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

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Message-ID: <0989eef7-cd0e-324c-eef9-aa8500197b91@linaro.org>
Date:   Fri, 17 Feb 2023 22:23:27 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Bryan O'Donoghue <pure.logic@...us-software.ie>,
        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 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