119 static void dwc3_qcom_vbus_override_enable(struct dwc3_qcom *qcom, bool enable)  in dwc3_qcom_vbus_override_enable()  argument
122 		dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL,  in dwc3_qcom_vbus_override_enable()
124 		dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_HS_PHY_CTRL,  in dwc3_qcom_vbus_override_enable()
127 		dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL,  in dwc3_qcom_vbus_override_enable()
129 		dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_HS_PHY_CTRL,  in dwc3_qcom_vbus_override_enable()
137 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, vbus_nb);  in dwc3_qcom_vbus_notifier()  local
140 	dwc3_qcom_vbus_override_enable(qcom, event);  in dwc3_qcom_vbus_notifier()
141 	qcom->mode = event ? USB_DR_MODE_PERIPHERAL : USB_DR_MODE_HOST;  in dwc3_qcom_vbus_notifier()
149 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, host_nb);  in dwc3_qcom_host_notifier()  local
152 	dwc3_qcom_vbus_override_enable(qcom, !event);  in dwc3_qcom_host_notifier()
153 	qcom->mode = event ? USB_DR_MODE_HOST : USB_DR_MODE_PERIPHERAL;  in dwc3_qcom_host_notifier()
158 static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom)  in dwc3_qcom_register_extcon()  argument
160 	struct device		*dev = qcom->dev;  in dwc3_qcom_register_extcon()
167 	qcom->edev = extcon_get_edev_by_phandle(dev, 0);  in dwc3_qcom_register_extcon()
168 	if (IS_ERR(qcom->edev))  in dwc3_qcom_register_extcon()
169 		return dev_err_probe(dev, PTR_ERR(qcom->edev),  in dwc3_qcom_register_extcon()
172 	qcom->vbus_nb.notifier_call = dwc3_qcom_vbus_notifier;  in dwc3_qcom_register_extcon()
174 	qcom->host_edev = extcon_get_edev_by_phandle(dev, 1);  in dwc3_qcom_register_extcon()
175 	if (IS_ERR(qcom->host_edev))  in dwc3_qcom_register_extcon()
176 		qcom->host_edev = NULL;  in dwc3_qcom_register_extcon()
178 	ret = devm_extcon_register_notifier(dev, qcom->edev, EXTCON_USB,  in dwc3_qcom_register_extcon()
179 					    &qcom->vbus_nb);  in dwc3_qcom_register_extcon()
185 	if (qcom->host_edev)  in dwc3_qcom_register_extcon()
186 		host_edev = qcom->host_edev;  in dwc3_qcom_register_extcon()
188 		host_edev = qcom->edev;  in dwc3_qcom_register_extcon()
190 	qcom->host_nb.notifier_call = dwc3_qcom_host_notifier;  in dwc3_qcom_register_extcon()
192 					    &qcom->host_nb);  in dwc3_qcom_register_extcon()
199 	if (extcon_get_state(qcom->edev, EXTCON_USB) ||  in dwc3_qcom_register_extcon()
201 		dwc3_qcom_vbus_notifier(&qcom->vbus_nb, true, qcom->edev);  in dwc3_qcom_register_extcon()
203 		dwc3_qcom_vbus_notifier(&qcom->vbus_nb, false, qcom->edev);  in dwc3_qcom_register_extcon()
208 static int dwc3_qcom_interconnect_enable(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_enable()  argument
212 	ret = icc_enable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_enable()
216 	ret = icc_enable(qcom->icc_path_apps);  in dwc3_qcom_interconnect_enable()
218 		icc_disable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_enable()
223 static int dwc3_qcom_interconnect_disable(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_disable()  argument
227 	ret = icc_disable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_disable()
231 	ret = icc_disable(qcom->icc_path_apps);  in dwc3_qcom_interconnect_disable()
233 		icc_enable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_disable()
241  * @qcom:			Pointer to the concerned usb core.
244 static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_init()  argument
247 	struct device *dev = qcom->dev;  in dwc3_qcom_interconnect_init()
250 	qcom->icc_path_ddr = of_icc_get(dev, "usb-ddr");  in dwc3_qcom_interconnect_init()
251 	if (IS_ERR(qcom->icc_path_ddr)) {  in dwc3_qcom_interconnect_init()
252 		return dev_err_probe(dev, PTR_ERR(qcom->icc_path_ddr),  in dwc3_qcom_interconnect_init()
256 	qcom->icc_path_apps = of_icc_get(dev, "apps-usb");  in dwc3_qcom_interconnect_init()
257 	if (IS_ERR(qcom->icc_path_apps)) {  in dwc3_qcom_interconnect_init()
258 		ret = dev_err_probe(dev, PTR_ERR(qcom->icc_path_apps),  in dwc3_qcom_interconnect_init()
263 	max_speed = usb_get_maximum_speed(&qcom->dwc3->dev);  in dwc3_qcom_interconnect_init()
265 		ret = icc_set_bw(qcom->icc_path_ddr,  in dwc3_qcom_interconnect_init()
268 		ret = icc_set_bw(qcom->icc_path_ddr,  in dwc3_qcom_interconnect_init()
276 	ret = icc_set_bw(qcom->icc_path_apps, APPS_USB_AVG_BW, APPS_USB_PEAK_BW);  in dwc3_qcom_interconnect_init()
285 	icc_put(qcom->icc_path_apps);  in dwc3_qcom_interconnect_init()
287 	icc_put(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_init()
293  * @qcom:			Pointer to the concerned usb core.
297 static void dwc3_qcom_interconnect_exit(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_exit()  argument
299 	icc_put(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_exit()
300 	icc_put(qcom->icc_path_apps);  in dwc3_qcom_interconnect_exit()
304 static bool dwc3_qcom_is_host(struct dwc3_qcom *qcom)  in dwc3_qcom_is_host()  argument
311 	dwc = platform_get_drvdata(qcom->dwc3);  in dwc3_qcom_is_host()
320 static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom, int port_index)  in dwc3_qcom_read_usb2_speed()  argument
322 	struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);  in dwc3_qcom_read_usb2_speed()
410 static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)  in dwc3_qcom_disable_interrupts()  argument
414 	for (i = 0; i < qcom->num_ports; i++)  in dwc3_qcom_disable_interrupts()
415 		dwc3_qcom_disable_port_interrupts(&qcom->ports[i]);  in dwc3_qcom_disable_interrupts()
418 static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)  in dwc3_qcom_enable_interrupts()  argument
422 	for (i = 0; i < qcom->num_ports; i++)  in dwc3_qcom_enable_interrupts()
423 		dwc3_qcom_enable_port_interrupts(&qcom->ports[i]);  in dwc3_qcom_enable_interrupts()
426 static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup)  in dwc3_qcom_suspend()  argument
431 	if (qcom->is_suspended)  in dwc3_qcom_suspend()
434 	for (i = 0; i < qcom->num_ports; i++) {  in dwc3_qcom_suspend()
435 		val = readl(qcom->qscratch_base + pwr_evnt_irq_stat_reg[i]);  in dwc3_qcom_suspend()
437 			dev_err(qcom->dev, "port-%d HS-PHY not in L2\n", i + 1);  in dwc3_qcom_suspend()
440 	for (i = qcom->num_clocks - 1; i >= 0; i--)  in dwc3_qcom_suspend()
441 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_suspend()
443 	ret = dwc3_qcom_interconnect_disable(qcom);  in dwc3_qcom_suspend()
445 		dev_warn(qcom->dev, "failed to disable interconnect: %d\n", ret);  in dwc3_qcom_suspend()
451 	if (dwc3_qcom_is_host(qcom) && wakeup) {  in dwc3_qcom_suspend()
452 		for (i = 0; i < qcom->num_ports; i++)  in dwc3_qcom_suspend()
453 			qcom->ports[i].usb2_speed = dwc3_qcom_read_usb2_speed(qcom, i);  in dwc3_qcom_suspend()
454 		dwc3_qcom_enable_interrupts(qcom);  in dwc3_qcom_suspend()
457 	qcom->is_suspended = true;  in dwc3_qcom_suspend()
462 static int dwc3_qcom_resume(struct dwc3_qcom *qcom, bool wakeup)  in dwc3_qcom_resume()  argument
467 	if (!qcom->is_suspended)  in dwc3_qcom_resume()
470 	if (dwc3_qcom_is_host(qcom) && wakeup)  in dwc3_qcom_resume()
471 		dwc3_qcom_disable_interrupts(qcom);  in dwc3_qcom_resume()
473 	for (i = 0; i < qcom->num_clocks; i++) {  in dwc3_qcom_resume()
474 		ret = clk_prepare_enable(qcom->clks[i]);  in dwc3_qcom_resume()
477 				clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_resume()
482 	ret = dwc3_qcom_interconnect_enable(qcom);  in dwc3_qcom_resume()
484 		dev_warn(qcom->dev, "failed to enable interconnect: %d\n", ret);  in dwc3_qcom_resume()
487 	for (i = 0; i < qcom->num_ports; i++) {  in dwc3_qcom_resume()
488 		dwc3_qcom_setbits(qcom->qscratch_base,  in dwc3_qcom_resume()
493 	qcom->is_suspended = false;  in dwc3_qcom_resume()
500 	struct dwc3_qcom *qcom = data;  in qcom_dwc3_resume_irq()  local
501 	struct dwc3	*dwc = platform_get_drvdata(qcom->dwc3);  in qcom_dwc3_resume_irq()
504 	if (qcom->pm_suspended)  in qcom_dwc3_resume_irq()
511 	if (dwc3_qcom_is_host(qcom))  in qcom_dwc3_resume_irq()
517 static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom)  in dwc3_qcom_select_utmi_clk()  argument
520 	dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
525 	dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
530 	dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
534 static int dwc3_qcom_request_irq(struct dwc3_qcom *qcom, int irq,  in dwc3_qcom_request_irq()  argument
540 	ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_request_irq()
543 					name, qcom);  in dwc3_qcom_request_irq()
545 		dev_err(qcom->dev, "failed to request irq %s: %d\n", name, ret);  in dwc3_qcom_request_irq()
552 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_setup_port_irq()  local
566 		ret = dwc3_qcom_request_irq(qcom, irq, irq_name);  in dwc3_qcom_setup_port_irq()
569 		qcom->ports[port_index].dp_hs_phy_irq = irq;  in dwc3_qcom_setup_port_irq()
581 		ret = dwc3_qcom_request_irq(qcom, irq, irq_name);  in dwc3_qcom_setup_port_irq()
584 		qcom->ports[port_index].dm_hs_phy_irq = irq;  in dwc3_qcom_setup_port_irq()
596 		ret = dwc3_qcom_request_irq(qcom, irq, irq_name);  in dwc3_qcom_setup_port_irq()
599 		qcom->ports[port_index].ss_phy_irq = irq;  in dwc3_qcom_setup_port_irq()
607 		ret = dwc3_qcom_request_irq(qcom, irq, "qusb2_phy");  in dwc3_qcom_setup_port_irq()
610 		qcom->ports[port_index].qusb2_phy_irq = irq;  in dwc3_qcom_setup_port_irq()
639 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_setup_irq()  local
644 	qcom->num_ports = dwc3_qcom_find_num_ports(pdev);  in dwc3_qcom_setup_irq()
645 	is_multiport = (qcom->num_ports > 1);  in dwc3_qcom_setup_irq()
647 	for (i = 0; i < qcom->num_ports; i++) {  in dwc3_qcom_setup_irq()
656 static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count)  in dwc3_qcom_clk_init()  argument
658 	struct device		*dev = qcom->dev;  in dwc3_qcom_clk_init()
668 	qcom->num_clocks = count;  in dwc3_qcom_clk_init()
670 	qcom->clks = devm_kcalloc(dev, qcom->num_clocks,  in dwc3_qcom_clk_init()
672 	if (!qcom->clks)  in dwc3_qcom_clk_init()
675 	for (i = 0; i < qcom->num_clocks; i++) {  in dwc3_qcom_clk_init()
682 				clk_put(qcom->clks[i]);  in dwc3_qcom_clk_init()
689 				clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_clk_init()
690 				clk_put(qcom->clks[i]);  in dwc3_qcom_clk_init()
697 		qcom->clks[i] = clk;  in dwc3_qcom_clk_init()
705 	struct dwc3_qcom	*qcom = platform_get_drvdata(pdev);  in dwc3_qcom_of_register_core()  local
723 	qcom->dwc3 = of_find_device_by_node(dwc3_np);  in dwc3_qcom_of_register_core()
724 	if (!qcom->dwc3) {  in dwc3_qcom_of_register_core()
737 	struct dwc3_qcom	*qcom;  in dwc3_qcom_probe()  local
742 	qcom = devm_kzalloc(&pdev->dev, sizeof(*qcom), GFP_KERNEL);  in dwc3_qcom_probe()
743 	if (!qcom)  in dwc3_qcom_probe()
746 	platform_set_drvdata(pdev, qcom);  in dwc3_qcom_probe()
747 	qcom->dev = &pdev->dev;  in dwc3_qcom_probe()
749 	qcom->resets = devm_reset_control_array_get_optional_exclusive(dev);  in dwc3_qcom_probe()
750 	if (IS_ERR(qcom->resets)) {  in dwc3_qcom_probe()
751 		return dev_err_probe(&pdev->dev, PTR_ERR(qcom->resets),  in dwc3_qcom_probe()
755 	ret = reset_control_assert(qcom->resets);  in dwc3_qcom_probe()
763 	ret = reset_control_deassert(qcom->resets);  in dwc3_qcom_probe()
769 	ret = dwc3_qcom_clk_init(qcom, of_clk_get_parent_count(np));  in dwc3_qcom_probe()
775 	qcom->qscratch_base = devm_platform_ioremap_resource(pdev, 0);  in dwc3_qcom_probe()
776 	if (IS_ERR(qcom->qscratch_base)) {  in dwc3_qcom_probe()
777 		ret = PTR_ERR(qcom->qscratch_base);  in dwc3_qcom_probe()
792 				"qcom,select-utmi-as-pipe-clk");  in dwc3_qcom_probe()
794 		dwc3_qcom_select_utmi_clk(qcom);  in dwc3_qcom_probe()
802 	ret = dwc3_qcom_interconnect_init(qcom);  in dwc3_qcom_probe()
806 	qcom->mode = usb_get_dr_mode(&qcom->dwc3->dev);  in dwc3_qcom_probe()
809 	if (qcom->mode != USB_DR_MODE_HOST)  in dwc3_qcom_probe()
810 		dwc3_qcom_vbus_override_enable(qcom, true);  in dwc3_qcom_probe()
813 	ret = dwc3_qcom_register_extcon(qcom);  in dwc3_qcom_probe()
819 	device_init_wakeup(&qcom->dwc3->dev, wakeup_source);  in dwc3_qcom_probe()
821 	qcom->is_suspended = false;  in dwc3_qcom_probe()
829 	dwc3_qcom_interconnect_exit(qcom);  in dwc3_qcom_probe()
832 	platform_device_put(qcom->dwc3);  in dwc3_qcom_probe()
834 	for (i = qcom->num_clocks - 1; i >= 0; i--) {  in dwc3_qcom_probe()
835 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_probe()
836 		clk_put(qcom->clks[i]);  in dwc3_qcom_probe()
839 	reset_control_assert(qcom->resets);  in dwc3_qcom_probe()
846 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_remove()  local
851 	platform_device_put(qcom->dwc3);  in dwc3_qcom_remove()
853 	for (i = qcom->num_clocks - 1; i >= 0; i--) {  in dwc3_qcom_remove()
854 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_remove()
855 		clk_put(qcom->clks[i]);  in dwc3_qcom_remove()
857 	qcom->num_clocks = 0;  in dwc3_qcom_remove()
859 	dwc3_qcom_interconnect_exit(qcom);  in dwc3_qcom_remove()
860 	reset_control_assert(qcom->resets);  in dwc3_qcom_remove()
868 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_pm_suspend()  local
872 	ret = dwc3_qcom_suspend(qcom, wakeup);  in dwc3_qcom_pm_suspend()
876 	qcom->pm_suspended = true;  in dwc3_qcom_pm_suspend()
883 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_pm_resume()  local
887 	ret = dwc3_qcom_resume(qcom, wakeup);  in dwc3_qcom_pm_resume()
891 	qcom->pm_suspended = false;  in dwc3_qcom_pm_resume()
898 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_runtime_suspend()  local
900 	return dwc3_qcom_suspend(qcom, true);  in dwc3_qcom_runtime_suspend()
905 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_runtime_resume()  local
907 	return dwc3_qcom_resume(qcom, true);  in dwc3_qcom_runtime_resume()
917 	{ .compatible = "qcom,dwc3" },
926 		.name	= "dwc3-qcom",
935 MODULE_DESCRIPTION("DesignWare DWC3 QCOM Glue Driver");