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_gem_framebuffer_helper.h>
12
13#include "sun4i_drv.h"
14#include "sun4i_framebuffer.h"
15
16static int sun4i_de_atomic_check(struct drm_device *dev,
17				 struct drm_atomic_state *state)
18{
19	int ret;
20
21	ret = drm_atomic_helper_check_modeset(dev, state);
22	if (ret)
23		return ret;
24
25	ret = drm_atomic_normalize_zpos(dev, state);
26	if (ret)
27		return ret;
28
29	return drm_atomic_helper_check_planes(dev, state);
30}
31
32static const struct drm_mode_config_funcs sun4i_de_mode_config_funcs = {
33	.atomic_check		= sun4i_de_atomic_check,
34	.atomic_commit		= drm_atomic_helper_commit,
35	.fb_create		= drm_gem_fb_create,
36};
37
38static struct drm_mode_config_helper_funcs sun4i_de_mode_config_helpers = {
39	.atomic_commit_tail	= drm_atomic_helper_commit_tail_rpm,
40};
41
42void sun4i_framebuffer_init(struct drm_device *drm)
43{
44	drm_mode_config_reset(drm);
45
46	drm->mode_config.max_width = 8192;
47	drm->mode_config.max_height = 8192;
48
49	drm->mode_config.funcs = &sun4i_de_mode_config_funcs;
50	drm->mode_config.helper_private = &sun4i_de_mode_config_helpers;
51}