tree ec798a9f5644a005432ea3c435c8d563c2cc5abd
parent 3f75c6161f28e6a17c547daf552c1127c805c5e7
author Andy Walls <awalls@radix.net> 1226972926 -0300
committer Mauro Carvalho Chehab <mchehab@redhat.com> 1230637090 -0200

V4L/DVB (9725): cx18: Remove unnecessary MMIO accesses in time critical irq handling path

Remove unnecessary MMIO accesses in time critical irq handling path.  Also
ensured that the mailbox ack field is read in last, so we know for sure if we
have a stale mailbox or not on receipt.

Signed-off-by: Andy Walls <awalls@radix.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>