diff --git a/drivers/pinctrl/broadcom/pinctrl-bcm283x.c b/drivers/pinctrl/broadcom/pinctrl-bcm283x.c
index 49791c5..41da814 100644
--- a/drivers/pinctrl/broadcom/pinctrl-bcm283x.c
+++ b/drivers/pinctrl/broadcom/pinctrl-bcm283x.c
@@ -63,7 +63,7 @@
 int bcm283x_pinctrl_set_state(struct udevice *dev, struct udevice *config)
 {
 	u32 pin_arr[MAX_PINS_PER_BANK];
-	u32 function;
+	int function;
 	int i, len, pin_count = 0;
 
 	if (!dev_read_prop(config, "brcm,pins", &len) || !len ||