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ASoC: rt5514: Add the MCLK handling

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The patch adds the control of MCLK that depends on the status of DAPM.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Oder Chiou
2016-06-17 11:02:24 +08:00
committed by Mark Brown
parent 1a695a905c
commit c9506bb84b
3 changed files with 40 additions and 0 deletions
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32
sound/soc/codecs/rt5514.c
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@@ -799,10 +799,41 @@ static int rt5514_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
return 0;
}
static int rt5514_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
int ret;
switch (level) {
case SND_SOC_BIAS_PREPARE:
if (IS_ERR(rt5514->mclk))
break;
if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_ON) {
clk_disable_unprepare(rt5514->mclk);
} else {
ret = clk_prepare_enable(rt5514->mclk);
if (ret)
return ret;
}
break;
default:
break;
}
return 0;
}
static int rt5514_probe(struct snd_soc_codec *codec)
{
struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
rt5514->mclk = devm_clk_get(codec->dev, "mclk");
if (PTR_ERR(rt5514->mclk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
rt5514->codec = codec;
return 0;
@@ -858,6 +889,7 @@ struct snd_soc_dai_driver rt5514_dai[] = {
static struct snd_soc_codec_driver soc_codec_dev_rt5514 = {
.probe = rt5514_probe,
.idle_bias_off = true,
.set_bias_level = rt5514_set_bias_level,
.controls = rt5514_snd_controls,
.num_controls = ARRAY_SIZE(rt5514_snd_controls),
.dapm_widgets = rt5514_dapm_widgets,