drm/xe/display: Add missing HPD interrupt enabling during non-d3cold RPM resume

Atm the display HPD interrupts that got disabled during runtime
suspend, are re-enabled only if d3cold is enabled. Fix things by
also re-enabling the interrupts if d3cold is disabled.

Cc: Rodrigo Vivi <[email protected]>
Reviewed-by: Jonathan Cavitt <[email protected]>
Signed-off-by: Imre Deak <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit bbc4a30)
Signed-off-by: Lucas De Marchi <[email protected]>

Author: ideak

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

@@ -437,6 +437,7 @@ void xe_display_pm_runtime_resume(struct xe_device *xe)
 		return;
 	}
 
+	intel_hpd_init(xe);
 	intel_hpd_poll_disable(xe);
 }