include/drm/bridge/aux-bridge.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2 /*
   3  * Copyright (C) 2023 Linaro Ltd.
   4  *
   5  * Author: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
   6  */
   7 #ifndef DRM_AUX_BRIDGE_H
   8 #define DRM_AUX_BRIDGE_H
   9
  10 #include <drm/drm_connector.h>
  11
  12 struct auxiliary_device;
  13
  14 #if IS_ENABLED(CONFIG_DRM_AUX_BRIDGE)
  15 int drm_aux_bridge_register(struct device *parent);
  16 #else
  17 static inline int drm_aux_bridge_register(struct device *parent)
  18 {
  19         return 0;
  20 }
  21 #endif
  22
  23 #if IS_ENABLED(CONFIG_DRM_AUX_HPD_BRIDGE)
  24 struct auxiliary_device *devm_drm_dp_hpd_bridge_alloc(struct device *parent, struct device_node *np);
  25 int devm_drm_dp_hpd_bridge_add(struct device *dev, struct auxiliary_device *adev);
  26 struct device *drm_dp_hpd_bridge_register(struct device *parent,
  27                                           struct device_node *np);
  28 void drm_aux_hpd_bridge_notify(struct device *dev, enum drm_connector_status status);
  29 #else
  30 static inline struct auxiliary_device *devm_drm_dp_hpd_bridge_alloc(struct device *parent,
  31                                                                     struct device_node *np)
  32 {
  33         return NULL;
  34 }
  35
  36 static inline int devm_drm_dp_hpd_bridge_add(struct auxiliary_device *adev)
  37 {
  38         return 0;
  39 }
  40
  41 static inline struct device *drm_dp_hpd_bridge_register(struct device *parent,
  42                                                         struct device_node *np)
  43 {
  44         return NULL;
  45 }
  46
  47 static inline void drm_aux_hpd_bridge_notify(struct device *dev, enum drm_connector_status status)
  48 {
  49 }
  50 #endif
  51
  52 #endif