From 4e253d23003b54c88d0919d6088be74f00eec3c7 Mon Sep 17 00:00:00 2001
From: Jan Nikitenko <jan.nikitenko@gmail.com>
Date: Mon, 1 Dec 2008 13:13:56 -0800
Subject: [PATCH] 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>
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