Merge tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux/fpc-iii.git] / drivers / usb / dwc3 / dwc3-pci.c
blob7d70f44567d2a80fb9b5cf459f36ac0f61dafdf3
1 /**
2 * dwc3-pci.c - PCI Specific glue layer
4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions, and the following disclaimer,
14 * without modification.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The names of the above-listed copyright holders may not be used
19 * to endorse or promote products derived from this software without
20 * specific prior written permission.
22 * ALTERNATIVELY, this software may be distributed under the terms of the
23 * GNU General Public License ("GPL") version 2, as published by the Free
24 * Software Foundation.
26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
27 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
28 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
30 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
31 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
32 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
33 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
34 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
35 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
36 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 #include <linux/kernel.h>
40 #include <linux/module.h>
41 #include <linux/slab.h>
42 #include <linux/pci.h>
43 #include <linux/platform_device.h>
45 #include <linux/usb/otg.h>
46 #include <linux/usb/nop-usb-xceiv.h>
48 #include "core.h"
50 /* FIXME define these in <linux/pci_ids.h> */
51 #define PCI_VENDOR_ID_SYNOPSYS 0x16c3
52 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
54 struct dwc3_pci {
55 struct device *dev;
56 struct platform_device *dwc3;
57 struct platform_device *usb2_phy;
58 struct platform_device *usb3_phy;
61 static int dwc3_pci_register_phys(struct dwc3_pci *glue)
63 struct nop_usb_xceiv_platform_data pdata;
64 struct platform_device *pdev;
65 int ret;
67 memset(&pdata, 0x00, sizeof(pdata));
69 pdev = platform_device_alloc("nop_usb_xceiv", 0);
70 if (!pdev)
71 return -ENOMEM;
73 glue->usb2_phy = pdev;
74 pdata.type = USB_PHY_TYPE_USB2;
76 ret = platform_device_add_data(glue->usb2_phy, &pdata, sizeof(pdata));
77 if (ret)
78 goto err1;
80 pdev = platform_device_alloc("nop_usb_xceiv", 1);
81 if (!pdev) {
82 ret = -ENOMEM;
83 goto err1;
86 glue->usb3_phy = pdev;
87 pdata.type = USB_PHY_TYPE_USB3;
89 ret = platform_device_add_data(glue->usb3_phy, &pdata, sizeof(pdata));
90 if (ret)
91 goto err2;
93 ret = platform_device_add(glue->usb2_phy);
94 if (ret)
95 goto err2;
97 ret = platform_device_add(glue->usb3_phy);
98 if (ret)
99 goto err3;
101 return 0;
103 err3:
104 platform_device_del(glue->usb2_phy);
106 err2:
107 platform_device_put(glue->usb3_phy);
109 err1:
110 platform_device_put(glue->usb2_phy);
112 return ret;
115 static int dwc3_pci_probe(struct pci_dev *pci,
116 const struct pci_device_id *id)
118 struct resource res[2];
119 struct platform_device *dwc3;
120 struct dwc3_pci *glue;
121 int ret = -ENOMEM;
122 struct device *dev = &pci->dev;
124 glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
125 if (!glue) {
126 dev_err(dev, "not enough memory\n");
127 return -ENOMEM;
130 glue->dev = dev;
132 ret = pci_enable_device(pci);
133 if (ret) {
134 dev_err(dev, "failed to enable pci device\n");
135 return -ENODEV;
138 pci_set_power_state(pci, PCI_D0);
139 pci_set_master(pci);
141 ret = dwc3_pci_register_phys(glue);
142 if (ret) {
143 dev_err(dev, "couldn't register PHYs\n");
144 return ret;
147 dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
148 if (!dwc3) {
149 dev_err(dev, "couldn't allocate dwc3 device\n");
150 ret = -ENOMEM;
151 goto err1;
154 memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
156 res[0].start = pci_resource_start(pci, 0);
157 res[0].end = pci_resource_end(pci, 0);
158 res[0].name = "dwc_usb3";
159 res[0].flags = IORESOURCE_MEM;
161 res[1].start = pci->irq;
162 res[1].name = "dwc_usb3";
163 res[1].flags = IORESOURCE_IRQ;
165 ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
166 if (ret) {
167 dev_err(dev, "couldn't add resources to dwc3 device\n");
168 goto err1;
171 pci_set_drvdata(pci, glue);
173 dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
175 dwc3->dev.dma_mask = dev->dma_mask;
176 dwc3->dev.dma_parms = dev->dma_parms;
177 dwc3->dev.parent = dev;
178 glue->dwc3 = dwc3;
180 ret = platform_device_add(dwc3);
181 if (ret) {
182 dev_err(dev, "failed to register dwc3 device\n");
183 goto err3;
186 return 0;
188 err3:
189 pci_set_drvdata(pci, NULL);
190 platform_device_put(dwc3);
191 err1:
192 pci_disable_device(pci);
194 return ret;
197 static void dwc3_pci_remove(struct pci_dev *pci)
199 struct dwc3_pci *glue = pci_get_drvdata(pci);
201 platform_device_unregister(glue->usb2_phy);
202 platform_device_unregister(glue->usb3_phy);
203 platform_device_unregister(glue->dwc3);
204 pci_set_drvdata(pci, NULL);
205 pci_disable_device(pci);
208 static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
210 PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
211 PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
213 { } /* Terminating Entry */
215 MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
217 static struct pci_driver dwc3_pci_driver = {
218 .name = "dwc3-pci",
219 .id_table = dwc3_pci_id_table,
220 .probe = dwc3_pci_probe,
221 .remove = dwc3_pci_remove,
224 MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
225 MODULE_LICENSE("Dual BSD/GPL");
226 MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
228 module_pci_driver(dwc3_pci_driver);