ASoC: rt5645: Fix lost pin setting for DMIC1

I2S2_DAC pin can be used for I2S or GPIO. We should set it as GPIO
if we use GPIO5 as DMIC1 data pin.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5645.c

@@ -3341,6 +3341,8 @@ static int rt5645_i2c_probe(struct i2c_client *i2c,
 		break;
 
 	case RT5645_DMIC_DATA_GPIO5:
+		regmap_update_bits(rt5645->regmap, RT5645_GPIO_CTRL1,
+			RT5645_I2S2_DAC_PIN_MASK, RT5645_I2S2_DAC_PIN_GPIO);
 		regmap_update_bits(rt5645->regmap, RT5645_DMIC_CTRL1,
 			RT5645_DMIC_1_DP_MASK, RT5645_DMIC_1_DP_GPIO5);
 		regmap_update_bits(rt5645->regmap, RT5645_GPIO_CTRL1,

sound/soc/codecs/rt5645.h

@@ -1693,6 +1693,10 @@
 #define RT5645_GP6_PIN_SFT			6
 #define RT5645_GP6_PIN_GPIO6			(0x0 << 6)
 #define RT5645_GP6_PIN_DMIC2_SDA		(0x1 << 6)
+#define RT5645_I2S2_DAC_PIN_MASK		(0x1 << 4)
+#define RT5645_I2S2_DAC_PIN_SFT			4
+#define RT5645_I2S2_DAC_PIN_I2S			(0x0 << 4)
+#define RT5645_I2S2_DAC_PIN_GPIO		(0x1 << 4)
 #define RT5645_GP8_PIN_MASK			(0x1 << 3)
 #define RT5645_GP8_PIN_SFT			3
 #define RT5645_GP8_PIN_GPIO8			(0x0 << 3)