linux-kernel - Re: [PATCH v4 3/3] dt-bindings: firmware: qcom: scm: Separate VMIDs from header to bindings

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Message-ID: <a81b8f5c-9d41-e612-8d77-abf280898c48@linaro.org>
Date:   Tue, 10 Jan 2023 11:11:48 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-arm-msm@...r.kernel.org, andersson@...nel.org,
        agross@...nel.org
Cc:     marijn.suijten@...ainline.org, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...ainline.org>,
        Loic Poulain <loic.poulain@...aro.org>,
        Stephan Gerhold <stephan@...hold.net>
Subject: Re: [PATCH v4 3/3] dt-bindings: firmware: qcom: scm: Separate VMIDs
 from header to bindings

On 09/01/2023 14:05, Konrad Dybcio wrote:
> The SCM VMIDs represent predefined mappings that come from the
> irreplaceable and non-omittable firmware that comes with every
> Qualcomm SoC (unless you steal engineering samples from the factory)
> and help clarify otherwise totally magic numbers which we are
> required to pass to the secure world for some parts of the SoC to
> work at all (with modem being the prime example).
> 
> On top of that, with changes to the rmtfs binding, secure VMIDs will
> become useful to have in device trees for readability. Separate them
> out and add to include/dt-bindings.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
> v3 -> v4:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof