default or selected kernelversion does not have config value CONFIG_RADIO_WL128X.
Result is shown for kernelversion 6.9.9

Texas Instruments WL128x FM Radio

modulename: fm_drv.ko

configname: CONFIG_RADIO_WL128X

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>Media drivers
└─>Radio Adapters
└─>GPIO Support
└─>Texas Instruments WL128x FM Radio
In linux kernel since version 2.6.39 (release Date: 2011-05-18)  
Choose Y here if you have this FM radio chip.

In order to control your radio card, you will need to use programs
that are compatible with the Video For Linux 2 API. Information on
this API and pointers to "v4l2" programs may be found at
<file:Documentation/userspace-api/media/index.rst>.

source code: