[ARM] S3C24XX: Add extra GPIOs via Kconfig

[firefly-linux-kernel-4.4.55.git] / arch / arm / mach-s3c2410 / include / mach / gpio.h

diff --git a/arch/arm/mach-s3c2410/include/mach/gpio.h b/arch/arm/mach-s3c2410/include/mach/gpio.h
index 3b52b86498a6a4060cccaee1f720b61bb5a02674..e0349af8a483f29be67a42ff302f155670792b94 100644 (file)
--- a/arch/arm/mach-s3c2410/include/mach/gpio.h
+++ b/arch/arm/mach-s3c2410/include/mach/gpio.h
@@ -15,4 +15,10 @@
 #define gpio_set_value __gpio_set_value
 #define gpio_cansleep  __gpio_cansleep
 
+/* some boards require extra gpio capacity to support external
+ * devices that need GPIO.
+ */
+
+#define ARCH_NR_GPIOS  (256 + CONFIG_S3C24XX_GPIO_EXTRA)
+
 #include <asm-generic/gpio.h>