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clk: Skip fetching index for single parent clocks

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We don't need to fetch the parent index for clocks if they only
have one parent. Doing this also avoid an unnecessary allocation
for the parent cache.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Michael Turquette <mturquette@linaro.org>
This commit is contained in:
Stephen Boyd 2014-12-22 11:26:42 -08:00 committed by Michael Turquette
parent 2e9dcdae40
commit 4526e7b857
1 changed files with 1 additions and 1 deletions
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2
drivers/clk/clk.c
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@ -1390,7 +1390,7 @@ static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate)
}
/* try finding the new parent index */
if (parent) {
if (parent && clk->num_parents > 1) {
p_index = clk_fetch_parent_index(clk, parent);
if (p_index < 0) {
pr_debug("%s: clk %s can not be parent of clk %s\n",