[Intel-gfx] [RFC PATCH 0/2] suppress the wrong long hotplug events

Vinod Govindapillai vinod.govindapillai at intel.com
Mon Mar 14 22:58:35 UTC 2022


Monitors like LG 27UL650-W, 27UK850 goes into power sleep state
and generates long duration hotplug events even when the monitor
is connected for display. Here is a proposal to detect and
suppress such hotplug events by "sleep" for 2 secs for power
state monitor become available before enable atomic commit.
A debugfs entry is created to enable the suppression of the
hotplug event in such scenarios.

Cc: Imre Deak <imre.deak at intel.com>

Mohammed Khajapasha (2):
  drm/i915/display: Add disable wait time for power state connector
  drm/i915/display: Add sleep for power state connector

 .../gpu/drm/i915/display/intel_connector.c    |  3 +
 drivers/gpu/drm/i915/display/intel_display.c  | 80 +++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_display.h  |  8 ++
 .../drm/i915/display/intel_display_debugfs.c  | 58 ++++++++++++++
 .../drm/i915/display/intel_display_debugfs.h  |  7 ++
 .../drm/i915/display/intel_display_types.h    |  2 +
 drivers/gpu/drm/i915/i915_drv.h               |  2 +
 7 files changed, 160 insertions(+)

-- 
2.25.1



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