ASoC: rt5514: Add the MCLK handling
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>
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@ -8,6 +8,11 @@ Required properties:
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- reg : The I2C address of the device.
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Optional properties:
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- clocks: The phandle of the master clock to the CODEC
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- clock-names: Should be "mclk"
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Pins on the device (for linking into audio routes) for RT5514:
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* DMIC1L
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@ -799,10 +799,41 @@ static int rt5514_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
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return 0;
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}
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static int rt5514_set_bias_level(struct snd_soc_codec *codec,
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enum snd_soc_bias_level level)
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{
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struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
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int ret;
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switch (level) {
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case SND_SOC_BIAS_PREPARE:
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if (IS_ERR(rt5514->mclk))
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break;
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if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_ON) {
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clk_disable_unprepare(rt5514->mclk);
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} else {
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ret = clk_prepare_enable(rt5514->mclk);
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if (ret)
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return ret;
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}
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break;
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default:
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break;
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}
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return 0;
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}
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static int rt5514_probe(struct snd_soc_codec *codec)
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{
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struct rt5514_priv *rt5514 = snd_soc_codec_get_drvdata(codec);
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rt5514->mclk = devm_clk_get(codec->dev, "mclk");
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if (PTR_ERR(rt5514->mclk) == -EPROBE_DEFER)
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return -EPROBE_DEFER;
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rt5514->codec = codec;
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return 0;
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@ -858,6 +889,7 @@ struct snd_soc_dai_driver rt5514_dai[] = {
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static struct snd_soc_codec_driver soc_codec_dev_rt5514 = {
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.probe = rt5514_probe,
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.idle_bias_off = true,
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.set_bias_level = rt5514_set_bias_level,
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.controls = rt5514_snd_controls,
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.num_controls = ARRAY_SIZE(rt5514_snd_controls),
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.dapm_widgets = rt5514_dapm_widgets,
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@ -12,6 +12,8 @@
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#ifndef __RT5514_H__
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#define __RT5514_H__
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#include <linux/clk.h>
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#define RT5514_DEVICE_ID 0x10ec5514
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#define RT5514_RESET 0x2000
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@ -240,6 +242,7 @@ enum {
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struct rt5514_priv {
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struct snd_soc_codec *codec;
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struct regmap *i2c_regmap, *regmap;
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struct clk *mclk;
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int sysclk;
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int sysclk_src;
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int lrck;
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