summaryrefslogtreecommitdiff
path: root/sound/soc/au1x/psc-i2s.c
diff options
context:
space:
mode:
Diffstat (limited to 'sound/soc/au1x/psc-i2s.c')
-rw-r--r--sound/soc/au1x/psc-i2s.c53
1 files changed, 15 insertions, 38 deletions
diff --git a/sound/soc/au1x/psc-i2s.c b/sound/soc/au1x/psc-i2s.c
index 6083fe7799fa..fca091276320 100644
--- a/sound/soc/au1x/psc-i2s.c
+++ b/sound/soc/au1x/psc-i2s.c
@@ -10,9 +10,6 @@
*
* Au1xxx-PSC I2S glue.
*
- * NOTE: all of these drivers can only work with a SINGLE instance
- * of a PSC. Multiple independent audio devices are impossible
- * with ASoC v1.
* NOTE: so far only PSC slave mode (bit- and frameclock) is supported.
*/
@@ -54,13 +51,10 @@
((stype) == PCM_TX ? PSC_I2SPCR_TC : PSC_I2SPCR_RC)
-/* instance data. There can be only one, MacLeod!!!! */
-static struct au1xpsc_audio_data *au1xpsc_i2s_workdata;
-
static int au1xpsc_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
unsigned int fmt)
{
- struct au1xpsc_audio_data *pscdata = au1xpsc_i2s_workdata;
+ struct au1xpsc_audio_data *pscdata = snd_soc_dai_get_drvdata(cpu_dai);
unsigned long ct;
int ret;
@@ -120,7 +114,7 @@ static int au1xpsc_i2s_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
{
- struct au1xpsc_audio_data *pscdata = au1xpsc_i2s_workdata;
+ struct au1xpsc_audio_data *pscdata = snd_soc_dai_get_drvdata(dai);
int cfgbits;
unsigned long stat;
@@ -245,7 +239,7 @@ static int au1xpsc_i2s_stop(struct au1xpsc_audio_data *pscdata, int stype)
static int au1xpsc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
struct snd_soc_dai *dai)
{
- struct au1xpsc_audio_data *pscdata = au1xpsc_i2s_workdata;
+ struct au1xpsc_audio_data *pscdata = snd_soc_dai_get_drvdata(dai);
int ret, stype = SUBSTREAM_TYPE(substream);
switch (cmd) {
@@ -263,27 +257,13 @@ static int au1xpsc_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
return ret;
}
-static int au1xpsc_i2s_probe(struct platform_device *pdev,
- struct snd_soc_dai *dai)
-{
- return au1xpsc_i2s_workdata ? 0 : -ENODEV;
-}
-
-static void au1xpsc_i2s_remove(struct platform_device *pdev,
- struct snd_soc_dai *dai)
-{
-}
-
static struct snd_soc_dai_ops au1xpsc_i2s_dai_ops = {
.trigger = au1xpsc_i2s_trigger,
.hw_params = au1xpsc_i2s_hw_params,
.set_fmt = au1xpsc_i2s_set_fmt,
};
-struct snd_soc_dai au1xpsc_i2s_dai = {
- .name = "au1xpsc_i2s",
- .probe = au1xpsc_i2s_probe,
- .remove = au1xpsc_i2s_remove,
+static const struct snd_soc_dai_driver au1xpsc_i2s_dai_template = {
.playback = {
.rates = AU1XPSC_I2S_RATES,
.formats = AU1XPSC_I2S_FMTS,
@@ -298,7 +278,6 @@ struct snd_soc_dai au1xpsc_i2s_dai = {
},
.ops = &au1xpsc_i2s_dai_ops,
};
-EXPORT_SYMBOL(au1xpsc_i2s_dai);
static int __devinit au1xpsc_i2s_drvprobe(struct platform_device *pdev)
{
@@ -307,9 +286,6 @@ static int __devinit au1xpsc_i2s_drvprobe(struct platform_device *pdev)
int ret;
struct au1xpsc_audio_data *wd;
- if (au1xpsc_i2s_workdata)
- return -EBUSY;
-
wd = kzalloc(sizeof(struct au1xpsc_audio_data), GFP_KERNEL);
if (!wd)
return -ENOMEM;
@@ -346,19 +322,23 @@ static int __devinit au1xpsc_i2s_drvprobe(struct platform_device *pdev)
* time out.
*/
- ret = snd_soc_register_dai(&au1xpsc_i2s_dai);
+ /* name the DAI like this device instance ("au1xpsc-i2s.PSCINDEX") */
+ memcpy(&wd->dai_drv, &au1xpsc_i2s_dai_template,
+ sizeof(struct snd_soc_dai_driver));
+ wd->dai_drv.name = dev_name(&pdev->dev);
+
+ platform_set_drvdata(pdev, wd);
+
+ ret = snd_soc_register_dai(&pdev->dev, &wd->dai_drv);
if (ret)
goto out1;
/* finally add the DMA device for this PSC */
wd->dmapd = au1xpsc_pcm_add(pdev);
- if (wd->dmapd) {
- platform_set_drvdata(pdev, wd);
- au1xpsc_i2s_workdata = wd;
+ if (wd->dmapd)
return 0;
- }
- snd_soc_unregister_dai(&au1xpsc_i2s_dai);
+ snd_soc_unregister_dai(&pdev->dev);
out1:
release_mem_region(r->start, resource_size(r));
out0:
@@ -374,7 +354,7 @@ static int __devexit au1xpsc_i2s_drvremove(struct platform_device *pdev)
if (wd->dmapd)
au1xpsc_pcm_destroy(wd->dmapd);
- snd_soc_unregister_dai(&au1xpsc_i2s_dai);
+ snd_soc_unregister_dai(&pdev->dev);
au_writel(0, I2S_CFG(wd));
au_sync();
@@ -385,8 +365,6 @@ static int __devexit au1xpsc_i2s_drvremove(struct platform_device *pdev)
release_mem_region(r->start, resource_size(r));
kfree(wd);
- au1xpsc_i2s_workdata = NULL; /* MDEV */
-
return 0;
}
@@ -446,7 +424,6 @@ static struct platform_driver au1xpsc_i2s_driver = {
static int __init au1xpsc_i2s_load(void)
{
- au1xpsc_i2s_workdata = NULL;
return platform_driver_register(&au1xpsc_i2s_driver);
}