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authorYong Zhi <yong.zhi@intel.com>2016-05-17 19:43:04 +0300
committerMark Brown <broonie@kernel.org>2016-05-30 18:15:45 +0300
commitd6c9f6afaf4d309223c0ccc60f67f21e21d71a17 (patch)
tree6d3ebb09675792097e801425f61d856d961dd75b /sound/soc/intel/boards/skl_nau88l25_max98357a.c
parent2d0b29dca8d6fe49a73cfc16888c1d2e55111d7b (diff)
downloadlinux-d6c9f6afaf4d309223c0ccc60f67f21e21d71a17.tar.xz
ASoC: Intel: Skylake: Add channel constraints for refcap
Add constraint for ref DMIC to match with the topology firmware config. 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/skl_nau88l25_max98357a.c')
-rw-r--r--sound/soc/intel/boards/skl_nau88l25_max98357a.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/skl_nau88l25_max98357a.c b/sound/soc/intel/boards/skl_nau88l25_max98357a.c
index d2808652b974..fc3f4750c432 100644
--- a/sound/soc/intel/boards/skl_nau88l25_max98357a.c
+++ b/sound/soc/intel/boards/skl_nau88l25_max98357a.c
@@ -382,8 +382,22 @@ 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);