linux-kernel - Re: [PATCH v3] dt-bindings: net: ftgmac100: convert to yaml version from txt

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Date:   Fri, 4 Aug 2023 22:23:09 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Jakub Kicinski <kuba@...nel.org>
Cc:     Ivan Mikhaylov <fr0st61te@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Po-Yu Chuang <ratbert@...aday-tech.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Conor Dooley <conor+dt@...nel.org>
Subject: Re: [PATCH v3] dt-bindings: net: ftgmac100: convert to yaml version
 from txt

On Fri, Aug 04, 2023 at 01:20:34PM -0700, Jakub Kicinski wrote:
> CC: Conor 
> 
> in case the missing CC is the reason for higher than usual 
> review latency :)

You even CCed the +dt address so the mail ended up in the right place!
I doubt not having me on CC is the reason for the delay, seems to be a
pattern that the conversion patches end up being Rob's to look at. I at
least find them more difficult to review than new bindings.

It looks like Rob's comments on v(N-1) were resolved, but something here
looks odd to me.

> > +  clocks:
> > +    minItems: 1
> > +    items:
> > +      - description: MAC IP clock
> > +      - description: RMII RCLK gate for AST2500/2600
> > +
> > +  clock-names:
> > +    minItems: 1
> > +    maxItems: 2
> > +    contains:
> > +      enum:
> > +        - MACCLK
> > +        - RCLK

I don't really understand the pattern being used here.

> > -- clocks: In accordance with the generic clock bindings. Must describe the MAC
> > -  IP clock, and optionally an RMII RCLK gate for the AST2500/AST2600. The
> > -  required MAC clock must be the first cell.

The order in the original binding was strict & the MAC clock had to come
first. What's in the new yaml one is more permissive & I think it should
be

  clock-names:
    minItems: 1
    items:
      - const: MACCLK
      - const: RCLK

unless of course I am missing something that is...

> > -- clock-names:
> > -
> > -      - "MACCLK": The MAC IP clock
> > -      - "RCLK": Clock gate for the RMII RCLK

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