From: Vinod Koul <vinod.koul@intel.com>
Date: Mon, 25 Jul 2011 14:27:52 +0000 (+0530)
Subject: dmaengine: add helper function for slave_single
X-Git-Tag: v3.2-rc1~47^2~18^2~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=90b44f8ffdf6c66d190ee71b330009bf7f11a208;p=pandora-kernel.git

dmaengine: add helper function for slave_single

For clients which require a single slave transfer and dont want to be bothered
about the scatterlist api, this helper gives simple API for this transfer and
creates single scatterlist for DMA API

Idea from Russell King

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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