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ASoC: Intel: Skylake: Constrain the audio devices 

In ref configuration for Skylake, we support only 16bit, 48KHz,
stereo audio, so specify these as constrains for the devices

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vinod Koul 2015-11-13 19:22:12 +05:30 committed by Mark Brown
parent 0ed95d769c
commit 5eab6ab9c7
1 changed files with 49 additions and 0 deletions
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49
sound/soc/intel/boards/skl_rt286.c
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@ -104,6 +104,53 @@ static int skylake_rt286_codec_init(struct snd_soc_pcm_runtime *rtd)
return 0;
}
static unsigned int rates[] = {
48000,
};
static struct snd_pcm_hw_constraint_list constraints_rates = {
.count = ARRAY_SIZE(rates),
.list = rates,
.mask = 0,
};
static unsigned int channels[] = {
2,
};
static struct snd_pcm_hw_constraint_list constraints_channels = {
.count = ARRAY_SIZE(channels),
.list = channels,
.mask = 0,
};
static int skl_fe_startup(struct snd_pcm_substream *substream)
{
struct snd_pcm_runtime *runtime = substream->runtime;
/*
* on this platform for PCM device we support,
* 48Khz
* stereo
* 16 bit audio
*/
runtime->hw.channels_max = 2;
snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
&constraints_channels);
runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
snd_pcm_hw_constraint_list(runtime, 0,
SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
return 0;
}
static const struct snd_soc_ops skylake_rt286_fe_ops = {
.startup = skl_fe_startup,
};
static int skylake_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_pcm_hw_params *params)
@ -160,6 +207,7 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
SND_SOC_DPCM_TRIGGER_POST
},
.dpcm_playback = 1,
.ops = &skylake_rt286_fe_ops,
},
{
.name = "Skl Audio Capture Port",
@ -175,6 +223,7 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
SND_SOC_DPCM_TRIGGER_POST
},
.dpcm_capture = 1,
.ops = &skylake_rt286_fe_ops,
},
{
.name = "Skl Audio Reference cap",