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/drmP.h>
9 #include <drm/drm_atomic_helper.h>
10 #include <drm/drm_fb_cma_helper.h>
11 #include <drm/drm_gem_framebuffer_helper.h>
12 #include <drm/drm_probe_helper.h>
13 
14 #include "fsl_dcu_drm_crtc.h"
15 #include "fsl_dcu_drm_drv.h"
16 
17 static const struct drm_mode_config_funcs fsl_dcu_drm_mode_config_funcs = {
18 	.atomic_check = drm_atomic_helper_check,
19 	.atomic_commit = drm_atomic_helper_commit,
20 	.fb_create = drm_gem_fb_create,
21 };
22 
23 int fsl_dcu_drm_modeset_init(struct fsl_dcu_drm_device *fsl_dev)
24 {
25 	int ret;
26 
27 	drm_mode_config_init(fsl_dev->drm);
28 
29 	fsl_dev->drm->mode_config.min_width = 0;
30 	fsl_dev->drm->mode_config.min_height = 0;
31 	fsl_dev->drm->mode_config.max_width = 2031;
32 	fsl_dev->drm->mode_config.max_height = 2047;
33 	fsl_dev->drm->mode_config.funcs = &fsl_dcu_drm_mode_config_funcs;
34 
35 	ret = fsl_dcu_drm_crtc_create(fsl_dev);
36 	if (ret)
37 		goto err;
38 
39 	ret = fsl_dcu_drm_encoder_create(fsl_dev, &fsl_dev->crtc);
40 	if (ret)
41 		goto err;
42 
43 	ret = fsl_dcu_create_outputs(fsl_dev);
44 	if (ret)
45 		goto err;
46 
47 	drm_mode_config_reset(fsl_dev->drm);
48 	drm_kms_helper_poll_init(fsl_dev->drm);
49 
50 	return 0;
51 
52 err:
53 	drm_mode_config_cleanup(fsl_dev->drm);
54 	return ret;
55 }
56