diff options
| author | Yu-Hsuan Hsu <yuhsuan@chromium.org> | 2019-09-24 00:29:40 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-31 16:36:00 +0100 |
| commit | 370f7e11c2d7ce76829c9bbe63b49c09b4a1d206 (patch) | |
| tree | dbb8823509ab2bd67435f5ca9d0a24d6253873d7 /sound/soc | |
| parent | e6e50631793e5b85c2761a24cb4563c500b733ec (diff) | |
ASoC: Intel: kbl_rt5663_rt5514_max98927: Add dmic format constraint
[ Upstream commit e2db787bdcb4f2722ecf410168f0583764634e45 ]
On KBL platform, the microphone is attached to external codec(rt5514)
instead of PCH. However, TDM slot between PCH and codec is 16 bits only.
In order to avoid setting wrong format, we should add a constraint to
force to use 16 bits format forever.
Signed-off-by: Yu-Hsuan Hsu <yuhsuan@chromium.org>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190923162940.199580-1-yuhsuan@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c index b8a03f58ac8c..f36e33a14728 100644 --- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c +++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c @@ -423,6 +423,9 @@ static int kabylake_dmic_startup(struct snd_pcm_substream *substream) snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, dmic_constraints); + runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; + snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16); + return snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); } |