linux-kernel - Re: [PATCH 1/3] ASoC: jack: Add a jack detect callback via codec

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Date:	Mon, 18 Apr 2016 17:43:51 +0800
From:	Xing Zheng <zhengxing@...k-chips.com>
To:	Mark Brown <broonie@...nel.org>
CC:	linux-rockchip@...ts.infradead.org, heiko@...ech.de,
	Adam.Thomson@...semi.com, sugar.zhang@...k-chips.com,
	jay.xu@...k-chips.com, Liam Girdwood <lgirdwood@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] ASoC: jack: Add a jack detect callback via codec

Hi Mark,

On 2016年04月18日 17:22, Mark Brown wrote:
> On Mon, Apr 18, 2016 at 04:17:30PM +0800, Xing Zheng wrote:
>> This patch add a callback when a codec have the jack detect feature.
>> +void snd_soc_jack_codec_detect(struct snd_soc_codec *codec,
>> +				struct snd_soc_jack *jack)
>> +{
>> +	if (codec&&  codec->driver&&  codec->driver->detect_jack)
>> +		codec->driver->detect_jack(codec, jack);
>> +}
>> +EXPORT_SYMBOL_GPL(snd_soc_jack_codec_detect);
> I've no idea what this is supposed to do sorry, you need a much better
> changelog and probably also a restructuring of the code.  This says it
> is adding a callback but it doesn't do that, it adds an export of a
> function that calls an operation in a driver with no explanation.
Yes, sorry to forgot to add description for this API.

The patch_1/3 add an export of a function that calls the _detect_jack_ 
function
when a codec supports jack detection and fill the _detect_jack_ function 
in the
struct snd_soc_codec_driver.

I will clean up the commit message.

Thanks.

-- 
- Xing Zheng