Heiko,
å¨ 2015å¹´04æ08æ¥ 17:25, Heiko Stübner åé:
> Hi Caesar,
>
> Am Mittwoch, 8. April 2015, 16:52:08 schrieb Caesar Wang:
>> 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 at rock-chips.com>
>> Signed-off-by: zhengxing <zhengxing at rock-chips.com>
>> Signed-off-by: Caesar Wang <wxt at rock-chips.com>
>>
>> Serien-cc: linux-kernel at vger.kernel.org
>> Serien-cc: devicetree at vger.kernel.org
>> Serien-cc: dianders at chromium.org
>>
>> ---
>>
>> sound/soc/codecs/max98090.c | 17 +++++++++++++++++
>> 1 file changed, 17 insertions(+)
>>
>> diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c
>> index b112b1c..066954a0 100644
>> --- a/sound/soc/codecs/max98090.c
>> +++ b/sound/soc/codecs/max98090.c
>> @@ -2611,6 +2611,22 @@ static int max98090_i2c_remove(struct i2c_client
>> *client) return 0;
>> }
>>
>> +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");
> is this dev_info really necessary? dev_dbg might be better, or leave it out
> completely, as it doesn't really provide any additional benefit.
>
As Mark suggestion, I will remove it.
>> +
>> + /* Enable volume smoothing, disable zero cross. This will cause
>> + * a quick 40ms ramp to mute on shutdown.
>> + */
> Comment style is off ... should be
>
> /*
> * Enable volume smoothing, disable zero cross. This will cause
> * a quick 40ms ramp to mute on shutdown.
> */
>
Done
>> + regmap_write(max98090->regmap,
>> + M98090_REG_LEVEL_CONTROL, M98090_VSENN_MASK);
>> + regmap_write(max98090->regmap,
>> + M98090_REG_DEVICE_SHUTDOWN, 0x00);
>> + msleep(40);
>> +}
>> +
>> #ifdef CONFIG_PM
>> static int max98090_runtime_resume(struct device *dev)
>> {
>> @@ -2697,6 +2713,7 @@ static struct i2c_driver max98090_i2c_driver = {
>> },
>> .probe = max98090_i2c_probe,
>> .remove = max98090_i2c_remove,
>> + .shutdown = max98090_i2c_shutdown,
>> .id_table = max98090_i2c_id,
>> };
>
>
>
--
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¾ Caesar Wang
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