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Commit 0c7941a6 authored by Yong Zhi's avatar Yong Zhi Committed by Mark Brown
Browse files

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



Only mono channel is allowed for refcap device.

Signed-off-by: default avatarYong Zhi <yong.zhi@intel.com>
Acked-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d6c9f6af

sound/soc/intel/boards/skl_nau88l25_ssm4567.c

+14 −0
Original line number Diff line number Diff line
@@ -430,8 +430,22 @@ static 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 skylake_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);