1/* 2 * Copyright 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de> 3 * 4 * display timings of helpers 5 * 6 * This file is released under the GPLv2 7 */ 8 9#ifndef __LINUX_OF_DISPLAY_TIMING_H 10#define __LINUX_OF_DISPLAY_TIMING_H 11 12struct device_node; 13struct display_timing; 14struct display_timings; 15 16#define OF_USE_NATIVE_MODE -1 17 18#ifdef CONFIG_OF 19int of_get_display_timing(struct device_node *np, const char *name, 20 struct display_timing *dt); 21struct display_timings *of_get_display_timings(struct device_node *np); 22int of_display_timings_exist(struct device_node *np); 23#else 24static inline int of_get_display_timing(struct device_node *np, const char *name, 25 struct display_timing *dt) 26{ 27 return -ENOSYS; 28} 29static inline struct display_timings *of_get_display_timings(struct device_node *np) 30{ 31 return NULL; 32} 33static inline int of_display_timings_exist(struct device_node *np) 34{ 35 return -ENOSYS; 36} 37#endif 38 39#endif 40