linux-kernel - Re: [PATCH 1/2] dt-bindings: soc: mediatek: add mdp3 mutex support for mt8186

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Date:   Thu, 7 Jul 2022 12:41:44 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Allen-KH Cheng <allen-kh.cheng@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>
Cc:     Project_Global_Chrome_Upstream_Group@...iatek.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        Xiandong Wang <xiandong.wang@...iatek.com>
Subject: Re: [PATCH 1/2] dt-bindings: soc: mediatek: add mdp3 mutex support
 for mt8186



On 07/07/2022 10:52, AngeloGioacchino Del Regno wrote:
> Il 05/07/22 14:26, Allen-KH Cheng ha scritto:
>> Add mdp3 mutex compatible for mt8186 SoC.
>>
>> Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>
>> Signed-off-by: Xiandong Wang <xiandong.wang@...iatek.com>
> 
> 
> Please drop this commit. Adding a mdp3-mutex compatible is not needed here.
> 

Thanks for checking. We probably would need a fallback compatible. We can only 
know from the HW engineers that can confirm if the IP block is the same as the 
disp mutex or a different one.

I'll drop both patches for now until things got clear.

Regards,
Matthias

>> ---
>>   .../devicetree/bindings/soc/mediatek/mediatek,mutex.yaml         | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git 
>> a/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml 
>> b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
>> index 627dcc3e8b32..234fa5dc07c2 100644
>> --- a/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
>> +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
>> @@ -30,6 +30,7 @@ properties:
>>         - mediatek,mt8173-disp-mutex
>>         - mediatek,mt8183-disp-mutex
>>         - mediatek,mt8186-disp-mutex
>> +      - mediatek,mt8186-mdp3-mutex
>>         - mediatek,mt8192-disp-mutex
>>         - mediatek,mt8195-disp-mutex
> 
> 
>