From mboxrd@z Thu Jan 1 00:00:00 1970 From: kgene@kernel.org (Kukjin Kim) Date: Wed, 24 Jul 2013 15:20:57 +0900 Subject: [PATCH v3 1/1] ARM: EXYNOS: Update CONFIG_ARCH_NR_GPIO for Exynos In-Reply-To: <1374636693-32336-1-git-send-email-sachin.kamat@linaro.org> References: <1374636693-32336-1-git-send-email-sachin.kamat@linaro.org> Message-ID: <0e4301ce8835$f5bef5e0$e13ce1a0$@org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 than the default number of GPIOs. Thus define > this number in KConfig file which takes care of current SoC requirements > and provides scope for GPIO expanders. 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 > Cc: Tomasz Figa > --- > Changes since v2: > Changed the default number to 512 to accomodate GPIO exapnders. > --- > arch/arm/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig > index ccc388d..b3c4fa4 100644 > --- a/arch/arm/Kconfig > +++ b/arch/arm/Kconfig > @@ -1601,6 +1601,7 @@ config ARCH_NR_GPIO > int > default 1024 if ARCH_SHMOBILE || ARCH_TEGRA > default 512 if SOC_OMAP5 > + default 512 if ARCH_EXYNOS > default 512 if ARCH_KEYSTONE + default 512 if ARCH_EXYNOS || ARCH_KEYSTONE || SOC_OMAP5 ? Thanks, Kukjin > default 392 if ARCH_U8500 > default 352 if ARCH_VT8500 > -- > 1.7.9.5