[PATCH v2] mtd/maps: gpio-addr-flash: new driver for GPIO assisted flash addressing

[David Woodhouse]

On Wed, 2009-06-03 at 08:51 -0400, Mike Frysinger wrote:
> This driver lets people use GPIO's for additional address lines in case
> their processor does not have enough address lines already.
> 
> Signed-off-by: Mike Frysinger <vapier at gentoo.org>
> Signed-off-by: Bryan Wu <cooloney at kernel.org>

In file included from /home/dwmw2/git/mtd-2.6/arch/x86/include/asm/gpio.h:20,
                 from drivers/mtd/maps/gpio-addr-flash.c:27:
include/asm-generic/gpio.h: In function ‘gpio_get_value_cansleep’:
include/asm-generic/gpio.h:168: error: implicit declaration of function ‘gpio_get_value’
include/asm-generic/gpio.h: In function ‘gpio_set_value_cansleep’:
include/asm-generic/gpio.h:174: error: implicit declaration of function ‘gpio_set_value’
drivers/mtd/maps/gpio-addr-flash.c: In function ‘gpio_flash_probe’:
drivers/mtd/maps/gpio-addr-flash.c:232: error: implicit declaration of function ‘gpio_request’
drivers/mtd/maps/gpio-addr-flash.c:236: error: implicit declaration of function ‘gpio_free’
drivers/mtd/maps/gpio-addr-flash.c:240: error: implicit declaration of function ‘gpio_direction_output’
make[2]: *** [drivers/mtd/maps/gpio-addr-flash.o] Error 1
make[1]: *** [drivers/mtd/maps] Error 2
make: *** [_module_drivers/mtd] Error 2

Setting CONFIG_GPIOLIB seems to fix it -- but we can't make it depend on
that, can we? Maybe it should be GPIOLIB || !GENERIC_GPIO?

-- 
David Woodhouse                            Open Source Technology Centre
David.Woodhouse at intel.com                              Intel Corporation