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Commit e2257971 authored by Arnaud Pouliquen's avatar Arnaud Pouliquen Committed by Mark Brown
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ASoC: simple card: set cpu-dai sysclk with mclk-fs 



Allows to request a specific mclk frequency per cpu_dai.
To support some codecs with mclk provided by the cpu_dai, the
mclk rate must be set depending on frame rate.

Signed-off-by: default avatarArnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent d770e558

sound/soc/generic/simple-card.c

+9 −0
Original line number Diff line number Diff line
@@ -76,6 +76,7 @@ static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream, 
{

	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	struct snd_soc_dai *codec_dai = rtd->codec_dai;

	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;

	struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);

	struct simple_dai_props *dai_props =

		&priv->dai_props[rtd - rtd->card->rtd];
@@ -91,8 +92,16 @@ static int asoc_simple_card_hw_params(struct snd_pcm_substream *substream, 
		mclk = params_rate(params) * mclk_fs;

		ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,

					     SND_SOC_CLOCK_IN);

		if (ret && ret != -ENOTSUPP)

			goto err;



		ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,

					     SND_SOC_CLOCK_OUT);

		if (ret && ret != -ENOTSUPP)

			goto err;

	}



err:

	return ret;

}