[PATCH 03/15] rtc: nct3018y: fix incorrect maximum clock rate handling

[Brian Masney]

When nct3018y_clkout_round_rate() is called with a requested rate higher
than the highest supported rate, it currently returns 0, which disables
the clock. According to the clk API, round_rate() should instead return
the highest supported rate. Update the function to return the maximum
supported rate in this case.

Fixes: 5adbaed16cc63 ("rtc: Add NCT3018Y real time clock driver")
Signed-off-by: Brian Masney <bmasney at redhat.com>
---
 drivers/rtc/rtc-nct3018y.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-nct3018y.c b/drivers/rtc/rtc-nct3018y.c
index 76c5f464b2daeb59fa8367bff3ad261ed75dd937..cea05fca0bccddc6384c462cf1ebdc59b377a24d 100644
--- a/drivers/rtc/rtc-nct3018y.c
+++ b/drivers/rtc/rtc-nct3018y.c
@@ -376,7 +376,7 @@ static long nct3018y_clkout_round_rate(struct clk_hw *hw, unsigned long rate,
 		if (clkout_rates[i] <= rate)
 			return clkout_rates[i];
 
-	return 0;
+	return clkout_rates[0];
 }
 
 static int nct3018y_clkout_set_rate(struct clk_hw *hw, unsigned long rate,

-- 
2.50.0