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ASoC: core: Add platform component mutex 

Add mutex support for platform IO operations. e.g. can be used
for platform DAPM widget IO ops.

Signed-off-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Liam Girdwood 2012-03-06 18:16:18 +00:00 committed by Mark Brown
parent c25cd15439
commit cc22d37e7f
2 changed files with 2 additions and 0 deletions
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1
include/sound/soc.h
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@ -718,6 +718,7 @@ struct snd_soc_platform {
int id;
struct device *dev;
struct snd_soc_platform_driver *driver;
struct mutex mutex;
unsigned int suspended:1; /* platform is suspended */
unsigned int probed:1;

1
sound/soc/soc-core.c
View File

@ -3382,6 +3382,7 @@ int snd_soc_register_platform(struct device *dev,
platform->dapm.dev = dev;
platform->dapm.platform = platform;
platform->dapm.stream_event = platform_drv->stream_event;
mutex_init(&platform->mutex);
mutex_lock(&client_mutex);
list_add(&platform->list, &platform_list);