diff options
| author | Yong Zhi <yong.zhi@intel.com> | 2016-05-17 09:43:05 -0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-05-30 16:15:45 +0100 |
| commit | 0c7941a63a0f46cfd4c41f30e5fcd55e678d535c (patch) | |
| tree | 8d36eef17aa37d13c12b8882dadcbad3b4b82b37 /sound/soc/intel/boards | |
| parent | d6c9f6afaf4d309223c0ccc60f67f21e21d71a17 (diff) | |
ASoC: Intel: Skylake: Use refcap device for mono recording
Only mono channel is allowed for refcap device.
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel/boards')
| -rw-r--r-- | sound/soc/intel/boards/skl_nau88l25_ssm4567.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/skl_nau88l25_ssm4567.c b/sound/soc/intel/boards/skl_nau88l25_ssm4567.c index e19aa99c4f72..2647d885ee00 100644 --- a/sound/soc/intel/boards/skl_nau88l25_ssm4567.c +++ b/sound/soc/intel/boards/skl_nau88l25_ssm4567.c @@ -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); |