LXR linux/drivers/gpu/drm/rcar-du/rcar

   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
  13struct drm_bridge;
  14
  15#if IS_ENABLED(CONFIG_DRM_RCAR_LVDS)
  16int rcar_lvds_clk_enable(struct drm_bridge *bridge, unsigned long freq);
  17void rcar_lvds_clk_disable(struct drm_bridge *bridge);
  18bool rcar_lvds_dual_link(struct drm_bridge *bridge);
  19bool rcar_lvds_is_connected(struct drm_bridge *bridge);
  20#else
  21static inline int rcar_lvds_clk_enable(struct drm_bridge *bridge,
  22                                       unsigned long freq)
  23{
  24        return -ENOSYS;
  25}
  26static inline void rcar_lvds_clk_disable(struct drm_bridge *bridge) { }
  27static inline bool rcar_lvds_dual_link(struct drm_bridge *bridge)
  28{
  29        return false;
  30}
  31static inline bool rcar_lvds_is_connected(struct drm_bridge *bridge)
  32{
  33        return false;
  34}
  35#endif /* CONFIG_DRM_RCAR_LVDS */
  36
  37#endif /* __RCAR_LVDS_H__ */
  38