164 void drm_bridge_add(struct drm_bridge *bridge)  in drm_bridge_add()  argument
166 	mutex_init(&bridge->hpd_mutex);  in drm_bridge_add()
169 	list_add_tail(&bridge->list, &bridge_list);  in drm_bridge_add()
174 static void drm_bridge_remove_void(void *bridge)  in drm_bridge_remove_void()  argument
176 	drm_bridge_remove(bridge);  in drm_bridge_remove_void()
190 int devm_drm_bridge_add(struct device *dev, struct drm_bridge *bridge)  in devm_drm_bridge_add()  argument
192 	drm_bridge_add(bridge);  in devm_drm_bridge_add()
193 	return devm_add_action_or_reset(dev, drm_bridge_remove_void, bridge);  in devm_drm_bridge_add()
202 void drm_bridge_remove(struct drm_bridge *bridge)  in drm_bridge_remove()  argument
205 	list_del_init(&bridge->list);  in drm_bridge_remove()
208 	mutex_destroy(&bridge->hpd_mutex);  in drm_bridge_remove()
215 	struct drm_bridge *bridge = drm_priv_to_bridge(obj);  in drm_bridge_atomic_duplicate_priv_state()  local
218 	state = bridge->funcs->atomic_duplicate_state(bridge);  in drm_bridge_atomic_duplicate_priv_state()
227 	struct drm_bridge *bridge = drm_priv_to_bridge(obj);  in drm_bridge_atomic_destroy_priv_state()  local
229 	bridge->funcs->atomic_destroy_state(bridge, state);  in drm_bridge_atomic_destroy_priv_state()
260 int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge,  in drm_bridge_attach()  argument
266 	if (!encoder || !bridge)  in drm_bridge_attach()
272 	if (bridge->dev)  in drm_bridge_attach()
275 	bridge->dev = encoder->dev;  in drm_bridge_attach()
276 	bridge->encoder = encoder;  in drm_bridge_attach()
279 		list_add(&bridge->chain_node, &previous->chain_node);  in drm_bridge_attach()
281 		list_add(&bridge->chain_node, &encoder->bridge_chain);  in drm_bridge_attach()
283 	if (bridge->funcs->attach) {  in drm_bridge_attach()
284 		ret = bridge->funcs->attach(bridge, flags);  in drm_bridge_attach()
289 	if (bridge->funcs->atomic_reset) {  in drm_bridge_attach()
292 		state = bridge->funcs->atomic_reset(bridge);  in drm_bridge_attach()
298 		drm_atomic_private_obj_init(bridge->dev, &bridge->base,  in drm_bridge_attach()
306 	if (bridge->funcs->detach)  in drm_bridge_attach()
307 		bridge->funcs->detach(bridge);  in drm_bridge_attach()
310 	bridge->dev = NULL;  in drm_bridge_attach()
311 	bridge->encoder = NULL;  in drm_bridge_attach()
312 	list_del(&bridge->chain_node);  in drm_bridge_attach()
316 		  bridge->of_node, encoder->name, ret);  in drm_bridge_attach()
326 void drm_bridge_detach(struct drm_bridge *bridge)  in drm_bridge_detach()  argument
328 	if (WARN_ON(!bridge))  in drm_bridge_detach()
331 	if (WARN_ON(!bridge->dev))  in drm_bridge_detach()
334 	if (bridge->funcs->atomic_reset)  in drm_bridge_detach()
335 		drm_atomic_private_obj_fini(&bridge->base);  in drm_bridge_detach()
337 	if (bridge->funcs->detach)  in drm_bridge_detach()
338 		bridge->funcs->detach(bridge);  in drm_bridge_detach()
340 	list_del(&bridge->chain_node);  in drm_bridge_detach()
341 	bridge->dev = NULL;  in drm_bridge_detach()
448 bool drm_bridge_chain_mode_fixup(struct drm_bridge *bridge,  in drm_bridge_chain_mode_fixup()  argument
454 	if (!bridge)  in drm_bridge_chain_mode_fixup()
457 	encoder = bridge->encoder;  in drm_bridge_chain_mode_fixup()
458 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_fixup()
459 		if (!bridge->funcs->mode_fixup)  in drm_bridge_chain_mode_fixup()
462 		if (!bridge->funcs->mode_fixup(bridge, mode, adjusted_mode))  in drm_bridge_chain_mode_fixup()
487 drm_bridge_chain_mode_valid(struct drm_bridge *bridge,  in drm_bridge_chain_mode_valid()  argument
493 	if (!bridge)  in drm_bridge_chain_mode_valid()
496 	encoder = bridge->encoder;  in drm_bridge_chain_mode_valid()
497 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_valid()
500 		if (!bridge->funcs->mode_valid)  in drm_bridge_chain_mode_valid()
503 		ret = bridge->funcs->mode_valid(bridge, info, mode);  in drm_bridge_chain_mode_valid()
522 void drm_bridge_chain_disable(struct drm_bridge *bridge)  in drm_bridge_chain_disable()  argument
527 	if (!bridge)  in drm_bridge_chain_disable()
530 	encoder = bridge->encoder;  in drm_bridge_chain_disable()
535 		if (iter == bridge)  in drm_bridge_chain_disable()
552 void drm_bridge_chain_post_disable(struct drm_bridge *bridge)  in drm_bridge_chain_post_disable()  argument
556 	if (!bridge)  in drm_bridge_chain_post_disable()
559 	encoder = bridge->encoder;  in drm_bridge_chain_post_disable()
560 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_post_disable()
561 		if (bridge->funcs->post_disable)  in drm_bridge_chain_post_disable()
562 			bridge->funcs->post_disable(bridge);  in drm_bridge_chain_post_disable()
579 void drm_bridge_chain_mode_set(struct drm_bridge *bridge,  in drm_bridge_chain_mode_set()  argument
585 	if (!bridge)  in drm_bridge_chain_mode_set()
588 	encoder = bridge->encoder;  in drm_bridge_chain_mode_set()
589 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_set()
590 		if (bridge->funcs->mode_set)  in drm_bridge_chain_mode_set()
591 			bridge->funcs->mode_set(bridge, mode, adjusted_mode);  in drm_bridge_chain_mode_set()
607 void drm_bridge_chain_pre_enable(struct drm_bridge *bridge)  in drm_bridge_chain_pre_enable()  argument
612 	if (!bridge)  in drm_bridge_chain_pre_enable()
615 	encoder = bridge->encoder;  in drm_bridge_chain_pre_enable()
620 		if (iter == bridge)  in drm_bridge_chain_pre_enable()
636 void drm_bridge_chain_enable(struct drm_bridge *bridge)  in drm_bridge_chain_enable()  argument
640 	if (!bridge)  in drm_bridge_chain_enable()
643 	encoder = bridge->encoder;  in drm_bridge_chain_enable()
644 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_enable()
645 		if (bridge->funcs->enable)  in drm_bridge_chain_enable()
646 			bridge->funcs->enable(bridge);  in drm_bridge_chain_enable()
663 void drm_atomic_bridge_chain_disable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_disable()  argument
669 	if (!bridge)  in drm_atomic_bridge_chain_disable()
672 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_disable()
688 		if (iter == bridge)  in drm_atomic_bridge_chain_disable()
707 void drm_atomic_bridge_chain_post_disable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_post_disable()  argument
712 	if (!bridge)  in drm_atomic_bridge_chain_post_disable()
715 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_post_disable()
716 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_atomic_bridge_chain_post_disable()
717 		if (bridge->funcs->atomic_post_disable) {  in drm_atomic_bridge_chain_post_disable()
722 								bridge);  in drm_atomic_bridge_chain_post_disable()
726 			bridge->funcs->atomic_post_disable(bridge,  in drm_atomic_bridge_chain_post_disable()
728 		} else if (bridge->funcs->post_disable) {  in drm_atomic_bridge_chain_post_disable()
729 			bridge->funcs->post_disable(bridge);  in drm_atomic_bridge_chain_post_disable()
748 void drm_atomic_bridge_chain_pre_enable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_pre_enable()  argument
754 	if (!bridge)  in drm_atomic_bridge_chain_pre_enable()
757 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_pre_enable()
773 		if (iter == bridge)  in drm_atomic_bridge_chain_pre_enable()
791 void drm_atomic_bridge_chain_enable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_enable()  argument
796 	if (!bridge)  in drm_atomic_bridge_chain_enable()
799 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_enable()
800 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_atomic_bridge_chain_enable()
801 		if (bridge->funcs->atomic_enable) {  in drm_atomic_bridge_chain_enable()
806 								bridge);  in drm_atomic_bridge_chain_enable()
810 			bridge->funcs->atomic_enable(bridge, old_bridge_state);  in drm_atomic_bridge_chain_enable()
811 		} else if (bridge->funcs->enable) {  in drm_atomic_bridge_chain_enable()
812 			bridge->funcs->enable(bridge);  in drm_atomic_bridge_chain_enable()
818 static int drm_atomic_bridge_check(struct drm_bridge *bridge,  in drm_atomic_bridge_check()  argument
822 	if (bridge->funcs->atomic_check) {  in drm_atomic_bridge_check()
827 							       bridge);  in drm_atomic_bridge_check()
831 		ret = bridge->funcs->atomic_check(bridge, bridge_state,  in drm_atomic_bridge_check()
835 	} else if (bridge->funcs->mode_fixup) {  in drm_atomic_bridge_check()
836 		if (!bridge->funcs->mode_fixup(bridge, &crtc_state->mode,  in drm_atomic_bridge_check()
965 drm_atomic_bridge_chain_select_bus_fmts(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_select_bus_fmts()  argument
970 	struct drm_encoder *encoder = bridge->encoder;  in drm_atomic_bridge_chain_select_bus_fmts()
1015 		ret = select_bus_fmt_recursive(bridge, last_bridge, crtc_state,  in drm_atomic_bridge_chain_select_bus_fmts()
1027 drm_atomic_bridge_propagate_bus_flags(struct drm_bridge *bridge,  in drm_atomic_bridge_propagate_bus_flags()  argument
1035 	bridge_state = drm_atomic_get_new_bridge_state(state, bridge);  in drm_atomic_bridge_propagate_bus_flags()
1041 	next_bridge = drm_bridge_get_next_bridge(bridge);  in drm_atomic_bridge_propagate_bus_flags()
1092 int drm_atomic_bridge_chain_check(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_check()  argument
1101 	if (!bridge)  in drm_atomic_bridge_chain_check()
1104 	ret = drm_atomic_bridge_chain_select_bus_fmts(bridge, crtc_state,  in drm_atomic_bridge_chain_check()
1109 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_check()
1127 		if (iter == bridge)  in drm_atomic_bridge_chain_check()
1148 enum drm_connector_status drm_bridge_detect(struct drm_bridge *bridge)  in drm_bridge_detect()  argument
1150 	if (!(bridge->ops & DRM_BRIDGE_OP_DETECT))  in drm_bridge_detect()
1153 	return bridge->funcs->detect(bridge);  in drm_bridge_detect()
1171 int drm_bridge_get_modes(struct drm_bridge *bridge,  in drm_bridge_get_modes()  argument
1174 	if (!(bridge->ops & DRM_BRIDGE_OP_MODES))  in drm_bridge_get_modes()
1177 	return bridge->funcs->get_modes(bridge, connector);  in drm_bridge_get_modes()
1193 struct edid *drm_bridge_get_edid(struct drm_bridge *bridge,  in drm_bridge_get_edid()  argument
1196 	if (!(bridge->ops & DRM_BRIDGE_OP_EDID))  in drm_bridge_get_edid()
1199 	return bridge->funcs->get_edid(bridge, connector);  in drm_bridge_get_edid()
1221 void drm_bridge_hpd_enable(struct drm_bridge *bridge,  in drm_bridge_hpd_enable()  argument
1226 	if (!(bridge->ops & DRM_BRIDGE_OP_HPD))  in drm_bridge_hpd_enable()
1229 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_enable()
1231 	if (WARN(bridge->hpd_cb, "Hot plug detection already enabled\n"))  in drm_bridge_hpd_enable()
1234 	bridge->hpd_cb = cb;  in drm_bridge_hpd_enable()
1235 	bridge->hpd_data = data;  in drm_bridge_hpd_enable()
1237 	if (bridge->funcs->hpd_enable)  in drm_bridge_hpd_enable()
1238 		bridge->funcs->hpd_enable(bridge);  in drm_bridge_hpd_enable()
1241 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_enable()
1257 void drm_bridge_hpd_disable(struct drm_bridge *bridge)  in drm_bridge_hpd_disable()  argument
1259 	if (!(bridge->ops & DRM_BRIDGE_OP_HPD))  in drm_bridge_hpd_disable()
1262 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_disable()
1263 	if (bridge->funcs->hpd_disable)  in drm_bridge_hpd_disable()
1264 		bridge->funcs->hpd_disable(bridge);  in drm_bridge_hpd_disable()
1266 	bridge->hpd_cb = NULL;  in drm_bridge_hpd_disable()
1267 	bridge->hpd_data = NULL;  in drm_bridge_hpd_disable()
1268 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_disable()
1283 void drm_bridge_hpd_notify(struct drm_bridge *bridge,  in drm_bridge_hpd_notify()  argument
1286 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_notify()
1287 	if (bridge->hpd_cb)  in drm_bridge_hpd_notify()
1288 		bridge->hpd_cb(bridge->hpd_data, status);  in drm_bridge_hpd_notify()
1289 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_notify()
1305 	struct drm_bridge *bridge;  in of_drm_find_bridge()  local
1309 	list_for_each_entry(bridge, &bridge_list, list) {  in of_drm_find_bridge()
1310 		if (bridge->of_node == np) {  in of_drm_find_bridge()
1312 			return bridge;  in of_drm_find_bridge()