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ASoC: utils: Add internal call to determine if DAI is dummy. 

Provide a quick way to tell if a DAI is a dummy DAI or a regular DAI.
This is for internal DAPM usage only and is used to determine whether to
insert a DAI link connection into the DAPM graph.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Liam Girdwood 2014-01-08 10:40:18 +00:00 committed by Mark Brown
parent 5276597667
commit bece9e957c
2 changed files with 9 additions and 0 deletions
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2
include/sound/soc-dai.h
View File

@ -123,6 +123,8 @@ int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate);
int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
int direction);
int snd_soc_dai_is_dummy(struct snd_soc_dai *dai);
struct snd_soc_dai_ops {
/*
* DAI clocking configuration, all optional.

7
sound/soc/soc-utils.c
View File

@ -123,6 +123,13 @@ static struct snd_soc_dai_driver dummy_dai = {
},
};
int snd_soc_dai_is_dummy(struct snd_soc_dai *dai)
{
if (dai->driver == &dummy_dai)
return 1;
return 0;
}
static int snd_soc_dummy_probe(struct platform_device *pdev)
{
int ret;