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| author | Senthilnathan Veppur <senthilnathanx.veppur@intel.com> | 2016-06-13 17:58:59 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-06-14 14:59:33 +0100 |
| commit | 4cdf33feb2c67ef1ff45bc5160b261b8c1fd2428 (patch) | |
| tree | d105486825d9d8f9ff465238b566dc10b5d89195 /sound/soc/intel/boards/bxt_rt298.c | |
| parent | bfcdc6d19008c0f11cba30c2cff1b63ec4e7a744 (diff) | |
| download | linux-0-day-4cdf33feb2c67ef1ff45bc5160b261b8c1fd2428.tar.gz linux-0-day-4cdf33feb2c67ef1ff45bc5160b261b8c1fd2428.tar.xz | |
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>
Diffstat (limited to 'sound/soc/intel/boards/bxt_rt298.c')
| -rw-r--r-- | sound/soc/intel/boards/bxt_rt298.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c index 9b649b6cc757b..10eb5cbf57e44 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] { |