--- /dev/null
+--- a/include/linux/gpio_keys.h
++++ b/include/linux/gpio_keys.h
+@@ -15,7 +15,12 @@ struct gpio_keys_button {
+ struct gpio_keys_platform_data {
+ struct gpio_keys_button *buttons;
+ int nbuttons;
++ unsigned int poll_interval; /* polling interval in msecs -
++ for polling driver only */
+ unsigned int rep:1; /* enable input subsystem auto repeat */
++ int (*enable)(struct device *dev);
++ void (*disable)(struct device *dev);
++ const char *name; /* input device name */
+ };
+
+ #endif