1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * 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_pclk_enable(struct drm_bridge *bridge, unsigned long freq);
17void rcar_lvds_pclk_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_pclk_enable(struct drm_bridge *bridge,
22					unsigned long freq)
23{
24	return -ENOSYS;
25}
26static inline void rcar_lvds_pclk_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__ */