Unverified Commit 26a6dce8 authored by Yong Zhi's avatar Yong Zhi Committed by Mark Brown
Browse files

ASoC: Intel: bxt: Use refcap device for mono recording 



The refcap capture device supports mono recording only, this patch
adds the channel constraints.

Signed-off-by: default avatarYong Zhi <yong.zhi@intel.com>
Reviewed-by: default avatarPierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 611cbc87

sound/soc/intel/boards/bxt_da7219_max98357a.c

+14 −0
Original line number Diff line number Diff line
@@ -324,8 +324,22 @@ static const struct snd_pcm_hw_constraint_list constraints_16000 = { 
	.list  = rates_16000,

};



static const unsigned int ch_mono[] = {

	1,

};



static const struct snd_pcm_hw_constraint_list constraints_refcap = {

	.count = ARRAY_SIZE(ch_mono),

	.list  = ch_mono,

};



static int broxton_refcap_startup(struct snd_pcm_substream *substream)

{

	substream->runtime->hw.channels_max = 1;

	snd_pcm_hw_constraint_list(substream->runtime, 0,

				   SNDRV_PCM_HW_PARAM_CHANNELS,

				   &constraints_refcap);



	return snd_pcm_hw_constraint_list(substream->runtime, 0,

			SNDRV_PCM_HW_PARAM_RATE,

			&constraints_16000);