netdev - Re: [PATCH v4 1/1] dt-bindings: net: starfive,jh7110-dwmac: Add StarFive JH8100 support

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Date: Tue, 26 Mar 2024 16:34:26 -0500
From: Rob Herring <robh@...nel.org>
To: Tan Chun Hau <chunhau.tan@...rfivetech.com>
Cc: "David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Emil Renner Berthing <kernel@...il.dk>,
	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>,
	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,
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v4 1/1] dt-bindings: net: starfive,jh7110-dwmac: Add
 StarFive JH8100 support

On Mon, Mar 25, 2024 at 10:25:05PM -0700, Tan Chun Hau wrote:
> Add StarFive JH8100 dwmac support.
> The JH8100 dwmac shares the same driver code as the JH7110 dwmac
> and has only one reset signal.
> 
> Please refer to below:
> 
>   JH8100: reset-names = "stmmaceth";
>   JH7110: reset-names = "stmmaceth", "ahb";
>   JH7100: reset-names = "ahb";
> 
> Example usage of JH8100 in the device tree:
> 
> gmac0: ethernet@...30000 {
>         compatible = "starfive,jh8100-dwmac",
>                      "starfive,jh7110-dwmac",
>                      "snps,dwmac-5.20";
>         ...
> };
> 
> Signed-off-by: Tan Chun Hau <chunhau.tan@...rfivetech.com>
> ---
>  .../devicetree/bindings/net/snps,dwmac.yaml   |  1 +
>  .../bindings/net/starfive,jh7110-dwmac.yaml   | 54 ++++++++++++++-----
>  2 files changed, 41 insertions(+), 14 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> index 6b0341a8e0ea..a6d596b7dcf4 100644
> --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> @@ -97,6 +97,7 @@ properties:
>          - snps,dwxgmac-2.10
>          - starfive,jh7100-dwmac
>          - starfive,jh7110-dwmac
> +        - starfive,jh8100-dwmac
>  
>    reg:
>      minItems: 1
> diff --git a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
> index 0d1962980f57..ce018e9768d2 100644
> --- a/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/starfive,jh7110-dwmac.yaml
> @@ -18,6 +18,7 @@ select:
>          enum:
>            - starfive,jh7100-dwmac
>            - starfive,jh7110-dwmac
> +          - starfive,jh8100-dwmac
>    required:
>      - compatible
>  
> @@ -30,6 +31,10 @@ properties:
>        - items:
>            - const: starfive,jh7110-dwmac
>            - const: snps,dwmac-5.20
> +      - items:
> +          - const: starfive,jh8100-dwmac
> +          - const: starfive,jh7110-dwmac
> +          - const: snps,dwmac-5.20
>  
>    reg:
>      maxItems: 1
> @@ -107,20 +112,41 @@ allOf:
>            contains:
>              const: starfive,jh7110-dwmac
>      then:
> -      properties:
> -        interrupts:
> -          minItems: 3
> -          maxItems: 3
> -
> -        interrupt-names:
> -          minItems: 3
> -          maxItems: 3

interrupts and interrupt-names are the same, so you can leave them here 
instead of duplicating them as you have.

> -
> -        resets:
> -          minItems: 2
> -
> -        reset-names:
> -          minItems: 2
> +      if:
> +        properties:
> +          compatible:
> +            contains:
> +              const: starfive,jh8100-dwmac
> +      then:
> +        properties:
> +          interrupts:
> +            minItems: 3
> +            maxItems: 3
> +
> +          interrupt-names:
> +            minItems: 3
> +            maxItems: 3
> +
> +          resets:
> +            maxItems: 1
> +
> +          reset-names:
> +            const: stmmaceth
> +      else:
> +        properties:
> +          interrupts:
> +            minItems: 3
> +            maxItems: 3
> +
> +          interrupt-names:
> +            minItems: 3
> +            maxItems: 3
> +
> +          resets:
> +            minItems: 2
> +
> +          reset-names:
> +            minItems: 2
>  
>  unevaluatedProperties: false
>  
> -- 
> 2.25.1
>