1/**
2 * host.c - DesignWare USB3 DRD Controller Host Glue
3 *
4 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
5 *
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 *
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.
11 *
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.
16 */
17
18#include <linux/platform_device.h>
19#include <linux/usb/xhci_pdriver.h>
20
21#include "core.h"
22
23int dwc3_host_init(struct dwc3 *dwc)
24{
25	struct platform_device	*xhci;
26	struct usb_xhci_pdata	pdata;
27	int			ret;
28
29	xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
30	if (!xhci) {
31		dev_err(dwc->dev, "couldn't allocate xHCI device\n");
32		ret = -ENOMEM;
33		goto err0;
34	}
35
36	dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
37
38	xhci->dev.parent	= dwc->dev;
39	xhci->dev.dma_mask	= dwc->dev->dma_mask;
40	xhci->dev.dma_parms	= dwc->dev->dma_parms;
41
42	dwc->xhci = xhci;
43
44	ret = platform_device_add_resources(xhci, dwc->xhci_resources,
45						DWC3_XHCI_RESOURCES_NUM);
46	if (ret) {
47		dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
48		goto err1;
49	}
50
51	memset(&pdata, 0, sizeof(pdata));
52
53#ifdef CONFIG_DWC3_HOST_USB3_LPM_ENABLE
54	pdata.usb3_lpm_capable = 1;
55#endif
56
57	ret = platform_device_add_data(xhci, &pdata, sizeof(pdata));
58	if (ret) {
59		dev_err(dwc->dev, "couldn't add platform data to xHCI device\n");
60		goto err1;
61	}
62
63	ret = platform_device_add(xhci);
64	if (ret) {
65		dev_err(dwc->dev, "failed to register xHCI device\n");
66		goto err1;
67	}
68
69	return 0;
70
71err1:
72	platform_device_put(xhci);
73
74err0:
75	return ret;
76}
77
78void dwc3_host_exit(struct dwc3 *dwc)
79{
80	platform_device_unregister(dwc->xhci);
81}
82