|  | /* SPDX-License-Identifier: GPL-2.0-only */ | 
|  | /* | 
|  | * Copyright 2012 Steffen Trumtrar <s.trumtrar@pengutronix.de> | 
|  | * | 
|  | * display timings of helpers | 
|  | */ | 
|  |  | 
|  | #ifndef __LINUX_OF_DISPLAY_TIMING_H | 
|  | #define __LINUX_OF_DISPLAY_TIMING_H | 
|  |  | 
|  | #include <linux/errno.h> | 
|  |  | 
|  | struct device_node; | 
|  | struct display_timing; | 
|  | struct display_timings; | 
|  |  | 
|  | #define OF_USE_NATIVE_MODE -1 | 
|  |  | 
|  | #ifdef CONFIG_OF | 
|  | int of_get_display_timing(const struct device_node *np, const char *name, | 
|  | struct display_timing *dt); | 
|  | struct display_timings *of_get_display_timings(const struct device_node *np); | 
|  | #else | 
|  | static inline int of_get_display_timing(const struct device_node *np, | 
|  | const char *name, struct display_timing *dt) | 
|  | { | 
|  | return -ENOSYS; | 
|  | } | 
|  | static inline struct display_timings * | 
|  | of_get_display_timings(const struct device_node *np) | 
|  | { | 
|  | return NULL; | 
|  | } | 
|  | #endif | 
|  |  | 
|  | #endif |