[PATCH libinput 0/3] Device-tree-based model detection

[Paul Kocialkowski]

This series introduces device-tree-based model detection and uses it for
fine tuning on the Chromebook R13 CB5-312T.

It applies on top of my series fixing the default range values for PS/2
Elantech touchpads.

For this to work properly, a patch in systemd (that is still under
review) is required: https://github.com/systemd/systemd/pull/5837