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Benjamin Herrenschmidt7eebde72006-11-11 17:24:59 +11001/*
2 * Copyright (C) 2006 Benjamin Herrenschmidt, IBM Corp.
3 * <benh@kernel.crashing.org>
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
10 */
11
12#include <asm/of_device.h>
13
14/*
15 * The of_platform_bus_type is a bus type used by drivers that do not
16 * attach to a macio or similar bus but still use OF probing
17 * mechanism
18 */
19extern struct bus_type of_platform_bus_type;
20
21/*
22 * An of_platform_driver driver is attached to a basic of_device on
23 * the "platform bus" (of_platform_bus_type)
24 */
25struct of_platform_driver
26{
27 char *name;
28 struct of_device_id *match_table;
29 struct module *owner;
30
31 int (*probe)(struct of_device* dev,
32 const struct of_device_id *match);
33 int (*remove)(struct of_device* dev);
34
35 int (*suspend)(struct of_device* dev, pm_message_t state);
36 int (*resume)(struct of_device* dev);
37 int (*shutdown)(struct of_device* dev);
38
39 struct device_driver driver;
40};
41#define to_of_platform_driver(drv) \
42 container_of(drv,struct of_platform_driver, driver)
43
44/* Platform drivers register/unregister */
45extern int of_register_platform_driver(struct of_platform_driver *drv);
46extern void of_unregister_platform_driver(struct of_platform_driver *drv);
47
48/* Platform devices and busses creation */
49extern struct of_device *of_platform_device_create(struct device_node *np,
50 const char *bus_id,
51 struct device *parent);
52/* pseudo "matches" value to not do deep probe */
53#define OF_NO_DEEP_PROBE ((struct of_device_id *)-1)
54
55extern int of_platform_bus_probe(struct device_node *root,
56 struct of_device_id *matches,
57 struct device *parent);
58
59extern struct of_device *of_find_device_by_node(struct device_node *np);
60extern struct of_device *of_find_device_by_phandle(phandle ph);