powerpc: Merge of_device.c and of_device.h

#include <linux/config.h>

#include <linux/string.h>

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/module.h>

#include <linux/mod_devicetable.h>

#include <asm/errno.h>

#include <asm/of_device.h>

/**

 * of_match_device - Tell if an of_device structure has a matching

 * of_match structure

 * @ids: array of of device match structures to search in

 * @dev: the of device structure to match against

 *

 * Used by a driver to check whether an of_device present in the

 * system is in its list of supported devices.

 */

const struct of_device_id *of_match_device(const struct of_device_id *matches,

					const struct of_device *dev)

{

	if (!dev->node)

		return NULL;

	while (matches->name[0] || matches->type[0] || matches->compatible[0]) {

		int match = 1;

		if (matches->name[0])

			match &= dev->node->name

				&& !strcmp(matches->name, dev->node->name);

		if (matches->type[0])

			match &= dev->node->type

				&& !strcmp(matches->type, dev->node->type);

		if (matches->compatible[0])

			match &= device_is_compatible(dev->node,

				matches->compatible);

		if (match)

			return matches;

		matches++;

	}

	return NULL;

}

static int of_platform_bus_match(struct device *dev, struct device_driver *drv)

{

	struct of_device * of_dev = to_of_device(dev);

	struct of_platform_driver * of_drv = to_of_platform_driver(drv);

	const struct of_device_id * matches = of_drv->match_table;

	if (!matches)

		return 0;

	return of_match_device(matches, of_dev) != NULL;

}

struct of_device *of_dev_get(struct of_device *dev)

{

	struct device *tmp;

	if (!dev)

		return NULL;

	tmp = get_device(&dev->dev);

	if (tmp)

		return to_of_device(tmp);

	else

		return NULL;

}

void of_dev_put(struct of_device *dev)

{

	if (dev)

		put_device(&dev->dev);

}

static int of_device_probe(struct device *dev)

{

	int error = -ENODEV;

	struct of_platform_driver *drv;

	struct of_device *of_dev;

	const struct of_device_id *match;

	drv = to_of_platform_driver(dev->driver);

	of_dev = to_of_device(dev);

	if (!drv->probe)

		return error;

	of_dev_get(of_dev);

	match = of_match_device(drv->match_table, of_dev);

	if (match)

		error = drv->probe(of_dev, match);

	if (error)

		of_dev_put(of_dev);

	return error;

}

static int of_device_remove(struct device *dev)

{

	struct of_device * of_dev = to_of_device(dev);

	struct of_platform_driver * drv = to_of_platform_driver(dev->driver);

	if (dev->driver && drv->remove)

		drv->remove(of_dev);

	return 0;

}

static int of_device_suspend(struct device *dev, pm_message_t state)

{

	struct of_device * of_dev = to_of_device(dev);

	struct of_platform_driver * drv = to_of_platform_driver(dev->driver);

	int error = 0;

	if (dev->driver && drv->suspend)

		error = drv->suspend(of_dev, state);

	return error;

}

static int of_device_resume(struct device * dev)

{

	struct of_device * of_dev = to_of_device(dev);

	struct of_platform_driver * drv = to_of_platform_driver(dev->driver);

	int error = 0;

	if (dev->driver && drv->resume)

		error = drv->resume(of_dev);

	return error;

}

struct bus_type of_platform_bus_type = {

       .name	= "of_platform",

       .match	= of_platform_bus_match,

       .suspend	= of_device_suspend,

       .resume	= of_device_resume,

};

static int __init of_bus_driver_init(void)

{

	return bus_register(&of_platform_bus_type);

}

postcore_initcall(of_bus_driver_init);

int of_register_driver(struct of_platform_driver *drv)

{

	int count = 0;

	/* initialize common driver fields */

	drv->driver.name = drv->name;

	drv->driver.bus = &of_platform_bus_type;

	drv->driver.probe = of_device_probe;

	drv->driver.remove = of_device_remove;

	/* register with core */

	count = driver_register(&drv->driver);

	return count ? count : 1;

}

void of_unregister_driver(struct of_platform_driver *drv)

{

	driver_unregister(&drv->driver);

}

static ssize_t dev_show_devspec(struct device *dev, struct device_attribute *attr, char *buf)

{

	struct of_device *ofdev;

	ofdev = to_of_device(dev);

	return sprintf(buf, "%s", ofdev->node->full_name);

}

static DEVICE_ATTR(devspec, S_IRUGO, dev_show_devspec, NULL);

/**

 * of_release_dev - free an of device structure when all users of it are finished.

 * @dev: device that's been disconnected

 *

 * Will be called only by the device core when all users of this of device are

 * done.

 */

void of_release_dev(struct device *dev)

{

	struct of_device *ofdev;

        ofdev = to_of_device(dev);

	of_node_put(ofdev->node);

	kfree(ofdev);

}

int of_device_register(struct of_device *ofdev)

{

	int rc;

	struct of_device **odprop;

	BUG_ON(ofdev->node == NULL);

	odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);

	if (!odprop) {

		struct property *new_prop;

		new_prop = kmalloc(sizeof(struct property) + sizeof(struct of_device *),

			GFP_KERNEL);

		if (new_prop == NULL)

			return -ENOMEM;

		new_prop->name = "linux,device";

		new_prop->length = sizeof(sizeof(struct of_device *));

		new_prop->value = (unsigned char *)&new_prop[1];

		odprop = (struct of_device **)new_prop->value;

		*odprop = NULL;

		prom_add_property(ofdev->node, new_prop);

	}

	*odprop = ofdev;

	rc = device_register(&ofdev->dev);

	if (rc)

		return rc;

	device_create_file(&ofdev->dev, &dev_attr_devspec);

	return 0;

}

void of_device_unregister(struct of_device *ofdev)

{

	struct of_device **odprop;

	device_remove_file(&ofdev->dev, &dev_attr_devspec);

	odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);

	if (odprop)

		*odprop = NULL;

	device_unregister(&ofdev->dev);

}

struct of_device* of_platform_device_create(struct device_node *np,

					    const char *bus_id,

					    struct device *parent)

{

	struct of_device *dev;

	dev = kmalloc(sizeof(*dev), GFP_KERNEL);

	if (!dev)

		return NULL;

	memset(dev, 0, sizeof(*dev));

	dev->node = of_node_get(np);

	dev->dma_mask = 0xffffffffUL;

	dev->dev.dma_mask = &dev->dma_mask;

	dev->dev.parent = parent;

	dev->dev.bus = &of_platform_bus_type;

	dev->dev.release = of_release_dev;

	strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);

	if (of_device_register(dev) != 0) {

		kfree(dev);

		return NULL;

	}

	return dev;

}

EXPORT_SYMBOL(of_match_device);

EXPORT_SYMBOL(of_platform_bus_type);

EXPORT_SYMBOL(of_register_driver);

EXPORT_SYMBOL(of_unregister_driver);

EXPORT_SYMBOL(of_device_register);

EXPORT_SYMBOL(of_device_unregister);

EXPORT_SYMBOL(of_dev_get);

EXPORT_SYMBOL(of_dev_put);

EXPORT_SYMBOL(of_platform_device_create);

EXPORT_SYMBOL(of_release_dev);

#ifndef __OF_DEVICE_H__

#define __OF_DEVICE_H__

#ifndef _ASM_POWERPC_OF_DEVICE_H

#define _ASM_POWERPC_OF_DEVICE_H

#include <linux/device.h>

#include <linux/mod_devicetable.h>

						   struct device *parent);

extern void of_release_dev(struct device *dev);

#endif /* __OF_DEVICE_H__ */

#endif /* _ASM_POWERPC_OF_DEVICE_H */

#include <asm-ppc/of_device.h>