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 * Redistribution and use in source and binary forms, with or without
 9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions, and the following disclaimer,
13 *    without modification.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 *    notice, this list of conditions and the following disclaimer in the
16 *    documentation and/or other materials provided with the distribution.
17 * 3. The names of the above-listed copyright holders may not be used
18 *    to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * ALTERNATIVELY, this software may be distributed under the terms of the
22 * GNU General Public License ("GPL") version 2, as published by the Free
23 * Software Foundation.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
26 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
27 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
29 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
30 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
31 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
32 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
33 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
34 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
36 */
37
38#include <linux/platform_device.h>
39
40#include "core.h"
41
42int dwc3_host_init(struct dwc3 *dwc)
43{
44	struct platform_device	*xhci;
45	int			ret;
46
47	xhci = platform_device_alloc("xhci-hcd", -1);
48	if (!xhci) {
49		dev_err(dwc->dev, "couldn't allocate xHCI device\n");
50		ret = -ENOMEM;
51		goto err0;
52	}
53
54	dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
55
56	xhci->dev.parent	= dwc->dev;
57	xhci->dev.dma_mask	= dwc->dev->dma_mask;
58	xhci->dev.dma_parms	= dwc->dev->dma_parms;
59
60	dwc->xhci = xhci;
61
62	ret = platform_device_add_resources(xhci, dwc->xhci_resources,
63						DWC3_XHCI_RESOURCES_NUM);
64	if (ret) {
65		dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
66		goto err1;
67	}
68
69	ret = platform_device_add(xhci);
70	if (ret) {
71		dev_err(dwc->dev, "failed to register xHCI device\n");
72		goto err1;
73	}
74
75	return 0;
76
77err1:
78	platform_device_put(xhci);
79
80err0:
81	return ret;
82}
83
84void dwc3_host_exit(struct dwc3 *dwc)
85{
86	platform_device_unregister(dwc->xhci);
87}