2 * host.c - DesignWare USB3 DRD Controller Host Glue
4 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
6 * Authors: Felipe Balbi <balbi@ti.com>,
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 of
10 * the License as published by the Free Software Foundation.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
18 #include <linux/platform_device.h>
22 int dwc3_host_init(struct dwc3 *dwc)
24 struct property_entry props[2];
25 struct platform_device *xhci;
28 xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
30 dev_err(dwc->dev, "couldn't allocate xHCI device\n");
34 dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
36 xhci->dev.parent = dwc->dev;
37 xhci->dev.dma_mask = dwc->dev->dma_mask;
38 xhci->dev.dma_parms = dwc->dev->dma_parms;
42 ret = platform_device_add_resources(xhci, dwc->xhci_resources,
43 DWC3_XHCI_RESOURCES_NUM);
45 dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
49 memset(props, 0, sizeof(struct property_entry) * ARRAY_SIZE(props));
51 if (dwc->usb3_lpm_capable) {
52 props[0].name = "usb3-lpm-capable";
53 ret = platform_device_add_properties(xhci, props);
55 dev_err(dwc->dev, "failed to add properties to xHCI\n");
60 phy_create_lookup(dwc->usb2_generic_phy, "usb2-phy",
61 dev_name(&xhci->dev));
62 phy_create_lookup(dwc->usb3_generic_phy, "usb3-phy",
63 dev_name(&xhci->dev));
65 ret = platform_device_add(xhci);
67 dev_err(dwc->dev, "failed to register xHCI device\n");
73 phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
74 dev_name(&xhci->dev));
75 phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
76 dev_name(&xhci->dev));
78 platform_device_put(xhci);
82 void dwc3_host_exit(struct dwc3 *dwc)
84 phy_remove_lookup(dwc->usb2_generic_phy, "usb2-phy",
85 dev_name(&dwc->xhci->dev));
86 phy_remove_lookup(dwc->usb3_generic_phy, "usb3-phy",
87 dev_name(&dwc->xhci->dev));
88 platform_device_unregister(dwc->xhci);