RTC clock doesnt work on FP3

• /e/ version:q
• Device model(s):~"FP3/FP3+"

Summary

A real-time clock (RTC) is a hardware clock, usually in the form of an integrated circuit that is solely built for keeping time. Naturally, it counts hours, minutes, seconds, months, days and even years.

The problem

It doesn't report correct date and time .

Steps to reproduce

Go to Settings > System > Date & Time

• Turn off "Use Network-Provided time"
• Set the time manually to a different time
• Turn off "Use Network-Provided time zone"
• Turn off use 24-hour format

What is the current behavior?

After reboot the clock shows wrong time

What is the expected correct behavior?

Correct time to be displayed by RTC system clock

Technical informations

$ adb shell /system/vendor/bin/hwclock   
Wed Jan 28 02:15:44 1970  0.000000 seconds

$ adb shell dmesg | grep rtc
[    6.194839] qcom,qpnp-rtc 200f000.qcom,spmi:qcom,pm8953@0:qcom,pm8953_rtc: rtc core: registered qpnp_rtc as rtc0
[    8.039849] qcom,qpnp-rtc 200f000.qcom,spmi:qcom,pm8953@0:qcom,pm8953_rtc: setting system clock to 1970-01-28 01:51:20 UTC (2339480)