[Intel-gfx] [PATCH 0/4] Detect DP displays based on sink count change

Sivakumar Thulasimani sivakumar.thulasimani at intel.com
Thu Aug 27 01:48:28 PDT 2015


From: "Thulasimani,Sivakumar" <sivakumar.thulasimani at intel.com>

These patches together help detect DP displays on short pulse HPD 
and pass the respective compliance test case (4.2.2.8)

v2: modifed first patch so we will read sink_count independent of
downstream ports availablility.
v3: split first patch so crtc enabled check is done in one patch
and rest of sink_count changes in second patch.

Thulasimani,Sivakumar (4):
  drm/i915: read dpcd 0 - 12 & link_status always
  drm/i915: read sink_count dpcd always
  drm/i915: Save sink_count for tracking changes to it
  drm/i915: force full detect on sink count change

 drivers/gpu/drm/i915/intel_dp.c  |   57 +++++++++++++++++++++++---------------
 drivers/gpu/drm/i915/intel_drv.h |    1 +
 2 files changed, 35 insertions(+), 23 deletions(-)

-- 
1.7.9.5



More information about the Intel-gfx mailing list