struct snd_pcm_substream *substream)
+{
+	u32 pos = 0;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_substream_data *rtd = runtime->private_data;
+	struct amd_acp_device *acp_dev = rtd->acp_dev;
+
+	pos = acp_dev->update_dma_pointer(acp_dev, substream->stream,
+				frames_to_bytes(runtime, runtime->period_size));
+	return bytes_to_frames(runtime, pos);
+
+}
+
+static int acp_dma_mmap(struct snd_pcm_substream *substream,
+			struct vm_area_struct *vma)
+{
+	return snd_pcm_lib_default_mmap(substream, vma);
+}
+
+static int acp_dma_prepare(struct snd_pcm_substream *substream)
+{
+	int ret;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_substream_data *rtd = runtime->private_data;
+	struct amd_acp_device *acp_dev = rtd->acp_dev;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+
+		acp_dev->config_dma_channel(acp_dev, SYSRAM_TO_ACP_CH_NUM,
+					PLAYBACK_START_DMA_DESCR_CH12,
+					NUM_DSCRS_PER_CHANNEL, 0);
+		acp_dev->config_dma_channel(acp_dev, ACP_TO_I2S_DMA_CH_NUM,
+					PLAYBACK_START_DMA_DESCR_CH13,
+					NUM_DSCRS_PER_CHANNEL, 0);
+		/* Fill ACP SRAM with zeros from System RAM which is zero-ed
+		 * in hw_params */
+		ret = acp_dev->dma_start(rtd->acp_dev,
+						SYSRAM_TO_ACP_CH_NUM, false);
+		if (ret < 0)
+			ret = -EFAULT;
+
+		/* Now configure DMA to transfer only first half of System RAM
+		 * buffer before playback is triggered. This will overwrite
+		 * zero-ed second half of SRAM buffer */
+		acp_dev->config_dma_channel(acp_dev, SYSRAM_TO_ACP_CH_NUM,
+					PLAYBACK_START_DMA_DESCR_CH12,
+					1, 0);
+	} else {
+		acp_dev->config_dma_channel(acp_dev, ACP_TO_SYSRAM_CH_NUM,
+					CAPTURE_START_DMA_DESCR_CH14,
+					NUM_DSCRS_PER_CHANNEL, 0);
+		acp_dev->config_dma_channel(acp_dev, I2S_TO_ACP_DMA_CH_NUM,
+					CAPTURE_START_DMA_DESCR_CH15,
+					NUM_DSCRS_PER_CHANNEL, 0);
+	}
+	return 0;
+}
+
+static int acp_dma_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_substream_data *rtd = runtime->private_data;
+	struct amd_acp_device *acp_dev = rtd->acp_dev;
+
+	int ret = -EIO;
+
+	if (!rtd)
+		return -EINVAL;
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			ret = acp_dev->dma_start(rtd->acp_dev,
+						SYSRAM_TO_ACP_CH_NUM, false);
+			if (ret < 0)
+				ret = -EFAULT;
+			else
+				acp_dev->prebuffer_audio(rtd->acp_dev);
+
+			ret = acp_dev->dma_start(acp_dev,
+					    ACP_TO_I2S_DMA_CH_NUM, true);
+		} else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
+			ret = acp_dev->dma_start(acp_dev,
+					    I2S_TO_ACP_DMA_CH_NUM, true);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			ret = acp_dev->dma_stop(acp_dev, SYSRAM_TO_ACP_CH_NUM);
+			if (0 == ret)
+				ret = acp_dev->dma_stop(acp_dev,
+						   ACP_TO_I2S_DMA_CH_NUM);
+		} else if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
+			ret = acp_dev->dma_stop(acp_dev, I2S_TO_ACP_DMA_CH_NUM);
+			if (0 == ret)
+				ret = acp_dev->dma_stop(acp_dev,
+						ACP_TO_SYSRAM_CH_NUM);
+		}
+		break;
+	default:
+		ret = -EINVAL;
+
+	}
+	return ret;
+}
+
+static int acp_dma_new(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret;
+	struct snd_pcm *pcm;
+
+	pcm = rtd->pcm;
+	ret = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
+					NULL, MIN_BUFFER, MAX_BUFFER);
+	return ret;
+}
+
+static int acp_dma_close(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_substream_data *rtd = runtime->private_data;
+
+	struct snd_soc_pcm_runtime *prtd = substream->private_data;
+	kfree(rtd->dma_config);
+	kfree(rtd->i2s_config);
+	kfree(rtd);
+
+	pm_runtime_mark_last_busy(prtd->platform->dev);
+	return 0;
+}
+
+static int acp_dai_i2s_hwparams(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params,
+				struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *prtd = substream->private_data;
+
+	struct audio_substream_data *rtd = runtime->private_data;
+	struct amd_acp_device *acp_dev = rtd->acp_dev;
+	struct device *dev = prtd->platform->dev;
+
+	u32 chan_nr;
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		rtd->i2s_config->xfer_resolution = 0x02;
+		break;
+
+	case SNDRV_PCM_FORMAT_S24_LE:
+		rtd->i2s_config->xfer_resolution = 0x04;
+		break;
+
+	case SNDRV_PCM_FORMAT_S32_LE:
+		rtd->i2s_config->xfer_resolution = 0x05;
+		break;
+
+	default:
+		dev_err(dev, "designware-i2s: unsuppted PCM fmt");
+		return -EINVAL;
+	}
+
+	chan_nr = params_channels(params);
+
+	switch (chan_nr) {
+	case EIGHT_CHANNEL_SUPPORT:
+		rtd->i2s_config->ch_reg = 3;
+		break;
+	case SIX_CHANNEL_SUPPORT:
+		rtd->i2s_config->ch_reg = 2;
+		break;
+	case FOUR_CHANNEL_SUPPORT:
+		rtd->i2s_config->ch_reg = 1;
+		break;
+	case TWO_CHANNEL_SUPPORT:
+		rtd->i2s_config->ch_reg = 0;
+		break;
+	default:
+		dev_err(dev, "channel not supported\n");
+		return -EINVAL;
+	}
+
+	rtd->i2s_config->direction = substream->stream;
+
+	acp_dev->config_i2s(acp_dev, rtd->i2s_config);
+
+	return 0;
+}
+
+static int acp_dai_i2s_trigger(struct snd_pcm_substream *substream,
+			       int cmd, struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_substream_data *rtd = runtime->private_data;
+	struct amd_acp_device *acp_dev = rtd->acp_dev;
+
+	int ret = 0;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		acp_dev->i2s_start(acp_dev, substream->stream);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		acp_dev->i2s_stop(acp_dev, substream->stream);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static int acp_dai_i2s_prepare(struct snd_pcm_substream *substream,
+			       struct snd_soc_dai *dai)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct audio_substream_data *rtd = runtime->private_data;
+	struct amd_acp_device *acp_dev = rtd->acp_dev;
+
+	acp_dev->i2s_reset(acp_dev, substream->stream);
+	return 0;
+}
+
+static struct snd_pcm_ops acp_dma_ops = {
+	.open = acp_dma_open,
+	.close = acp_dma_close,
+	.ioctl = snd_pcm_lib_ioctl,
+	.hw_params = acp_dma_hw_params,
+	.hw_free = acp_dma_hw_free,
+	.trigger = acp_dma_trigger,
+	.pointer = acp_dma_pointer,
+	.mmap = acp_dma_mmap,
+	.prepare = acp_dma_prepare,
+};
+
+struct snd_soc_dai_ops acp_dai_i2s_ops = {
+	.prepare = acp_dai_i2s_prepare,
+	.hw_params = acp_dai_i2s_hwparams,
+	.trigger = acp_dai_i2s_trigger,
+};
+
+/* CZ i2s configuration */
+static struct snd_soc_dai_driver i2s_dai_driver_cz = {
+	.playback = {
+		     .stream_name = "I2S Playback",
+		     .channels_min = 2,
+		     .channels_max = 2,
+		     .rates = SNDRV_PCM_RATE_8000_96000,
+		     .formats = SNDRV_PCM_FMTBIT_S24_LE |
+				SNDRV_PCM_FMTBIT_S32_LE,
+
+		     .rate_min = 8000,
+		     .rate_max = 96000,
+		     },
+	.capture = {
+		    .stream_name = "I2S Capture",
+		    .channels_min = 2,
+		    .channels_max = 2,
+		    .rates = SNDRV_PCM_RATE_8000_48000,
+		    .formats = SNDRV_PCM_FMTBIT_S24_LE |
+				SNDRV_PCM_FMTBIT_S32_LE,
+		    .rate_min = 8000,
+		    .rate_max = 48000,
+		    },
+	.ops = &acp_dai_i2s_ops,
+};
+
+static struct snd_soc_platform_driver acp_asoc_platform = {
+	.ops = &acp_dma_ops,
+	.pcm_new = acp_dma_new,
+};
+
+static int acp_alsa_register(struct device *dev, struct amd_acp_device *acp_dev,
+				struct amd_gnb_bus_dev *adev)
+{
+	int status;
+
+	status = snd_soc_register_platform(dev, &acp_asoc_platform);
+	if (STATUS_SUCCESS != status) {
+		dev_err(dev, "Unable to register ALSA platform device\n");
+		goto exit_platform;
+	} else {
+		 /* SNDRV_PCM_FMTBIT_S16_LE is not supported in CZ */
+		status = snd_soc_register_component(dev,
+					&dw_i2s_component,
+					&i2s_dai_driver_cz, 1);
+
+		if (STATUS_SUCCESS != status) {
+			dev_err(dev, "Unable to register i2s dai\n");
+			goto exit_dai;
+		} else {
+			dev_info(dev, "ACP device registered with ALSA\n");
+			return status;
+		}
+	}
+
+exit_dai:
+	snd_soc_unregister_platform(dev);
+exit_platform:
+	acp_dev->fini(acp_dev);
+	return status;
+}
+
+static int acp_amdsoc_probe(struct amd_gnb_bus_dev *adev)
+{
+	int status;
+	struct audio_drv_data *audio_drv_data;
+	struct amd_acp_device *acp_dev = adev->private_data;
+
+	if (AMD_GNB_IP_ACP_PCM != adev->ip) {
+		dev_err(&adev->dev, "Not an ACP Device on AMD GNB bus\n");
+		return -ENODEV;
+	}
+
+	audio_drv_data = devm_kzalloc(&adev->dev,
+						sizeof(struct audio_drv_data),
+						GFP_KERNEL);
+	if (audio_drv_data == NULL)
+		return -ENOMEM;
+
+	audio_drv_data->iprv = devm_kzalloc(&adev->dev,
+						sizeof(struct acp_irq_prv),
+						GFP_KERNEL);
+	if (audio_drv_data->iprv == NULL)
+		return -ENOMEM;
+
+	/* The following members gets populated in device 'open'
+	 * function. Till then interrupts are disabled in 'acp_hw_init'
+	 * and device doesn't generate any interrupts.
+	 */
+
+	audio_drv_data->play_stream = NULL;
+	audio_drv_data->capture_stream = NULL;
+	audio_drv_data->acp_dev = acp_dev;
+
+	audio_drv_data->iprv->dev = &adev->dev;
+	audio_drv_data->iprv->acp_dev = acp_dev;
+	audio_drv_data->iprv->set_elapsed = acp_pcm_period_elapsed;
+
+	dev_set_drvdata(&adev->dev, audio_drv_data);
+
+	/* Initialize the ACP */
+	status = acp_dev->init(acp_dev, audio_drv_data->iprv);
+
+	if (STATUS_SUCCESS == status)
+		status = acp_alsa_register(&adev->dev, acp_dev, adev);
+	else
+		pr_err("ACP initialization Failed\n");
+
+	pm_runtime_set_autosuspend_delay(&adev->dev, 10000);
+	pm_runtime_use_autosuspend(&adev->dev);
+	pm_runtime_enable(&adev->dev);
+
+	return status;
+}
+
+static int acp_amdsoc_remove(struct amd_gnb_bus_dev *adev)
+{
+	struct amd_acp_device *acp_dev = adev->private_data;
+
+	snd_soc_unregister_component(&adev->dev);
+	snd_soc_unregister_platform(&adev->dev);
+
+	acp_dev->fini(acp_dev);
+	pm_runtime_disable(&adev->dev);
+	return 0;
+}
+
+static int acp_pcm_suspend(struct device *dev)
+{
+	bool pm_rts;
+	struct audio_drv_data *adata =
+	    (struct audio_drv_data *)dev_get_drvdata(dev);
+
+	pm_rts = pm_runtime_status_suspended(dev);
+	if (pm_rts == false)
+		adata->acp_dev->fini(adata->acp_dev);
+
+	return 0;
+}
+
+static int acp_pcm_resume(struct device *dev)
+{
+	bool pm_rts;
+	struct snd_pcm_substream *pstream, *cstream;
+	struct snd_pcm_runtime *prtd, *crtd;
+	struct audio_substream_data *rtd;
+
+	struct audio_drv_data *adata =
+	    (struct audio_drv_data *)dev_get_drvdata(dev);
+
+	pm_rts = pm_runtime_status_suspended(dev);
+	if (pm_rts == true) {
+		/* Resumed from system wide suspend and there is
+		 * no pending audio activity to resume. */
+		pm_runtime_disable(dev);
+		pm_runtime_set_active(dev);
+		pm_runtime_enable(dev);
+
+		goto out;
+	}
+
+	pstream = adata->play_stream;
+	prtd = pstream ? pstream->runtime : NULL;
+	if (prtd != NULL) {
+		/* Resume playback stream from a suspended state */
+		rtd = prtd->private_data;
+
+		adata->acp_dev->config_dma(adata->acp_dev, rtd->dma_config);
+		adata->acp_dev->config_i2s(adata->acp_dev, rtd->i2s_config);
+	}
+
+	cstream = adata->capture_stream;
+	crtd =  cstream ? cstream->runtime : NULL;
+	if (crtd != NULL) {
+		/* Resume capture stream from a suspended state */
+		rtd = crtd->private_data;
+
+		adata->acp_dev->config_dma(adata->acp_dev, rtd->dma_config);
+		adata->acp_dev->config_i2s(adata->acp_dev, rtd->i2s_config);
+	}
+out:
+	return 0;
+}
+
+int acp_pcm_runtime_suspend(struct device *dev)
+{
+	struct audio_drv_data *adata =
+	    (struct audio_drv_data *)dev_get_drvdata(dev);
+
+	adata->acp_dev->acp_suspend(adata->acp_dev);
+	return 0;
+}
+
+int acp_pcm_runtime_resume(struct device *dev)
+{
+	struct audio_drv_data *adata =
+	    (struct audio_drv_data *)dev_get_drvdata(dev);
+
+	adata->acp_dev->acp_resume(adata->acp_dev);
+	return 0;
+}
+
+int acp_pcm_runtime_idle(struct device *dev)
+{
+	return 0;
+}
+
+static const struct dev_pm_ops acp_pm_ops = {
+	.suspend = acp_pcm_suspend,
+	.resume = acp_pcm_resume,
+	.runtime_suspend = acp_pcm_runtime_suspend,
+	.runtime_resume = acp_pcm_runtime_resume,
+	.runtime_idle = acp_pcm_runtime_idle
+};
+
+static struct amd_gnb_bus_driver acp_dma_driver = {
+	.name = "acp-pcm-driver",
+	.ip = AMD_GNB_IP_ACP_PCM,
+	.probe = acp_amdsoc_probe,
+	.remove = acp_amdsoc_remove,
+	.driver = {
+		.pm = &acp_pm_ops,
+	},
+};
+
+static int __init amdsoc_bus_acp_dma_driver_init(void)
+{
+	int ret = 0;
+
+	ret = amd_gnb_bus_register_driver(&acp_dma_driver,
+					 THIS_MODULE, "acp-pcm-driver");
+	if (ret) {
+		pr_err("ACP: Unable to register with AMD GNB BUS!\n");
+		return ret;
+	}
+
+	return 0;
+
+}
+
+static void __exit amdsoc_bus_acp_dma_driver_exit(void)
+{
+	pr_info("ACP: PCM driver exit\n");
+	amd_gnb_bus_unregister_driver(&acp_dma_driver);
+}
+
+module_init(amdsoc_bus_acp_dma_driver_init);
+module_exit(amdsoc_bus_acp_dma_driver_exit);
+
+MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com");
+MODULE_DESCRIPTION("AMD ACP PCM Driver");
+MODULE_LICENSE("GPL and additional rights");
diff --git a/sound/soc/amd/acp-rt286.c b/sound/soc/amd/acp-rt286.c
new file mode 100644
index 0000000..8be9236
--- /dev/null
+++ b/sound/soc/amd/acp-rt286.c
@@ -0,0 +1,264 @@
+/*
+ * Machine driver for AMD ACP Audio engine using Realtek RT286 codec
+ *
+ * Copyright 2014-2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ */
+
+#include <sound/core.h>
+#include <sound/soc.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include <sound/jack.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/acpi.h>
+
+#include "../codecs/rt286.h"
+
+#ifdef CONFIG_PINCTRL_AMD
+
+#define CZ_HPJACK_GPIO  7
+#define CZ_HPJACK_DEBOUNCE 150
+
+#endif
+
+#define CZ_CODEC_I2C_ADDR 0x1c
+#define CZ_CODEC_I2C_ADAPTER_ID 3
+
+struct i2c_client *i2c_client;
+
+struct acp_rt286 {
+	int gpio_hp_det;
+};
+
+static struct snd_soc_jack cz_jack;
+static struct snd_soc_jack_pin cz_pins[] = {
+	{
+		.pin = "Analog Mic",
+		.mask = SND_JACK_MICROPHONE,
+	},
+	{
+		.pin = "Headphones",
+		.mask = SND_JACK_HEADPHONE,
+	},
+};
+
+static int carrizo_hw_params(struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_card *card = rtd->card;
+	int sample_rate;
+	int err;
+
+	err = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S |
+				SND_SOC_DAIFMT_NB_NF |
+				SND_SOC_DAIFMT_CBM_CFM);
+	if (err < 0) {
+		dev_err(card->dev, "unable to set codec dai format\n");
+		return err;
+	}
+
+	sample_rate = params_rate(params);
+
+	err = snd_soc_dai_set_sysclk(codec_dai, RT286_SCLK_S_PLL, 24000000,
+					SND_SOC_CLOCK_OUT);
+	if (err < 0) {
+		dev_err(card->dev, "unable to set codec dai clock\n");
+		return err;
+	}
+
+	return 0;
+
+}
+
+static struct snd_soc_ops carrizo_rt286_ops = {
+	.hw_params = carrizo_hw_params,
+};
+
+static int carrizo_init(struct snd_soc_pcm_runtime *rtd)
+{
+	/* TODO: check whether dapm widgets needs to be
+	 * dsiconnected initially. */
+	int ret;
+	struct snd_soc_card *card;
+	struct snd_soc_codec *codec;
+
+	codec = rtd->codec;
+	card = rtd->card;
+	ret = snd_soc_card_jack_new(card, "Headset",
+		SND_JACK_HEADSET, &cz_jack, cz_pins, ARRAY_SIZE(cz_pins));
+
+	if (ret)
+		return ret;
+
+	rt286_mic_detect(codec, &cz_jack);
+	return 0;
+}
+
+
+static struct snd_soc_dai_link carrizo_dai_rt286 = {
+	.name = "amd-rt286",
+	.stream_name = "RT286_AIF1",
+	.platform_name = "acp_pcm_dev",
+	.cpu_dai_name = "acp_pcm_dev",
+	.codec_dai_name = "rt286-aif1",
+	.codec_name = "rt286.3-001c",
+	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+			| SND_SOC_DAIFMT_CBM_CFM,
+	.ops = &carrizo_rt286_ops,
+	.init = carrizo_init,
+};
+
+static const struct snd_soc_dapm_widget cz_widgets[] = {
+	SND_SOC_DAPM_HP("Headphones", NULL),
+	SND_SOC_DAPM_MIC("Analog Mic", NULL),
+};
+
+static const struct snd_soc_dapm_route cz_audio_route[] = {
+	{"Headphones", NULL, "HPO L"},
+	{"Headphones", NULL, "HPO R"},
+	{"MIC1", NULL, "Analog Mic"},
+};
+
+static struct snd_soc_card carrizo_card = {
+	.name = "acp-rt286",
+	.owner = THIS_MODULE,
+	.dai_link = &carrizo_dai_rt286,
+	.num_links = 1,
+
+	.dapm_widgets = cz_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(cz_widgets),
+	.dapm_routes = cz_audio_route,
+	.num_dapm_routes = ARRAY_SIZE(cz_audio_route),
+};
+
+static int carrizo_probe(struct platform_device *pdev)
+{
+	int ret;
+	struct acp_rt286 *machine;
+	struct snd_soc_card *card;
+
+	machine = devm_kzalloc(&pdev->dev, sizeof(struct acp_rt286),
+				GFP_KERNEL);
+	if (!machine)
+		return -ENOMEM;
+
+	card = &carrizo_card;
+	carrizo_card.dev = &pdev->dev;
+
+	platform_set_drvdata(pdev, card);
+	snd_soc_card_set_drvdata(card, machine);
+
+	ret = snd_soc_register_card(card);
+	if (ret) {
+		dev_err(&pdev->dev,
+				"snd_soc_register_card(%s) failed: %d\n",
+				carrizo_card.name, ret);
+		return ret;
+	}
+	return 0;
+}
+
+static int carrizo_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card;
+
+	card = platform_get_drvdata(pdev);
+	snd_soc_unregister_card(card);
+
+	return 0;
+}
+
+static const struct acpi_device_id cz_audio_acpi_match[] = {
+	{ "I2SC1002", 0 },
+	{},
+};
+
+static struct platform_driver carrizo_pcm_driver = {
+	.driver = {
+		.name = "carrizo_i2s_audio",
+		.acpi_match_table = ACPI_PTR(cz_audio_acpi_match),
+		.owner = THIS_MODULE,
+		.pm = &snd_soc_pm_ops,
+	},
+	.probe = carrizo_probe,
+	.remove = carrizo_remove,
+};
+
+static int __init cz_audio_init(void)
+{
+	int ret;
+	struct i2c_adapter *adapter;
+	struct i2c_board_info cz_board_info;
+	const char *codec_acpi_name = "rt288";
+
+	adapter = i2c_get_adapter(CZ_CODEC_I2C_ADAPTER_ID);
+	if (!adapter)
+		return -ENODEV;
+
+	memset(&cz_board_info, 0, sizeof(struct i2c_board_info));
+	cz_board_info.addr = CZ_CODEC_I2C_ADDR;
+	strlcpy(cz_board_info.type, codec_acpi_name, I2C_NAME_SIZE);
+
+#ifdef CONFIG_PINCTRL_AMD
+	if (gpio_is_valid(CZ_HPJACK_GPIO)) {
+		ret = gpio_request_one(CZ_HPJACK_GPIO, GPIOF_DIR_IN |
+						GPIOF_EXPORT, "hp-gpio");
+		if (ret != 0)
+			pr_err("gpio_request_one failed : err %d\n", ret);
+
+		cz_board_info.irq = gpio_to_irq(CZ_HPJACK_GPIO);
+
+		gpio_set_debounce(CZ_HPJACK_GPIO, CZ_HPJACK_DEBOUNCE);
+	}
+#endif
+	i2c_client = i2c_new_device(adapter, &cz_board_info);
+	i2c_put_adapter(adapter);
+	if (!i2c_client)
+		return -ENODEV;
+
+	platform_driver_register(&carrizo_pcm_driver);
+	return 0;
+}
+
+static void __exit cz_audio_exit(void)
+{
+#ifdef CONFIG_PINCTRL_AMD
+	if (gpio_is_valid(CZ_HPJACK_GPIO))
+		gpio_free(CZ_HPJACK_GPIO);
+#endif
+	i2c_unregister_device(i2c_client);
+
+	platform_driver_unregister(&carrizo_pcm_driver);
+}
+
+module_init(cz_audio_init);
+module_exit(cz_audio_exit);
+
+MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com");
+MODULE_DESCRIPTION("CZ-rt288 Audio Support");
+MODULE_LICENSE("GPL and additional rights");
diff --git a/sound/soc/codecs/rt286.c b/sound/soc/codecs/rt286.c
index 0fcda35..56ae984 100644
--- a/sound/soc/codecs/rt286.c
+++ b/sound/soc/codecs/rt286.c
@@ -358,6 +358,15 @@ static int rt286_jack_detect(struct rt286_priv *rt286, bool *hp, bool *mic)
 		*hp = buf & 0x80000000;
 		regmap_read(rt286->regmap, RT286_GET_MIC1_SENSE, &buf);
 		*mic = buf & 0x80000000;
+		if (*mic) {
+			regmap_write(rt286->regmap, RT286_SET_MIC1, 0x24);
+			msleep(50);
+
+			regmap_update_bits(rt286->regmap,
+						RT286_CBJ_CTRL1,
+						0xfcc0, 0xd400);
+			msleep(300);
+		}
 	}
 
 	snd_soc_dapm_disable_pin(&rt286->codec->dapm, "HV");
@@ -1078,7 +1087,6 @@ static int rt286_suspend(struct snd_soc_codec *codec)
 
 	regcache_cache_only(rt286->regmap, true);
 	regcache_mark_dirty(rt286->regmap);
-
 	return 0;
 }
 
@@ -1089,7 +1097,6 @@ static int rt286_resume(struct snd_soc_codec *codec)
 	regcache_cache_only(rt286->regmap, false);
 	rt286_index_sync(codec);
 	regcache_sync(rt286->regmap);
-
 	return 0;
 }
 #else
@@ -1099,7 +1106,8 @@ static int rt286_resume(struct snd_soc_codec *codec)
 
 #define RT286_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
 #define RT286_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
-			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)
+			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8) | \
+			SNDRV_PCM_FMTBIT_S32_LE
 
 static const struct snd_soc_dai_ops rt286_aif_dai_ops = {
 	.hw_params = rt286_hw_params,
@@ -1189,6 +1197,7 @@ MODULE_DEVICE_TABLE(i2c, rt286_i2c_id);
 
 static const struct acpi_device_id rt286_acpi_match[] = {
 	{ "INT343A", 0 },
+	{ "RTK0000", 0 },
 	{},
 };
 MODULE_DEVICE_TABLE(acpi, rt286_acpi_match);
@@ -1214,10 +1223,15 @@ static struct dmi_system_id dmi_dell_dino[] = {
 	{ }
 };
 
+static struct rt286_platform_data rt286_acpi_data = {
+	.cbj_en = false,
+	.gpio2_en = false,
+};
+
 static int rt286_i2c_probe(struct i2c_client *i2c,
 			   const struct i2c_device_id *id)
 {
-	struct rt286_platform_data *pdata = dev_get_platdata(&i2c->dev);
+	struct rt286_platform_data *pdata = &rt286_acpi_data;
 	struct rt286_priv *rt286;
 	int i, ret, val;
 
@@ -1314,7 +1328,7 @@ static int rt286_i2c_probe(struct i2c_client *i2c,
 
 	if (rt286->i2c->irq) {
 		ret = request_threaded_irq(rt286->i2c->irq, NULL, rt286_irq,
-			IRQF_TRIGGER_HIGH | IRQF_ONESHOT, "rt286", rt286);
+			IRQF_TRIGGER_RISING | IRQF_ONESHOT, "rt286", rt286);
 		if (ret != 0) {
 			dev_err(&i2c->dev,
 				"Failed to reguest IRQ: %d\n", ret);
-- 
1.9.1