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 }
55