+ * panel_set_backlight - Set brightness for the panel backlight
+ *
+ * @dev: Panel device containing the backlight to update
+ * @percent: Brightness value (0 to 100, or BACKLIGHT_... value)
+ * @return 0 if OK, -ve on error
+ */
+int panel_set_backlight(struct udevice *dev, int percent);
+
+/**