drm/sun4i/sun4i_framebuffer.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Copyright (C) 2015 Free Electrons
0004  * Copyright (C) 2015 NextThing Co
0005  *
0006  * Maxime Ripard <maxime.ripard@free-electrons.com>
0007  */
0008
0009 #include <drm/drm_atomic.h>
0010 #include <drm/drm_atomic_helper.h>
0011 #include <drm/drm_blend.h>
0012 #include <drm/drm_gem_framebuffer_helper.h>
0013
0014 #include "sun4i_drv.h"
0015 #include "sun4i_framebuffer.h"
0016
0017 static int sun4i_de_atomic_check(struct drm_device *dev,
0018                  struct drm_atomic_state *state)
0019 {
0020     int ret;
0021
0022     ret = drm_atomic_helper_check_modeset(dev, state);
0023     if (ret)
0024         return ret;
0025
0026     ret = drm_atomic_normalize_zpos(dev, state);
0027     if (ret)
0028         return ret;
0029
0030     return drm_atomic_helper_check_planes(dev, state);
0031 }
0032
0033 static const struct drm_mode_config_funcs sun4i_de_mode_config_funcs = {
0034     .atomic_check       = sun4i_de_atomic_check,
0035     .atomic_commit      = drm_atomic_helper_commit,
0036     .fb_create      = drm_gem_fb_create,
0037 };
0038
0039 static const struct drm_mode_config_helper_funcs sun4i_de_mode_config_helpers = {
0040     .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
0041 };
0042
0043 void sun4i_framebuffer_init(struct drm_device *drm)
0044 {
0045     drm_mode_config_reset(drm);
0046
0047     drm->mode_config.max_width = 8192;
0048     drm->mode_config.max_height = 8192;
0049
0050     drm->mode_config.funcs = &sun4i_de_mode_config_funcs;
0051     drm->mode_config.helper_private = &sun4i_de_mode_config_helpers;
0052 }