(In reply to Alex Deucher from comment #1)
> Are you sure that's the right commit?  I don't see any functional change. 
> It just switches a direct function call to a function pointer.

Hmm, I just built a fresh kernel reset on that and testing in the same way as
my normal use case (TV off at boot) it is a bad.

There is a but though, in that it is possible to make it work by doing an extra
off/on or TV on from boot. When I first noticed the issue on head I tried and
failed to get sound doing the same sort of thing.

Maybe some pot luck is involved, maybe there is more than one issue - all the
goods during the bisect were just tested once with boot from TV off.

So the bisect is suspect - I'll have to play around more when I have time.