[RFC 0/3] Link off between frames for edp

Animesh Manna animesh.manna at intel.com
Mon Mar 4 07:43:00 UTC 2024


Link Off Between Active Frames (LOBF) allows an eDP link to be turned Off and On
durning long VBLANK durations without enabling any of the PSR/PSR2/PR modes of operation.

Bspec: 71477

Note: This is a feature has dependency on ALPM, AS SDP. So the below changes
are done on top of the following patch series where review is ongoing. So
compilation issue expected from CI.
https://patchwork.freedesktop.org/series/129938/
https://patchwork.freedesktop.org/series/126829/

These patches are not tested, sending early for review feedback

Signed-off-by: Animesh Manna <animesh.manna at intel.com>

Animesh Manna (3):
  drm/i915/alpm: Move alpm parameters from intel_psr
  drm/i915/alpm: Add compute config for lobf
  drm/i915/alpm: Enable lobf from source in ALPM_CTL

 .../drm/i915/display/intel_display_types.h    | 27 +++---
 drivers/gpu/drm/i915/display/intel_dp.c       |  1 +
 drivers/gpu/drm/i915/display/intel_psr.c      | 92 ++++++++++++++-----
 drivers/gpu/drm/i915/display/intel_psr.h      |  3 +
 4 files changed, 89 insertions(+), 34 deletions(-)

-- 
2.29.0



More information about the Intel-gfx mailing list