default or selected kernelversion does not have config value CONFIG_SERIAL_S3C2440.
Result is shown for kernelversion 6.2.5
Samsung S3C2440/S3C2442/S3C2416 Serial port support
modulename: s3c2440.ko
configname: CONFIG_SERIAL_S3C2440
Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>Serial drivers
└─>Samsung S3C2440/S3C2442/S3C2416 Serial port support
In linux kernel since version 2.6.27 (release Date: 2008-10-09)
Serial port support for the Samsung S3C2440, S3C2416 and S3C2442 SoC