drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_kms.c

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