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/arch/arm/mach-integrator/lm.c

https://github.com/AICP/kernel_google_msm
C | 99 lines | 69 code | 19 blank | 11 comment | 5 complexity | a649025fa918fe7c8958acd532ba7cfb MD5 | raw file
 1/*
 2 *  linux/arch/arm/mach-integrator/lm.c
 3 *
 4 *  Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 */
10#include <linux/module.h>
11#include <linux/init.h>
12#include <linux/device.h>
13#include <linux/slab.h>
14
15#include <mach/lm.h>
16
17#define to_lm_device(d)	container_of(d, struct lm_device, dev)
18#define to_lm_driver(d)	container_of(d, struct lm_driver, drv)
19
20static int lm_match(struct device *dev, struct device_driver *drv)
21{
22	return 1;
23}
24
25static int lm_bus_probe(struct device *dev)
26{
27	struct lm_device *lmdev = to_lm_device(dev);
28	struct lm_driver *lmdrv = to_lm_driver(dev->driver);
29
30	return lmdrv->probe(lmdev);
31}
32
33static int lm_bus_remove(struct device *dev)
34{
35	struct lm_device *lmdev = to_lm_device(dev);
36	struct lm_driver *lmdrv = to_lm_driver(dev->driver);
37
38	if (lmdrv->remove)
39		lmdrv->remove(lmdev);
40	return 0;
41}
42
43static struct bus_type lm_bustype = {
44	.name		= "logicmodule",
45	.match		= lm_match,
46	.probe		= lm_bus_probe,
47	.remove		= lm_bus_remove,
48//	.suspend	= lm_bus_suspend,
49//	.resume		= lm_bus_resume,
50};
51
52static int __init lm_init(void)
53{
54	return bus_register(&lm_bustype);
55}
56
57postcore_initcall(lm_init);
58
59int lm_driver_register(struct lm_driver *drv)
60{
61	drv->drv.bus = &lm_bustype;
62	return driver_register(&drv->drv);
63}
64
65void lm_driver_unregister(struct lm_driver *drv)
66{
67	driver_unregister(&drv->drv);
68}
69
70static void lm_device_release(struct device *dev)
71{
72	struct lm_device *d = to_lm_device(dev);
73
74	kfree(d);
75}
76
77int lm_device_register(struct lm_device *dev)
78{
79	int ret;
80
81	dev->dev.release = lm_device_release;
82	dev->dev.bus = &lm_bustype;
83
84	ret = dev_set_name(&dev->dev, "lm%d", dev->id);
85	if (ret)
86		return ret;
87	dev->resource.name = dev_name(&dev->dev);
88
89	ret = request_resource(&iomem_resource, &dev->resource);
90	if (ret == 0) {
91		ret = device_register(&dev->dev);
92		if (ret)
93			release_resource(&dev->resource);
94	}
95	return ret;
96}
97
98EXPORT_SYMBOL(lm_driver_register);
99EXPORT_SYMBOL(lm_driver_unregister);