diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index e6b396e584f3a206fa9cac84dfcddef6e81ee130..36b3c266925d2f6cc644473f59675dea3d94d1f8 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1050,6 +1050,7 @@ static int sc16is7xx_probe(struct device *dev,
 		else
 			return PTR_ERR(s->clk);
 	} else {
+		clk_prepare_enable(s->clk);
 		freq = clk_get_rate(s->clk);
 	}