Maxim MAX77650/77651 PMIC Support

modulename: max77650.ko

configname: CONFIG_MFD_MAX77650

Linux Kernel Configuration
└─>Device Drivers
└─>Multifunction device drivers
└─>Device Tree and Open Firmware support
└─>Maxim MAX77650/77651 PMIC Support
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Say Y here to add support for Maxim Semiconductor MAX77650 and
MAX77651 Power Management ICs. This is the core multifunction
driver for interacting with the device. The module name is
'max77650'. Additional drivers can be enabled in order to use
the following functionalities of the device: GPIO, regulator,
charger, LED, onkey.

source code: