AXP192 power management IC
A driver for the X-Powers AXP192 PMIC: DCDC1-3/LDO2-3/EXTEN rail enable and voltage
control, battery voltage/current/power readback, charge enable/status, and system power off.
Registers as a power-supply child device (voltage, current, is-charging, charge control,
power off) alongside its own public API for full rail control.
Also includes axp192-backlight: a BACKLIGHT_TYPE driver for a backlight wired to one of
the AXP192's rails, declared as a devicetree child node of the axp192 device it dims. Its
rail, min-millivolt and max-millivolt properties select the channel and map the 0-255
brightness level onto that rail's voltage range; brightness level 0 disables the rail outright.
License: Apache v2.0