2 * linux/arch/arm/mach-aaec2000/clock.c
4 * Copyright (C) 2005 Nicolas Bellido Y Ortega
6 * Based on linux/arch/arm/mach-integrator/clock.c
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/list.h>
15 #include <linux/errno.h>
16 #include <linux/err.h>
17 #include <linux/string.h>
18 #include <linux/clk.h>
20 #include <asm/semaphore.h>
24 static LIST_HEAD(clocks);
25 static DECLARE_MUTEX(clocks_sem);
27 struct clk *clk_get(struct device *dev, const char *id)
29 struct clk *p, *clk = ERR_PTR(-ENOENT);
32 list_for_each_entry(p, &clocks, node) {
33 if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
42 EXPORT_SYMBOL(clk_get);
44 void clk_put(struct clk *clk)
46 module_put(clk->owner);
48 EXPORT_SYMBOL(clk_put);
50 int clk_enable(struct clk *clk)
54 EXPORT_SYMBOL(clk_enable);
56 void clk_disable(struct clk *clk)
59 EXPORT_SYMBOL(clk_disable);
61 unsigned long clk_get_rate(struct clk *clk)
65 EXPORT_SYMBOL(clk_get_rate);
67 long clk_round_rate(struct clk *clk, unsigned long rate)
71 EXPORT_SYMBOL(clk_round_rate);
73 int clk_set_rate(struct clk *clk, unsigned long rate)
77 EXPORT_SYMBOL(clk_set_rate);
79 int clk_register(struct clk *clk)
82 list_add(&clk->node, &clocks);
86 EXPORT_SYMBOL(clk_register);
88 void clk_unregister(struct clk *clk)
94 EXPORT_SYMBOL(clk_unregister);
96 static int __init clk_init(void)
100 arch_initcall(clk_init);