diff options
Diffstat (limited to 'arch/arm/plat-versatile/clock.c')
-rw-r--r-- | arch/arm/plat-versatile/clock.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/arch/arm/plat-versatile/clock.c b/arch/arm/plat-versatile/clock.c new file mode 100644 index 000000000000..5c8b6564fdc2 --- /dev/null +++ b/arch/arm/plat-versatile/clock.c | |||
@@ -0,0 +1,74 @@ | |||
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 | |||
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 | |||
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 | { | ||
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 | |||
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 | |||
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 | |||
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); | ||