linux-kernel - Re: [PATCH v8 net-next 01/10] dt-bindings: net: dsa: dt bindings for microchip lan937x

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Message-ID: <ebf1b233da821e2cd3586f403a1cdc2509671cde.camel@microchip.com>
Date:   Wed, 9 Feb 2022 17:28:12 +0530
From:   Prasanna Vengateshan <prasanna.vengateshan@...rochip.com>
To:     Florian Fainelli <f.fainelli@...il.com>, <andrew@...n.ch>,
        <netdev@...r.kernel.org>, <olteanv@...il.com>, <robh+dt@...nel.org>
CC:     <UNGLinuxDriver@...rochip.com>, <woojung.huh@...rochip.com>,
        <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <kuba@...nel.org>,
        <linux-kernel@...r.kernel.org>, <vivien.didelot@...il.com>,
        <devicetree@...r.kernel.org>, Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v8 net-next 01/10] dt-bindings: net: dsa: dt bindings
 for microchip lan937x

On Mon, 2022-02-07 at 18:53 -0800, Florian Fainelli wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the
> content is safe
> 
> On 2/7/2022 9:21 AM, Prasanna Vengateshan wrote:
> > Documentation in .yaml format and updates to the MAINTAINERS
> > Also 'make dt_binding_check' is passed.
> > 
> > RGMII internal delay values for the mac is retrieved from
> > rx-internal-delay-ps & tx-internal-delay-ps as per the feedback from
> > v3 patch series.
> > https://lore.kernel.org/netdev/20210802121550.gqgbipqdvp5x76ii@skbuf/
> > 
> > It supports only the delay value of 0ns and 2ns.
> > 
> > Signed-off-by: Prasanna Vengateshan <prasanna.vengateshan@...rochip.com>
> > Reviewed-by: Rob Herring <robh@...nel.org>
> > ---
> >   .../bindings/net/dsa/microchip,lan937x.yaml   | 179 ++++++++++++++++++
> >   MAINTAINERS                                   |   1 +
> >   2 files changed, 180 insertions(+)
> >   create mode 100644
> > Documentation/devicetree/bindings/net/dsa/microchip,lan937x.yaml
> > 
> > +    maxItems: 1
> > +
> > +  mdio:
> > +    $ref: /schemas/net/mdio.yaml#
> > +    unevaluatedProperties: false
> 
> This should be moved to dsa.yaml since this is about describing the
> switch's internal MDIO bus controller. This is applicable to any switch,
> really.

Thanks for your review and feedback. Do you mean that 'mdio' to be added in
dsa.yaml instead adding here?

> 
> > +
> > +patternProperties:
> > +  "^(ethernet-)?ports$":
> > +    patternProperties:
> > +      "^(ethernet-)?port@[0-7]+$":
> > +        allOf:
> > +          - if:
> > +              properties:
> > +                phy-mode:
> > +                  contains:
> > +                    enum:
> > +                      - rgmii
> > +                      - rgmii-rxid
> > +                      - rgmii-txid
> > +                      - rgmii-id
> > +            then:
> > +              properties:
> > +                rx-internal-delay-ps:
> > +                  $ref: "#/$defs/internal-delay-ps"
> > +                tx-internal-delay-ps:
> > +                  $ref: "#/$defs/internal-delay-ps"
> 
> Likewise, this should actually be changed in ethernet-controller.yaml

There is *-internal-delay-ps property defined for mac in ethernet-
controller.yaml. Should that be changed like above? 


Prasanna V