mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-22 18:44:44 +08:00
422b67e0b3
If CONFIG_OF is disabled but we build any driver that tries to use of_get_display_timing, we get this link error: ERROR: "of_get_display_timing" [drivers/gpu/drm/rcar-du/rcar-du-drm.ko] undefined! This adds an empty inline function as an alternative, to avoid changing each driver using this function when we want to build them without CONFIG_OF. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
40 lines
905 B
C
40 lines
905 B
C
/*
|
|
* Copyright 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de>
|
|
*
|
|
* display timings of helpers
|
|
*
|
|
* This file is released under the GPLv2
|
|
*/
|
|
|
|
#ifndef __LINUX_OF_DISPLAY_TIMING_H
|
|
#define __LINUX_OF_DISPLAY_TIMING_H
|
|
|
|
struct device_node;
|
|
struct display_timing;
|
|
struct display_timings;
|
|
|
|
#define OF_USE_NATIVE_MODE -1
|
|
|
|
#ifdef CONFIG_OF
|
|
int of_get_display_timing(struct device_node *np, const char *name,
|
|
struct display_timing *dt);
|
|
struct display_timings *of_get_display_timings(struct device_node *np);
|
|
int of_display_timings_exist(struct device_node *np);
|
|
#else
|
|
static inline int of_get_display_timing(struct device_node *np, const char *name,
|
|
struct display_timing *dt)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
static inline struct display_timings *of_get_display_timings(struct device_node *np)
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline int of_display_timings_exist(struct device_node *np)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#endif
|
|
|
|
#endif
|