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Message-ID: <b6c7462d-99fc-a8e1-1cc2-d0a1efc7c34d@arinc9.com>
Date:   Sun, 11 Jun 2023 10:12:40 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     Daniel Golle <daniel@...rotopia.org>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Felix Fietkau <nbd@....name>, Greg Ungerer <gerg@...nel.org>,
        Bjørn Mork <bjorn@...k.no>,
        Florian Fainelli <f.fainelli@...il.com>,
        Sean Wang <sean.wang@...nel.org>
Cc:     Sergio Paracuellos <sergio.paracuellos@...il.com>
Subject: Re: [PATCH] dt-bindings: net: mediatek,net: add missing
 mediatek,mt7621-eth

Thanks for working on this.

On 11.06.2023 03:16, Daniel Golle wrote:
> Document the Ethernet controller found in the MediaTek MT7621 MIPS SoC
> family which is supported by the mtk_eth_soc driver.
> 
> Fixes: 889bcbdeee57 ("net: ethernet: mediatek: support MT7621 SoC ethernet hardware")
> Signed-off-by: Daniel Golle <daniel@...rotopia.org>
> ---
>   .../devicetree/bindings/net/mediatek,net.yaml | 27 ++++++++++++++++++-
>   1 file changed, 26 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/mediatek,net.yaml b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> index acb2b2ac4fe1e..38aa3d97ee234 100644
> --- a/Documentation/devicetree/bindings/net/mediatek,net.yaml
> +++ b/Documentation/devicetree/bindings/net/mediatek,net.yaml
> @@ -19,6 +19,7 @@ properties:
>       enum:
>         - mediatek,mt2701-eth
>         - mediatek,mt7623-eth
> +      - mediatek,mt7621-eth
>         - mediatek,mt7622-eth
>         - mediatek,mt7629-eth
>         - mediatek,mt7981-eth
> @@ -32,7 +33,7 @@ properties:
>     clock-names: true
>   
>     interrupts:
> -    minItems: 3
> +    minItems: 1

I suppose this is to allow a single item for mediatek,mt7621-eth?

>       maxItems: 4
>   
>     power-domains:
> @@ -131,6 +132,30 @@ allOf:
>   
>           mediatek,wed-pcie: false
>   
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - mediatek,mt7621-eth
> +    then:
> +      properties:
> +        interrupts:
> +          maxItems: 1
> +
> +        clocks:
> +          minItems: 2
> +          maxItems: 2
> +
> +        clock-names:
> +          items:
> +            - const: ethif
> +            - const: fe
> +
> +        mediatek,wed: false
> +
> +        mediatek,wed-pcie: false
> +
>     - if:
>         properties:
>           compatible:

I'm getting warnings with this patch applied:

arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
resets: [[2, 6], [2, 23]] is too short
arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
reset-names:1: 'gmac' was expected
arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
reset-names: ['fe', 'eth'] is too short
arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
clock-names:0: 'ethif' was expected
arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
clock-names:1: 'fe' was expected
arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
mac@0: 'fixed-link' does not match any of the regexes: 'pinctrl-[0-9]+'
arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
mac@0: 'phy-handle' is a required property
arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
mac@1: 'fixed-link' does not match any of the regexes: 'pinctrl-[0-9]+'
arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
mac@1: 'phy-handle' is a required property
arch/mips/boot/dts/ralink/mt7621-gnubee-gb-pc1.dtb: ethernet@...00000: 
Unevaluated properties are not allowed ('reset-names', 'resets' were 
unexpected)

I see the bindings for the MT7621 SoC are a bit different than the 
bindings for the current SoCs on this schema, interrupts, phy-handle non 
requirement, resets, reset-names, etc. Maybe we should overwrite things 
under the check for mediatek,mt7621-eth.

I'm not very confident all the bindings for mediatek,mt7621-eth on 
mt7621.dtsi are correct either.

Arınç

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