linux-kernel - Re: [PATCH] pinctrl: rockchip: Implement .request() and .free() callbacks on the GPIO chips

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Message-ID: <CAFRkauBDLBu6BEooAnZTAzYUgrBwTLPmRoLejzLEHDzikU5JFA@mail.gmail.com>
Date:	Wed, 28 Aug 2013 21:06:58 +0800
From:	Axel Lin <axel.lin@...ics.com>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Heiko Stübner <heiko@...ech.de>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] pinctrl: rockchip: Implement .request() and .free()
 callbacks on the GPIO chips

2013/8/28 Linus Walleij <linus.walleij@...aro.org>:
> On Tue, Aug 27, 2013 at 4:30 PM, Axel Lin <axel.lin@...ics.com> wrote:
>
>> Implement .request() and .free() callbacks on the GPIO chips to inform pinctrl
>> when a GPIO is requested or freed.
>>
>> Signed-off-by: Axel Lin <axel.lin@...ics.com>
>> ---
>
> Ohhh that will have semantic effects so really need to wait
> for Heiko's opinion on this one.
>
> BTW: Axel are you working with this system?

No, I don't have a rockchip platform.

But I'm writting a pinctrl driver for an ARM SoC.
So I read a couple pinctrl driver source code for reference.

Regards,
Axel
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