linux-kernel - Re: [PATCH v2 0/2] arm64: dts: qcom: x1p42100-lenovo-thinkbook-16: enable HDMI out

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Message-ID: <176745617452.2631416.9462586772942497525.b4-ty@kernel.org>
Date: Sat,  3 Jan 2026 10:02:56 -0600
From: Bjorn Andersson <andersson@...nel.org>
To: Konrad Dybcio <konradybcio@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Jens Glathe <jens.glathe@...schoolsolutions.biz>
Cc: linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Val Packett <val@...kett.cool>
Subject: Re: [PATCH v2 0/2] arm64: dts: qcom: x1p42100-lenovo-thinkbook-16: enable HDMI out


On Sat, 03 Jan 2026 10:00:22 +0100, Jens Glathe wrote:
> This patch set enables the HDMI port on the Lenovo ThinkBook 16 G7 QOY.
> The definitions have been derived from the T14s device tree, with some
> necessary changes. The HDMI bridge seems to utilize the enable pin.
> The required GPIO was derived from the AeoB dump of the Windows GPU
> driver, and then actually guessed with comparision to pinctrl-x1e80100.c.
> 
> Since the qmpphy involved is usb_1_ss2_qmpphy, and that usb_1_ss2 block
> is also used to operate the fingerprint reader, there's some possible
> interference. The explicit port configuration on usb_1_ss2_dwc3 minimizes
> this, however it works more reliable with the pipe_clk patch [1] that
> is discussed. Booting with HDMI cable cold-plugged results in the
> fingerprint reader not enumerating. Hot-plug and suspend doesn't kill it,
> though.
> 
> [...]

Applied, thanks!

[1/2] arm64: dts: qcom: x1p42100-lenovo-thinkbook-16: force usb2-only mode on usb_1_ss2_dwc3
      commit: 3802966a9c489708228b98b7265d8db87d8f6db3
[2/2] arm64: dts: qcom: x1p42100-lenovo-thinkbook-16: add hdmi bridge with enable pin
      commit: 67ce203eee94946768397a6fa16c43ee5292f31a

Best regards,
-- 
Bjorn Andersson <andersson@...nel.org>