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 12 struct device_node; 13 struct display_timing; 14 struct display_timings; 15 16 #define OF_USE_NATIVE_MODE -1 17 18 #ifdef CONFIG_OF 19 int of_get_display_timing(const struct device_node *np, const char *name, 20 struct display_timing *dt); 21 struct display_timings *of_get_display_timings(const struct device_node *np); 22 int of_display_timings_exist(const struct device_node *np); 23 #else 24 static inline int of_get_display_timing(const struct device_node *np, 25 const char *name, struct display_timing *dt) 26 { 27 return -ENOSYS; 28 } 29 static inline struct display_timings * 30 of_get_display_timings(const struct device_node *np) 31 { 32 return NULL; 33 } 34 static inline int of_display_timings_exist(const struct device_node *np) 35 { 36 return -ENOSYS; 37 } 38 #endif 39 40 #endif 41