From 4226dd86b10ac44f8e98599f6a73e3a1b929f8eb Mon Sep 17 00:00:00 2001
From: Fabio Baltieri <fabio.baltieri@linaro.org>
Date: Thu, 13 Dec 2012 13:46:16 +0100
Subject: [PATCH] dmaengine: ste_dma40: add a done queue for completed
 descriptors

This is to keep the active queue for only those transfers which are
actually active in the hardware.  Descriptors will be moved to the done
queue after they are completed in the hardware (interrupt handler) but
before all the cleanup work has been completed (tasklet).

Mostly based on a previous patch by Rabin Vincent.

Cc: Rabin Vincent <rabin.vincent@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Fabio Baltieri <fabio.baltieri@linaro.org>
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