default or selected kernelversion does not have config value CONFIG_AD2S120X.
Result is shown for kernelversion 6.2.5

Analog Devices ad2s120x driver

modulename: ad2s120x.ko

configname: CONFIG_AD2S120X

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Industrial I/O support
└─>SPI support
└─>Analog Devices ad2s120x driver
In linux kernel since version 2.6.38 (release Date: 2011-03-14)  
Say yes here to build support for Analog Devices spi resolver
to digital converters, ad2s1200 and ad2s1205, provides direct access
via sysfs.

source code: