From: Senthilnathan Veppur <senthilnathanx.veppur@xxxxxxxxx>
We support stereo 48Khz audio, so add these as constraints
for this card
Signed-off-by: Senthilnathan Veppur <senthilnathanx.veppur@xxxxxxxxx>
Signed-off-by: Vinod Koul <vinod.koul@xxxxxxxxx>
---
sound/soc/intel/boards/bxt_rt298.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c
index 9b649b6cc757..10eb5cbf57e4 100644
--- a/sound/soc/intel/boards/bxt_rt298.c
+++ b/sound/soc/intel/boards/bxt_rt298.c
@@ -220,6 +220,40 @@ static struct snd_soc_ops broxton_dmic_ops = {
.startup = broxton_dmic_startup,
};
+static unsigned int channels[] = {
+ 2,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_channels = {
+ .count = ARRAY_SIZE(channels),
+ .list = channels,
+ .mask = 0,
+};
+
+static int bxt_fe_startup(struct snd_pcm_substream *substream)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+
+ /*
+ * on this platform for PCM device we support:
+ * 48Khz
+ * stereo
+ */
+
+ runtime->hw.channels_max = 2;
+ snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+ &constraints_channels);
+
+ snd_pcm_hw_constraint_list(runtime, 0,
+ SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+
+ return 0;
+}
+
+static const struct snd_soc_ops broxton_rt286_fe_ops = {
+ .startup = bxt_fe_startup,
+};
+
/* broxton digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link broxton_rt298_dais[] = {
/* Front End DAI links */
@@ -235,6 +269,7 @@ static struct snd_soc_dai_link broxton_rt298_dais[] = {
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dpcm_playback = 1,
+ .ops = &broxton_rt286_fe_ops,
},
[BXT_DPCM_AUDIO_CP]
{
@@ -248,6 +283,7 @@ static struct snd_soc_dai_link broxton_rt298_dais[] = {
.codec_dai_name = "snd-soc-dummy-dai",
.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
.dpcm_capture = 1,
+ .ops = &broxton_rt286_fe_ops,
},
[BXT_DPCM_AUDIO_REF_CP]
{
--
1.9.1
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