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); | ||
