regulator: Use tps65912_get_voltage for both DCDCs and LDOs

Now tps65912_get_voltage_dcdc and tps65912_get_voltage_ldo has exactly the same
implementation. We can merge them to tps65912_get_voltage function.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

drivers/regulator/tps65912-regulator.c

@@ -406,7 +406,7 @@ static int tps65912_list_voltage(struct regulator_dev *dev, unsigned selector)
 	return voltage;
 }
 
-static int tps65912_get_voltage_dcdc(struct regulator_dev *dev)
+static int tps65912_get_voltage(struct regulator_dev *dev)
 {
 	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
 	struct tps65912 *mfd = pmic->mfd;
@@ -438,21 +438,6 @@ static int tps65912_set_voltage_sel(struct regulator_dev *dev,
 	return tps65912_reg_write(mfd, reg, selector | value);
 }
 
-static int tps65912_get_voltage_ldo(struct regulator_dev *dev)
-{
-	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
-	struct tps65912 *mfd = pmic->mfd;
-	int id = rdev_get_id(dev);
-	int vsel = 0;
-	u8 reg;
-
-	reg = tps65912_get_sel_register(pmic, id);
-	vsel = tps65912_reg_read(mfd, reg);
-	vsel &= 0x3F;
-
-	return tps65912_vsel_to_uv_ldo(vsel);
-}
-
 /* Operations permitted on DCDCx */
 static struct regulator_ops tps65912_ops_dcdc = {
 	.is_enabled = tps65912_reg_is_enabled,
@@ -460,7 +445,7 @@ static struct regulator_ops tps65912_ops_dcdc = {
 	.disable = tps65912_reg_disable,
 	.set_mode = tps65912_set_mode,
 	.get_mode = tps65912_get_mode,
-	.get_voltage = tps65912_get_voltage_dcdc,
+	.get_voltage = tps65912_get_voltage,
 	.set_voltage_sel = tps65912_set_voltage_sel,
 	.list_voltage = tps65912_list_voltage,
 };
@@ -470,7 +455,7 @@ static struct regulator_ops tps65912_ops_ldo = {
 	.is_enabled = tps65912_reg_is_enabled,
 	.enable = tps65912_reg_enable,
 	.disable = tps65912_reg_disable,
-	.get_voltage = tps65912_get_voltage_ldo,
+	.get_voltage = tps65912_get_voltage,
 	.set_voltage_sel = tps65912_set_voltage_sel,
 	.list_voltage = tps65912_list_voltage,
 };