diff options
| author |   Ville Syrjälä <ville.syrjala@linux.intel.com> | 2014-06-27 19:49:57 +0300 |
|---|---|---|
| committer |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-08-08 17:43:56 +0200 |
| commit | 3dd7b97458e8aa2d8985b46622d226fa635071e7 (patch) | |
| tree | efa9cc74dc12fbd04aeafa498f9f9d3ecf9a4b3b /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | drm/i915: Add cherryview_update_wm() (diff) | |
| download | linux-dev-3dd7b97458e8aa2d8985b46622d226fa635071e7.tar.xz linux-dev-3dd7b97458e8aa2d8985b46622d226fa635071e7.zip | |
drm/i915: Hack to tie both common lanes together on chv
It looks like frobbing the cmnreset line on pne PHY disturbs the other
PHY on chv. The result is a black screen. On HDMI it's just a flash of
black, but DP usually falls over and can't get back up.
As a workaround set up the power domains so that both common lane
wells power up and down together. I also tried leaving the cmnreset
deasserted even the if the power well goes down but that didn't seem
acceptable to the PHY.
Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions