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

98 lines
2.1 KiB
C

/*
* linux/arch/arm/mach-integrator/lm.c
*
* Copyright (C) 2003 Deep Blue Solutions Ltd, All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <asm/arch/lm.h>
#define to_lm_device(d) container_of(d, struct lm_device, dev)
#define to_lm_driver(d) container_of(d, struct lm_driver, drv)
static int lm_match(struct device *dev, struct device_driver *drv)
{
return 1;
}
static struct bus_type lm_bustype = {
.name = "logicmodule",
.match = lm_match,
// .suspend = lm_suspend,
// .resume = lm_resume,
};
static int __init lm_init(void)
{
return bus_register(&lm_bustype);
}
postcore_initcall(lm_init);
static int lm_bus_probe(struct device *dev)
{
struct lm_device *lmdev = to_lm_device(dev);
struct lm_driver *lmdrv = to_lm_driver(dev->driver);
return lmdrv->probe(lmdev);
}
static int lm_bus_remove(struct device *dev)
{
struct lm_device *lmdev = to_lm_device(dev);
struct lm_driver *lmdrv = to_lm_driver(dev->driver);
lmdrv->remove(lmdev);
return 0;
}
int lm_driver_register(struct lm_driver *drv)
{
drv->drv.bus = &lm_bustype;
drv->drv.probe = lm_bus_probe;
drv->drv.remove = lm_bus_remove;
return driver_register(&drv->drv);
}
void lm_driver_unregister(struct lm_driver *drv)
{
driver_unregister(&drv->drv);
}
static void lm_device_release(struct device *dev)
{
struct lm_device *d = to_lm_device(dev);
kfree(d);
}
int lm_device_register(struct lm_device *dev)
{
int ret;
dev->dev.release = lm_device_release;
dev->dev.bus = &lm_bustype;
snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id), "lm%d", dev->id);
dev->resource.name = dev->dev.bus_id;
ret = request_resource(&iomem_resource, &dev->resource);
if (ret == 0) {
ret = device_register(&dev->dev);
if (ret)
release_resource(&dev->resource);
}
return ret;
}
EXPORT_SYMBOL(lm_driver_register);
EXPORT_SYMBOL(lm_driver_unregister);