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
  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 const 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}
  52