I'm not sure if this is the right place to ask.. but it'd be real nice if
of_compatible was moved out of ofw_subr.c and into a more generic file..  
say one included by default on the macppc side.

Or perhaps it (ofw_subr.c)  could be made dependent upon something other 
than ofbus?

Having of_compatible would make probing for the various sound chips a bit
more consistant.

- alex