linux-kernel - Re: [PATCH 2/2] dt-bindings: net: dsa: qca8k: improve port definition documentation

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Message-ID: <YaVEDN2unmq7O4Ob@robh.at.kernel.org>
Date:   Mon, 29 Nov 2021 15:20:12 -0600
From:   Rob Herring <robh@...nel.org>
To:     Ansuel Smith <ansuelsmth@...il.com>
Cc:     Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        John Crispin <john@...ozen.org>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] dt-bindings: net: dsa: qca8k: improve port
 definition documentation

On Fri, Nov 12, 2021 at 05:57:52PM +0100, Ansuel Smith wrote:
> Clean and improve port definition for qca8k documentation by referencing
> the dsa generic port definition and adding the additional specific port
> definition.
> 
> Signed-off-by: Ansuel Smith <ansuelsmth@...il.com>
> ---
>  .../devicetree/bindings/net/dsa/qca8k.yaml    | 82 ++++++-------------
>  1 file changed, 23 insertions(+), 59 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.yaml b/Documentation/devicetree/bindings/net/dsa/qca8k.yaml
> index 48de0ace265d..9eb24cdf6cd4 100644
> --- a/Documentation/devicetree/bindings/net/dsa/qca8k.yaml
> +++ b/Documentation/devicetree/bindings/net/dsa/qca8k.yaml
> @@ -99,65 +99,29 @@ patternProperties:
>          type: object
>          description: Ethernet switch ports
>  
> -        properties:
> -          reg:
> -            description: Port number
> -
> -          label:
> -            description:
> -              Describes the label associated with this port, which will become
> -              the netdev name
> -            $ref: /schemas/types.yaml#/definitions/string
> -
> -          link:
> -            description:
> -              Should be a list of phandles to other switch's DSA port. This
> -              port is used as the outgoing port towards the phandle ports. The
> -              full routing information must be given, not just the one hop
> -              routes to neighbouring switches
> -            $ref: /schemas/types.yaml#/definitions/phandle-array
> -
> -          ethernet:
> -            description:
> -              Should be a phandle to a valid Ethernet device node.  This host
> -              device is what the switch port is connected to
> -            $ref: /schemas/types.yaml#/definitions/phandle
> -
> -          phy-handle: true
> -
> -          phy-mode: true
> -
> -          fixed-link: true
> -
> -          mac-address: true
> -
> -          sfp: true
> -
> -          qca,sgmii-rxclk-falling-edge:
> -            $ref: /schemas/types.yaml#/definitions/flag
> -            description:
> -              Set the receive clock phase to falling edge. Mostly commonly used on
> -              the QCA8327 with CPU port 0 set to SGMII.
> -
> -          qca,sgmii-txclk-falling-edge:
> -            $ref: /schemas/types.yaml#/definitions/flag
> -            description:
> -              Set the transmit clock phase to falling edge.
> -
> -          qca,sgmii-enable-pll:
> -            $ref: /schemas/types.yaml#/definitions/flag
> -            description:
> -              For SGMII CPU port, explicitly enable PLL, TX and RX chain along with
> -              Signal Detection. On the QCA8327 this should not be enabled, otherwise
> -              the SGMII port will not initialize. When used on the QCA8337, revision 3
> -              or greater, a warning will be displayed. When the CPU port is set to
> -              SGMII on the QCA8337, it is advised to set this unless a communication
> -              issue is observed.
> -
> -        required:
> -          - reg
> -
> -        additionalProperties: false
> +        allOf:
> +          - $ref: dsa-port.yaml#
> +          - properties:

You can drop 'allOf' here too. And add 'unevaluatedProperties: false'.

With that,

Reviewed-by: Rob Herring <robh@...nel.org>

> +              qca,sgmii-rxclk-falling-edge:
> +                $ref: /schemas/types.yaml#/definitions/flag
> +                description:
> +                  Set the receive clock phase to falling edge. Mostly commonly used on
> +                  the QCA8327 with CPU port 0 set to SGMII.
> +
> +              qca,sgmii-txclk-falling-edge:
> +                $ref: /schemas/types.yaml#/definitions/flag
> +                description:
> +                  Set the transmit clock phase to falling edge.
> +
> +              qca,sgmii-enable-pll:
> +                $ref: /schemas/types.yaml#/definitions/flag
> +                description:
> +                  For SGMII CPU port, explicitly enable PLL, TX and RX chain along with
> +                  Signal Detection. On the QCA8327 this should not be enabled, otherwise
> +                  the SGMII port will not initialize. When used on the QCA8337, revision 3
> +                  or greater, a warning will be displayed. When the CPU port is set to
> +                  SGMII on the QCA8337, it is advised to set this unless a communication
> +                  issue is observed.
>  
>  oneOf:
>    - required:
> -- 
> 2.32.0
> 
>