sh: sem2mutex conversion for clock framework.

/*

 * arch/sh/kernel/cpu/clock.c - SuperH clock framework

 *

 *  Copyright (C) 2005  Paul Mundt

 *  Copyright (C) 2005, 2006  Paul Mundt

 *

 * This clock framework is derived from the OMAP version by:

 *

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/module.h>

#include <linux/mutex.h>

#include <linux/list.h>

#include <linux/kref.h>

#include <linux/seq_file.h>

static LIST_HEAD(clock_list);

static DEFINE_SPINLOCK(clock_lock);

static DECLARE_MUTEX(clock_list_sem);

static DEFINE_MUTEX(clock_list_sem);

/*

 * Each subtype is expected to define the init routines for these clocks,

int clk_register(struct clk *clk)

{

	down(&clock_list_sem);

	mutex_lock(&clock_list_sem);

	list_add(&clk->node, &clock_list);

	kref_init(&clk->kref);

	up(&clock_list_sem);

	mutex_unlock(&clock_list_sem);

	return 0;

}

void clk_unregister(struct clk *clk)

{

	down(&clock_list_sem);

	mutex_lock(&clock_list_sem);

	list_del(&clk->node);

	up(&clock_list_sem);

	mutex_unlock(&clock_list_sem);

}

inline unsigned long clk_get_rate(struct clk *clk)

{

	struct clk *p, *clk = ERR_PTR(-ENOENT);

	down(&clock_list_sem);

	mutex_lock(&clock_list_sem);

	list_for_each_entry(p, &clock_list, node) {

		if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {

			clk = p;

			break;

		}

	}

	up(&clock_list_sem);

	mutex_unlock(&clock_list_sem);

	return clk;

}