From e257e1563f28890f54b5f82861373bb4b32dd770 Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Fri, 6 May 2011 19:56:53 +0200
Subject: [PATCH] dmaengine: at_hdmac: use descriptor chaining help function

A little function helps to chain descriptors:
it is already used in cyclic dma operations, now use it in memcpy and slave_sg
preparation functions.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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