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>

2 files changed, 7 insertions, 0 deletions

diff --git a/sound/soc/codecs/rt5660.c b/sound/soc/codecs/rt5660.c
index 9f0933ced804..76cf76a2e9b6 100644
--- a/sound/soc/codecs/rt5660.c
+++ b/sound/soc/codecs/rt5660.c
@@ -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);
diff --git a/sound/soc/codecs/rt5660.h b/sound/soc/codecs/rt5660.h
index 6cdb9269ec9e..bba18fb66b6f 100644
--- a/sound/soc/codecs/rt5660.h
+++ b/sound/soc/codecs/rt5660.h
@@ -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