diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 5c1bc4d5b662..04e85a6037c9 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -3227,7 +3227,9 @@ static int rockchip_pinctrl_parse_groups(struct device_node *np,
 	/* we do not check return since it's safe node passed down */
 	size /= sizeof(*list);
 	if (!size || size % 4)
-		return dev_err_probe(dev, -EINVAL, "wrong pins number or pins and configs should be by 4\n");
+		return dev_err_probe(dev, -EINVAL,
+				     "%pOF: rockchip,pins: expected one or more of <bank pin mux CONFIG>, got %d args instead\n",
+				     np, size);
 
 	grp->npins = size / 4;