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ASoC: dpcm: symmetry constraint on FE substream

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We should set BE symmetric constraint on FE substream.

in case one BE is used by two FE1/FE2,
the first BE runtime will use FE1's substream->runtime.
hence the FE1's will be constrained by BE symmetry property.

Though, second FE2 call dpcm_apply_symmetry,
the be_substream->runtime == FE1's substream->runtime.
The FE2's substream->runtime will not be constrained
by BE's symmetry property.

Signed-off-by: KaiChieh Chuang <kaichieh.chuang@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kai Chieh Chuang 2018-05-28 10:18:19 +08:00 committed by Mark Brown
parent 9c0ac70ad2
commit 99bcedbdeb
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GPG key ID: 24D68B725D5487D0
1 changed files with 3 additions and 2 deletions
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5
sound/soc/soc-pcm.c
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@ -1779,14 +1779,15 @@ static int dpcm_apply_symmetry(struct snd_pcm_substream *fe_substream,
/* Symmetry only applies if we've got an active stream. */
if (rtd->cpu_dai->active) {
err = soc_pcm_apply_symmetry(be_substream, rtd->cpu_dai);
err = soc_pcm_apply_symmetry(fe_substream,
rtd->cpu_dai);
if (err < 0)
return err;
}
for (i = 0; i < rtd->num_codecs; i++) {
if (rtd->codec_dais[i]->active) {
err = soc_pcm_apply_symmetry(be_substream,
err = soc_pcm_apply_symmetry(fe_substream,
rtd->codec_dais[i]);
if (err < 0)
return err;