Message-ID: <20250402084646.10098-1-alex.vinarskis@gmail.com>
Date: Wed,  2 Apr 2025 10:44:01 +0200
From: Aleksandrs Vinarskis <alex.vinarskis@...il.com>
To: Bjorn Andersson <andersson@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Dmitry Baryshkov <lumag@...nel.org>,
	Aleksandrs Vinarskis <alex.vinarskis@...il.com>,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Konrad Dybcio <konradybcio@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	maud_spierings@...mail.com,
	dmitry.baryshkov@....qualcomm.com
Subject: [PATCH v2 0/3] X1E Asus Zenbook A14 support

Introduce support for the mentioned laptop.

Particular device exists in two model numbers:
* UX3407QA: X1P-42-100 or X1-26-100 (as tested)
* UX3407RA: X1E-78-100

Mostly similar to other X1-based laptops. Notable differences are:
* Wifi/Bluetooth combo being Qualcomm FastConnect 6900 on UX3407QA
  and Qualcomm FastConnect 7800 on UX3407RA
* USB Type-C retimers are Parade PS8833, appear to behave identical
  to Parade PS8830
* gpio90 is TZ protected

When comparing device firmware between UX3407QA, UX3407RA, it seems
that only ADSP firmware is different, CDSP and GPU firmware appears to
be the same. (At least assuming the GPU firmware name in both cases is
`qcdxkmsuc8380.mbn`). Since at least some blobs are different betweeen
X1E and X1/X1P, define new firmware directory for `qcom/x1p42100`. This
also makes it easier for distros to automatically extract firmware from
Windows and place all blobs for the model under the same path. If/When
firmware blobs make it to linux-firmware, same blobs can be easily
symlinked between `qcom/x1e80100` and `qcom/x1p42100`.

NVMe SSD depends on [1]. USB Type-A over USB MP controller  depends on
[2], or equivalent proposed solution.

Qualcomm FastConnect 6900 on UX3407QA did not work out of the box, and
additionally required both newer firmware and patches to `board-2.bin`.
I added a short how-to [3], as it is not exactly trivial.

ACPI dumps can be found on aarch64-laptops' github [4]. HWids on
dtbloader's github [5].

[1] https://lore.kernel.org/linux-arm-msm/20250319094544.3980357-1-quic_wenbyao@quicinc.com/
[2] https://lore.kernel.org/all/20250318-xps13-fingerprint-v1-1-fbb02d5a34a7@oss.qualcomm.com/
[3] https://github.com/alexVinarskis/linux-x1e80100-zenbook-a14?tab=readme-ov-file#wcn688x-wifi
[4] https://github.com/aarch64-laptops/build/pull/134/files
[5] https://github.com/TravMurav/dtbloader/pull/4/files

Changes to v1:
* Drop PS8833 variant, fallback to PS8830 as they behave the same
* Drop wrong pcie6a_phy compatible revert
* Drop redundant comments, fix order of properties in the device-tree
* Fix device name bindings, express in model names instead of the soc
* Fix GPU firmware name for UX3407QA
* Fix model string, enclose variant in parenthesis
* Added missing new lines before 'status = "okay";'
* Updated cover letter to reflect some of the above changes
* Left SPI10 disabled as it is unknown how/what for to use it as of now
Link to v1: https://lore.kernel.org/all/20250331215720.19692-1-alex.vinarskis@gmail.com/

Aleksandrs Vinarskis (3):
  dt-bindings: arm: qcom: Add Asus Zenbook A14
  firmware: qcom: scm: Allow QSEECOM on Asus Zenbook A14
  arm64: dts: qcom: Add support for X1-based Asus Zenbook A14

 .../devicetree/bindings/arm/qcom.yaml         |    2 +
 arch/arm64/boot/dts/qcom/Makefile             |    2 +
 arch/arm64/boot/dts/qcom/x1-zenbook-a14.dtsi  | 1258 +++++++++++++++++
 .../dts/qcom/x1e80100-asus-zenbook-a14.dts    |   45 +
 .../dts/qcom/x1p42100-asus-zenbook-a14.dts    |   48 +
 drivers/firmware/qcom/qcom_scm.c              |    2 +
 6 files changed, 1357 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/x1-zenbook-a14.dtsi
 create mode 100644 arch/arm64/boot/dts/qcom/x1e80100-asus-zenbook-a14.dts
 create mode 100644 arch/arm64/boot/dts/qcom/x1p42100-asus-zenbook-a14.dts

-- 
2.45.2

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