diff --git a/drivers/pinctrl/realtek/pinctrl-rtd.c b/drivers/pinctrl/realtek/pinctrl-rtd.c
index 7836a15afe44..b645277ac9a9 100644
--- a/drivers/pinctrl/realtek/pinctrl-rtd.c
+++ b/drivers/pinctrl/realtek/pinctrl-rtd.c
@@ -280,7 +280,7 @@ static const struct rtd_pin_sconfig_desc *rtd_pinctrl_find_sconfig(struct rtd_pi
 static int rtd_pconf_parse_conf(struct rtd_pinctrl *data,
 				unsigned int pinnr,
 				enum pin_config_param param,
-				enum pin_config_param arg)
+				unsigned int arg)
 {
 	const struct rtd_pin_config_desc *config_desc;
 	const struct rtd_pin_sconfig_desc *sconfig_desc;