commit 4e253d23003b54c88d0919d6088be74f00eec3c7
author Jan Nikitenko <jan.nikitenko@gmail.com> Mon Dec 01 13:13:56 2008 -0800
committer Linus Torvalds <torvalds@linux-foundation.org> Mon Dec 01 19:55:24 2008 -0800
tree 418741f7add461e32f4c2801e8a693f9dbd0455b
parent 6a010b56e9bd2fdb32efd153e1a08305949b6b53

spi: au1550_spi full duplex dma fix

Fix unsafe order in dma mapping operation: always flush data from the
cache *BEFORE* invalidating it, to allow full duplex transfers where the
same buffer may be used for both writes and reads.  Tested with mmc-spi.

Signed-off-by: Jan Nikitenko <jan.nikitenko@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>