ARM: SAMSUNG: Add config option for number of additional GPIO pins.
This patch adds a configuration option for specifing the number
of additional GPIO pins to be used in addition to the GPIO pins
supported onchip.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 900b463..faec4b8 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -66,6 +66,14 @@
help
Internal configuration to enable the correct GPIO pull helper
+config SAMSUNG_GPIO_EXTRA
+ int "Number of additional GPIO pins"
+ default 0
+ help
+ Use additional GPIO space in addition to the GPIO's the SOC
+ provides. This allows expanding the GPIO space for use with
+ GPIO expanders.
+
# device definitions to compile in
config S3C_DEV_HSMMC