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Date:   Thu, 25 Aug 2022 11:13:24 +0300
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Subject: Re: [PATCH] dt-bindings: arm: mediatek: mmsys: change compatible for
 MT8195
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To:     Bo-Chen Chen <rex-bc.chen@mediatek.com>,
        "robh+dt@kernel.org" <robh+dt@kernel.org>,
        "krzysztof.kozlowski+dt@linaro.org" 
        <krzysztof.kozlowski+dt@linaro.org>,
        "matthias.bgg@gmail.com" <matthias.bgg@gmail.com>
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        <Jason-JH.Lin@mediatek.com>,
        =?UTF-8?B?TmFuY3kgTGluICjmnpfmrKPonqIp?= <Nancy.Lin@mediatek.com>,
        =?UTF-8?B?Q0sgSHUgKOiDoeS/iuWFiSk=?= <ck.hu@mediatek.com>,
        "chunkuang.hu@kernel.org" <chunkuang.hu@kernel.org>,
        "angelogioacchino.delregno@collabora.com" 
        <angelogioacchino.delregno@collabora.com>,
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        <linux-arm-kernel@lists.infradead.org>,
        "linux-mediatek@lists.infradead.org" 
        <linux-mediatek@lists.infradead.org>,
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References: <20220825055658.12429-1-rex-bc.chen@mediatek.com>
 <3ff08ae9-a4b6-2b74-23cb-69ea1d7e1033@linaro.org>
 <d5a00dc88bed1680caa8af895a1140324b9d079e.camel@mediatek.com>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <d5a00dc88bed1680caa8af895a1140324b9d079e.camel@mediatek.com>
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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