broadcom: Refine expansion register access routine

This patch makes the expansion register access routines a little more
formal.  They will be used by the following bcm50610 support patch.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Matt Carlson 2008-11-03 16:56:29 -08:00 committed by David S. Miller
commit 042a75b99f