Monolithic Power Systems MP2629 ADC and Battery charger

modulename: mp2629.ko

configname: CONFIG_MFD_MP2629

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>Monolithic Power Systems MP2629 ADC and Battery charger
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Select this option to enable support for Monolithic Power Systems
battery charger. This provides ADC, thermal and battery charger power
management functions.

source code:
drivers/mfd//mp2629.c