linux-kernel - Re: [PATCH] arm64: dts: qcom: x1e80100-lenovo-yoga-slim7x: add retimers, dp altmode support

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Message-ID: <20250417134921.45329-1-jos.dehaes@gmail.com>
Date: Thu, 17 Apr 2025 15:49:21 +0200
From: Jos Dehaes <jos.dehaes@...il.com>
To: devnull+jens.glathe.oldschoolsolutions.biz@...nel.org
Cc: andersson@...nel.org,
	conor+dt@...nel.org,
	devicetree@...r.kernel.org,
	jens.glathe@...schoolsolutions.biz,
	konradybcio@...nel.org,
	krzk+dt@...nel.org,
	linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	robh@...nel.org,
	Jos Dehaes <jos.dehaes@...il.com>
Subject: Re: [PATCH] arm64: dts: qcom: x1e80100-lenovo-yoga-slim7x: add retimers, dp altmode support

> From: Jens Glathe <jens.glathe@...schoolsolutions.biz>
> 
> comparing with CRD and other dts for a more complete support of the 7X
> 
> Signed-off-by: Jens Glathe <jens.glathe@...schoolsolutions.biz>
> ---
> This patch adds the required nodes to support DP Altmode on all three type-c
> ports. The definition is derived from the CRD. Since they are all marked 40Gbps,
> I assume there are 3 PS8830 retimers. 
> This modification is now for ~8 weeks in my tree with little to no complaints. I 
> don't have access to a Yoga Slim 7X, however many people on #aarch64-laptops do 
> and some are using this patch.
> ---

Tested-by: Jos Dehaes <jos.dehaes@...il.com>

Tested on yoga slim 7x with a USB C cable to Iiyama screen@...0p. Was able to extend the screen on GNOME desktop.