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.
150  * struct rockchip_usb2phy_cfg - usb-phy configuration.
151  * @reg: the address offset of grf for usb-phy config.
154  * @port_cfgs: usb-phy port configurations.
166  * struct rockchip_usb2phy_port - usb-phy port data.
174  * @otg_mux_irq: IRQ number which multiplex otg-id/otg-bvalid/linestate
175  *		 irqs to one irq in otg-port.
205  * struct rockchip_usb2phy - usb2.0 phy driver data.
208  * @usbgrf: USB General Register Files regmap.
212  * @chg_state: states involved in USB charger detection.
213  * @chg_type: USB charger types.
239 	return rphy->usbgrf == NULL ? rphy->grf : rphy->usbgrf;  in get_reg_base()
247 	tmp = en ? reg->enable : reg->disable;  in property_enable()
248 	mask = GENMASK(reg->bitend, reg->bitstart);  in property_enable()
249 	val = (tmp << reg->bitstart) | (mask << BIT_WRITEABLE_SHIFT);  in property_enable()
251 	return regmap_write(base, reg->offset, val);  in property_enable()
259 	unsigned int mask = GENMASK(reg->bitend, reg->bitstart);  in property_enabled()
261 	ret = regmap_read(base, reg->offset, &orig);  in property_enabled()
265 	tmp = (orig & mask) >> reg->bitstart;  in property_enabled()
266 	return tmp != reg->disable;  in property_enabled()
277 	if (!property_enabled(base, &rphy->phy_cfg->clkout_ctl)) {  in rockchip_usb2phy_clk480m_prepare()
278 		ret = property_enable(base, &rphy->phy_cfg->clkout_ctl, true);  in rockchip_usb2phy_clk480m_prepare()
296 	property_enable(base, &rphy->phy_cfg->clkout_ctl, false);  in rockchip_usb2phy_clk480m_unprepare()
305 	return property_enabled(base, &rphy->phy_cfg->clkout_ctl);  in rockchip_usb2phy_clk480m_prepared()
326 	of_clk_del_provider(rphy->dev->of_node);  in rockchip_usb2phy_clk480m_unregister()
327 	clk_unregister(rphy->clk480m);  in rockchip_usb2phy_clk480m_unregister()
333 	struct device_node *node = rphy->dev->of_node;  in rockchip_usb2phy_clk480m_register()
343 	of_property_read_string(node, "clock-output-names", &init.name);  in rockchip_usb2phy_clk480m_register()
345 	if (rphy->clk) {  in rockchip_usb2phy_clk480m_register()
346 		clk_name = __clk_get_name(rphy->clk);  in rockchip_usb2phy_clk480m_register()
354 	rphy->clk480m_hw.init = &init;  in rockchip_usb2phy_clk480m_register()
357 	rphy->clk480m = clk_register(rphy->dev, &rphy->clk480m_hw);  in rockchip_usb2phy_clk480m_register()
358 	if (IS_ERR(rphy->clk480m)) {  in rockchip_usb2phy_clk480m_register()
359 		ret = PTR_ERR(rphy->clk480m);  in rockchip_usb2phy_clk480m_register()
363 	ret = of_clk_add_provider(node, of_clk_src_simple_get, rphy->clk480m);  in rockchip_usb2phy_clk480m_register()
367 	return devm_add_action_or_reset(rphy->dev, rockchip_usb2phy_clk480m_unregister, rphy);  in rockchip_usb2phy_clk480m_register()
370 	clk_unregister(rphy->clk480m);  in rockchip_usb2phy_clk480m_register()
378 	struct device_node *node = rphy->dev->of_node;  in rockchip_usb2phy_extcon_register()
382 		edev = extcon_get_edev_by_phandle(rphy->dev, 0);  in rockchip_usb2phy_extcon_register()
384 			if (PTR_ERR(edev) != -EPROBE_DEFER)  in rockchip_usb2phy_extcon_register()
385 				dev_err(rphy->dev, "Invalid or missing extcon\n");  in rockchip_usb2phy_extcon_register()
390 		edev = devm_extcon_dev_allocate(rphy->dev,  in rockchip_usb2phy_extcon_register()
394 			return -ENOMEM;  in rockchip_usb2phy_extcon_register()
396 		ret = devm_extcon_dev_register(rphy->dev, edev);  in rockchip_usb2phy_extcon_register()
398 			dev_err(rphy->dev, "failed to register extcon device\n");  in rockchip_usb2phy_extcon_register()
403 	rphy->edev = edev;  in rockchip_usb2phy_extcon_register()
411 	struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent);  in rockchip_usb2phy_init()
414 	mutex_lock(&rport->mutex);  in rockchip_usb2phy_init()
416 	if (rport->port_id == USB2PHY_PORT_OTG) {  in rockchip_usb2phy_init()
417 		if (rport->mode != USB_DR_MODE_HOST &&  in rockchip_usb2phy_init()
418 		    rport->mode != USB_DR_MODE_UNKNOWN) {  in rockchip_usb2phy_init()
420 			ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
421 					      &rport->port_cfg->bvalid_det_clr,  in rockchip_usb2phy_init()
426 			ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
427 					      &rport->port_cfg->bvalid_det_en,  in rockchip_usb2phy_init()
433 			ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
434 					      &rport->port_cfg->id_det_clr,  in rockchip_usb2phy_init()
439 			ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
440 					      &rport->port_cfg->id_det_en,  in rockchip_usb2phy_init()
445 			schedule_delayed_work(&rport->otg_sm_work,  in rockchip_usb2phy_init()
449 			dev_dbg(&rport->phy->dev, "mode %d\n", rport->mode);  in rockchip_usb2phy_init()
451 	} else if (rport->port_id == USB2PHY_PORT_HOST) {  in rockchip_usb2phy_init()
453 		ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
454 				      &rport->port_cfg->ls_det_clr, true);  in rockchip_usb2phy_init()
458 		ret = property_enable(rphy->grf,  in rockchip_usb2phy_init()
459 				      &rport->port_cfg->ls_det_en, true);  in rockchip_usb2phy_init()
463 		schedule_delayed_work(&rport->sm_work, SCHEDULE_DELAY);  in rockchip_usb2phy_init()
467 	mutex_unlock(&rport->mutex);  in rockchip_usb2phy_init()
474 	struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent);  in rockchip_usb2phy_power_on()
478 	dev_dbg(&rport->phy->dev, "port power on\n");  in rockchip_usb2phy_power_on()
480 	if (!rport->suspended)  in rockchip_usb2phy_power_on()
483 	ret = clk_prepare_enable(rphy->clk480m);  in rockchip_usb2phy_power_on()
487 	ret = property_enable(base, &rport->port_cfg->phy_sus, false);  in rockchip_usb2phy_power_on()
494 	rport->suspended = false;  in rockchip_usb2phy_power_on()
501 	struct rockchip_usb2phy *rphy = dev_get_drvdata(phy->dev.parent);  in rockchip_usb2phy_power_off()
505 	dev_dbg(&rport->phy->dev, "port power off\n");  in rockchip_usb2phy_power_off()
507 	if (rport->suspended)  in rockchip_usb2phy_power_off()
510 	ret = property_enable(base, &rport->port_cfg->phy_sus, true);  in rockchip_usb2phy_power_off()
514 	rport->suspended = true;  in rockchip_usb2phy_power_off()
515 	clk_disable_unprepare(rphy->clk480m);  in rockchip_usb2phy_power_off()
524 	if (rport->port_id == USB2PHY_PORT_OTG &&  in rockchip_usb2phy_exit()
525 	    rport->mode != USB_DR_MODE_HOST &&  in rockchip_usb2phy_exit()
526 	    rport->mode != USB_DR_MODE_UNKNOWN) {  in rockchip_usb2phy_exit()
527 		cancel_delayed_work_sync(&rport->otg_sm_work);  in rockchip_usb2phy_exit()
528 		cancel_delayed_work_sync(&rport->chg_work);  in rockchip_usb2phy_exit()
529 	} else if (rport->port_id == USB2PHY_PORT_HOST)  in rockchip_usb2phy_exit()
530 		cancel_delayed_work_sync(&rport->sm_work);  in rockchip_usb2phy_exit()
548 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_otg_sm_work()
553 	vbus_attach = property_enabled(rphy->grf,  in rockchip_usb2phy_otg_sm_work()
554 				       &rport->port_cfg->utmi_bvalid);  in rockchip_usb2phy_otg_sm_work()
559 	dev_dbg(&rport->phy->dev, "%s otg sm work\n",  in rockchip_usb2phy_otg_sm_work()
560 		usb_otg_state_string(rport->state));  in rockchip_usb2phy_otg_sm_work()
562 	switch (rport->state) {  in rockchip_usb2phy_otg_sm_work()
564 		rport->state = OTG_STATE_B_IDLE;  in rockchip_usb2phy_otg_sm_work()
566 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_otg_sm_work()
569 		if (extcon_get_state(rphy->edev, EXTCON_USB_HOST) > 0) {  in rockchip_usb2phy_otg_sm_work()
570 			dev_dbg(&rport->phy->dev, "usb otg host connect\n");  in rockchip_usb2phy_otg_sm_work()
571 			rport->state = OTG_STATE_A_HOST;  in rockchip_usb2phy_otg_sm_work()
572 			rockchip_usb2phy_power_on(rport->phy);  in rockchip_usb2phy_otg_sm_work()
575 			dev_dbg(&rport->phy->dev, "vbus_attach\n");  in rockchip_usb2phy_otg_sm_work()
576 			switch (rphy->chg_state) {  in rockchip_usb2phy_otg_sm_work()
578 				schedule_delayed_work(&rport->chg_work, 0);  in rockchip_usb2phy_otg_sm_work()
581 				switch (rphy->chg_type) {  in rockchip_usb2phy_otg_sm_work()
583 					dev_dbg(&rport->phy->dev, "sdp cable is connected\n");  in rockchip_usb2phy_otg_sm_work()
584 					rockchip_usb2phy_power_on(rport->phy);  in rockchip_usb2phy_otg_sm_work()
585 					rport->state = OTG_STATE_B_PERIPHERAL;  in rockchip_usb2phy_otg_sm_work()
591 					dev_dbg(&rport->phy->dev, "dcp cable is connected\n");  in rockchip_usb2phy_otg_sm_work()
592 					rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_otg_sm_work()
598 					dev_dbg(&rport->phy->dev, "cdp cable is connected\n");  in rockchip_usb2phy_otg_sm_work()
599 					rockchip_usb2phy_power_on(rport->phy);  in rockchip_usb2phy_otg_sm_work()
600 					rport->state = OTG_STATE_B_PERIPHERAL;  in rockchip_usb2phy_otg_sm_work()
614 			rphy->chg_state = USB_CHG_STATE_UNDEFINED;  in rockchip_usb2phy_otg_sm_work()
615 			rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;  in rockchip_usb2phy_otg_sm_work()
618 		if (rport->vbus_attached != vbus_attach) {  in rockchip_usb2phy_otg_sm_work()
619 			rport->vbus_attached = vbus_attach;  in rockchip_usb2phy_otg_sm_work()
621 			if (notify_charger && rphy->edev) {  in rockchip_usb2phy_otg_sm_work()
622 				extcon_set_state_sync(rphy->edev,  in rockchip_usb2phy_otg_sm_work()
625 					extcon_set_state_sync(rphy->edev,  in rockchip_usb2phy_otg_sm_work()
633 			dev_dbg(&rport->phy->dev, "usb disconnect\n");  in rockchip_usb2phy_otg_sm_work()
634 			rphy->chg_state = USB_CHG_STATE_UNDEFINED;  in rockchip_usb2phy_otg_sm_work()
635 			rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;  in rockchip_usb2phy_otg_sm_work()
636 			rport->state = OTG_STATE_B_IDLE;  in rockchip_usb2phy_otg_sm_work()
638 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_otg_sm_work()
643 		if (extcon_get_state(rphy->edev, EXTCON_USB_HOST) == 0) {  in rockchip_usb2phy_otg_sm_work()
644 			dev_dbg(&rport->phy->dev, "usb otg host disconnect\n");  in rockchip_usb2phy_otg_sm_work()
645 			rport->state = OTG_STATE_B_IDLE;  in rockchip_usb2phy_otg_sm_work()
646 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_otg_sm_work()
654 		schedule_delayed_work(&rport->otg_sm_work, delay);  in rockchip_usb2phy_otg_sm_work()
676 	property_enable(base, &rphy->phy_cfg->chg_det.rdm_pdwn_en, en);  in rockchip_chg_enable_dcd()
677 	property_enable(base, &rphy->phy_cfg->chg_det.idp_src_en, en);  in rockchip_chg_enable_dcd()
685 	property_enable(base, &rphy->phy_cfg->chg_det.vdp_src_en, en);  in rockchip_chg_enable_primary_det()
686 	property_enable(base, &rphy->phy_cfg->chg_det.idm_sink_en, en);  in rockchip_chg_enable_primary_det()
694 	property_enable(base, &rphy->phy_cfg->chg_det.vdm_src_en, en);  in rockchip_chg_enable_secondary_det()
695 	property_enable(base, &rphy->phy_cfg->chg_det.idp_sink_en, en);  in rockchip_chg_enable_secondary_det()
706 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_chg_detect_work()
711 	dev_dbg(&rport->phy->dev, "chg detection work state = %d\n",  in rockchip_chg_detect_work()
712 		rphy->chg_state);  in rockchip_chg_detect_work()
713 	switch (rphy->chg_state) {  in rockchip_chg_detect_work()
715 		if (!rport->suspended)  in rockchip_chg_detect_work()
716 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_chg_detect_work()
717 		/* put the controller in non-driving mode */  in rockchip_chg_detect_work()
718 		property_enable(base, &rphy->phy_cfg->chg_det.opmode, false);  in rockchip_chg_detect_work()
721 		rphy->chg_state = USB_CHG_STATE_WAIT_FOR_DCD;  in rockchip_chg_detect_work()
722 		rphy->dcd_retries = 0;  in rockchip_chg_detect_work()
727 		is_dcd = property_enabled(rphy->grf,  in rockchip_chg_detect_work()
728 					  &rphy->phy_cfg->chg_det.dp_det);  in rockchip_chg_detect_work()
729 		tmout = ++rphy->dcd_retries == CHG_DCD_MAX_RETRIES;  in rockchip_chg_detect_work()
738 			rphy->chg_state = USB_CHG_STATE_DCD_DONE;  in rockchip_chg_detect_work()
745 		vout = property_enabled(rphy->grf,  in rockchip_chg_detect_work()
746 					&rphy->phy_cfg->chg_det.cp_det);  in rockchip_chg_detect_work()
752 			rphy->chg_state = USB_CHG_STATE_PRIMARY_DONE;  in rockchip_chg_detect_work()
754 			if (rphy->dcd_retries == CHG_DCD_MAX_RETRIES) {  in rockchip_chg_detect_work()
756 				rphy->chg_type = POWER_SUPPLY_TYPE_USB_DCP;  in rockchip_chg_detect_work()
757 				rphy->chg_state = USB_CHG_STATE_DETECTED;  in rockchip_chg_detect_work()
760 				rphy->chg_type = POWER_SUPPLY_TYPE_USB;  in rockchip_chg_detect_work()
761 				rphy->chg_state = USB_CHG_STATE_DETECTED;  in rockchip_chg_detect_work()
767 		vout = property_enabled(rphy->grf,  in rockchip_chg_detect_work()
768 					&rphy->phy_cfg->chg_det.dcp_det);  in rockchip_chg_detect_work()
772 			rphy->chg_type = POWER_SUPPLY_TYPE_USB_DCP;  in rockchip_chg_detect_work()
774 			rphy->chg_type = POWER_SUPPLY_TYPE_USB_CDP;  in rockchip_chg_detect_work()
777 		rphy->chg_state = USB_CHG_STATE_DETECTED;  in rockchip_chg_detect_work()
781 		property_enable(base, &rphy->phy_cfg->chg_det.opmode, true);  in rockchip_chg_detect_work()
782 		rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work);  in rockchip_chg_detect_work()
783 		dev_dbg(&rport->phy->dev, "charger = %s\n",  in rockchip_chg_detect_work()
784 			 chg_to_string(rphy->chg_type));  in rockchip_chg_detect_work()
790 	schedule_delayed_work(&rport->chg_work, delay);  in rockchip_chg_detect_work()
794  * The function manage host-phy port state and suspend/resume phy port
810 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_sm_work()
811 	unsigned int sh = rport->port_cfg->utmi_hstdet.bitend -  in rockchip_usb2phy_sm_work()
812 			  rport->port_cfg->utmi_hstdet.bitstart + 1;  in rockchip_usb2phy_sm_work()
817 	mutex_lock(&rport->mutex);  in rockchip_usb2phy_sm_work()
819 	ret = regmap_read(rphy->grf, rport->port_cfg->utmi_ls.offset, &ul);  in rockchip_usb2phy_sm_work()
823 	ret = regmap_read(rphy->grf, rport->port_cfg->utmi_hstdet.offset, &uhd);  in rockchip_usb2phy_sm_work()
827 	uhd_mask = GENMASK(rport->port_cfg->utmi_hstdet.bitend,  in rockchip_usb2phy_sm_work()
828 			   rport->port_cfg->utmi_hstdet.bitstart);  in rockchip_usb2phy_sm_work()
829 	ul_mask = GENMASK(rport->port_cfg->utmi_ls.bitend,  in rockchip_usb2phy_sm_work()
830 			  rport->port_cfg->utmi_ls.bitstart);  in rockchip_usb2phy_sm_work()
833 	state = ((uhd & uhd_mask) >> rport->port_cfg->utmi_hstdet.bitstart) |  in rockchip_usb2phy_sm_work()
834 		(((ul & ul_mask) >> rport->port_cfg->utmi_ls.bitstart) << sh);  in rockchip_usb2phy_sm_work()
838 		dev_dbg(&rport->phy->dev, "HS online\n");  in rockchip_usb2phy_sm_work()
846 		 * Plus, there are two cases, one is D- Line pull-up, and D+  in rockchip_usb2phy_sm_work()
847 		 * line pull-down, the state is 4; another is D+ line pull-up,  in rockchip_usb2phy_sm_work()
848 		 * and D- line pull-down, the state is 2.  in rockchip_usb2phy_sm_work()
850 		if (!rport->suspended) {  in rockchip_usb2phy_sm_work()
851 			/* D- line pull-up, D+ line pull-down */  in rockchip_usb2phy_sm_work()
852 			dev_dbg(&rport->phy->dev, "FS/LS online\n");  in rockchip_usb2phy_sm_work()
857 		if (rport->suspended) {  in rockchip_usb2phy_sm_work()
858 			dev_dbg(&rport->phy->dev, "Connected\n");  in rockchip_usb2phy_sm_work()
859 			rockchip_usb2phy_power_on(rport->phy);  in rockchip_usb2phy_sm_work()
860 			rport->suspended = false;  in rockchip_usb2phy_sm_work()
862 			/* D+ line pull-up, D- line pull-down */  in rockchip_usb2phy_sm_work()
863 			dev_dbg(&rport->phy->dev, "FS/LS online\n");  in rockchip_usb2phy_sm_work()
867 		if (!rport->suspended) {  in rockchip_usb2phy_sm_work()
868 			dev_dbg(&rport->phy->dev, "Disconnected\n");  in rockchip_usb2phy_sm_work()
869 			rockchip_usb2phy_power_off(rport->phy);  in rockchip_usb2phy_sm_work()
870 			rport->suspended = true;  in rockchip_usb2phy_sm_work()
875 		 * plug-in irq.  in rockchip_usb2phy_sm_work()
877 		property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true);  in rockchip_usb2phy_sm_work()
878 		property_enable(rphy->grf, &rport->port_cfg->ls_det_en, true);  in rockchip_usb2phy_sm_work()
884 		mutex_unlock(&rport->mutex);  in rockchip_usb2phy_sm_work()
887 		dev_dbg(&rport->phy->dev, "unknown phy state\n");  in rockchip_usb2phy_sm_work()
892 	mutex_unlock(&rport->mutex);  in rockchip_usb2phy_sm_work()
893 	schedule_delayed_work(&rport->sm_work, SCHEDULE_DELAY);  in rockchip_usb2phy_sm_work()
899 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_linestate_irq()
901 	if (!property_enabled(rphy->grf, &rport->port_cfg->ls_det_st))  in rockchip_usb2phy_linestate_irq()
904 	mutex_lock(&rport->mutex);  in rockchip_usb2phy_linestate_irq()
907 	property_enable(rphy->grf, &rport->port_cfg->ls_det_en, false);  in rockchip_usb2phy_linestate_irq()
908 	property_enable(rphy->grf, &rport->port_cfg->ls_det_clr, true);  in rockchip_usb2phy_linestate_irq()
910 	mutex_unlock(&rport->mutex);  in rockchip_usb2phy_linestate_irq()
917 	if (rport->suspended && rport->port_id == USB2PHY_PORT_HOST)  in rockchip_usb2phy_linestate_irq()
918 		rockchip_usb2phy_sm_work(&rport->sm_work.work);  in rockchip_usb2phy_linestate_irq()
926 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_bvalid_irq()
928 	if (!property_enabled(rphy->grf, &rport->port_cfg->bvalid_det_st))  in rockchip_usb2phy_bvalid_irq()
932 	property_enable(rphy->grf, &rport->port_cfg->bvalid_det_clr, true);  in rockchip_usb2phy_bvalid_irq()
934 	rockchip_usb2phy_otg_sm_work(&rport->otg_sm_work.work);  in rockchip_usb2phy_bvalid_irq()
942 	struct rockchip_usb2phy *rphy = dev_get_drvdata(rport->phy->dev.parent);  in rockchip_usb2phy_id_irq()
945 	if (!property_enabled(rphy->grf, &rport->port_cfg->id_det_st))  in rockchip_usb2phy_id_irq()
949 	property_enable(rphy->grf, &rport->port_cfg->id_det_clr, true);  in rockchip_usb2phy_id_irq()
951 	id = property_enabled(rphy->grf, &rport->port_cfg->utmi_id);  in rockchip_usb2phy_id_irq()
952 	extcon_set_state_sync(rphy->edev, EXTCON_USB_HOST, !id);  in rockchip_usb2phy_id_irq()
974 	for (index = 0; index < rphy->phy_cfg->num_ports; index++) {  in rockchip_usb2phy_irq()
975 		rport = &rphy->ports[index];  in rockchip_usb2phy_irq()
976 		if (!rport->phy)  in rockchip_usb2phy_irq()
979 		switch (rport->port_id) {  in rockchip_usb2phy_irq()
981 			if (rport->mode != USB_DR_MODE_HOST &&  in rockchip_usb2phy_irq()
982 			    rport->mode != USB_DR_MODE_UNKNOWN)  in rockchip_usb2phy_irq()
1004 	if (rphy->irq > 0)  in rockchip_usb2phy_port_irq_init()
1007 	switch (rport->port_id) {  in rockchip_usb2phy_port_irq_init()
1009 		rport->ls_irq = of_irq_get_byname(child_np, "linestate");  in rockchip_usb2phy_port_irq_init()
1010 		if (rport->ls_irq < 0) {  in rockchip_usb2phy_port_irq_init()
1011 			dev_err(rphy->dev, "no linestate irq provided\n");  in rockchip_usb2phy_port_irq_init()
1012 			return rport->ls_irq;  in rockchip_usb2phy_port_irq_init()
1015 		ret = devm_request_threaded_irq(rphy->dev, rport->ls_irq, NULL,  in rockchip_usb2phy_port_irq_init()
1020 			dev_err(rphy->dev, "failed to request linestate irq handle\n");  in rockchip_usb2phy_port_irq_init()
1026 		 * Some SoCs use one interrupt with otg-id/otg-bvalid/linestate  in rockchip_usb2phy_port_irq_init()
1027 		 * interrupts muxed together, so probe the otg-mux interrupt first,  in rockchip_usb2phy_port_irq_init()
1030 		rport->otg_mux_irq = of_irq_get_byname(child_np, "otg-mux");  in rockchip_usb2phy_port_irq_init()
1031 		if (rport->otg_mux_irq > 0) {  in rockchip_usb2phy_port_irq_init()
1032 			ret = devm_request_threaded_irq(rphy->dev, rport->otg_mux_irq,  in rockchip_usb2phy_port_irq_init()
1039 				dev_err(rphy->dev,  in rockchip_usb2phy_port_irq_init()
1040 					"failed to request otg-mux irq handle\n");  in rockchip_usb2phy_port_irq_init()
1044 			rport->bvalid_irq = of_irq_get_byname(child_np, "otg-bvalid");  in rockchip_usb2phy_port_irq_init()
1045 			if (rport->bvalid_irq < 0) {  in rockchip_usb2phy_port_irq_init()
1046 				dev_err(rphy->dev, "no vbus valid irq provided\n");  in rockchip_usb2phy_port_irq_init()
1047 				ret = rport->bvalid_irq;  in rockchip_usb2phy_port_irq_init()
1051 			ret = devm_request_threaded_irq(rphy->dev, rport->bvalid_irq,  in rockchip_usb2phy_port_irq_init()
1058 				dev_err(rphy->dev,  in rockchip_usb2phy_port_irq_init()
1059 					"failed to request otg-bvalid irq handle\n");  in rockchip_usb2phy_port_irq_init()
1063 			rport->id_irq = of_irq_get_byname(child_np, "otg-id");  in rockchip_usb2phy_port_irq_init()
1064 			if (rport->id_irq < 0) {  in rockchip_usb2phy_port_irq_init()
1065 				dev_err(rphy->dev, "no otg-id irq provided\n");  in rockchip_usb2phy_port_irq_init()
1066 				ret = rport->id_irq;  in rockchip_usb2phy_port_irq_init()
1070 			ret = devm_request_threaded_irq(rphy->dev, rport->id_irq,  in rockchip_usb2phy_port_irq_init()
1077 				dev_err(rphy->dev,  in rockchip_usb2phy_port_irq_init()
1078 					"failed to request otg-id irq handle\n");  in rockchip_usb2phy_port_irq_init()
1084 		return -EINVAL;  in rockchip_usb2phy_port_irq_init()
1096 	rport->port_id = USB2PHY_PORT_HOST;  in rockchip_usb2phy_host_port_init()
1097 	rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_HOST];  in rockchip_usb2phy_host_port_init()
1098 	rport->suspended = true;  in rockchip_usb2phy_host_port_init()
1100 	mutex_init(&rport->mutex);  in rockchip_usb2phy_host_port_init()
1101 	INIT_DELAYED_WORK(&rport->sm_work, rockchip_usb2phy_sm_work);  in rockchip_usb2phy_host_port_init()
1105 		dev_err(rphy->dev, "failed to setup host irq\n");  in rockchip_usb2phy_host_port_init()
1118 	schedule_delayed_work(&rport->otg_sm_work, OTG_SCHEDULE_DELAY);  in rockchip_otg_event()
1129 	rport->port_id = USB2PHY_PORT_OTG;  in rockchip_usb2phy_otg_port_init()
1130 	rport->port_cfg = &rphy->phy_cfg->port_cfgs[USB2PHY_PORT_OTG];  in rockchip_usb2phy_otg_port_init()
1131 	rport->state = OTG_STATE_UNDEFINED;  in rockchip_usb2phy_otg_port_init()
1135 	 * put phy in suspend mode, it aims to enable usb  in rockchip_usb2phy_otg_port_init()
1136 	 * phy and clock in power_on() called by usb controller  in rockchip_usb2phy_otg_port_init()
1139 	rport->suspended = true;  in rockchip_usb2phy_otg_port_init()
1140 	rport->vbus_attached = false;  in rockchip_usb2phy_otg_port_init()
1142 	mutex_init(&rport->mutex);  in rockchip_usb2phy_otg_port_init()
1144 	rport->mode = of_usb_get_dr_mode_by_phy(child_np, -1);  in rockchip_usb2phy_otg_port_init()
1145 	if (rport->mode == USB_DR_MODE_HOST ||  in rockchip_usb2phy_otg_port_init()
1146 	    rport->mode == USB_DR_MODE_UNKNOWN) {  in rockchip_usb2phy_otg_port_init()
1151 	INIT_DELAYED_WORK(&rport->chg_work, rockchip_chg_detect_work);  in rockchip_usb2phy_otg_port_init()
1152 	INIT_DELAYED_WORK(&rport->otg_sm_work, rockchip_usb2phy_otg_sm_work);  in rockchip_usb2phy_otg_port_init()
1156 		dev_err(rphy->dev, "failed to init irq for host port\n");  in rockchip_usb2phy_otg_port_init()
1160 	if (!IS_ERR(rphy->edev)) {  in rockchip_usb2phy_otg_port_init()
1161 		rport->event_nb.notifier_call = rockchip_otg_event;  in rockchip_usb2phy_otg_port_init()
1163 		ret = devm_extcon_register_notifier(rphy->dev, rphy->edev,  in rockchip_usb2phy_otg_port_init()
1164 					EXTCON_USB_HOST, &rport->event_nb);  in rockchip_usb2phy_otg_port_init()
1166 			dev_err(rphy->dev, "register USB HOST notifier failed\n");  in rockchip_usb2phy_otg_port_init()
1170 		if (!of_property_read_bool(rphy->dev->of_node, "extcon")) {  in rockchip_usb2phy_otg_port_init()
1171 			/* do initial sync of usb state */  in rockchip_usb2phy_otg_port_init()
1172 			id = property_enabled(rphy->grf, &rport->port_cfg->utmi_id);  in rockchip_usb2phy_otg_port_init()
1173 			extcon_set_state_sync(rphy->edev, EXTCON_USB_HOST, !id);  in rockchip_usb2phy_otg_port_init()
1183 	struct device *dev = &pdev->dev;  in rockchip_usb2phy_probe()
1184 	struct device_node *np = dev->of_node;  in rockchip_usb2phy_probe()
1195 		return -ENOMEM;  in rockchip_usb2phy_probe()
1197 	match = of_match_device(dev->driver->of_match_table, dev);  in rockchip_usb2phy_probe()
1198 	if (!match || !match->data) {  in rockchip_usb2phy_probe()
1200 		return -EINVAL;  in rockchip_usb2phy_probe()
1203 	if (!dev->parent || !dev->parent->of_node) {  in rockchip_usb2phy_probe()
1204 		rphy->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,usbgrf");  in rockchip_usb2phy_probe()
1205 		if (IS_ERR(rphy->grf)) {  in rockchip_usb2phy_probe()
1207 			return PTR_ERR(rphy->grf);  in rockchip_usb2phy_probe()
1212 		rphy->grf = syscon_node_to_regmap(dev->parent->of_node);  in rockchip_usb2phy_probe()
1213 		if (IS_ERR(rphy->grf))  in rockchip_usb2phy_probe()
1214 			return PTR_ERR(rphy->grf);  in rockchip_usb2phy_probe()
1217 	if (of_device_is_compatible(np, "rockchip,rv1108-usb2phy")) {  in rockchip_usb2phy_probe()
1218 		rphy->usbgrf =  in rockchip_usb2phy_probe()
1219 			syscon_regmap_lookup_by_phandle(dev->of_node,  in rockchip_usb2phy_probe()
1221 		if (IS_ERR(rphy->usbgrf))  in rockchip_usb2phy_probe()
1222 			return PTR_ERR(rphy->usbgrf);  in rockchip_usb2phy_probe()
1224 		rphy->usbgrf = NULL;  in rockchip_usb2phy_probe()
1230 		return -EINVAL;  in rockchip_usb2phy_probe()
1238 			return -EINVAL;  in rockchip_usb2phy_probe()
1242 	rphy->dev = dev;  in rockchip_usb2phy_probe()
1243 	phy_cfgs = match->data;  in rockchip_usb2phy_probe()
1244 	rphy->chg_state = USB_CHG_STATE_UNDEFINED;  in rockchip_usb2phy_probe()
1245 	rphy->chg_type = POWER_SUPPLY_TYPE_UNKNOWN;  in rockchip_usb2phy_probe()
1246 	rphy->irq = platform_get_irq_optional(pdev, 0);  in rockchip_usb2phy_probe()
1257 			rphy->phy_cfg = &phy_cfgs[index];  in rockchip_usb2phy_probe()
1264 	if (!rphy->phy_cfg) {  in rockchip_usb2phy_probe()
1265 		dev_err(dev, "no phy-config can be matched with %pOFn node\n",  in rockchip_usb2phy_probe()
1267 		return -EINVAL;  in rockchip_usb2phy_probe()
1270 	rphy->clk = of_clk_get_by_name(np, "phyclk");  in rockchip_usb2phy_probe()
1271 	if (!IS_ERR(rphy->clk)) {  in rockchip_usb2phy_probe()
1272 		clk_prepare_enable(rphy->clk);  in rockchip_usb2phy_probe()
1274 		dev_info(&pdev->dev, "no phyclk specified\n");  in rockchip_usb2phy_probe()
1275 		rphy->clk = NULL;  in rockchip_usb2phy_probe()
1286 		struct rockchip_usb2phy_port *rport = &rphy->ports[index];  in rockchip_usb2phy_probe()
1289 		/* This driver aims to support both otg-port and host-port */  in rockchip_usb2phy_probe()
1290 		if (!of_node_name_eq(child_np, "host-port") &&  in rockchip_usb2phy_probe()
1291 		    !of_node_name_eq(child_np, "otg-port"))  in rockchip_usb2phy_probe()
1301 		rport->phy = phy;  in rockchip_usb2phy_probe()
1302 		phy_set_drvdata(rport->phy, rport);  in rockchip_usb2phy_probe()
1305 		if (of_node_name_eq(child_np, "host-port")) {  in rockchip_usb2phy_probe()
1319 		if (++index >= rphy->phy_cfg->num_ports) {  in rockchip_usb2phy_probe()
1327 	if (rphy->irq > 0) {  in rockchip_usb2phy_probe()
1328 		ret = devm_request_threaded_irq(rphy->dev, rphy->irq, NULL,  in rockchip_usb2phy_probe()
1334 			dev_err(rphy->dev,  in rockchip_usb2phy_probe()
1345 	if (rphy->clk) {  in rockchip_usb2phy_probe()
1346 		clk_disable_unprepare(rphy->clk);  in rockchip_usb2phy_probe()
1347 		clk_put(rphy->clk);  in rockchip_usb2phy_probe()
1708 	{ .compatible = "rockchip,px30-usb2phy", .data = &rk3328_phy_cfgs },
1709 	{ .compatible = "rockchip,rk3228-usb2phy", .data = &rk3228_phy_cfgs },
1710 	{ .compatible = "rockchip,rk3308-usb2phy", .data = &rk3308_phy_cfgs },
1711 	{ .compatible = "rockchip,rk3328-usb2phy", .data = &rk3328_phy_cfgs },
1712 	{ .compatible = "rockchip,rk3366-usb2phy", .data = &rk3366_phy_cfgs },
1713 	{ .compatible = "rockchip,rk3399-usb2phy", .data = &rk3399_phy_cfgs },
1714 	{ .compatible = "rockchip,rk3568-usb2phy", .data = &rk3568_phy_cfgs },
1715 	{ .compatible = "rockchip,rv1108-usb2phy", .data = &rv1108_phy_cfgs },
1723 		.name	= "rockchip-usb2phy",
1729 MODULE_AUTHOR("Frank Wang <frank.wang@rock-chips.com>");