linux-kernel - Re: [PATCH 1/3] dt-bindings: arm: qcom: Add sc7180 Chromebook board bindings

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Message-ID: <CAE-0n51fD6H2+JmFLMWyWuamcXDWzLQaXuWpnanvwO8rDQcuKQ@mail.gmail.com>
Date:   Thu, 12 May 2022 11:42:10 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Douglas Anderson <dianders@...omium.org>,
        Rob Herring <robh@...nel.org>
Cc:     Matthias Kaehlcke <mka@...omium.org>,
        Alexandru M Stan <amstan@...omium.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        "Joseph S . Barrera III" <joebar@...omium.org>,
        Julius Werner <jwerner@...omium.org>,
        Andy Gross <agross@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] dt-bindings: arm: qcom: Add sc7180 Chromebook board bindings

Quoting Douglas Anderson (2022-05-12 09:04:45)
> diff --git a/Documentation/devicetree/bindings/arm/qcom.yaml b/Documentation/devicetree/bindings/arm/qcom.yaml
> index 5c06d1bfc046..399be67eb5d2 100644
> --- a/Documentation/devicetree/bindings/arm/qcom.yaml
> +++ b/Documentation/devicetree/bindings/arm/qcom.yaml
> @@ -214,11 +214,191 @@ properties:
>                - qcom,ipq8074-hk10-c2
>            - const: qcom,ipq8074
>

Side note: The top of this file describes a scheme that is basically not
used by any compatibles in this file. I came up with that scheme many
years ago so that we could upstream DTS files but still be able to
generate the magic numbers that the bootloader picked DTBs by. I hope
nobody assumes that description applies to "google," prefixed
compatibles.

Can the description can be amended to indicate the "google," scheme with
rev and sku details? Or a bindings/arm/chrome.yaml file could be made
and all google prefix chromeos board compatibles could be put in there
regardless of SoC used.

> +      # Qualcomm Technologies, Inc. SC7180 IDP
>        - items:
>            - enum:
>                - qcom,sc7180-idp
>            - const: qcom,sc7180
>
> +      # Google CoachZ (rev1 - 2)

Can we follow the design of rockchip.yaml and also include the marketing
name (if published)? That helps folks match things up quicker.