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authorArnaud Pouliquen <arnaud.pouliquen@st.com>2015-06-05 11:19:06 +0300
committerMark Brown <broonie@kernel.org>2015-07-07 14:52:56 +0300
commite22579713ae1384a3dff545369cebe42b01370fa (patch)
tree8607e22d8f6a48eee7c07ad5508c19ae3cd2d785 /sound/soc/generic
parentd770e558e21961ad6cfdf0ff7df0eb5d7d4f0754 (diff)
downloadlinux-e22579713ae1384a3dff545369cebe42b01370fa.tar.xz
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: Arnaud Pouliquen <arnaud.pouliquen@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/generic')
-rw-r--r--sound/soc/generic/simple-card.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index d5554939146e..3ff76d419436 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -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;
}