default or selected kernelversion does not have config value CONFIG_DVB_LGDT3304.
Result is shown for kernelversion 5.4.229

LG Electronics LGDT3304

modulename: lgdt3304.ko

configname: CONFIG_DVB_LGDT3304

Linux Kernel Configuration
└─>Device Drivers
└─>Multimedia support
└─>DVB/ATSC adapters
└─>Customise DVB Frontends
└─>I2C support
└─>LG Electronics LGDT3304
In linux kernel since version 2.6.29 (release Date: 2009-03-23)  
An ATSC 8VSB and QAM64/256 tuner module. Say Y when you want
to support this frontend.

source code: