[PATCH 1/2] ARM: ixp4xx: fix compilation, add gpiolib support

[Arnaud Patard (Rtp)]

Mikael Pettersson <mikpe at it.uu.se> writes:

> Marc Kleine-Budde writes:
>  > From: Imre Kaloz <kaloz at openwrt.org>
>  > 
>  > The problem was introduced with commit:
>  > "eb9ae7f gpio: fix build error in include/asm-generic/gpio.h"
>  > 
>  > This patch adds gpiolib support for the IXP4xx platform, which fixes the
>  > compilation of several ixp4xx platforms, e.g.:
>  > 
>  > In file included from arch/arm/mach-ixp4xx/include/mach/gpio.h:72,
>  >                  from /home/frogger/projects/server/linux/arch/arm/include/asm/gpio.h:9,
>  >                  from include/linux/gpio.h:30,
>  >                  from arch/arm/mach-ixp4xx/nslu2-setup.c:19:
>  > include/asm-generic/gpio.h: In function 'gpio_get_value_cansleep':
>  > include/asm-generic/gpio.h:218: error: implicit declaration of function '__gpio_get_value'
>  > include/asm-generic/gpio.h: In function 'gpio_set_value_cansleep':
>  > include/asm-generic/gpio.h:224: error: implicit declaration of function '__gpio_set_value'
>
> This fix is needed for 3.2 too, right?  I got the same errors when
> updating my (out-of-tree) ixp4xx/ds101 platform support to the 3.2 kernel
> a few days ago.

fwiw, it's even needed for 3.1. We've added it in the debian kernel when it
was sent to the linux-arm-kernel ml and it was for 3.1.

Arnaud