clk: sunxi-ng: Wait for lock when using fractional mode
Currently ccu_frac_helper_set_rate() doesn't wait for a lock bit to be
set before returning. Because of that, unstable clock may be used.
Add a wait for lock in the helper function.
Fixes: 89a3dfb78707 ("clk: sunxi-ng: Add fractional lib")
Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
diff --git a/drivers/clk/sunxi-ng/ccu_mult.c b/drivers/clk/sunxi-ng/ccu_mult.c
index ee5e962..12e0783 100644
--- a/drivers/clk/sunxi-ng/ccu_mult.c
+++ b/drivers/clk/sunxi-ng/ccu_mult.c
@@ -114,7 +114,8 @@ static int ccu_mult_set_rate(struct clk_hw *hw, unsigned long rate,
if (ccu_frac_helper_has_rate(&cm->common, &cm->frac, rate)) {
ccu_frac_helper_enable(&cm->common, &cm->frac);
- return ccu_frac_helper_set_rate(&cm->common, &cm->frac, rate);
+ return ccu_frac_helper_set_rate(&cm->common, &cm->frac,
+ rate, cm->lock);
} else {
ccu_frac_helper_disable(&cm->common, &cm->frac);
}