205 void drm_bridge_add(struct drm_bridge *bridge)  in drm_bridge_add()  argument
207 	mutex_init(&bridge->hpd_mutex);  in drm_bridge_add()
210 	list_add_tail(&bridge->list, &bridge_list);  in drm_bridge_add()
215 static void drm_bridge_remove_void(void *bridge)  in drm_bridge_remove_void()  argument
217 	drm_bridge_remove(bridge);  in drm_bridge_remove_void()
231 int devm_drm_bridge_add(struct device *dev, struct drm_bridge *bridge)  in devm_drm_bridge_add()  argument
233 	drm_bridge_add(bridge);  in devm_drm_bridge_add()
234 	return devm_add_action_or_reset(dev, drm_bridge_remove_void, bridge);  in devm_drm_bridge_add()
243 void drm_bridge_remove(struct drm_bridge *bridge)  in drm_bridge_remove()  argument
246 	list_del_init(&bridge->list);  in drm_bridge_remove()
249 	mutex_destroy(&bridge->hpd_mutex);  in drm_bridge_remove()
256 	struct drm_bridge *bridge = drm_priv_to_bridge(obj);  in drm_bridge_atomic_duplicate_priv_state()  local
259 	state = bridge->funcs->atomic_duplicate_state(bridge);  in drm_bridge_atomic_duplicate_priv_state()
268 	struct drm_bridge *bridge = drm_priv_to_bridge(obj);  in drm_bridge_atomic_destroy_priv_state()  local
270 	bridge->funcs->atomic_destroy_state(bridge, state);  in drm_bridge_atomic_destroy_priv_state()
301 int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge,  in drm_bridge_attach()  argument
307 	if (!encoder || !bridge)  in drm_bridge_attach()
313 	if (bridge->dev)  in drm_bridge_attach()
316 	bridge->dev = encoder->dev;  in drm_bridge_attach()
317 	bridge->encoder = encoder;  in drm_bridge_attach()
320 		list_add(&bridge->chain_node, &previous->chain_node);  in drm_bridge_attach()
322 		list_add(&bridge->chain_node, &encoder->bridge_chain);  in drm_bridge_attach()
324 	if (bridge->funcs->attach) {  in drm_bridge_attach()
325 		ret = bridge->funcs->attach(bridge, flags);  in drm_bridge_attach()
330 	if (bridge->funcs->atomic_reset) {  in drm_bridge_attach()
333 		state = bridge->funcs->atomic_reset(bridge);  in drm_bridge_attach()
339 		drm_atomic_private_obj_init(bridge->dev, &bridge->base,  in drm_bridge_attach()
347 	if (bridge->funcs->detach)  in drm_bridge_attach()
348 		bridge->funcs->detach(bridge);  in drm_bridge_attach()
351 	bridge->dev = NULL;  in drm_bridge_attach()
352 	bridge->encoder = NULL;  in drm_bridge_attach()
353 	list_del(&bridge->chain_node);  in drm_bridge_attach()
357 		  bridge->of_node, encoder->name, ret);  in drm_bridge_attach()
367 void drm_bridge_detach(struct drm_bridge *bridge)  in drm_bridge_detach()  argument
369 	if (WARN_ON(!bridge))  in drm_bridge_detach()
372 	if (WARN_ON(!bridge->dev))  in drm_bridge_detach()
375 	if (bridge->funcs->atomic_reset)  in drm_bridge_detach()
376 		drm_atomic_private_obj_fini(&bridge->base);  in drm_bridge_detach()
378 	if (bridge->funcs->detach)  in drm_bridge_detach()
379 		bridge->funcs->detach(bridge);  in drm_bridge_detach()
381 	list_del(&bridge->chain_node);  in drm_bridge_detach()
382 	bridge->dev = NULL;  in drm_bridge_detach()
489 bool drm_bridge_chain_mode_fixup(struct drm_bridge *bridge,  in drm_bridge_chain_mode_fixup()  argument
495 	if (!bridge)  in drm_bridge_chain_mode_fixup()
498 	encoder = bridge->encoder;  in drm_bridge_chain_mode_fixup()
499 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_fixup()
500 		if (!bridge->funcs->mode_fixup)  in drm_bridge_chain_mode_fixup()
503 		if (!bridge->funcs->mode_fixup(bridge, mode, adjusted_mode))  in drm_bridge_chain_mode_fixup()
528 drm_bridge_chain_mode_valid(struct drm_bridge *bridge,  in drm_bridge_chain_mode_valid()  argument
534 	if (!bridge)  in drm_bridge_chain_mode_valid()
537 	encoder = bridge->encoder;  in drm_bridge_chain_mode_valid()
538 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_valid()
541 		if (!bridge->funcs->mode_valid)  in drm_bridge_chain_mode_valid()
544 		ret = bridge->funcs->mode_valid(bridge, info, mode);  in drm_bridge_chain_mode_valid()
565 void drm_bridge_chain_mode_set(struct drm_bridge *bridge,  in drm_bridge_chain_mode_set()  argument
571 	if (!bridge)  in drm_bridge_chain_mode_set()
574 	encoder = bridge->encoder;  in drm_bridge_chain_mode_set()
575 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_set()
576 		if (bridge->funcs->mode_set)  in drm_bridge_chain_mode_set()
577 			bridge->funcs->mode_set(bridge, mode, adjusted_mode);  in drm_bridge_chain_mode_set()
594 void drm_atomic_bridge_chain_disable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_disable()  argument
600 	if (!bridge)  in drm_atomic_bridge_chain_disable()
603 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_disable()
619 		if (iter == bridge)  in drm_atomic_bridge_chain_disable()
625 static void drm_atomic_bridge_call_post_disable(struct drm_bridge *bridge,  in drm_atomic_bridge_call_post_disable()  argument
628 	if (old_state && bridge->funcs->atomic_post_disable) {  in drm_atomic_bridge_call_post_disable()
633 							bridge);  in drm_atomic_bridge_call_post_disable()
637 		bridge->funcs->atomic_post_disable(bridge,  in drm_atomic_bridge_call_post_disable()
639 	} else if (bridge->funcs->post_disable) {  in drm_atomic_bridge_call_post_disable()
640 		bridge->funcs->post_disable(bridge);  in drm_atomic_bridge_call_post_disable()
661 void drm_atomic_bridge_chain_post_disable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_post_disable()  argument
667 	if (!bridge)  in drm_atomic_bridge_chain_post_disable()
670 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_post_disable()
672 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_atomic_bridge_chain_post_disable()
675 		if (!list_is_last(&bridge->chain_node, &encoder->bridge_chain)) {  in drm_atomic_bridge_chain_post_disable()
676 			next = list_next_entry(bridge, chain_node);  in drm_atomic_bridge_chain_post_disable()
699 					if (next == bridge)  in drm_atomic_bridge_chain_post_disable()
708 		drm_atomic_bridge_call_post_disable(bridge, old_state);  in drm_atomic_bridge_chain_post_disable()
712 			bridge = limit;  in drm_atomic_bridge_chain_post_disable()
717 static void drm_atomic_bridge_call_pre_enable(struct drm_bridge *bridge,  in drm_atomic_bridge_call_pre_enable()  argument
720 	if (old_state && bridge->funcs->atomic_pre_enable) {  in drm_atomic_bridge_call_pre_enable()
725 							bridge);  in drm_atomic_bridge_call_pre_enable()
729 		bridge->funcs->atomic_pre_enable(bridge, old_bridge_state);  in drm_atomic_bridge_call_pre_enable()
730 	} else if (bridge->funcs->pre_enable) {  in drm_atomic_bridge_call_pre_enable()
731 		bridge->funcs->pre_enable(bridge);  in drm_atomic_bridge_call_pre_enable()
751 void drm_atomic_bridge_chain_pre_enable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_pre_enable()  argument
757 	if (!bridge)  in drm_atomic_bridge_chain_pre_enable()
760 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_pre_enable()
765 			limit = bridge;  in drm_atomic_bridge_chain_pre_enable()
769 				if (next == bridge)  in drm_atomic_bridge_chain_pre_enable()
801 		if (iter == bridge)  in drm_atomic_bridge_chain_pre_enable()
819 void drm_atomic_bridge_chain_enable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_enable()  argument
824 	if (!bridge)  in drm_atomic_bridge_chain_enable()
827 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_enable()
828 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_atomic_bridge_chain_enable()
829 		if (bridge->funcs->atomic_enable) {  in drm_atomic_bridge_chain_enable()
834 								bridge);  in drm_atomic_bridge_chain_enable()
838 			bridge->funcs->atomic_enable(bridge, old_bridge_state);  in drm_atomic_bridge_chain_enable()
839 		} else if (bridge->funcs->enable) {  in drm_atomic_bridge_chain_enable()
840 			bridge->funcs->enable(bridge);  in drm_atomic_bridge_chain_enable()
846 static int drm_atomic_bridge_check(struct drm_bridge *bridge,  in drm_atomic_bridge_check()  argument
850 	if (bridge->funcs->atomic_check) {  in drm_atomic_bridge_check()
855 							       bridge);  in drm_atomic_bridge_check()
859 		ret = bridge->funcs->atomic_check(bridge, bridge_state,  in drm_atomic_bridge_check()
863 	} else if (bridge->funcs->mode_fixup) {  in drm_atomic_bridge_check()
864 		if (!bridge->funcs->mode_fixup(bridge, &crtc_state->mode,  in drm_atomic_bridge_check()
993 drm_atomic_bridge_chain_select_bus_fmts(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_select_bus_fmts()  argument
998 	struct drm_encoder *encoder = bridge->encoder;  in drm_atomic_bridge_chain_select_bus_fmts()
1043 		ret = select_bus_fmt_recursive(bridge, last_bridge, crtc_state,  in drm_atomic_bridge_chain_select_bus_fmts()
1055 drm_atomic_bridge_propagate_bus_flags(struct drm_bridge *bridge,  in drm_atomic_bridge_propagate_bus_flags()  argument
1063 	bridge_state = drm_atomic_get_new_bridge_state(state, bridge);  in drm_atomic_bridge_propagate_bus_flags()
1069 	next_bridge = drm_bridge_get_next_bridge(bridge);  in drm_atomic_bridge_propagate_bus_flags()
1120 int drm_atomic_bridge_chain_check(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_check()  argument
1129 	if (!bridge)  in drm_atomic_bridge_chain_check()
1132 	ret = drm_atomic_bridge_chain_select_bus_fmts(bridge, crtc_state,  in drm_atomic_bridge_chain_check()
1137 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_check()
1155 		if (iter == bridge)  in drm_atomic_bridge_chain_check()
1176 enum drm_connector_status drm_bridge_detect(struct drm_bridge *bridge)  in drm_bridge_detect()  argument
1178 	if (!(bridge->ops & DRM_BRIDGE_OP_DETECT))  in drm_bridge_detect()
1181 	return bridge->funcs->detect(bridge);  in drm_bridge_detect()
1199 int drm_bridge_get_modes(struct drm_bridge *bridge,  in drm_bridge_get_modes()  argument
1202 	if (!(bridge->ops & DRM_BRIDGE_OP_MODES))  in drm_bridge_get_modes()
1205 	return bridge->funcs->get_modes(bridge, connector);  in drm_bridge_get_modes()
1221 struct edid *drm_bridge_get_edid(struct drm_bridge *bridge,  in drm_bridge_get_edid()  argument
1224 	if (!(bridge->ops & DRM_BRIDGE_OP_EDID))  in drm_bridge_get_edid()
1227 	return bridge->funcs->get_edid(bridge, connector);  in drm_bridge_get_edid()
1249 void drm_bridge_hpd_enable(struct drm_bridge *bridge,  in drm_bridge_hpd_enable()  argument
1254 	if (!(bridge->ops & DRM_BRIDGE_OP_HPD))  in drm_bridge_hpd_enable()
1257 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_enable()
1259 	if (WARN(bridge->hpd_cb, "Hot plug detection already enabled\n"))  in drm_bridge_hpd_enable()
1262 	bridge->hpd_cb = cb;  in drm_bridge_hpd_enable()
1263 	bridge->hpd_data = data;  in drm_bridge_hpd_enable()
1265 	if (bridge->funcs->hpd_enable)  in drm_bridge_hpd_enable()
1266 		bridge->funcs->hpd_enable(bridge);  in drm_bridge_hpd_enable()
1269 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_enable()
1285 void drm_bridge_hpd_disable(struct drm_bridge *bridge)  in drm_bridge_hpd_disable()  argument
1287 	if (!(bridge->ops & DRM_BRIDGE_OP_HPD))  in drm_bridge_hpd_disable()
1290 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_disable()
1291 	if (bridge->funcs->hpd_disable)  in drm_bridge_hpd_disable()
1292 		bridge->funcs->hpd_disable(bridge);  in drm_bridge_hpd_disable()
1294 	bridge->hpd_cb = NULL;  in drm_bridge_hpd_disable()
1295 	bridge->hpd_data = NULL;  in drm_bridge_hpd_disable()
1296 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_disable()
1311 void drm_bridge_hpd_notify(struct drm_bridge *bridge,  in drm_bridge_hpd_notify()  argument
1314 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_notify()
1315 	if (bridge->hpd_cb)  in drm_bridge_hpd_notify()
1316 		bridge->hpd_cb(bridge->hpd_data, status);  in drm_bridge_hpd_notify()
1317 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_notify()
1333 	struct drm_bridge *bridge;  in of_drm_find_bridge()  local
1337 	list_for_each_entry(bridge, &bridge_list, list) {  in of_drm_find_bridge()
1338 		if (bridge->of_node == np) {  in of_drm_find_bridge()
1340 			return bridge;  in of_drm_find_bridge()
1361 		struct drm_bridge *bridge;  in drm_bridge_chains_info()  local
1365 		drm_for_each_bridge_in_chain(encoder, bridge) {  in drm_bridge_chains_info()
1367 				   bridge_idx, bridge->type, bridge->ops);  in drm_bridge_chains_info()
1370 			if (bridge->of_node)  in drm_bridge_chains_info()
1371 				drm_printf(&p, ", OF: %pOFfc", bridge->of_node);  in drm_bridge_chains_info()