linux-kernel - Re: [PATCH v2] dt-bindings: firmware: qcom,scm: document SCM on QCS9100 SoC

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Message-ID: <172b46cf-4b2e-47e6-abbc-ebe79d69a458@quicinc.com>
Date: Mon, 29 Jul 2024 18:21:39 +0800
From: Tengfei Fan <quic_tengfan@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Rob Herring <robh@...nel.org>,
        "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        "Robert
 Marko" <robimarko@...il.com>,
        Das Srinagesh <quic_gurus@...cinc.com>
CC: <kernel@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] dt-bindings: firmware: qcom,scm: document SCM on
 QCS9100 SoC



On 7/9/2024 10:29 PM, Tengfei Fan wrote:
> Document scm compatible for QCS9100 SoC.
> QCS9100 is drived from SA8775p. Currently, both the QCS9100 and SA8775p
> platform use non-SCMI resource. In the future, the SA8775p platform will
> move to use SCMI resources and it will have new sa8775p-related device
> tree. Consequently, introduce "qcom,scm-qcs9100" to describe non-SCMI
> based SCM.
> 
> Signed-off-by: Tengfei Fan <quic_tengfan@...cinc.com>
> ---
> Introduce support for the QCS9100 SoC device tree (DTSI) and the
> QCS9100 RIDE board DTS. The QCS9100 is a variant of the SA8775p.
> While the QCS9100 platform is still in the early design stage, the
> QCS9100 RIDE board is identical to the SA8775p RIDE board, except it
> mounts the QCS9100 SoC instead of the SA8775p SoC.
> 
> The QCS9100 SoC DTSI is directly renamed from the SA8775p SoC DTSI, and
> all the compatible strings will be updated from "SA8775p" to "QCS9100".
> The QCS9100 device tree patches will be pushed after all the device tree
> bindings and device driver patches are reviewed.
> 
> The final dtsi will like:
> https://lore.kernel.org/linux-arm-msm/20240703025850.2172008-3-quic_tengfan@quicinc.com/
> 
> The detailed cover letter reference:
> https://lore.kernel.org/linux-arm-msm/20240703025850.2172008-1-quic_tengfan@quicinc.com/
> ---
> Changes in v2:
>    - Split huge patch series into different patch series according to
>      subsytems
>    - Update patch commit message
> 
> prevous disscussion here:
> [1] v1: https://lore.kernel.org/linux-arm-msm/20240703025850.2172008-1-quic_tengfan@quicinc.com/
> ---
>   Documentation/devicetree/bindings/firmware/qcom,scm.yaml | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
> index 2cc83771d8e7..3596ae0e0610 100644
> --- a/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
> +++ b/Documentation/devicetree/bindings/firmware/qcom,scm.yaml
> @@ -42,6 +42,7 @@ properties:
>             - qcom,scm-msm8996
>             - qcom,scm-msm8998
>             - qcom,scm-qcm2290
> +          - qcom,scm-qcs9100
>             - qcom,scm-qdu1000
>             - qcom,scm-sa8775p
>             - qcom,scm-sc7180
> 
> ---
> base-commit: 0b58e108042b0ed28a71cd7edf5175999955b233
> change-id: 20240709-document_qcs9100_scm_compatible-34ee68ff6e75
> 
> Best regards,

After considering the feedback provided on the subject, We have decided
to keep current SA8775p compatible and ABI compatibility in drivers.
Let's close this session and ignore the current patche here.
Thank you for your input.

-- 
Thx and BRs,
Tengfei Fan