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: jay.xu <xjq@rock-chips.com> Signed-off-by: zhengxing <zhengxing@rock-chips.com> Signed-off-by: Caesar Wang <wxt@rock-chips.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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@ -2605,8 +2605,24 @@ err_enable:
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return ret;
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}
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static void max98090_i2c_shutdown(struct i2c_client *i2c)
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{
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struct max98090_priv *max98090 = dev_get_drvdata(&i2c->dev);
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/*
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* Enable volume smoothing, disable zero cross. This will cause
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* a quick 40ms ramp to mute on shutdown.
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*/
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regmap_write(max98090->regmap,
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M98090_REG_LEVEL_CONTROL, M98090_VSENN_MASK);
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regmap_write(max98090->regmap,
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M98090_REG_DEVICE_SHUTDOWN, 0x00);
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msleep(40);
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}
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static int max98090_i2c_remove(struct i2c_client *client)
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{
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max98090_i2c_shutdown(client);
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snd_soc_unregister_codec(&client->dev);
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return 0;
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}
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@ -2696,6 +2712,7 @@ static struct i2c_driver max98090_i2c_driver = {
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.acpi_match_table = ACPI_PTR(max98090_acpi_match),
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},
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.probe = max98090_i2c_probe,
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.shutdown = max98090_i2c_shutdown,
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.remove = max98090_i2c_remove,
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.id_table = max98090_i2c_id,
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};
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