Hi,

On Thu, Aug 25, 2016 at 03:19:56PM +0800, Wenyou Yang wrote:

Add the power supply's current max property,
POWER_SUPPLY_PROP_CURRENT_MAX.

[...]
  

-	chglev_pin = of_get_named_gpio_flags(np,
-				"active-semi,chglev-gpios", 0, &flags);
-
-	if (gpio_is_valid(chglev_pin)) {
-		gpio_set_value(chglev_pin,
-			       ((flags == OF_GPIO_ACTIVE_LOW) ? 0 : 1));
+	charger->chglev_gpio = devm_gpiod_get(dev,
+					      "active-semi,chglev", GPIOD_IN);
+	if (PTR_ERR(charger->chglev_gpio) == -EPROBE_DEFER) {
+		dev_info(dev, "probe retry requested for gpio \"chglev\"\n");
+		return -EPROBE_DEFER;
+	} else if (IS_ERR(charger->chglev_gpio)) {
+		dev_err(dev, "unable to claim gpio \"chglev\"\n");
+		charger->chglev_gpio = NULL;

Please also use devm_gpiod_get_optional() here (see previous patch).

-- Sebastian