Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c6b424fe authored by Caesar Wang's avatar Caesar Wang Committed by Mark Brown
Browse files

ASoC: max98090: add shutdown callback for max98090 



To fix pop noise when shutdown,the pop noise during shutdown
is the pmic cutoff power of codec without any notice.

Signed-off-by: default avatarjay.xu <xjq@rock-chips.com>
Signed-off-by: default avatarzhengxing <zhengxing@rock-chips.com>
Signed-off-by: default avatarCaesar Wang <wxt@rock-chips.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c517d838

sound/soc/codecs/max98090.c

+17 −0
Original line number Diff line number Diff line
@@ -2605,8 +2605,24 @@ static int max98090_i2c_probe(struct i2c_client *i2c, 
	return ret;

}



static void max98090_i2c_shutdown(struct i2c_client *i2c)

{

	struct max98090_priv *max98090 = dev_get_drvdata(&i2c->dev);



	/*

	 * Enable volume smoothing, disable zero cross.  This will cause

	 * a quick 40ms ramp to mute on shutdown.

	 */

	regmap_write(max98090->regmap,

		M98090_REG_LEVEL_CONTROL, M98090_VSENN_MASK);

	regmap_write(max98090->regmap,

		M98090_REG_DEVICE_SHUTDOWN, 0x00);

	msleep(40);

}



static int max98090_i2c_remove(struct i2c_client *client)

{

	max98090_i2c_shutdown(client);

	snd_soc_unregister_codec(&client->dev);

	return 0;

}
@@ -2696,6 +2712,7 @@ static struct i2c_driver max98090_i2c_driver = { 
		.acpi_match_table = ACPI_PTR(max98090_acpi_match),

	},

	.probe  = max98090_i2c_probe,

	.shutdown = max98090_i2c_shutdown,

	.remove = max98090_i2c_remove,

	.id_table = max98090_i2c_id,

};