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| author | Liam Girdwood | 2013-09-16 14:01:46 +0200 |
|---|---|---|
| committer | Mark Brown | 2013-09-17 01:57:37 +0200 |
| commit | e54cf76ba2c9ec071a68e98f2830226c0cac8086 (patch) | |
| tree | 05116aeef191b8d47406c1d46917e67b993d7f6b /sound/soc/soc-core.c | |
| parent | Linux 3.12-rc1 (diff) | |
| download | kernel-qcow2-linux-e54cf76ba2c9ec071a68e98f2830226c0cac8086.tar.gz kernel-qcow2-linux-e54cf76ba2c9ec071a68e98f2830226c0cac8086.tar.xz kernel-qcow2-linux-e54cf76ba2c9ec071a68e98f2830226c0cac8086.zip | |
ASoC: core: Add API for configuration of DAI BCLK ratio
Some codec drivers when running in slave mode require that BCLK to sample rate ratio
is explicitly set by the machine driver as it may not be exactly rate * frame size.
Extend the DAI API by adding :-
int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);
Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'sound/soc/soc-core.c')
| -rw-r--r-- | sound/soc/soc-core.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4d0561312f3b..31adad04222d 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3577,6 +3577,22 @@ int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source, EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll); /** + * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio. + * @dai: DAI + * @ratio Ratio of BCLK to Sample rate. + * + * Configures the DAI for a preset BCLK to sample rate ratio. + */ +int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio) +{ + if (dai->driver && dai->driver->ops->set_bclk_ratio) + return dai->driver->ops->set_bclk_ratio(dai, ratio); + else + return -EINVAL; +} +EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio); + +/** * snd_soc_dai_set_fmt - configure DAI hardware audio format. * @dai: DAI * @fmt: SND_SOC_DAIFMT_ format value. |