linux-kernel - Re: dream: glue for mmc controller

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Date:	Sun, 8 Nov 2009 18:14:45 -0800
From:	Arve Hjønnevåg <arve@...roid.com>
To:	Russell King - ARM Linux <linux@....linux.org.uk>
Cc:	Pavel Machek <pavel@....cz>, Ben Dooks <ben-linux@...ff.org>,
	Brian Swetland <swetland@...gle.com>,
	kernel list <linux-kernel@...r.kernel.org>,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>
Subject: Re: dream: glue for mmc controller

On Sun, Nov 8, 2009 at 1:10 AM, Russell King - ARM Linux
<linux@....linux.org.uk> wrote:
> On Sun, Nov 08, 2009 at 09:13:14AM +0100, Pavel Machek wrote:
>> > > +#include <asm/io.h>
>> > > +#include <asm/gpio.h>
>> > linux/gpio.h
>> > linux/io.h
>>
>> I got compile errors when trying to use linux/gpio.h:
>>
>> arch/arm/mach-msm/board-dream-gpio.c: In function
>> 'dream_gpio_configure':
>> arch/arm/mach-msm/board-dream-gpio.c:109: error: 'GPIOF_OUTPUT_LOW'
>> undeclared (first use in this function)
>
> This means it's abusing the gpio header files - which are intended for
> the generic GPIO support, but are being used for this platforms private
> non-generic GPIO based stuff.
>

It also means that CONFIG_GENERIC_GPIO is not set, so linux/gpio.h
stubbed out all the gpio functions.

-- 
Arve Hjønnevåg
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