default or selected kernelversion does not have config value CONFIG_VIDEO_TDA9875.
Result is shown for kernelversion 5.4.69

Philips TDA9875 audio processor

modulename: tda9875.ko

configname: CONFIG_VIDEO_TDA9875

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>Video capture adapters
└─>Encoders/decoders and other helper chips
└─>I2C support
└─>Philips TDA9875 audio processor
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Support for tda9875 audio decoder chip found on some bt8xx boards.

To compile this driver as a module, choose M here: the
module will be called tda9875.

source code: