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From: Jeff Roach <jeff.roach0@gmail.com>
To: Bjorn Andersson <andersson@kernel.org>,
	Konrad Dybcio <konradybcio@kernel.org>
Cc: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Abel Vesa <abelvesa@kernel.org>,
	linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 0/2] arm64: dts: qcom: Add HP OmniBook X 16-cp1
Date: Fri, 23 Oct 2026 23:46:48 -0500	[thread overview]
Message-ID: <20261024044650.9936-1-jeff.roach0@gmail.com> (raw)

This adds a device tree for the HP OmniBook X 16-cp1 (board 8F46), a 16"
laptop with the 12-core Snapdragon X2 Elite (Mahua).

Tested with Ubuntu's 7.3-based linux-qcom-x1e kernel. Everything listed
in patch 2 works there, including suspend (s2idle).

Notes:
- DisplayPort at HBR2 needs "phy: qualcomm: qmp-combo: update DP PHY PLL
  programming on Glymur" v5 [1]. Without it the stream runs at half rate
  and the monitor shows no picture. With it, about 1 in 4 plug-ins still
  gives no picture; replugging fixes it.
- The GPU is disabled. It works with "drm/msm: Mahua GPU support" [2]
  applied; I'll send a follow-up to enable it once that lands.
- Audio needs a topology and UCM config for the "HP-OmniBook-X16" model,
  which are not upstream yet. The headphone jack (SDCA) is not described.
- I hit one hard lockup while plugging USB-C devices during testing and
  could not reproduce it in later plug/unplug cycles.

Earlier bring-up report: [3]

[1] https://lore.kernel.org/all/20261001-glymur-phy-v3-v5-0-3848c2615d5a@oss.qualcomm.com/
[2] https://lore.kernel.org/all/20260925-mahua-gpu-v1-0-0fa0bfd8d315@oss.qualcomm.com/
[3] https://lore.kernel.org/all/CAAnD8Rb4ZZrHFWMJayabioB_8bOHh1mqZ5LCXZz0jTNGMA7UZQ@mail.gmail.com/

Jeff Roach (2):
  dt-bindings: arm: qcom: Add HP OmniBook X 16-cp1
  arm64: dts: qcom: Add HP OmniBook X 16-cp1

 .../devicetree/bindings/arm/qcom.yaml         |   1 +
 arch/arm64/boot/dts/qcom/Makefile             |   1 +
 .../boot/dts/qcom/mahua-hp-omnibook-x16.dts   | 840 ++++++++++++++++++
 3 files changed, 842 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/mahua-hp-omnibook-x16.dts


base-commit: f5672a3dff0291d6a45eb0c258b9d2baeb4dc577
-- 
2.55.0


             reply	other threads:[~2026-10-24  4:48 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-24  4:46 Jeff Roach [this message]
2026-10-24  4:46 ` [PATCH 1/2] dt-bindings: arm: " Jeff Roach
2026-10-24  4:46 ` [PATCH 2/2] arm64: dts: " Jeff Roach

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