[v8,2/6] ASoC: amd: Refactoring of DAI from DMA driver
diff mbox series

Message ID 1574155967-1315-3-git-send-email-Vishnuvardhanrao.Ravulapati@amd.com
State New
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Series
  • [v8,1/6] ASoC: amd:Create multiple I2S platform device endpoint
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Commit Message

Ravulapati Vishnu vardhan rao Nov. 19, 2019, 9:32 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     | 266 +++++++++++++++++++++++++++++++
 sound/soc/amd/raven/acp3x-pcm-dma.c | 305 +++++++-----------------------------
 sound/soc/amd/raven/acp3x.h         |  42 +++++
 4 files changed, 369 insertions(+), 246 deletions(-)
 create mode 100644 sound/soc/amd/raven/acp3x-i2s.c

Comments

Pierre-Louis Bossart Nov. 19, 2019, 1:53 p.m. UTC | #1
> +static int acp3x_dai_probe(struct platform_device *pdev)
> +{
> +	struct resource *res;
> +	struct i2s_dev_data *adata;
> +	int status;
> +
> +	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");
> +		return -ENOMEM;
> +	}
> +
> +	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");
> +		return -ENODEV;
> +	}
> +	pm_runtime_set_autosuspend_delay(&pdev->dev, 5000);
> +	pm_runtime_use_autosuspend(&pdev->dev);
> +	pm_runtime_enable(&pdev->dev);

question: here you want to use pm_runtime for this platform device...

> +	return 0;
> +}
> +
> +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",

... but here there is no .pm structure and I don't see any 
suspend/resume routines for this driver...

> +	},
> +};

> @@ -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,
>   	},

... but for this other platform_driver you do have a .pm structure and 
suspend-resume implementations.

Wondering if this is a miss or a feature?
vishnu Nov. 20, 2019, 7:21 a.m. UTC | #2
On 19/11/19 7:23 PM, Pierre-Louis Bossart wrote:
> 
> 
>> +static int acp3x_dai_probe(struct platform_device *pdev)
>> +{
>> +    struct resource *res;
>> +    struct i2s_dev_data *adata;
>> +    int status;
>> +
>> +    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");
>> +        return -ENOMEM;
>> +    }
>> +
>> +    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");
>> +        return -ENODEV;
>> +    }
>> +    pm_runtime_set_autosuspend_delay(&pdev->dev, 5000);
>> +    pm_runtime_use_autosuspend(&pdev->dev);
>> +    pm_runtime_enable(&pdev->dev);
> 
> question: here you want to use pm_runtime for this platform device...
> 
>> +    return 0;
>> +}
>> +
>> +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",
> 
> ... but here there is no .pm structure and I don't see any 
> suspend/resume routines for this driver...
> 
>> +    },
>> +};
> 
>> @@ -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,
>>       },
> 
> ... but for this other platform_driver you do have a .pm structure and 
> suspend-resume implementations.
> 
> Wondering if this is a miss or a feature?
> 

As per our design, ACP IP specific changes like ACP power on/off will be 
handled in ACP pci driver(parent device for DMA device and I2S 
controller(nothing but CPU DAI))

Where as In DMA driver during runtime suspend/resume interrupts will be 
disabled and enabled.

But in DAI driver there is nothing to be done in suspend and resume just 
returning zero so we have not added PM suspend/resume here in DAI.

So is it expected to add the suspend resumes with returning zero.Or if 
pm runtime is not needed in CPU DAI shall we remove the existing PM 
related calls in DAI.

Please suggest us.


Thanks,
Vishnu
Pierre-Louis Bossart Nov. 20, 2019, 2:48 p.m. UTC | #3
>>> +    pm_runtime_set_autosuspend_delay(&pdev->dev, 5000);
>>> +    pm_runtime_use_autosuspend(&pdev->dev);
>>> +    pm_runtime_enable(&pdev->dev);
>>
>> question: here you want to use pm_runtime for this platform device...
>>
>>> +    return 0;
>>> +}
>>> +
>>> +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",
>>
>> ... but here there is no .pm structure and I don't see any 
>> suspend/resume routines for this driver...
>>
>>> +    },
>>> +};
>>
>>> @@ -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,
>>>       },
>>
>> ... but for this other platform_driver you do have a .pm structure and 
>> suspend-resume implementations.
>>
>> Wondering if this is a miss or a feature?
>>
> 
> As per our design, ACP IP specific changes like ACP power on/off will be 
> handled in ACP pci driver(parent device for DMA device and I2S 
> controller(nothing but CPU DAI))
> 
> Where as In DMA driver during runtime suspend/resume interrupts will be 
> disabled and enabled.
> 
> But in DAI driver there is nothing to be done in suspend and resume just 
> returning zero so we have not added PM suspend/resume here in DAI.
> 
> So is it expected to add the suspend resumes with returning zero.Or if 
> pm runtime is not needed in CPU DAI shall we remove the existing PM 
> related calls in DAI.
> 
> Please suggest us.

I am far from a pm_runtime expert but I'd remove the calls to

+    pm_runtime_set_autosuspend_delay(&pdev->dev, 5000);
+    pm_runtime_use_autosuspend(&pdev->dev);
+    pm_runtime_enable(&pdev->dev);

if you platform device does not provide any suspend/resume functions and 
the parent takes care of everything?

IIRC the status for the platform device would be 'unsupported' but that 
shouldn't prevent the parent from suspending/resuming.

A second opinion would be desirable here...

Patch
diff mbox series

diff --git a/sound/soc/amd/raven/Makefile b/sound/soc/amd/raven/Makefile
index 108d1ac..62c22b6 100644
--- a/sound/soc/amd/raven/Makefile
+++ b/sound/soc/amd/raven/Makefile
@@ -2,5 +2,7 @@ 
 # Raven Ridge platform Support
 snd-pci-acp3x-objs	:= pci-acp3x.o
 snd-acp3x-pcm-dma-objs	:= acp3x-pcm-dma.o
+snd-acp3x-i2s-objs	:= acp3x-i2s.o
 obj-$(CONFIG_SND_SOC_AMD_ACP3x)	 += snd-pci-acp3x.o
 obj-$(CONFIG_SND_SOC_AMD_ACP3x)	 += snd-acp3x-pcm-dma.o
+obj-$(CONFIG_SND_SOC_AMD_ACP3x)	 += snd-acp3x-i2s.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..390d07a
--- /dev/null
+++ b/sound/soc/amd/raven/acp3x-i2s.c
@@ -0,0 +1,266 @@ 
+// 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;
+
+	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)
+{
+	struct i2s_dev_data *adata;
+	u32 val;
+	u16 slot_len;
+
+	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)
+{
+	struct i2s_stream_instance *rtd;
+	u32 val;
+	u32 reg_val;
+
+	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)
+		reg_val = mmACP_BTTDM_ITER;
+	else
+		reg_val = mmACP_BTTDM_IRER;
+
+	val = rv_readl(rtd->acp3x_base + reg_val);
+	val = val | (rtd->xfer_resolution  << 3);
+	rv_writel(val, rtd->acp3x_base + reg_val);
+	return 0;
+}
+
+static int acp3x_i2s_trigger(struct snd_pcm_substream *substream,
+		int cmd, struct snd_soc_dai *dai)
+{
+	struct i2s_stream_instance *rtd;
+	u32 val, period_bytes;
+	int ret, reg_val;
+
+	rtd = substream->runtime->private_data;
+	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) {
+			reg_val = mmACP_BTTDM_ITER;
+			rv_writel(period_bytes, rtd->acp3x_base +
+					mmACP_BT_TX_INTR_WATERMARK_SIZE);
+		} else {
+			reg_val = mmACP_BTTDM_IRER;
+			rv_writel(period_bytes, rtd->acp3x_base +
+					mmACP_BT_RX_INTR_WATERMARK_SIZE);
+		}
+		val = rv_readl(rtd->acp3x_base + reg_val);
+		val = val | BIT(0);
+		rv_writel(val, rtd->acp3x_base + reg_val);
+		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)
+			reg_val = mmACP_BTTDM_ITER;
+		else
+			reg_val = mmACP_BTTDM_IRER;
+
+		val = rv_readl(rtd->acp3x_base + reg_val);
+		val = val & ~BIT(0);
+		rv_writel(val, rtd->acp3x_base + reg_val);
+		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)
+{
+	struct resource *res;
+	struct i2s_dev_data *adata;
+	int status;
+
+	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");
+		return -ENOMEM;
+	}
+
+	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");
+		return -ENODEV;
+	}
+	pm_runtime_set_autosuspend_delay(&pdev->dev, 5000);
+	pm_runtime_use_autosuspend(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+	return 0;
+}
+
+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..0202737 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 |
@@ -178,10 +160,11 @@  static int acp3x_deinit(void __iomem *acp3x_base)
 
 static irqreturn_t i2s_irq_handler(int irq, void *dev_id)
 {
+	struct i2s_dev_data *rv_i2s_data;
 	u16 play_flag, cap_flag;
 	u32 val;
-	struct i2s_dev_data *rv_i2s_data = dev_id;
 
+	rv_i2s_data = dev_id;
 	if (!rv_i2s_data)
 		return IRQ_NONE;
 
@@ -278,11 +261,18 @@  static void config_acp3x_dma(struct i2s_stream_instance *rtd, int direction)
 static int acp3x_dma_open(struct snd_soc_component *component,
 			  struct snd_pcm_substream *substream)
 {
-	int ret = 0;
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct i2s_dev_data *adata = dev_get_drvdata(component->dev);
-	struct i2s_stream_instance *i2s_data = kzalloc(sizeof(struct i2s_stream_instance),
-						       GFP_KERNEL);
+	struct snd_pcm_runtime *runtime;
+	struct snd_soc_pcm_runtime *prtd;
+	struct i2s_dev_data *adata;
+	struct i2s_stream_instance *i2s_data;
+	int ret;
+
+	runtime = substream->runtime;
+	prtd = substream->private_data;
+	component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
+	adata = dev_get_drvdata(component->dev);
+	i2s_data = kzalloc(sizeof(struct i2s_stream_instance),
+						GFP_KERNEL);
 	if (!i2s_data)
 		return -EINVAL;
 
@@ -312,33 +302,18 @@  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,
 			       struct snd_pcm_hw_params *params)
 {
+	struct snd_pcm_runtime *runtime;
+	struct i2s_stream_instance *rtd;
 	int status;
 	u64 size;
-	struct snd_pcm_runtime *runtime = substream->runtime;
-	struct i2s_stream_instance *rtd = runtime->private_data;
 
+	runtime = substream->runtime;
+	rtd = substream->private_data;
 	if (!rtd)
 		return -EINVAL;
 
@@ -362,12 +337,12 @@  static int acp3x_dma_hw_params(struct snd_soc_component *component,
 static snd_pcm_uframes_t acp3x_dma_pointer(struct snd_soc_component *component,
 					   struct snd_pcm_substream *substream)
 {
-	u32 pos = 0;
-	u32 buffersize = 0;
-	u64 bytescount = 0;
-	struct i2s_stream_instance *rtd =
-		substream->runtime->private_data;
+	struct i2s_stream_instance *rtd;
+	u32 pos;
+	u32 buffersize;
+	u64 bytescount;
 
+	rtd = substream->runtime->private_data;
 	buffersize = frames_to_bytes(substream->runtime,
 				     substream->runtime->buffer_size);
 	bytescount = acp_get_byte_count(rtd, substream->stream);
@@ -380,7 +355,10 @@  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)
 {
-	struct device *parent = component->dev->parent;
+	struct device *parent;
+
+	component = snd_soc_rtdcom_lookup(rtd, DRV_NAME);
+	parent = component->dev->parent;
 	snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
 					      parent, MIN_BUFFER, MAX_BUFFER);
 	return 0;
@@ -402,8 +380,12 @@  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 i2s_stream_instance *rtd = substream->runtime->private_data;
-	struct i2s_dev_data *adata = dev_get_drvdata(component->dev);
+	struct snd_soc_pcm_runtime *prtd;
+	struct i2s_dev_data *adata;
+
+	prtd = substream->private_data;
+	component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
+	adata = dev_get_drvdata(component->dev);
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 		adata->play_stream = NULL;
@@ -415,186 +397,9 @@  static int acp3x_dma_close(struct snd_soc_component *component,
 	 */
 	if (!adata->play_stream && !adata->capture_stream)
 		rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB);
-	kfree(rtd);
-	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,
@@ -609,10 +414,10 @@  static const struct snd_soc_component_driver acp3x_i2s_component = {
 
 static int acp3x_audio_probe(struct platform_device *pdev)
 {
-	int status;
 	struct resource *res;
 	struct i2s_dev_data *adata;
 	unsigned int irqflags;
+	int status, ret;
 
 	if (!pdev->dev.platform_data) {
 		dev_err(&pdev->dev, "platform_data not retrieved\n");
@@ -622,7 +427,7 @@  static int acp3x_audio_probe(struct platform_device *pdev)
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
-		dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
+		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
 		return -ENODEV;
 	}
 
@@ -632,60 +437,64 @@  static int acp3x_audio_probe(struct platform_device *pdev)
 
 	adata->acp3x_base = devm_ioremap(&pdev->dev, res->start,
 					 resource_size(res));
+	if (!adata->acp3x_base)
+		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
-		return -ENODEV;
+		return -ENOMEM;
 	}
 
 	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;
+
 	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");
+		ret = -ENODEV;
 		goto dev_err;
 	}
 	status = devm_request_irq(&pdev->dev, adata->i2s_irq, i2s_irq_handler,
 				  irqflags, "ACP3x_I2S_IRQ", adata);
 	if (status) {
 		dev_err(&pdev->dev, "ACP3x I2S IRQ request failed\n");
+		ret = -ENODEV;
 		goto dev_err;
 	}
 
-	pm_runtime_set_autosuspend_delay(&pdev->dev, 10000);
+	pm_runtime_set_autosuspend_delay(&pdev->dev, 5000);
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 	return 0;
+
 dev_err:
 	status = acp3x_deinit(adata->acp3x_base);
 	if (status)
 		dev_err(&pdev->dev, "ACP de-init failed\n");
 	else
-		dev_info(&pdev->dev, "ACP de-initialized\n");
-	/*ignore device status and return driver probe error*/
-	return -ENODEV;
+		dev_dbg(&pdev->dev, "ACP de-initialized\n");
+	return ret;
 }
 
 static int acp3x_audio_remove(struct platform_device *pdev)
 {
+	struct i2s_dev_data *adata;
 	int ret;
-	struct i2s_dev_data *adata = dev_get_drvdata(&pdev->dev);
 
+	adata = dev_get_drvdata(&pdev->dev);
 	ret = acp3x_deinit(adata->acp3x_base);
 	if (ret)
 		dev_err(&pdev->dev, "ACP de-init failed\n");
 	else
-		dev_info(&pdev->dev, "ACP de-initialized\n");
+		dev_dbg(&pdev->dev, "ACP de-initialized\n");
 
 	pm_runtime_disable(&pdev->dev);
 	return 0;
@@ -693,10 +502,11 @@  static int acp3x_audio_remove(struct platform_device *pdev)
 
 static int acp3x_resume(struct device *dev)
 {
+	struct i2s_dev_data *adata;
 	int status;
 	u32 val;
-	struct i2s_dev_data *adata = dev_get_drvdata(dev);
 
+	adata = dev_get_drvdata(dev);
 	status = acp3x_init(adata->acp3x_base);
 	if (status)
 		return -ENODEV;
@@ -738,14 +548,15 @@  static int acp3x_resume(struct device *dev)
 
 static int acp3x_pcm_runtime_suspend(struct device *dev)
 {
+	struct i2s_dev_data *adata;
 	int status;
-	struct i2s_dev_data *adata = dev_get_drvdata(dev);
+	adata = dev_get_drvdata(dev);
 
 	status = acp3x_deinit(adata->acp3x_base);
 	if (status)
 		dev_err(dev, "ACP de-init failed\n");
 	else
-		dev_info(dev, "ACP de-initialized\n");
+		dev_dbg(dev, "ACP de-initialized\n");
 
 	rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB);
 
@@ -754,8 +565,9 @@  static int acp3x_pcm_runtime_suspend(struct device *dev)
 
 static int acp3x_pcm_runtime_resume(struct device *dev)
 {
+	struct i2s_dev_data *adata;
 	int status;
-	struct i2s_dev_data *adata = dev_get_drvdata(dev);
+	adata = dev_get_drvdata(dev);
 
 	status = acp3x_init(adata->acp3x_base);
 	if (status)
@@ -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;
+}