120 static void dwc3_qcom_vbus_override_enable(struct dwc3_qcom *qcom, bool enable)  in dwc3_qcom_vbus_override_enable()  argument
123 		dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL,  in dwc3_qcom_vbus_override_enable()
125 		dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_HS_PHY_CTRL,  in dwc3_qcom_vbus_override_enable()
128 		dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL,  in dwc3_qcom_vbus_override_enable()
130 		dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_HS_PHY_CTRL,  in dwc3_qcom_vbus_override_enable()
138 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, vbus_nb);  in dwc3_qcom_vbus_notifier()  local
141 	dwc3_qcom_vbus_override_enable(qcom, event);  in dwc3_qcom_vbus_notifier()
142 	qcom->mode = event ? USB_DR_MODE_PERIPHERAL : USB_DR_MODE_HOST;  in dwc3_qcom_vbus_notifier()
150 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, host_nb);  in dwc3_qcom_host_notifier()  local
153 	dwc3_qcom_vbus_override_enable(qcom, !event);  in dwc3_qcom_host_notifier()
154 	qcom->mode = event ? USB_DR_MODE_HOST : USB_DR_MODE_PERIPHERAL;  in dwc3_qcom_host_notifier()
159 static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom)  in dwc3_qcom_register_extcon()  argument
161 	struct device		*dev = qcom->dev;  in dwc3_qcom_register_extcon()
168 	qcom->edev = extcon_get_edev_by_phandle(dev, 0);  in dwc3_qcom_register_extcon()
169 	if (IS_ERR(qcom->edev))  in dwc3_qcom_register_extcon()
170 		return 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()
253 	qcom->icc_path_ddr = of_icc_get(dev, "usb-ddr");  in dwc3_qcom_interconnect_init()
254 	if (IS_ERR(qcom->icc_path_ddr)) {  in dwc3_qcom_interconnect_init()
256 				PTR_ERR(qcom->icc_path_ddr));  in dwc3_qcom_interconnect_init()
257 		return PTR_ERR(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_init()
260 	qcom->icc_path_apps = of_icc_get(dev, "apps-usb");  in dwc3_qcom_interconnect_init()
261 	if (IS_ERR(qcom->icc_path_apps)) {  in dwc3_qcom_interconnect_init()
263 				PTR_ERR(qcom->icc_path_apps));  in dwc3_qcom_interconnect_init()
264 		return PTR_ERR(qcom->icc_path_apps);  in dwc3_qcom_interconnect_init()
267 	max_speed = usb_get_maximum_speed(&qcom->dwc3->dev);  in dwc3_qcom_interconnect_init()
269 		ret = icc_set_bw(qcom->icc_path_ddr,  in dwc3_qcom_interconnect_init()
272 		ret = icc_set_bw(qcom->icc_path_ddr,  in dwc3_qcom_interconnect_init()
280 	ret = icc_set_bw(qcom->icc_path_apps, APPS_USB_AVG_BW, APPS_USB_PEAK_BW);  in dwc3_qcom_interconnect_init()
291  * @qcom:			Pointer to the concerned usb core.
295 static void dwc3_qcom_interconnect_exit(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_exit()  argument
297 	icc_put(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_exit()
298 	icc_put(qcom->icc_path_apps);  in dwc3_qcom_interconnect_exit()
302 static bool dwc3_qcom_is_host(struct dwc3_qcom *qcom)  in dwc3_qcom_is_host()  argument
304 	struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);  in dwc3_qcom_is_host()
309 static enum usb_device_speed dwc3_qcom_read_usb2_speed(struct dwc3_qcom *qcom)  in dwc3_qcom_read_usb2_speed()  argument
311 	struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);  in dwc3_qcom_read_usb2_speed()
358 static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)  in dwc3_qcom_disable_interrupts()  argument
360 	dwc3_qcom_disable_wakeup_irq(qcom->hs_phy_irq);  in dwc3_qcom_disable_interrupts()
362 	if (qcom->usb2_speed == USB_SPEED_LOW) {  in dwc3_qcom_disable_interrupts()
363 		dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
364 	} else if ((qcom->usb2_speed == USB_SPEED_HIGH) ||  in dwc3_qcom_disable_interrupts()
365 			(qcom->usb2_speed == USB_SPEED_FULL)) {  in dwc3_qcom_disable_interrupts()
366 		dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
368 		dwc3_qcom_disable_wakeup_irq(qcom->dp_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
369 		dwc3_qcom_disable_wakeup_irq(qcom->dm_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
372 	dwc3_qcom_disable_wakeup_irq(qcom->ss_phy_irq);  in dwc3_qcom_disable_interrupts()
375 static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)  in dwc3_qcom_enable_interrupts()  argument
377 	dwc3_qcom_enable_wakeup_irq(qcom->hs_phy_irq, 0);  in dwc3_qcom_enable_interrupts()
388 	if (qcom->usb2_speed == USB_SPEED_LOW) {  in dwc3_qcom_enable_interrupts()
389 		dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq,  in dwc3_qcom_enable_interrupts()
391 	} else if ((qcom->usb2_speed == USB_SPEED_HIGH) ||  in dwc3_qcom_enable_interrupts()
392 			(qcom->usb2_speed == USB_SPEED_FULL)) {  in dwc3_qcom_enable_interrupts()
393 		dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq,  in dwc3_qcom_enable_interrupts()
396 		dwc3_qcom_enable_wakeup_irq(qcom->dp_hs_phy_irq,  in dwc3_qcom_enable_interrupts()
398 		dwc3_qcom_enable_wakeup_irq(qcom->dm_hs_phy_irq,  in dwc3_qcom_enable_interrupts()
402 	dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq, 0);  in dwc3_qcom_enable_interrupts()
405 static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup)  in dwc3_qcom_suspend()  argument
410 	if (qcom->is_suspended)  in dwc3_qcom_suspend()
413 	val = readl(qcom->qscratch_base + PWR_EVNT_IRQ_STAT_REG);  in dwc3_qcom_suspend()
415 		dev_err(qcom->dev, "HS-PHY not in L2\n");  in dwc3_qcom_suspend()
417 	for (i = qcom->num_clocks - 1; i >= 0; i--)  in dwc3_qcom_suspend()
418 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_suspend()
420 	ret = dwc3_qcom_interconnect_disable(qcom);  in dwc3_qcom_suspend()
422 		dev_warn(qcom->dev, "failed to disable interconnect: %d\n", ret);  in dwc3_qcom_suspend()
428 	if (dwc3_qcom_is_host(qcom) && wakeup) {  in dwc3_qcom_suspend()
429 		qcom->usb2_speed = dwc3_qcom_read_usb2_speed(qcom);  in dwc3_qcom_suspend()
430 		dwc3_qcom_enable_interrupts(qcom);  in dwc3_qcom_suspend()
433 	qcom->is_suspended = true;  in dwc3_qcom_suspend()
438 static int dwc3_qcom_resume(struct dwc3_qcom *qcom, bool wakeup)  in dwc3_qcom_resume()  argument
443 	if (!qcom->is_suspended)  in dwc3_qcom_resume()
446 	if (dwc3_qcom_is_host(qcom) && wakeup)  in dwc3_qcom_resume()
447 		dwc3_qcom_disable_interrupts(qcom);  in dwc3_qcom_resume()
449 	for (i = 0; i < qcom->num_clocks; i++) {  in dwc3_qcom_resume()
450 		ret = clk_prepare_enable(qcom->clks[i]);  in dwc3_qcom_resume()
453 				clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_resume()
458 	ret = dwc3_qcom_interconnect_enable(qcom);  in dwc3_qcom_resume()
460 		dev_warn(qcom->dev, "failed to enable interconnect: %d\n", ret);  in dwc3_qcom_resume()
463 	dwc3_qcom_setbits(qcom->qscratch_base, PWR_EVNT_IRQ_STAT_REG,  in dwc3_qcom_resume()
466 	qcom->is_suspended = false;  in dwc3_qcom_resume()
473 	struct dwc3_qcom *qcom = data;  in qcom_dwc3_resume_irq()  local
474 	struct dwc3	*dwc = platform_get_drvdata(qcom->dwc3);  in qcom_dwc3_resume_irq()
477 	if (qcom->pm_suspended)  in qcom_dwc3_resume_irq()
484 	if (dwc3_qcom_is_host(qcom))  in qcom_dwc3_resume_irq()
490 static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom)  in dwc3_qcom_select_utmi_clk()  argument
493 	dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
498 	dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
503 	dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
510 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_get_irq()  local
511 	struct platform_device *pdev_irq = qcom->urs_usb ? qcom->urs_usb : pdev;  in dwc3_qcom_get_irq()
525 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_setup_irq()  local
526 	const struct dwc3_acpi_pdata *pdata = qcom->acpi_pdata;  in dwc3_qcom_setup_irq()
535 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
538 					"qcom_dwc3 HS", qcom);  in dwc3_qcom_setup_irq()
540 			dev_err(qcom->dev, "hs_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
543 		qcom->hs_phy_irq = irq;  in dwc3_qcom_setup_irq()
550 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
553 					"qcom_dwc3 DP_HS", qcom);  in dwc3_qcom_setup_irq()
555 			dev_err(qcom->dev, "dp_hs_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
558 		qcom->dp_hs_phy_irq = irq;  in dwc3_qcom_setup_irq()
565 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
568 					"qcom_dwc3 DM_HS", qcom);  in dwc3_qcom_setup_irq()
570 			dev_err(qcom->dev, "dm_hs_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
573 		qcom->dm_hs_phy_irq = irq;  in dwc3_qcom_setup_irq()
580 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
583 					"qcom_dwc3 SS", qcom);  in dwc3_qcom_setup_irq()
585 			dev_err(qcom->dev, "ss_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
588 		qcom->ss_phy_irq = irq;  in dwc3_qcom_setup_irq()
594 static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count)  in dwc3_qcom_clk_init()  argument
596 	struct device		*dev = qcom->dev;  in dwc3_qcom_clk_init()
606 	qcom->num_clocks = count;  in dwc3_qcom_clk_init()
608 	qcom->clks = devm_kcalloc(dev, qcom->num_clocks,  in dwc3_qcom_clk_init()
610 	if (!qcom->clks)  in dwc3_qcom_clk_init()
613 	for (i = 0; i < qcom->num_clocks; i++) {  in dwc3_qcom_clk_init()
620 				clk_put(qcom->clks[i]);  in dwc3_qcom_clk_init()
627 				clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_clk_init()
628 				clk_put(qcom->clks[i]);  in dwc3_qcom_clk_init()
635 		qcom->clks[i] = clk;  in dwc3_qcom_clk_init()
652 	struct dwc3_qcom	*qcom = platform_get_drvdata(pdev);  in dwc3_qcom_acpi_register_core()  local
655 	struct platform_device	*pdev_irq = qcom->urs_usb ? qcom->urs_usb :  in dwc3_qcom_acpi_register_core()
660 	qcom->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);  in dwc3_qcom_acpi_register_core()
661 	if (!qcom->dwc3)  in dwc3_qcom_acpi_register_core()
664 	qcom->dwc3->dev.parent = dev;  in dwc3_qcom_acpi_register_core()
665 	qcom->dwc3->dev.type = dev->type;  in dwc3_qcom_acpi_register_core()
666 	qcom->dwc3->dev.dma_mask = dev->dma_mask;  in dwc3_qcom_acpi_register_core()
667 	qcom->dwc3->dev.dma_parms = dev->dma_parms;  in dwc3_qcom_acpi_register_core()
668 	qcom->dwc3->dev.coherent_dma_mask = dev->coherent_dma_mask;  in dwc3_qcom_acpi_register_core()
672 		platform_device_put(qcom->dwc3);  in dwc3_qcom_acpi_register_core()
686 		qcom->acpi_pdata->dwc3_core_base_size;  in dwc3_qcom_acpi_register_core()
696 	ret = platform_device_add_resources(qcom->dwc3, child_res, 2);  in dwc3_qcom_acpi_register_core()
702 	ret = device_add_software_node(&qcom->dwc3->dev, &dwc3_qcom_swnode);  in dwc3_qcom_acpi_register_core()
708 	ret = platform_device_add(qcom->dwc3);  in dwc3_qcom_acpi_register_core()
711 		device_remove_software_node(&qcom->dwc3->dev);  in dwc3_qcom_acpi_register_core()
718 	platform_device_put(qcom->dwc3);  in dwc3_qcom_acpi_register_core()
725 	struct dwc3_qcom	*qcom = platform_get_drvdata(pdev);  in dwc3_qcom_of_register_core()  local
742 	qcom->dwc3 = of_find_device_by_node(dwc3_np);  in dwc3_qcom_of_register_core()
743 	if (!qcom->dwc3) {  in dwc3_qcom_of_register_core()
785 	struct dwc3_qcom	*qcom;  in dwc3_qcom_probe()  local
791 	qcom = devm_kzalloc(&pdev->dev, sizeof(*qcom), GFP_KERNEL);  in dwc3_qcom_probe()
792 	if (!qcom)  in dwc3_qcom_probe()
795 	platform_set_drvdata(pdev, qcom);  in dwc3_qcom_probe()
796 	qcom->dev = &pdev->dev;  in dwc3_qcom_probe()
799 		qcom->acpi_pdata = acpi_device_get_match_data(dev);  in dwc3_qcom_probe()
800 		if (!qcom->acpi_pdata) {  in dwc3_qcom_probe()
806 	qcom->resets = devm_reset_control_array_get_optional_exclusive(dev);  in dwc3_qcom_probe()
807 	if (IS_ERR(qcom->resets)) {  in dwc3_qcom_probe()
808 		ret = PTR_ERR(qcom->resets);  in dwc3_qcom_probe()
813 	ret = reset_control_assert(qcom->resets);  in dwc3_qcom_probe()
821 	ret = reset_control_deassert(qcom->resets);  in dwc3_qcom_probe()
827 	ret = dwc3_qcom_clk_init(qcom, of_clk_get_parent_count(np));  in dwc3_qcom_probe()
843 			qcom->acpi_pdata->qscratch_base_offset;  in dwc3_qcom_probe()
845 			qcom->acpi_pdata->qscratch_base_size;  in dwc3_qcom_probe()
847 		if (qcom->acpi_pdata->is_urs) {  in dwc3_qcom_probe()
848 			qcom->urs_usb = dwc3_qcom_create_urs_usb_platdev(dev);  in dwc3_qcom_probe()
849 			if (IS_ERR_OR_NULL(qcom->urs_usb)) {  in dwc3_qcom_probe()
851 				if (!qcom->urs_usb)  in dwc3_qcom_probe()
854 					return PTR_ERR(qcom->urs_usb);  in dwc3_qcom_probe()
859 	qcom->qscratch_base = devm_ioremap_resource(dev, parent_res);  in dwc3_qcom_probe()
860 	if (IS_ERR(qcom->qscratch_base)) {  in dwc3_qcom_probe()
861 		ret = PTR_ERR(qcom->qscratch_base);  in dwc3_qcom_probe()
876 				"qcom,select-utmi-as-pipe-clk");  in dwc3_qcom_probe()
878 		dwc3_qcom_select_utmi_clk(qcom);  in dwc3_qcom_probe()
890 	ret = dwc3_qcom_interconnect_init(qcom);  in dwc3_qcom_probe()
894 	qcom->mode = usb_get_dr_mode(&qcom->dwc3->dev);  in dwc3_qcom_probe()
897 	if (qcom->mode == USB_DR_MODE_PERIPHERAL)  in dwc3_qcom_probe()
898 		dwc3_qcom_vbus_override_enable(qcom, true);  in dwc3_qcom_probe()
901 	ret = dwc3_qcom_register_extcon(qcom);  in dwc3_qcom_probe()
907 	device_init_wakeup(&qcom->dwc3->dev, wakeup_source);  in dwc3_qcom_probe()
909 	qcom->is_suspended = false;  in dwc3_qcom_probe()
917 	dwc3_qcom_interconnect_exit(qcom);  in dwc3_qcom_probe()
924 	for (i = qcom->num_clocks - 1; i >= 0; i--) {  in dwc3_qcom_probe()
925 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_probe()
926 		clk_put(qcom->clks[i]);  in dwc3_qcom_probe()
929 	reset_control_assert(qcom->resets);  in dwc3_qcom_probe()
936 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_remove()  local
940 	device_remove_software_node(&qcom->dwc3->dev);  in dwc3_qcom_remove()
943 	for (i = qcom->num_clocks - 1; i >= 0; i--) {  in dwc3_qcom_remove()
944 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_remove()
945 		clk_put(qcom->clks[i]);  in dwc3_qcom_remove()
947 	qcom->num_clocks = 0;  in dwc3_qcom_remove()
949 	dwc3_qcom_interconnect_exit(qcom);  in dwc3_qcom_remove()
950 	reset_control_assert(qcom->resets);  in dwc3_qcom_remove()
960 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_pm_suspend()  local
964 	ret = dwc3_qcom_suspend(qcom, wakeup);  in dwc3_qcom_pm_suspend()
968 	qcom->pm_suspended = true;  in dwc3_qcom_pm_suspend()
975 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_pm_resume()  local
979 	ret = dwc3_qcom_resume(qcom, wakeup);  in dwc3_qcom_pm_resume()
983 	qcom->pm_suspended = false;  in dwc3_qcom_pm_resume()
990 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_runtime_suspend()  local
992 	return dwc3_qcom_suspend(qcom, true);  in dwc3_qcom_runtime_suspend()
997 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_runtime_resume()  local
999 	return dwc3_qcom_resume(qcom, true);  in dwc3_qcom_runtime_resume()
1009 	{ .compatible = "qcom,dwc3" },
1050 		.name	= "dwc3-qcom",
1060 MODULE_DESCRIPTION("DesignWare DWC3 QCOM Glue Driver");