[PATCH] ARM: OMAP3+: DPLL: stop reparenting to same parent if already done

From: Nishanth Menon
Date: Wed Feb 05 2014 - 04:04:56 EST

omap3_noncore_dpll_set_rate forces a reparent to the same clk_ref
for every call that takes place. This is an can be done only if a change
is detected.

Signed-off-by: Nishanth Menon <nm@xxxxxx>
arch/arm/mach-omap2/dpll3xxx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/arch/arm/mach-omap2/dpll3xxx.c
index 3185ced..d9bcbf7 100644
--- a/arch/arm/mach-omap2/dpll3xxx.c
+++ b/arch/arm/mach-omap2/dpll3xxx.c
@@ -525,7 +525,7 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate,
* stuff is inherited for free

- if (!ret)
+ if (!ret && clk_get_parent(hw->clk) != new_parent)
__clk_reparent(hw->clk, new_parent);

return 0;

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