From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 14 Jun 2012 19:54:57 +0000 (-0400)
Subject: drm/radeon: fix regression in dynpm due to multi-ring rework
X-Git-Tag: v3.5-rc4~34^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0ec0612a80f957000999c3f7b31a84e3558c719d;p=pandora-kernel.git

drm/radeon: fix regression in dynpm due to multi-ring rework

Not all asics have all rings, so make sure the ring is ready
before attempting to check it in the dynpm work handler.

Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=43367

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

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