Please consider commit ac1e55b1fdb27c1b07a0a6fe519f1291ff1e7d40 ACPI / button: make module loadable when booted in non-ACPI mode at least for v4.16-stable. It likely applies much further back, but the relevance of v4.16 is that it is used in Fedora 28, and without this patch, arm64 systems booting in DT mode cannot run a desktop GUI on F28 if they rely on the nouveau driver. Regards, Ard.
