commit '3cf71bc9904d ("drm/i915: Re-apply "Perform link quality check,
unconditionally during long pulse"")' applies a work around for monitors
that don't signal link loss. Apply this only for external displays as
eDP features like PSR when active will have the link turned off and the
driver ends up retraining the link seeeing that link is not synchronized.
Cc: Lyude Paul <ly...@redhat.com>
Cc: Jan-Marek Glogowski <glo...@fbihome.de>
Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.v...@intel.com>
References: 3cf71bc9904d ("drm/i915: Re-apply "Perform link quality check,
unconditionally during long pulse"")
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandi...@intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index befdaa076d8c..c59b2f78f41a 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5072,7 +5072,9 @@ intel_dp_full_detect(struct intel_connector *connector,
*/
status = connector_status_disconnected;
goto out;
- } else {
+ }
+
+ if (!intel_dp_is_edp(intel_dp)) {
/*
* Check link status in case the link went out of
* synchronization and the sink did not tell us.
--
2.17.1
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