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Diffstat (limited to 'sound/soc/jz4740/jz4740-i2s.c')
-rw-r--r--sound/soc/jz4740/jz4740-i2s.c135
1 files changed, 35 insertions, 100 deletions
diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c
index 4c849a49c72..8f220009e0f 100644
--- a/sound/soc/jz4740/jz4740-i2s.c
+++ b/sound/soc/jz4740/jz4740-i2s.c
@@ -29,9 +29,11 @@
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>
+#include <sound/dmaengine_pcm.h>
+
+#include <asm/mach-jz4740/dma.h>
#include "jz4740-i2s.h"
-#include "jz4740-pcm.h"
#define JZ_REG_AIC_CONF 0x00
#define JZ_REG_AIC_CTRL 0x04
@@ -89,8 +91,8 @@ struct jz4740_i2s {
struct clk *clk_aic;
struct clk *clk_i2s;
- struct jz4740_pcm_config pcm_config_playback;
- struct jz4740_pcm_config pcm_config_capture;
+ struct snd_dmaengine_dai_dma_data playback_dma_data;
+ struct snd_dmaengine_dai_dma_data capture_dma_data;
};
static inline uint32_t jz4740_i2s_read(const struct jz4740_i2s *i2s,
@@ -233,8 +235,6 @@ static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
struct jz4740_i2s *i2s = snd_soc_dai_get_drvdata(dai);
- enum jz4740_dma_width dma_width;
- struct jz4740_pcm_config *pcm_config;
unsigned int sample_size;
uint32_t ctrl;
@@ -243,11 +243,9 @@ static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream,
switch (params_format(params)) {
case SNDRV_PCM_FORMAT_S8:
sample_size = 0;
- dma_width = JZ4740_DMA_WIDTH_8BIT;
break;
case SNDRV_PCM_FORMAT_S16:
sample_size = 1;
- dma_width = JZ4740_DMA_WIDTH_16BIT;
break;
default:
return -EINVAL;
@@ -260,22 +258,13 @@ static int jz4740_i2s_hw_params(struct snd_pcm_substream *substream,
ctrl |= JZ_AIC_CTRL_MONO_TO_STEREO;
else
ctrl &= ~JZ_AIC_CTRL_MONO_TO_STEREO;
-
- pcm_config = &i2s->pcm_config_playback;
- pcm_config->dma_config.dst_width = dma_width;
-
} else {
ctrl &= ~JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_MASK;
ctrl |= sample_size << JZ_AIC_CTRL_INPUT_SAMPLE_SIZE_OFFSET;
-
- pcm_config = &i2s->pcm_config_capture;
- pcm_config->dma_config.src_width = dma_width;
}
jz4740_i2s_write(i2s, JZ_REG_AIC_CTRL, ctrl);
- snd_soc_dai_set_dma_data(dai, substream, pcm_config);
-
return 0;
}
@@ -342,25 +331,19 @@ static int jz4740_i2s_resume(struct snd_soc_dai *dai)
static void jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s)
{
- struct jz4740_dma_config *dma_config;
+ struct snd_dmaengine_dai_dma_data *dma_data;
/* Playback */
- dma_config = &i2s->pcm_config_playback.dma_config;
- dma_config->src_width = JZ4740_DMA_WIDTH_32BIT;
- dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
- dma_config->request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT;
- dma_config->flags = JZ4740_DMA_SRC_AUTOINC;
- dma_config->mode = JZ4740_DMA_MODE_SINGLE;
- i2s->pcm_config_playback.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
+ dma_data = &i2s->playback_dma_data;
+ dma_data->maxburst = 16;
+ dma_data->slave_id = JZ4740_DMA_TYPE_AIC_TRANSMIT;
+ dma_data->addr = i2s->phys_base + JZ_REG_AIC_FIFO;
/* Capture */
- dma_config = &i2s->pcm_config_capture.dma_config;
- dma_config->dst_width = JZ4740_DMA_WIDTH_32BIT;
- dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
- dma_config->request_type = JZ4740_DMA_TYPE_AIC_RECEIVE;
- dma_config->flags = JZ4740_DMA_DST_AUTOINC;
- dma_config->mode = JZ4740_DMA_MODE_SINGLE;
- i2s->pcm_config_capture.fifo_addr = i2s->phys_base + JZ_REG_AIC_FIFO;
+ dma_data = &i2s->capture_dma_data;
+ dma_data->maxburst = 16;
+ dma_data->slave_id = JZ4740_DMA_TYPE_AIC_RECEIVE;
+ dma_data->addr = i2s->phys_base + JZ_REG_AIC_FIFO;
}
static int jz4740_i2s_dai_probe(struct snd_soc_dai *dai)
@@ -371,6 +354,8 @@ static int jz4740_i2s_dai_probe(struct snd_soc_dai *dai)
clk_prepare_enable(i2s->clk_aic);
jz4740_i2c_init_pcm_config(i2s);
+ snd_soc_dai_init_dma_data(dai, &i2s->playback_dma_data,
+ &i2s->capture_dma_data);
conf = (7 << JZ_AIC_CONF_FIFO_RX_THRESHOLD_OFFSET) |
(8 << JZ_AIC_CONF_FIFO_TX_THRESHOLD_OFFSET) |
@@ -432,91 +417,41 @@ static const struct snd_soc_component_driver jz4740_i2s_component = {
static int jz4740_i2s_dev_probe(struct platform_device *pdev)
{
struct jz4740_i2s *i2s;
+ struct resource *mem;
int ret;
- i2s = kzalloc(sizeof(*i2s), GFP_KERNEL);
-
+ i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL);
if (!i2s)
return -ENOMEM;
- i2s->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!i2s->mem) {
- ret = -ENOENT;
- goto err_free;
- }
-
- i2s->mem = request_mem_region(i2s->mem->start, resource_size(i2s->mem),
- pdev->name);
- if (!i2s->mem) {
- ret = -EBUSY;
- goto err_free;
- }
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ i2s->base = devm_ioremap_resource(&pdev->dev, mem);
+ if (IS_ERR(i2s->base))
+ return PTR_ERR(i2s->base);
- i2s->base = ioremap_nocache(i2s->mem->start, resource_size(i2s->mem));
- if (!i2s->base) {
- ret = -EBUSY;
- goto err_release_mem_region;
- }
+ i2s->phys_base = mem->start;
- i2s->phys_base = i2s->mem->start;
+ i2s->clk_aic = devm_clk_get(&pdev->dev, "aic");
+ if (IS_ERR(i2s->clk_aic))
+ return PTR_ERR(i2s->clk_aic);
- i2s->clk_aic = clk_get(&pdev->dev, "aic");
- if (IS_ERR(i2s->clk_aic)) {
- ret = PTR_ERR(i2s->clk_aic);
- goto err_iounmap;
- }
-
- i2s->clk_i2s = clk_get(&pdev->dev, "i2s");
- if (IS_ERR(i2s->clk_i2s)) {
- ret = PTR_ERR(i2s->clk_i2s);
- goto err_clk_put_aic;
- }
+ i2s->clk_i2s = devm_clk_get(&pdev->dev, "i2s");
+ if (IS_ERR(i2s->clk_i2s))
+ return PTR_ERR(i2s->clk_i2s);
platform_set_drvdata(pdev, i2s);
- ret = snd_soc_register_component(&pdev->dev, &jz4740_i2s_component,
- &jz4740_i2s_dai, 1);
- if (ret) {
- dev_err(&pdev->dev, "Failed to register DAI\n");
- goto err_clk_put_i2s;
- }
-
- return 0;
-
-err_clk_put_i2s:
- clk_put(i2s->clk_i2s);
-err_clk_put_aic:
- clk_put(i2s->clk_aic);
-err_iounmap:
- iounmap(i2s->base);
-err_release_mem_region:
- release_mem_region(i2s->mem->start, resource_size(i2s->mem));
-err_free:
- kfree(i2s);
-
- return ret;
-}
+ ret = devm_snd_soc_register_component(&pdev->dev,
+ &jz4740_i2s_component, &jz4740_i2s_dai, 1);
+ if (ret)
+ return ret;
-static int jz4740_i2s_dev_remove(struct platform_device *pdev)
-{
- struct jz4740_i2s *i2s = platform_get_drvdata(pdev);
-
- snd_soc_unregister_component(&pdev->dev);
-
- clk_put(i2s->clk_i2s);
- clk_put(i2s->clk_aic);
-
- iounmap(i2s->base);
- release_mem_region(i2s->mem->start, resource_size(i2s->mem));
-
- kfree(i2s);
-
- return 0;
+ return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL,
+ SND_DMAENGINE_PCM_FLAG_COMPAT);
}
static struct platform_driver jz4740_i2s_driver = {
.probe = jz4740_i2s_dev_probe,
- .remove = jz4740_i2s_dev_remove,
.driver = {
.name = "jz4740-i2s",
.owner = THIS_MODULE,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-15 09:54:56 +0000