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| author | Vinod Koul <vinod.koul@intel.com> | 2015-11-13 16:52:12 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-11-18 21:46:36 +0300 |
| commit | 5eab6ab9c7882f63d7dd544b736293a9d2b8106c (patch) | |
| tree | 617f7e29fd309152d67b3644120450e95efbdc69 /sound/soc/intel/boards | |
| parent | 0ed95d769c8d6c1030dd9f94cf6fb2a6ed98a4ce (diff) | |
| download | linux-5eab6ab9c7882f63d7dd544b736293a9d2b8106c.tar.xz | |
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>
Diffstat (limited to 'sound/soc/intel/boards')
| -rw-r--r-- | sound/soc/intel/boards/skl_rt286.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/skl_rt286.c b/sound/soc/intel/boards/skl_rt286.c index e6af48491229..9c67e05a24b3 100644 --- a/sound/soc/intel/boards/skl_rt286.c +++ b/sound/soc/intel/boards/skl_rt286.c @@ -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", |