linux-kernel - Re: [PATCH 2/2] arm64: dts: qcom: x1p42100-lenovo-thinkbook-16: add hdmi bridge with enable pin

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Message-ID: <625ca8eb-5d6f-4109-8000-044bcf868337@oldschoolsolutions.biz>
Date: Sun, 21 Dec 2025 16:51:03 +0100
From: Jens Glathe <jens.glathe@...schoolsolutions.biz>
To: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
Cc: Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 Val Packett <val@...kett.cool>
Subject: Re: [PATCH 2/2] arm64: dts: qcom: x1p42100-lenovo-thinkbook-16: add
 hdmi bridge with enable pin

On 21.12.25 16:23, Dmitry Baryshkov wrote:
> This can't work, the pin can only be used for a single function.

See, that's where I am, too :) Configure it that way and you get the 
HDMI to work, be prudent and remove edp_hpd_default, and boom the 
internal display is gone. Maybe someone with some schematics can shed 
light on this.

with best regards

Jens