default or selected kernelversion does not have config value CONFIG_DS1302.
Result is shown for kernelversion 6.7-rc3

DS1302 RTC support

modulename: ds1302.ko

configname: CONFIG_DS1302

Linux Kernel Configuration
└─>Device Drivers
└─>Character devices
└─>DS1302 RTC support
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
If you say Y here and create a character special file /dev/rtc with
major number 121 and minor number 0 using mknod ("man mknod"), you
will get access to the real time clock (or hardware clock) built
into your computer.

source code: