1 // SPDX-License-Identifier: GPL-2.0
3  * host.c - DesignWare USB3 DRD Controller Host Glue
5  * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com
16 #include "../host/xhci-port.h"
17 #include "../host/xhci-ext-caps.h"
18 #include "../host/xhci-caps.h"
19 #include "../host/xhci-plat.h"
26  * dwc3_power_off_all_roothub_ports - Power off all Root hub ports
39 	if (dwc->xhci_resources[0].start) {  in dwc3_power_off_all_roothub_ports()
40 		xhci_regs = ioremap(dwc->xhci_resources[0].start, DWC3_XHCI_REGS_END);  in dwc3_power_off_all_roothub_ports()
42 			dev_err(dwc->dev, "Failed to ioremap xhci_regs\n");  in dwc3_power_off_all_roothub_ports()
51 			offset = op_regs_base + XHCI_PORTSC_BASE + 0x10 * (i - 1);  in dwc3_power_off_all_roothub_ports()
59 		dev_err(dwc->dev, "xhci base reg invalid\n");  in dwc3_power_off_all_roothub_ports()
71 	pdev = to_platform_device(hcd->self.controller);  in dwc3_xhci_plat_start()
72 	dwc = dev_get_drvdata(pdev->dev.parent);  in dwc3_xhci_plat_start()
84 	struct platform_device *pdev = to_platform_device(dwc->dev);  in dwc3_host_fill_xhci_irq_res()
85 	struct device_node *np = dev_of_node(&pdev->dev);  in dwc3_host_fill_xhci_irq_res()
87 	dwc->xhci_resources[1].start = irq;  in dwc3_host_fill_xhci_irq_res()
88 	dwc->xhci_resources[1].end = irq;  in dwc3_host_fill_xhci_irq_res()
89 	dwc->xhci_resources[1].flags = IORESOURCE_IRQ | irq_get_trigger_type(irq);  in dwc3_host_fill_xhci_irq_res()
91 		dwc->xhci_resources[1].name = of_node_full_name(pdev->dev.of_node);  in dwc3_host_fill_xhci_irq_res()
93 		dwc->xhci_resources[1].name = name;  in dwc3_host_fill_xhci_irq_res()
98 	struct platform_device	*dwc3_pdev = to_platform_device(dwc->dev);  in dwc3_host_get_irq()
107 	if (irq == -EPROBE_DEFER)  in dwc3_host_get_irq()
116 	if (irq == -EPROBE_DEFER)  in dwc3_host_get_irq()
144 	xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);  in dwc3_host_init()
146 		dev_err(dwc->dev, "couldn't allocate xHCI device\n");  in dwc3_host_init()
147 		return -ENOMEM;  in dwc3_host_init()
150 	xhci->dev.parent	= dwc->dev;  in dwc3_host_init()
152 	dwc->xhci = xhci;  in dwc3_host_init()
154 	ret = platform_device_add_resources(xhci, dwc->xhci_resources,  in dwc3_host_init()
157 		dev_err(dwc->dev, "couldn't add resources to xHCI device\n");  in dwc3_host_init()
163 	props[prop_idx++] = PROPERTY_ENTRY_BOOL("xhci-sg-trb-cache-size-quirk");  in dwc3_host_init()
165 	props[prop_idx++] = PROPERTY_ENTRY_BOOL("write-64-hi-lo-quirk");  in dwc3_host_init()
167 	if (dwc->usb3_lpm_capable)  in dwc3_host_init()
168 		props[prop_idx++] = PROPERTY_ENTRY_BOOL("usb3-lpm-capable");  in dwc3_host_init()
170 	if (dwc->usb2_lpm_disable)  in dwc3_host_init()
171 		props[prop_idx++] = PROPERTY_ENTRY_BOOL("usb2-lpm-disable");  in dwc3_host_init()
175 	 * where Port Disable command doesn't work.  in dwc3_host_init()
177 	 * The suggested workaround is that we avoid Port Disable  in dwc3_host_init()
183 		props[prop_idx++] = PROPERTY_ENTRY_BOOL("quirk-broken-port-ped");  in dwc3_host_init()
186 		ret = device_create_managed_software_node(&xhci->dev, props, NULL);  in dwc3_host_init()
188 			dev_err(dwc->dev, "failed to add properties to xHCI\n");  in dwc3_host_init()
200 		dev_err(dwc->dev, "failed to register xHCI device\n");  in dwc3_host_init()
204 	if (dwc->sys_wakeup) {  in dwc3_host_init()
206 		device_wakeup_enable(dwc->sysdev);  in dwc3_host_init()
209 		device_init_wakeup(&xhci->dev, true);  in dwc3_host_init()
220 	if (dwc->sys_wakeup)  in dwc3_host_exit()
221 		device_init_wakeup(&dwc->xhci->dev, false);  in dwc3_host_exit()
224 	platform_device_unregister(dwc->xhci);  in dwc3_host_exit()
225 	dwc->xhci = NULL;  in dwc3_host_exit()