From 9a6660308c44a4fb8f7d6bcec6e4fb4c9afa4750 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Wed, 8 Oct 2014 17:19:15 +0200
Subject: [PATCH] imx-drm: ipuv3-plane: fix plane updates for active planes

While the DMA channel is running, it is not allowed to change anything
but the inactive (double) buffer base address, so resizing a plane or
changing to a frame buffer with different pixel format is not possible.

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