diff options
| author | Yu-Hsuan Hsu <[email protected]> | 2019-09-24 00:29:40 +0800 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2019-11-11 19:42:34 +0000 |
| commit | e2db787bdcb4f2722ecf410168f0583764634e45 (patch) | |
| tree | 205e2ae14098d47a3f0b0f6aac74b73098103ee8 | |
| parent | 36da67630d3159e48e37a9f9b2d26ceece426482 (diff) | |
ASoC: Intel: kbl_rt5663_rt5514_max98927: Add dmic format constraint
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 <[email protected]>
Acked-by: Pierre-Louis Bossart <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Mark Brown <[email protected]>
| -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 a1056cda3dd7..3e5f6bead229 100644 --- a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c +++ b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c @@ -465,6 +465,9 @@ 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); } |