mfd: qcom-spmi-pmic: Use devm_of_platform_populate()

Usage of  devm_of_platform_populate() simplify driver code
by allowing to delete pmic_spmi_remove().
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/qcom-spmi-pmic.c

@@ -120,7 +120,6 @@ static const struct regmap_config spmi_regmap_config = {
 
 static int pmic_spmi_probe(struct spmi_device *sdev)
 {
-	struct device_node *root = sdev->dev.of_node;
 	struct regmap *regmap;
 
 	regmap = devm_regmap_init_spmi_ext(sdev, &spmi_regmap_config);
@@ -131,19 +130,13 @@ static int pmic_spmi_probe(struct spmi_device *sdev)
 	if (sdev->usid % 2 == 0)
 		pmic_spmi_show_revid(regmap, &sdev->dev);
 
-	return of_platform_populate(root, NULL, NULL, &sdev->dev);
-}
-
-static void pmic_spmi_remove(struct spmi_device *sdev)
-{
-	of_platform_depopulate(&sdev->dev);
+	return devm_of_platform_populate(&sdev->dev);
 }
 
 MODULE_DEVICE_TABLE(of, pmic_spmi_id_table);
 
 static struct spmi_driver pmic_spmi_driver = {
 	.probe = pmic_spmi_probe,
-	.remove = pmic_spmi_remove,
 	.driver = {
 		.name = "pmic-spmi",
 		.of_match_table = pmic_spmi_id_table,