linux-kernel - Re: [PATCH v2 1/2] dt-bindings: display/msm: dsi-controller-main: Fix deprecated QCM2290 compatible

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Date:   Fri, 17 Feb 2023 21:24:34 +0000
From:   Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        linux-arm-msm@...r.kernel.org, andersson@...nel.org,
        agross@...nel.org
Cc:     marijn.suijten@...ainline.org, Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Krishna Manikandan <quic_mkrishn@...cinc.com>,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt-bindings: display/msm: dsi-controller-main: Fix
 deprecated QCM2290 compatible

On 17/02/2023 21:23, Konrad Dybcio wrote:
> 
> 
> On 17.02.2023 22:20, Bryan O'Donoghue wrote:
>> On 17/02/2023 21:16, Konrad Dybcio wrote:
>>> Correct, but QCM2290 is not supported upstream yet.
>>>
>>> SM6115 (a different SoC) however is, but it used the qcm2290 compatible
>>> as it was a convenient hack to get the DSI host ID recognized based on
>>> the (identical-to-qcm2290) base register without additional driver changes.
>>> We're now trying to untangle that mess..
>>
>> Gand so what we want documented is:
>>
>> compatible = "qcom,qcs2290-dsi-ctrl", qcom,mdss-dsi-ctrl";
> qcm* yes, this became documented with your original cleanup
> 
>> compatible = "qcom,sm6115-dsi-ctrl", qcom,mdss-dsi-ctrl";
> and yes this became documented (well, in the DSI binding) in
> my other patch series and is finished being documented in this one
> 
>>
>> with the old compatible = "qcom,dsi-ctrl-6g-qcm2290"; clanger continuing to be deprecated.
> correct, we still have to note it but keep it deprecated
> 
> Konrad
>>
>> ---
>> bod

Cool.

That maps to my understanding & the intention of the deprecation.

---
bod