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

[Sachin Kamat]

On 22 July 2013 07:18, Kukjin Kim <kgene.kim at samsung.com> wrote:
> 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...

I wasn't really sure if we can have any number there. I chose the
closest one (288) which was already used by other platform.
If there is no problem to use 285 itself then I can resend with that
number. Please let me know.


-- 
With warm regards,
Sachin