[media] media: omap3isp: hist: Move histogram DMA to DMA engine
Replace the custom OMAP DMA API usage by DMA engine. Feature-wise the driver has lost the ability to get notified of DMA transfers failure through the completion handler, as the DMA engine API doesn't expose that status information. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Sakari Ailus <sakari.ailus@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
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