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@xxxxxxx>
Reviewed-by: Vijendar Mukunda <vijendar.mukunda@xxxxxxx>
---
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@xxxxxxx");
+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@xxxxxxx");
MODULE_AUTHOR("Maruthi.Bayyavarapu@xxxxxxx");
MODULE_AUTHOR("Vijendar.Mukunda@xxxxxxx");
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
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