From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Wed, 8 Oct 2014 15:19:14 +0000 (+0200)
Subject: imx-drm: ipuv3-plane: enable double buffering
X-Git-Tag: omap-for-v3.20/drop-legacy-3517~70^2~487
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=356f952472f24b3677f191f534479d7d1be0183e;p=pandora-kernel.git

imx-drm: ipuv3-plane: enable double buffering

This allows to update the buffer base address while the DMA
channel is running. It is needed to flip the frame buffer of
an active plane.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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