diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-lh7a40x/clocks.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/arm/mach-lh7a40x/clocks.c b/arch/arm/mach-lh7a40x/clocks.c index 7530a95c15a6..4119f7ec3cfe 100644 --- a/arch/arm/mach-lh7a40x/clocks.c +++ b/arch/arm/mach-lh7a40x/clocks.c @@ -12,6 +12,7 @@ #include <asm/hardware.h> #include <asm/arch/clocks.h> #include <linux/err.h> +#include <linux/spinlock.h> struct module; struct icst525_params; @@ -80,14 +81,14 @@ unsigned int pclkfreq_get (void) /* ----- */ static LIST_HEAD(clocks); -static DECLARE_MUTEX(clocks_sem); +static DEFINE_SPINLOCK(clocks_lock); struct clk *clk_get (struct device *dev, const char *id) { struct clk *p; struct clk *clk = ERR_PTR(-ENOENT); - down (&clocks_sem); + spin_lock(&clocks_lock); list_for_each_entry (p, &clocks, node) { if (strcmp (id, p->name) == 0 && try_module_get(p->owner)) { @@ -95,7 +96,7 @@ struct clk *clk_get (struct device *dev, const char *id) break; } } - up (&clocks_sem); + spin_unlock(&clocks_lock); return clk; } @@ -175,18 +176,18 @@ static struct clk clcd_clk = { int clk_register (struct clk *clk) { - down (&clocks_sem); + spin_lock(&clocks_lock); list_add (&clk->node, &clocks); - up (&clocks_sem); + spin_unlock(&clocks_lock); return 0; } EXPORT_SYMBOL(clk_register); void clk_unregister (struct clk *clk) { - down (&clocks_sem); + spin_lock(&clocks_lock); list_del (&clk->node); - up (&clocks_sem); + spin_unlock(&clocks_lock); } EXPORT_SYMBOL(clk_unregister); |