linux-kernel - Re: [PATCH v4 1/3] dt-bindings: net: sophgo,sg2044-dwmac: add phy mode restriction

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Message-ID: <20251028-parka-proud-265e5b342b8e@spud>
Date: Tue, 28 Oct 2025 19:22:37 +0000
From: Conor Dooley <conor@...nel.org>
To: Inochi Amaoto <inochiama@...il.com>
Cc: Han Gao <rabenda.cn@...il.com>, Icenowy Zheng <uwu@...nowy.me>,
	Vivian Wang <wangruikang@...as.ac.cn>, Yao Zi <ziyao@...root.org>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
	netdev@...r.kernel.org, devicetree@...r.kernel.org,
	sophgo@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org, Yixun Lan <dlan@...too.org>,
	Longbin Li <looong.bin@...il.com>
Subject: Re: [PATCH v4 1/3] dt-bindings: net: sophgo,sg2044-dwmac: add phy
 mode restriction

On Tue, Oct 28, 2025 at 08:38:56AM +0800, Inochi Amaoto wrote:
> As the ethernet controller of SG2044 and SG2042 only supports
> RGMII phy. Add phy-mode property to restrict the value.
> 
> Also, since SG2042 has internal rx delay in its mac, make
> only "rgmii-txid" and "rgmii-id" valid for phy-mode.

Should this have a fixes tag?
Acked-by: Conor Dooley <conor.dooley@...rochip.com>

> 
> Signed-off-by: Inochi Amaoto <inochiama@...il.com>
> ---
>  .../bindings/net/sophgo,sg2044-dwmac.yaml     | 20 +++++++++++++++++++
>  1 file changed, 20 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml b/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
> index ce21979a2d9a..916ef8f4838a 100644
> --- a/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/sophgo,sg2044-dwmac.yaml
> @@ -70,6 +70,26 @@ required:
>  
>  allOf:
>    - $ref: snps,dwmac.yaml#
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: sophgo,sg2042-dwmac
> +    then:
> +      properties:
> +        phy-mode:
> +          enum:
> +            - rgmii-txid
> +            - rgmii-id
> +    else:
> +      properties:
> +        phy-mode:
> +          enum:
> +            - rgmii
> +            - rgmii-rxid
> +            - rgmii-txid
> +            - rgmii-id
> +
>  
>  unevaluatedProperties: false
>  
> -- 
> 2.51.1
> 

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