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Diffstat (limited to 'sound/soc/pxa/pxa2xx-i2s.c')
-rw-r--r--sound/soc/pxa/pxa2xx-i2s.c91
1 files changed, 45 insertions, 46 deletions
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index c1a5275721e4..11be5952a506 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -27,7 +27,6 @@
#include <mach/dma.h>
#include <mach/audio.h>
-#include "pxa2xx-pcm.h"
#include "pxa2xx-i2s.h"
/*
@@ -80,6 +79,7 @@ struct pxa_i2s_port {
};
static struct pxa_i2s_port pxa_i2s;
static struct clk *clk_i2s;
+static int clk_ena = 0;
static struct pxa2xx_pcm_dma_params pxa2xx_i2s_pcm_stereo_out = {
.name = "I2S PCM Stereo out",
@@ -101,7 +101,7 @@ static int pxa2xx_i2s_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
if (IS_ERR(clk_i2s))
return PTR_ERR(clk_i2s);
@@ -162,13 +162,11 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
struct pxa2xx_pcm_dma_params *dma_data;
BUG_ON(IS_ERR(clk_i2s));
clk_enable(clk_i2s);
- dai->private_data = dai;
+ clk_ena = 1;
pxa_i2s_wait();
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
@@ -176,7 +174,7 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
else
dma_data = &pxa2xx_i2s_pcm_stereo_in;
- snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
+ snd_soc_dai_set_dma_data(dai, substream, dma_data);
/* is port used by another stream */
if (!(SACR0 & SACR0_ENB)) {
@@ -259,9 +257,9 @@ static void pxa2xx_i2s_shutdown(struct snd_pcm_substream *substream,
if ((SACR1 & (SACR1_DREC | SACR1_DRPL)) == (SACR1_DREC | SACR1_DRPL)) {
SACR0 &= ~SACR0_ENB;
pxa_i2s_wait();
- if (dai->private_data != NULL) {
+ if (clk_ena) {
clk_disable(clk_i2s);
- dai->private_data = NULL;
+ clk_ena = 0;
}
}
}
@@ -300,6 +298,35 @@ static int pxa2xx_i2s_resume(struct snd_soc_dai *dai)
#define pxa2xx_i2s_resume NULL
#endif
+static int pxa2xx_i2s_probe(struct snd_soc_dai *dai)
+{
+ clk_i2s = clk_get(dai->dev, "I2SCLK");
+ if (IS_ERR(clk_i2s))
+ return PTR_ERR(clk_i2s);
+
+ /*
+ * PXA Developer's Manual:
+ * If SACR0[ENB] is toggled in the middle of a normal operation,
+ * the SACR0[RST] bit must also be set and cleared to reset all
+ * I2S controller registers.
+ */
+ SACR0 = SACR0_RST;
+ SACR0 = 0;
+ /* Make sure RPL and REC are disabled */
+ SACR1 = SACR1_DRPL | SACR1_DREC;
+ /* Along with FIFO servicing */
+ SAIMR &= ~(SAIMR_RFS | SAIMR_TFS);
+
+ return 0;
+}
+
+static int pxa2xx_i2s_remove(struct snd_soc_dai *dai)
+{
+ clk_put(clk_i2s);
+ clk_i2s = ERR_PTR(-ENOENT);
+ return 0;
+}
+
#define PXA2XX_I2S_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000)
@@ -313,9 +340,9 @@ static struct snd_soc_dai_ops pxa_i2s_dai_ops = {
.set_sysclk = pxa2xx_i2s_set_dai_sysclk,
};
-struct snd_soc_dai pxa_i2s_dai = {
- .name = "pxa2xx-i2s",
- .id = 0,
+static struct snd_soc_dai_driver pxa_i2s_dai = {
+ .probe = pxa2xx_i2s_probe,
+ .remove = pxa2xx_i2s_remove,
.suspend = pxa2xx_i2s_suspend,
.resume = pxa2xx_i2s_resume,
.playback = {
@@ -332,49 +359,20 @@ struct snd_soc_dai pxa_i2s_dai = {
.symmetric_rates = 1,
};
-EXPORT_SYMBOL_GPL(pxa_i2s_dai);
-
-static int pxa2xx_i2s_probe(struct platform_device *dev)
+static int pxa2xx_i2s_drv_probe(struct platform_device *pdev)
{
- int ret;
-
- clk_i2s = clk_get(&dev->dev, "I2SCLK");
- if (IS_ERR(clk_i2s))
- return PTR_ERR(clk_i2s);
-
- pxa_i2s_dai.dev = &dev->dev;
- pxa_i2s_dai.private_data = NULL;
- ret = snd_soc_register_dai(&pxa_i2s_dai);
- if (ret != 0)
- clk_put(clk_i2s);
-
- /*
- * PXA Developer's Manual:
- * If SACR0[ENB] is toggled in the middle of a normal operation,
- * the SACR0[RST] bit must also be set and cleared to reset all
- * I2S controller registers.
- */
- SACR0 = SACR0_RST;
- SACR0 = 0;
- /* Make sure RPL and REC are disabled */
- SACR1 = SACR1_DRPL | SACR1_DREC;
- /* Along with FIFO servicing */
- SAIMR &= ~(SAIMR_RFS | SAIMR_TFS);
-
- return ret;
+ return snd_soc_register_dai(&pdev->dev, &pxa_i2s_dai);
}
-static int __devexit pxa2xx_i2s_remove(struct platform_device *dev)
+static int __devexit pxa2xx_i2s_drv_remove(struct platform_device *pdev)
{
- snd_soc_unregister_dai(&pxa_i2s_dai);
- clk_put(clk_i2s);
- clk_i2s = ERR_PTR(-ENOENT);
+ snd_soc_unregister_dai(&pdev->dev);
return 0;
}
static struct platform_driver pxa2xx_i2s_driver = {
- .probe = pxa2xx_i2s_probe,
- .remove = __devexit_p(pxa2xx_i2s_remove),
+ .probe = pxa2xx_i2s_drv_probe,
+ .remove = __devexit_p(pxa2xx_i2s_drv_remove),
.driver = {
.name = "pxa2xx-i2s",
@@ -400,3 +398,4 @@ module_exit(pxa2xx_i2s_exit);
MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
MODULE_DESCRIPTION("pxa2xx I2S SoC Interface");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa2xx-i2s");