[PATCH v4 0/4] Introduce HONOR MagicBook Art 14 Snapdragon device tree

[Konstantin Shabanov]

Introduce support for the HONOR MagicBook Art 14 Snapdragon laptop.
This version is based on the initial work by Kirill A. Korinsky [1]
and Valentin Manea [2].

I'm using it with two external displays connected to the HDMI port and
DP<->USB-C (over external hub) as a daily driver.

eDP support is disabled and hopefully will be addressed in
the follow-up [1]. I can confirm that the RFC patch by the link fixes
output corruption (thanks Valentin!). Though, I have as suspicion that
the issue can be resolved w/o introducing the panel driver as the very
same panel seems to work out of the box in x86 version of
the laptop [7].

Another caveat is USB-C orientation as I could boot from an external SSD
only with specific cable orientation. I've tried the patch [8] but got
some instabilities, so put it out of scope for the initial submission.

Supported:

- Sound (with alsa-ucm-conf config [5])
  - Speakers
  - Headphone jack
- Bluetooth
- Battery
- HDMI
- DP over USB-C
- Touchpad
- Keyboard (with backlight)
- Touchscreen
- WiFi
- USB-C ports
- USB-A port
- UFS
- H/W accel

Untested:

- Camera
- Fingerprint reader
- Sleep/Suspend

Disabled:

- eDP

ACPI dumps are available in aarch64-laptops repo [3].
HWids in dtbloader repo [4].

[1]: https://lore.kernel.org/all/871px910m1.wl-kirill@xxxxxxxxx/
[2]: https://github.com/vamanea/linux-magicbook/blob/qcom-x1e-7.0/arch/arm64/boot/dts/qcom/x1e80100-honor-magicbook-art-14.dts
[3]: https://github.com/aarch64-laptops/build/tree/master/misc/honor-magicbook-art-14/acpi
[4]: https://github.com/TravMurav/dtbloader/blob/main/src/devices/honor_magicbook_art_14.c
[5]: https://github.com/alsa-project/alsa-ucm-conf/pull/755
[6]: https://lore.kernel.org/linux-arm-msm/2095cb86-6729-41f3-a0f3-b806d6acafd3@xxxxxx/
[7]: https://linux-hardware.org/?id=eisa:edo-edo4179
[8]: https://github.com/vamanea/linux-magicbook/commit/b855efb02268677d84dac4b9e27b1c5c9425d81d.patch
---
Changes in v4:
- Dropped output-foo properties from TLMM pins
- Sorted pins by their index
- Dropped data-lanes from mdss_dpX to use the default (4-lane)
- Added a space before the opening bracket in the comment
- Link to v3: https://lore.kernel.org/linux-arm-msm/20260620175210.19563-1-mail@xxxxxxxxxxx

Changes in v3:
- Update sound model to the board's name
- Dropped unnecessary output-foo properties as they are controlled by the driver
- Reordered properties alphabetically where needed
- Updated mdss_dp0_out from 2 to 4 data lanes
- Dropped extraneous USB related comments
- Link to v2: https://lore.kernel.org/linux-arm-msm/20260515172926.16597-1-mail@xxxxxxxxxxx

Changes in v2:
- Disabled eDP;
- Dropped displayport dai links (they weren't tested);
- Dropped SBU MUXes as they make DP over USB-C unreliable;
- Link to v1: https://lore.kernel.org/linux-arm-msm/20260501155612.5490-1-mail@xxxxxxxxxxx
---
Konstantin Shabanov (4):
  dt-bindings: vendor-prefixes: Add HONOR
  dt-bindings: arm: qcom: Add HONOR MagicBook Art 14
  arm64: dts: qcom: Add HONOR MagicBook Art 14 device tree
  firmware: qcom: scm: Allow QSEECOM on Honor Magicbook Art 14

 .../devicetree/bindings/arm/qcom.yaml         |    1 +
 .../devicetree/bindings/vendor-prefixes.yaml  |    2 +
 arch/arm64/boot/dts/qcom/Makefile             |    2 +
 .../qcom/x1e80100-honor-magicbook-art-14.dts  | 1305 +++++++++++++++++
 drivers/firmware/qcom/qcom_scm.c              |    1 +
 5 files changed, 1311 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/x1e80100-honor-magicbook-art-14.dts


base-commit: 4edcdefd4083ae04b1a5656f4be6cd83ae919ef4
--
2.54.0