Apollo Lake platform does not keep RTC time on reboot

[Wolfgang Kamp - datakamp]

Hi,

I found a problem with keeping RTC time on reboot or power off even if battery is connected.
The soc_get_rtc_failed routine in pmutil.c of apollolake SOC does not read and reset after read the General PM Configuration 1 register.
As a result RTC always failed.
Is there any Konfig what I overlooked or have soc_get_rtc_failed to be expanded?

Kind regards,
Wolfgang Kamp