103 void drm_bridge_add(struct drm_bridge *bridge)  in drm_bridge_add()  argument
105 	mutex_init(&bridge->hpd_mutex);  in drm_bridge_add()
108 	list_add_tail(&bridge->list, &bridge_list);  in drm_bridge_add()
118 void drm_bridge_remove(struct drm_bridge *bridge)  in drm_bridge_remove()  argument
121 	list_del_init(&bridge->list);  in drm_bridge_remove()
124 	mutex_destroy(&bridge->hpd_mutex);  in drm_bridge_remove()
131 	struct drm_bridge *bridge = drm_priv_to_bridge(obj);  in drm_bridge_atomic_duplicate_priv_state()  local
134 	state = bridge->funcs->atomic_duplicate_state(bridge);  in drm_bridge_atomic_duplicate_priv_state()
143 	struct drm_bridge *bridge = drm_priv_to_bridge(obj);  in drm_bridge_atomic_destroy_priv_state()  local
145 	bridge->funcs->atomic_destroy_state(bridge, state);  in drm_bridge_atomic_destroy_priv_state()
176 int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge,  in drm_bridge_attach()  argument
182 	if (!encoder || !bridge)  in drm_bridge_attach()
188 	if (bridge->dev)  in drm_bridge_attach()
191 	bridge->dev = encoder->dev;  in drm_bridge_attach()
192 	bridge->encoder = encoder;  in drm_bridge_attach()
195 		list_add(&bridge->chain_node, &previous->chain_node);  in drm_bridge_attach()
197 		list_add(&bridge->chain_node, &encoder->bridge_chain);  in drm_bridge_attach()
199 	if (bridge->funcs->attach) {  in drm_bridge_attach()
200 		ret = bridge->funcs->attach(bridge, flags);  in drm_bridge_attach()
205 	if (bridge->funcs->atomic_reset) {  in drm_bridge_attach()
208 		state = bridge->funcs->atomic_reset(bridge);  in drm_bridge_attach()
214 		drm_atomic_private_obj_init(bridge->dev, &bridge->base,  in drm_bridge_attach()
222 	if (bridge->funcs->detach)  in drm_bridge_attach()
223 		bridge->funcs->detach(bridge);  in drm_bridge_attach()
226 	bridge->dev = NULL;  in drm_bridge_attach()
227 	bridge->encoder = NULL;  in drm_bridge_attach()
228 	list_del(&bridge->chain_node);  in drm_bridge_attach()
232 		  bridge->of_node, encoder->name, ret);  in drm_bridge_attach()
242 void drm_bridge_detach(struct drm_bridge *bridge)  in drm_bridge_detach()  argument
244 	if (WARN_ON(!bridge))  in drm_bridge_detach()
247 	if (WARN_ON(!bridge->dev))  in drm_bridge_detach()
250 	if (bridge->funcs->atomic_reset)  in drm_bridge_detach()
251 		drm_atomic_private_obj_fini(&bridge->base);  in drm_bridge_detach()
253 	if (bridge->funcs->detach)  in drm_bridge_detach()
254 		bridge->funcs->detach(bridge);  in drm_bridge_detach()
256 	list_del(&bridge->chain_node);  in drm_bridge_detach()
257 	bridge->dev = NULL;  in drm_bridge_detach()
364 bool drm_bridge_chain_mode_fixup(struct drm_bridge *bridge,  in drm_bridge_chain_mode_fixup()  argument
370 	if (!bridge)  in drm_bridge_chain_mode_fixup()
373 	encoder = bridge->encoder;  in drm_bridge_chain_mode_fixup()
374 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_fixup()
375 		if (!bridge->funcs->mode_fixup)  in drm_bridge_chain_mode_fixup()
378 		if (!bridge->funcs->mode_fixup(bridge, mode, adjusted_mode))  in drm_bridge_chain_mode_fixup()
403 drm_bridge_chain_mode_valid(struct drm_bridge *bridge,  in drm_bridge_chain_mode_valid()  argument
409 	if (!bridge)  in drm_bridge_chain_mode_valid()
412 	encoder = bridge->encoder;  in drm_bridge_chain_mode_valid()
413 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_valid()
416 		if (!bridge->funcs->mode_valid)  in drm_bridge_chain_mode_valid()
419 		ret = bridge->funcs->mode_valid(bridge, info, mode);  in drm_bridge_chain_mode_valid()
438 void drm_bridge_chain_disable(struct drm_bridge *bridge)  in drm_bridge_chain_disable()  argument
443 	if (!bridge)  in drm_bridge_chain_disable()
446 	encoder = bridge->encoder;  in drm_bridge_chain_disable()
451 		if (iter == bridge)  in drm_bridge_chain_disable()
468 void drm_bridge_chain_post_disable(struct drm_bridge *bridge)  in drm_bridge_chain_post_disable()  argument
472 	if (!bridge)  in drm_bridge_chain_post_disable()
475 	encoder = bridge->encoder;  in drm_bridge_chain_post_disable()
476 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_post_disable()
477 		if (bridge->funcs->post_disable)  in drm_bridge_chain_post_disable()
478 			bridge->funcs->post_disable(bridge);  in drm_bridge_chain_post_disable()
495 void drm_bridge_chain_mode_set(struct drm_bridge *bridge,  in drm_bridge_chain_mode_set()  argument
501 	if (!bridge)  in drm_bridge_chain_mode_set()
504 	encoder = bridge->encoder;  in drm_bridge_chain_mode_set()
505 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_set()
506 		if (bridge->funcs->mode_set)  in drm_bridge_chain_mode_set()
507 			bridge->funcs->mode_set(bridge, mode, adjusted_mode);  in drm_bridge_chain_mode_set()
523 void drm_bridge_chain_pre_enable(struct drm_bridge *bridge)  in drm_bridge_chain_pre_enable()  argument
528 	if (!bridge)  in drm_bridge_chain_pre_enable()
531 	encoder = bridge->encoder;  in drm_bridge_chain_pre_enable()
536 		if (iter == bridge)  in drm_bridge_chain_pre_enable()
552 void drm_bridge_chain_enable(struct drm_bridge *bridge)  in drm_bridge_chain_enable()  argument
556 	if (!bridge)  in drm_bridge_chain_enable()
559 	encoder = bridge->encoder;  in drm_bridge_chain_enable()
560 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_enable()
561 		if (bridge->funcs->enable)  in drm_bridge_chain_enable()
562 			bridge->funcs->enable(bridge);  in drm_bridge_chain_enable()
579 void drm_atomic_bridge_chain_disable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_disable()  argument
585 	if (!bridge)  in drm_atomic_bridge_chain_disable()
588 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_disable()
604 		if (iter == bridge)  in drm_atomic_bridge_chain_disable()
623 void drm_atomic_bridge_chain_post_disable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_post_disable()  argument
628 	if (!bridge)  in drm_atomic_bridge_chain_post_disable()
631 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_post_disable()
632 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_atomic_bridge_chain_post_disable()
633 		if (bridge->funcs->atomic_post_disable) {  in drm_atomic_bridge_chain_post_disable()
638 								bridge);  in drm_atomic_bridge_chain_post_disable()
642 			bridge->funcs->atomic_post_disable(bridge,  in drm_atomic_bridge_chain_post_disable()
644 		} else if (bridge->funcs->post_disable) {  in drm_atomic_bridge_chain_post_disable()
645 			bridge->funcs->post_disable(bridge);  in drm_atomic_bridge_chain_post_disable()
664 void drm_atomic_bridge_chain_pre_enable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_pre_enable()  argument
670 	if (!bridge)  in drm_atomic_bridge_chain_pre_enable()
673 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_pre_enable()
689 		if (iter == bridge)  in drm_atomic_bridge_chain_pre_enable()
707 void drm_atomic_bridge_chain_enable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_enable()  argument
712 	if (!bridge)  in drm_atomic_bridge_chain_enable()
715 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_enable()
716 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_atomic_bridge_chain_enable()
717 		if (bridge->funcs->atomic_enable) {  in drm_atomic_bridge_chain_enable()
722 								bridge);  in drm_atomic_bridge_chain_enable()
726 			bridge->funcs->atomic_enable(bridge, old_bridge_state);  in drm_atomic_bridge_chain_enable()
727 		} else if (bridge->funcs->enable) {  in drm_atomic_bridge_chain_enable()
728 			bridge->funcs->enable(bridge);  in drm_atomic_bridge_chain_enable()
734 static int drm_atomic_bridge_check(struct drm_bridge *bridge,  in drm_atomic_bridge_check()  argument
738 	if (bridge->funcs->atomic_check) {  in drm_atomic_bridge_check()
743 							       bridge);  in drm_atomic_bridge_check()
747 		ret = bridge->funcs->atomic_check(bridge, bridge_state,  in drm_atomic_bridge_check()
751 	} else if (bridge->funcs->mode_fixup) {  in drm_atomic_bridge_check()
752 		if (!bridge->funcs->mode_fixup(bridge, &crtc_state->mode,  in drm_atomic_bridge_check()
881 drm_atomic_bridge_chain_select_bus_fmts(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_select_bus_fmts()  argument
886 	struct drm_encoder *encoder = bridge->encoder;  in drm_atomic_bridge_chain_select_bus_fmts()
931 		ret = select_bus_fmt_recursive(bridge, last_bridge, crtc_state,  in drm_atomic_bridge_chain_select_bus_fmts()
943 drm_atomic_bridge_propagate_bus_flags(struct drm_bridge *bridge,  in drm_atomic_bridge_propagate_bus_flags()  argument
951 	bridge_state = drm_atomic_get_new_bridge_state(state, bridge);  in drm_atomic_bridge_propagate_bus_flags()
957 	next_bridge = drm_bridge_get_next_bridge(bridge);  in drm_atomic_bridge_propagate_bus_flags()
1008 int drm_atomic_bridge_chain_check(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_check()  argument
1017 	if (!bridge)  in drm_atomic_bridge_chain_check()
1020 	ret = drm_atomic_bridge_chain_select_bus_fmts(bridge, crtc_state,  in drm_atomic_bridge_chain_check()
1025 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_check()
1043 		if (iter == bridge)  in drm_atomic_bridge_chain_check()
1064 enum drm_connector_status drm_bridge_detect(struct drm_bridge *bridge)  in drm_bridge_detect()  argument
1066 	if (!(bridge->ops & DRM_BRIDGE_OP_DETECT))  in drm_bridge_detect()
1069 	return bridge->funcs->detect(bridge);  in drm_bridge_detect()
1087 int drm_bridge_get_modes(struct drm_bridge *bridge,  in drm_bridge_get_modes()  argument
1090 	if (!(bridge->ops & DRM_BRIDGE_OP_MODES))  in drm_bridge_get_modes()
1093 	return bridge->funcs->get_modes(bridge, connector);  in drm_bridge_get_modes()
1109 struct edid *drm_bridge_get_edid(struct drm_bridge *bridge,  in drm_bridge_get_edid()  argument
1112 	if (!(bridge->ops & DRM_BRIDGE_OP_EDID))  in drm_bridge_get_edid()
1115 	return bridge->funcs->get_edid(bridge, connector);  in drm_bridge_get_edid()
1137 void drm_bridge_hpd_enable(struct drm_bridge *bridge,  in drm_bridge_hpd_enable()  argument
1142 	if (!(bridge->ops & DRM_BRIDGE_OP_HPD))  in drm_bridge_hpd_enable()
1145 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_enable()
1147 	if (WARN(bridge->hpd_cb, "Hot plug detection already enabled\n"))  in drm_bridge_hpd_enable()
1150 	bridge->hpd_cb = cb;  in drm_bridge_hpd_enable()
1151 	bridge->hpd_data = data;  in drm_bridge_hpd_enable()
1153 	if (bridge->funcs->hpd_enable)  in drm_bridge_hpd_enable()
1154 		bridge->funcs->hpd_enable(bridge);  in drm_bridge_hpd_enable()
1157 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_enable()
1173 void drm_bridge_hpd_disable(struct drm_bridge *bridge)  in drm_bridge_hpd_disable()  argument
1175 	if (!(bridge->ops & DRM_BRIDGE_OP_HPD))  in drm_bridge_hpd_disable()
1178 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_disable()
1179 	if (bridge->funcs->hpd_disable)  in drm_bridge_hpd_disable()
1180 		bridge->funcs->hpd_disable(bridge);  in drm_bridge_hpd_disable()
1182 	bridge->hpd_cb = NULL;  in drm_bridge_hpd_disable()
1183 	bridge->hpd_data = NULL;  in drm_bridge_hpd_disable()
1184 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_disable()
1199 void drm_bridge_hpd_notify(struct drm_bridge *bridge,  in drm_bridge_hpd_notify()  argument
1202 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_notify()
1203 	if (bridge->hpd_cb)  in drm_bridge_hpd_notify()
1204 		bridge->hpd_cb(bridge->hpd_data, status);  in drm_bridge_hpd_notify()
1205 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_notify()
1221 	struct drm_bridge *bridge;  in of_drm_find_bridge()  local
1225 	list_for_each_entry(bridge, &bridge_list, list) {  in of_drm_find_bridge()
1226 		if (bridge->of_node == np) {  in of_drm_find_bridge()
1228 			return bridge;  in of_drm_find_bridge()