+static
+struct gpio_charger_platform_data *gpio_charger_parse_dt(struct device *dev)
+{
+ struct device_node *np = dev->of_node;
+ struct gpio_charger_platform_data *pdata;
+ const char *chargetype;
+ enum of_gpio_flags flags;
+ int ret;
+
+ if (!np)
+ return ERR_PTR(-ENOENT);
+
+ pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+ if (!pdata)
+ return ERR_PTR(-ENOMEM);
+
+ pdata->name = np->name;
+
+ pdata->gpio = of_get_gpio_flags(np, 0, &flags);
+ if (pdata->gpio < 0) {
+ if (pdata->gpio != -EPROBE_DEFER)
+ dev_err(dev, "could not get charger gpio\n");
+ return ERR_PTR(pdata->gpio);
+ }
+
+ pdata->gpio_active_low = !!(flags & OF_GPIO_ACTIVE_LOW);
+
+ pdata->type = POWER_SUPPLY_TYPE_UNKNOWN;
+ ret = of_property_read_string(np, "charger-type", &chargetype);
+ if (ret >= 0) {
+ if (!strncmp("unknown", chargetype, 7))
+ pdata->type = POWER_SUPPLY_TYPE_UNKNOWN;
+ else if (!strncmp("battery", chargetype, 7))
+ pdata->type = POWER_SUPPLY_TYPE_BATTERY;
+ else if (!strncmp("ups", chargetype, 3))
+ pdata->type = POWER_SUPPLY_TYPE_UPS;
+ else if (!strncmp("mains", chargetype, 5))
+ pdata->type = POWER_SUPPLY_TYPE_MAINS;
+ else if (!strncmp("usb-sdp", chargetype, 7))
+ pdata->type = POWER_SUPPLY_TYPE_USB;
+ else if (!strncmp("usb-dcp", chargetype, 7))
+ pdata->type = POWER_SUPPLY_TYPE_USB_DCP;
+ else if (!strncmp("usb-cdp", chargetype, 7))
+ pdata->type = POWER_SUPPLY_TYPE_USB_CDP;
+ else if (!strncmp("usb-aca", chargetype, 7))
+ pdata->type = POWER_SUPPLY_TYPE_USB_ACA;
+ else
+ dev_warn(dev, "unknown charger type %s\n", chargetype);
+ }
+
+ return pdata;
+}
+