From 648ac05c4f8a8aea908c7dff81ceffe003e28561 Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Wed, 10 Feb 2010 16:52:45 +1000
Subject: [PATCH] drm/radeon/kms: retry auxch on 0x20 timeout value.

ATOM appears to return 0x20 which seems to mean some sort of timeout.

retry the transaction up to 10 times before failing, this
makes DP->VGA convertor we bought work at least a bit more predictably.

Signed-off-by: Dave Airlie <airlied@redhat.com>
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