1 /*
2 * linux/arch/arm/plat-versatile/clock.c
3 *
4 * Copyright (C) 2004 ARM Limited.
5 * Written by Deep Blue Solutions Limited.
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11 #include <linux/module.h>
12 #include <linux/kernel.h>
13 #include <linux/errno.h>
14 #include <linux/clk.h>
15 #include <linux/mutex.h>
16
17 #include <asm/hardware/icst.h>
18
19 #include <mach/clkdev.h>
20
clk_enable(struct clk * clk)21 int clk_enable(struct clk *clk)
22 {
23 return 0;
24 }
25 EXPORT_SYMBOL(clk_enable);
26
clk_disable(struct clk * clk)27 void clk_disable(struct clk *clk)
28 {
29 }
30 EXPORT_SYMBOL(clk_disable);
31
clk_get_rate(struct clk * clk)32 unsigned long clk_get_rate(struct clk *clk)
33 {
34 return clk->rate;
35 }
36 EXPORT_SYMBOL(clk_get_rate);
37
clk_round_rate(struct clk * clk,unsigned long rate)38 long clk_round_rate(struct clk *clk, unsigned long rate)
39 {
40 long ret = -EIO;
41 if (clk->ops && clk->ops->round)
42 ret = clk->ops->round(clk, rate);
43 return ret;
44 }
45 EXPORT_SYMBOL(clk_round_rate);
46
clk_set_rate(struct clk * clk,unsigned long rate)47 int clk_set_rate(struct clk *clk, unsigned long rate)
48 {
49 int ret = -EIO;
50 if (clk->ops && clk->ops->set)
51 ret = clk->ops->set(clk, rate);
52 return ret;
53 }
54 EXPORT_SYMBOL(clk_set_rate);
55
icst_clk_round(struct clk * clk,unsigned long rate)56 long icst_clk_round(struct clk *clk, unsigned long rate)
57 {
58 struct icst_vco vco;
59 vco = icst_hz_to_vco(clk->params, rate);
60 return icst_hz(clk->params, vco);
61 }
62 EXPORT_SYMBOL(icst_clk_round);
63
icst_clk_set(struct clk * clk,unsigned long rate)64 int icst_clk_set(struct clk *clk, unsigned long rate)
65 {
66 struct icst_vco vco;
67
68 vco = icst_hz_to_vco(clk->params, rate);
69 clk->rate = icst_hz(clk->params, vco);
70 clk->ops->setvco(clk, vco);
71
72 return 0;
73 }
74 EXPORT_SYMBOL(icst_clk_set);
75