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