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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 return -ENOMEM;
33 }
34
35 dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
36
37 xhci->dev.parent = dwc->dev;
38 xhci->dev.dma_mask = dwc->dev->dma_mask;
39 xhci->dev.dma_parms = dwc->dev->dma_parms;
40
41 dwc->xhci = xhci;
42
43 ret = platform_device_add_resources(xhci, dwc->xhci_resources,
44 DWC3_XHCI_RESOURCES_NUM);
45 if (ret) {
46 dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
47 goto err1;
48 }
49
50 memset(&pdata, 0, sizeof(pdata));
51
52 pdata.usb3_lpm_capable = dwc->usb3_lpm_capable;
53
54 ret = platform_device_add_data(xhci, &pdata, sizeof(pdata));
55 if (ret) {
56 dev_err(dwc->dev, "couldn't add platform data to xHCI device\n");
57 goto err1;
58 }
59
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));
64
65 ret = platform_device_add(xhci);
66 if (ret) {
67 dev_err(dwc->dev, "failed to register xHCI device\n");
68 goto err2;
69 }
70
71 return 0;
72err2:
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));
77err1:
78 platform_device_put(xhci);
79 return ret;
80}
81
82void dwc3_host_exit(struct dwc3 *dwc)
83{
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);
89}
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}