netdev - Re: [PATCH 1/3] net: ethernet: ixp4xx: Add DT bindings

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Message-ID: <YIGco30TpBiyZLgD@lunn.ch>
Date:   Thu, 22 Apr 2021 17:56:19 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Linus Walleij <linus.walleij@...aro.org>
Cc:     Rob Herring <robh+dt@...nel.org>, netdev <netdev@...r.kernel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Zoltan HERPAI <wigyori@...0.hu>,
        Raylynn Knight <rayknight@...com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/3] net: ethernet: ixp4xx: Add DT bindings

On Thu, Apr 22, 2021 at 05:39:07PM +0200, Linus Walleij wrote:
> On Tue, Apr 20, 2021 at 3:26 AM Andrew Lunn <andrew@...n.ch> wrote:
> 
> > > +      mdio {
> > > +        #address-cells = <1>;
> > > +        #size-cells = <0>;
> > > +        phy1: phy@1 {
> > > +          #phy-cells = <0>;
> >
> > Hi Linus
> >
> > phy-cells is not part of the Ethernet PHY binding.
> 
> Nevertheless:
> 
>   CHECK   Documentation/devicetree/bindings/net/intel,ixp4xx-ethernet.example.dt.yaml
> /var/linus/linux-nomadik/build-ixp4/Documentation/devicetree/bindings/net/intel,ixp4xx-ethernet.example.dt.yaml:
> phy@1: '#phy-cells' is a required property
>     From schema:
> /home/linus/.local/lib/python3.9/site-packages/dtschema/schemas/phy/phy-provider.yaml
> 
> It has been hardcoded as required into the dtschema python package.
> Looks like this:
> 
> properties:
>   $nodename:
>     pattern: "^(|usb-|usb2-|usb3-|pci-|pcie-|sata-)phy(@[0-9a-f,]+)*$"
> 
>   "#phy-cells": true
> 
>   phy-supply: true
> 
> required:
>   - "#phy-cells"
> 
> additionalProperties: true
> 
> If this is wrong I bet Rob needs to hear about it.

That is the wrong sort of PHY. That is a generic PHY, not a PHY, aka
Ethernet PHY. Maybe you need to change the label to ethernet-phy ?

	 Andrew