From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Wed, 27 Jul 2011 12:21:29 +0000 (+0000)
Subject: dmaengine: at_hdmac: improve power management routines
X-Git-Tag: v3.2-rc1~47^2~18^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c0ba5947370a0900b1823922fc4faf41515bc901;p=pandora-kernel.git

dmaengine: at_hdmac: improve power management routines

Save/restore dma controller state across a suspend-resume sequence.
The prepare() function will wait for the non-cyclic channels to become idle.
It also deals with cyclic operations with the start at next period while
resuming.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

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