From: Thierry Reding <treding@nvidia.com>
Date: Mon, 8 Dec 2014 15:03:53 +0000 (+0100)
Subject: drm/tegra: dc: Wait for idle when disabled
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~75^2~25^2~30
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=86df256f301fc5f215160d8c8e7093f605d40a14;p=pandora-kernel.git

drm/tegra: dc: Wait for idle when disabled

When disabling the display controller, stop it and wait for it to become
idle. Doing so ensures that no further accesses to the framebuffer occur
and the buffers can be safely unmapped or freed.

Signed-off-by: Thierry Reding <treding@nvidia.com>
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