Re: [PATCH] arm/arm64: dts: Drop "arm,armv8-pmuv3" compatible usage

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On Mon, Apr 15, 2024 at 12:05 PM Rob Herring <robh@xxxxxxxxxx> wrote:
>
> On Mon, Apr 15, 2024 at 11:52 AM Dmitry Baryshkov
> <dmitry.baryshkov@xxxxxxxxxx> wrote:
> >
> > On Mon, 15 Apr 2024 at 16:46, Bjorn Andersson <quic_bjorande@xxxxxxxxxxx> wrote:
> > >
> > > On Fri, Apr 12, 2024 at 05:28:51PM -0500, Rob Herring wrote:
> > > [..]
> > > >  arch/arm64/boot/dts/qcom/qcm2290.dtsi                | 2 +-
> > > >  arch/arm64/boot/dts/qcom/qdu1000.dtsi                | 2 +-
> > > >  arch/arm64/boot/dts/qcom/sdm630.dtsi                 | 2 +-
> > > >  arch/arm64/boot/dts/qcom/sdx75.dtsi                  | 2 +-
> > >
> > > Acked-by: Bjorn Andersson <andersson@xxxxxxxxxx>
> >
> > Note, we'd need to override PMU compatibles in sdm636.dtsi and
> > sdm660.dtsi. Ideally it should come as the same patch.
>
> Uh, that's an A for reuse, but an F for readability... It's sdm632 as
> well. Will drop sdm630.

Actually, aren't those Kryo cores just Cortex-A53 derivatives? So the
A53 PMU compatible is an improvement over the generic one still. We
can't just add kryo260-pmu compatibles because that breaks
compatibility. We could have a fallback, but then that introduces a
pattern we don't want.

Rob





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