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Commit 4cdf33fe authored by Senthilnathan Veppur's avatar Senthilnathan Veppur Committed by Mark Brown
Browse files

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: default avatarSenthilnathan Veppur <senthilnathanx.veppur@intel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent bfcdc6d1

sound/soc/intel/boards/bxt_rt298.c

+36 −0
Original line number Diff line number Diff line
@@ -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]

	{