regulator: s2mps11: Move DTS parsing code to separate function

Refactor code for parsing DTS to increase a little code readability. The
behaviour should not change.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

drivers/regulator/s2mps11.c

@@ -565,12 +565,28 @@ static const struct regulator_desc s2mps14_regulators[] = {
 	regulator_desc_s2mps14_buck1235(5),
 };
 
+static int s2mps11_pmic_dt_parse(struct platform_device *pdev,
+		struct of_regulator_match *rdata, struct s2mps11_info *s2mps11)
+{
+	struct device_node *reg_np;
+
+	reg_np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
+	if (!reg_np) {
+		dev_err(&pdev->dev, "could not find regulators sub-node\n");
+		return -EINVAL;
+	}
+
+	of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num);
+	of_node_put(reg_np);
+
+	return 0;
+}
+
 static int s2mps11_pmic_probe(struct platform_device *pdev)
 {
 	struct sec_pmic_dev *iodev = dev_get_drvdata(pdev->dev.parent);
-	struct sec_platform_data *pdata = iodev->pdata;
+	struct sec_platform_data *pdata = NULL;
 	struct of_regulator_match *rdata = NULL;
-	struct device_node *reg_np = NULL;
 	struct regulator_config config = { };
 	struct s2mps11_info *s2mps11;
 	int i, ret = 0;
@@ -598,7 +614,8 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
 	};
 
 	if (!iodev->dev->of_node) {
-		if (pdata) {
+		if (iodev->pdata) {
+			pdata = iodev->pdata;
 			goto common_reg;
 		} else {
 			dev_err(pdev->dev.parent,
@@ -614,15 +631,9 @@ static int s2mps11_pmic_probe(struct platform_device *pdev)
 	for (i = 0; i < s2mps11->rdev_num; i++)
 		rdata[i].name = regulators[i].name;
 
-	reg_np = of_get_child_by_name(iodev->dev->of_node, "regulators");
-	if (!reg_np) {
-		dev_err(&pdev->dev, "could not find regulators sub-node\n");
-		ret = -EINVAL;
+	ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11);
+	if (ret)
 		goto out;
-	}
-
-	of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num);
-	of_node_put(reg_np);
 
 common_reg:
 	platform_set_drvdata(pdev, s2mps11);
@@ -633,7 +644,7 @@ common_reg:
 	for (i = 0; i < s2mps11->rdev_num; i++) {
 		struct regulator_dev *regulator;
 
-		if (!reg_np) {
+		if (pdata) {
 			config.init_data = pdata->regulators[i].initdata;
 			config.of_node = pdata->regulators[i].reg_node;
 		} else {