diff mbox

ASoC: rt5670: Enable MCLK detection

Message ID 1476703636-32057-1-git-send-email-bardliao@realtek.com (mailing list archive)
State Accepted
Commit a5d93da13c8671f6453ae273cbf1d5c61b897a33
Headers show

Commit Message

Bard Liao Oct. 17, 2016, 11:27 a.m. UTC 
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>
---
 sound/soc/codecs/rt5670.c | 4 +++-
 sound/soc/codecs/rt5670.h | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)
diff mbox

Patch

diff --git a/sound/soc/codecs/rt5670.c b/sound/soc/codecs/rt5670.c
index 49caf13..6caac92 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 3f1b0f1..5ba485c 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)