1 /* 2 * Copyright © 2016 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 */ 22 23 /* 24 * This header file contains mode setting related functions and definitions 25 * which are only used within the drm kms helper module as internal 26 * implementation details and are not exported to drivers. 27 */ 28 29 #include <drm/drm_dp_helper.h> 30 31 /* drm_fb_helper.c */ 32 #ifdef CONFIG_DRM_FBDEV_EMULATION 33 int drm_fb_helper_modinit(void); 34 #else 35 static inline int drm_fb_helper_modinit(void) 36 { 37 return 0; 38 } 39 #endif 40 41 /* drm_dp_aux_dev.c */ 42 #ifdef CONFIG_DRM_DP_AUX_CHARDEV 43 int drm_dp_aux_dev_init(void); 44 void drm_dp_aux_dev_exit(void); 45 int drm_dp_aux_register_devnode(struct drm_dp_aux *aux); 46 void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux); 47 #else 48 static inline int drm_dp_aux_dev_init(void) 49 { 50 return 0; 51 } 52 53 static inline void drm_dp_aux_dev_exit(void) 54 { 55 } 56 57 static inline int drm_dp_aux_register_devnode(struct drm_dp_aux *aux) 58 { 59 return 0; 60 } 61 62 static inline void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux) 63 { 64 } 65 #endif 66