1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright (C) 2015 Free Electrons
4 * Copyright (C) 2015 NextThing Co
5 *
6 * Maxime Ripard <maxime.ripard@free-electrons.com>
7 */
8
9#include <drm/drm_atomic.h>
10#include <drm/drm_atomic_helper.h>
11#include <drm/drm_blend.h>
12#include <drm/drm_gem_framebuffer_helper.h>
13
14#include "sun4i_drv.h"
15#include "sun4i_framebuffer.h"
16
17static int sun4i_de_atomic_check(struct drm_device *dev,
18				 struct drm_atomic_state *state)
19{
20	int ret;
21
22	ret = drm_atomic_helper_check_modeset(dev, state);
23	if (ret)
24		return ret;
25
26	ret = drm_atomic_normalize_zpos(dev, state);
27	if (ret)
28		return ret;
29
30	return drm_atomic_helper_check_planes(dev, state);
31}
32
33static const struct drm_mode_config_funcs sun4i_de_mode_config_funcs = {
34	.atomic_check		= sun4i_de_atomic_check,
35	.atomic_commit		= drm_atomic_helper_commit,
36	.fb_create		= drm_gem_fb_create,
37};
38
39static const struct drm_mode_config_helper_funcs sun4i_de_mode_config_helpers = {
40	.atomic_commit_tail	= drm_atomic_helper_commit_tail_rpm,
41};
42
43void sun4i_framebuffer_init(struct drm_device *drm)
44{
45	drm_mode_config_reset(drm);
46
47	drm->mode_config.max_width = 8192;
48	drm->mode_config.max_height = 8192;
49
50	drm->mode_config.funcs = &sun4i_de_mode_config_funcs;
51	drm->mode_config.helper_private = &sun4i_de_mode_config_helpers;
52}
53