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clk: cache parent clocks only for muxes

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caching parent clocks makes sense only when a clock has more
than one parent (mux clocks).
Avoid doing this for every other clock.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[mturquette@linaro.org: removed extra parentheses]
Signed-off-by: Mike Turquette <mturquette@linaro.org>
This commit is contained in:
Rajendra Nayak 2012-06-06 14:41:30 +05:30 committed by Mike Turquette
parent f05259a6ff
commit 9ca1c5a4bf
1 changed files with 2 additions and 2 deletions
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4
drivers/clk/clk.c
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@ -1235,8 +1235,8 @@ int __clk_init(struct device *dev, struct clk *clk)
* If clk->parents is not NULL we skip this entire block. This allows
* for clock drivers to statically initialize clk->parents.
*/
if (clk->num_parents && !clk->parents) {
clk->parents = kmalloc((sizeof(struct clk*) * clk->num_parents),
if (clk->num_parents > 1 && !clk->parents) {
clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents),
GFP_KERNEL);
/*
* __clk_lookup returns NULL for parents that have not been