From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 23 Sep 2014 14:18:14 +0000 (+0300)
Subject: dmaengine: dw: enable and disable controller when needed
X-Git-Tag: omap-for-v3.19/prcm-cleanup~37^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=99d9bf4ed27c63d5559e31d112f71af655c7182b;p=pandora-kernel.git

dmaengine: dw: enable and disable controller when needed

Enable controller automatically whenever first user requires for a channel and
disable it when the last user gone.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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