From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 18 Aug 2011 14:55:27 +0000 (+0200)
Subject: dma: shdma: transfer based runtime PM
X-Git-Tag: v3.2-rc1~47^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a1cd9ad87979744e1510782b25c38feb9602739;p=pandora-kernel.git

dma: shdma: transfer based runtime PM

Currently the shdma dmaengine driver uses runtime PM to save power, when
no channel on the specific controller is requested by a user. This patch
switches the driver to count individual DMA transfers. That way the
controller can be powered down between transfers, even if some of its
channels are in use.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
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