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_connector.h> 30 #include <drm/drm_crtc.h> 31 #include <drm/drm_dp_helper.h> 32 #include <drm/drm_encoder.h> 33 #include <drm/drm_modes.h> 34 35 /* drm_fb_helper.c */ 36 #ifdef CONFIG_DRM_FBDEV_EMULATION 37 int drm_fb_helper_modinit(void); 38 #else 39 static inline int drm_fb_helper_modinit(void) 40 { 41 return 0; 42 } 43 #endif 44 45 /* drm_dp_aux_dev.c */ 46 #ifdef CONFIG_DRM_DP_AUX_CHARDEV 47 int drm_dp_aux_dev_init(void); 48 void drm_dp_aux_dev_exit(void); 49 int drm_dp_aux_register_devnode(struct drm_dp_aux *aux); 50 void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux); 51 #else 52 static inline int drm_dp_aux_dev_init(void) 53 { 54 return 0; 55 } 56 57 static inline void drm_dp_aux_dev_exit(void) 58 { 59 } 60 61 static inline int drm_dp_aux_register_devnode(struct drm_dp_aux *aux) 62 { 63 return 0; 64 } 65 66 static inline void drm_dp_aux_unregister_devnode(struct drm_dp_aux *aux) 67 { 68 } 69 #endif 70 71 /* drm_probe_helper.c */ 72 enum drm_mode_status drm_crtc_mode_valid(struct drm_crtc *crtc, 73 const struct drm_display_mode *mode); 74 enum drm_mode_status drm_encoder_mode_valid(struct drm_encoder *encoder, 75 const struct drm_display_mode *mode); 76 enum drm_mode_status drm_connector_mode_valid(struct drm_connector *connector, 77 struct drm_display_mode *mode); 78