linux-kernel - Re: [PATCH v2 3/3] dt-bindings: mediatek: add ethdr definition for mt8195

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Date:   Wed, 11 May 2022 10:29:13 +0800
From:   Rex-BC Chen <rex-bc.chen@...iatek.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        "AngeloGioacchino Del Regno" 
        <angelogioacchino.delregno@...labora.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>
CC:     "airlied@...ux.ie" <airlied@...ux.ie>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        Jason-JH Lin (林睿祥) 
        <Jason-JH.Lin@...iatek.com>,
        Nancy Lin (林欣螢) 
        <Nancy.Lin@...iatek.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [PATCH v2 3/3] dt-bindings: mediatek: add ethdr definition for
 mt8195

On Tue, 2022-05-10 at 19:19 +0800, Krzysztof Kozlowski wrote:
> On 10/05/2022 03:46, Rex-BC Chen wrote:
> > > 
> > > 
> > > That's mediatek-drm, and this refers to the HDR block in the
> > > display
> > > IP...
> > > 
> > > Though, I have no idea of what "ET" stands for in "ETHDR", so, it
> > > would be
> > > definitely nice if MediaTek can write the meaning in the
> > > description,
> > > like
> > > 
> > > description:
> > >    ETHDR (E??? T??? High Dynamic Range) is designed for HDR video
> > > and
> > > ...blah
> > > 
> > > Cheers,
> > > Angelo
> > 
> > Hello Krzysztof and Angelo,
> > 
> > "ET" is actually meaningless.
> > ET is one of mediatek departments and it's where the engine from.
> > Therefore, I think we will add description like this:
> > > ETHDR (ET High Dynamic Range) is a MediaTek internal HDR engine
> > > and
> > > designed for HDR video...
> 
> Sure, sounds good, but then the node name should not have it. Please
> try
> to find some more generic name (DT spec gives examples). Could be
> display-controller, "hdr-engine", "isp".
> 
> 
> Best regards,
> Krzysztof

Hello Krzysztof,

Thanks for your suggestion.
We will use hdr-engine to name this node.
Thanks!

BRs,
Rex