diff options
Diffstat (limited to 'arch/arm/mach-aaec2000/clock.c')
| -rw-r--r-- | arch/arm/mach-aaec2000/clock.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/arch/arm/mach-aaec2000/clock.c b/arch/arm/mach-aaec2000/clock.c new file mode 100644 index 000000000000..99e019169dda --- /dev/null +++ b/arch/arm/mach-aaec2000/clock.c | |||
| @@ -0,0 +1,110 @@ | |||
| 1 | /* | ||
| 2 | * linux/arch/arm/mach-aaec2000/clock.c | ||
| 3 | * | ||
| 4 | * Copyright (C) 2005 Nicolas Bellido Y Ortega | ||
| 5 | * | ||
| 6 | * Based on linux/arch/arm/mach-integrator/clock.c | ||
| 7 | * | ||
| 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. | ||
| 11 | */ | ||
| 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 | |||
| 18 | #include <asm/semaphore.h> | ||
| 19 | #include <asm/hardware/clock.h> | ||
| 20 | |||
| 21 | #include "clock.h" | ||
| 22 | |||
| 23 | static LIST_HEAD(clocks); | ||
| 24 | static DECLARE_MUTEX(clocks_sem); | ||
| 25 | |||
| 26 | struct clk *clk_get(struct device *dev, const char *id) | ||
| 27 | { | ||
| 28 | struct clk *p, *clk = ERR_PTR(-ENOENT); | ||
| 29 | |||
| 30 | down(&clocks_sem); | ||
| 31 | list_for_each_entry(p, &clocks, node) { | ||
| 32 | if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) { | ||
| 33 | clk = p; | ||
| 34 | break; | ||
| 35 | } | ||
| 36 | } | ||
| 37 | up(&clocks_sem); | ||
| 38 | |||
| 39 | return clk; | ||
| 40 | } | ||
| 41 | EXPORT_SYMBOL(clk_get); | ||
| 42 | |||
| 43 | void clk_put(struct clk *clk) | ||
| 44 | { | ||
| 45 | module_put(clk->owner); | ||
| 46 | } | ||
| 47 | EXPORT_SYMBOL(clk_put); | ||
| 48 | |||
| 49 | int clk_enable(struct clk *clk) | ||
| 50 | { | ||
| 51 | return 0; | ||
| 52 | } | ||
| 53 | EXPORT_SYMBOL(clk_enable); | ||
| 54 | |||
| 55 | void clk_disable(struct clk *clk) | ||
| 56 | { | ||
| 57 | } | ||
| 58 | EXPORT_SYMBOL(clk_disable); | ||
| 59 | |||
| 60 | int clk_use(struct clk *clk) | ||
| 61 | { | ||
| 62 | return 0; | ||
| 63 | } | ||
| 64 | EXPORT_SYMBOL(clk_use); | ||
| 65 | |||
| 66 | void clk_unuse(struct clk *clk) | ||
| 67 | { | ||
| 68 | } | ||
| 69 | EXPORT_SYMBOL(clk_unuse); | ||
| 70 | |||
| 71 | unsigned long clk_get_rate(struct clk *clk) | ||
| 72 | { | ||
| 73 | return clk->rate; | ||
| 74 | } | ||
| 75 | EXPORT_SYMBOL(clk_get_rate); | ||
| 76 | |||
| 77 | long clk_round_rate(struct clk *clk, unsigned long rate) | ||
| 78 | { | ||
| 79 | return rate; | ||
| 80 | } | ||
| 81 | EXPORT_SYMBOL(clk_round_rate); | ||
| 82 | |||
| 83 | int clk_set_rate(struct clk *clk, unsigned long rate) | ||
| 84 | { | ||
| 85 | return 0; | ||
| 86 | } | ||
| 87 | EXPORT_SYMBOL(clk_set_rate); | ||
| 88 | |||
| 89 | int clk_register(struct clk *clk) | ||
| 90 | { | ||
| 91 | down(&clocks_sem); | ||
| 92 | list_add(&clk->node, &clocks); | ||
| 93 | up(&clocks_sem); | ||
| 94 | return 0; | ||
| 95 | } | ||
| 96 | EXPORT_SYMBOL(clk_register); | ||
| 97 | |||
| 98 | void clk_unregister(struct clk *clk) | ||
| 99 | { | ||
| 100 | down(&clocks_sem); | ||
| 101 | list_del(&clk->node); | ||
| 102 | up(&clocks_sem); | ||
| 103 | } | ||
| 104 | EXPORT_SYMBOL(clk_unregister); | ||
| 105 | |||
| 106 | static int __init clk_init(void) | ||
| 107 | { | ||
| 108 | return 0; | ||
| 109 | } | ||
| 110 | arch_initcall(clk_init); | ||
