linux-kernel - Re: [PATCH] dt-bindings: arm: mediatek: mmsys: change compatible for MT8195

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Date:   Thu, 25 Aug 2022 11:13:24 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Bo-Chen Chen <rex-bc.chen@...iatek.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>
Cc:     Jason-JH Lin (林睿祥) 
        <Jason-JH.Lin@...iatek.com>,
        Nancy Lin (林欣螢) <Nancy.Lin@...iatek.com>,
        CK Hu (胡俊光) <ck.hu@...iatek.com>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "hsinyi@...gle.com" <hsinyi@...gle.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [PATCH] dt-bindings: arm: mediatek: mmsys: change compatible for
 MT8195

On 25/08/2022 09:59, Bo-Chen Chen wrote:
> 
> Hello Krzysztof,
> 
> Thanks for yor review.
> 
> From the functions perspective:
> 
> Hardware pipeline of VDOSYS0 has these components: COLOR, CCORR, AAL,
> GAMMA, DITHER.
> They are related to PQ (Picture Quality) functions and they makes
> VDOSYS0 supports PQ function while they are not including in VDOSYS1.
> 
> Hardware pipeline of VDOSYS1 has the component ETHDR (HDR related
> component).
> It makes VDOSYS1 supports the HDR function while it's not including in
> VDOSYS0.
> 
> About mediatek ETHDR, you can refer to this series:
> 
> https://lore.kernel.org/all/20220819061456.8042-2-nancy.lin@mediatek.com/
> 
> To summary:
> Only VDOSYS0 can support PQ adjustment.
> Only VDOSYS1 can support HDR adjustment.
> 
> Is this description ok for you?
> If it is ok, I will put them into commit message in next version.
> 

Yes.

Best regards,
Krzysztof