Re: [PATCH] fix tulip suspend/resume

[Benjamin Herrenschmidt <benh@kernel.crashing.org>]

> What PM toplevel core changes are you referring to?  I've look over the
> changes to pm_ops and they seem to make sense.  Still I almost wonder if
> we should make the entire thing arch specific code, and then have this
> code call things like device_suspend().  If mac hardware required that
> many new hooks, then other platforms might require even more.

That is exactly the debate. Patrick thinks the whole thing should be
arch code and kernel/power/* just provices "library" routines to call
(like the freezer, swsusp stuff, etc...), Pavel wants to share as much
code as possible in a single place.

I have no real strong preference, I tend to be a bit more on Patrick's
side here. I can do either way, but we need to decide. On one case, I
would do a patch removing most of kernel/power/main.c and disk.c (they
are mostly redundant anyway) and replacing with a simple mecanism where
the arch provides a table of state names + function to call for sysfs.
On the other case, just merge my patch adding all the new hooks.

Ben.