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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2008-09-06 18:33:24 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-09-09 09:11:59 +0200 |
| commit | 6010b2da1f11752dd58191423fc9878b0ce420c8 (patch) | |
| tree | c96d329d2e3e17d4da2de15d6fc359a5022fc691 /sound/soc | |
| parent | 3e860846d7f44993ded9b4fbf36e7b051b86df08 (diff) | |
| download | linux-6010b2da1f11752dd58191423fc9878b0ce420c8.tar.gz linux-6010b2da1f11752dd58191423fc9878b0ce420c8.tar.bz2 linux-6010b2da1f11752dd58191423fc9878b0ce420c8.zip | |
ALSA: ASoC: Use codec digital mute when stopping playback
Muting the DAC masks artefacts introduced as the digital stream shuts
down, for example when the input stops being clocked.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/soc-core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 1563ceedf61a..ad381138fc2e 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -340,6 +340,12 @@ static int soc_codec_close(struct snd_pcm_substream *substream) } codec->active--; + /* Muting the DAC suppresses artifacts caused during digital + * shutdown, for example from stopping clocks. + */ + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + snd_soc_dai_digital_mute(codec_dai, 1); + if (cpu_dai->ops.shutdown) cpu_dai->ops.shutdown(substream); |