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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2007-05-15 17:49:02 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-07-12 15:27:55 +0200 |
| commit | f4b6a0a401f2cec5e6199e805ed42f30d8c04e94 (patch) | |
| tree | 9664306af4981540cd41d622da8544d9c6ef6f4f /arch/arm/mach-pxa/clock.c | |
| parent | [ARM] pxa: remove useless pxa_pm_finish() function (diff) | |
| download | linux-f4b6a0a401f2cec5e6199e805ed42f30d8c04e94.tar.xz linux-f4b6a0a401f2cec5e6199e805ed42f30d8c04e94.zip | |
[ARM] pxa: use mutexes instead of semaphores
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-pxa/clock.c')
| -rw-r--r-- | arch/arm/mach-pxa/clock.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/arch/arm/mach-pxa/clock.c b/arch/arm/mach-pxa/clock.c index 8f7c90a0593b..34a31caa6f9d 100644 --- a/arch/arm/mach-pxa/clock.c +++ b/arch/arm/mach-pxa/clock.c @@ -12,7 +12,6 @@ #include <asm/arch/pxa-regs.h> #include <asm/hardware.h> -#include <asm/semaphore.h> struct clk { struct list_head node; @@ -25,21 +24,21 @@ struct clk { }; static LIST_HEAD(clocks); -static DECLARE_MUTEX(clocks_sem); +static DEFINE_MUTEX(clocks_mutex); static DEFINE_SPINLOCK(clocks_lock); 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; } @@ -101,18 +100,18 @@ static struct clk clk_gpio27 = { int clk_register(struct clk *clk) { - down(&clocks_sem); + mutex_lock(&clocks_mutex); list_add(&clk->node, &clocks); - up(&clocks_sem); + mutex_unlock(&clocks_mutex); return 0; } 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); |