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authorMagnus Damm <damm@igel.co.jp>2008-10-31 20:13:32 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-12-22 18:42:50 +0900
commitd12cfac146d2b512496bf974b83ee1210032065f (patch)
treea46c31fc18fbfcfb78d3fb0643409b0865a313d0 /arch
parent4a4a9be3ebdbf17957d29e3521f328a1145f9431 (diff)
sh: enable and disable clocks recursively
Recurse and make sure parent clocks get enabled/disabled. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/sh/kernel/cpu/clock.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index b7e46d5bba4..717056b3d40 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -117,6 +117,11 @@ int clk_enable(struct clk *clk)
unsigned long flags;
int ret;
+ if (!clk)
+ return -EINVAL;
+
+ clk_enable(clk->parent);
+
spin_lock_irqsave(&clock_lock, flags);
ret = __clk_enable(clk);
spin_unlock_irqrestore(&clock_lock, flags);
@@ -147,9 +152,14 @@ void clk_disable(struct clk *clk)
{
unsigned long flags;
+ if (!clk)
+ return -EINVAL;
+
spin_lock_irqsave(&clock_lock, flags);
__clk_disable(clk);
spin_unlock_irqrestore(&clock_lock, flags);
+
+ clk_disable(clk->parent);
}
EXPORT_SYMBOL_GPL(clk_disable);