[PATCH] arm64: dts: renesas: r8a77970: add SMP support

[Simon Horman]

On Thu, May 10, 2018 at 07:43:03PM +0300, Sergei Shtylyov wrote:
> Hello!
> 
> On 05/09/2018 10:05 PM, Simon Horman wrote:
> 
> >>>> Add the device node for the second Cortex-A53 CPU core.
> >>>>
> >>>> Based on the original (and large) patch by Daisuke Matsushita
> >>>> <daisuke.matsushita.ns at hitachi.com>.
> >>>>
> >>>> Signed-off-by: Vladimir Barinov <vladimir.barinov at cogentembedded.com>
> >>>> Signed-off-by: Sergei Shtylyov <sergei.shtylyov at cogentembedded.com>
> >>>
> >>> Dupe of https://patchwork.kernel.org/patch/10032875/
> >>
> >>    Sorry!
> >>    Not an exact dupe, though -- mine has clock/power #define's used,
> >> yours -- only bare #s. :-)
> >>
> >>> From series "[PATCH 0/2] arm64: dts: renesas: r8a77970: Add SMP Support"
> >>> (https://www.spinics.net/lists/linux-renesas-soc/msg19681.html)
> >>
> >>    Hmm... what's the fate of this series?
> > 
> > There is now a v2 of Geert's series which incorporates your enhancements.
> 
>    I suggested to respin it. :-)

Thanks, that would have been my suggestion too :)

> > I will apply that.
> 
>    Thank you.
>    For the record, I had better luck than Geert testing SMP on Eagle:
>    only CPU0 couldn't be offlined (and I was unable to find a
>    workaround), others could be on/ offlined w/o issues. As for
>    suspend/resume -- it did work but I could only test s2idle
>    (/sys/power/mem_sleep had no other variants)...

Thanks. Perhaps you have a more recent firmware than Geert.
I would expect the CPU0 issue you describe will be resolved in time in
the firmware.