2 * Copyright (C) 2016 Noralf Trønnes
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
10 #ifndef __LINUX_TINYDRM_H
11 #define __LINUX_TINYDRM_H
13 #include <drm/drm_simple_kms_helper.h>
18 * struct tinydrm_device - tinydrm device
20 struct tinydrm_device {
24 struct drm_device *drm;
27 * @pipe: Display pipe structure
29 struct drm_simple_display_pipe pipe;
32 static inline struct tinydrm_device *
33 pipe_to_tinydrm(struct drm_simple_display_pipe *pipe)
35 return container_of(pipe, struct tinydrm_device, pipe);
39 * TINYDRM_MODE - tinydrm display mode
40 * @hd: Horizontal resolution, width
41 * @vd: Vertical resolution, height
42 * @hd_mm: Display width in millimeters
43 * @vd_mm: Display height in millimeters
45 * This macro creates a &drm_display_mode for use with tinydrm.
47 #define TINYDRM_MODE(hd, vd, hd_mm, vd_mm) \
49 .hsync_start = (hd), \
53 .vsync_start = (vd), \
56 .width_mm = (hd_mm), \
57 .height_mm = (vd_mm), \
58 .type = DRM_MODE_TYPE_DRIVER, \
59 .clock = 1 /* pass validation */
61 int devm_tinydrm_init(struct device *parent, struct tinydrm_device *tdev,
62 struct drm_driver *driver);
63 int devm_tinydrm_register(struct tinydrm_device *tdev);
64 void tinydrm_shutdown(struct tinydrm_device *tdev);
67 tinydrm_display_pipe_init(struct tinydrm_device *tdev,
68 const struct drm_simple_display_pipe_funcs *funcs,
70 const uint32_t *formats,
71 unsigned int format_count,
72 const struct drm_display_mode *mode,
73 unsigned int rotation);
75 #endif /* __LINUX_TINYDRM_H */