383 	struct panel_edp *p = to_panel_edp(panel);  in panel_edp_disable()  local
385 	if (!p->enabled)  in panel_edp_disable()
388 	if (p->desc->delay.disable)  in panel_edp_disable()
389 		msleep(p->desc->delay.disable);  in panel_edp_disable()
391 	p->enabled = false;  in panel_edp_disable()
398 	struct panel_edp *p = dev_get_drvdata(dev);  in panel_edp_suspend()  local
400 	drm_dp_dpcd_set_powered(p->aux, false);  in panel_edp_suspend()
401 	gpiod_set_value_cansleep(p->enable_gpio, 0);  in panel_edp_suspend()
402 	regulator_disable(p->supply);  in panel_edp_suspend()
403 	p->unprepared_time = ktime_get_boottime();  in panel_edp_suspend()
410 	struct panel_edp *p = to_panel_edp(panel);  in panel_edp_unprepare()  local
414 	if (!p->prepared)  in panel_edp_unprepare()
420 	p->prepared = false;  in panel_edp_unprepare()
425 static int panel_edp_get_hpd_gpio(struct device *dev, struct panel_edp *p)  in panel_edp_get_hpd_gpio()  argument
427 	p->hpd_gpio = devm_gpiod_get_optional(dev, "hpd", GPIOD_IN);  in panel_edp_get_hpd_gpio()
428 	if (IS_ERR(p->hpd_gpio))  in panel_edp_get_hpd_gpio()
429 		return dev_err_probe(dev, PTR_ERR(p->hpd_gpio),  in panel_edp_get_hpd_gpio()
435 static bool panel_edp_can_read_hpd(struct panel_edp *p)  in panel_edp_can_read_hpd()  argument
437 	return !p->no_hpd && (p->hpd_gpio || (p->aux && p->aux->wait_hpd_asserted));  in panel_edp_can_read_hpd()
440 static int panel_edp_prepare_once(struct panel_edp *p)  in panel_edp_prepare_once()  argument
442 	struct device *dev = p->base.dev;  in panel_edp_prepare_once()
448 	panel_edp_wait(p->unprepared_time, p->desc->delay.unprepare);  in panel_edp_prepare_once()
450 	err = regulator_enable(p->supply);  in panel_edp_prepare_once()
456 	gpiod_set_value_cansleep(p->enable_gpio, 1);  in panel_edp_prepare_once()
457 	drm_dp_dpcd_set_powered(p->aux, true);  in panel_edp_prepare_once()
459 	delay = p->desc->delay.hpd_reliable;  in panel_edp_prepare_once()
460 	if (p->no_hpd)  in panel_edp_prepare_once()
461 		delay = max(delay, p->desc->delay.hpd_absent);  in panel_edp_prepare_once()
465 	if (panel_edp_can_read_hpd(p)) {  in panel_edp_prepare_once()
466 		if (p->desc->delay.hpd_absent)  in panel_edp_prepare_once()
467 			hpd_wait_us = p->desc->delay.hpd_absent * 1000UL;  in panel_edp_prepare_once()
471 		if (p->hpd_gpio) {  in panel_edp_prepare_once()
473 						 p->hpd_gpio, hpd_asserted,  in panel_edp_prepare_once()
478 			err = p->aux->wait_hpd_asserted(p->aux, hpd_wait_us);  in panel_edp_prepare_once()
489 	p->prepared_time = ktime_get_boottime();  in panel_edp_prepare_once()
494 	drm_dp_dpcd_set_powered(p->aux, false);  in panel_edp_prepare_once()
495 	gpiod_set_value_cansleep(p->enable_gpio, 0);  in panel_edp_prepare_once()
496 	regulator_disable(p->supply);  in panel_edp_prepare_once()
497 	p->unprepared_time = ktime_get_boottime();  in panel_edp_prepare_once()
510 	struct panel_edp *p = dev_get_drvdata(dev);  in panel_edp_resume()  local
515 		ret = panel_edp_prepare_once(p);  in panel_edp_resume()
530 	struct panel_edp *p = to_panel_edp(panel);  in panel_edp_prepare()  local
534 	if (p->prepared)  in panel_edp_prepare()
543 	p->prepared = true;  in panel_edp_prepare()
550 	struct panel_edp *p = to_panel_edp(panel);  in panel_edp_enable()  local
553 	if (p->enabled)  in panel_edp_enable()
556 	delay = p->desc->delay.enable;  in panel_edp_enable()
575 	if (p->desc->delay.prepare_to_enable &&  in panel_edp_enable()
576 	    !panel_edp_can_read_hpd(p) && !p->no_hpd)  in panel_edp_enable()
577 		delay = max(delay, p->desc->delay.prepare_to_enable);  in panel_edp_enable()
582 	panel_edp_wait(p->prepared_time, p->desc->delay.prepare_to_enable);  in panel_edp_enable()
584 	p->enabled = true;  in panel_edp_enable()
592 	struct panel_edp *p = to_panel_edp(panel);  in panel_edp_get_modes()  local
594 	bool has_override_edid_mode = p->detected_panel &&  in panel_edp_get_modes()
595 				      p->detected_panel != ERR_PTR(-EINVAL) &&  in panel_edp_get_modes()
596 				      p->detected_panel->override_edid_mode;  in panel_edp_get_modes()
599 	if (p->ddc) {  in panel_edp_get_modes()
602 		if (!p->edid)  in panel_edp_get_modes()
603 			p->edid = drm_get_edid(connector, p->ddc);  in panel_edp_get_modes()
604 		if (p->edid) {  in panel_edp_get_modes()
610 				num += panel_edp_override_edid_mode(p, connector,  in panel_edp_get_modes()
611 						p->detected_panel->override_edid_mode);  in panel_edp_get_modes()
613 				num += drm_add_edid_modes(connector, p->edid);  in panel_edp_get_modes()
626 	if (p->desc->num_timings || p->desc->num_modes)  in panel_edp_get_modes()
627 		num += panel_edp_get_non_edid_modes(p, connector);  in panel_edp_get_modes()
629 		dev_warn(p->base.dev, "No display modes\n");  in panel_edp_get_modes()
635 	drm_connector_set_panel_orientation(connector, p->orientation);  in panel_edp_get_modes()
644 	struct panel_edp *p = to_panel_edp(panel);  in panel_edp_get_timings()  local
647 	if (p->desc->num_timings < num_timings)  in panel_edp_get_timings()
648 		num_timings = p->desc->num_timings;  in panel_edp_get_timings()
652 			timings[i] = p->desc->timings[i];  in panel_edp_get_timings()
654 	return p->desc->num_timings;  in panel_edp_get_timings()
659 	struct panel_edp *p = to_panel_edp(panel);  in panel_edp_get_orientation()  local
661 	return p->orientation;  in panel_edp_get_orientation()
667 	struct panel_edp *p = to_panel_edp(panel);  in detected_panel_show()  local
669 	if (IS_ERR(p->detected_panel))  in detected_panel_show()
671 	else if (!p->detected_panel)  in detected_panel_show()
674 		seq_printf(s, "%s\n", p->detected_panel->name);  in detected_panel_show()