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/*
* arch/sh/kernel/cpu/clock.c - SuperH clock framework
*
* Copyright (C) 2005 - 2009 Paul Mundt
*
* This clock framework is derived from the OMAP version by:
*
* Copyright (C) 2004 - 2008 Nokia Corporation
* Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
*
* Modified for omap shared clock framework by Tony Lindgren <tony@atomide.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/clk.h>
#include <asm/clock.h>
#include <asm/machvec.h>
int __init clk_init(void)
{
int ret;
ret = arch_clk_init();
if (unlikely(ret)) {
pr_err("%s: CPU clock registration failed.\n", __func__);
return ret;
}
if (sh_mv.mv_clk_init) {
ret = sh_mv.mv_clk_init();
if (unlikely(ret)) {
pr_err("%s: machvec clock initialization failed.\n",
__func__);
return ret;
}
}
/* Kick the child clocks.. */
recalculate_root_clocks();
/* Enable the necessary init clocks */
clk_enable_init_clocks();
return ret;
}
/*
* Returns a clock. Note that we first try to use device id on the bus
* and clock name. If this fails, we try to use clock name only.
*/
struct clk *clk_get(struct device *dev, const char *con_id)
{
const char *dev_id = dev ? dev_name(dev) : NULL;
return clk_get_sys(dev_id, con_id);
}
EXPORT_SYMBOL_GPL(clk_get);
void clk_put(struct clk *clk)
{
}
EXPORT_SYMBOL_GPL(clk_put);
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