From 87c0e0e5133e252a6d3d561dd0caeec0244ea9a5 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 6 Jul 2010 08:54:34 +1000
Subject: [PATCH] drm/nv50: rewrite display irq handler

The previous handler basically worked correctly for a full-blown mode
change.  However, it did nothing at all when a partial (encoder only)
reconfiguation was necessary, leading to the display hanging on certain
types of mode switch.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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