--- zzzz-none-000/linux-3.10.107/include/linux/pwm_backlight.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/linux/pwm_backlight.h	2021-02-04 17:41:59.000000000 +0000
@@ -13,6 +13,8 @@
 	unsigned int lth_brightness;
 	unsigned int pwm_period_ns;
 	unsigned int *levels;
+	/* TODO remove once all users are switched to gpiod_* API */
+	int enable_gpio;
 	int (*init)(struct device *dev);
 	int (*notify)(struct device *dev, int brightness);
 	void (*notify_after)(struct device *dev, int brightness);