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ASoC: simple card: set cpu-dai sysclk with mclk-fs

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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: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Arnaud Pouliquen 2015-06-05 10:19:06 +02:00 committed by Mark Brown
parent d770e558e2
commit e22579713a
1 changed files with 9 additions and 0 deletions
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9
sound/soc/generic/simple-card.c
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@ -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;
}