xref: /linux/drivers/gpu/drm/drm_crtc_helper_internal.h (revision e15c8f4b6e5ecd370890c218688ead4e91f6b0d6)
1*e15c8f4bSDaniel Vetter /*
2*e15c8f4bSDaniel Vetter  * Copyright © 2016 Intel Corporation
3*e15c8f4bSDaniel Vetter  *
4*e15c8f4bSDaniel Vetter  * Permission is hereby granted, free of charge, to any person obtaining a
5*e15c8f4bSDaniel Vetter  * copy of this software and associated documentation files (the "Software"),
6*e15c8f4bSDaniel Vetter  * to deal in the Software without restriction, including without limitation
7*e15c8f4bSDaniel Vetter  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*e15c8f4bSDaniel Vetter  * and/or sell copies of the Software, and to permit persons to whom the
9*e15c8f4bSDaniel Vetter  * Software is furnished to do so, subject to the following conditions:
10*e15c8f4bSDaniel Vetter  *
11*e15c8f4bSDaniel Vetter  * The above copyright notice and this permission notice shall be included in
12*e15c8f4bSDaniel Vetter  * all copies or substantial portions of the Software.
13*e15c8f4bSDaniel Vetter  *
14*e15c8f4bSDaniel Vetter  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15*e15c8f4bSDaniel Vetter  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16*e15c8f4bSDaniel Vetter  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17*e15c8f4bSDaniel Vetter  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18*e15c8f4bSDaniel Vetter  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19*e15c8f4bSDaniel Vetter  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20*e15c8f4bSDaniel Vetter  * OTHER DEALINGS IN THE SOFTWARE.
21*e15c8f4bSDaniel Vetter  */
22*e15c8f4bSDaniel Vetter 
23*e15c8f4bSDaniel Vetter /*
24*e15c8f4bSDaniel Vetter  * This header file contains mode setting related functions and definitions
25*e15c8f4bSDaniel Vetter  * which are only used within the drm kms helper module as internal
26*e15c8f4bSDaniel Vetter  * implementation details and are not exported to drivers.
27*e15c8f4bSDaniel Vetter  */
28*e15c8f4bSDaniel Vetter 
29*e15c8f4bSDaniel Vetter #include <drm/drm_dp_helper.h>
30*e15c8f4bSDaniel Vetter 
31*e15c8f4bSDaniel Vetter /* drm_fb_helper.c */
32*e15c8f4bSDaniel Vetter int drm_fb_helper_modinit(void);
33*e15c8f4bSDaniel Vetter 
34*e15c8f4bSDaniel Vetter /* drm_dp_aux_dev.c */
35*e15c8f4bSDaniel Vetter #ifdef CONFIG_DRM_DP_AUX_CHARDEV
36*e15c8f4bSDaniel Vetter int drm_dp_aux_dev_init(void);
37*e15c8f4bSDaniel Vetter void drm_dp_aux_dev_exit(void);
38*e15c8f4bSDaniel Vetter int drm_dp_aux_register_devnode(struct drm_dp_aux *aux);
39*e15c8f4bSDaniel Vetter void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux);
40*e15c8f4bSDaniel Vetter #else
41*e15c8f4bSDaniel Vetter static inline int drm_dp_aux_dev_init(void)
42*e15c8f4bSDaniel Vetter {
43*e15c8f4bSDaniel Vetter 	return 0;
44*e15c8f4bSDaniel Vetter }
45*e15c8f4bSDaniel Vetter 
46*e15c8f4bSDaniel Vetter static inline void drm_dp_aux_dev_exit(void)
47*e15c8f4bSDaniel Vetter {
48*e15c8f4bSDaniel Vetter }
49*e15c8f4bSDaniel Vetter 
50*e15c8f4bSDaniel Vetter static inline int drm_dp_aux_register_devnode(struct drm_dp_aux *aux)
51*e15c8f4bSDaniel Vetter {
52*e15c8f4bSDaniel Vetter 	return 0;
53*e15c8f4bSDaniel Vetter }
54*e15c8f4bSDaniel Vetter 
55*e15c8f4bSDaniel Vetter static inline void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux)
56*e15c8f4bSDaniel Vetter {
57*e15c8f4bSDaniel Vetter }
58*e15c8f4bSDaniel Vetter #endif
59