[PATCH 0/2] Enable_psr kernel parameter changes

Jouni Högander jouni.hogander at intel.com
Mon Jul 7 10:47:31 UTC 2025


Currently setting enable_psr kernel parameter to != -1 is disabling
Panel Replay and Early Transport. This patch set is changing
enable_psr meaning as follows:

-1 = PSR1 : yes, PSR2 = yes, Panel Replay : yes
 0 = PSR1 : no,  PSR2 = no,  Panel Replay : no
 1 = PSR1 : yes, PSR2 = no,  Panel Replay : yes
 2 = PSR1 : yes, PSR2 = yes, Panel Replay : no

I.e. 1 disables PSR2 and 2 disables Panel replay. 0 disables PSR/Panel
Replay completely. Enable_psr parameter doesn't impact Early Transport
anymore.

Jouni Högander (2):
  drm/i915/psr: Do not disable Early Transport when enable_psr is set
  drm/i915/psr: Do not disable Panel Replay if PSR2 is disabled

 .../drm/i915/display/intel_display_params.c   |  3 +-
 drivers/gpu/drm/i915/display/intel_psr.c      | 33 +++++++++----------
 2 files changed, 16 insertions(+), 20 deletions(-)

-- 
2.43.0



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