102 void drm_bridge_add(struct drm_bridge *bridge)  in drm_bridge_add()  argument
104 	mutex_init(&bridge->hpd_mutex);  in drm_bridge_add()
107 	list_add_tail(&bridge->list, &bridge_list);  in drm_bridge_add()
117 void drm_bridge_remove(struct drm_bridge *bridge)  in drm_bridge_remove()  argument
120 	list_del_init(&bridge->list);  in drm_bridge_remove()
123 	mutex_destroy(&bridge->hpd_mutex);  in drm_bridge_remove()
130 	struct drm_bridge *bridge = drm_priv_to_bridge(obj);  in drm_bridge_atomic_duplicate_priv_state()  local
133 	state = bridge->funcs->atomic_duplicate_state(bridge);  in drm_bridge_atomic_duplicate_priv_state()
142 	struct drm_bridge *bridge = drm_priv_to_bridge(obj);  in drm_bridge_atomic_destroy_priv_state()  local
144 	bridge->funcs->atomic_destroy_state(bridge, state);  in drm_bridge_atomic_destroy_priv_state()
175 int drm_bridge_attach(struct drm_encoder *encoder, struct drm_bridge *bridge,  in drm_bridge_attach()  argument
181 	if (!encoder || !bridge)  in drm_bridge_attach()
187 	if (bridge->dev)  in drm_bridge_attach()
190 	bridge->dev = encoder->dev;  in drm_bridge_attach()
191 	bridge->encoder = encoder;  in drm_bridge_attach()
194 		list_add(&bridge->chain_node, &previous->chain_node);  in drm_bridge_attach()
196 		list_add(&bridge->chain_node, &encoder->bridge_chain);  in drm_bridge_attach()
198 	if (bridge->funcs->attach) {  in drm_bridge_attach()
199 		ret = bridge->funcs->attach(bridge, flags);  in drm_bridge_attach()
204 	if (bridge->funcs->atomic_reset) {  in drm_bridge_attach()
207 		state = bridge->funcs->atomic_reset(bridge);  in drm_bridge_attach()
213 		drm_atomic_private_obj_init(bridge->dev, &bridge->base,  in drm_bridge_attach()
221 	if (bridge->funcs->detach)  in drm_bridge_attach()
222 		bridge->funcs->detach(bridge);  in drm_bridge_attach()
225 	bridge->dev = NULL;  in drm_bridge_attach()
226 	bridge->encoder = NULL;  in drm_bridge_attach()
227 	list_del(&bridge->chain_node);  in drm_bridge_attach()
232 void drm_bridge_detach(struct drm_bridge *bridge)  in drm_bridge_detach()  argument
234 	if (WARN_ON(!bridge))  in drm_bridge_detach()
237 	if (WARN_ON(!bridge->dev))  in drm_bridge_detach()
240 	if (bridge->funcs->atomic_reset)  in drm_bridge_detach()
241 		drm_atomic_private_obj_fini(&bridge->base);  in drm_bridge_detach()
243 	if (bridge->funcs->detach)  in drm_bridge_detach()
244 		bridge->funcs->detach(bridge);  in drm_bridge_detach()
246 	list_del(&bridge->chain_node);  in drm_bridge_detach()
247 	bridge->dev = NULL;  in drm_bridge_detach()
354 bool drm_bridge_chain_mode_fixup(struct drm_bridge *bridge,  in drm_bridge_chain_mode_fixup()  argument
360 	if (!bridge)  in drm_bridge_chain_mode_fixup()
363 	encoder = bridge->encoder;  in drm_bridge_chain_mode_fixup()
364 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_fixup()
365 		if (!bridge->funcs->mode_fixup)  in drm_bridge_chain_mode_fixup()
368 		if (!bridge->funcs->mode_fixup(bridge, mode, adjusted_mode))  in drm_bridge_chain_mode_fixup()
393 drm_bridge_chain_mode_valid(struct drm_bridge *bridge,  in drm_bridge_chain_mode_valid()  argument
399 	if (!bridge)  in drm_bridge_chain_mode_valid()
402 	encoder = bridge->encoder;  in drm_bridge_chain_mode_valid()
403 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_valid()
406 		if (!bridge->funcs->mode_valid)  in drm_bridge_chain_mode_valid()
409 		ret = bridge->funcs->mode_valid(bridge, info, mode);  in drm_bridge_chain_mode_valid()
428 void drm_bridge_chain_disable(struct drm_bridge *bridge)  in drm_bridge_chain_disable()  argument
433 	if (!bridge)  in drm_bridge_chain_disable()
436 	encoder = bridge->encoder;  in drm_bridge_chain_disable()
441 		if (iter == bridge)  in drm_bridge_chain_disable()
458 void drm_bridge_chain_post_disable(struct drm_bridge *bridge)  in drm_bridge_chain_post_disable()  argument
462 	if (!bridge)  in drm_bridge_chain_post_disable()
465 	encoder = bridge->encoder;  in drm_bridge_chain_post_disable()
466 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_post_disable()
467 		if (bridge->funcs->post_disable)  in drm_bridge_chain_post_disable()
468 			bridge->funcs->post_disable(bridge);  in drm_bridge_chain_post_disable()
485 void drm_bridge_chain_mode_set(struct drm_bridge *bridge,  in drm_bridge_chain_mode_set()  argument
491 	if (!bridge)  in drm_bridge_chain_mode_set()
494 	encoder = bridge->encoder;  in drm_bridge_chain_mode_set()
495 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_mode_set()
496 		if (bridge->funcs->mode_set)  in drm_bridge_chain_mode_set()
497 			bridge->funcs->mode_set(bridge, mode, adjusted_mode);  in drm_bridge_chain_mode_set()
513 void drm_bridge_chain_pre_enable(struct drm_bridge *bridge)  in drm_bridge_chain_pre_enable()  argument
518 	if (!bridge)  in drm_bridge_chain_pre_enable()
521 	encoder = bridge->encoder;  in drm_bridge_chain_pre_enable()
539 void drm_bridge_chain_enable(struct drm_bridge *bridge)  in drm_bridge_chain_enable()  argument
543 	if (!bridge)  in drm_bridge_chain_enable()
546 	encoder = bridge->encoder;  in drm_bridge_chain_enable()
547 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_bridge_chain_enable()
548 		if (bridge->funcs->enable)  in drm_bridge_chain_enable()
549 			bridge->funcs->enable(bridge);  in drm_bridge_chain_enable()
566 void drm_atomic_bridge_chain_disable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_disable()  argument
572 	if (!bridge)  in drm_atomic_bridge_chain_disable()
575 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_disable()
591 		if (iter == bridge)  in drm_atomic_bridge_chain_disable()
610 void drm_atomic_bridge_chain_post_disable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_post_disable()  argument
615 	if (!bridge)  in drm_atomic_bridge_chain_post_disable()
618 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_post_disable()
619 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_atomic_bridge_chain_post_disable()
620 		if (bridge->funcs->atomic_post_disable) {  in drm_atomic_bridge_chain_post_disable()
625 								bridge);  in drm_atomic_bridge_chain_post_disable()
629 			bridge->funcs->atomic_post_disable(bridge,  in drm_atomic_bridge_chain_post_disable()
631 		} else if (bridge->funcs->post_disable) {  in drm_atomic_bridge_chain_post_disable()
632 			bridge->funcs->post_disable(bridge);  in drm_atomic_bridge_chain_post_disable()
651 void drm_atomic_bridge_chain_pre_enable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_pre_enable()  argument
657 	if (!bridge)  in drm_atomic_bridge_chain_pre_enable()
660 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_pre_enable()
676 		if (iter == bridge)  in drm_atomic_bridge_chain_pre_enable()
694 void drm_atomic_bridge_chain_enable(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_enable()  argument
699 	if (!bridge)  in drm_atomic_bridge_chain_enable()
702 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_enable()
703 	list_for_each_entry_from(bridge, &encoder->bridge_chain, chain_node) {  in drm_atomic_bridge_chain_enable()
704 		if (bridge->funcs->atomic_enable) {  in drm_atomic_bridge_chain_enable()
709 								bridge);  in drm_atomic_bridge_chain_enable()
713 			bridge->funcs->atomic_enable(bridge, old_bridge_state);  in drm_atomic_bridge_chain_enable()
714 		} else if (bridge->funcs->enable) {  in drm_atomic_bridge_chain_enable()
715 			bridge->funcs->enable(bridge);  in drm_atomic_bridge_chain_enable()
721 static int drm_atomic_bridge_check(struct drm_bridge *bridge,  in drm_atomic_bridge_check()  argument
725 	if (bridge->funcs->atomic_check) {  in drm_atomic_bridge_check()
730 							       bridge);  in drm_atomic_bridge_check()
734 		ret = bridge->funcs->atomic_check(bridge, bridge_state,  in drm_atomic_bridge_check()
738 	} else if (bridge->funcs->mode_fixup) {  in drm_atomic_bridge_check()
739 		if (!bridge->funcs->mode_fixup(bridge, &crtc_state->mode,  in drm_atomic_bridge_check()
868 drm_atomic_bridge_chain_select_bus_fmts(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_select_bus_fmts()  argument
873 	struct drm_encoder *encoder = bridge->encoder;  in drm_atomic_bridge_chain_select_bus_fmts()
918 		ret = select_bus_fmt_recursive(bridge, last_bridge, crtc_state,  in drm_atomic_bridge_chain_select_bus_fmts()
930 drm_atomic_bridge_propagate_bus_flags(struct drm_bridge *bridge,  in drm_atomic_bridge_propagate_bus_flags()  argument
938 	bridge_state = drm_atomic_get_new_bridge_state(state, bridge);  in drm_atomic_bridge_propagate_bus_flags()
944 	next_bridge = drm_bridge_get_next_bridge(bridge);  in drm_atomic_bridge_propagate_bus_flags()
995 int drm_atomic_bridge_chain_check(struct drm_bridge *bridge,  in drm_atomic_bridge_chain_check()  argument
1004 	if (!bridge)  in drm_atomic_bridge_chain_check()
1007 	ret = drm_atomic_bridge_chain_select_bus_fmts(bridge, crtc_state,  in drm_atomic_bridge_chain_check()
1012 	encoder = bridge->encoder;  in drm_atomic_bridge_chain_check()
1030 		if (iter == bridge)  in drm_atomic_bridge_chain_check()
1051 enum drm_connector_status drm_bridge_detect(struct drm_bridge *bridge)  in drm_bridge_detect()  argument
1053 	if (!(bridge->ops & DRM_BRIDGE_OP_DETECT))  in drm_bridge_detect()
1056 	return bridge->funcs->detect(bridge);  in drm_bridge_detect()
1074 int drm_bridge_get_modes(struct drm_bridge *bridge,  in drm_bridge_get_modes()  argument
1077 	if (!(bridge->ops & DRM_BRIDGE_OP_MODES))  in drm_bridge_get_modes()
1080 	return bridge->funcs->get_modes(bridge, connector);  in drm_bridge_get_modes()
1096 struct edid *drm_bridge_get_edid(struct drm_bridge *bridge,  in drm_bridge_get_edid()  argument
1099 	if (!(bridge->ops & DRM_BRIDGE_OP_EDID))  in drm_bridge_get_edid()
1102 	return bridge->funcs->get_edid(bridge, connector);  in drm_bridge_get_edid()
1124 void drm_bridge_hpd_enable(struct drm_bridge *bridge,  in drm_bridge_hpd_enable()  argument
1129 	if (!(bridge->ops & DRM_BRIDGE_OP_HPD))  in drm_bridge_hpd_enable()
1132 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_enable()
1134 	if (WARN(bridge->hpd_cb, "Hot plug detection already enabled\n"))  in drm_bridge_hpd_enable()
1137 	bridge->hpd_cb = cb;  in drm_bridge_hpd_enable()
1138 	bridge->hpd_data = data;  in drm_bridge_hpd_enable()
1140 	if (bridge->funcs->hpd_enable)  in drm_bridge_hpd_enable()
1141 		bridge->funcs->hpd_enable(bridge);  in drm_bridge_hpd_enable()
1144 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_enable()
1160 void drm_bridge_hpd_disable(struct drm_bridge *bridge)  in drm_bridge_hpd_disable()  argument
1162 	if (!(bridge->ops & DRM_BRIDGE_OP_HPD))  in drm_bridge_hpd_disable()
1165 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_disable()
1166 	if (bridge->funcs->hpd_disable)  in drm_bridge_hpd_disable()
1167 		bridge->funcs->hpd_disable(bridge);  in drm_bridge_hpd_disable()
1169 	bridge->hpd_cb = NULL;  in drm_bridge_hpd_disable()
1170 	bridge->hpd_data = NULL;  in drm_bridge_hpd_disable()
1171 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_disable()
1186 void drm_bridge_hpd_notify(struct drm_bridge *bridge,  in drm_bridge_hpd_notify()  argument
1189 	mutex_lock(&bridge->hpd_mutex);  in drm_bridge_hpd_notify()
1190 	if (bridge->hpd_cb)  in drm_bridge_hpd_notify()
1191 		bridge->hpd_cb(bridge->hpd_data, status);  in drm_bridge_hpd_notify()
1192 	mutex_unlock(&bridge->hpd_mutex);  in drm_bridge_hpd_notify()
1208 	struct drm_bridge *bridge;  in of_drm_find_bridge()  local
1212 	list_for_each_entry(bridge, &bridge_list, list) {  in of_drm_find_bridge()
1213 		if (bridge->of_node == np) {  in of_drm_find_bridge()
1215 			return bridge;  in of_drm_find_bridge()