diff --git a/drivers/regulator/s2mpa01.c b/drivers/regulator/s2mpa01.c
index 92f88753bfed..dc2105c619a6 100644
--- a/drivers/regulator/s2mpa01.c
+++ b/drivers/regulator/s2mpa01.c
@@ -212,7 +212,7 @@ ramp_disable:
 				  1 << enable_shift, 0);
 }
 
-static struct regulator_ops s2mpa01_ldo_ops = {
+static const struct regulator_ops s2mpa01_ldo_ops = {
 	.list_voltage		= regulator_list_voltage_linear,
 	.map_voltage		= regulator_map_voltage_linear,
 	.is_enabled		= regulator_is_enabled_regmap,
@@ -223,7 +223,7 @@ static struct regulator_ops s2mpa01_ldo_ops = {
 	.set_voltage_time_sel	= regulator_set_voltage_time_sel,
 };
 
-static struct regulator_ops s2mpa01_buck_ops = {
+static const struct regulator_ops s2mpa01_buck_ops = {
 	.list_voltage		= regulator_list_voltage_linear,
 	.map_voltage		= regulator_map_voltage_linear,
 	.is_enabled		= regulator_is_enabled_regmap,