Maxim MAX6620 fan controller

modulename: max6620.ko

configname: CONFIG_SENSORS_MAX6620

Linux Kernel Configuration
└─>Device Drivers
└─>Hardware Monitoring support
└─>Maxim MAX6620 fan controller
In linux kernel since version 5.2 (release Date: 2019-07-07)  
If you say yes here you get support for the MAX6620
fan controller.

This driver can also be built as a module. If so, the module
will be called max6620.

source code:
drivers/hwmon/max6620.c