On Mon, Nov 02, 2015 at 02:24:35PM +0900, Milo Kim wrote:

This looks mostly good, just a few fairly small things:

+lm363x_regulator_of_get_init_data(struct device *dev,
+			struct lm363x_regulator *lm363x_regulator, int id)
+{
+	struct device_node *np = dev->of_node;
+	int count;
+
+	count = of_regulator_match(dev, np, &lm363x_regulator_matches[id], 1);
+	if (count <= 0)
+		return ERR_PTR(-ENODEV);
+
+	return lm363x_regulator_matches[id].init_data;
+}

Don't open code DT matching, use of_match in the regulator_desc and let
the core do it for you.

+	/*
+	 * Check LCM_EN1/2_GPIO is configured.
+	 * Those pins are used for enabling VPOS/VNEG LDOs.
+	 */
+	if (id == LM3632_LDO_POS)
+		gpio = of_get_named_gpio(np, "ti,lcm-en1-gpio", 0);
+	else if (id == LM3632_LDO_NEG)
+		gpio = of_get_named_gpio(np, "ti,lcm-en2-gpio", 0);

This looks like it should be a switch statement.

+	rdev = regulator_register(&lm363x_regulator_desc[id], &cfg);
+	if (IS_ERR(rdev)) {

Use devm_regulator_register().

+static const struct of_device_id lm363x_regulator_of_match[] = {
+	{ .compatible = "ti,lm363x-regulator" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, lm363x_regulator_of_match);

You shouldn't need a compatible string for a device like this, the MFD
should just register a platform device based on the compatible string
for the MFD.