drivers/gpu/drm/rcar-du/rcar_lvds.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * rcar_lvds.h  --  R-Car LVDS Encoder
   4  *
   5  * Copyright (C) 2013-2018 Renesas Electronics Corporation
   6  *
   7  * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
   8  */
   9
  10 #ifndef __RCAR_LVDS_H__
  11 #define __RCAR_LVDS_H__
  12
  13 struct drm_bridge;
  14
  15 #if IS_ENABLED(CONFIG_DRM_RCAR_LVDS)
  16 int rcar_lvds_clk_enable(struct drm_bridge *bridge, unsigned long freq);
  17 void rcar_lvds_clk_disable(struct drm_bridge *bridge);
  18 bool rcar_lvds_dual_link(struct drm_bridge *bridge);
  19 #else
  20 static inline int rcar_lvds_clk_enable(struct drm_bridge *bridge,
  21                                        unsigned long freq)
  22 {
  23         return -ENOSYS;
  24 }
  25 static inline void rcar_lvds_clk_disable(struct drm_bridge *bridge) { }
  26 static inline bool rcar_lvds_dual_link(struct drm_bridge *bridge)
  27 {
  28         return false;
  29 }
  30 #endif /* CONFIG_DRM_RCAR_LVDS */
  31
  32 #endif /* __RCAR_LVDS_H__ */