[alsa-devel] [PATCH 2/5] ASoC: amd: Refactoring of DAI from DMA driver

27 Sep 2019

DMA driver should have only dma ops.Removed all DAI related.
Refactoring the code added new file contianing only DAI ops.
Signed-off-by: Ravulapati Vishnu vardhan rao Vishnuvardhanrao.Ravulapati@amd.com
Reviewed-by: Vijendar Mukunda vijendar.mukunda@amd.com
---
 sound/soc/amd/raven/Makefile        |   2 +
 sound/soc/amd/raven/acp3x-i2s.c     | 289 ++++++++++++++++++++++++++++++++++++
 sound/soc/amd/raven/acp3x-pcm-dma.c | 213 ++------------------------
 sound/soc/amd/raven/acp3x.h         |  23 +++
 4 files changed, 323 insertions(+), 204 deletions(-)
 create mode 100644 sound/soc/amd/raven/acp3x-i2s.c

diff --git a/sound/soc/amd/raven/Makefile b/sound/soc/amd/raven/Makefile
index 108d1ac..f079703 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..7420928
--- /dev/null
+++ b/sound/soc/amd/raven/acp3x-i2s.c
@@ -0,0 +1,289 @@
+// 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 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_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 = 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_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_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;
+
+	if (!pdev->dev.platform_data) {
+		dev_err(&pdev->dev, "platform_data not retrieved\n");
+		return -ENODEV;
+	}
+
+	adata = devm_kzalloc(&pdev->dev, sizeof(struct i2s_dev_data),
+			GFP_KERNEL);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
+		return -ENODEV;
+	}
+
+	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;
+	adata->play_stream = NULL;
+	adata->capture_stream = NULL;
+
+	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;
+dev_err:
+	/*ignore device status and return driver probe error*/
+	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 bc4dfaf..67160b5 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 |
@@ -432,183 +414,6 @@ static struct snd_pcm_ops acp3x_dma_ops = {
    .mmap = acp3x_dma_mmap,
 };
-
-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,
    .ops		= &acp3x_dma_ops,
@@ -627,17 +432,16 @@ static int acp3x_audio_probe(struct platform_device *pdev)
    	return -ENODEV;
    }
    irqflags = *((unsigned int *)(pdev->dev.platform_data));
+	adata = devm_kzalloc(&pdev->dev, sizeof(*adata), GFP_KERNEL);
+	if (!adata)
+		return -ENOMEM;
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
    if (!res) {
-		dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
-			return -ENODEV;
+		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
+		return -ENODEV;
    }
-	adata = devm_kzalloc(&pdev->dev, sizeof(*adata), GFP_KERNEL);
-	if (!adata)
-		return -ENOMEM;
-
    adata->acp3x_base = devm_ioremap(&pdev->dev, res->start,
    				 resource_size(res));
@@ -658,9 +462,9 @@ static int acp3x_audio_probe(struct platform_device *pdev)
    	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");
    	goto dev_err;
    }
    status = devm_request_irq(&pdev->dev, adata->i2s_irq, i2s_irq_handler,
@@ -782,13 +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 3a27fc8..6bc38a4 100644
--- a/sound/soc/amd/raven/acp3x.h
+++ b/sound/soc/amd/raven/acp3x.h
@@ -54,6 +54,29 @@
 #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)
 {
-- 
2.7.4


    