diff --git a/drivers/clk/sunxi-ng/ccu-sun8i-r40.c b/drivers/clk/sunxi-ng/ccu-sun8i-r40.c
index 984ad3f76b18..2f51ceab8016 100644
--- a/drivers/clk/sunxi-ng/ccu-sun8i-r40.c
+++ b/drivers/clk/sunxi-ng/ccu-sun8i-r40.c
@@ -1292,7 +1292,7 @@ static bool sun8i_r40_ccu_regmap_accessible_reg(struct device *dev,
 	return false;
 }
 
-static struct regmap_config sun8i_r40_ccu_regmap_config = {
+static const struct regmap_config sun8i_r40_ccu_regmap_config = {
 	.reg_bits	= 32,
 	.val_bits	= 32,
 	.reg_stride	= 4,