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

   1 /*
   2  * Copyright 2015 Freescale Semiconductor, Inc.
   3  *
   4  * Freescale DCU drm device driver
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  */
  11
  12 #include <drm/drmP.h>
  13 #include <drm/drm_atomic_helper.h>
  14 #include <drm/drm_crtc_helper.h>
  15 #include <drm/drm_fb_cma_helper.h>
  16 #include <drm/drm_gem_framebuffer_helper.h>
  17
  18 #include "fsl_dcu_drm_crtc.h"
  19 #include "fsl_dcu_drm_drv.h"
  20
  21 static const struct drm_mode_config_funcs fsl_dcu_drm_mode_config_funcs = {
  22         .atomic_check = drm_atomic_helper_check,
  23         .atomic_commit = drm_atomic_helper_commit,
  24         .fb_create = drm_gem_fb_create,
  25 };
  26
  27 int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev)
  28 {
  29         int ret;
  30
  31         drm_mode_config_init(fsl_dev->drm);
  32
  33         fsl_dev->drm->mode_config.min_width = 0;
  34         fsl_dev->drm->mode_config.min_height = 0;
  35         fsl_dev->drm->mode_config.max_width = 2031;
  36         fsl_dev->drm->mode_config.max_height = 2047;
  37         fsl_dev->drm->mode_config.funcs = &fsl_dcu_drm_mode_config_funcs;
  38
  39         ret = fsl_dcu_drm_crtc_create(fsl_dev);
  40         if (ret)
  41                 goto err;
  42
  43         ret = fsl_dcu_drm_encoder_create(fsl_dev, &fsl_dev->crtc);
  44         if (ret)
  45                 goto err;
  46
  47         ret = fsl_dcu_create_outputs(fsl_dev);
  48         if (ret)
  49                 goto err;
  50
  51         drm_mode_config_reset(fsl_dev->drm);
  52         drm_kms_helper_poll_init(fsl_dev->drm);
  53
  54         return 0;
  55
  56 err:
  57         drm_mode_config_cleanup(fsl_dev->drm);
  58         return ret;
  59 }