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);
19#else
20static inline int rcar_lvds_clk_enable(struct drm_bridge *bridge,
21				       unsigned long freq)
22{
23	return -ENOSYS;
24}
25static inline void rcar_lvds_clk_disable(struct drm_bridge *bridge) { }
26static 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__ */