From: Wolfgang Muees <wolfgang.mues@auerswald.de>
Date: Fri, 5 Mar 2010 21:43:41 +0000 (-0800)
Subject: mmc: at91_mci: use DMA buffer for read
X-Git-Tag: v2.6.34-rc1~78
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86ee26f5b0a889bf7e9f6351bbf01516d0686461;p=pandora-kernel.git

mmc: at91_mci: use DMA buffer for read

Convert the read to use the DMA buffer as well.  The old code was doing
double-buffering DMA with the PDC; no way to make it work.  Replace it
with a single-PDC approach.  It also simplify things removing the need for
a pre_dma_read() function.

[nicolas.ferre@atmel.com coding style modifications]
Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Andrew Victor <avictor.za@gmail.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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