netdev - Re: [PATCH] dt-bindings: net: rockchip-dwmac: use rgmii-id in example

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Message-ID: <6d06c3e3f59f26e16fe1f02dc3225d9e@manjaro.org>
Date: Mon, 08 Apr 2024 16:13:29 +0200
From: Dragan Simic <dsimic@...jaro.org>
To: Sascha Hauer <s.hauer@...gutronix.de>
Cc: "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
 <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
 Heiko Stuebner <heiko@...ech.de>, David Wu <david.wu@...k-chips.com>,
 netdev@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-kernel@...r.kernel.org, Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH] dt-bindings: net: rockchip-dwmac: use rgmii-id in example

Hello Sascha,

On 2024-04-08 08:44, Sascha Hauer wrote:
> The dwmac supports specifying the RGMII clock delays, but it is
> recommended to use rgmii-id and to specify the delays in the phy node
> instead [1].
> 
> Change the example accordingly to no longer promote this undesired
> setting.
> 
> [1] 
> https://lore.kernel.org/all/1a0de7b4-f0f7-4080-ae48-f5ffa9e76be3@lunn.ch/
> 
> Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>

I'd suggest that the following link is also added to the patch
description as a reference, because it contains rather useful
information:

https://lore.kernel.org/linux-rockchip/2973a2cb1f478031ae6d478c853c33ae@manjaro.org/

Otherwise,

Reviewed-by: Dragan Simic <dsimic@...jaro.org>

> ---
>  Documentation/devicetree/bindings/net/rockchip-dwmac.yaml | 4 +---
>  1 file changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
> b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
> index 70bbc4220e2ac..6bbe96e352509 100644
> --- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
> @@ -137,8 +137,6 @@ examples:
>          assigned-clock-parents = <&ext_gmac>;
> 
>          rockchip,grf = <&grf>;
> -        phy-mode = "rgmii";
> +        phy-mode = "rgmii-id";
>          clock_in_out = "input";
> -        tx_delay = <0x30>;
> -        rx_delay = <0x10>;
>      };
> 
> ---
> base-commit: 39cd87c4eb2b893354f3b850f916353f2658ae6f
> change-id: 20240408-rockchip-dwmac-rgmii-id-binding-6166af659845
> 
> Best regards,