1=== AB8500 Fuel Gauge Driver === 2 3AB8500 is a mixed signal multimedia and power management 4device comprising: power and energy-management-module, 5wall-charger, usb-charger, audio codec, general purpose adc, 6tvout, clock management and sim card interface. 7 8Fuelgauge support is part of energy-management-modules, other 9components of this module are: 10main-charger, usb-combo-charger and battery-temperature-monitoring. 11 12The properties below describes the node for fuelgauge driver. 13 14Required Properties: 15- compatible = This shall be: "stericsson,ab8500-fg" 16- battery = Shall be battery specific information 17 Example: 18 ab8500_fg { 19 compatible = "stericsson,ab8500-fg"; 20 battery = <&ab8500_battery>; 21 }; 22 23dependent node: 24 ab8500_battery: ab8500_battery { 25 }; 26 This node will provide information on 'thermistor interface' and 27 'battery technology type' used. 28 29Properties of this node are: 30thermistor-on-batctrl: 31 A boolean value indicating thermistor interface to battery 32 33 Note: 34 'btemp' and 'batctrl' are the pins interfaced for battery temperature 35 measurement, 'btemp' signal is used when NTC(negative temperature 36 coefficient) resister is interfaced external to battery whereas 37 'batctrl' pin is used when NTC resister is internal to battery. 38 39 Example: 40 ab8500_battery: ab8500_battery { 41 thermistor-on-batctrl; 42 }; 43 indicates: NTC resister is internal to battery, 'batctrl' is used 44 for thermal measurement. 45 46 The absence of property 'thermal-on-batctrl' indicates 47 NTC resister is external to battery and 'btemp' signal is used 48 for thermal measurement. 49 50battery-type: 51 This shall be the battery manufacturing technology type, 52 allowed types are: 53 "UNKNOWN" "NiMH" "LION" "LIPO" "LiFe" "NiCd" "LiMn" 54 Example: 55 ab8500_battery: ab8500_battery { 56 stericsson,battery-type = "LIPO"; 57 } 58 59