[Bug 238037] [PATCH] Implement ig4 suspend/resume

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238037

--- Comment #10 from Austin Shafer <ashafer at badland.io> ---
(In reply to J.R. Oldroyd from comment #9)

Well loading the modules manually in that order (ig4 before acpi_iichid) would
get rid of the dependency issues I mentioned. They won't get resumed in the
same order because it's done automatically according to the newbus node
location, and I think you'd still run into the same issue.

With that being said, it's definitely possible I'm missing registers. It is
suspicious that it works fine when it immediately resumes. Does it work 100% of
the time when immediately resuming? Maybe if the dragonfly updates are what
actually fixes it I can just add them to the resume methods.

I wish I could test this myself. I don't have access to the laptop I originally
used, and I'm not sure if I'll be able to find another.

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