LXR linux/drivers/gpu/drm/sun4i/sun4i

   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#include <drm/drmP.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 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