diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c
index a1eae45f5fee..b34ad85db771 100644
--- a/drivers/regulator/mt6358-regulator.c
+++ b/drivers/regulator/mt6358-regulator.c
@@ -123,10 +123,13 @@ struct mt6358_regulator_info {
 		.type = REGULATOR_VOLTAGE,	\
 		.id = MT6358_ID_##vreg,	\
 		.owner = THIS_MODULE,	\
-		.n_voltages = 1,	\
+		.n_voltages = 11,	\
+		.vsel_reg = MT6358_##vreg##_ANA_CON0,	\
+		.vsel_mask = GENMASK(3, 0),	\
 		.enable_reg = enreg,	\
 		.enable_mask = BIT(enbit),	\
 		.min_uV = volt,	\
+		.uV_step = 10000, \
 	},	\
 	.status_reg = MT6358_LDO_##vreg##_CON1,	\
 	.qi = BIT(15),							\
@@ -219,10 +222,13 @@ struct mt6358_regulator_info {
 		.type = REGULATOR_VOLTAGE,	\
 		.id = MT6366_ID_##vreg,	\
 		.owner = THIS_MODULE,	\
-		.n_voltages = 1,	\
+		.n_voltages = 11,	\
+		.vsel_reg = MT6358_##vreg##_ANA_CON0,	\
+		.vsel_mask = GENMASK(3, 0),	\
 		.enable_reg = enreg,	\
 		.enable_mask = BIT(enbit),	\
 		.min_uV = volt,	\
+		.uV_step = 10000, \
 	},	\
 	.status_reg = MT6358_LDO_##vreg##_CON1,	\
 	.qi = BIT(15),							\
@@ -476,8 +482,13 @@ static const struct regulator_ops mt6358_volt_table_ops = {
 	.get_status = mt6358_get_status,
 };
 
+/* "Fixed" LDOs with output voltage calibration +0 ~ +10 mV */
 static const struct regulator_ops mt6358_volt_fixed_ops = {
 	.list_voltage = regulator_list_voltage_linear,
+	.map_voltage = regulator_map_voltage_linear,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = mt6358_get_buck_voltage_sel,
+	.set_voltage_time_sel = regulator_set_voltage_time_sel,
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
 	.is_enabled = regulator_is_enabled_regmap,
diff --git a/include/linux/mfd/mt6358/registers.h b/include/linux/mfd/mt6358/registers.h
index 3d33517f178c..5ea2590be710 100644
--- a/include/linux/mfd/mt6358/registers.h
+++ b/include/linux/mfd/mt6358/registers.h
@@ -262,6 +262,12 @@
 #define MT6358_LDO_VBIF28_CON3                0x1db0
 #define MT6358_VCAMA1_ANA_CON0                0x1e08
 #define MT6358_VCAMA2_ANA_CON0                0x1e0c
+#define MT6358_VFE28_ANA_CON0                 0x1e10
+#define MT6358_VCN28_ANA_CON0                 0x1e14
+#define MT6358_VBIF28_ANA_CON0                0x1e18
+#define MT6358_VAUD28_ANA_CON0                0x1e1c
+#define MT6358_VAUX18_ANA_CON0                0x1e20
+#define MT6358_VXO22_ANA_CON0                 0x1e24
 #define MT6358_VCN33_ANA_CON0                 0x1e28
 #define MT6358_VSIM1_ANA_CON0                 0x1e2c
 #define MT6358_VSIM2_ANA_CON0                 0x1e30