[alsa-devel] [PATCH 2/3] ASoC: core: Set the default I/O up try regmap.

Lars-Peter Clausen lars at metafoo.de
Fri Feb 28 08:15:19 CET 2014

On 02/28/2014 08:08 AM, Li.Xiubo at freescale.com wrote:
>>>>>> Subject: Re: [PATCH 2/3] ASoC: core: Set the default I/O up try regmap.
>>>>>> On Fri, Feb 28, 2014 at 04:00:38AM +0000, Li.Xiubo at freescale.com wrote:
>>>>>>> I'll send another patches to applied to use this for another CODEC
>> drivers.
>>>>>>> And there almost 80 files, Should I send them in one patch or split them
>>>>>> into
>>>>>>> individual patch for each CODEC driver ?
>>>>>> I'd suggest doing one patch that covers the boring drivers where the
>>>>>> first thing they do is call set_cache_io() but split out the others into
>>>>>> one patch per driver since the need more examination.
>>>>> Got it.
>>>> Btw. be careful, just removing the set_cache_io() call will not work for
>> all
>>>> drivers. There are some MFD child devices which use regmap from the parent
>>>> device. So dev_get_regmap() will return NULL for those.
>>> @Lars,
>>> Do you mean the CODEC drivers like wm5110 and wm8997 ?
>> Yes.
> I only found these two CODEC drivers using MFD who would get its parent's regmap.
> Has I missed some ?

A quick grep reveals:
mc13783.c:	codec->control_data = dev_get_regmap(codec->dev->parent, NULL);
si476x.c:	codec->control_data = dev_get_regmap(codec->dev->parent, NULL);
wm5102.c:	codec->control_data = priv->core.arizona->regmap;
wm5110.c:	codec->control_data = priv->core.arizona->regmap;
wm8997.c:	codec->control_data = priv->core.arizona->regmap;

But there might be more.

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