diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index 66d6106a2067..204bed37e82d 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -28,6 +28,7 @@ static inline int gpio_is_valid(int number)
 	return ((unsigned)number) < ARCH_NR_GPIOS;
 }
 
+struct device;
 struct seq_file;
 struct module;
 
@@ -181,6 +182,8 @@ static inline void gpio_set_value_cansleep(unsigned gpio, int value)
 
 #ifndef CONFIG_GPIO_SYSFS
 
+struct device;
+
 /* sysfs support is only available with gpiolib, where it's optional */
 
 static inline int gpio_export(unsigned gpio, bool direction_may_change)