[PATCH 0/9][SRU][L] Lost display on built-in monitor after suspend

[AceLan Kao]

From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>

BugLink: https://launchpad.net/bugs/2001599

[Impact]
On some laptops, the eDP blinking slowly after resuming from S3

[Fix]
The series of patches which are in drp-tip(v6.3-rc1) fix the isue
https://patchwork.freedesktop.org/series/110693/

4c0eb35fc103 drm/i915: Improve PPS debugs
ed5509d1d451 drm/i915: Fix whitespace
1e47e035bb73 drm/i915: Print the PPS registers using consistent format
ba21bb24810f drm/i915: Reject unusable power sequencers
d83804f22d85 drm/i915: Extend dual PPS handlind for ICP+
bf38bba3e7d6 drm/i915: Try to use the correct power sequencer intiially on bxt/glk
209074fd5a82 drm/i915: Generalize the PPS vlv_pipe_check() stuff
3f9ffce5765d drm/i915: Do panel VBT init early if the VBT declares an explicit panel type
f70f8153e364 drm/i915: Introduce intel_panel_init_alloc()

[Test]
ODM and I confirmed the issue is fixed after the patches have been applied.

[Where problems may occur]
This series of patches fixes a dedicate issue and change the power
sequence for the eDP panel. eDP panel may stay blank if the rules are wrong.
OEM kernel has carried this series of patches since early Feb., we didn't
get any report about the panel issue.

Ville Syrjälä (9):
  drm/i915: Introduce intel_panel_init_alloc()
  drm/i915: Do panel VBT init early if the VBT declares an explicit
    panel type
  drm/i915: Generalize the PPS vlv_pipe_check() stuff
  drm/i915: Try to use the correct power sequencer intiially on bxt/glk
  drm/i915: Extend dual PPS handlind for ICP+
  drm/i915: Reject unusable power sequencers
  drm/i915: Print the PPS registers using consistent format
  drm/i915: Fix whitespace
  drm/i915: Improve PPS debugs

 drivers/gpu/drm/i915/display/icl_dsi.c        |   2 +-
 drivers/gpu/drm/i915/display/intel_bios.c     |  56 ++-
 drivers/gpu/drm/i915/display/intel_bios.h     |  11 +-
 .../gpu/drm/i915/display/intel_connector.c    |   2 +-
 .../drm/i915/display/intel_display_types.h    |  24 +-
 drivers/gpu/drm/i915/display/intel_dp.c       |  19 +-
 drivers/gpu/drm/i915/display/intel_lvds.c     |   4 +-
 drivers/gpu/drm/i915/display/intel_panel.c    |   9 +
 drivers/gpu/drm/i915/display/intel_panel.h    |   1 +
 drivers/gpu/drm/i915/display/intel_pps.c      | 360 +++++++++++++-----
 drivers/gpu/drm/i915/display/intel_pps.h      |   2 +-
 drivers/gpu/drm/i915/display/intel_sdvo.c     |   2 +-
 drivers/gpu/drm/i915/display/vlv_dsi.c        |   2 +-
 drivers/gpu/drm/i915/i915_reg.h               |   1 +
 14 files changed, 364 insertions(+), 131 deletions(-)

-- 
2.34.1