Changes:
- Clean up and re-work Surface Aggregator Module support for the
Surface Pro 8.
- Fix a bug causing time-outs when unloading drivers of detached
Surface Aggregator Module devices such as contained in the Surface
Book 3 base and the Surface Pro 8 keyboard cover.
- Move Surface Aggregator devices of the Surface Book 3 base from the
base hub to the KIP hub introduced for the Surface Pro 8.
Links:
- kernel: e716df100b
- SAM: 3cfb0b76c8
Changes:
- Add Surface Aggregator Module support for Surface Pro 8.
- Add keyboard-cover support (keyboard and touchpad)
- Add battery status support
- Add platform profile support
Links:
- kernel: 43661b9f92
Applying patches with 'patch' creates problems when renaming files and
changing them later in a different change in the the same patch file,
causing patch to complain that the file does not exist. So use 'git am'
instead.
Cloning the full branch takes quite a long time on the Ubuntu mainline
repo. The idea was that this would enable us to use `git am -3`, i.e.
3way merges, but that quite often didn't work in practice anyways. So go
back to a shallow clone.
Applying patches without git creates problems when renaming files and
changing them later in a different change in the the same patch file,
causing patch to complain that the file does not exist.
Changes:
- Add support for Surface Aggregator devices on the Surface Laptop
Studio. This includes support for battery status information,
keyboard, touchpad, as well as other HID devices, and performance /
platform profiles.
- Add support for wake via lid on the Surface Laptop Studio.
Recent Ubuntu mainline versions have enabled UBSAN. UBSAN has a runtime
cost and should only be enabled for debugging and testing.
Furthermore, UBSAN actively causes problems on the Surface Pro 4 and
Surface Book 1, preventing them from waking from suspend in some
instances. Disabling UBSAN should work around issue #585.