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path: root/sound/soc/davinci/davinci-i2s.c
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Diffstat (limited to 'sound/soc/davinci/davinci-i2s.c')
-rw-r--r--sound/soc/davinci/davinci-i2s.c142
1 files changed, 72 insertions, 70 deletions
diff --git a/sound/soc/davinci/davinci-i2s.c b/sound/soc/davinci/davinci-i2s.c
index 9e8932abf15..7682af31d6e 100644
--- a/sound/soc/davinci/davinci-i2s.c
+++ b/sound/soc/davinci/davinci-i2s.c
@@ -16,6 +16,7 @@
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/clk.h>
+#include <linux/platform_data/davinci_asp.h>
#include <sound/core.h>
#include <sound/pcm.h>
@@ -23,8 +24,6 @@
#include <sound/initval.h>
#include <sound/soc.h>
-#include <mach/asp.h>
-
#include "davinci-pcm.h"
#include "davinci-i2s.h"
@@ -183,8 +182,7 @@ static void davinci_mcbsp_start(struct davinci_mcbsp_dev *dev,
struct snd_pcm_substream *substream)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_device *socdev = rtd->socdev;
- struct snd_soc_platform *platform = socdev->card->platform;
+ struct snd_soc_platform *platform = rtd->platform;
int playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
u32 spcr;
u32 mask = playback ? DAVINCI_MCBSP_SPCR_XRST : DAVINCI_MCBSP_SPCR_RRST;
@@ -205,8 +203,8 @@ static void davinci_mcbsp_start(struct davinci_mcbsp_dev *dev,
if (playback) {
/* Stop the DMA to avoid data loss */
/* while the transmitter is out of reset to handle XSYNCERR */
- if (platform->pcm_ops->trigger) {
- int ret = platform->pcm_ops->trigger(substream,
+ if (platform->driver->ops->trigger) {
+ int ret = platform->driver->ops->trigger(substream,
SNDRV_PCM_TRIGGER_STOP);
if (ret < 0)
printk(KERN_DEBUG "Playback DMA stop failed\n");
@@ -227,8 +225,8 @@ static void davinci_mcbsp_start(struct davinci_mcbsp_dev *dev,
toggle_clock(dev, playback);
/* Restart the DMA */
- if (platform->pcm_ops->trigger) {
- int ret = platform->pcm_ops->trigger(substream,
+ if (platform->driver->ops->trigger) {
+ int ret = platform->driver->ops->trigger(substream,
SNDRV_PCM_TRIGGER_START);
if (ret < 0)
printk(KERN_DEBUG "Playback DMA start failed\n");
@@ -263,9 +261,10 @@ static void davinci_mcbsp_stop(struct davinci_mcbsp_dev *dev, int playback)
static int davinci_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
unsigned int fmt)
{
- struct davinci_mcbsp_dev *dev = cpu_dai->private_data;
+ struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(cpu_dai);
unsigned int pcr;
unsigned int srgr;
+ bool inv_fs = false;
/* Attention srgr is updated by hw_params! */
srgr = DAVINCI_MCBSP_SRGR_FSGM |
DAVINCI_MCBSP_SRGR_FPER(DEFAULT_BITPERSAMPLE * 2 - 1) |
@@ -331,7 +330,7 @@ static int davinci_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
* more empty bit clock slots between channels as the sample
* rate is lowered.
*/
- fmt ^= SND_SOC_DAIFMT_NB_IF;
+ inv_fs = true;
case SND_SOC_DAIFMT_DSP_A:
dev->mode = MOD_DSP_A;
break;
@@ -395,6 +394,8 @@ static int davinci_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
default:
return -EINVAL;
}
+ if (inv_fs == true)
+ pcr ^= (DAVINCI_MCBSP_PCR_FSXP | DAVINCI_MCBSP_PCR_FSRP);
davinci_mcbsp_write_reg(dev, DAVINCI_MCBSP_SRGR_REG, srgr);
dev->pcr = pcr;
davinci_mcbsp_write_reg(dev, DAVINCI_MCBSP_PCR_REG, pcr);
@@ -404,7 +405,7 @@ static int davinci_i2s_set_dai_fmt(struct snd_soc_dai *cpu_dai,
static int davinci_i2s_dai_set_clkdiv(struct snd_soc_dai *cpu_dai,
int div_id, int div)
{
- struct davinci_mcbsp_dev *dev = cpu_dai->private_data;
+ struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(cpu_dai);
if (div_id != DAVINCI_MCBSP_CLKGDV)
return -ENODEV;
@@ -417,7 +418,7 @@ static int davinci_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct davinci_mcbsp_dev *dev = dai->private_data;
+ struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(dai);
struct davinci_pcm_dma_params *dma_params =
&dev->dma_params[substream->stream];
struct snd_interval *i = NULL;
@@ -569,24 +570,18 @@ static int davinci_i2s_hw_params(struct snd_pcm_substream *substream,
static int davinci_i2s_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
- struct davinci_mcbsp_dev *dev = dai->private_data;
+ struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(dai);
int playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
davinci_mcbsp_stop(dev, playback);
- if ((dev->pcr & DAVINCI_MCBSP_PCR_FSXM) == 0) {
- /* codec is master */
- davinci_mcbsp_start(dev, substream);
- }
return 0;
}
static int davinci_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
- struct davinci_mcbsp_dev *dev = dai->private_data;
+ struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(dai);
int ret = 0;
int playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
- if ((dev->pcr & DAVINCI_MCBSP_PCR_FSXM) == 0)
- return 0; /* return if codec is master */
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
@@ -605,17 +600,27 @@ static int davinci_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
return ret;
}
+static int davinci_i2s_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(dai);
+
+ snd_soc_dai_set_dma_data(dai, substream, dev->dma_params);
+ return 0;
+}
+
static void davinci_i2s_shutdown(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
- struct davinci_mcbsp_dev *dev = dai->private_data;
+ struct davinci_mcbsp_dev *dev = snd_soc_dai_get_drvdata(dai);
int playback = (substream->stream == SNDRV_PCM_STREAM_PLAYBACK);
davinci_mcbsp_stop(dev, playback);
}
#define DAVINCI_I2S_RATES SNDRV_PCM_RATE_8000_96000
-static struct snd_soc_dai_ops davinci_i2s_dai_ops = {
+static const struct snd_soc_dai_ops davinci_i2s_dai_ops = {
+ .startup = davinci_i2s_startup,
.shutdown = davinci_i2s_shutdown,
.prepare = davinci_i2s_prepare,
.trigger = davinci_i2s_trigger,
@@ -625,9 +630,7 @@ static struct snd_soc_dai_ops davinci_i2s_dai_ops = {
};
-struct snd_soc_dai davinci_i2s_dai = {
- .name = "davinci-i2s",
- .id = 0,
+static struct snd_soc_dai_driver davinci_i2s_dai = {
.playback = {
.channels_min = 2,
.channels_max = 2,
@@ -641,7 +644,10 @@ struct snd_soc_dai davinci_i2s_dai = {
.ops = &davinci_i2s_dai_ops,
};
-EXPORT_SYMBOL_GPL(davinci_i2s_dai);
+
+static const struct snd_soc_component_driver davinci_i2s_component = {
+ .name = "davinci-i2s",
+};
static int davinci_i2s_probe(struct platform_device *pdev)
{
@@ -658,18 +664,18 @@ static int davinci_i2s_probe(struct platform_device *pdev)
return -ENODEV;
}
- ioarea = request_mem_region(mem->start, (mem->end - mem->start) + 1,
- pdev->name);
+ ioarea = devm_request_mem_region(&pdev->dev, mem->start,
+ resource_size(mem),
+ pdev->name);
if (!ioarea) {
dev_err(&pdev->dev, "McBSP region already claimed\n");
return -EBUSY;
}
- dev = kzalloc(sizeof(struct davinci_mcbsp_dev), GFP_KERNEL);
- if (!dev) {
- ret = -ENOMEM;
- goto err_release_region;
- }
+ dev = devm_kzalloc(&pdev->dev, sizeof(struct davinci_mcbsp_dev),
+ GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
if (pdata) {
dev->enable_channel_combine = pdata->enable_channel_combine;
dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].sram_size =
@@ -688,26 +694,29 @@ static int davinci_i2s_probe(struct platform_device *pdev)
dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].ram_chan_q = ram_chan_q;
dev->clk = clk_get(&pdev->dev, NULL);
- if (IS_ERR(dev->clk)) {
- ret = -ENODEV;
- goto err_free_mem;
- }
+ if (IS_ERR(dev->clk))
+ return -ENODEV;
clk_enable(dev->clk);
- dev->base = (void __iomem *)IO_ADDRESS(mem->start);
+ dev->base = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
+ if (!dev->base) {
+ dev_err(&pdev->dev, "ioremap failed\n");
+ ret = -ENOMEM;
+ goto err_release_clk;
+ }
dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].dma_addr =
- (dma_addr_t)(io_v2p(dev->base) + DAVINCI_MCBSP_DXR_REG);
+ (dma_addr_t)(mem->start + DAVINCI_MCBSP_DXR_REG);
dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].dma_addr =
- (dma_addr_t)(io_v2p(dev->base) + DAVINCI_MCBSP_DRR_REG);
+ (dma_addr_t)(mem->start + DAVINCI_MCBSP_DRR_REG);
/* first TX, then RX */
res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
if (!res) {
dev_err(&pdev->dev, "no DMA resource\n");
ret = -ENXIO;
- goto err_free_mem;
+ goto err_release_clk;
}
dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK].channel = res->start;
@@ -715,40 +724,43 @@ static int davinci_i2s_probe(struct platform_device *pdev)
if (!res) {
dev_err(&pdev->dev, "no DMA resource\n");
ret = -ENXIO;
- goto err_free_mem;
+ goto err_release_clk;
}
dev->dma_params[SNDRV_PCM_STREAM_CAPTURE].channel = res->start;
dev->dev = &pdev->dev;
- davinci_i2s_dai.private_data = dev;
- davinci_i2s_dai.capture.dma_data = dev->dma_params;
- davinci_i2s_dai.playback.dma_data = dev->dma_params;
- ret = snd_soc_register_dai(&davinci_i2s_dai);
+ dev_set_drvdata(&pdev->dev, dev);
+
+ ret = snd_soc_register_component(&pdev->dev, &davinci_i2s_component,
+ &davinci_i2s_dai, 1);
if (ret != 0)
- goto err_free_mem;
+ goto err_release_clk;
- return 0;
+ ret = davinci_soc_platform_register(&pdev->dev);
+ if (ret) {
+ dev_err(&pdev->dev, "register PCM failed: %d\n", ret);
+ goto err_unregister_component;
+ }
-err_free_mem:
- kfree(dev);
-err_release_region:
- release_mem_region(mem->start, (mem->end - mem->start) + 1);
+ return 0;
+err_unregister_component:
+ snd_soc_unregister_component(&pdev->dev);
+err_release_clk:
+ clk_disable(dev->clk);
+ clk_put(dev->clk);
return ret;
}
static int davinci_i2s_remove(struct platform_device *pdev)
{
- struct davinci_mcbsp_dev *dev = davinci_i2s_dai.private_data;
- struct resource *mem;
+ struct davinci_mcbsp_dev *dev = dev_get_drvdata(&pdev->dev);
+
+ snd_soc_unregister_component(&pdev->dev);
- snd_soc_unregister_dai(&davinci_i2s_dai);
clk_disable(dev->clk);
clk_put(dev->clk);
dev->clk = NULL;
- kfree(dev);
- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(mem->start, (mem->end - mem->start) + 1);
return 0;
}
@@ -757,22 +769,12 @@ static struct platform_driver davinci_mcbsp_driver = {
.probe = davinci_i2s_probe,
.remove = davinci_i2s_remove,
.driver = {
- .name = "davinci-asp",
+ .name = "davinci-mcbsp",
.owner = THIS_MODULE,
},
};
-static int __init davinci_i2s_init(void)
-{
- return platform_driver_register(&davinci_mcbsp_driver);
-}
-module_init(davinci_i2s_init);
-
-static void __exit davinci_i2s_exit(void)
-{
- platform_driver_unregister(&davinci_mcbsp_driver);
-}
-module_exit(davinci_i2s_exit);
+module_platform_driver(davinci_mcbsp_driver);
MODULE_AUTHOR("Vladimir Barinov");
MODULE_DESCRIPTION("TI DAVINCI I2S (McBSP) SoC Interface");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-07 20:34:50 +0000