[PATCH 1/1] ARM: EXYNOS: Update CONFIG_ARCH_NR_GPIO for Exynos

[Kukjin Kim]

Sachin Kamat wrote:
> 
> With the recent cleanup in Exynos platform code notably commits
> 17859bec ("ARM: EXYNOS: Do not select legacy Kconfig symbols any
> more") and b9222210 ("ARM: EXYNOS: Remove mach/gpio.h"), the definition
> of ARCH_NR_GPIOS got removed. This started causing problems on SoCs like
> Exynos4412 which have more (285) than the default number of GPIOs (255).
> Thus define this number in Kconfig file. Without this patch we get the
> following errors during boot:
> 
> gpiochip_add: gpios 251..258 (gpv0) failed to register
> samsung-pinctrl 106e0000.pinctrl: failed to register gpio_chip gpv0,
> error code: -22
> samsung-pinctrl: probe of 106e0000.pinctrl failed with error -22
> 
> Signed-off-by: Sachin Kamat <sachin.kamat at linaro.org>
> Cc: Tomasz Figa <t.figa at samsung.com>
> ---
> Based on Kukjin's for-next tree.
> ---
>  arch/arm/Kconfig |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
> index ddf2667..380a53b 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -1578,6 +1578,7 @@ config ARCH_NR_GPIO
>  	default 512 if SOC_OMAP5
>  	default 392 if ARCH_U8500
>  	default 352 if ARCH_VT8500
> +	default 288 if ARCH_EXYNOS
>  	default 288 if ARCH_SUNXI
>  	default 264 if MACH_H4700
>  	default 0
> --
> 1.7.9.5

Hmm, BTW, I'm wondering why it is 288 not 285 or other specific number...

Thanks,
- Kukjin