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ASoC: soc-pcm: DPCM cares BE channel constraint

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Current DPCM is caring only FE channel configuration. Sometimes
it will be trouble if user selects channel which isn't supported
by BE.

This patch adds new .dpcm_merged_chan on struct snd_soc_dai_link.
DPCM will use FE / BE merged channel if struct snd_soc_dai_link
has it.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Jiada Wang 2018-06-20 18:25:20 +09:00 • committed by Mark Brown
parent a12f671b42
commit f4c277b817
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2 changed files with 48 additions and 0 deletions
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include/sound/soc.h
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@ -957,6 +957,8 @@ struct snd_soc_dai_link {
/* DPCM used FE & BE merged format */
unsigned int dpcm_merged_format:1;
/* DPCM used FE & BE merged channel */
unsigned int dpcm_merged_chan:1;
/* pmdown_time is ignored at stop */
unsigned int ignore_pmdown_time:1;