[RESEND,v5,2/6] ASoC: amd: Refactoring of DAI from DMA driver
diff mbox series

Message ID 1573629249-13272-3-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com
State New
Headers show
Series
  • [v5,1/6] ASoC: amd:Create multiple I2S platform device Endpoint
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Commit Message

Ravulapati Vishnu vardhan rao Nov. 13, 2019, 7:14 a.m. UTC
Asoc: PCM DMA driver should only have dma ops.
So Removed all DAI related functionality.Refactoring
the PCM DMA diver code.Added new file containing only DAI ops.

Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@amd.com>
---
 sound/soc/amd/raven/Makefile        |   2 +
 sound/soc/amd/raven/acp3x-i2s.c     | 272 ++++++++++++++++++++++++++++++++++++
 sound/soc/amd/raven/acp3x-pcm-dma.c | 251 +++++----------------------------
 sound/soc/amd/raven/acp3x.h         |  42 ++++++
 4 files changed, 348 insertions(+), 219 deletions(-)
 create mode 100644 sound/soc/amd/raven/acp3x-i2s.c

Comments

Pierre-Louis Bossart Nov. 13, 2019, 4:22 p.m. UTC | #1
> +	val = rv_readl(adata->acp3x_base + mmACP_BTTDM_ITER);
> +	rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_ITER);
> +	val = rv_readl(adata->acp3x_base + mmACP_BTTDM_IRER);
> +	rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_IRER);
> +
> +	val = (FRM_LEN | (slots << 15) | (slot_len << 18));

nit-pick: you have extra parentheses that are not needed for (val | 
0x02) and the outer ones on the previous line


> +static int acp3x_i2s_trigger(struct snd_pcm_substream *substream,
> +		int cmd, struct snd_soc_dai *dai)
> +{
> +	int ret = 0;

nit-pick: move last, xmas-style

> +	struct i2s_stream_instance *rtd = substream->runtime->private_data;
> +	u32 val, period_bytes;

> +static int acp3x_dai_probe(struct platform_device *pdev)
> +{
> +	int status;
> +	struct resource *res;
> +	struct i2s_dev_data *adata;
> +
> +	adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data),
> +			GFP_KERNEL);
> +	if (!adata)
> +		return -ENOMEM;
> +
> +	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +	if (!res) {
> +		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
> +		goto err;
> +	}
> +
> +	adata->acp3x_base = devm_ioremap(&pdev->dev, res->start,
> +			resource_size(res));
> +	if (IS_ERR(adata->acp3x_base))
> +		return PTR_ERR(adata->acp3x_base);
> +
> +	adata->i2s_irq = res->start;
> +	dev_set_drvdata(&pdev->dev, adata);
> +	status = devm_snd_soc_register_component(&pdev->dev,
> +			&acp3x_dai_component,
> +			&acp3x_i2s_dai, 1);
> +	if (status) {
> +		dev_err(&pdev->dev, "Fail to register acp i2s dai\n");
> +		goto dev_err;
> +	}
> +	pm_runtime_set_autosuspend_delay(&pdev->dev, 10000);
> +	pm_runtime_use_autosuspend(&pdev->dev);
> +	pm_runtime_enable(&pdev->dev);
> +	return 0;
> +err:
> +	kfree(adata);
> +	return -ENOMEM;
> +dev_err:
> +	kfree(adata->acp3x_base);
> +	kfree(adata);
> +	kfree(res);
> +	return -ENODEV;

this can be improved a bit by using ret = -ENOMEM/-ENODEV before the 
goto, and organizing the labels and the kfree calls in the reverse order 
of the initialization/allocation steps.


> @@ -666,7 +461,24 @@ static int acp3x_audio_probe(struct platform_device *pdev)
>   	pm_runtime_use_autosuspend(&pdev->dev);
>   	pm_runtime_enable(&pdev->dev);
>   	return 0;
> +
> +err:
> +	kfree(res);
> +	return -ENOMEM;
> +base_err:
> +	kfree(res);
> +	kfree(adata);
> +	return -ENOMEM;
> +io_irq:
> +	kfree(res);
> +	kfree(adata->acp3x_base);
> +	kfree(adata);
> +	return -ENOMEM;
> +
>   dev_err:
> +	kfree(res);
> +	kfree(adata->acp3x_base);
> +	kfree(adata);
>   	status = acp3x_deinit(adata->acp3x_base);
>   	if (status)
>   		dev_err(&pdev->dev, "ACP de-init failed\n");
same here, you should have all the kfrees in the reverse order of the 
kzalloc, and labels pointing straight at the sequence that needs to be 
executed. Duplicating the error flow makes it hard to maintain the code 
and check for memory leaks.

Patch
diff mbox series

diff --git a/sound/soc/amd/raven/Makefile b/sound/soc/amd/raven/Makefile
index 108d1ac..8eef292 100644
--- a/sound/soc/amd/raven/Makefile
+++ b/sound/soc/amd/raven/Makefile
@@ -1,6 +1,8 @@ 
 # SPDX-License-Identifier: GPL-2.0+
 # Raven Ridge platform Support
 snd-pci-acp3x-objs	:= pci-acp3x.o
+snd-acp3x-i2s-objs	:= acp3x-i2s.o
 snd-acp3x-pcm-dma-objs	:= acp3x-pcm-dma.o
 obj-$(CONFIG_SND_SOC_AMD_ACP3x)	 += snd-pci-acp3x.o
+obj-$(CONFIG_SND_SOC_AMD_ACP3x)	 += snd-acp3x-i2s.o
 obj-$(CONFIG_SND_SOC_AMD_ACP3x)	 += snd-acp3x-pcm-dma.o
diff --git a/sound/soc/amd/raven/acp3x-i2s.c b/sound/soc/amd/raven/acp3x-i2s.c
new file mode 100644
index 0000000..0f27abc
--- /dev/null
+++ b/sound/soc/amd/raven/acp3x-i2s.c
@@ -0,0 +1,272 @@ 
+// SPDX-License-Identifier: GPL-2.0+
+//
+// AMD ALSA SoC PCM Driver
+//
+//Copyright 2016 Advanced Micro Devices, Inc.
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/pm_runtime.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <linux/dma-mapping.h>
+
+#include "acp3x.h"
+
+#define DRV_NAME "acp3x-i2s"
+
+static int acp3x_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt)
+{
+
+	struct i2s_dev_data *adata = snd_soc_dai_get_drvdata(cpu_dai);
+
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+
+	case SND_SOC_DAIFMT_I2S:
+		adata->tdm_mode = false;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		adata->tdm_mode = true;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int acp3x_i2s_set_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask,
+		u32 rx_mask, int slots, int slot_width)
+{
+	u32 val;
+	u16 slot_len;
+
+	struct i2s_dev_data *adata = snd_soc_dai_get_drvdata(cpu_dai);
+
+	/* These values are as per Hardware Spec */
+
+	switch (slot_width) {
+	case SLOT_WIDTH_8:
+		slot_len = 8;
+		break;
+	case SLOT_WIDTH_16:
+		slot_len = 16;
+		break;
+	case SLOT_WIDTH_24:
+		slot_len = 24;
+		break;
+	case SLOT_WIDTH_32:
+		slot_len = 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	val = rv_readl(adata->acp3x_base + mmACP_BTTDM_ITER);
+	rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_ITER);
+	val = rv_readl(adata->acp3x_base + mmACP_BTTDM_IRER);
+	rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_IRER);
+
+	val = (FRM_LEN | (slots << 15) | (slot_len << 18));
+	rv_writel(val, adata->acp3x_base + mmACP_BTTDM_TXFRMT);
+	rv_writel(val, adata->acp3x_base + mmACP_BTTDM_RXFRMT);
+
+	adata->tdm_fmt = val;
+	return 0;
+}
+
+static int acp3x_i2s_hwparams(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params,
+		struct snd_soc_dai *dai)
+{
+	u32 val = 0;
+	struct i2s_stream_instance *rtd = substream->runtime->private_data;
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_U8:
+	case SNDRV_PCM_FORMAT_S8:
+		rtd->xfer_resolution = 0x0;
+		break;
+	case SNDRV_PCM_FORMAT_S16_LE:
+		rtd->xfer_resolution = 0x02;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		rtd->xfer_resolution = 0x04;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		rtd->xfer_resolution = 0x05;
+		break;
+	default:
+		return -EINVAL;
+	}
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER);
+		val = val | (rtd->xfer_resolution  << 3);
+		rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER);
+	} else {
+		val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER);
+		val = val | (rtd->xfer_resolution  << 3);
+		rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER);
+	}
+	return 0;
+}
+
+static int acp3x_i2s_trigger(struct snd_pcm_substream *substream,
+		int cmd, struct snd_soc_dai *dai)
+{
+	int ret = 0;
+	struct i2s_stream_instance *rtd = substream->runtime->private_data;
+	u32 val, period_bytes;
+
+	period_bytes = frames_to_bytes(substream->runtime,
+			substream->runtime->period_size);
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		rtd->bytescount = acp_get_byte_count(rtd,
+						substream->stream);
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			rv_writel(period_bytes, rtd->acp3x_base +
+					mmACP_BT_TX_INTR_WATERMARK_SIZE);
+			val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER);
+			val = val | BIT(0);
+			rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER);
+		} else {
+			rv_writel(period_bytes, rtd->acp3x_base +
+					mmACP_BT_RX_INTR_WATERMARK_SIZE);
+			val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER);
+			val = val | BIT(0);
+			rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER);
+		}
+		rv_writel(1, rtd->acp3x_base + mmACP_BTTDM_IER);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER);
+			val = val & ~BIT(0);
+			rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER);
+		} else {
+			val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER);
+			val = val & ~BIT(0);
+			rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER);
+		}
+		rv_writel(0, rtd->acp3x_base + mmACP_BTTDM_IER);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static struct snd_soc_dai_ops acp3x_i2s_dai_ops = {
+	.hw_params = acp3x_i2s_hwparams,
+	.trigger   = acp3x_i2s_trigger,
+	.set_fmt = acp3x_i2s_set_fmt,
+	.set_tdm_slot = acp3x_i2s_set_tdm_slot,
+};
+
+static const struct snd_soc_component_driver acp3x_dai_component = {
+	.name           = "acp3x-i2s",
+};
+
+static struct snd_soc_dai_driver acp3x_i2s_dai = {
+	.playback = {
+		.rates = SNDRV_PCM_RATE_8000_96000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+			SNDRV_PCM_FMTBIT_U8 |
+			SNDRV_PCM_FMTBIT_S24_LE |
+			SNDRV_PCM_FMTBIT_S32_LE,
+		.channels_min = 2,
+		.channels_max = 8,
+
+		.rate_min = 8000,
+		.rate_max = 96000,
+	},
+	.capture = {
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+			SNDRV_PCM_FMTBIT_U8 |
+			SNDRV_PCM_FMTBIT_S24_LE |
+			SNDRV_PCM_FMTBIT_S32_LE,
+		.channels_min = 2,
+		.channels_max = 2,
+		.rate_min = 8000,
+		.rate_max = 48000,
+	},
+	.ops = &acp3x_i2s_dai_ops,
+};
+
+
+static int acp3x_dai_probe(struct platform_device *pdev)
+{
+	int status;
+	struct resource *res;
+	struct i2s_dev_data *adata;
+
+	adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data),
+			GFP_KERNEL);
+	if (!adata)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
+		goto err;
+	}
+
+	adata->acp3x_base = devm_ioremap(&pdev->dev, res->start,
+			resource_size(res));
+	if (IS_ERR(adata->acp3x_base))
+		return PTR_ERR(adata->acp3x_base);
+
+	adata->i2s_irq = res->start;
+	dev_set_drvdata(&pdev->dev, adata);
+	status = devm_snd_soc_register_component(&pdev->dev,
+			&acp3x_dai_component,
+			&acp3x_i2s_dai, 1);
+	if (status) {
+		dev_err(&pdev->dev, "Fail to register acp i2s dai\n");
+		goto dev_err;
+	}
+	pm_runtime_set_autosuspend_delay(&pdev->dev, 10000);
+	pm_runtime_use_autosuspend(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+	return 0;
+err:
+	kfree(adata);
+	return -ENOMEM;
+dev_err:
+	kfree(adata->acp3x_base);
+	kfree(adata);
+	kfree(res);
+	return -ENODEV;
+}
+
+static int acp3x_dai_remove(struct platform_device *pdev)
+{
+	pm_runtime_disable(&pdev->dev);
+	return 0;
+}
+static struct platform_driver acp3x_dai_driver = {
+	.probe = acp3x_dai_probe,
+	.remove = acp3x_dai_remove,
+	.driver = {
+		.name = "acp3x_i2s_playcap",
+	},
+};
+
+module_platform_driver(acp3x_dai_driver);
+
+MODULE_AUTHOR("Vishnuvardhanrao.Ravulapati@amd.com");
+MODULE_DESCRIPTION("AMD ACP 3.x PCM Driver");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
index 60709e3..8db2812 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -18,24 +18,6 @@ 
 
 #define DRV_NAME "acp3x-i2s-audio"
 
-struct i2s_dev_data {
-	bool tdm_mode;
-	unsigned int i2s_irq;
-	u32 tdm_fmt;
-	void __iomem *acp3x_base;
-	struct snd_pcm_substream *play_stream;
-	struct snd_pcm_substream *capture_stream;
-};
-
-struct i2s_stream_instance {
-	u16 num_pages;
-	u16 channels;
-	u32 xfer_resolution;
-	u64 bytescount;
-	dma_addr_t dma_addr;
-	void __iomem *acp3x_base;
-};
-
 static const struct snd_pcm_hardware acp3x_pcm_hardware_playback = {
 	.info = SNDRV_PCM_INFO_INTERLEAVED |
 		SNDRV_PCM_INFO_BLOCK_TRANSFER |
@@ -280,6 +262,9 @@  static int acp3x_dma_open(struct snd_soc_component *component,
 {
 	int ret = 0;
 	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct snd_soc_pcm_runtime *prtd = substream->private_data;
+
+	component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
 	struct i2s_dev_data *adata = dev_get_drvdata(component->dev);
 	struct i2s_stream_instance *i2s_data = kzalloc(sizeof(struct i2s_stream_instance),
 						       GFP_KERNEL);
@@ -312,23 +297,6 @@  static int acp3x_dma_open(struct snd_soc_component *component,
 	return 0;
 }
 
-static u64 acp_get_byte_count(struct i2s_stream_instance *rtd, int direction)
-{
-	u64 byte_count;
-
-	if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
-		byte_count = rv_readl(rtd->acp3x_base +
-				      mmACP_BT_TX_LINEARPOSITIONCNTR_HIGH);
-		byte_count |= rv_readl(rtd->acp3x_base +
-				       mmACP_BT_TX_LINEARPOSITIONCNTR_LOW);
-	} else {
-		byte_count = rv_readl(rtd->acp3x_base +
-				      mmACP_BT_RX_LINEARPOSITIONCNTR_HIGH);
-		byte_count |= rv_readl(rtd->acp3x_base +
-				       mmACP_BT_RX_LINEARPOSITIONCNTR_LOW);
-	}
-	return byte_count;
-}
 
 static int acp3x_dma_hw_params(struct snd_soc_component *component,
 			       struct snd_pcm_substream *substream,
@@ -380,6 +348,7 @@  static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_soc_component *component,
 static int acp3x_dma_new(struct snd_soc_component *component,
 			 struct snd_soc_pcm_runtime *rtd)
 {
+	component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
 	struct device *parent = component->dev->parent;
 	snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
 					      parent, MIN_BUFFER, MAX_BUFFER);
@@ -402,7 +371,9 @@  static int acp3x_dma_mmap(struct snd_soc_component *component,
 static int acp3x_dma_close(struct snd_soc_component *component,
 			   struct snd_pcm_substream *substream)
 {
+	struct snd_soc_pcm_runtime *prtd = substream->private_data;
 	struct i2s_stream_instance *rtd = substream->runtime->private_data;
+	component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
 	struct i2s_dev_data *adata = dev_get_drvdata(component->dev);
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
@@ -419,182 +390,6 @@  static int acp3x_dma_close(struct snd_soc_component *component,
 	return 0;
 }
 
-static int acp3x_dai_i2s_set_fmt(struct snd_soc_dai *cpu_dai, unsigned int fmt)
-{
-
-	struct i2s_dev_data *adata = snd_soc_dai_get_drvdata(cpu_dai);
-
-	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
-	case SND_SOC_DAIFMT_I2S:
-		adata->tdm_mode = false;
-		break;
-	case SND_SOC_DAIFMT_DSP_A:
-		adata->tdm_mode = true;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int acp3x_dai_set_tdm_slot(struct snd_soc_dai *cpu_dai, u32 tx_mask,
-				  u32 rx_mask, int slots, int slot_width)
-{
-	u32 val = 0;
-	u16 slot_len;
-
-	struct i2s_dev_data *adata = snd_soc_dai_get_drvdata(cpu_dai);
-
-	switch (slot_width) {
-	case SLOT_WIDTH_8:
-		slot_len = 8;
-		break;
-	case SLOT_WIDTH_16:
-		slot_len = 16;
-		break;
-	case SLOT_WIDTH_24:
-		slot_len = 24;
-		break;
-	case SLOT_WIDTH_32:
-		slot_len = 0;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	val = rv_readl(adata->acp3x_base + mmACP_BTTDM_ITER);
-	rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_ITER);
-	val = rv_readl(adata->acp3x_base + mmACP_BTTDM_IRER);
-	rv_writel((val | 0x2), adata->acp3x_base + mmACP_BTTDM_IRER);
-
-	val = (FRM_LEN | (slots << 15) | (slot_len << 18));
-	rv_writel(val, adata->acp3x_base + mmACP_BTTDM_TXFRMT);
-	rv_writel(val, adata->acp3x_base + mmACP_BTTDM_RXFRMT);
-
-	adata->tdm_fmt = val;
-	return 0;
-}
-
-static int acp3x_dai_i2s_hwparams(struct snd_pcm_substream *substream,
-				  struct snd_pcm_hw_params *params,
-				  struct snd_soc_dai *dai)
-{
-	u32 val = 0;
-	struct i2s_stream_instance *rtd = substream->runtime->private_data;
-
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_U8:
-	case SNDRV_PCM_FORMAT_S8:
-		rtd->xfer_resolution = 0x0;
-		break;
-	case SNDRV_PCM_FORMAT_S16_LE:
-		rtd->xfer_resolution = 0x02;
-		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
-		rtd->xfer_resolution = 0x04;
-		break;
-	case SNDRV_PCM_FORMAT_S32_LE:
-		rtd->xfer_resolution = 0x05;
-		break;
-	default:
-		return -EINVAL;
-	}
-	val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER);
-	val = val | (rtd->xfer_resolution  << 3);
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER);
-	else
-		rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER);
-
-	return 0;
-}
-
-static int acp3x_dai_i2s_trigger(struct snd_pcm_substream *substream,
-				 int cmd, struct snd_soc_dai *dai)
-{
-	int ret = 0;
-	struct i2s_stream_instance *rtd = substream->runtime->private_data;
-	u32 val, period_bytes;
-
-	period_bytes = frames_to_bytes(substream->runtime,
-				       substream->runtime->period_size);
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-	case SNDRV_PCM_TRIGGER_RESUME:
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		rtd->bytescount = acp_get_byte_count(rtd, substream->stream);
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-			rv_writel(period_bytes, rtd->acp3x_base +
-				  mmACP_BT_TX_INTR_WATERMARK_SIZE);
-			val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER);
-			val = val | BIT(0);
-			rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER);
-		} else {
-			rv_writel(period_bytes, rtd->acp3x_base +
-				  mmACP_BT_RX_INTR_WATERMARK_SIZE);
-			val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER);
-			val = val | BIT(0);
-			rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER);
-		}
-		rv_writel(1, rtd->acp3x_base + mmACP_BTTDM_IER);
-		break;
-	case SNDRV_PCM_TRIGGER_STOP:
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-			val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_ITER);
-			val = val & ~BIT(0);
-			rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_ITER);
-		} else {
-			val = rv_readl(rtd->acp3x_base + mmACP_BTTDM_IRER);
-			val = val & ~BIT(0);
-			rv_writel(val, rtd->acp3x_base + mmACP_BTTDM_IRER);
-		}
-		rv_writel(0, rtd->acp3x_base + mmACP_BTTDM_IER);
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-
-	return ret;
-}
-
-static struct snd_soc_dai_ops acp3x_dai_i2s_ops = {
-	.hw_params = acp3x_dai_i2s_hwparams,
-	.trigger   = acp3x_dai_i2s_trigger,
-	.set_fmt = acp3x_dai_i2s_set_fmt,
-	.set_tdm_slot = acp3x_dai_set_tdm_slot,
-};
-
-static struct snd_soc_dai_driver acp3x_i2s_dai_driver = {
-	.playback = {
-		.rates = SNDRV_PCM_RATE_8000_96000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
-					SNDRV_PCM_FMTBIT_U8 |
-					SNDRV_PCM_FMTBIT_S24_LE |
-					SNDRV_PCM_FMTBIT_S32_LE,
-		.channels_min = 2,
-		.channels_max = 8,
-
-		.rate_min = 8000,
-		.rate_max = 96000,
-	},
-	.capture = {
-		.rates = SNDRV_PCM_RATE_8000_48000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
-					SNDRV_PCM_FMTBIT_U8 |
-					SNDRV_PCM_FMTBIT_S24_LE |
-					SNDRV_PCM_FMTBIT_S32_LE,
-		.channels_min = 2,
-		.channels_max = 2,
-		.rate_min = 8000,
-		.rate_max = 48000,
-	},
-	.ops = &acp3x_dai_i2s_ops,
-};
-
 static const struct snd_soc_component_driver acp3x_i2s_component = {
 	.name		= DRV_NAME,
 	.open		= acp3x_dma_open,
@@ -628,31 +423,31 @@  static int acp3x_audio_probe(struct platform_device *pdev)
 
 	adata = devm_kzalloc(&pdev->dev, sizeof(*adata), GFP_KERNEL);
 	if (!adata)
-		return -ENOMEM;
+		goto err;
 
 	adata->acp3x_base = devm_ioremap(&pdev->dev, res->start,
 					 resource_size(res));
+	if (!adata->acp3x_base)
+		goto base_err;
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
-		return -ENODEV;
+		goto io_irq;
 	}
 
 	adata->i2s_irq = res->start;
-	adata->play_stream = NULL;
-	adata->capture_stream = NULL;
 
 	dev_set_drvdata(&pdev->dev, adata);
 	/* Initialize ACP */
 	status = acp3x_init(adata->acp3x_base);
 	if (status)
-		return -ENODEV;
+		goto io_irq;
 	status = devm_snd_soc_register_component(&pdev->dev,
 						 &acp3x_i2s_component,
-						 &acp3x_i2s_dai_driver, 1);
+						 NULL, 0);
 	if (status) {
-		dev_err(&pdev->dev, "Fail to register acp i2s dai\n");
+		dev_err(&pdev->dev, "Fail to register acp i2s component\n");
 		goto dev_err;
 	}
 	status = devm_request_irq(&pdev->dev, adata->i2s_irq, i2s_irq_handler,
@@ -666,7 +461,24 @@  static int acp3x_audio_probe(struct platform_device *pdev)
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 	return 0;
+
+err:
+	kfree(res);
+	return -ENOMEM;
+base_err:
+	kfree(res);
+	kfree(adata);
+	return -ENOMEM;
+io_irq:
+	kfree(res);
+	kfree(adata->acp3x_base);
+	kfree(adata);
+	return -ENOMEM;
+
 dev_err:
+	kfree(res);
+	kfree(adata->acp3x_base);
+	kfree(adata);
 	status = acp3x_deinit(adata->acp3x_base);
 	if (status)
 		dev_err(&pdev->dev, "ACP de-init failed\n");
@@ -774,13 +586,14 @@  static struct platform_driver acp3x_dma_driver = {
 	.probe = acp3x_audio_probe,
 	.remove = acp3x_audio_remove,
 	.driver = {
-		.name = "acp3x_rv_i2s",
+		.name = "acp3x_rv_i2s_dma",
 		.pm = &acp3x_pm_ops,
 	},
 };
 
 module_platform_driver(acp3x_dma_driver);
 
+MODULE_AUTHOR("Vishnuvardhanrao.Ravulapati@amd.com");
 MODULE_AUTHOR("Maruthi.Bayyavarapu@amd.com");
 MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
 MODULE_DESCRIPTION("AMD ACP 3.x PCM Driver");
diff --git a/sound/soc/amd/raven/acp3x.h b/sound/soc/amd/raven/acp3x.h
index 2f15fe1..72c1a23 100644
--- a/sound/soc/amd/raven/acp3x.h
+++ b/sound/soc/amd/raven/acp3x.h
@@ -51,6 +51,29 @@ 
 #define SLOT_WIDTH_24 0x18
 #define SLOT_WIDTH_32 0x20
 
+struct acp3x_platform_info {
+	u16 play_i2s_instance;
+	u16 cap_i2s_instance;
+	u16 capture_channel;
+};
+
+struct i2s_dev_data {
+	bool tdm_mode;
+	unsigned int i2s_irq;
+	u32 tdm_fmt;
+	void __iomem *acp3x_base;
+	struct snd_pcm_substream *play_stream;
+	struct snd_pcm_substream *capture_stream;
+};
+
+struct i2s_stream_instance {
+	u16 num_pages;
+	u16 channels;
+	u32 xfer_resolution;
+	u64 bytescount;
+	dma_addr_t dma_addr;
+	void __iomem *acp3x_base;
+};
 
 static inline u32 rv_readl(void __iomem *base_addr)
 {
@@ -61,3 +84,22 @@  static inline void rv_writel(u32 val, void __iomem *base_addr)
 {
 	writel(val, base_addr - ACP3x_PHY_BASE_ADDRESS);
 }
+
+static inline u64 acp_get_byte_count(struct i2s_stream_instance *rtd,
+							int direction)
+{
+	u64 byte_count;
+
+	if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
+		byte_count = rv_readl(rtd->acp3x_base +
+				mmACP_BT_TX_LINEARPOSITIONCNTR_HIGH);
+		byte_count |= rv_readl(rtd->acp3x_base +
+				mmACP_BT_TX_LINEARPOSITIONCNTR_LOW);
+	} else {
+		byte_count = rv_readl(rtd->acp3x_base +
+				mmACP_BT_RX_LINEARPOSITIONCNTR_HIGH);
+		byte_count |= rv_readl(rtd->acp3x_base +
+				mmACP_BT_RX_LINEARPOSITIONCNTR_LOW);
+	}
+	return byte_count;
+}