linux-kernel - Re: [RESEND v3 02/13] arm64: dts: mediatek: mt8195: add MDP3 nodes

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Date:   Mon, 16 Jan 2023 09:56:24 +0000
From:   Moudy Ho (何宗原) <Moudy.Ho@...iatek.com>
To:     "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "mchehab@...nel.org" <mchehab@...nel.org>,
        "krzysztof.kozlowski@...aro.org" <krzysztof.kozlowski@...aro.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>
CC:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Project_Global_Chrome_Upstream_Group 
        <Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: Re: [RESEND v3 02/13] arm64: dts: mediatek: mt8195: add MDP3 nodes

On Mon, 2023-01-16 at 10:17 +0100, Krzysztof Kozlowski wrote:
> On 16/01/2023 10:14, Moudy Ho (何宗原) wrote:
> > > > +		mdp3-fg0@...02000 {
> > > 
> > > Node names should be generic.
> > > 
> > 
> > 
https://urldefense.com/v3/__https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html*generic-names-recommendation__;Iw!!CTRNKA9wMg0ARbw!gmuIIk9pHTEGcVTtOXNeP3a8XUucoiTd5vTmxNK8lCHtytRDc3R8Eh44WOWNEUkJlv_pPCtg_DvPCHsCHNscg6_0cfJe$
> >  
> > >  
> > > 
> > > "0" suffix is definitely nothing generic. Drop such suffixes
> > > everywhere.
> > > Drop also "mdp3" prefix everywhere.
> > > 
> > > 
> > > Best regards,
> > > Krzysztof
> > > 
> > 
> > Hi Krzysztof,
> > 
> > May I uniformly name all MediaTek's media data path ver.3(MDP3)
> > nodes
> > as "mdp3@xxx"?
> 
> No, because it does not describe generic class of a device. Some
> nodes
> are probably quite specific, thus we do not have generic names for
> them,
> but then any prefixes are also not neeeded. If node is image-scaler,
> it
> is just image-scaler, not "mdp3-image-scaler". If node is video-codec 
> it
> is not mdp3-video-codec. etc.
> 
> Best regards,
> Krzysztof

Hi Krzysztof,

Appreciate for the explanation, refer to the generic names in the link
you mentioned, could I use "display" instead?

Regards,
Moudy