netdev - Re: [PATCH v4 net-next 8/9] dt-bindings: net: add generic ethernet-switch-port binding

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Date:   Tue, 6 Dec 2022 18:49:22 -0800
From:   Colin Foster <colin.foster@...advantage.com>
To:     Vladimir Oltean <olteanv@...il.com>
Cc:     linux-renesas-soc@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, netdev@...r.kernel.org,
        John Crispin <john@...ozen.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Marek Vasut <marex@...x.de>,
        Sean Wang <sean.wang@...iatek.com>,
        DENG Qingfang <dqfext@...il.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        nç ÜNAL <arinc.unal@...nc9.com>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Clément Léger <clement.leger@...tlin.com>,
        Alvin Šipraga <alsi@...g-olufsen.dk>,
        Linus Walleij <linus.walleij@...aro.org>,
        UNGLinuxDriver@...rochip.com,
        Woojung Huh <woojung.huh@...rochip.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Kurt Kanzenbach <kurt@...utronix.de>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        George McCollister <george.mccollister@...il.com>
Subject: Re: [PATCH v4 net-next 8/9] dt-bindings: net: add generic
 ethernet-switch-port binding

On Tue, Dec 06, 2022 at 05:50:49PM +0200, Vladimir Oltean wrote:
> On Fri, Dec 02, 2022 at 12:45:58PM -0800, Colin Foster wrote:
> > --- a/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
> > +++ b/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
> > @@ -4,7 +4,7 @@
> >  $id: http://devicetree.org/schemas/net/dsa/dsa-port.yaml#
> >  $schema: http://devicetree.org/meta-schemas/core.yaml#
> >  
> > -title: Ethernet Switch port Device Tree Bindings
> > +title: Generic DSA Switch port
> 
> What are the capitalization rules in titles? Looks odd that "port" is
> lowercase but "switch" isn't.

Agreed. A quick grep for "title:\ " shows... a fair amount of
inconsistency. I'd lean toward Port. [insert nautical and/or fortified
wine joke here]

> 
> >  
> >  maintainers:
> >    - Andrew Lunn <andrew@...n.ch>
> > @@ -14,8 +14,7 @@ maintainers:
> >  description:
> >    Ethernet switch port Description
> >  
> > -allOf:
> > -  - $ref: /schemas/net/ethernet-controller.yaml#
> > +$ref: /schemas/net/ethernet-switch-port.yaml#
> >  
> >  properties:
> >    reg:
> > @@ -58,25 +57,6 @@ properties:
> >        - rtl8_4t
> >        - seville
> >  
> > -  phy-handle: true
> > -
> > -  phy-mode: true
> > -
> > -  fixed-link: true
> > -
> > -  mac-address: true
> > -
> > -  sfp: true
> > -
> > -  managed: true
> > -
> > -  rx-internal-delay-ps: true
> > -
> > -  tx-internal-delay-ps: true
> > -
> > -required:
> > -  - reg
> > -
> >  # CPU and DSA ports must have phylink-compatible link descriptions
> >  if:
> >    oneOf:
> > diff --git a/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml b/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
> > new file mode 100644
> > index 000000000000..3d7da6916fb8
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
> > @@ -0,0 +1,25 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/net/ethernet-switch-port.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Generic Ethernet Switch port
> > +
> > +maintainers:
> > +  - Andrew Lunn <andrew@...n.ch>
> > +  - Florian Fainelli <f.fainelli@...il.com>
> > +  - Vivien Didelot <vivien.didelot@...il.com>
> > +
> > +description:
> > +  Ethernet switch port Description
> 
> Sounds a bit too "lorem ipsum dolor sit amet". You can say that a port
> is a component of a switch which manages one MAC, and can pass Ethernet
> frames.

Good suggestion again. Happy to change this as well. I'm planning to
send an update late tomorrow (Wednesday) to give a couple days before
Sunday. Hopefully that's enough time for any suggestions on these last
couple issues.