regulator: da9052: Convert to regulator core's simplified DT parsing code

Use regulator core's simplified DT parsing code to simply the driver
implementation.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/da9052-regulator.c

@@ -294,6 +294,8 @@ static const struct regulator_ops da9052_ldo_ops = {
 {\
 	.reg_desc = {\
 		.name = #_name,\
+		.of_match = of_match_ptr(#_name),\
+		.regulators_node = of_match_ptr("regulators"),\
 		.ops = &da9052_ldo_ops,\
 		.type = REGULATOR_VOLTAGE,\
 		.id = DA9052_ID_##_id,\
@@ -314,6 +316,8 @@ static const struct regulator_ops da9052_ldo_ops = {
 {\
 	.reg_desc = {\
 		.name = #_name,\
+		.of_match = of_match_ptr(#_name),\
+		.regulators_node = of_match_ptr("regulators"),\
 		.ops = &da9052_dcdc_ops,\
 		.type = REGULATOR_VOLTAGE,\
 		.id = DA9052_ID_##_id,\
@@ -417,36 +421,11 @@ static int da9052_regulator_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	config.dev = &pdev->dev;
+	config.dev = da9052->dev;
 	config.driver_data = regulator;
 	config.regmap = da9052->regmap;
-	if (pdata) {
+	if (pdata)
 		config.init_data = pdata->regulators[cell->id];
-	} else {
-#ifdef CONFIG_OF
-		struct device_node *nproot = da9052->dev->of_node;
-		struct device_node *np;
-
-		if (!nproot)
-			return -ENODEV;
-
-		nproot = of_get_child_by_name(nproot, "regulators");
-		if (!nproot)
-			return -ENODEV;
-
-		for_each_child_of_node(nproot, np) {
-			if (of_node_name_eq(np,
-					 regulator->info->reg_desc.name)) {
-				config.init_data = of_get_regulator_init_data(
-					&pdev->dev, np,
-					&regulator->info->reg_desc);
-				config.of_node = np;
-				break;
-			}
-		}
-		of_node_put(nproot);
-#endif
-	}
 
 	regulator->rdev = devm_regulator_register(&pdev->dev,
 						  &regulator->info->reg_desc,