a8d3584a2d
It seems that clk_use() and clk_unuse() are additional complexity which isn't required anymore. Remove them from the clock framework to avoid the additional confusion which they cause, and update all ARM machine types except for OMAP. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
101 lines
1.8 KiB
C
101 lines
1.8 KiB
C
/*
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* linux/arch/arm/mach-aaec2000/clock.c
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*
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* Copyright (C) 2005 Nicolas Bellido Y Ortega
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*
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* Based on linux/arch/arm/mach-integrator/clock.c
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/errno.h>
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#include <linux/err.h>
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#include <linux/string.h>
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#include <asm/semaphore.h>
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#include <asm/hardware/clock.h>
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#include "clock.h"
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static LIST_HEAD(clocks);
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static DECLARE_MUTEX(clocks_sem);
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struct clk *clk_get(struct device *dev, const char *id)
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{
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struct clk *p, *clk = ERR_PTR(-ENOENT);
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down(&clocks_sem);
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list_for_each_entry(p, &clocks, node) {
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if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
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clk = p;
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break;
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}
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}
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up(&clocks_sem);
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return clk;
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}
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EXPORT_SYMBOL(clk_get);
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void clk_put(struct clk *clk)
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{
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module_put(clk->owner);
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}
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EXPORT_SYMBOL(clk_put);
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int clk_enable(struct clk *clk)
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{
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return 0;
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}
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EXPORT_SYMBOL(clk_enable);
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void clk_disable(struct clk *clk)
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{
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}
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EXPORT_SYMBOL(clk_disable);
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unsigned long clk_get_rate(struct clk *clk)
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{
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return clk->rate;
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}
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EXPORT_SYMBOL(clk_get_rate);
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long clk_round_rate(struct clk *clk, unsigned long rate)
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{
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return rate;
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}
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EXPORT_SYMBOL(clk_round_rate);
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int clk_set_rate(struct clk *clk, unsigned long rate)
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{
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return 0;
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}
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EXPORT_SYMBOL(clk_set_rate);
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int clk_register(struct clk *clk)
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{
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down(&clocks_sem);
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list_add(&clk->node, &clocks);
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up(&clocks_sem);
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return 0;
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}
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EXPORT_SYMBOL(clk_register);
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void clk_unregister(struct clk *clk)
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{
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down(&clocks_sem);
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list_del(&clk->node);
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up(&clocks_sem);
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}
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EXPORT_SYMBOL(clk_unregister);
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static int __init clk_init(void)
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{
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return 0;
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}
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arch_initcall(clk_init);
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