From b5470b036e14d063655cc01d22ea5d727042860a Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 1 Nov 2013 16:25:10 -0400
Subject: [PATCH] drm/radeon: implement pci config reset for evergreen/cayman
 (v2)

pci config reset is a low level reset that resets
the entire chip from the bus interface.  It can
be more reliable if soft reset fails.

v2: put behind module parameter

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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