From: Yu-Hsuan Hsu Date: Mon, 23 Sep 2019 16:29:40 +0000 (+0800) Subject: ASoC: Intel: kbl_rt5663_rt5514_max98927: Add dmic format constraint X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e2db787bdcb4f2722ecf410168f0583764634e45;p=linux.git 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 Acked-by: Pierre-Louis Bossart Link: https://lore.kernel.org/r/20190923162940.199580-1-yuhsuan@chromium.org Signed-off-by: Mark Brown --- diff --git a/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c b/sound/soc/intel/boards/kbl_rt5663_rt5514_max98927.c index a1056cda3dd79..3e5f6bead2290 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); }