default or selected kernelversion does not have config value CONFIG_RTC_DRV_COH901331.
Result is shown for kernelversion 6.9.9
ST-Ericsson COH 901 331 RTC
modulename: rtc-coh901331.ko
configname: CONFIG_RTC_DRV_COH901331
Linux Kernel Configuration
└─>Device Drivers
└─>Real Time Clock
└─>ST-Ericsson COH 901 331 RTC
In linux kernel since version 2.6.32 (release Date: 2009-12-02)
If you say Y here you will get access to ST-Ericsson
COH 901 331 RTC clock found in some ST-Ericsson Mobile
Platforms.
This driver can also be built as a module. If so, the module
will be called "rtc-coh901331".
COH 901 331 RTC clock found in some ST-Ericsson Mobile
Platforms.
This driver can also be built as a module. If so, the module
will be called "rtc-coh901331".