| === AB8500 Fuel Gauge Driver === |
| |
| AB8500 is a mixed signal multimedia and power management |
| device comprising: power and energy-management-module, |
| wall-charger, usb-charger, audio codec, general purpose adc, |
| tvout, clock management and sim card interface. |
| |
| Fuelgauge support is part of energy-management-modules, other |
| components of this module are: |
| main-charger, usb-combo-charger and battery-temperature-monitoring. |
| |
| The properties below describes the node for fuelgauge driver. |
| |
| Required Properties: |
| - compatible = This shall be: "stericsson,ab8500-fg" |
| - battery = Shall be battery specific information |
| Example: |
| ab8500_fg { |
| compatible = "stericsson,ab8500-fg"; |
| battery = <&ab8500_battery>; |
| }; |
| |
| dependent node: |
| ab8500_battery: ab8500_battery { |
| }; |
| This node will provide information on 'thermistor interface' and |
| 'battery technology type' used. |
| |
| Properties of this node are: |
| thermistor-on-batctrl: |
| A boolean value indicating thermistor interface to battery |
| |
| Note: |
| 'btemp' and 'batctrl' are the pins interfaced for battery temperature |
| measurement, 'btemp' signal is used when NTC(negative temperature |
| coefficient) resister is interfaced external to battery whereas |
| 'batctrl' pin is used when NTC resister is internal to battery. |
| |
| Example: |
| ab8500_battery: ab8500_battery { |
| thermistor-on-batctrl; |
| }; |
| indicates: NTC resister is internal to battery, 'batctrl' is used |
| for thermal measurement. |
| |
| The absence of property 'thermal-on-batctrl' indicates |
| NTC resister is external to battery and 'btemp' signal is used |
| for thermal measurement. |
| |
| battery-type: |
| This shall be the battery manufacturing technology type, |
| allowed types are: |
| "UNKNOWN" "NiMH" "LION" "LIPO" "LiFe" "NiCd" "LiMn" |
| Example: |
| ab8500_battery: ab8500_battery { |
| stericsson,battery-type = "LIPO"; |
| } |
| |
