[alsa-devel] [PATCH 3/3] ASoC: codecs: adau1701: add support for pin muxing

[Lars-Peter Clausen]

On 06/21/2013 09:28 AM, Daniel Mack wrote:
> On 21.06.2013 09:24, Lars-Peter Clausen wrote:
>> On 06/20/2013 07:29 PM, Daniel Mack wrote:
>>> [...]
>>>  static int adau1701_probe(struct snd_soc_codec *codec)
>>>  {
>>> -	int ret;
>>> +	int ret, i;
>>> +	unsigned int val;
>>>  	struct i2c_client *client = to_i2c_client(codec->dev);
>>>  	struct adau1701 *adau1701 = snd_soc_codec_get_drvdata(codec);
>>>  
>>> @@ -576,6 +584,19 @@ static int adau1701_probe(struct snd_soc_codec *codec)
>>>  	regmap_write(adau1701->regmap, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT);
>>>  	regmap_write(adau1701->regmap, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR);
>>>  
>>> +	/* set up pin config */
>>> +	val = 0;
>>> +	for (i = 0; i < 6; i++)
>>> +		val |= adau1701->pin_config[i] << (i * 4);
>>> +
>>> +	regmap_write(adau1701->regmap, ADAU1701_PINCONF_0, val);
>>> +
>>> +	val = 0;
>>> +	for (i = 0; i < 6; i++)
>>> +		val |= adau1701->pin_config[i + 6] << (i * 4);
>>> +
>>> +	regmap_write(adau1701->regmap, ADAU1701_PINCONF_1, val);
>>
>> Will the config survive a reset?
>>
> 
> That will be synced back via regcache_sync(), no?
> 
Oh, sorry I missed the regcache_sync(), but you still need to call
regcache_mark_dirty() first, otherwise regcache_sync() won't do anything.

- Lars