From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 25 Mar 2009 16:13:24 +0000 (-0700)
Subject: dma: i.MX31 IPU DMA robustness improvements
X-Git-Tag: v2.6.30-rc1~225^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d47bae004f062630f69f7f83d098424252e232d;p=pandora-kernel.git

dma: i.MX31 IPU DMA robustness improvements

Add DMA error handling to the ISR, move common code fragments to functions, fix
scatter-gather element queuing in the ISR, survive channel freeing and
re-allocation in a quick succession.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
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