drm: rcar-du: lvds: Add support for dual-link mode

[linux.git] / drivers / gpu / drm / rcar-du / rcar_lvds.h

diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.h b/drivers/gpu/drm/rcar-du/rcar_lvds.h
index a709cae1bc32b15a6fe939f676cadb447f1bbe41..222ec0e60785ca31901d0a14cf8ce9ca89860cb3 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_lvds.h
+++ b/drivers/gpu/drm/rcar-du/rcar_lvds.h
@@ -15,6 +15,7 @@ struct drm_bridge;
 #if IS_ENABLED(CONFIG_DRM_RCAR_LVDS)
 int rcar_lvds_clk_enable(struct drm_bridge *bridge, unsigned long freq);
 void rcar_lvds_clk_disable(struct drm_bridge *bridge);
+bool rcar_lvds_dual_link(struct drm_bridge *bridge);
 #else
 static inline int rcar_lvds_clk_enable(struct drm_bridge *bridge,
                                       unsigned long freq)
@@ -22,6 +23,10 @@ static inline int rcar_lvds_clk_enable(struct drm_bridge *bridge,
        return -ENOSYS;
 }
 static inline void rcar_lvds_clk_disable(struct drm_bridge *bridge) { }
+static inline bool rcar_lvds_dual_link(struct drm_bridge *bridge)
+{
+       return false;
+}
 #endif /* CONFIG_DRM_RCAR_LVDS */
 
 #endif /* __RCAR_LVDS_H__ */