drm/xe/display: Remove hpd cancel work sync from runtime pm path

This function will synchronously cancel and wait for many display
work queue items, which might try to take the runtime pm reference
causing a bad deadlock. So, remove it from the runtime_pm suspend patch.

Reported-by: Imre Deak <[email protected]>
Reviewed-by: Imre Deak <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
Signed-off-by: Rodrigo Vivi <[email protected]>

Author: rodrigovivi

drivers/gpu/drm/xe/display/xe_display.c

@@ -312,7 +312,8 @@ static void __xe_display_pm_suspend(struct xe_device *xe, bool runtime)
 
 	xe_display_flush_cleanup_work(xe);
 
-	intel_hpd_cancel_work(xe);
+	if (!runtime)
+		intel_hpd_cancel_work(xe);
 
 	if (!runtime && has_display(xe)) {
 		intel_display_driver_suspend_access(display);