AXP202/209 sysfs interface patch for axp20x MFD drvier in mainline kernel
➜ ~ % ls /sys/power/axp_pmu/{ac,vbus,battery,charger,pmu,control,ocv_curve}
/sys/power/axp_pmu/ocv_curve
/sys/power/axp_pmu/ac:
amperage connected used voltage
/sys/power/axp_pmu/battery:
amperage capacity charge charging connected power ts_voltage voltage
/sys/power/axp_pmu/charger:
amperage cell_activation charging low_power
/sys/power/axp_pmu/control:
battery_rdc disable_fuel_gauge