c17133869b265210418959a909d259
author Alex Deucher <alexdeucher@gmail.com> 1268850555 -0400
committer Dave Airlie <airlied@redhat.com> 1274170850 +1000

drm/radeon/kms: wait for gpu idle before changing power mode

set proper wait condition as noted by Rafał Miłecki.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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