From a5d93da13c8671f6453ae273cbf1d5c61b897a33 Mon Sep 17 00:00:00 2001 From: Bard Liao Date: Mon, 17 Oct 2016 19:27:16 +0800 Subject: [PATCH] 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 Signed-off-by: Mark Brown --- sound/soc/codecs/rt5670.c | 4 +++- sound/soc/codecs/rt5670.h | 1 + 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c index 49caf1393aeb..6caac92143d4 100644 --- a/sound/soc/codecs/rt5670.c +++ b/sound/soc/codecs/rt5670.c @@ -2889,6 +2889,9 @@ static int rt5670_i2c_probe(struct i2c_client *i2c, if (ret != 0) 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) regmap_update_bits(rt5670->regmap, RT5670_IN2, 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); regmap_update_bits(rt5670->regmap, RT5670_GPIO_CTRL2, RT5670_GP1_PF_MASK, RT5670_GP1_PF_OUT); - regmap_update_bits(rt5670->regmap, RT5670_DIG_MISC, 0x8, 0x8); } if (rt5670->pdata.jd_mode) { diff --git a/sound/soc/codecs/rt5670.h b/sound/soc/codecs/rt5670.h index 3f1b0f1df809..5ba485cae4e6 100644 --- a/sound/soc/codecs/rt5670.h +++ b/sound/soc/codecs/rt5670.h @@ -1914,6 +1914,7 @@ enum { #define RT5670_IF1_ADC1_IN2_SFT 11 #define RT5670_IF1_ADC2_IN1_SEL (0x1 << 10) #define RT5670_IF1_ADC2_IN1_SFT 10 +#define RT5670_MCLK_DET (0x1 << 3) /* General Control2 (0xfb) */ #define RT5670_RXDC_SRC_MASK (0x1 << 7) -- 2.11.0