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ASoC: Intel: Add FE rate & channel constraints for bxt-rt298 

We support stereo 48Khz audio, so add these as constraints
for this card

Signed-off-by: Senthilnathan Veppur <senthilnathanx.veppur@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Senthilnathan Veppur 2016-06-13 17:58:59 +05:30 committed by Mark Brown
parent bfcdc6d190
commit 4cdf33feb2
1 changed files with 36 additions and 0 deletions
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36
sound/soc/intel/boards/bxt_rt298.c
View File

@ -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]
{