[PATCH 0/4][SRU][Jammy] Screen sometimes can't update on Intel Alder Lake GPUs

[AceLan Kao]

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

BugLink: https://bugs.launchpad.net/bugs/1967274

[Impact]
The backlight power won't come back after the meta + l to turn off the
display on ADL machines.

[Fix]
Below series of commits from v5.17 fix this issue
1c7ab5affa5e drm/i915/xelpd: Add Pipe Color Lut caps to platform config
17815f624a90 drm/i915/xelpd: Enable Pipe Degamma
e83c18cffaed drm/i915/xelpd: Enable Pipe color support for D13 platform

[Test]
Verified on at least 2 different machines, the backlight is on after the
screen dimmed with touchpad movement or key stroke.

[Where problems could occcur]
The patches only affect ADL-P and up.

Uma Shankar (3):
  drm/i915/xelpd: Enable Pipe color support for D13 platform
  drm/i915/xelpd: Enable Pipe Degamma
  drm/i915/xelpd: Add Pipe Color Lut caps to platform config

Ville Syrjälä (1):
  drm/i915: Use unlocked register accesses for LUT loads

 drivers/gpu/drm/i915/display/intel_color.c | 151 ++++++++++++---------
 drivers/gpu/drm/i915/display/intel_dsb.c   |   4 +-
 drivers/gpu/drm/i915/i915_pci.c            |   5 +-
 3 files changed, 90 insertions(+), 70 deletions(-)

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2.25.1