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
20#include "core.h"
21
22int dwc3_host_init(struct dwc3 *dwc)
23{
24	struct platform_device	*xhci;
25	int			ret;
26
27	xhci = platform_device_alloc("xhci-hcd", PLATFORM_DEVID_AUTO);
28	if (!xhci) {
29		dev_err(dwc->dev, "couldn't allocate xHCI device\n");
30		ret = -ENOMEM;
31		goto err0;
32	}
33
34	dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
35
36	xhci->dev.parent	= dwc->dev;
37	xhci->dev.dma_mask	= dwc->dev->dma_mask;
38	xhci->dev.dma_parms	= dwc->dev->dma_parms;
39
40	dwc->xhci = xhci;
41
42	ret = platform_device_add_resources(xhci, dwc->xhci_resources,
43						DWC3_XHCI_RESOURCES_NUM);
44	if (ret) {
45		dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
46		goto err1;
47	}
48
49	ret = platform_device_add(xhci);
50	if (ret) {
51		dev_err(dwc->dev, "failed to register xHCI device\n");
52		goto err1;
53	}
54
55	return 0;
56
57err1:
58	platform_device_put(xhci);
59
60err0:
61	return ret;
62}
63
64void dwc3_host_exit(struct dwc3 *dwc)
65{
66	platform_device_unregister(dwc->xhci);
67}