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| author | Jerome Brunet <jbrunet@baylibre.com> | 2018-06-27 17:36:38 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-06-28 11:19:50 +0100 |
| commit | 4febced15ac8ddb9cf3e603edb111842e4863d9a (patch) | |
| tree | 6f2f305271f25008596457fa05e062bfc5a587c0 /sound/soc/soc-pcm.c | |
| parent | b66c9b911fe6ca188002b342b05c43deab4491a3 (diff) | |
| download | linux-stable-4febced15ac8ddb9cf3e603edb111842e4863d9a.tar.gz linux-stable-4febced15ac8ddb9cf3e603edb111842e4863d9a.tar.bz2 linux-stable-4febced15ac8ddb9cf3e603edb111842e4863d9a.zip | |
ASoC: dpcm: don't merge format from invalid codec dai
When merging codec formats, dpcm_runtime_base_format() should skip
the codecs which are not supporting the current stream direction.
At the moment, if a BE link has more than one codec, and only one
of these codecs has no capture DAI, it becomes impossible to start
a capture stream because the merged format would be 0.
Skipping invalid codec DAI solves the problem.
Fixes: b073ed4e2126 ("ASoC: soc-pcm: DPCM cares BE format")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Diffstat (limited to 'sound/soc/soc-pcm.c')
| -rw-r--r-- | sound/soc/soc-pcm.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c index 5e7ae47a9658..5feae9666822 100644 --- a/sound/soc/soc-pcm.c +++ b/sound/soc/soc-pcm.c @@ -1694,6 +1694,14 @@ static u64 dpcm_runtime_base_format(struct snd_pcm_substream *substream) int i; for (i = 0; i < be->num_codecs; i++) { + /* + * Skip CODECs which don't support the current stream + * type. See soc_pcm_init_runtime_hw() for more details + */ + if (!snd_soc_dai_stream_valid(be->codec_dais[i], + stream)) + continue; + codec_dai_drv = be->codec_dais[i]->driver; if (stream == SNDRV_PCM_STREAM_PLAYBACK) codec_stream = &codec_dai_drv->playback; |