regulator: Simplify the implementation of tps65912_get_voltage_dcdc

Call tps65912_list_voltage_dcdc instead of duplicating the same code.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
index da00d88..b685757 100644
--- a/drivers/regulator/tps65912-regulator.c
+++ b/drivers/regulator/tps65912-regulator.c
@@ -506,33 +506,73 @@
 	return mode;
 }
 
+static int tps65912_list_voltage_dcdc(struct regulator_dev *dev,
+					unsigned selector)
+{
+	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
+	int range, voltage = 0, id = rdev_get_id(dev);
+
+	switch (id) {
+	case TPS65912_REG_DCDC1:
+		range = pmic->dcdc1_range;
+		break;
+	case TPS65912_REG_DCDC2:
+		range = pmic->dcdc2_range;
+		break;
+	case TPS65912_REG_DCDC3:
+		range = pmic->dcdc3_range;
+		break;
+	case TPS65912_REG_DCDC4:
+		range = pmic->dcdc4_range;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (range) {
+	case 0:
+		/* 0.5 - 1.2875V in 12.5mV steps */
+		voltage = tps65912_vsel_to_uv_range0(selector);
+		break;
+	case 1:
+		/* 0.7 - 1.4875V in 12.5mV steps */
+		voltage = tps65912_vsel_to_uv_range1(selector);
+		break;
+	case 2:
+		/* 0.5 - 2.075V in 25mV steps */
+		voltage = tps65912_vsel_to_uv_range2(selector);
+		break;
+	case 3:
+		/* 0.5 - 3.8V in 50mV steps */
+		voltage = tps65912_vsel_to_uv_range3(selector);
+		break;
+	}
+	return voltage;
+}
+
 static int tps65912_get_voltage_dcdc(struct regulator_dev *dev)
 {
 	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
 	struct tps65912 *mfd = pmic->mfd;
-	int id = rdev_get_id(dev), voltage = 0, range;
+	int id = rdev_get_id(dev);
 	int opvsel = 0, avsel = 0, sr, vsel;
 
 	switch (id) {
 	case TPS65912_REG_DCDC1:
 		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC1_OP);
 		avsel = tps65912_reg_read(mfd, TPS65912_DCDC1_AVS);
-		range = pmic->dcdc1_range;
 		break;
 	case TPS65912_REG_DCDC2:
 		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC2_OP);
 		avsel = tps65912_reg_read(mfd, TPS65912_DCDC2_AVS);
-		range = pmic->dcdc2_range;
 		break;
 	case TPS65912_REG_DCDC3:
 		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC3_OP);
 		avsel = tps65912_reg_read(mfd, TPS65912_DCDC3_AVS);
-		range = pmic->dcdc3_range;
 		break;
 	case TPS65912_REG_DCDC4:
 		opvsel = tps65912_reg_read(mfd, TPS65912_DCDC4_OP);
 		avsel = tps65912_reg_read(mfd, TPS65912_DCDC4_AVS);
-		range = pmic->dcdc4_range;
 		break;
 	default:
 		return -EINVAL;
@@ -545,25 +585,7 @@
 		vsel = opvsel;
 	vsel &= 0x3F;
 
-	switch (range) {
-	case 0:
-		/* 0.5 - 1.2875V in 12.5mV steps */
-		voltage = tps65912_vsel_to_uv_range0(vsel);
-		break;
-	case 1:
-		/* 0.7 - 1.4875V in 12.5mV steps */
-		voltage = tps65912_vsel_to_uv_range1(vsel);
-		break;
-	case 2:
-		/* 0.5 - 2.075V in 25mV steps */
-		voltage = tps65912_vsel_to_uv_range2(vsel);
-		break;
-	case 3:
-		/* 0.5 - 3.8V in 50mV steps */
-		voltage = tps65912_vsel_to_uv_range3(vsel);
-		break;
-	}
-	return voltage;
+	return tps65912_list_voltage_dcdc(dev, vsel);
 }
 
 static int tps65912_set_voltage_dcdc(struct regulator_dev *dev,
@@ -609,50 +631,6 @@
 	return tps65912_reg_write(mfd, reg, selector | value);
 }
 
-static int tps65912_list_voltage_dcdc(struct regulator_dev *dev,
-					unsigned selector)
-{
-	struct tps65912_reg *pmic = rdev_get_drvdata(dev);
-	int range, voltage = 0, id = rdev_get_id(dev);
-
-	switch (id) {
-	case TPS65912_REG_DCDC1:
-		range = pmic->dcdc1_range;
-		break;
-	case TPS65912_REG_DCDC2:
-		range = pmic->dcdc2_range;
-		break;
-	case TPS65912_REG_DCDC3:
-		range = pmic->dcdc3_range;
-		break;
-	case TPS65912_REG_DCDC4:
-		range = pmic->dcdc4_range;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	switch (range) {
-	case 0:
-		/* 0.5 - 1.2875V in 12.5mV steps */
-		voltage = tps65912_vsel_to_uv_range0(selector);
-		break;
-	case 1:
-		/* 0.7 - 1.4875V in 12.5mV steps */
-		voltage = tps65912_vsel_to_uv_range1(selector);
-		break;
-	case 2:
-		/* 0.5 - 2.075V in 25mV steps */
-		voltage = tps65912_vsel_to_uv_range2(selector);
-		break;
-	case 3:
-		/* 0.5 - 3.8V in 50mV steps */
-		voltage = tps65912_vsel_to_uv_range3(selector);
-		break;
-	}
-	return voltage;
-}
-
 static int tps65912_list_voltage_ldo(struct regulator_dev *dev,
 					unsigned selector)
 {