netdev - Re: [PATCH net-next v3 1/4] dt-bindings: net: mscc,vsc7514-switch: convert txt bindings to yaml

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Date:   Fri, 26 Nov 2021 19:00:55 +0100
From:   Clément Léger <clement.leger@...tlin.com>
To:     Vladimir Oltean <vladimir.oltean@....com>,
        Julian Wiedmann <jwi@...ux.ibm.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Claudiu Manoil <claudiu.manoil@....com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        "UNGLinuxDriver@...rochip.com" <UNGLinuxDriver@...rochip.com>,
        Andrew Lunn <andrew@...n.ch>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Denis Kirjanov <dkirjanov@...e.de>
Subject: Re: [PATCH net-next v3 1/4] dt-bindings: net: mscc,vsc7514-switch:
 convert txt bindings to yaml

Le Fri, 26 Nov 2021 17:50:05 +0000,
Vladimir Oltean <vladimir.oltean@....com> a écrit :

> On Fri, Nov 26, 2021 at 06:27:36PM +0100, Clément Léger wrote:
> > +  ethernet-ports:
> > +    type: object
> > +
> > +    properties:
> > +      '#address-cells':
> > +        const: 1
> > +      '#size-cells':
> > +        const: 0
> > +
> > +    additionalProperties: false
> > +
> > +    patternProperties:
> > +      "^port@[0-9a-f]+$":
> > +        type: object
> > +        description: Ethernet ports handled by the switch
> > +
> > +        $ref: ethernet-controller.yaml#
> > +
> > +        unevaluatedProperties: false
> > +
> > +        properties:
> > +          reg:
> > +            description: Switch port number
> > +
> > +          phy-handle: true
> > +
> > +          phy-mode: true
> > +
> > +          fixed-link: true
> > +
> > +          mac-address: true
> > +
> > +        required:
> > +          - reg
> > +
> > +        oneOf:
> > +          - required:
> > +              - phy-handle
> > +              - phy-mode
> > +          - required:
> > +              - fixed-link  
> 
> Are you practically saying that a phy-mode would not be required with
> fixed-link? Because it still is...

I tried to get it right by looking at a binding you probably know
(dsa.yaml), but none of them are using a oneOf property for these
properties so I tried to guess what was really required or not. I will
add the phy-mode property in the required field since it seems always
needed:

+        required:
+          - reg
+          - phy-mode
+
+        oneOf:
+          - required:
+              - phy-handle
+          - required:
+              - fixed-link  

Does it looks good to you ?

Thanks,

> 
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - reg-names
> > +  - interrupts
> > +  - interrupt-names
> > +  - ethernet-port  



-- 
Clément Léger,
Embedded Linux and Kernel engineer at Bootlin
https://bootlin.com