From: Rob Herring <robh@kernel.org>
To: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Lorenzo Pieralisi <lpieralisi@kernel.org>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH] dt-bindings: arm: cpus: Deprecate Qualcomm generic compatibles
Date: Thu, 15 Jan 2026 14:13:21 -0600 [thread overview]
Message-ID: <20260115201321.GA1101678-robh@kernel.org> (raw)
In-Reply-To: <59ae6b16-7866-413a-a1d2-4a735024c108@oss.qualcomm.com>
On Thu, Jan 15, 2026 at 11:19:47AM +0100, Konrad Dybcio wrote:
> On 1/15/26 9:35 AM, Krzysztof Kozlowski wrote:
> > Move four compatibles for Qualcomm Krait, Kryo, Oryon and Scorpion
> > custom CPU cores out of the enum into separate one with deprecated: true
> > annotation, because these are too generic names.
> >
> > These are names of the families and there are significant differences
> > within individual processors, e.g. Kryo6xx can based on architectures
> > from Cortex-X2, A710, A510 to A78 and probably more.
> >
> > Just like other vendor processors are differentiated, also Qualcomm CPUs
> > should come with specific compatibles.
> >
> > Cc: Bjorn Andersson <andersson@kernel.org>
> > Cc: Konrad Dybcio <konradybcio@kernel.org>
> > Cc: linux-arm-msm@vger.kernel.org
> > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
> > ---
>
> [...]
>
> > - - arm,armv8 # Only for s/w models
>
> I'm still bitter about this one existing
>
> $ rg '"arm,armv8"' arch -l | sort
>
> arch/arm64/boot/dts/arm/foundation-v8.dtsi
>
> This makes some sense (see [1])
>
> arch/arm64/boot/dts/arm/fvp-base-revc.dts
> arch/arm64/boot/dts/arm/rtsm_ve-aemv8a.dts
>
> These seem to be spawned with a specific virtualized Cortex type
No, these are "generic" cores where arch features can be turned on/off
and configured.
>
> arch/arm64/boot/dts/nvidia/tegra264.dtsi
It's hard to keep new ones from sneaking in...
Rob
prev parent reply other threads:[~2026-01-15 20:13 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-15 8:35 [PATCH] dt-bindings: arm: cpus: Deprecate Qualcomm generic compatibles Krzysztof Kozlowski
2026-01-15 9:36 ` Dmitry Baryshkov
2026-01-15 9:45 ` Krzysztof Kozlowski
2026-01-15 10:19 ` Konrad Dybcio
2026-01-15 18:39 ` Krzysztof Kozlowski
2026-01-15 20:13 ` Rob Herring [this message]
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