diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h index 800c101bb096..c42864b34581 100644 --- a/include/sound/soc-dai.h +++ b/include/sound/soc-dai.h @@ -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. diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c index 5e633659c1b3..d14bdb3c52df 100644 --- a/sound/soc/soc-utils.c +++ b/sound/soc/soc-utils.c @@ -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;