Re: [patch 5/8] ntp: Make the RTC synchronization more reliable

From: Thomas Gleixner
Date: Mon Jan 11 2021 - 05:13:49 EST


On Tue, Dec 29 2020 at 20:41, Geert Uytterhoeven wrote:
> Hi Thomas,
>> Reported-by: Miroslav Lichvar <mlichvar@xxxxxxxxxx>
>> Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
>
> Thanks for your patch, which is now commit c9e6189fb03123a7 ("ntp: Make
> the RTC synchronization more reliable").
>
> Since this commit, the I2C RTC on the R-Car M2-W Koelsch development
> board is accessed every two seconds. Sticking a WARN() in the I2C
> activation path gives e.g.

Huch? Every two seconds? The timer is armed with 11 * 60 * NSEC_PER_SEC,
which is 11 minutes. Confused....

Thanks,

tglx