linux-kernel - Re: [PATCH v3 3/3] dt-bindings: firmware: qcom: scm: Separate VMIDs from header to bindings

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Date:   Mon, 9 Jan 2023 10:54:25 +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>,
        Stephan Gerhold <stephan@...hold.net>,
        Loic Poulain <loic.poulain@...aro.org>
Subject: Re: [PATCH v3 3/3] dt-bindings: firmware: qcom: scm: Separate VMIDs
 from header to bindings

On 09/01/2023 10:39, Konrad Dybcio wrote:
> With changes to the rmtfs binding, secure VMIDs will become useful to
> have in device trees. Separate them out and add to include/dt-bindings.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
> ---
> v2 -> v3:
> New patch
> 
>  include/dt-bindings/firmware/qcom/scm.h | 16 ++++++++++++++++
>  include/linux/qcom_scm.h                |  7 ++-----
>  2 files changed, 18 insertions(+), 5 deletions(-)
>  create mode 100644 include/dt-bindings/firmware/qcom/scm.h
> 
> diff --git a/include/dt-bindings/firmware/qcom/scm.h b/include/dt-bindings/firmware/qcom/scm.h
> new file mode 100644
> index 000000000000..d66818cd57a8
> --- /dev/null
> +++ b/include/dt-bindings/firmware/qcom/scm.h
> @@ -0,0 +1,16 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */

Only Codeaurora folks contributed these numbers, thus we can relicense
it to dual-license, I believe.

The other topic is what do these numbers represent: hardware interface?
registers? offsets? firmware? IOW, why bindings is the place for them?
(usefulness for DTS is not the reason)


Best regards,
Krzysztof