default or selected kernelversion does not have config value CONFIG_CRYSTALHD.
Result is shown for kernelversion 6.5.1

Broadcom Crystal HD video decoder support

modulename: crystalhd.ko

configname: CONFIG_CRYSTALHD

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Broadcom Crystal HD video decoder support
In linux kernel since version 2.6.34 (release Date: 2010-05-16)  
Support for the Broadcom Crystal HD video decoder chipset

source code:
drivers/staging/crystalhd/