LXR linux/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 * Copyright 2015 Freescale Semiconductor, Inc.
   4 *
   5 * Freescale DCU drm device driver
   6 */
   7
   8#include <drm/drmP.h>
   9#include <drm/drm_atomic_helper.h>
  10#include <drm/drm_fb_cma_helper.h>
  11#include <drm/drm_gem_framebuffer_helper.h>
  12#include <drm/drm_probe_helper.h>
  13
  14#include "fsl_dcu_drm_crtc.h"
  15#include "fsl_dcu_drm_drv.h"
  16
  17static const struct drm_mode_config_funcs fsl_dcu_drm_mode_config_funcs = {
  18        .atomic_check = drm_atomic_helper_check,
  19        .atomic_commit = drm_atomic_helper_commit,
  20        .fb_create = drm_gem_fb_create,
  21};
  22
  23int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev)
  24{
  25        int ret;
  26
  27        drm_mode_config_init(fsl_dev->drm);
  28
  29        fsl_dev->drm->mode_config.min_width = 0;
  30        fsl_dev->drm->mode_config.min_height = 0;
  31        fsl_dev->drm->mode_config.max_width = 2031;
  32        fsl_dev->drm->mode_config.max_height = 2047;
  33        fsl_dev->drm->mode_config.funcs = &fsl_dcu_drm_mode_config_funcs;
  34
  35        ret = fsl_dcu_drm_crtc_create(fsl_dev);
  36        if (ret)
  37                goto err;
  38
  39        ret = fsl_dcu_drm_encoder_create(fsl_dev, &fsl_dev->crtc);
  40        if (ret)
  41                goto err;
  42
  43        ret = fsl_dcu_create_outputs(fsl_dev);
  44        if (ret)
  45                goto err;
  46
  47        drm_mode_config_reset(fsl_dev->drm);
  48        drm_kms_helper_poll_init(fsl_dev->drm);
  49
  50        return 0;
  51
  52err:
  53        drm_mode_config_cleanup(fsl_dev->drm);
  54        return ret;
  55}
  56