drm: bridge: Allow daisy chaining of bridges

[uclinux-h8/linux.git] / include / drm / drm_crtc.h

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index bff25b0..dace1b6 100644 (file)
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -903,6 +903,8 @@ struct drm_bridge_funcs {
 /**
  * struct drm_bridge - central DRM bridge control structure
  * @dev: DRM device this bridge belongs to
+ * @encoder: encoder to which this bridge is connected
+ * @next: the next bridge in the encoder chain
  * @of_node: device node pointer to the bridge
  * @list: to keep track of all added bridges
  * @base: base mode object
@@ -912,6 +914,7 @@ struct drm_bridge_funcs {
 struct drm_bridge {
        struct drm_device *dev;
        struct drm_encoder *encoder;
+       struct drm_bridge *next;
 #ifdef CONFIG_OF
        struct device_node *of_node;
 #endif
@@ -1247,6 +1250,17 @@ extern void drm_bridge_remove(struct drm_bridge *bridge);
 extern struct drm_bridge *of_drm_find_bridge(struct device_node *np);
 extern int drm_bridge_attach(struct drm_device *dev, struct drm_bridge *bridge);
 
+bool drm_bridge_mode_fixup(struct drm_bridge *bridge,
+                       const struct drm_display_mode *mode,
+                       struct drm_display_mode *adjusted_mode);
+void drm_bridge_disable(struct drm_bridge *bridge);
+void drm_bridge_post_disable(struct drm_bridge *bridge);
+void drm_bridge_mode_set(struct drm_bridge *bridge,
+                       struct drm_display_mode *mode,
+                       struct drm_display_mode *adjusted_mode);
+void drm_bridge_pre_enable(struct drm_bridge *bridge);
+void drm_bridge_enable(struct drm_bridge *bridge);
+
 extern int drm_encoder_init(struct drm_device *dev,
                            struct drm_encoder *encoder,
                            const struct drm_encoder_funcs *funcs,