ASoC: bdw-rt5650: add channel constraint (08d6713a) · Commits · 戴 / test

sound/soc/intel/boards/bdw-rt5650.c

+29 −0

Original line number	Diff line number	Diff line
		@@ -162,6 +162,34 @@ static int bdw_rt5650_rtd_init(struct snd_soc_pcm_runtime *rtd)
		}
		#endif

		static const unsigned int channels[] = {
		2, 4,
		};

		static const struct snd_pcm_hw_constraint_list constraints_channels = {
		.count = ARRAY_SIZE(channels),
		.list = channels,
		.mask = 0,
		};

		static int bdw_rt5650_fe_startup(struct snd_pcm_substream *substream)
		{
		struct snd_pcm_runtime *runtime = substream->runtime;

		/* Board supports stereo and quad configurations for capture */
		if (substream->stream != SNDRV_PCM_STREAM_CAPTURE)
		return 0;

		runtime->hw.channels_max = 4;
		return snd_pcm_hw_constraint_list(runtime, 0,
		SNDRV_PCM_HW_PARAM_CHANNELS,
		&constraints_channels);
		}

		static const struct snd_soc_ops bdw_rt5650_fe_ops = {
		.startup = bdw_rt5650_fe_startup,
		};

		static int bdw_rt5650_init(struct snd_soc_pcm_runtime *rtd)
		{
		struct bdw_rt5650_priv *bdw_rt5650 =
		@@ -234,6 +262,7 @@ static struct snd_soc_dai_link bdw_rt5650_dais[] = {
		.name = "System PCM",
		.stream_name = "System Playback",
		.dynamic = 1,
		.ops = &bdw_rt5650_fe_ops,
		#if !IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
		.init = bdw_rt5650_rtd_init,
		#endif