drm_utils.h

 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