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Commit 5eab6ab9 authored by Vinod Koul's avatar Vinod Koul Committed by Mark Brown
Browse files

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: default avatarJeeja KP <jeeja.kp@intel.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 0ed95d76

sound/soc/intel/boards/skl_rt286.c

+49 −0
Original line number Diff line number Diff line
@@ -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",