diff --git a/drivers/mfd/tps6105x.c b/drivers/mfd/tps6105x.c
index 0da1cecb5af6..e2f6858d101e 100644
--- a/drivers/mfd/tps6105x.c
+++ b/drivers/mfd/tps6105x.c
@@ -23,7 +23,7 @@
 #include <linux/mfd/core.h>
 #include <linux/mfd/tps6105x.h>
 
-static struct regmap_config tps6105x_regmap_config = {
+static const struct regmap_config tps6105x_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = TPS6105X_REG_3,