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1da177e4 LT |
1 | /* |
2 | * linux/arch/arm/mach-integrator/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> | |
1da177e4 | 13 | #include <linux/errno.h> |
f8ce2547 | 14 | #include <linux/clk.h> |
00431707 | 15 | #include <linux/mutex.h> |
1da177e4 | 16 | |
39c0cb02 | 17 | #include <asm/hardware/icst525.h> |
d72fbdf0 RK |
18 | #include <asm/clkdev.h> |
19 | #include <mach/clkdev.h> | |
1da177e4 LT |
20 | |
21 | int clk_enable(struct clk *clk) | |
22 | { | |
23 | return 0; | |
24 | } | |
25 | EXPORT_SYMBOL(clk_enable); | |
26 | ||
27 | void clk_disable(struct clk *clk) | |
28 | { | |
29 | } | |
30 | EXPORT_SYMBOL(clk_disable); | |
31 | ||
1da177e4 LT |
32 | unsigned long clk_get_rate(struct clk *clk) |
33 | { | |
34 | return clk->rate; | |
35 | } | |
36 | EXPORT_SYMBOL(clk_get_rate); | |
37 | ||
38 | long clk_round_rate(struct clk *clk, unsigned long rate) | |
39 | { | |
39c0cb02 | 40 | struct icst_vco vco; |
64fceb1d RK |
41 | vco = icst525_hz_to_vco(clk->params, rate); |
42 | return icst525_hz(clk->params, vco); | |
1da177e4 LT |
43 | } |
44 | EXPORT_SYMBOL(clk_round_rate); | |
45 | ||
46 | int clk_set_rate(struct clk *clk, unsigned long rate) | |
47 | { | |
48 | int ret = -EIO; | |
d72fbdf0 | 49 | |
1da177e4 | 50 | if (clk->setvco) { |
39c0cb02 | 51 | struct icst_vco vco; |
1da177e4 | 52 | |
64fceb1d RK |
53 | vco = icst525_hz_to_vco(clk->params, rate); |
54 | clk->rate = icst525_hz(clk->params, vco); | |
1da177e4 LT |
55 | clk->setvco(clk, vco); |
56 | ret = 0; | |
57 | } | |
d72fbdf0 | 58 | return ret; |
1da177e4 LT |
59 | } |
60 | EXPORT_SYMBOL(clk_set_rate); |