From: Imre Deak <imre.deak@xxxxxxxxx> commit a31f62f693c87316eea1711ab586f8f5a7d7a0b3 upstream. A registered eDP connector is considered to be always connected, so it's unnecessary to poll it for a connect/disconnect event. Polling it involves AUX accesses toggling the panel power, which in turn can generate a spurious short HPD pulse and possibly a new poll cycle via the short HPD handler runtime resuming the device. Avoid this by disabling the polling for eDP connectors. This avoids IGT tests timing out while waiting for the device to runtime suspend, the timeout caused by the above runtime resume->poll->suspend-> resume cycle keeping the device in the resumed state. Testcase: igt/kms_pm_rpm/unverisal-planes Reviewed-by: Jonathan Cavitt <jonathan.cavitt@xxxxxxxxx> Signed-off-by: Imre Deak <imre.deak@xxxxxxxxx> Link: https://patchwork.freedesktop.org/patch/msgid/20241009194358.1321200-3-imre.deak@xxxxxxxxx Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx> --- drivers/gpu/drm/i915/display/intel_dp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 31cec30079509..6ce3d9c4904eb 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -6842,7 +6842,8 @@ intel_dp_init_connector(struct intel_digital_port *dig_port, if (!HAS_GMCH(dev_priv) && DISPLAY_VER(dev_priv) < 12) connector->interlace_allowed = true; - intel_connector->polled = DRM_CONNECTOR_POLL_HPD; + if (type != DRM_MODE_CONNECTOR_eDP) + intel_connector->polled = DRM_CONNECTOR_POLL_HPD; intel_connector->base.polled = intel_connector->polled; intel_connector_attach_encoder(intel_connector, intel_encoder); -- 2.47.0
