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Message-ID: <0b608b1e-e7a0-0084-e691-6e957028dd90@linaro.org>
Date:   Mon, 28 Nov 2022 13:56:55 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Hector Martin <marcan@...can.st>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>
Cc:     Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Stephen Boyd <sboyd@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Marc Zyngier <maz@...nel.org>,
        Mark Kettenis <mark.kettenis@...all.nl>, asahi@...ts.linux.dev,
        linux-arm-kernel@...ts.infradead.org, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 2/4] dt-bindings: cpufreq: apple,soc-cpufreq: Add
 binding for Apple SoC cpufreq

On 28/11/2022 13:42, Hector Martin wrote:
> This binding represents the cpufreq/DVFS hardware present in Apple SoCs.
> The hardware has an independent controller per CPU cluster, and we
> represent them as unique nodes in order to accurately describe the
> hardware. The driver is responsible for binding them as a single cpufreq
> device (in the Linux cpufreq model).
> 
> Acked-by: Marc Zyngier <maz@...nel.org>
> Signed-off-by: Hector Martin <marcan@...can.st>
> ---
>  .../cpufreq/apple,cluster-cpufreq.yaml        | 117 ++++++++++++++++++
>  1 file changed, 117 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/cpufreq/apple,cluster-cpufreq.yaml
> 
> diff --git a/Documentation/devicetree/bindings/cpufreq/apple,cluster-cpufreq.yaml b/Documentation/devicetree/bindings/cpufreq/apple,cluster-cpufreq.yaml
> new file mode 100644
> index 000000000000..a21271f73fc1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/cpufreq/apple,cluster-cpufreq.yaml
> @@ -0,0 +1,117 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/cpufreq/apple,cluster-cpufreq.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Apple SoC cluster cpufreq device
> +
> +maintainers:
> +  - Hector Martin <marcan@...can.st>
> +
> +description: |
> +  Apple SoCs (e.g. M1) have a per-cpu-cluster DVFS controller that is part of
> +  the cluster management register block. This binding uses the standard
> +  operating-points-v2 table to define the CPU performance states, with the
> +  opp-level property specifying the hardware p-state index for that level.
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - items:
> +          - oneOf:

This is enum.

Any other changes? Your cover letter say quite unspecific "minor review
feedback"...

Best regards,
Krzysztof

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