linux-kernel - Re: [PATCH] ASoC: wm9713: add gpio chip

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Date:	Wed, 04 Nov 2015 20:35:18 +0100
From:	Robert Jarzmik <robert.jarzmik@...e.fr>
To:	Charles Keepax <ckeepax@...nsource.wolfsonmicro.com>,
	Lee Jones <lee.jones@...aro.org>,
	Mark Brown <broonie@...nel.org>
Cc:	Liam Girdwood <lgirdwood@...il.com>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	<patches@...nsource.wolfsonmicro.com>,
	<alsa-devel@...a-project.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ASoC: wm9713: add gpio chip

Charles Keepax <ckeepax@...nsource.wolfsonmicro.com> writes:

> On Wed, Nov 04, 2015 at 06:12:44PM +0100, Robert Jarzmik wrote:
>> The Wolfson WM9713 provides 8 GPIOs. If the gpiolib is compiled in the
>> kernel, declare a gpio chip.
>> 
>> Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
>> ---
>
> You should probably make a seperate driver within GPIO for this
> and then tie the two together, using an MFD. I appreciate that is
> more work but it is likely a nicer solution overall.

I'd like to first have a confirmation from :
 - Mark (Brown)
 - and Lee (Jones)

The confirmation I'm looking for states that :
 - the wm9713 should have a part in the mfd tree
 - the gpio part should be in drivers/gpio
 - the sound soc codecs will remain as is
 - if the future driver/mfd/wm9713.c is technically sound, it will be accepted

I remember at least one example where the MFD approach was rejected from mfd
tree for pxa gpios, so I won't work unless I have a confirmation from both
maintainers.

Thanks.

-- 
Robert
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