linux-kernel - Re: [PATCH v2 2/4] dt-bindings: arm: qcom: Add sc7180 Chromebook board bindings

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Message-ID: <Yn6wjblZJ81R0Aiv@google.com>
Date:   Fri, 13 May 2022 12:25:01 -0700
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Douglas Anderson <dianders@...omium.org>
Cc:     Rob Herring <robh@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stephen Boyd <swboyd@...omium.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        Rajendra Nayak <quic_rjendra@...cinc.com>,
        Alexandru M Stan <amstan@...omium.org>,
        Julius Werner <jwerner@...omium.org>,
        "Joseph S . Barrera III" <joebar@...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 v2 2/4] dt-bindings: arm: qcom: Add sc7180 Chromebook
 board bindings

On Fri, May 13, 2022 at 09:59:18AM -0700, Douglas Anderson wrote:
> This copy-pastes compatibles from sc7180-based boards from the device
> trees to the yaml file so that `make dtbs_check` will be happy.
> 
> NOTES:
> - I make no attempt to try to share an "item" for all sc7180 based
>   Chromebooks. Because of the revision matching scheme used by the
>   Chromebook bootloader, at times we need a different number of
>   revisions listed.
> - Some of the odd entries in here (like google,homestar-rev23 or the
>   fact that "Google Lazor Limozeen without Touchscreen" changed from
>   sku5 to sku6) are not typos but simply reflect reality.
> - Many revisions of boards here never actually went to consumers, but
>   they are still in use within various companies that were involved in
>   Chromebook development. Since Chromebooks are developed with an
>   "upstream first" methodology, having these revisions supported with
>   upstream Linux is important. Making it easy for Chromebooks to be
>   developed with an "upstream first" methodology is valuable to the
>   upstream community because it improves the quality of upstream and
>   gets Chromebooks supported with vanilla upstream faster.
> 
> This patch also adds a link to the Chromebook boot flow documentation
> to explain that Chromebooks don't use the scheme described for the
> Qualcomm bootloader.
> 
> Signed-off-by: Douglas Anderson <dianders@...omium.org>

Reviewed-by: Matthias Kaehlcke <mka@...omium.org>