AXP202/209 sysfs interface patch for axp20x MFD drvier in mainline kernel     âžœ ~ % 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