116 static void dwc3_qcom_vbus_overrride_enable(struct dwc3_qcom *qcom, bool enable)  in dwc3_qcom_vbus_overrride_enable()  argument
119 		dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL,  in dwc3_qcom_vbus_overrride_enable()
121 		dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_HS_PHY_CTRL,  in dwc3_qcom_vbus_overrride_enable()
124 		dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_SS_PHY_CTRL,  in dwc3_qcom_vbus_overrride_enable()
126 		dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_HS_PHY_CTRL,  in dwc3_qcom_vbus_overrride_enable()
134 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, vbus_nb);  in dwc3_qcom_vbus_notifier()  local
137 	dwc3_qcom_vbus_overrride_enable(qcom, event);  in dwc3_qcom_vbus_notifier()
138 	qcom->mode = event ? USB_DR_MODE_PERIPHERAL : USB_DR_MODE_HOST;  in dwc3_qcom_vbus_notifier()
146 	struct dwc3_qcom *qcom = container_of(nb, struct dwc3_qcom, host_nb);  in dwc3_qcom_host_notifier()  local
149 	dwc3_qcom_vbus_overrride_enable(qcom, !event);  in dwc3_qcom_host_notifier()
150 	qcom->mode = event ? USB_DR_MODE_HOST : USB_DR_MODE_PERIPHERAL;  in dwc3_qcom_host_notifier()
155 static int dwc3_qcom_register_extcon(struct dwc3_qcom *qcom)  in dwc3_qcom_register_extcon()  argument
157 	struct device		*dev = qcom->dev;  in dwc3_qcom_register_extcon()
164 	qcom->edev = extcon_get_edev_by_phandle(dev, 0);  in dwc3_qcom_register_extcon()
165 	if (IS_ERR(qcom->edev))  in dwc3_qcom_register_extcon()
166 		return PTR_ERR(qcom->edev);  in dwc3_qcom_register_extcon()
168 	qcom->vbus_nb.notifier_call = dwc3_qcom_vbus_notifier;  in dwc3_qcom_register_extcon()
170 	qcom->host_edev = extcon_get_edev_by_phandle(dev, 1);  in dwc3_qcom_register_extcon()
171 	if (IS_ERR(qcom->host_edev))  in dwc3_qcom_register_extcon()
172 		qcom->host_edev = NULL;  in dwc3_qcom_register_extcon()
174 	ret = devm_extcon_register_notifier(dev, qcom->edev, EXTCON_USB,  in dwc3_qcom_register_extcon()
175 					    &qcom->vbus_nb);  in dwc3_qcom_register_extcon()
181 	if (qcom->host_edev)  in dwc3_qcom_register_extcon()
182 		host_edev = qcom->host_edev;  in dwc3_qcom_register_extcon()
184 		host_edev = qcom->edev;  in dwc3_qcom_register_extcon()
186 	qcom->host_nb.notifier_call = dwc3_qcom_host_notifier;  in dwc3_qcom_register_extcon()
188 					    &qcom->host_nb);  in dwc3_qcom_register_extcon()
195 	if (extcon_get_state(qcom->edev, EXTCON_USB) ||  in dwc3_qcom_register_extcon()
197 		dwc3_qcom_vbus_notifier(&qcom->vbus_nb, true, qcom->edev);  in dwc3_qcom_register_extcon()
199 		dwc3_qcom_vbus_notifier(&qcom->vbus_nb, false, qcom->edev);  in dwc3_qcom_register_extcon()
204 static int dwc3_qcom_interconnect_enable(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_enable()  argument
208 	ret = icc_enable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_enable()
212 	ret = icc_enable(qcom->icc_path_apps);  in dwc3_qcom_interconnect_enable()
214 		icc_disable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_enable()
219 static int dwc3_qcom_interconnect_disable(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_disable()  argument
223 	ret = icc_disable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_disable()
227 	ret = icc_disable(qcom->icc_path_apps);  in dwc3_qcom_interconnect_disable()
229 		icc_enable(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_disable()
237  * @qcom:			Pointer to the concerned usb core.
240 static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_init()  argument
242 	struct device *dev = qcom->dev;  in dwc3_qcom_interconnect_init()
245 	qcom->icc_path_ddr = of_icc_get(dev, "usb-ddr");  in dwc3_qcom_interconnect_init()
246 	if (IS_ERR(qcom->icc_path_ddr)) {  in dwc3_qcom_interconnect_init()
248 			PTR_ERR(qcom->icc_path_ddr));  in dwc3_qcom_interconnect_init()
249 		return PTR_ERR(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_init()
252 	qcom->icc_path_apps = of_icc_get(dev, "apps-usb");  in dwc3_qcom_interconnect_init()
253 	if (IS_ERR(qcom->icc_path_apps)) {  in dwc3_qcom_interconnect_init()
255 				PTR_ERR(qcom->icc_path_apps));  in dwc3_qcom_interconnect_init()
256 		return PTR_ERR(qcom->icc_path_apps);  in dwc3_qcom_interconnect_init()
259 	if (usb_get_maximum_speed(&qcom->dwc3->dev) >= USB_SPEED_SUPER ||  in dwc3_qcom_interconnect_init()
260 			usb_get_maximum_speed(&qcom->dwc3->dev) == USB_SPEED_UNKNOWN)  in dwc3_qcom_interconnect_init()
261 		ret = icc_set_bw(qcom->icc_path_ddr,  in dwc3_qcom_interconnect_init()
264 		ret = icc_set_bw(qcom->icc_path_ddr,  in dwc3_qcom_interconnect_init()
272 	ret = icc_set_bw(qcom->icc_path_apps,  in dwc3_qcom_interconnect_init()
284  * @qcom:			Pointer to the concerned usb core.
288 static void dwc3_qcom_interconnect_exit(struct dwc3_qcom *qcom)  in dwc3_qcom_interconnect_exit()  argument
290 	icc_put(qcom->icc_path_ddr);  in dwc3_qcom_interconnect_exit()
291 	icc_put(qcom->icc_path_apps);  in dwc3_qcom_interconnect_exit()
294 static void dwc3_qcom_disable_interrupts(struct dwc3_qcom *qcom)  in dwc3_qcom_disable_interrupts()  argument
296 	if (qcom->hs_phy_irq) {  in dwc3_qcom_disable_interrupts()
297 		disable_irq_wake(qcom->hs_phy_irq);  in dwc3_qcom_disable_interrupts()
298 		disable_irq_nosync(qcom->hs_phy_irq);  in dwc3_qcom_disable_interrupts()
301 	if (qcom->dp_hs_phy_irq) {  in dwc3_qcom_disable_interrupts()
302 		disable_irq_wake(qcom->dp_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
303 		disable_irq_nosync(qcom->dp_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
306 	if (qcom->dm_hs_phy_irq) {  in dwc3_qcom_disable_interrupts()
307 		disable_irq_wake(qcom->dm_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
308 		disable_irq_nosync(qcom->dm_hs_phy_irq);  in dwc3_qcom_disable_interrupts()
311 	if (qcom->ss_phy_irq) {  in dwc3_qcom_disable_interrupts()
312 		disable_irq_wake(qcom->ss_phy_irq);  in dwc3_qcom_disable_interrupts()
313 		disable_irq_nosync(qcom->ss_phy_irq);  in dwc3_qcom_disable_interrupts()
317 static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom)  in dwc3_qcom_enable_interrupts()  argument
319 	if (qcom->hs_phy_irq) {  in dwc3_qcom_enable_interrupts()
320 		enable_irq(qcom->hs_phy_irq);  in dwc3_qcom_enable_interrupts()
321 		enable_irq_wake(qcom->hs_phy_irq);  in dwc3_qcom_enable_interrupts()
324 	if (qcom->dp_hs_phy_irq) {  in dwc3_qcom_enable_interrupts()
325 		enable_irq(qcom->dp_hs_phy_irq);  in dwc3_qcom_enable_interrupts()
326 		enable_irq_wake(qcom->dp_hs_phy_irq);  in dwc3_qcom_enable_interrupts()
329 	if (qcom->dm_hs_phy_irq) {  in dwc3_qcom_enable_interrupts()
330 		enable_irq(qcom->dm_hs_phy_irq);  in dwc3_qcom_enable_interrupts()
331 		enable_irq_wake(qcom->dm_hs_phy_irq);  in dwc3_qcom_enable_interrupts()
334 	if (qcom->ss_phy_irq) {  in dwc3_qcom_enable_interrupts()
335 		enable_irq(qcom->ss_phy_irq);  in dwc3_qcom_enable_interrupts()
336 		enable_irq_wake(qcom->ss_phy_irq);  in dwc3_qcom_enable_interrupts()
340 static int dwc3_qcom_suspend(struct dwc3_qcom *qcom)  in dwc3_qcom_suspend()  argument
345 	if (qcom->is_suspended)  in dwc3_qcom_suspend()
348 	val = readl(qcom->qscratch_base + PWR_EVNT_IRQ_STAT_REG);  in dwc3_qcom_suspend()
350 		dev_err(qcom->dev, "HS-PHY not in L2\n");  in dwc3_qcom_suspend()
352 	for (i = qcom->num_clocks - 1; i >= 0; i--)  in dwc3_qcom_suspend()
353 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_suspend()
355 	ret = dwc3_qcom_interconnect_disable(qcom);  in dwc3_qcom_suspend()
357 		dev_warn(qcom->dev, "failed to disable interconnect: %d\n", ret);  in dwc3_qcom_suspend()
359 	qcom->is_suspended = true;  in dwc3_qcom_suspend()
360 	dwc3_qcom_enable_interrupts(qcom);  in dwc3_qcom_suspend()
365 static int dwc3_qcom_resume(struct dwc3_qcom *qcom)  in dwc3_qcom_resume()  argument
370 	if (!qcom->is_suspended)  in dwc3_qcom_resume()
373 	dwc3_qcom_disable_interrupts(qcom);  in dwc3_qcom_resume()
375 	for (i = 0; i < qcom->num_clocks; i++) {  in dwc3_qcom_resume()
376 		ret = clk_prepare_enable(qcom->clks[i]);  in dwc3_qcom_resume()
379 				clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_resume()
384 	ret = dwc3_qcom_interconnect_enable(qcom);  in dwc3_qcom_resume()
386 		dev_warn(qcom->dev, "failed to enable interconnect: %d\n", ret);  in dwc3_qcom_resume()
389 	dwc3_qcom_setbits(qcom->qscratch_base, PWR_EVNT_IRQ_STAT_REG,  in dwc3_qcom_resume()
392 	qcom->is_suspended = false;  in dwc3_qcom_resume()
399 	struct dwc3_qcom *qcom = data;  in qcom_dwc3_resume_irq()  local
400 	struct dwc3	*dwc = platform_get_drvdata(qcom->dwc3);  in qcom_dwc3_resume_irq()
403 	if (qcom->pm_suspended)  in qcom_dwc3_resume_irq()
412 static void dwc3_qcom_select_utmi_clk(struct dwc3_qcom *qcom)  in dwc3_qcom_select_utmi_clk()  argument
415 	dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
420 	dwc3_qcom_setbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
425 	dwc3_qcom_clrbits(qcom->qscratch_base, QSCRATCH_GENERAL_CFG,  in dwc3_qcom_select_utmi_clk()
445 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_setup_irq()  local
446 	const struct dwc3_acpi_pdata *pdata = qcom->acpi_pdata;  in dwc3_qcom_setup_irq()
455 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
458 					"qcom_dwc3 HS", qcom);  in dwc3_qcom_setup_irq()
460 			dev_err(qcom->dev, "hs_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
463 		qcom->hs_phy_irq = irq;  in dwc3_qcom_setup_irq()
470 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
473 					"qcom_dwc3 DP_HS", qcom);  in dwc3_qcom_setup_irq()
475 			dev_err(qcom->dev, "dp_hs_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
478 		qcom->dp_hs_phy_irq = irq;  in dwc3_qcom_setup_irq()
485 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
488 					"qcom_dwc3 DM_HS", qcom);  in dwc3_qcom_setup_irq()
490 			dev_err(qcom->dev, "dm_hs_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
493 		qcom->dm_hs_phy_irq = irq;  in dwc3_qcom_setup_irq()
500 		ret = devm_request_threaded_irq(qcom->dev, irq, NULL,  in dwc3_qcom_setup_irq()
503 					"qcom_dwc3 SS", qcom);  in dwc3_qcom_setup_irq()
505 			dev_err(qcom->dev, "ss_phy_irq failed: %d\n", ret);  in dwc3_qcom_setup_irq()
508 		qcom->ss_phy_irq = irq;  in dwc3_qcom_setup_irq()
514 static int dwc3_qcom_clk_init(struct dwc3_qcom *qcom, int count)  in dwc3_qcom_clk_init()  argument
516 	struct device		*dev = qcom->dev;  in dwc3_qcom_clk_init()
526 	qcom->num_clocks = count;  in dwc3_qcom_clk_init()
528 	qcom->clks = devm_kcalloc(dev, qcom->num_clocks,  in dwc3_qcom_clk_init()
530 	if (!qcom->clks)  in dwc3_qcom_clk_init()
533 	for (i = 0; i < qcom->num_clocks; i++) {  in dwc3_qcom_clk_init()
540 				clk_put(qcom->clks[i]);  in dwc3_qcom_clk_init()
547 				clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_clk_init()
548 				clk_put(qcom->clks[i]);  in dwc3_qcom_clk_init()
555 		qcom->clks[i] = clk;  in dwc3_qcom_clk_init()
568 	struct dwc3_qcom	*qcom = platform_get_drvdata(pdev);  in dwc3_qcom_acpi_register_core()  local
574 	qcom->dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);  in dwc3_qcom_acpi_register_core()
575 	if (!qcom->dwc3)  in dwc3_qcom_acpi_register_core()
578 	qcom->dwc3->dev.parent = dev;  in dwc3_qcom_acpi_register_core()
579 	qcom->dwc3->dev.type = dev->type;  in dwc3_qcom_acpi_register_core()
580 	qcom->dwc3->dev.dma_mask = dev->dma_mask;  in dwc3_qcom_acpi_register_core()
581 	qcom->dwc3->dev.dma_parms = dev->dma_parms;  in dwc3_qcom_acpi_register_core()
582 	qcom->dwc3->dev.coherent_dma_mask = dev->coherent_dma_mask;  in dwc3_qcom_acpi_register_core()
598 		qcom->acpi_pdata->dwc3_core_base_size;  in dwc3_qcom_acpi_register_core()
604 	ret = platform_device_add_resources(qcom->dwc3, child_res, 2);  in dwc3_qcom_acpi_register_core()
610 	ret = platform_device_add_properties(qcom->dwc3,  in dwc3_qcom_acpi_register_core()
617 	ret = platform_device_add(qcom->dwc3);  in dwc3_qcom_acpi_register_core()
628 	struct dwc3_qcom	*qcom = platform_get_drvdata(pdev);  in dwc3_qcom_of_register_core()  local
645 	qcom->dwc3 = of_find_device_by_node(dwc3_np);  in dwc3_qcom_of_register_core()
646 	if (!qcom->dwc3) {  in dwc3_qcom_of_register_core()
658 	struct dwc3_qcom	*qcom;  in dwc3_qcom_probe()  local
663 	qcom = devm_kzalloc(&pdev->dev, sizeof(*qcom), GFP_KERNEL);  in dwc3_qcom_probe()
664 	if (!qcom)  in dwc3_qcom_probe()
667 	platform_set_drvdata(pdev, qcom);  in dwc3_qcom_probe()
668 	qcom->dev = &pdev->dev;  in dwc3_qcom_probe()
671 		qcom->acpi_pdata = acpi_device_get_match_data(dev);  in dwc3_qcom_probe()
672 		if (!qcom->acpi_pdata) {  in dwc3_qcom_probe()
678 	qcom->resets = devm_reset_control_array_get_optional_exclusive(dev);  in dwc3_qcom_probe()
679 	if (IS_ERR(qcom->resets)) {  in dwc3_qcom_probe()
680 		ret = PTR_ERR(qcom->resets);  in dwc3_qcom_probe()
685 	ret = reset_control_assert(qcom->resets);  in dwc3_qcom_probe()
693 	ret = reset_control_deassert(qcom->resets);  in dwc3_qcom_probe()
699 	ret = dwc3_qcom_clk_init(qcom, of_clk_get_parent_count(np));  in dwc3_qcom_probe()
715 			qcom->acpi_pdata->qscratch_base_offset;  in dwc3_qcom_probe()
717 			qcom->acpi_pdata->qscratch_base_size;  in dwc3_qcom_probe()
720 	qcom->qscratch_base = devm_ioremap_resource(dev, parent_res);  in dwc3_qcom_probe()
721 	if (IS_ERR(qcom->qscratch_base)) {  in dwc3_qcom_probe()
723 		ret = PTR_ERR(qcom->qscratch_base);  in dwc3_qcom_probe()
738 				"qcom,select-utmi-as-pipe-clk");  in dwc3_qcom_probe()
740 		dwc3_qcom_select_utmi_clk(qcom);  in dwc3_qcom_probe()
752 	ret = dwc3_qcom_interconnect_init(qcom);  in dwc3_qcom_probe()
756 	qcom->mode = usb_get_dr_mode(&qcom->dwc3->dev);  in dwc3_qcom_probe()
759 	if (qcom->mode == USB_DR_MODE_PERIPHERAL)  in dwc3_qcom_probe()
760 		dwc3_qcom_vbus_overrride_enable(qcom, true);  in dwc3_qcom_probe()
763 	ret = dwc3_qcom_register_extcon(qcom);  in dwc3_qcom_probe()
768 	qcom->is_suspended = false;  in dwc3_qcom_probe()
776 	dwc3_qcom_interconnect_exit(qcom);  in dwc3_qcom_probe()
783 	for (i = qcom->num_clocks - 1; i >= 0; i--) {  in dwc3_qcom_probe()
784 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_probe()
785 		clk_put(qcom->clks[i]);  in dwc3_qcom_probe()
788 	reset_control_assert(qcom->resets);  in dwc3_qcom_probe()
795 	struct dwc3_qcom *qcom = platform_get_drvdata(pdev);  in dwc3_qcom_remove()  local
801 	for (i = qcom->num_clocks - 1; i >= 0; i--) {  in dwc3_qcom_remove()
802 		clk_disable_unprepare(qcom->clks[i]);  in dwc3_qcom_remove()
803 		clk_put(qcom->clks[i]);  in dwc3_qcom_remove()
805 	qcom->num_clocks = 0;  in dwc3_qcom_remove()
807 	dwc3_qcom_interconnect_exit(qcom);  in dwc3_qcom_remove()
808 	reset_control_assert(qcom->resets);  in dwc3_qcom_remove()
818 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_pm_suspend()  local
821 	ret = dwc3_qcom_suspend(qcom);  in dwc3_qcom_pm_suspend()
823 		qcom->pm_suspended = true;  in dwc3_qcom_pm_suspend()
830 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_pm_resume()  local
833 	ret = dwc3_qcom_resume(qcom);  in dwc3_qcom_pm_resume()
835 		qcom->pm_suspended = false;  in dwc3_qcom_pm_resume()
842 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_runtime_suspend()  local
844 	return dwc3_qcom_suspend(qcom);  in dwc3_qcom_runtime_suspend()
849 	struct dwc3_qcom *qcom = dev_get_drvdata(dev);  in dwc3_qcom_runtime_resume()  local
851 	return dwc3_qcom_resume(qcom);  in dwc3_qcom_runtime_resume()
861 	{ .compatible = "qcom,dwc3" },
862 	{ .compatible = "qcom,msm8996-dwc3" },
863 	{ .compatible = "qcom,msm8998-dwc3" },
864 	{ .compatible = "qcom,sdm845-dwc3" },
891 		.name	= "dwc3-qcom",
901 MODULE_DESCRIPTION("DesignWare DWC3 QCOM Glue Driver");