linux-kernel - [PATCH v3 0/3] X1E Dell XPS 9345 support

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Message-ID: <20240927094544.6966-1-alex.vinarskis@gmail.com>
Date: Fri, 27 Sep 2024 11:44:17 +0200
From: Aleksandrs Vinarskis <alex.vinarskis@...il.com>
To: Bjorn Andersson <andersson@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
	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>,
	Aleksandrs Vinarskis <alex.vinarskis@...il.com>
Subject: [PATCH v3 0/3] X1E Dell XPS 9345 support

Introduce support for the mentioned laptop.

Very similar to other X1E laptops, device tree was derived by analyzing dtsi of
existing models and ACPI tables of this laptop [1]. Most notable difference were
* TZ protected SPI19.
* Keyboard only working after suspend/resume sequence, will do a follow up patch
to i2c-hid.
* Lots of small deviations in LDOs voltages.

Successfully tested with Debian 12 and Gnome, although this required additional
patches, namely harcode GPU chipid, apply [2] and _revert_ [3] - same as in Abel
Vesa's branches. Without last two the boot process is terminated by TZ. Firmware
for GPU/aDSP/cDSP was extracted from Windows, WiFi firmware from upstream
linux-firmware.

Quite a few things alraedy work, details in patches, quite a few still in WIP or
TODOs. Since fixing these may take me a while due to lack of documentation,
sending current progress as its very much usable.

[1] https://github.com/aarch64-laptops/build/blob/master/misc/dell-xps-9345/acpi/DSDT.dsl
[2] https://lore.kernel.org/all/20240830-x1e80100-bypass-pdc-v1-1-d4c00be0c3e3@linaro.org/
[3] https://lore.kernel.org/all/20240708-x1e80100-pd-mapper-v1-1-854386af4cf5@linaro.org/

--------

Changes to V2:
* Fix uart21 missing alias
* Fix redundant mdss_dp3 defines
* Fix touchscreen i2c address
* Update commit description - OLED panel reported working
* Update commit description - touchscreen reported working
* Update commit description - battery info reported working
* Update commit description - add keyboard patches link

--------

Changes to V1:
* Fix misalignments due to wrong tab/space conversion
* Fix regulator namings
* Fix reasonable warnings from `scripts/checkpatch.pl`
* Restructure all (sub)nodes alphabetically

Aleksandrs Vinarskis (3):
  dt-bindings: arm: qcom: Add Dell XPS 13 9345
  firmware: qcom: scm: Allow QSEECOM on Dell XPS 13 9345
  arm64: dts: qcom: Add support for X1-based Dell XPS 13 9345

 .../devicetree/bindings/arm/qcom.yaml         |   1 +
 arch/arm64/boot/dts/qcom/Makefile             |   1 +
 .../dts/qcom/x1e80100-dell-tributo-13.dts     | 863 ++++++++++++++++++
 drivers/firmware/qcom/qcom_scm.c              |   1 +
 4 files changed, 866 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/x1e80100-dell-tributo-13.dts

-- 
2.43.0