1 // SPDX-License-Identifier: GPL-2.0-or-later
9 #include <linux/clk-provider.h>
11 #include <linux/extcon-provider.h>
28 #include <linux/usb/of.h>
29 #include <linux/usb/otg.h>
49  * enum usb_chg_state - Different states involved in USB charger detection.
50  * @USB_CHG_STATE_UNDEFINED:	USB charger is not connected or detection
55  *				between SDP and DCP/CDP).
58  * @USB_CHG_STATE_DETECTED:	USB charger type is determined.
88  * struct rockchip_chg_det_reg - usb charger detect registers
114  * struct rockchip_usb2phy_port_cfg - usb-phy port configuration.
142  * struct rockchip_usb2phy_cfg - usb-phy configuration.
143  * @reg: the address offset of grf for usb-phy config.
146  * @port_cfgs: usb-phy port configurations.
158  * struct rockchip_usb2phy_port - usb-phy port data.
165  * @otg_mux_irq: IRQ number which multiplex otg-id/otg-bvalid/linestate
166  *		 irqs to one irq in otg-port.
195  * struct rockchip_usb2phy - usb2.0 phy driver data.
198  * @usbgrf: USB General Register Files regmap.
202  * @chg_state: states involved in USB charger detection.
203  * @chg_type: USB charger types.
227 	return rphy->usbgrf == NULL ? rphy->grf : rphy->usbgrf;  in get_reg_base()
235 	tmp = en ? reg->enable : reg->disable;  in property_enable()
236 	mask = GENMASK(reg->bitend, reg->bitstart);  in property_enable()
237 	val = (tmp << reg->bitstart) | (mask << BIT_WRITEABLE_SHIFT);  in property_enable()
239 	return regmap_write(base, reg->offset, val);  in property_enable()
247 	unsigned int mask = GENMASK(reg->bitend, reg->bitstart);  in property_enabled()
249 	ret = regmap_read(base, reg->offset, &orig);  in property_enabled()
253 	tmp = (orig & mask) >> reg->bitstart;  in property_enabled()
254 	return tmp == reg->enable;  in property_enabled()
265 	if (!property_enabled(base, &rphy->phy_cfg->clkout_ctl)) {  in rockchip_usb2phy_clk480m_prepare()
266 		ret = property_enable(base, &rphy->phy_cfg->clkout_ctl, true);  in rockchip_usb2phy_clk480m_prepare()
284 	property_enable(base, &rphy->phy_cfg->clkout_ctl, false);  in rockchip_usb2phy_clk480m_unprepare()
293 	return property_enabled(base, &rphy->phy_cfg->clkout_ctl);  in rockchip_usb2phy_clk480m_prepared()
314 	of_clk_del_provider(rphy->dev->of_node);  in rockchip_usb2phy_clk480m_unregister()
315 	clk_unregister(rphy->clk480m);  in rockchip_usb2phy_clk480m_unregister()
321 	struct device_node *node = rphy->dev->of_node;  in rockchip_usb2phy_clk480m_register()
331 	of_property_read_string(node, "clock-output-names", &init.name);  in rockchip_usb2phy_clk480m_register()
333 	if (rphy->clk) {  in rockchip_usb2phy_clk480m_register()
334 		clk_name = __clk_get_name(rphy->clk);  in rockchip_usb2phy_clk480m_register()
342 	rphy->clk480m_hw.init = &init;  in rockchip_usb2phy_clk480m_register()
345 	rphy->clk480m = clk_register(rphy->dev, &rphy->clk480m_hw);  in rockchip_usb2phy_clk480m_register()
346 	if (IS_ERR(rphy->clk480m)) {  in rockchip_usb2phy_clk480m_register()
347 		ret = PTR_ERR(rphy->clk480m);  in rockchip_usb2phy_clk480m_register()
351 	ret = of_clk_add_provider(node, of_clk_src_simple_get, rphy->clk480m);  in rockchip_usb2phy_clk480m_register()
355 	ret = devm_add_action(rphy->dev, rockchip_usb2phy_clk480m_unregister,  in rockchip_usb2phy_clk480m_register()
365 	clk_unregister(rphy->clk480m);  in rockchip_usb2phy_clk480m_register()
373 	struct device_node *node = rphy->dev->of_node;  in rockchip_usb2phy_extcon_register()
377 		edev = extcon_get_edev_by_phandle(rphy->dev, 0);  in rockchip_usb2phy_extcon_register()
379 			if (PTR_ERR(edev) != -EPROBE_DEFER)  in rockchip_usb2phy_extcon_register()
380 				dev_err(rphy->dev, "Invalid or missing extcon\n");  in rockchip_usb2phy_extcon_register()
385 		edev = devm_extcon_dev_allocate(rphy->dev,  in rockchip_usb2phy_extcon_register()
389 			return -ENOMEM;  in rockchip_usb2phy_extcon_register()
391 		ret = devm_extcon_dev_register(rphy->dev, edev);  in rockchip_usb2phy_extcon_register()
393 			dev_err(rphy->dev, "failed to register extcon device\n");  in rockchip_usb2phy_extcon_register()
398 	rphy->edev = edev;  in rockchip_usb2phy_extcon_register()
406 	struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent);  in rockchip_usb2phy_init()
409 	mutex_lock(&rport->mutex);  in rockchip_usb2phy_init()
411 	if (rport->port_id == USB2PHY_PORT_OTG) {  in rockchip_usb2phy_init()
412 		if (rport->mode != USB_DR_MODE_HOST &&  in rockchip_usb2phy_init()
413 		    rport->mode != USB_DR_MODE_UNKNOWN) {  in rockchip_usb2phy_init()
415 			ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
416 					      &rport->port_cfg->bvalid_det_clr,  in rockchip_usb2phy_init()
421 			ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
422 					      &rport->port_cfg->bvalid_det_en,  in rockchip_usb2phy_init()
427 			schedule_delayed_work(&rport->otg_sm_work,  in rockchip_usb2phy_init()
431 			dev_dbg(&rport->phy->dev, "mode %d\n", rport->mode);  in rockchip_usb2phy_init()
433 	} else if (rport->port_id == USB2PHY_PORT_HOST) {  in rockchip_usb2phy_init()
435 		ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
436 				      &rport->port_cfg->ls_det_clr, true);  in rockchip_usb2phy_init()
440 		ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
441 				      &rport->port_cfg->ls_det_en, true);  in rockchip_usb2phy_init()
445 		schedule_delayed_work(&rport->sm_work, SCHEDULE_DELAY);  in rockchip_usb2phy_init()
449 	mutex_unlock(&rport->mutex);  in rockchip_usb2phy_init()
456 	struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent);  in rockchip_usb2phy_power_on()
460 	dev_dbg(&rport->phy->dev, "port power on\n");  in rockchip_usb2phy_power_on()
462 	if (!rport->suspended)  in rockchip_usb2phy_power_on()
465 	ret = clk_prepare_enable(rphy->clk480m);  in rockchip_usb2phy_power_on()
469 	ret = property_enable(base, &rport->port_cfg->phy_sus, false);  in rockchip_usb2phy_power_on()
476 	rport->suspended = false;  in rockchip_usb2phy_power_on()
483 	struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent);  in rockchip_usb2phy_power_off()
487 	dev_dbg(&rport->phy->dev, "port power off\n");  in rockchip_usb2phy_power_off()
489 	if (rport->suspended)  in rockchip_usb2phy_power_off()
492 	ret = property_enable(base, &rport->port_cfg->phy_sus, true);  in rockchip_usb2phy_power_off()
496 	rport->suspended = true;  in rockchip_usb2phy_power_off()
497 	clk_disable_unprepare(rphy->clk480m);  in rockchip_usb2phy_power_off()
506 	if (rport->port_id == USB2PHY_PORT_OTG &&  in rockchip_usb2phy_exit()
507 	    rport->mode != USB_DR_MODE_HOST &&  in rockchip_usb2phy_exit()
508 	    rport->mode != USB_DR_MODE_UNKNOWN) {  in rockchip_usb2phy_exit()
509 		cancel_delayed_work_sync(&rport->otg_sm_work);  in rockchip_usb2phy_exit()
510 		cancel_delayed_work_sync(&rport->chg_work);  in rockchip_usb2phy_exit()
511 	} else if (rport->port_id == USB2PHY_PORT_HOST)  in rockchip_usb2phy_exit()
512 		cancel_delayed_work_sync(&rport->sm_work);  in rockchip_usb2phy_exit()
530 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_otg_sm_work()
535 	vbus_attach = property_enabled(rphy->grf,  in rockchip_usb2phy_otg_sm_work()
536 				       &rport->port_cfg->utmi_bvalid);  in rockchip_usb2phy_otg_sm_work()
541 	dev_dbg(&rport->phy->dev, "%s otg sm work\n",  in rockchip_usb2phy_otg_sm_work()
542 		usb_otg_state_string(rport->state));  in rockchip_usb2phy_otg_sm_work()
544 	switch (rport->state) {  in rockchip_usb2phy_otg_sm_work()
546 		rport->state = OTG_STATE_B_IDLE;  in rockchip_usb2phy_otg_sm_work()
548 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_otg_sm_work()
551 		if (extcon_get_state(rphy->edev, EXTCON_USB_HOST) > 0) {  in rockchip_usb2phy_otg_sm_work()
552 			dev_dbg(&rport->phy->dev, "usb otg host connect\n");  in rockchip_usb2phy_otg_sm_work()
553 			rport->state = OTG_STATE_A_HOST;  in rockchip_usb2phy_otg_sm_work()
554 			rockchip_usb2phy_power_on(rport->phy);  in rockchip_usb2phy_otg_sm_work()
557 			dev_dbg(&rport->phy->dev, "vbus_attach\n");  in rockchip_usb2phy_otg_sm_work()
558 			switch (rphy->chg_state) {  in rockchip_usb2phy_otg_sm_work()
560 				schedule_delayed_work(&rport->chg_work, 0);  in rockchip_usb2phy_otg_sm_work()
563 				switch (rphy->chg_type) {  in rockchip_usb2phy_otg_sm_work()
565 					dev_dbg(&rport->phy->dev, "sdp cable is connected\n");  in rockchip_usb2phy_otg_sm_work()
566 					rockchip_usb2phy_power_on(rport->phy);  in rockchip_usb2phy_otg_sm_work()
567 					rport->state = OTG_STATE_B_PERIPHERAL;  in rockchip_usb2phy_otg_sm_work()
573 					dev_dbg(&rport->phy->dev, "dcp cable is connected\n");  in rockchip_usb2phy_otg_sm_work()
574 					rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_otg_sm_work()
580 					dev_dbg(&rport->phy->dev, "cdp cable is connected\n");  in rockchip_usb2phy_otg_sm_work()
581 					rockchip_usb2phy_power_on(rport->phy);  in rockchip_usb2phy_otg_sm_work()
582 					rport->state = OTG_STATE_B_PERIPHERAL;  in rockchip_usb2phy_otg_sm_work()
596 			rphy->chg_state = USB_CHG_STATE_UNDEFINED;  in rockchip_usb2phy_otg_sm_work()
597 			rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;  in rockchip_usb2phy_otg_sm_work()
600 		if (rport->vbus_attached != vbus_attach) {  in rockchip_usb2phy_otg_sm_work()
601 			rport->vbus_attached = vbus_attach;  in rockchip_usb2phy_otg_sm_work()
603 			if (notify_charger && rphy->edev) {  in rockchip_usb2phy_otg_sm_work()
604 				extcon_set_state_sync(rphy->edev,  in rockchip_usb2phy_otg_sm_work()
607 					extcon_set_state_sync(rphy->edev,  in rockchip_usb2phy_otg_sm_work()
615 			dev_dbg(&rport->phy->dev, "usb disconnect\n");  in rockchip_usb2phy_otg_sm_work()
616 			rphy->chg_state = USB_CHG_STATE_UNDEFINED;  in rockchip_usb2phy_otg_sm_work()
617 			rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;  in rockchip_usb2phy_otg_sm_work()
618 			rport->state = OTG_STATE_B_IDLE;  in rockchip_usb2phy_otg_sm_work()
620 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_otg_sm_work()
625 		if (extcon_get_state(rphy->edev, EXTCON_USB_HOST) == 0) {  in rockchip_usb2phy_otg_sm_work()
626 			dev_dbg(&rport->phy->dev, "usb otg host disconnect\n");  in rockchip_usb2phy_otg_sm_work()
627 			rport->state = OTG_STATE_B_IDLE;  in rockchip_usb2phy_otg_sm_work()
628 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_otg_sm_work()
636 		schedule_delayed_work(&rport->otg_sm_work, delay);  in rockchip_usb2phy_otg_sm_work()
658 	property_enable(base, &rphy->phy_cfg->chg_det.rdm_pdwn_en, en);  in rockchip_chg_enable_dcd()
659 	property_enable(base, &rphy->phy_cfg->chg_det.idp_src_en, en);  in rockchip_chg_enable_dcd()
667 	property_enable(base, &rphy->phy_cfg->chg_det.vdp_src_en, en);  in rockchip_chg_enable_primary_det()
668 	property_enable(base, &rphy->phy_cfg->chg_det.idm_sink_en, en);  in rockchip_chg_enable_primary_det()
676 	property_enable(base, &rphy->phy_cfg->chg_det.vdm_src_en, en);  in rockchip_chg_enable_secondary_det()
677 	property_enable(base, &rphy->phy_cfg->chg_det.idp_sink_en, en);  in rockchip_chg_enable_secondary_det()
688 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_chg_detect_work()
693 	dev_dbg(&rport->phy->dev, "chg detection work state = %d\n",  in rockchip_chg_detect_work()
694 		rphy->chg_state);  in rockchip_chg_detect_work()
695 	switch (rphy->chg_state) {  in rockchip_chg_detect_work()
697 		if (!rport->suspended)  in rockchip_chg_detect_work()
698 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_chg_detect_work()
699 		/* put the controller in non-driving mode */  in rockchip_chg_detect_work()
700 		property_enable(base, &rphy->phy_cfg->chg_det.opmode, false);  in rockchip_chg_detect_work()
703 		rphy->chg_state = USB_CHG_STATE_WAIT_FOR_DCD;  in rockchip_chg_detect_work()
704 		rphy->dcd_retries = 0;  in rockchip_chg_detect_work()
709 		is_dcd = property_enabled(rphy->grf,  in rockchip_chg_detect_work()
710 					  &rphy->phy_cfg->chg_det.dp_det);  in rockchip_chg_detect_work()
711 		tmout = ++rphy->dcd_retries == CHG_DCD_MAX_RETRIES;  in rockchip_chg_detect_work()
720 			rphy->chg_state = USB_CHG_STATE_DCD_DONE;  in rockchip_chg_detect_work()
727 		vout = property_enabled(rphy->grf,  in rockchip_chg_detect_work()
728 					&rphy->phy_cfg->chg_det.cp_det);  in rockchip_chg_detect_work()
734 			rphy->chg_state = USB_CHG_STATE_PRIMARY_DONE;  in rockchip_chg_detect_work()
736 			if (rphy->dcd_retries == CHG_DCD_MAX_RETRIES) {  in rockchip_chg_detect_work()
738 				rphy->chg_type = POWER_SUPPLY_TYPE_USB_DCP;  in rockchip_chg_detect_work()
739 				rphy->chg_state = USB_CHG_STATE_DETECTED;  in rockchip_chg_detect_work()
742 				rphy->chg_type = POWER_SUPPLY_TYPE_USB;  in rockchip_chg_detect_work()
743 				rphy->chg_state = USB_CHG_STATE_DETECTED;  in rockchip_chg_detect_work()
749 		vout = property_enabled(rphy->grf,  in rockchip_chg_detect_work()
750 					&rphy->phy_cfg->chg_det.dcp_det);  in rockchip_chg_detect_work()
754 			rphy->chg_type = POWER_SUPPLY_TYPE_USB_DCP;  in rockchip_chg_detect_work()
756 			rphy->chg_type = POWER_SUPPLY_TYPE_USB_CDP;  in rockchip_chg_detect_work()
759 		rphy->chg_state = USB_CHG_STATE_DETECTED;  in rockchip_chg_detect_work()
764 		property_enable(base, &rphy->phy_cfg->chg_det.opmode, true);  in rockchip_chg_detect_work()
765 		rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work);  in rockchip_chg_detect_work()
766 		dev_dbg(&rport->phy->dev, "charger = %s\n",  in rockchip_chg_detect_work()
767 			 chg_to_string(rphy->chg_type));  in rockchip_chg_detect_work()
773 	schedule_delayed_work(&rport->chg_work, delay);  in rockchip_chg_detect_work()
777  * The function manage host-phy port state and suspend/resume phy port
793 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_sm_work()
794 	unsigned int sh = rport->port_cfg->utmi_hstdet.bitend -  in rockchip_usb2phy_sm_work()
795 			  rport->port_cfg->utmi_hstdet.bitstart + 1;  in rockchip_usb2phy_sm_work()
800 	mutex_lock(&rport->mutex);  in rockchip_usb2phy_sm_work()
802 	ret = regmap_read(rphy->grf, rport->port_cfg->utmi_ls.offset, &ul);  in rockchip_usb2phy_sm_work()
806 	ret = regmap_read(rphy->grf, rport->port_cfg->utmi_hstdet.offset, &uhd);  in rockchip_usb2phy_sm_work()
810 	uhd_mask = GENMASK(rport->port_cfg->utmi_hstdet.bitend,  in rockchip_usb2phy_sm_work()
811 			   rport->port_cfg->utmi_hstdet.bitstart);  in rockchip_usb2phy_sm_work()
812 	ul_mask = GENMASK(rport->port_cfg->utmi_ls.bitend,  in rockchip_usb2phy_sm_work()
813 			  rport->port_cfg->utmi_ls.bitstart);  in rockchip_usb2phy_sm_work()
816 	state = ((uhd & uhd_mask) >> rport->port_cfg->utmi_hstdet.bitstart) |  in rockchip_usb2phy_sm_work()
817 		(((ul & ul_mask) >> rport->port_cfg->utmi_ls.bitstart) << sh);  in rockchip_usb2phy_sm_work()
821 		dev_dbg(&rport->phy->dev, "HS online\n");  in rockchip_usb2phy_sm_work()
829 		 * Plus, there are two cases, one is D- Line pull-up, and D+  in rockchip_usb2phy_sm_work()
830 		 * line pull-down, the state is 4; another is D+ line pull-up,  in rockchip_usb2phy_sm_work()
831 		 * and D- line pull-down, the state is 2.  in rockchip_usb2phy_sm_work()
833 		if (!rport->suspended) {  in rockchip_usb2phy_sm_work()
834 			/* D- line pull-up, D+ line pull-down */  in rockchip_usb2phy_sm_work()
835 			dev_dbg(&rport->phy->dev, "FS/LS online\n");  in rockchip_usb2phy_sm_work()
840 		if (rport->suspended) {  in rockchip_usb2phy_sm_work()
841 			dev_dbg(&rport->phy->dev, "Connected\n");  in rockchip_usb2phy_sm_work()
842 			rockchip_usb2phy_power_on(rport->phy);  in rockchip_usb2phy_sm_work()
843 			rport->suspended = false;  in rockchip_usb2phy_sm_work()
845 			/* D+ line pull-up, D- line pull-down */  in rockchip_usb2phy_sm_work()
846 			dev_dbg(&rport->phy->dev, "FS/LS online\n");  in rockchip_usb2phy_sm_work()
850 		if (!rport->suspended) {  in rockchip_usb2phy_sm_work()
851 			dev_dbg(&rport->phy->dev, "Disconnected\n");  in rockchip_usb2phy_sm_work()
852 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_sm_work()
853 			rport->suspended = true;  in rockchip_usb2phy_sm_work()
858 		 * plug-in irq.  in rockchip_usb2phy_sm_work()
860 		property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true);  in rockchip_usb2phy_sm_work()
861 		property_enable(rphy->grf, &rport->port_cfg->ls_det_en, true);  in rockchip_usb2phy_sm_work()
867 		mutex_unlock(&rport->mutex);  in rockchip_usb2phy_sm_work()
870 		dev_dbg(&rport->phy->dev, "unknown phy state\n");  in rockchip_usb2phy_sm_work()
875 	mutex_unlock(&rport->mutex);  in rockchip_usb2phy_sm_work()
876 	schedule_delayed_work(&rport->sm_work, SCHEDULE_DELAY);  in rockchip_usb2phy_sm_work()
882 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_linestate_irq()
884 	if (!property_enabled(rphy->grf, &rport->port_cfg->ls_det_st))  in rockchip_usb2phy_linestate_irq()
887 	mutex_lock(&rport->mutex);  in rockchip_usb2phy_linestate_irq()
890 	property_enable(rphy->grf, &rport->port_cfg->ls_det_en, false);  in rockchip_usb2phy_linestate_irq()
891 	property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true);  in rockchip_usb2phy_linestate_irq()
893 	mutex_unlock(&rport->mutex);  in rockchip_usb2phy_linestate_irq()
900 	if (rport->suspended && rport->port_id == USB2PHY_PORT_HOST)  in rockchip_usb2phy_linestate_irq()
901 		rockchip_usb2phy_sm_work(&rport->sm_work.work);  in rockchip_usb2phy_linestate_irq()
909 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_bvalid_irq()
911 	if (!property_enabled(rphy->grf, &rport->port_cfg->bvalid_det_st))  in rockchip_usb2phy_bvalid_irq()
914 	mutex_lock(&rport->mutex);  in rockchip_usb2phy_bvalid_irq()
917 	property_enable(rphy->grf, &rport->port_cfg->bvalid_det_clr, true);  in rockchip_usb2phy_bvalid_irq()
919 	mutex_unlock(&rport->mutex);  in rockchip_usb2phy_bvalid_irq()
921 	rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work);  in rockchip_usb2phy_bvalid_irq()
929 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_otg_mux_irq()
931 	if (property_enabled(rphy->grf, &rport->port_cfg->bvalid_det_st))  in rockchip_usb2phy_otg_mux_irq()
943 	rport->port_id = USB2PHY_PORT_HOST;  in rockchip_usb2phy_host_port_init()
944 	rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_HOST];  in rockchip_usb2phy_host_port_init()
945 	rport->suspended = true;  in rockchip_usb2phy_host_port_init()
947 	mutex_init(&rport->mutex);  in rockchip_usb2phy_host_port_init()
948 	INIT_DELAYED_WORK(&rport->sm_work, rockchip_usb2phy_sm_work);  in rockchip_usb2phy_host_port_init()
950 	rport->ls_irq = of_irq_get_byname(child_np, "linestate");  in rockchip_usb2phy_host_port_init()
951 	if (rport->ls_irq < 0) {  in rockchip_usb2phy_host_port_init()
952 		dev_err(rphy->dev, "no linestate irq provided\n");  in rockchip_usb2phy_host_port_init()
953 		return rport->ls_irq;  in rockchip_usb2phy_host_port_init()
956 	ret = devm_request_threaded_irq(rphy->dev, rport->ls_irq, NULL,  in rockchip_usb2phy_host_port_init()
961 		dev_err(rphy->dev, "failed to request linestate irq handle\n");  in rockchip_usb2phy_host_port_init()
974 	schedule_delayed_work(&rport->otg_sm_work, OTG_SCHEDULE_DELAY);  in rockchip_otg_event()
985 	rport->port_id = USB2PHY_PORT_OTG;  in rockchip_usb2phy_otg_port_init()
986 	rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_OTG];  in rockchip_usb2phy_otg_port_init()
987 	rport->state = OTG_STATE_UNDEFINED;  in rockchip_usb2phy_otg_port_init()
991 	 * put phy in suspend mode, it aims to enable usb  in rockchip_usb2phy_otg_port_init()
992 	 * phy and clock in power_on() called by usb controller  in rockchip_usb2phy_otg_port_init()
995 	rport->suspended = true;  in rockchip_usb2phy_otg_port_init()
996 	rport->vbus_attached = false;  in rockchip_usb2phy_otg_port_init()
998 	mutex_init(&rport->mutex);  in rockchip_usb2phy_otg_port_init()
1000 	rport->mode = of_usb_get_dr_mode_by_phy(child_np, -1);  in rockchip_usb2phy_otg_port_init()
1001 	if (rport->mode == USB_DR_MODE_HOST ||  in rockchip_usb2phy_otg_port_init()
1002 	    rport->mode == USB_DR_MODE_UNKNOWN) {  in rockchip_usb2phy_otg_port_init()
1007 	INIT_DELAYED_WORK(&rport->chg_work, rockchip_chg_detect_work);  in rockchip_usb2phy_otg_port_init()
1008 	INIT_DELAYED_WORK(&rport->otg_sm_work, rockchip_usb2phy_otg_sm_work);  in rockchip_usb2phy_otg_port_init()
1011 	 * Some SoCs use one interrupt with otg-id/otg-bvalid/linestate  in rockchip_usb2phy_otg_port_init()
1012 	 * interrupts muxed together, so probe the otg-mux interrupt first,  in rockchip_usb2phy_otg_port_init()
1015 	rport->otg_mux_irq = of_irq_get_byname(child_np, "otg-mux");  in rockchip_usb2phy_otg_port_init()
1016 	if (rport->otg_mux_irq > 0) {  in rockchip_usb2phy_otg_port_init()
1017 		ret = devm_request_threaded_irq(rphy->dev, rport->otg_mux_irq,  in rockchip_usb2phy_otg_port_init()
1024 			dev_err(rphy->dev,  in rockchip_usb2phy_otg_port_init()
1025 				"failed to request otg-mux irq handle\n");  in rockchip_usb2phy_otg_port_init()
1029 		rport->bvalid_irq = of_irq_get_byname(child_np, "otg-bvalid");  in rockchip_usb2phy_otg_port_init()
1030 		if (rport->bvalid_irq < 0) {  in rockchip_usb2phy_otg_port_init()
1031 			dev_err(rphy->dev, "no vbus valid irq provided\n");  in rockchip_usb2phy_otg_port_init()
1032 			ret = rport->bvalid_irq;  in rockchip_usb2phy_otg_port_init()
1036 		ret = devm_request_threaded_irq(rphy->dev, rport->bvalid_irq,  in rockchip_usb2phy_otg_port_init()
1043 			dev_err(rphy->dev,  in rockchip_usb2phy_otg_port_init()
1044 				"failed to request otg-bvalid irq handle\n");  in rockchip_usb2phy_otg_port_init()
1049 	if (!IS_ERR(rphy->edev)) {  in rockchip_usb2phy_otg_port_init()
1050 		rport->event_nb.notifier_call = rockchip_otg_event;  in rockchip_usb2phy_otg_port_init()
1052 		ret = devm_extcon_register_notifier(rphy->dev, rphy->edev,  in rockchip_usb2phy_otg_port_init()
1053 					EXTCON_USB_HOST, &rport->event_nb);  in rockchip_usb2phy_otg_port_init()
1055 			dev_err(rphy->dev, "register USB HOST notifier failed\n");  in rockchip_usb2phy_otg_port_init()
1064 	struct device *dev = &pdev->dev;  in rockchip_usb2phy_probe()
1065 	struct device_node *np = dev->of_node;  in rockchip_usb2phy_probe()
1076 		return -ENOMEM;  in rockchip_usb2phy_probe()
1078 	match = of_match_device(dev->driver->of_match_table, dev);  in rockchip_usb2phy_probe()
1079 	if (!match || !match->data) {  in rockchip_usb2phy_probe()
1081 		return -EINVAL;  in rockchip_usb2phy_probe()
1084 	if (!dev->parent || !dev->parent->of_node)  in rockchip_usb2phy_probe()
1085 		return -EINVAL;  in rockchip_usb2phy_probe()
1087 	rphy->grf = syscon_node_to_regmap(dev->parent->of_node);  in rockchip_usb2phy_probe()
1088 	if (IS_ERR(rphy->grf))  in rockchip_usb2phy_probe()
1089 		return PTR_ERR(rphy->grf);  in rockchip_usb2phy_probe()
1091 	if (of_device_is_compatible(np, "rockchip,rv1108-usb2phy")) {  in rockchip_usb2phy_probe()
1092 		rphy->usbgrf =  in rockchip_usb2phy_probe()
1093 			syscon_regmap_lookup_by_phandle(dev->of_node,  in rockchip_usb2phy_probe()
1095 		if (IS_ERR(rphy->usbgrf))  in rockchip_usb2phy_probe()
1096 			return PTR_ERR(rphy->usbgrf);  in rockchip_usb2phy_probe()
1098 		rphy->usbgrf = NULL;  in rockchip_usb2phy_probe()
1104 		return -EINVAL;  in rockchip_usb2phy_probe()
1107 	rphy->dev = dev;  in rockchip_usb2phy_probe()
1108 	phy_cfgs = match->data;  in rockchip_usb2phy_probe()
1109 	rphy->chg_state = USB_CHG_STATE_UNDEFINED;  in rockchip_usb2phy_probe()
1110 	rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;  in rockchip_usb2phy_probe()
1121 			rphy->phy_cfg = &phy_cfgs[index];  in rockchip_usb2phy_probe()
1128 	if (!rphy->phy_cfg) {  in rockchip_usb2phy_probe()
1129 		dev_err(dev, "no phy-config can be matched with %pOFn node\n",  in rockchip_usb2phy_probe()
1131 		return -EINVAL;  in rockchip_usb2phy_probe()
1134 	rphy->clk = of_clk_get_by_name(np, "phyclk");  in rockchip_usb2phy_probe()
1135 	if (!IS_ERR(rphy->clk)) {  in rockchip_usb2phy_probe()
1136 		clk_prepare_enable(rphy->clk);  in rockchip_usb2phy_probe()
1138 		dev_info(&pdev->dev, "no phyclk specified\n");  in rockchip_usb2phy_probe()
1139 		rphy->clk = NULL;  in rockchip_usb2phy_probe()
1150 		struct rockchip_usb2phy_port *rport = &rphy->ports[index];  in rockchip_usb2phy_probe()
1153 		/* This driver aims to support both otg-port and host-port */  in rockchip_usb2phy_probe()
1154 		if (!of_node_name_eq(child_np, "host-port") &&  in rockchip_usb2phy_probe()
1155 		    !of_node_name_eq(child_np, "otg-port"))  in rockchip_usb2phy_probe()
1165 		rport->phy = phy;  in rockchip_usb2phy_probe()
1166 		phy_set_drvdata(rport->phy, rport);  in rockchip_usb2phy_probe()
1169 		if (of_node_name_eq(child_np, "host-port")) {  in rockchip_usb2phy_probe()
1183 		if (++index >= rphy->phy_cfg->num_ports)  in rockchip_usb2phy_probe()
1193 	if (rphy->clk) {  in rockchip_usb2phy_probe()
1194 		clk_disable_unprepare(rphy->clk);  in rockchip_usb2phy_probe()
1195 		clk_put(rphy->clk);  in rockchip_usb2phy_probe()
1426 	{ .compatible = "rockchip,px30-usb2phy", .data = &rk3328_phy_cfgs },
1427 	{ .compatible = "rockchip,rk3228-usb2phy", .data = &rk3228_phy_cfgs },
1428 	{ .compatible = "rockchip,rk3328-usb2phy", .data = &rk3328_phy_cfgs },
1429 	{ .compatible = "rockchip,rk3366-usb2phy", .data = &rk3366_phy_cfgs },
1430 	{ .compatible = "rockchip,rk3399-usb2phy", .data = &rk3399_phy_cfgs },
1431 	{ .compatible = "rockchip,rv1108-usb2phy", .data = &rv1108_phy_cfgs },
1439 		.name	= "rockchip-usb2phy",
1445 MODULE_AUTHOR("Frank Wang <frank.wang@rock-chips.com>");