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 13 struct drm_bridge; 14 15 #if IS_ENABLED(CONFIG_DRM_RCAR_LVDS) 16 int rcar_lvds_pclk_enable(struct drm_bridge *bridge, unsigned long freq, 17 bool dot_clk_only); 18 void rcar_lvds_pclk_disable(struct drm_bridge *bridge, bool dot_clk_only); 19 bool rcar_lvds_dual_link(struct drm_bridge *bridge); 20 bool rcar_lvds_is_connected(struct drm_bridge *bridge); 21 #else 22 static inline int rcar_lvds_pclk_enable(struct drm_bridge *bridge, 23 unsigned long freq, bool dot_clk_only) 24 { 25 return -ENOSYS; 26 } 27 static inline void rcar_lvds_pclk_disable(struct drm_bridge *bridge, 28 bool dot_clock_only) 29 { 30 } 31 static inline bool rcar_lvds_dual_link(struct drm_bridge *bridge) 32 { 33 return false; 34 } 35 static inline bool rcar_lvds_is_connected(struct drm_bridge *bridge) 36 { 37 return false; 38 } 39 #endif /* CONFIG_DRM_RCAR_LVDS */ 40 41 #endif /* __RCAR_LVDS_H__ */ 42