[Intel-gfx] [PATCH 0/5] tgl: MST support

[Lucas De Marchi]

Additional code to support more than one display when using MST with
TGL. It's still WIP! From what I could check on my tests we are correctly
tracking the master transcoder and setting it accordingly on
TRANS_DDI_FUNC_CTL and DP_TP_CTL.

I tried also setting MST mode on the slave's DP_TP_CTL. I could get the
second display to show up some times and we don't get stuck on "timeout
waiting for ACT" error message.  This is not according to the spec
though, and it still doesn't work most of the time. So... I didn't add
it here.

I guess now I need another pair of eyes to check what I'm doing wrong
since continuing to stare at the spec and code isn't helping. José,
Imre?

José Roberto de Souza (2):
  drm/i915: Add for_each_new_intel_connector_in_state()
  drm/i915/tgl: Select master transcoder in DP MST

Lucas De Marchi (3):
  drm/i915: add wrappers to get intel connector state
  drm/i915/tgl: do not enable transcoder clock twice on MST
  drm/i915: avoid reading DP_TP_CTL twice

 drivers/gpu/drm/i915/display/intel_ddi.c      |  54 +++---
 drivers/gpu/drm/i915/display/intel_display.c  |  16 ++
 drivers/gpu/drm/i915/display/intel_display.h  |   8 +
 .../drm/i915/display/intel_display_types.h    |  21 +++
 drivers/gpu/drm/i915/display/intel_dp_mst.c   | 159 +++++++++++++++++-
 drivers/gpu/drm/i915/display/intel_dp_mst.h   |   2 +
 6 files changed, 236 insertions(+), 24 deletions(-)

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2.23.0