linux-imx

/*

 * Bus & driver management routines for devices within

 * a MacIO ASIC. Interface to new driver model mostly

 * stolen from the PCI version.

 * 

 *  Copyright (C) 2005 Ben. Herrenschmidt (benh@kernel.crashing.org)

 *

 *  This program is free software; you can redistribute it and/or

 *  modify it under the terms of the GNU General Public License

 *  as published by the Free Software Foundation; either version

 *  2 of the License, or (at your option) any later version.

 *

 * TODO:

 * 

 *  - Don't probe below media bay by default, but instead provide

 *    some hooks for media bay to dynamically add/remove it's own

 *    sub-devices.

 */

#include <linux/string.h>

#include <linux/kernel.h>

#include <linux/pci.h>

#include <linux/pci_ids.h>

#include <linux/init.h>

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/of_address.h>

#include <linux/of_irq.h>

​

#include <asm/machdep.h>

#include <asm/macio.h>

#include <asm/pmac_feature.h>

#include <asm/prom.h>

​

#undef DEBUG

​

#define MAX_NODE_NAME_SIZE (20 - 12)

​

static struct macio_chip      *macio_on_hold;

​

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

{

    const struct of_device_id * matches = drv->of_match_table;

​

    if (!matches) 

        return 0;

​

    return of_match_device(matches, dev) != NULL;

}

​

struct macio_dev *macio_dev_get(struct macio_dev *dev)

{

    struct device *tmp;

​

    if (!dev)

        return NULL;

    tmp = get_device(&dev->ofdev.dev);

    if (tmp)

        return to_macio_device(tmp);

    else

        return NULL;

}

​