[PATCH]: powerpc: clarify use of twi/isync in io macros

[Segher Boessenkool]

> My moral fiber did twinge before I hit the send button,
> but I confused it with a muscle spasm.

Heh.

> Signed-off-by: Linas Vepstas <linas at austin.ibm.com>
> Signed-off-by: Segher Boessenkool <segher at kernel.crashing.org>

The other way around, or change mine to a From: -- you took my
stuff, not the other way around.  Oh well, doesn't matter as
far as I'm concerned.  Some people think that keeping the chain
in the correct order is very important though.  Let's just say
it was a cooperative work and fool them all :-)


Segher