From: Andrew Lunn <andrew@lunn.ch>
Date: Sun, 18 Nov 2012 10:44:56 +0000 (+0100)
Subject: dma: mv_xor: Add a device_control function
X-Git-Tag: omap-for-v3.8/fixes-for-merge-window-v4-signed~12^2~1^2~6^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=34c93c8657935d30649e777c4aa05f74f16aa418;p=pandora-kernel.git

dma: mv_xor: Add a device_control function

The dmatest module for DMA engines calls

device_control(dtc->chan, DMA_TERMINATE_ALL, 0);

after completing the tests. The documentation in
include/linux/dmaengine.h suggests this function is optional and
dma_async_device_register() also does not BUG_ON() when not passed a
function. However, dmatest is not the only code in the kernel
unconditionally calling device_control. So add an implementation
indicating all operations are not implemented.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---

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