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

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Message-ID: <a158bca2-78bf-5b38-60fe-88118e8b4ad7@linaro.org>
Date:   Fri, 17 Feb 2023 12:35:52 +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 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>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        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 12:32, Konrad Dybcio wrote:
> 
> 
> On 17.02.2023 12:30, Krzysztof Kozlowski wrote:
>> On 17/02/2023 12:13, Konrad Dybcio wrote:
>>> SM6115 previously erroneously added just "qcom,dsi-ctrl-6g-qcm2290",
>>> without the generic fallback. Fix the deprecated binding to reflect
>>> that.
>>>
>>> Fixes: 0c0f65c6dd44 ("dt-bindings: msm: dsi-controller-main: Add compatible strings for every current SoC")
>>> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
>>> ---
>>> Depends on (and should have been a part of):
>>>
>>> https://lore.kernel.org/linux-arm-msm/20230213121012.1768296-1-konrad.dybcio@linaro.org/
>>>
>>> v1 -> v2:
>>> New patch
>>>
>>>  .../devicetree/bindings/display/msm/dsi-controller-main.yaml     | 1 -
>>>  1 file changed, 1 deletion(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
>>> index 41cdb631d305..ee19d780dea8 100644
>>> --- a/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
>>> +++ b/Documentation/devicetree/bindings/display/msm/dsi-controller-main.yaml
>>> @@ -37,7 +37,6 @@ properties:
>>>        - items:
>>
>> If this way stays, drop the items as it is just an enum.
>>
>>>            - enum:
>>>                - qcom,dsi-ctrl-6g-qcm2290
>>> -          - const: qcom,mdss-dsi-ctrl
>>
>> Wasn't then intention to deprecate both - qcm2290 and mdss - when used
>> alone?
> "qcom,dsi-ctrl-6g-qcm2290", "qcom,mdss-dsi-ctrl"
> 
> was never used. The only upstream usage of the 2290 compat
> is in sm6115.dtsi:
> 
> compatible = "qcom,dsi-ctrl-6g-qcm2290";
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/arch/arm64/boot/dts/qcom/sm6115.dtsi?h=next-20230217#n1221

I meant, that original commit wanted to deprecate:
compatible="qcom,dsi-ctrl-6g-qcm2290";
compatible="qcom,mdss-dsi-ctrl";

Best regards,
Krzysztof