netdev - Re: [PATCH net-next v3 2/9] dt-bindings: net: mediatek,net: add mt7988-eth binding

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Message-ID: <20230719221320.GA865753-robh@kernel.org>
Date: Wed, 19 Jul 2023 16:13:20 -0600
From: Rob Herring <robh@...nel.org>
To: Daniel Golle <daniel@...rotopia.org>
Cc: "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, Felix Fietkau <nbd@....name>, John Crispin <john@...ozen.org>, Sean Wang <sean.wang@...iatek.com>, Mark Lee <Mark-MC.Lee@...iatek.com>, Lorenzo Bianconi <lorenzo@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>, AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, Russell King <linux@...linux.org.uk>, Florian Fainelli <f.fainelli@...il.com>, Greg Ungerer <gerg@...nel.org>, Bjørn Mork <bjorn@...k.no>, netdev@...r.kernel.org, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH net-next v3 2/9] dt-bindings: net: mediatek,net: add
 mt7988-eth binding

On Tue, Jul 18, 2023 at 10:30:33PM +0100, Daniel Golle wrote:
> Introduce DT bindings for the MT7988 SoC to mediatek,net.yaml.
> The MT7988 SoC got 3 Ethernet MACs operating at a maximum of
> 10 Gigabit/sec supported by 2 packet processor engines for
> offloading tasks.
> The first MAC is hard-wired to a built-in switch which exposes
> four 1000Base-T PHYs as user ports.
> It also comes with built-in 2500Base-T PHY which can be used
> with the 2nd GMAC.
> The 2nd and 3rd GMAC can be connected to external PHYs or provide
> SFP(+) cages attached via SGMII, 1000Base-X, 2500Base-X, USXGMII,
> 5GBase-KR or 10GBase-KR.
> 
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>
> ---
>  .../devicetree/bindings/net/mediatek,net.yaml | 74 +++++++++++++++++--
>  1 file changed, 69 insertions(+), 5 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> index 38aa3d97ee234..ae2062f3c1833 100644
> --- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
> +++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> @@ -24,6 +24,7 @@ properties:
>        - mediatek,mt7629-eth
>        - mediatek,mt7981-eth
>        - mediatek,mt7986-eth
> +      - mediatek,mt7988-eth
>        - ralink,rt5350-eth
>  
>    reg:
> @@ -61,6 +62,12 @@ properties:
>        Phandle to the mediatek hifsys controller used to provide various clocks
>        and reset to the system.
>  
> +  mediatek,infracfg:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      Phandle to the syscon node that handles the path from GMAC to
> +      PHY variants.
> +
>    mediatek,sgmiisys:
>      $ref: /schemas/types.yaml#/definitions/phandle-array
>      minItems: 1
> @@ -229,11 +236,7 @@ allOf:
>              - const: sgmii_ck
>              - const: eth2pll
>  
> -        mediatek,infracfg:
> -          $ref: /schemas/types.yaml#/definitions/phandle
> -          description:
> -            Phandle to the syscon node that handles the path from GMAC to
> -            PHY variants.
> +        mediatek,infracfg: true

You don't need this. What you need is 'mediatek,infracfg: false' in the 
if/then schemas for the cases it should not be present.

Rob