Unverified Commit 397ff024 authored by Steve Lee's avatar Steve Lee Committed by Mark Brown
Browse files

ASoC: max98390: Add reset gpio control 



Add reset gpio control to support RESET PIN connected to gpio.

Signed-off-by: default avatarSteve Lee <steve.lee.analog@gmail.com>
Acked-by: default avatarNuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20220420044900.2989-1-steve.lee.analog@gmail.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent b3598fe6

sound/soc/codecs/max98390.c

+12 −0
Original line number Diff line number Diff line
@@ -1021,6 +1021,7 @@ static int max98390_i2c_probe(struct i2c_client *i2c) 


	struct max98390_priv *max98390 = NULL;

	struct i2c_adapter *adapter = i2c->adapter;

	struct gpio_desc *reset_gpio;



	ret = i2c_check_functionality(adapter,

		I2C_FUNC_SMBUS_BYTE
@@ -1072,6 +1073,17 @@ static int max98390_i2c_probe(struct i2c_client *i2c) 
		return ret;

	}



	reset_gpio = devm_gpiod_get_optional(&i2c->dev,

					     "reset", GPIOD_OUT_HIGH);



	/* Power on device */

	if (reset_gpio) {

		usleep_range(1000, 2000);

		/* bring out of reset */

		gpiod_set_value_cansleep(reset_gpio, 0);

		usleep_range(1000, 2000);

	}



	/* Check Revision ID */

	ret = regmap_read(max98390->regmap,

		MAX98390_R24FF_REV_ID, &reg);