diff options
Diffstat (limited to 'arch/arm/mach-integrator/clock.c')
-rw-r--r-- | arch/arm/mach-integrator/clock.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/arm/mach-integrator/clock.c b/arch/arm/mach-integrator/clock.c index 40684e01e865..95a1e263f7fa 100644 --- a/arch/arm/mach-integrator/clock.c +++ b/arch/arm/mach-integrator/clock.c | |||
@@ -15,6 +15,7 @@ | |||
15 | #include <linux/err.h> | 15 | #include <linux/err.h> |
16 | #include <linux/string.h> | 16 | #include <linux/string.h> |
17 | #include <linux/clk.h> | 17 | #include <linux/clk.h> |
18 | #include <linux/mutex.h> | ||
18 | 19 | ||
19 | #include <asm/semaphore.h> | 20 | #include <asm/semaphore.h> |
20 | #include <asm/hardware/icst525.h> | 21 | #include <asm/hardware/icst525.h> |
@@ -22,20 +23,20 @@ | |||
22 | #include "clock.h" | 23 | #include "clock.h" |
23 | 24 | ||
24 | static LIST_HEAD(clocks); | 25 | static LIST_HEAD(clocks); |
25 | static DECLARE_MUTEX(clocks_sem); | 26 | static DEFINE_MUTEX(clocks_mutex); |
26 | 27 | ||
27 | struct clk *clk_get(struct device *dev, const char *id) | 28 | struct clk *clk_get(struct device *dev, const char *id) |
28 | { | 29 | { |
29 | struct clk *p, *clk = ERR_PTR(-ENOENT); | 30 | struct clk *p, *clk = ERR_PTR(-ENOENT); |
30 | 31 | ||
31 | down(&clocks_sem); | 32 | mutex_lock(&clocks_mutex); |
32 | list_for_each_entry(p, &clocks, node) { | 33 | list_for_each_entry(p, &clocks, node) { |
33 | if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) { | 34 | if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) { |
34 | clk = p; | 35 | clk = p; |
35 | break; | 36 | break; |
36 | } | 37 | } |
37 | } | 38 | } |
38 | up(&clocks_sem); | 39 | mutex_unlock(&clocks_mutex); |
39 | 40 | ||
40 | return clk; | 41 | return clk; |
41 | } | 42 | } |
@@ -107,18 +108,18 @@ static struct clk uart_clk = { | |||
107 | 108 | ||
108 | int clk_register(struct clk *clk) | 109 | int clk_register(struct clk *clk) |
109 | { | 110 | { |
110 | down(&clocks_sem); | 111 | mutex_lock(&clocks_mutex); |
111 | list_add(&clk->node, &clocks); | 112 | list_add(&clk->node, &clocks); |
112 | up(&clocks_sem); | 113 | mutex_unlock(&clocks_mutex); |
113 | return 0; | 114 | return 0; |
114 | } | 115 | } |
115 | EXPORT_SYMBOL(clk_register); | 116 | EXPORT_SYMBOL(clk_register); |
116 | 117 | ||
117 | void clk_unregister(struct clk *clk) | 118 | void clk_unregister(struct clk *clk) |
118 | { | 119 | { |
119 | down(&clocks_sem); | 120 | mutex_lock(&clocks_mutex); |
120 | list_del(&clk->node); | 121 | list_del(&clk->node); |
121 | up(&clocks_sem); | 122 | mutex_unlock(&clocks_mutex); |
122 | } | 123 | } |
123 | EXPORT_SYMBOL(clk_unregister); | 124 | EXPORT_SYMBOL(clk_unregister); |
124 | 125 | ||