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ASoC: rt5660: enable MCLK detection 

There is a power saving mechanism in rt5660. It will turn off some
unused power when MCLK is not present. We call that "MCLK detection"
and it should be enabled by default.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Bard Liao 2016-10-20 10:13:44 +08:00 committed by Mark Brown
parent 1001354ca3
commit d01580c394
2 changed files with 7 additions and 0 deletions
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4
sound/soc/codecs/rt5660.c
View File

@ -1311,6 +1311,10 @@ static int rt5660_i2c_probe(struct i2c_client *i2c,
if (ret != 0)
dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);
regmap_update_bits(rt5660->regmap, RT5660_GEN_CTRL1,
RT5660_AUTO_DIS_AMP | RT5660_MCLK_DET | RT5660_POW_CLKDET,
RT5660_AUTO_DIS_AMP | RT5660_MCLK_DET | RT5660_POW_CLKDET);
if (rt5660->pdata.dmic1_data_pin) {
regmap_update_bits(rt5660->regmap, RT5660_GPIO_CTRL1,
RT5660_GP1_PIN_MASK, RT5660_GP1_PIN_DMIC1_SCL);

3
sound/soc/codecs/rt5660.h
View File

@ -810,6 +810,9 @@
/* General Control 1 (0xfa) */
#define RT5660_PWR_VREF_HP (0x1 << 11)
#define RT5660_PWR_VREF_HP_SFT 11
#define RT5660_AUTO_DIS_AMP (0x1 << 6)
#define RT5660_MCLK_DET (0x1 << 5)
#define RT5660_POW_CLKDET (0x1 << 1)
#define RT5660_DIG_GATE_CTRL (0x1)
#define RT5660_DIG_GATE_CTRL_SFT 0