ADC for the RN5T618/RC5T619 family of chips

modulename: rn5t618-adc.ko

configname: CONFIG_RN5T618_ADC

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
└─>Analog to digital converters
└─>ADC for the RN5T618/RC5T619 family of chips
In linux kernel since version 5.1 (release Date: 2019-05-05)  
Say yes here to build support for the integrated ADC inside the
RN5T618/619 series PMICs:

This driver can also be built as a module. If so, the module
will be called rn5t618-adc.

source code: