linux-kernel - Re: [PATCH] ARM: pxa: activate pinctrl for device-tree machines

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Date:	Mon, 11 Apr 2016 21:51:26 +0200
From:	Robert Jarzmik <robert.jarzmik@...e.fr>
To:	Linus Walleij <linus.walleij@...aro.org>
Cc:	Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	"linux-arm-kernel\@lists.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-kernel\@vger.kernel.org" <linux-kernel@...r.kernel.org>,
	Masahiro Yamada <yamada.masahiro@...ionext.com>
Subject: Re: [PATCH] ARM: pxa: activate pinctrl for device-tree machines

Linus Walleij <linus.walleij@...aro.org> writes:

> On Sat, Apr 2, 2016 at 8:56 PM, Robert Jarzmik <robert.jarzmik@...e.fr> wrote:
>
>> Pincontrol is not yet ready for all PXA platforms.
>> For example, a legacy platform, if PINCTRL was activated, will fail its
>> calls to gpio_request() or gpio_direction_output(), as the pinctrl
>> driver might not be available, such as for pxa25x and pxa3xx.
>>
>> As a step forward, activate pincontrol for all device-tree available
>> machines, ie. pxa27x device-tree based and pxa3xx device-tree based.
>>
>> If it appears later that pincontrol is also required for legacy
>> platforms and if the mfp->pinctrl conversion can be achieved, then
>> PINCTRL will be activated for the whole PXA architecture.
>>
>> Cc: Linus Walleij <linus.walleij@...aro.org>
>> Cc: Masahiro Yamada <yamada.masahiro@...ionext.com>
>> Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
>
> Acked-by: Linus Walleij <linus.walleij@...aro.org>
Thanks, queued to pxa/for-next.

Cheers.

-- 
Robert