24  * The DRM bridge connector helper object provides a DRM connector
30  * To use the helper, display controller drivers create a bridge connector with
36  * The DRM bridge connector operations are implemented based on the operations
38  * to the bridge closest to the connector (at the end of the chain) that
41  * To make use of this helper, all bridges in the chain shall report bridge
42  * operation flags (&drm_bridge->ops) and bridge output type
64 	 * The last bridge in the chain (closest to the connector) that provides
71 	 * The last bridge in the chain (closest to the connector) that provides
78 	 * The last bridge in the chain (closest to the connector) that provides
85 	 * The last bridge in the chain (closest to the connector) that provides
95  * Bridge Connector Hot-Plug Handling
103 	struct drm_bridge *bridge;  in drm_bridge_connector_hpd_notify()  local
106 	drm_for_each_bridge_in_chain(bridge_connector->encoder, bridge) {  in drm_bridge_connector_hpd_notify()
107 		if (bridge->funcs->hpd_notify)  in drm_bridge_connector_hpd_notify()
108 			bridge->funcs->hpd_notify(bridge, status);  in drm_bridge_connector_hpd_notify()
164  * Bridge Connector Functions
215 	struct drm_bridge *bridge;  in drm_bridge_connector_debugfs_init()  local
217 	list_for_each_entry(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_connector_debugfs_init()
218 		if (bridge->funcs->debugfs_init)  in drm_bridge_connector_debugfs_init()
219 			bridge->funcs->debugfs_init(bridge, root);  in drm_bridge_connector_debugfs_init()
235  * Bridge Connector Helper Functions
239 					       struct drm_bridge *bridge)  in drm_bridge_connector_get_modes_edid()  argument
249 	edid = drm_bridge_get_edid(bridge, connector);  in drm_bridge_connector_get_modes_edid()
270 	struct drm_bridge *bridge;  in drm_bridge_connector_get_modes()  local
276 	bridge = bridge_connector->bridge_edid;  in drm_bridge_connector_get_modes()
277 	if (bridge)  in drm_bridge_connector_get_modes()
278 		return drm_bridge_connector_get_modes_edid(connector, bridge);  in drm_bridge_connector_get_modes()
284 	bridge = bridge_connector->bridge_modes;  in drm_bridge_connector_get_modes()
285 	if (bridge)  in drm_bridge_connector_get_modes()
286 		return bridge->funcs->get_modes(bridge, connector);  in drm_bridge_connector_get_modes()
304  * Bridge Connector Initialisation
310  * @encoder: the encoder where the bridge chain starts
314  * the @encoder. All bridges in the chain shall report bridge operation flags
315  * (&drm_bridge->ops) and bridge output type (&drm_bridge->type), and none of
327 	struct drm_bridge *bridge, *panel_bridge = NULL;  in drm_bridge_connector_init()  local
352 	drm_for_each_bridge_in_chain(encoder, bridge) {  in drm_bridge_connector_init()
353 		if (!bridge->interlace_allowed)  in drm_bridge_connector_init()
356 		if (bridge->ops & DRM_BRIDGE_OP_EDID)  in drm_bridge_connector_init()
357 			bridge_connector->bridge_edid = bridge;  in drm_bridge_connector_init()
358 		if (bridge->ops & DRM_BRIDGE_OP_HPD)  in drm_bridge_connector_init()
359 			bridge_connector->bridge_hpd = bridge;  in drm_bridge_connector_init()
360 		if (bridge->ops & DRM_BRIDGE_OP_DETECT)  in drm_bridge_connector_init()
361 			bridge_connector->bridge_detect = bridge;  in drm_bridge_connector_init()
362 		if (bridge->ops & DRM_BRIDGE_OP_MODES)  in drm_bridge_connector_init()
363 			bridge_connector->bridge_modes = bridge;  in drm_bridge_connector_init()
365 		if (!drm_bridge_get_next_bridge(bridge))  in drm_bridge_connector_init()
366 			connector_type = bridge->type;  in drm_bridge_connector_init()
369 		if (!drm_bridge_get_next_bridge(bridge) &&  in drm_bridge_connector_init()
370 		    bridge->of_node)  in drm_bridge_connector_init()
371 			connector->fwnode = fwnode_handle_get(of_fwnode_handle(bridge->of_node));  in drm_bridge_connector_init()
374 		if (bridge->ddc)  in drm_bridge_connector_init()
375 			ddc = bridge->ddc;  in drm_bridge_connector_init()
377 		if (drm_bridge_is_panel(bridge))  in drm_bridge_connector_init()
378 			panel_bridge = bridge;  in drm_bridge_connector_init()