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Diffstat (limited to 'arch/sh/kernel/cpu/bus.c')
-rw-r--r--arch/sh/kernel/cpu/bus.c197
1 files changed, 0 insertions, 197 deletions
diff --git a/arch/sh/kernel/cpu/bus.c b/arch/sh/kernel/cpu/bus.c
deleted file mode 100644
index fc6c4bd40c65..000000000000
--- a/arch/sh/kernel/cpu/bus.c
+++ /dev/null
@@ -1,197 +0,0 @@
1/*
2 * arch/sh/kernel/cpu/bus.c
3 *
4 * Virtual bus for SuperH.
5 *
6 * Copyright (C) 2004 Paul Mundt
7 *
8 * Shamelessly cloned from arch/arm/mach-omap/bus.c, which was written
9 * by:
10 *
11 * Copyright (C) 2003 - 2004 Nokia Corporation
12 * Written by Tony Lindgren <tony@atomide.com>
13 * Portions of code based on sa1111.c.
14 *
15 * This program is free software; you can redistribute it and/or modify it
16 * under the terms of the GNU General Public License as published by the
17 * Free Software Foundation; either version 2 of the License, or (at your
18 * option) any later version.
19 */
20#include <linux/kernel.h>
21#include <linux/device.h>
22#include <linux/init.h>
23#include <linux/module.h>
24#include <asm/bus-sh.h>
25
26static int sh_bus_match(struct device *dev, struct device_driver *drv)
27{
28 struct sh_driver *shdrv = to_sh_driver(drv);
29 struct sh_dev *shdev = to_sh_dev(dev);
30
31 return shdev->dev_id == shdrv->dev_id;
32}
33
34static int sh_bus_suspend(struct device *dev, pm_message_t state)
35{
36 struct sh_dev *shdev = to_sh_dev(dev);
37 struct sh_driver *shdrv = to_sh_driver(dev->driver);
38
39 if (shdrv && shdrv->suspend)
40 return shdrv->suspend(shdev, state);
41
42 return 0;
43}
44
45static int sh_bus_resume(struct device *dev)
46{
47 struct sh_dev *shdev = to_sh_dev(dev);
48 struct sh_driver *shdrv = to_sh_driver(dev->driver);
49
50 if (shdrv && shdrv->resume)
51 return shdrv->resume(shdev);
52
53 return 0;
54}
55
56static int sh_device_probe(struct device *dev)
57{
58 struct sh_dev *shdev = to_sh_dev(dev);
59 struct sh_driver *shdrv = to_sh_driver(dev->driver);
60
61 if (shdrv && shdrv->probe)
62 return shdrv->probe(shdev);
63
64 return -ENODEV;
65}
66
67static int sh_device_remove(struct device *dev)
68{
69 struct sh_dev *shdev = to_sh_dev(dev);
70 struct sh_driver *shdrv = to_sh_driver(dev->driver);
71
72 if (shdrv && shdrv->remove)
73 return shdrv->remove(shdev);
74
75 return 0;
76}
77
78static struct device sh_bus_devices[SH_NR_BUSES] = {
79 {
80 .bus_id = SH_BUS_NAME_VIRT,
81 },
82};
83
84struct bus_type sh_bus_types[SH_NR_BUSES] = {
85 {
86 .name = SH_BUS_NAME_VIRT,
87 .match = sh_bus_match,
88 .probe = sh_bus_probe,
89 .remove = sh_bus_remove,
90 .suspend = sh_bus_suspend,
91 .resume = sh_bus_resume,
92 },
93};
94
95int sh_device_register(struct sh_dev *dev)
96{
97 if (!dev)
98 return -EINVAL;
99
100 if (dev->bus_id < 0 || dev->bus_id >= SH_NR_BUSES) {
101 printk(KERN_ERR "%s: bus_id invalid: %s bus: %d\n",
102 __FUNCTION__, dev->name, dev->bus_id);
103 return -EINVAL;
104 }
105
106 dev->dev.parent = &sh_bus_devices[dev->bus_id];
107 dev->dev.bus = &sh_bus_types[dev->bus_id];
108
109 /* This is needed for USB OHCI to work */
110 if (dev->dma_mask)
111 dev->dev.dma_mask = dev->dma_mask;
112 if (dev->coherent_dma_mask)
113 dev->dev.coherent_dma_mask = dev->coherent_dma_mask;
114
115 snprintf(dev->dev.bus_id, BUS_ID_SIZE, "%s%u",
116 dev->name, dev->dev_id);
117
118 printk(KERN_INFO "Registering SH device '%s'. Parent at %s\n",
119 dev->dev.bus_id, dev->dev.parent->bus_id);
120
121 return device_register(&dev->dev);
122}
123
124void sh_device_unregister(struct sh_dev *dev)
125{
126 device_unregister(&dev->dev);
127}
128
129int sh_driver_register(struct sh_driver *drv)
130{
131 if (!drv)
132 return -EINVAL;
133
134 if (drv->bus_id < 0 || drv->bus_id >= SH_NR_BUSES) {
135 printk(KERN_ERR "%s: bus_id invalid: bus: %d device %d\n",
136 __FUNCTION__, drv->bus_id, drv->dev_id);
137 return -EINVAL;
138 }
139
140 drv->drv.bus = &sh_bus_types[drv->bus_id];
141
142 return driver_register(&drv->drv);
143}
144
145void sh_driver_unregister(struct sh_driver *drv)
146{
147 driver_unregister(&drv->drv);
148}
149
150static int __init sh_bus_init(void)
151{
152 int i, ret = 0;
153
154 for (i = 0; i < SH_NR_BUSES; i++) {
155 ret = device_register(&sh_bus_devices[i]);
156 if (ret != 0) {
157 printk(KERN_ERR "Unable to register bus device %s\n",
158 sh_bus_devices[i].bus_id);
159 continue;
160 }
161
162 ret = bus_register(&sh_bus_types[i]);
163 if (ret != 0) {
164 printk(KERN_ERR "Unable to register bus %s\n",
165 sh_bus_types[i].name);
166 device_unregister(&sh_bus_devices[i]);
167 }
168 }
169
170 printk(KERN_INFO "SH Virtual Bus initialized\n");
171
172 return ret;
173}
174
175static void __exit sh_bus_exit(void)
176{
177 int i;
178
179 for (i = 0; i < SH_NR_BUSES; i++) {
180 bus_unregister(&sh_bus_types[i]);
181 device_unregister(&sh_bus_devices[i]);
182 }
183}
184
185module_init(sh_bus_init);
186module_exit(sh_bus_exit);
187
188MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>");
189MODULE_DESCRIPTION("SH Virtual Bus");
190MODULE_LICENSE("GPL");
191
192EXPORT_SYMBOL(sh_bus_types);
193EXPORT_SYMBOL(sh_device_register);
194EXPORT_SYMBOL(sh_device_unregister);
195EXPORT_SYMBOL(sh_driver_register);
196EXPORT_SYMBOL(sh_driver_unregister);
197
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-30 14:55:43 -0500