diff --git a/include/asm-arm/arch-omap/gpioexpander.h b/include/asm-arm/arch-omap/gpioexpander.h
index 7a43b0a912e4..4eed1f80e2fb 100644
--- a/include/asm-arm/arch-omap/gpioexpander.h
+++ b/include/asm-arm/arch-omap/gpioexpander.h
@@ -18,7 +18,18 @@
 
 /* Function Prototypes for GPIO Expander functions */
 
+#ifdef CONFIG_GPIOEXPANDER_OMAP
 int read_gpio_expa(u8 *, int);
 int write_gpio_expa(u8 , int);
+#else
+static inline int read_gpio_expa(u8 *val, int addr)
+{
+	return 0;
+}
+static inline int write_gpio_expa(u8 val, int addr)
+{
+	return 0;
+}
+#endif
 
 #endif /* __ASM_ARCH_OMAP_GPIOEXPANDER_H */