diff --git a/drivers/pinctrl/rockchip/pinctrl-rk3328.c b/drivers/pinctrl/rockchip/pinctrl-rk3328.c
index dd0dc2eff27..1834df6c3d1 100644
--- a/drivers/pinctrl/rockchip/pinctrl-rk3328.c
+++ b/drivers/pinctrl/rockchip/pinctrl-rk3328.c
@@ -330,7 +330,7 @@ static struct rockchip_pin_bank rk3328_pin_banks[] = {
 			     0),
 };
 
-static struct rockchip_pin_ctrl rk3328_pin_ctrl = {
+static const struct rockchip_pin_ctrl rk3328_pin_ctrl = {
 	.pin_banks		= rk3328_pin_banks,
 	.nr_banks		= ARRAY_SIZE(rk3328_pin_banks),
 	.grf_mux_offset		= 0x0,