[PATCH v4 0/3] X1E Dell XPS 9345 support

[Aleksandrs Vinarskis]

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. 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

--------

Changes to V3:
* Rename device from `tributo-13` to `xps13-9345`
* Update commit description - identify EC over i2c, likely camera model
* Update cover letter - no hacks needed when build on top of linux-next
* v3 link: https://lore.kernel.org/all/20240927094544.6966-1-alex.vinarskis@xxxxxxxxx/

--------

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
* v2 link: https://lore.kernel.org/all/20240921163455.12577-1-alex.vinarskis@xxxxxxxxx/

--------

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
* v1 link: https://lore.kernel.org/all/20240919170018.13672-1-alex.vinarskis@xxxxxxxxx/

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-xps13-9345.dts     | 863 ++++++++++++++++++
 drivers/firmware/qcom/qcom_scm.c              |   1 +
 4 files changed, 866 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/x1e80100-dell-xps13-9345.dts

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2.43.0