1 /*
2  * Copyright (C) 2015 Free Electrons
3  * Copyright (C) 2015 NextThing Co
4  *
5  * Maxime Ripard <maxime.ripard@free-electrons.com>
6  *
7  * This program is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU General Public License as
9  * published by the Free Software Foundation; either version 2 of
10  * the License, or (at your option) any later version.
11  */
12 
13 #include <drm/drm_atomic.h>
14 #include <drm/drm_atomic_helper.h>
15 #include <drm/drm_gem_framebuffer_helper.h>
16 #include <drm/drmP.h>
17 
18 #include "sun4i_drv.h"
19 #include "sun4i_framebuffer.h"
20 
21 static int sun4i_de_atomic_check(struct drm_device *dev,
22 				 struct drm_atomic_state *state)
23 {
24 	int ret;
25 
26 	ret = drm_atomic_helper_check_modeset(dev, state);
27 	if (ret)
28 		return ret;
29 
30 	ret = drm_atomic_normalize_zpos(dev, state);
31 	if (ret)
32 		return ret;
33 
34 	return drm_atomic_helper_check_planes(dev, state);
35 }
36 
37 static const struct drm_mode_config_funcs sun4i_de_mode_config_funcs = {
38 	.atomic_check		= sun4i_de_atomic_check,
39 	.atomic_commit		= drm_atomic_helper_commit,
40 	.fb_create		= drm_gem_fb_create,
41 };
42 
43 static struct drm_mode_config_helper_funcs sun4i_de_mode_config_helpers = {
44 	.atomic_commit_tail	= drm_atomic_helper_commit_tail_rpm,
45 };
46 
47 void sun4i_framebuffer_init(struct drm_device *drm)
48 {
49 	drm_mode_config_reset(drm);
50 
51 	drm->mode_config.max_width = 8192;
52 	drm->mode_config.max_height = 8192;
53 
54 	drm->mode_config.funcs = &sun4i_de_mode_config_funcs;
55 	drm->mode_config.helper_private = &sun4i_de_mode_config_helpers;
56 }
57