text: Device-Tree bindings for charger of Active-semi ACT8945A Multi-Function Device
  
  Required properties:
   - compatible: "active-semi,act8945a-charger".
   - active-semi,chglev-gpios: charge current level phandle with args
     as described in ../gpio/gpio.txt.
   - active-semi,lbo-gpios: specify the low battery voltage detect phandle
     with args as as described in ../gpio/gpio.txt.
   - interrupts: <a b> where a is the interrupt number and b is a
     field that represents an encoding of the sense and level
     information for the interrupt.
  
  Optional properties:
   - active-semi,input-voltage-threshold-microvolt: unit: mV;
     Specifies the charger's input over-voltage threshold value;
     The value can be: 6600, 7000, 7500, 8000; default: 6600
   - active-semi,precondition-timeout: unit: minutes;
     Specifies the charger's PRECONDITION safety timer setting value;
     The value can be: 40, 60, 80, 0; If 0, it means to disable this timer;
     default: 40.
   - active-semi,total-timeout: unit: hours;
     Specifies the charger's total safety timer setting value;
     The value can be: 3, 4, 5, 0; If 0, it means to disable this timer;
     default: 3.
  
  Example:
  	pmic@5b {
  		compatible = "active-semi,act8945a";
  		reg = <0x5b>;
  
  		charger {
  			compatible = "active-semi,act8945a-charger";
  			pinctrl-names = "default";
  			pinctrl-0 = <&pinctrl_charger_chglev &pinctrl_charger_lbo &pinctrl_charger_irq>;
  			interrupt-parent = <&pioA>;
  			interrupts = <45 GPIO_ACTIVE_LOW>;
  
  			active-semi,chglev-gpios = <&pioA 12 GPIO_ACTIVE_HIGH>;
  			active-semi,lbo-gpios = <&pioA 72 GPIO_ACTIVE_LOW>;
  			active-semi,input-voltage-threshold-microvolt = <6600>;
  			active-semi,precondition-timeout = <40>;
  			active-semi,total-timeout = <3>;
  		};
  	};
  