linux-imx

/*

 *  linux/drivers/mfd/mcp-core.c

 *

 *  Copyright (C) 2001 Russell King

 *

 * 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.

 *

 *  Generic MCP (Multimedia Communications Port) layer.  All MCP locking

 *  is solely held within this file.

 */

#include <linux/module.h>

#include <linux/init.h>

#include <linux/errno.h>

#include <linux/smp.h>

#include <linux/device.h>

#include <linux/slab.h>

#include <linux/string.h>

#include <linux/mfd/mcp.h>

​

​

#define to_mcp(d)       container_of(d, struct mcp, attached_device)

#define to_mcp_driver(d)    container_of(d, struct mcp_driver, drv)

​

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

{

    return 1;

}

​

static int mcp_bus_probe(struct device *dev)

{

    struct mcp *mcp = to_mcp(dev);

    struct mcp_driver *drv = to_mcp_driver(dev->driver);

​

    return drv->probe(mcp);

}

​

static int mcp_bus_remove(struct device *dev)

{

    struct mcp *mcp = to_mcp(dev);

    struct mcp_driver *drv = to_mcp_driver(dev->driver);

​

    drv->remove(mcp);

    return 0;

}

​

static struct bus_type mcp_bus_type = {

    .name       = "mcp",

    .match      = mcp_bus_match,

    .probe      = mcp_bus_probe,

    .remove     = mcp_bus_remove,

};

​

/**

 *  mcp_set_telecom_divisor - set the telecom divisor

 *  @mcp: MCP interface structure

 *  @div: SIB clock divisor

 *

 *  Set the telecom divisor on the MCP interface.  The resulting

 *  sample rate is SIBCLOCK/div.

 */

void mcp_set_telecom_divisor(struct mcp *mcp, unsigned int div)