6f77b2ac62
[why] Need a tool to retrigger a virtual hotplug for testing purposes with force redetection in both DC and DM. [how] Emulate handle_hpd_irq for connector as if usermode would trigger a hotplug. Perform DC link discovery, DM connector update, and DM force atomic commit. In order to trigger HPD on the connector user needs to echo 1 into "trigger_hotplug" debugfs entry on its respective connector. Signed-off-by: Eryk Brol <eryk.brol@amd.com> Signed-off-by: Mikita Lipski <mikita.lipski@amd.com> Reviewed-by: Mikita Lipski <Mikita.Lipski@amd.com> Acked-by: Eryk Brol <eryk.brol@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>