57  * track of a per-connector hpd interrupt.
91 			   struct drm_connector *connector,  in drm_mode_validate_pipeline()  argument
95 	struct drm_device *dev = connector->dev;  in drm_mode_validate_pipeline()
99 	/* Step 1: Validate against connector */  in drm_mode_validate_pipeline()
100 	ret = drm_connector_mode_valid(connector, mode, ctx, status);  in drm_mode_validate_pipeline()
105 	drm_connector_for_each_possible_encoder(connector, encoder) {  in drm_mode_validate_pipeline()
120 						      &connector->display_info,  in drm_mode_validate_pipeline()
145 static int drm_helper_probe_add_cmdline_mode(struct drm_connector *connector)  in drm_helper_probe_add_cmdline_mode()  argument
150 	cmdline_mode = &connector->cmdline_mode;  in drm_helper_probe_add_cmdline_mode()
155 	list_for_each_entry(mode, &connector->probed_modes, head) {  in drm_helper_probe_add_cmdline_mode()
171 	mode = drm_mode_create_from_cmdline_mode(connector->dev,  in drm_helper_probe_add_cmdline_mode()
176 	drm_mode_probed_add(connector, mode);  in drm_helper_probe_add_cmdline_mode()
204 drm_connector_mode_valid(struct drm_connector *connector,  in drm_connector_mode_valid()  argument
210 		connector->helper_private;  in drm_connector_mode_valid()
216 		ret = connector_funcs->mode_valid_ctx(connector, mode, ctx,  in drm_connector_mode_valid()
219 		*status = connector_funcs->mode_valid(connector, mode);  in drm_connector_mode_valid()
245 	struct drm_connector *connector;  in drm_kms_helper_poll_enable()  local
253 	drm_for_each_connector_iter(connector, &conn_iter) {  in drm_kms_helper_poll_enable()
254 		if (connector->polled & (DRM_CONNECTOR_POLL_CONNECT |  in drm_kms_helper_poll_enable()
281 drm_helper_probe_detect_ctx(struct drm_connector *connector, bool force)  in drm_helper_probe_detect_ctx()  argument
283 	const struct drm_connector_helper_funcs *funcs = connector->helper_private;  in drm_helper_probe_detect_ctx()
290 	ret = drm_modeset_lock(&connector->dev->mode_config.connection_mutex, &ctx);  in drm_helper_probe_detect_ctx()
293 			ret = funcs->detect_ctx(connector, &ctx, force);  in drm_helper_probe_detect_ctx()
294 		else if (connector->funcs->detect)  in drm_helper_probe_detect_ctx()
295 			ret = connector->funcs->detect(connector, force);  in drm_helper_probe_detect_ctx()
308 	if (ret != connector->status)  in drm_helper_probe_detect_ctx()
309 		connector->epoch_counter += 1;  in drm_helper_probe_detect_ctx()
318  * drm_helper_probe_detect - probe connector status
319  * @connector: connector to probe
323  * This function calls the detect callbacks of the connector.
328 drm_helper_probe_detect(struct drm_connector *connector,  in drm_helper_probe_detect()  argument
332 	const struct drm_connector_helper_funcs *funcs = connector->helper_private;  in drm_helper_probe_detect()
333 	struct drm_device *dev = connector->dev;  in drm_helper_probe_detect()
337 		return drm_helper_probe_detect_ctx(connector, force);  in drm_helper_probe_detect()
344 		ret = funcs->detect_ctx(connector, ctx, force);  in drm_helper_probe_detect()
345 	else if (connector->funcs->detect)  in drm_helper_probe_detect()
346 		ret = connector->funcs->detect(connector, force);  in drm_helper_probe_detect()
350 	if (ret != connector->status)  in drm_helper_probe_detect()
351 		connector->epoch_counter += 1;  in drm_helper_probe_detect()
359  * @connector: connector to probe
363  * Based on the helper callbacks implemented by @connector in struct
365  * be added to the connector's probed_modes list, then culled (based on validity
374  * 1. All modes currently on the connector's modes list are marked as stale
376  * 2. New modes are added to the connector's probed_modes list with
381  *    - if the connector status is connector_status_connected, standard
399  *    - drm_mode_validate_flag() checks the modes against basic connector
409  * 5. Any mode whose status is not OK is pruned from the connector's modes list,
414  * The number of modes found on @connector.
416 int drm_helper_probe_single_connector_modes(struct drm_connector *connector,  in drm_helper_probe_single_connector_modes()  argument
419 	struct drm_device *dev = connector->dev;  in drm_helper_probe_single_connector_modes()
422 		connector->helper_private;  in drm_helper_probe_single_connector_modes()
433 	DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id,  in drm_helper_probe_single_connector_modes()
434 			connector->name);  in drm_helper_probe_single_connector_modes()
445 	list_for_each_entry(mode, &connector->modes, head)  in drm_helper_probe_single_connector_modes()
448 	old_status = connector->status;  in drm_helper_probe_single_connector_modes()
450 	if (connector->force) {  in drm_helper_probe_single_connector_modes()
451 		if (connector->force == DRM_FORCE_ON ||  in drm_helper_probe_single_connector_modes()
452 		    connector->force == DRM_FORCE_ON_DIGITAL)  in drm_helper_probe_single_connector_modes()
453 			connector->status = connector_status_connected;  in drm_helper_probe_single_connector_modes()
455 			connector->status = connector_status_disconnected;  in drm_helper_probe_single_connector_modes()
456 		if (connector->funcs->force)  in drm_helper_probe_single_connector_modes()
457 			connector->funcs->force(connector);  in drm_helper_probe_single_connector_modes()
459 		ret = drm_helper_probe_detect(connector, &ctx, true);  in drm_helper_probe_single_connector_modes()
464 		} else if (WARN(ret < 0, "Invalid return value %i for connector detection\n", ret))  in drm_helper_probe_single_connector_modes()
467 		connector->status = ret;  in drm_helper_probe_single_connector_modes()
476 	if (old_status != connector->status) {  in drm_helper_probe_single_connector_modes()
477 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",  in drm_helper_probe_single_connector_modes()
478 			      connector->base.id,  in drm_helper_probe_single_connector_modes()
479 			      connector->name,  in drm_helper_probe_single_connector_modes()
481 			      drm_get_connector_status_name(connector->status));  in drm_helper_probe_single_connector_modes()
501 	if (connector->status == connector_status_disconnected) {  in drm_helper_probe_single_connector_modes()
502 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n",  in drm_helper_probe_single_connector_modes()
503 			connector->base.id, connector->name);  in drm_helper_probe_single_connector_modes()
504 		drm_connector_update_edid_property(connector, NULL);  in drm_helper_probe_single_connector_modes()
509 	count = (*connector_funcs->get_modes)(connector);  in drm_helper_probe_single_connector_modes()
515 	if (count == 0 && connector->status == connector_status_connected)  in drm_helper_probe_single_connector_modes()
516 		count = drm_add_override_edid_modes(connector);  in drm_helper_probe_single_connector_modes()
518 	if (count == 0 && connector->status == connector_status_connected)  in drm_helper_probe_single_connector_modes()
519 		count = drm_add_modes_noedid(connector, 1024, 768);  in drm_helper_probe_single_connector_modes()
520 	count += drm_helper_probe_add_cmdline_mode(connector);  in drm_helper_probe_single_connector_modes()
524 	drm_connector_list_update(connector);  in drm_helper_probe_single_connector_modes()
526 	if (connector->interlace_allowed)  in drm_helper_probe_single_connector_modes()
528 	if (connector->doublescan_allowed)  in drm_helper_probe_single_connector_modes()
530 	if (connector->stereo_allowed)  in drm_helper_probe_single_connector_modes()
533 	list_for_each_entry(mode, &connector->modes, head) {  in drm_helper_probe_single_connector_modes()
549 		ret = drm_mode_validate_pipeline(mode, connector, &ctx,  in drm_helper_probe_single_connector_modes()
566 		mode->status = drm_mode_validate_ycbcr420(mode, connector);  in drm_helper_probe_single_connector_modes()
570 	drm_mode_prune_invalid(dev, &connector->modes, verbose_prune);  in drm_helper_probe_single_connector_modes()
575 	if (list_empty(&connector->modes))  in drm_helper_probe_single_connector_modes()
578 	drm_mode_sort(&connector->modes);  in drm_helper_probe_single_connector_modes()
580 	DRM_DEBUG_KMS("[CONNECTOR:%d:%s] probed modes :\n", connector->base.id,  in drm_helper_probe_single_connector_modes()
581 			connector->name);  in drm_helper_probe_single_connector_modes()
582 	list_for_each_entry(mode, &connector->modes, head) {  in drm_helper_probe_single_connector_modes()
593  * @dev: drm_device whose connector state changed
622 	struct drm_connector *connector;  in output_poll_execute()  local
643 	drm_for_each_connector_iter(connector, &conn_iter) {  in output_poll_execute()
645 		if (connector->force)  in output_poll_execute()
650 		if (!connector->polled || connector->polled == DRM_CONNECTOR_POLL_HPD)  in output_poll_execute()
653 		old_status = connector->status;  in output_poll_execute()
657 		    !(connector->polled & DRM_CONNECTOR_POLL_DISCONNECT))  in output_poll_execute()
662 		connector->status = drm_helper_probe_detect(connector, NULL, false);  in output_poll_execute()
663 		if (old_status != connector->status) {  in output_poll_execute()
679 			if (connector->status == connector_status_unknown) {  in output_poll_execute()
680 				connector->status = old_status;  in output_poll_execute()
685 			new = drm_get_connector_status_name(connector->status);  in output_poll_execute()
687 			DRM_DEBUG_KMS("[CONNECTOR:%d:%s] "  in output_poll_execute()
689 				      connector->base.id,  in output_poll_execute()
690 				      connector->name,  in output_poll_execute()
718  * connector ->detect hook.
766  * Note that a connector can be both polled and probed from the hotplug handler,
802  * interrupts for each connector.
804  * Drivers which support hotplug interrupts for each connector individually and
806  * directly call drm_kms_helper_hotplug_event() in case the connector state
812  * Note that a connector can be both polled and probed from the hotplug handler,
817 	struct drm_connector *connector;  in drm_helper_hpd_irq_event()  local
828 	drm_for_each_connector_iter(connector, &conn_iter) {  in drm_helper_hpd_irq_event()
830 		if (!(connector->polled & DRM_CONNECTOR_POLL_HPD))  in drm_helper_hpd_irq_event()
833 		old_status = connector->status;  in drm_helper_hpd_irq_event()
835 		old_epoch_counter = connector->epoch_counter;  in drm_helper_hpd_irq_event()
837 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] Old epoch counter %llu\n", connector->base.id,  in drm_helper_hpd_irq_event()
838 			      connector->name,  in drm_helper_hpd_irq_event()
841 		connector->status = drm_helper_probe_detect(connector, NULL, false);  in drm_helper_hpd_irq_event()
842 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %s to %s\n",  in drm_helper_hpd_irq_event()
843 			      connector->base.id,  in drm_helper_hpd_irq_event()
844 			      connector->name,  in drm_helper_hpd_irq_event()
846 			      drm_get_connector_status_name(connector->status));  in drm_helper_hpd_irq_event()
848 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] New epoch counter %llu\n",  in drm_helper_hpd_irq_event()
849 			      connector->base.id,  in drm_helper_hpd_irq_event()
850 			      connector->name,  in drm_helper_hpd_irq_event()
851 			      connector->epoch_counter);  in drm_helper_hpd_irq_event()
857 		if (old_epoch_counter != connector->epoch_counter)  in drm_helper_hpd_irq_event()