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 		goto err;
41 
42 	ret = fsl_dcu_drm_encoder_create(fsl_dev, &fsl_dev->crtc);
43 	if (ret)
44 		goto err;
45 
46 	ret = fsl_dcu_create_outputs(fsl_dev);
47 	if (ret)
48 		goto err;
49 
50 	drm_mode_config_reset(fsl_dev->drm);
51 	drm_kms_helper_poll_init(fsl_dev->drm);
52 
53 	return 0;
54 
55 err:
56 	drm_mode_config_cleanup(fsl_dev->drm);
57 	return ret;
58 }
59