include/video/of_display_timing.h

   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(struct device_node *np, const char *name,
  20                 struct display_timing *dt);
  21 struct display_timings *of_get_display_timings(struct device_node *np);
  22 int of_display_timings_exist(struct device_node *np);
  23 #else
  24 static inline int of_get_display_timing(struct device_node *np, const char *name,
  25                 struct display_timing *dt)
  26 {
  27         return -ENOSYS;
  28 }
  29 static inline struct display_timings *of_get_display_timings(struct device_node *np)
  30 {
  31         return NULL;
  32 }
  33 static inline int of_display_timings_exist(struct device_node *np)
  34 {
  35         return -ENOSYS;
  36 }
  37 #endif
  38
  39 #endif