linux-kernel - Re: [PATCH 0/4] gpio: introduce descriptor-based interface

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Message-ID: <50F7E83E.8000105@uclinux.org>
Date:	Thu, 17 Jan 2013 22:02:06 +1000
From:	Greg Ungerer <gerg@...inux.org>
To:	Linus Walleij <linus.walleij@...aro.org>
CC:	Arnd Bergmann <arnd@...db.de>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Alex Courbot <acourbot@...dia.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Guenter Roeck <linux@...ck-us.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-arch <linux-arch@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	Steven King <sfking@...dc.com>
Subject: Re: [PATCH 0/4] gpio: introduce descriptor-based interface

Hi Linus,

(My gerg@...pgear.com email no longer gets to me, gerg@...inux.org is
the best direct email for me now).

On 01/17/2013 09:15 PM, Linus Walleij wrote:
> On Thu, Jan 10, 2013 at 11:08 AM, Arnd Bergmann <arnd@...db.de> wrote:
> 
>> I've tried to find platforms that don't yet use GPIOLIB and fortunately
>> there are very few left:
>>
>> I found two that provide the generic gpio interfaces when gpiolib
>> is disabled, but use gpiolib otherwise for the same hardware,
>> arch/m68k/include/asm/mcfgpio.h and arch/blackfin/include/asm/gpio.h.
>> I would assume that we can simply remove the non-gpiolib shortcut
>> here at cost of a small overhead.
> 
> Geert/Greg: interested in looking into this issue?
> 
> The GPIO maintainers want to get rid of non-gpiolib platforms.

Steven King did most of the ColdFire GPIO work (CC'ed on this).
Steven: are you happy to drop the non-gpiolib support?

Regards
Greg

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