aboutsummaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
-rw-r--r--arch/arm/mach-aaec2000/Makefile2
-rw-r--r--arch/arm/mach-aaec2000/clock.c110
-rw-r--r--arch/arm/mach-aaec2000/clock.h23
3 files changed, 134 insertions, 1 deletions
diff --git a/arch/arm/mach-aaec2000/Makefile b/arch/arm/mach-aaec2000/Makefile
index 20ec83896c37..a8e462f58bc9 100644
--- a/arch/arm/mach-aaec2000/Makefile
+++ b/arch/arm/mach-aaec2000/Makefile
@@ -3,7 +3,7 @@
3# 3#
4 4
5# Common support (must be linked before board specific support) 5# Common support (must be linked before board specific support)
6obj-y += core.o 6obj-y += core.o clock.o
7 7
8# Specific board support 8# Specific board support
9obj-$(CONFIG_MACH_AAED2000) += aaed2000.o 9obj-$(CONFIG_MACH_AAED2000) += aaed2000.o
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
23static LIST_HEAD(clocks);
24static DECLARE_MUTEX(clocks_sem);
25
26struct 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}
41EXPORT_SYMBOL(clk_get);
42
43void clk_put(struct clk *clk)
44{
45 module_put(clk->owner);
46}
47EXPORT_SYMBOL(clk_put);
48
49int clk_enable(struct clk *clk)
50{
51 return 0;
52}
53EXPORT_SYMBOL(clk_enable);
54
55void clk_disable(struct clk *clk)
56{
57}
58EXPORT_SYMBOL(clk_disable);
59
60int clk_use(struct clk *clk)
61{
62 return 0;
63}
64EXPORT_SYMBOL(clk_use);
65
66void clk_unuse(struct clk *clk)
67{
68}
69EXPORT_SYMBOL(clk_unuse);
70
71unsigned long clk_get_rate(struct clk *clk)
72{
73 return clk->rate;
74}
75EXPORT_SYMBOL(clk_get_rate);
76
77long clk_round_rate(struct clk *clk, unsigned long rate)
78{
79 return rate;
80}
81EXPORT_SYMBOL(clk_round_rate);
82
83int clk_set_rate(struct clk *clk, unsigned long rate)
84{
85 return 0;
86}
87EXPORT_SYMBOL(clk_set_rate);
88
89int clk_register(struct clk *clk)
90{
91 down(&clocks_sem);
92 list_add(&clk->node, &clocks);
93 up(&clocks_sem);
94 return 0;
95}
96EXPORT_SYMBOL(clk_register);
97
98void clk_unregister(struct clk *clk)
99{
100 down(&clocks_sem);
101 list_del(&clk->node);
102 up(&clocks_sem);
103}
104EXPORT_SYMBOL(clk_unregister);
105
106static int __init clk_init(void)
107{
108 return 0;
109}
110arch_initcall(clk_init);
diff --git a/arch/arm/mach-aaec2000/clock.h b/arch/arm/mach-aaec2000/clock.h
new file mode 100644
index 000000000000..d4bb74ff613f
--- /dev/null
+++ b/arch/arm/mach-aaec2000/clock.h
@@ -0,0 +1,23 @@
1/*
2 * linux/arch/arm/mach-aaec2000/clock.h
3 *
4 * Copyright (C) 2005 Nicolas Bellido Y Ortega
5 *
6 * Based on linux/arch/arm/mach-integrator/clock.h
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 */
12struct module;
13
14struct clk {
15 struct list_head node;
16 unsigned long rate;
17 struct module *owner;
18 const char *name;
19 void *data;
20};
21
22int clk_register(struct clk *clk);
23void clk_unregister(struct clk *clk);