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
  17 #include "fsl_dcu_drm_crtc.h"
  18 #include "fsl_dcu_drm_drv.h"
  19
  20 static const struct drm_mode_config_funcs fsl_dcu_drm_mode_config_funcs = {
  21         .atomic_check = drm_atomic_helper_check,
  22         .atomic_commit = drm_atomic_helper_commit,
  23         .fb_create = drm_fb_cma_create,
  24 };
  25
  26 int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev)
  27 {
  28         int ret;
  29
  30         drm_mode_config_init(fsl_dev->drm);
  31
  32         fsl_dev->drm->mode_config.min_width = 0;
  33         fsl_dev->drm->mode_config.min_height = 0;
  34         fsl_dev->drm->mode_config.max_width = 2031;
  35         fsl_dev->drm->mode_config.max_height = 2047;
  36         fsl_dev->drm->mode_config.funcs = &fsl_dcu_drm_mode_config_funcs;
  37
  38         ret = fsl_dcu_drm_crtc_create(fsl_dev);
  39         if (ret)
  40                 return ret;
  41
  42         ret = fsl_dcu_drm_encoder_create(fsl_dev, &fsl_dev->crtc);
  43         if (ret)
  44                 goto fail_encoder;
  45
  46         ret = fsl_dcu_drm_connector_create(fsl_dev, &fsl_dev->encoder);
  47         if (ret)
  48                 goto fail_connector;
  49
  50         drm_mode_config_reset(fsl_dev->drm);
  51         drm_kms_helper_poll_init(fsl_dev->drm);
  52
  53         return 0;
  54 fail_encoder:
  55         fsl_dev->crtc.funcs->destroy(&fsl_dev->crtc);
  56 fail_connector:
  57         fsl_dev->encoder.funcs->destroy(&fsl_dev->encoder);
  58         return ret;
  59 }