diff options
Diffstat (limited to 'drivers/clk')
-rw-r--r-- | drivers/clk/clk.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 31d73c028c..c67b2f4e48 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -104,9 +104,19 @@ unsigned long clk_get_rate(struct clk *clk) long clk_round_rate(struct clk *clk, unsigned long rate) { + unsigned long parent_rate = 0; + struct clk *parent; + if (IS_ERR(clk)) return 0; + parent = clk_get_parent(clk); + if (parent) + parent_rate = clk_get_rate(parent); + + if (clk->ops->round_rate) + return clk->ops->round_rate(clk, rate, &parent_rate); + return clk_get_rate(clk); } |