add usb charge config

drivers/power/Kconfig

@@ -404,6 +404,14 @@ config BATTERY_RK30_ADC_FAC
         help
           Say Y to enable support for the battery on the RK30.
 
+config BATTERY_RK30_USB_CHARGE
+        tristate "RK30 USB CHARGE"
+        depends on BATTERY_RK30_ADC||BATTERY_RK30_ADC_FAC
+        default y
+        help
+          say Y to enable suspport for the USB battery charge
+
+
 config CHARGER_BQ2415X
 	tristate "TI BQ2415x battery charger driver"
 	depends on I2C

drivers/power/rk30_factory_adc_battery.c

@@ -2459,6 +2459,7 @@ err_sysfs:
 err_ac_failed:
 	power_supply_unregister(&data ->ac);
 
+err_usb_failed:
 err_battery_failed:
 	power_supply_unregister(&data ->bat);