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ASoC: rt5670: Enable MCLK detection 

There is a power saving mechanism in rt5670. 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 2016-10-17 19:27:16 +08:00 committed by Mark Brown
parent 1001354ca3
commit a5d93da13c
2 changed files with 4 additions and 1 deletions
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4
sound/soc/codecs/rt5670.c
View File

@ -2889,6 +2889,9 @@ static int rt5670_i2c_probe(struct i2c_client *i2c,
if (ret != 0) if (ret != 0)
dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret); dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);
regmap_update_bits(rt5670->regmap, RT5670_DIG_MISC,
RT5670_MCLK_DET, RT5670_MCLK_DET);
if (rt5670->pdata.in2_diff) if (rt5670->pdata.in2_diff)
regmap_update_bits(rt5670->regmap, RT5670_IN2, regmap_update_bits(rt5670->regmap, RT5670_IN2,
RT5670_IN_DF2, RT5670_IN_DF2); RT5670_IN_DF2, RT5670_IN_DF2);
@ -2903,7 +2906,6 @@ static int rt5670_i2c_probe(struct i2c_client *i2c,
RT5670_GP1_PIN_MASK, RT5670_GP1_PIN_IRQ); RT5670_GP1_PIN_MASK, RT5670_GP1_PIN_IRQ);
regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL2, regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL2,
RT5670_GP1_PF_MASK, RT5670_GP1_PF_OUT); RT5670_GP1_PF_MASK, RT5670_GP1_PF_OUT);
regmap_update_bits(rt5670->regmap, RT5670_DIG_MISC, 0x8, 0x8);
} }
if (rt5670->pdata.jd_mode) { if (rt5670->pdata.jd_mode) {

1
sound/soc/codecs/rt5670.h
View File

@ -1914,6 +1914,7 @@ enum {
#define RT5670_IF1_ADC1_IN2_SFT 11 #define RT5670_IF1_ADC1_IN2_SFT 11
#define RT5670_IF1_ADC2_IN1_SEL (0x1 << 10) #define RT5670_IF1_ADC2_IN1_SEL (0x1 << 10)
#define RT5670_IF1_ADC2_IN1_SFT 10 #define RT5670_IF1_ADC2_IN1_SFT 10
#define RT5670_MCLK_DET (0x1 << 3)
/* General Control2 (0xfb) */ /* General Control2 (0xfb) */
#define RT5670_RXDC_SRC_MASK (0x1 << 7) #define RT5670_RXDC_SRC_MASK (0x1 << 7)