linux-kernel - Re: [PATCH v1 3/3] arm64: dts: imx95-var-dart: Add support for Variscite Sonata board

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Message-ID: <aVLrkqgjrsX7jfYw@Lord-Beerus.station>
Date: Mon, 29 Dec 2025 21:58:58 +0100
From: Stefano Radaelli <stefano.radaelli21@...il.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	Stefano Radaelli <stefano.r@...iscite.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	Alexander Stein <alexander.stein@...tq-group.com>,
	Dario Binacchi <dario.binacchi@...rulasolutions.com>,
	Primoz Fiser <primoz.fiser@...ik.com>,
	Yannic Moog <y.moog@...tec.de>,
	Markus Niebel <Markus.Niebel@...group.com>,
	Josua Mayer <josua@...id-run.com>,
	Francesco Dolcini <francesco.dolcini@...adex.com>,
	imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v1 3/3] arm64: dts: imx95-var-dart: Add support for
 Variscite Sonata board

On Mon, Dec 29, 2025 at 07:24:50PM +0100, Andrew Lunn wrote:
> 
> What is this ethernet connected to? In the commit message you mention
> an SFP? So i would expect a phandle pointing to the SFP cage node,
> which follows:
> 
> Documentation/devicetree/bindings/net/sff,sfp.yam
> 
> 	Andrew

Hi Andrew,

You're absolutely right, thanks for pointing that out!

I mistakenly thought fixed-link alone was sufficient, but after reading
the sff,sfp.yaml binding I understand the sfp node is needed to properly
handle the SFP+ cage and transceiver module detection via I2C.

I've updated the patch to include the sfp node with i2c-bus and
los-gpios properties.

Sending v2 shortly.

Thanks,
Stefano