drm/radeon: update line buffer allocation for dce8
authorAlex Deucher <alexander.deucher@amd.com>
Mon, 19 Aug 2013 15:39:27 +0000 (11:39 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Fri, 30 Aug 2013 20:31:01 +0000 (16:31 -0400)
commitbc01a8c7a24169f8b111b7dda6f5d8e7088309af
tree022c589678297c15a2577693ee2cd798377419b8
parent290d24576ccf1aa0373d2185cedfe262d0d4952a
drm/radeon: update line buffer allocation for dce8

We need to allocate line buffer to each display when
setting up the watermarks.  Failure to do so can lead
to a blank screen.  This fixes blank screen problems
on dce8 asics.

Based on an initial fix from:
Jay Cornwall <jay.cornwall@amd.com>

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/radeon/cik.c
drivers/gpu/drm/radeon/cikd.h