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authorArjan van de Ven <arjan@infradead.org>2006-01-12 18:42:23 +0000
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-01-12 18:42:23 +0000
commit00431707be0cc1236ee08459367872b57da5be29 (patch)
tree0a57cbf54f1fcc9ef2852e68e96c3b99e1b903d8 /arch/arm/plat-omap
parentf4619025a51747a3788fd1bb6bdc46e368a889a7 (diff)
[ARM] Convert some arm semaphores to mutexes
The arm clock semaphores are strict mutexes, convert them to the new mutex implementation Signed-off-by: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-omap')
-rw-r--r--arch/arm/plat-omap/clock.c15
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 84fd65656fc..7ebc5a29db8 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -20,6 +20,7 @@
#include <linux/err.h>
#include <linux/string.h>
#include <linux/clk.h>
+#include <linux/mutex.h>
#include <asm/io.h>
#include <asm/semaphore.h>
@@ -27,7 +28,7 @@
#include <asm/arch/clock.h>
LIST_HEAD(clocks);
-static DECLARE_MUTEX(clocks_sem);
+static DEFINE_MUTEX(clocks_mutex);
DEFINE_SPINLOCK(clockfw_lock);
static struct clk_functions *arch_clock;
@@ -40,14 +41,14 @@ struct clk * clk_get(struct device *dev, const char *id)
{
struct clk *p, *clk = ERR_PTR(-ENOENT);
- down(&clocks_sem);
+ mutex_lock(&clocks_mutex);
list_for_each_entry(p, &clocks, node) {
if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
clk = p;
break;
}
}
- up(&clocks_sem);
+ mutex_unlock(&clocks_mutex);
return clk;
}
@@ -249,11 +250,11 @@ void propagate_rate(struct clk * tclk)
int clk_register(struct clk *clk)
{
- down(&clocks_sem);
+ mutex_lock(&clocks_mutex);
list_add(&clk->node, &clocks);
if (clk->init)
clk->init(clk);
- up(&clocks_sem);
+ mutex_unlock(&clocks_mutex);
return 0;
}
@@ -261,9 +262,9 @@ EXPORT_SYMBOL(clk_register);
void clk_unregister(struct clk *clk)
{
- down(&clocks_sem);
+ mutex_lock(&clocks_mutex);
list_del(&clk->node);
- up(&clocks_sem);
+ mutex_unlock(&clocks_mutex);
}
EXPORT_SYMBOL(clk_unregister);