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authorPaul Walmsley <paul@pwsan.com>2009-01-28 12:35:09 -0700
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-08 17:50:45 +0000
commitbe5f34b77355b9b1720a88390e51441ef578720b (patch)
tree73ad558c0d799e75178353f16e5d37390c26f746 /arch
parentf11fda6a9173e8e6b152ba5cb26fa20095a4c60f (diff)
[ARM] OMAP clock: drop clk_get_usecount()
This function is race-prone and mistakenly conveys the impression to drivers that it is part of the clock interface. Get rid of it: core code that absolutely needs this can just check clk->usecount. Drivers should not use it at all. linux-omap source commit is 5df9e4adc2f6a6d55aca53ee27b8baad18897c05. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/plat-omap/clock.c16
-rw-r--r--arch/arm/plat-omap/include/mach/clock.h1
2 files changed, 0 insertions, 17 deletions
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 6a1737a7447..9833d73511a 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -76,22 +76,6 @@ out:
}
EXPORT_SYMBOL(clk_disable);
-int clk_get_usecount(struct clk *clk)
-{
- unsigned long flags;
- int ret = 0;
-
- if (clk == NULL || IS_ERR(clk))
- return 0;
-
- spin_lock_irqsave(&clockfw_lock, flags);
- ret = clk->usecount;
- spin_unlock_irqrestore(&clockfw_lock, flags);
-
- return ret;
-}
-EXPORT_SYMBOL(clk_get_usecount);
-
unsigned long clk_get_rate(struct clk *clk)
{
unsigned long flags;
diff --git a/arch/arm/plat-omap/include/mach/clock.h b/arch/arm/plat-omap/include/mach/clock.h
index af6ae4fa46d..0ba28462a49 100644
--- a/arch/arm/plat-omap/include/mach/clock.h
+++ b/arch/arm/plat-omap/include/mach/clock.h
@@ -124,7 +124,6 @@ extern void clk_unregister(struct clk *clk);
extern void propagate_rate(struct clk *clk);
extern void recalculate_root_clocks(void);
extern void followparent_recalc(struct clk *clk);
-extern int clk_get_usecount(struct clk *clk);
extern void clk_enable_init_clocks(void);
#ifdef CONFIG_CPU_FREQ
extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table);