[PATCH 2/2] clocksource/drivers/timer-ti-dm: Handle dra7 timer wrap errata i940

Tony Lindgren tony at atomide.com
Mon Mar 22 10:17:19 GMT 2021


Hi,

* Daniel Lezcano <daniel.lezcano at linaro.org> [210322 10:16]:
> On 04/03/2021 08:37, Tony Lindgren wrote:
> > There is a timer wrap issue on dra7 for the ARM architected timer.
> > In a typical clock configuration the timer fails to wrap after 388 days.
> > 
> > To work around the issue, we need to use timer-ti-dm percpu timers instead.
> > 
> > Let's configure dmtimer3 and 4 as percpu timers by default, and warn about
> > the issue if the dtb is not configured properly.
> > 
> > Let's do this as a single patch so it can be backported to v5.8 and later
> > kernels easily. 
> 
> Cc: <stable at vger.kernel.org> # v5.8+
> 
> ??

Yes please, that would be great.

Thanks,

Tony



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