diff --git a/arch/arm/mach-s3c2410/include/mach/gpio.h b/arch/arm/mach-s3c2410/include/mach/gpio.h
index e0349af8a483f29be67a42ff302f155670792b94..00476a573bbe8c43aabce34e3f4ae3860da40ec1 100644
--- a/arch/arm/mach-s3c2410/include/mach/gpio.h
+++ b/arch/arm/mach-s3c2410/include/mach/gpio.h
@@ -14,6 +14,7 @@
 #define gpio_get_value	__gpio_get_value
 #define gpio_set_value	__gpio_set_value
 #define gpio_cansleep	__gpio_cansleep
+#define gpio_to_irq	__gpio_to_irq
 
 /* some boards require extra gpio capacity to support external
  * devices that need GPIO.