linux-kernel - Re: [PATCH 1/2] dt-bindings: net: starfive,jh7110-dwmac: Add StarFive JH8100 support

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Message-ID: <0aaa3f78-07c5-4c03-bb1b-897020541e7b@linaro.org>
Date: Mon, 8 Jan 2024 09:27:59 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Tan Chun Hau <chunhau.tan@...rfivetech.com>,
 "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>,
 Emil Renner Berthing <kernel@...il.dk>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Maxime Coquelin <mcoquelin.stm32@...il.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Simon Horman <horms@...nel.org>,
 Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
 Andrew Halaney <ahalaney@...hat.com>, Jisheng Zhang <jszhang@...nel.org>,
 Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
 Russell King <rmk+kernel@...linux.org.uk>
Cc: Ley Foon Tan <leyfoon.tan@...rfivetech.com>,
 Jee Heng Sia <jeeheng.sia@...rfivetech.com>, netdev@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-stm32@...md-mailman.stormreply.com,
 linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] dt-bindings: net: starfive,jh7110-dwmac: Add StarFive
 JH8100 support

On 08/01/2024 08:58, Tan Chun Hau wrote:
> Add StarFive JH8100 dwmac support.
> JH8100 dwmac has one reset signal instead of 2 resets as in JH7110.
> 
> Signed-off-by: Tan Chun Hau <chunhau.tan@...rfivetech.com>
> ---
>  .../bindings/net/starfive,jh7110-dwmac.yaml   | 28 ++++++++++++-------
>  1 file changed, 18 insertions(+), 10 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
> index 5e7cfbbebce6..3d0447726902 100644
> --- a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
> @@ -17,6 +17,7 @@ select:
>        contains:
>          enum:
>            - starfive,jh7110-dwmac
> +          - starfive,jh8100-dwmac

I have doubts that you tested it. Missing change to snps,dwmac.

>    required:
>      - compatible
>  
> @@ -25,6 +26,7 @@ properties:
>      items:
>        - enum:
>            - starfive,jh7110-dwmac
> +          - starfive,jh8100-dwmac
>        - const: snps,dwmac-5.20
>  
>    reg:
> @@ -54,16 +56,6 @@ properties:
>      minItems: 3
>      maxItems: 3
>  
> -  resets:
> -    items:
> -      - description: MAC Reset signal.
> -      - description: AHB Reset signal.
> -
> -  reset-names:
> -    items:
> -      - const: stmmaceth
> -      - const: ahb
> -
>    starfive,tx-use-rgmii-clk:
>      description:
>        Tx clock is provided by external rgmii clock.
> @@ -93,6 +85,22 @@ required:
>  
>  allOf:
>    - $ref: snps,dwmac.yaml#
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - starfive,jh7110-dwmac
> +    then:
> +      properties:
> +        resets:
> +          items:
> +            - description: MAC Reset signal.
> +            - description: AHB Reset signal.
> +        resets-names:
> +          items:
> +            - const: stmmaceth
> +            - const: ahb

Missing else: narrowing your jh8100.

Best regards,
Krzysztof