118 static void dwc3_qcom_vbus_overrride_enable(struct dwc3_qcom *qcom, bool enable)  in dwc3_qcom_vbus_overrride_enable()  argument
121 		dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL,  in dwc3_qcom_vbus_overrride_enable()
123 		dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_HS_PHY_CTRL,  in dwc3_qcom_vbus_overrride_enable()
126 		dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL,  in dwc3_qcom_vbus_overrride_enable()
128 		dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_HS_PHY_CTRL,  in dwc3_qcom_vbus_overrride_enable()
136 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, vbus_nb);  in dwc3_qcom_vbus_notifier()  local
139 	dwc3_qcom_vbus_overrride_enable(qcom, event);  in dwc3_qcom_vbus_notifier()
140 	qcom->mode = event ? USB_DR_MODE_PERIPHERAL : USB_DR_MODE_HOST;  in dwc3_qcom_vbus_notifier()
148 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, host_nb);  in dwc3_qcom_host_notifier()  local
151 	dwc3_qcom_vbus_overrride_enable(qcom, !event);  in dwc3_qcom_host_notifier()
152 	qcom->mode = event ? USB_DR_MODE_HOST : USB_DR_MODE_PERIPHERAL;  in dwc3_qcom_host_notifier()
157 static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom)  in dwc3_qcom_register_extcon()  argument
159 	struct device		*dev = qcom->dev;  in dwc3_qcom_register_extcon()
166 	qcom->edev = extcon_get_edev_by_phandle(dev, 0);  in dwc3_qcom_register_extcon()
167 	if (IS_ERR(qcom->edev))  in dwc3_qcom_register_extcon()
168 		return PTR_ERR(qcom->edev);  in dwc3_qcom_register_extcon()
170 	qcom->vbus_nb.notifier_call = dwc3_qcom_vbus_notifier;  in dwc3_qcom_register_extcon()
172 	qcom->host_edev = extcon_get_edev_by_phandle(dev, 1);  in dwc3_qcom_register_extcon()
173 	if (IS_ERR(qcom->host_edev))  in dwc3_qcom_register_extcon()
174 		qcom->host_edev = NULL;  in dwc3_qcom_register_extcon()
176 	ret = devm_extcon_register_notifier(dev, qcom->edev, EXTCON_USB,  in dwc3_qcom_register_extcon()
177 					    &qcom->vbus_nb);  in dwc3_qcom_register_extcon()
183 	if (qcom->host_edev)  in dwc3_qcom_register_extcon()
184 		host_edev = qcom->host_edev;  in dwc3_qcom_register_extcon()
186 		host_edev = qcom->edev;  in dwc3_qcom_register_extcon()
188 	qcom->host_nb.notifier_call = dwc3_qcom_host_notifier;  in dwc3_qcom_register_extcon()
190 					    &qcom->host_nb);  in dwc3_qcom_register_extcon()
197 	if (extcon_get_state(qcom->edev, EXTCON_USB) ||  in dwc3_qcom_register_extcon()
199 		dwc3_qcom_vbus_notifier(&qcom->vbus_nb, true, qcom->edev);  in dwc3_qcom_register_extcon()
201 		dwc3_qcom_vbus_notifier(&qcom->vbus_nb, false, qcom->edev);  in dwc3_qcom_register_extcon()
206 static int dwc3_qcom_interconnect_enable(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_enable()  argument
210 	ret = icc_enable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_enable()
214 	ret = icc_enable(qcom->icc_path_apps);  in dwc3_qcom_interconnect_enable()
216 		icc_disable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_enable()
221 static int dwc3_qcom_interconnect_disable(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_disable()  argument
225 	ret = icc_disable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_disable()
229 	ret = icc_disable(qcom->icc_path_apps);  in dwc3_qcom_interconnect_disable()
231 		icc_enable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_disable()
239  * @qcom:			Pointer to the concerned usb core.
242 static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_init()  argument
244 	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()
253 			PTR_ERR(qcom->icc_path_ddr));  in dwc3_qcom_interconnect_init()
254 		return PTR_ERR(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_init()
257 	qcom->icc_path_apps = of_icc_get(dev, "apps-usb");  in dwc3_qcom_interconnect_init()
258 	if (IS_ERR(qcom->icc_path_apps)) {  in dwc3_qcom_interconnect_init()
260 				PTR_ERR(qcom->icc_path_apps));  in dwc3_qcom_interconnect_init()
261 		return PTR_ERR(qcom->icc_path_apps);  in dwc3_qcom_interconnect_init()
264 	if (usb_get_maximum_speed(&qcom->dwc3->dev) >= USB_SPEED_SUPER ||  in dwc3_qcom_interconnect_init()
265 			usb_get_maximum_speed(&qcom->dwc3->dev) == USB_SPEED_UNKNOWN)  in dwc3_qcom_interconnect_init()
266 		ret = icc_set_bw(qcom->icc_path_ddr,  in dwc3_qcom_interconnect_init()
269 		ret = icc_set_bw(qcom->icc_path_ddr,  in dwc3_qcom_interconnect_init()
277 	ret = icc_set_bw(qcom->icc_path_apps,  in dwc3_qcom_interconnect_init()
289  * @qcom:			Pointer to the concerned usb core.
293 static void dwc3_qcom_interconnect_exit(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_exit()  argument
295 	icc_put(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_exit()
296 	icc_put(qcom->icc_path_apps);  in dwc3_qcom_interconnect_exit()
300 static bool dwc3_qcom_is_host(struct dwc3_qcom *qcom)  in dwc3_qcom_is_host()  argument
302 	struct dwc3 *dwc = platform_get_drvdata(qcom->dwc3);  in dwc3_qcom_is_host()
307 static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)  in dwc3_qcom_disable_interrupts()  argument
309 	if (qcom->hs_phy_irq) {  in dwc3_qcom_disable_interrupts()
310 		disable_irq_wake(qcom->hs_phy_irq);  in dwc3_qcom_disable_interrupts()
311 		disable_irq_nosync(qcom->hs_phy_irq);  in dwc3_qcom_disable_interrupts()
314 	if (qcom->dp_hs_phy_irq) {  in dwc3_qcom_disable_interrupts()
315 		disable_irq_wake(qcom->dp_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
316 		disable_irq_nosync(qcom->dp_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
319 	if (qcom->dm_hs_phy_irq) {  in dwc3_qcom_disable_interrupts()
320 		disable_irq_wake(qcom->dm_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
321 		disable_irq_nosync(qcom->dm_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
324 	if (qcom->ss_phy_irq) {  in dwc3_qcom_disable_interrupts()
325 		disable_irq_wake(qcom->ss_phy_irq);  in dwc3_qcom_disable_interrupts()
326 		disable_irq_nosync(qcom->ss_phy_irq);  in dwc3_qcom_disable_interrupts()
330 static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)  in dwc3_qcom_enable_interrupts()  argument
332 	if (qcom->hs_phy_irq) {  in dwc3_qcom_enable_interrupts()
333 		enable_irq(qcom->hs_phy_irq);  in dwc3_qcom_enable_interrupts()
334 		enable_irq_wake(qcom->hs_phy_irq);  in dwc3_qcom_enable_interrupts()
337 	if (qcom->dp_hs_phy_irq) {  in dwc3_qcom_enable_interrupts()
338 		enable_irq(qcom->dp_hs_phy_irq);  in dwc3_qcom_enable_interrupts()
339 		enable_irq_wake(qcom->dp_hs_phy_irq);  in dwc3_qcom_enable_interrupts()
342 	if (qcom->dm_hs_phy_irq) {  in dwc3_qcom_enable_interrupts()
343 		enable_irq(qcom->dm_hs_phy_irq);  in dwc3_qcom_enable_interrupts()
344 		enable_irq_wake(qcom->dm_hs_phy_irq);  in dwc3_qcom_enable_interrupts()
347 	if (qcom->ss_phy_irq) {  in dwc3_qcom_enable_interrupts()
348 		enable_irq(qcom->ss_phy_irq);  in dwc3_qcom_enable_interrupts()
349 		enable_irq_wake(qcom->ss_phy_irq);  in dwc3_qcom_enable_interrupts()
353 static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup)  in dwc3_qcom_suspend()  argument
358 	if (qcom->is_suspended)  in dwc3_qcom_suspend()
361 	val = readl(qcom->qscratch_base + PWR_EVNT_IRQ_STAT_REG);  in dwc3_qcom_suspend()
363 		dev_err(qcom->dev, "HS-PHY not in L2\n");  in dwc3_qcom_suspend()
365 	for (i = qcom->num_clocks - 1; i >= 0; i--)  in dwc3_qcom_suspend()
366 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_suspend()
368 	ret = dwc3_qcom_interconnect_disable(qcom);  in dwc3_qcom_suspend()
370 		dev_warn(qcom->dev, "failed to disable interconnect: %d\n", ret);  in dwc3_qcom_suspend()
373 		dwc3_qcom_enable_interrupts(qcom);  in dwc3_qcom_suspend()
375 	qcom->is_suspended = true;  in dwc3_qcom_suspend()
380 static int dwc3_qcom_resume(struct dwc3_qcom *qcom, bool wakeup)  in dwc3_qcom_resume()  argument
385 	if (!qcom->is_suspended)  in dwc3_qcom_resume()
389 		dwc3_qcom_disable_interrupts(qcom);  in dwc3_qcom_resume()
391 	for (i = 0; i < qcom->num_clocks; i++) {  in dwc3_qcom_resume()
392 		ret = clk_prepare_enable(qcom->clks[i]);  in dwc3_qcom_resume()
395 				clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_resume()
400 	ret = dwc3_qcom_interconnect_enable(qcom);  in dwc3_qcom_resume()
402 		dev_warn(qcom->dev, "failed to enable interconnect: %d\n", ret);  in dwc3_qcom_resume()
405 	dwc3_qcom_setbits(qcom->qscratch_base, PWR_EVNT_IRQ_STAT_REG,  in dwc3_qcom_resume()
408 	qcom->is_suspended = false;  in dwc3_qcom_resume()
415 	struct dwc3_qcom *qcom = data;  in qcom_dwc3_resume_irq()  local
416 	struct dwc3	*dwc = platform_get_drvdata(qcom->dwc3);  in qcom_dwc3_resume_irq()
419 	if (qcom->pm_suspended)  in qcom_dwc3_resume_irq()
426 	if (dwc3_qcom_is_host(qcom))  in qcom_dwc3_resume_irq()
432 static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom)  in dwc3_qcom_select_utmi_clk()  argument
435 	dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
440 	dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
445 	dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
452 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_get_irq()  local
453 	struct platform_device *pdev_irq = qcom->urs_usb ? qcom->urs_usb : pdev;  in dwc3_qcom_get_irq()
467 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_setup_irq()  local
468 	const struct dwc3_acpi_pdata *pdata = qcom->acpi_pdata;  in dwc3_qcom_setup_irq()
477 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
480 					"qcom_dwc3 HS", qcom);  in dwc3_qcom_setup_irq()
482 			dev_err(qcom->dev, "hs_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
485 		qcom->hs_phy_irq = irq;  in dwc3_qcom_setup_irq()
492 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
495 					"qcom_dwc3 DP_HS", qcom);  in dwc3_qcom_setup_irq()
497 			dev_err(qcom->dev, "dp_hs_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
500 		qcom->dp_hs_phy_irq = irq;  in dwc3_qcom_setup_irq()
507 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
510 					"qcom_dwc3 DM_HS", qcom);  in dwc3_qcom_setup_irq()
512 			dev_err(qcom->dev, "dm_hs_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
515 		qcom->dm_hs_phy_irq = irq;  in dwc3_qcom_setup_irq()
522 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
525 					"qcom_dwc3 SS", qcom);  in dwc3_qcom_setup_irq()
527 			dev_err(qcom->dev, "ss_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
530 		qcom->ss_phy_irq = irq;  in dwc3_qcom_setup_irq()
536 static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count)  in dwc3_qcom_clk_init()  argument
538 	struct device		*dev = qcom->dev;  in dwc3_qcom_clk_init()
548 	qcom->num_clocks = count;  in dwc3_qcom_clk_init()
550 	qcom->clks = devm_kcalloc(dev, qcom->num_clocks,  in dwc3_qcom_clk_init()
552 	if (!qcom->clks)  in dwc3_qcom_clk_init()
555 	for (i = 0; i < qcom->num_clocks; i++) {  in dwc3_qcom_clk_init()
562 				clk_put(qcom->clks[i]);  in dwc3_qcom_clk_init()
569 				clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_clk_init()
570 				clk_put(qcom->clks[i]);  in dwc3_qcom_clk_init()
577 		qcom->clks[i] = clk;  in dwc3_qcom_clk_init()
590 	struct dwc3_qcom	*qcom = platform_get_drvdata(pdev);  in dwc3_qcom_acpi_register_core()  local
593 	struct platform_device	*pdev_irq = qcom->urs_usb ? qcom->urs_usb :  in dwc3_qcom_acpi_register_core()
598 	qcom->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);  in dwc3_qcom_acpi_register_core()
599 	if (!qcom->dwc3)  in dwc3_qcom_acpi_register_core()
602 	qcom->dwc3->dev.parent = dev;  in dwc3_qcom_acpi_register_core()
603 	qcom->dwc3->dev.type = dev->type;  in dwc3_qcom_acpi_register_core()
604 	qcom->dwc3->dev.dma_mask = dev->dma_mask;  in dwc3_qcom_acpi_register_core()
605 	qcom->dwc3->dev.dma_parms = dev->dma_parms;  in dwc3_qcom_acpi_register_core()
606 	qcom->dwc3->dev.coherent_dma_mask = dev->coherent_dma_mask;  in dwc3_qcom_acpi_register_core()
622 		qcom->acpi_pdata->dwc3_core_base_size;  in dwc3_qcom_acpi_register_core()
632 	ret = platform_device_add_resources(qcom->dwc3, child_res, 2);  in dwc3_qcom_acpi_register_core()
638 	ret = platform_device_add_properties(qcom->dwc3,  in dwc3_qcom_acpi_register_core()
645 	ret = platform_device_add(qcom->dwc3);  in dwc3_qcom_acpi_register_core()
656 	struct dwc3_qcom	*qcom = platform_get_drvdata(pdev);  in dwc3_qcom_of_register_core()  local
673 	qcom->dwc3 = of_find_device_by_node(dwc3_np);  in dwc3_qcom_of_register_core()
674 	if (!qcom->dwc3) {  in dwc3_qcom_of_register_core()
716 	struct dwc3_qcom	*qcom;  in dwc3_qcom_probe()  local
721 	qcom = devm_kzalloc(&pdev->dev, sizeof(*qcom), GFP_KERNEL);  in dwc3_qcom_probe()
722 	if (!qcom)  in dwc3_qcom_probe()
725 	platform_set_drvdata(pdev, qcom);  in dwc3_qcom_probe()
726 	qcom->dev = &pdev->dev;  in dwc3_qcom_probe()
729 		qcom->acpi_pdata = acpi_device_get_match_data(dev);  in dwc3_qcom_probe()
730 		if (!qcom->acpi_pdata) {  in dwc3_qcom_probe()
736 	qcom->resets = devm_reset_control_array_get_optional_exclusive(dev);  in dwc3_qcom_probe()
737 	if (IS_ERR(qcom->resets)) {  in dwc3_qcom_probe()
738 		ret = PTR_ERR(qcom->resets);  in dwc3_qcom_probe()
743 	ret = reset_control_assert(qcom->resets);  in dwc3_qcom_probe()
751 	ret = reset_control_deassert(qcom->resets);  in dwc3_qcom_probe()
757 	ret = dwc3_qcom_clk_init(qcom, of_clk_get_parent_count(np));  in dwc3_qcom_probe()
773 			qcom->acpi_pdata->qscratch_base_offset;  in dwc3_qcom_probe()
775 			qcom->acpi_pdata->qscratch_base_size;  in dwc3_qcom_probe()
777 		if (qcom->acpi_pdata->is_urs) {  in dwc3_qcom_probe()
778 			qcom->urs_usb = dwc3_qcom_create_urs_usb_platdev(dev);  in dwc3_qcom_probe()
779 			if (IS_ERR_OR_NULL(qcom->urs_usb)) {  in dwc3_qcom_probe()
781 				if (!qcom->urs_usb)  in dwc3_qcom_probe()
784 					return PTR_ERR(qcom->urs_usb);  in dwc3_qcom_probe()
789 	qcom->qscratch_base = devm_ioremap_resource(dev, parent_res);  in dwc3_qcom_probe()
790 	if (IS_ERR(qcom->qscratch_base)) {  in dwc3_qcom_probe()
792 		ret = PTR_ERR(qcom->qscratch_base);  in dwc3_qcom_probe()
807 				"qcom,select-utmi-as-pipe-clk");  in dwc3_qcom_probe()
809 		dwc3_qcom_select_utmi_clk(qcom);  in dwc3_qcom_probe()
821 	ret = dwc3_qcom_interconnect_init(qcom);  in dwc3_qcom_probe()
825 	qcom->mode = usb_get_dr_mode(&qcom->dwc3->dev);  in dwc3_qcom_probe()
828 	if (qcom->mode == USB_DR_MODE_PERIPHERAL)  in dwc3_qcom_probe()
829 		dwc3_qcom_vbus_overrride_enable(qcom, true);  in dwc3_qcom_probe()
832 	ret = dwc3_qcom_register_extcon(qcom);  in dwc3_qcom_probe()
837 	qcom->is_suspended = false;  in dwc3_qcom_probe()
845 	dwc3_qcom_interconnect_exit(qcom);  in dwc3_qcom_probe()
852 	for (i = qcom->num_clocks - 1; i >= 0; i--) {  in dwc3_qcom_probe()
853 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_probe()
854 		clk_put(qcom->clks[i]);  in dwc3_qcom_probe()
857 	reset_control_assert(qcom->resets);  in dwc3_qcom_probe()
864 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_remove()  local
870 	for (i = qcom->num_clocks - 1; i >= 0; i--) {  in dwc3_qcom_remove()
871 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_remove()
872 		clk_put(qcom->clks[i]);  in dwc3_qcom_remove()
874 	qcom->num_clocks = 0;  in dwc3_qcom_remove()
876 	dwc3_qcom_interconnect_exit(qcom);  in dwc3_qcom_remove()
877 	reset_control_assert(qcom->resets);  in dwc3_qcom_remove()
887 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_pm_suspend()  local
892 	ret = dwc3_qcom_suspend(qcom, wakeup);  in dwc3_qcom_pm_suspend()
894 		qcom->pm_suspended = true;  in dwc3_qcom_pm_suspend()
901 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_pm_resume()  local
905 	ret = dwc3_qcom_resume(qcom, wakeup);  in dwc3_qcom_pm_resume()
907 		qcom->pm_suspended = false;  in dwc3_qcom_pm_resume()
914 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_runtime_suspend()  local
916 	return dwc3_qcom_suspend(qcom, true);  in dwc3_qcom_runtime_suspend()
921 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_runtime_resume()  local
923 	return dwc3_qcom_resume(qcom, true);  in dwc3_qcom_runtime_resume()
933 	{ .compatible = "qcom,dwc3" },
934 	{ .compatible = "qcom,msm8996-dwc3" },
935 	{ .compatible = "qcom,msm8998-dwc3" },
936 	{ .compatible = "qcom,sdm845-dwc3" },
977 		.name	= "dwc3-qcom",
987 MODULE_DESCRIPTION("DesignWare DWC3 QCOM Glue Driver");