1/* SPDX-License-Identifier: MIT */
2/*
3 * Function prototypes for misc. drm utility functions.
4 * Specifically this file is for function prototypes for functions which
5 * may also be used outside of drm code (e.g. in fbdev drivers).
6 *
7 * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
8 */
9
10#ifndef __DRM_UTILS_H__
11#define __DRM_UTILS_H__
12
13#include <linux/types.h>
14
15struct drm_edid;
16
17int drm_get_panel_orientation_quirk(int width, int height);
18
19struct drm_panel_backlight_quirk {
20 u16 min_brightness;
21 u32 brightness_mask;
22};
23
24const struct drm_panel_backlight_quirk *
25drm_get_panel_backlight_quirk(const struct drm_edid *edid);
26
27signed long drm_timeout_abs_to_jiffies(int64_t timeout_nsec);
28
29#endif
30