From: Jan Nikitenko <jan.nikitenko@gmail.com>
Date: Mon, 1 Dec 2008 21:13:56 +0000 (-0800)
Subject: spi: au1550_spi full duplex dma fix
X-Git-Tag: v2.6.28-rc7~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4e253d23003b54c88d0919d6088be74f00eec3c7;p=pandora-kernel.git

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>
---

Reading git-diff-tree failed