bq2477x charger 
~~~~~~~~~~~~~~~ 
 
Required properties : 
 - compatible : should contain "ti,bq2477x". 
 - ti,dac-ichg : Charge current that must be programmed 
 - ti,dac-v : The maximum charge voltage that must be programmed 
 - ti,dac-minsv : The minimum System voltage that must be programmed 
 - ti,dac-iin : The input current that must be programmed 
 - ti,wdt-refresh-timeout : watch dog timer that must be programmed 
 - ti,charger-detect-gpio : a GPIO spec for AC adapter detection. The flag 
        that determines if AC adapter presence is indicated by active low. 
        Set this to GPIO_ACTIVE_LOW if active low indicates adapter is present, 
        else GPIO_ACTIVE_HIGH. 
 
Example: 
 
        bq2477x@6a { 
                compatible = "ti,bq2477x"; 
                reg = <0x6a>; 
                ti,dac-ichg = <2240>; 
                ti,dac-v = <9008>; 
                ti,dac-minsv = <4608>; 
                ti,dac-iin = <4992>; 
                ti,wdt-refresh-timeout = <40>; 
                ti,charger-detect-gpio = <&gpio TEGRA_GPIO(J, 0) GPIO_ACTIVE_LOW>; 
         };