Re: [PATCH] arm64: dts: renesas: r8a7796: Add CMT device nodes

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Hi Daniel,

On Mon, Nov 19, 2018 at 11:26 AM Daniel Lezcano
<daniel.lezcano@xxxxxxxxxx> wrote:
> On 26/10/2018 10:25, Biju Das wrote:
> > This patch adds CMT{0|1|2|3} device nodes for r8a7796 SoC.
> >
> > Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx>
> > ---
> > This patch is tested against renesas-dev
> >
> > I have executed on inconsistency-check, nanosleep and clocksource_switch
> > selftests on this arm64 SoC. The inconsistency-check and nanosleep tests
> > are working fine.The clocksource_switch asynchronous test is failing due
> > to inconsistency-check failure on "arch_sys_counter".
> >
> > But if i skip the clocksource_switching of "arch_sys_counter", the
> > asynchronous test is passing for CMT0/1/2/3 timer.
> >
> > Has any one noticed this issue?
>
> So now that you mention that, I've been through the clocksource_switch
> on another ARM64 platform (hikey960) and disabled the
> ARM64_ERRATUM_858921 config option. I can see the same issue.
>
> Is this option set on your config ?

Note that r8a7796 does not have Cortex-A73, but A57/A53.
But let's wait for Biju's answer, to see if it makes a difference...

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds



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