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 <[email protected]>
> Cc: Tomasz Figa <[email protected]>
> ---
> 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
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