[PATCH] ASoC: max98090: add shutdown callback for max98090

Caesar Wang wxt at rock-chips.com
Wed Apr 8 03:15:28 PDT 2015


在 2015年04月08日 17:50, Mark Brown 写道:
> On Wed, Apr 08, 2015 at 04:52:08PM +0800, Caesar Wang wrote:
>> +static void max98090_i2c_shutdown(struct i2c_client *i2c)
>> +{
>> +	struct max98090_priv *max98090 = dev_get_drvdata(&i2c->dev);
>> +
>> +	dev_info(&i2c->dev, "shut down device\n");
> Remove this, it's adding noise.

>> +
>> +	/* Enable volume smoothing, disable zero cross.  This will cause
>> +	 * a quick 40ms ramp to mute on shutdown.
>> +	 */
>> +	regmap_write(max98090->regmap,
>> +	regmap_write(max98090->regmap,
>> +		M98090_REG_DEVICE_SHUTDOWN, 0x00);
>> +	msleep(40);
>> +}
> This is OK but equivalent code should be being added to the driver
> remove path as the same thing should be happening there.
Yeah.I will fix it in v2 patch.


王晓腾    Caesar Wang
系统产品三部   Product R&D Dept.III
福州瑞芯微电子有限公司 Fuzhou Rockchip Electronics Co.Ltd
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