drm/i915: Move audio deinit after disabling polling

Deinitialize audio during driver unload after disabling polling. This is
in preparation to do all the display HW init/deinit steps at a point
where no HPD IRQ or polling initiated connector detection or modeset can
change the HW state. This may still happen here via an HPD IRQ ->
hotplug detection work or a connector sysfs (state/detect) access, but
these will be prevented by later changes in this patchset.

Link: https://patchwork.freedesktop.org/patch/msgid/20240104083008.2715733-4-imre.deak@intel.com
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>

drivers/gpu/drm/i915/display/intel_display_driver.c

@@ -486,14 +486,15 @@ void intel_display_driver_unregister(struct drm_i915_private *i915)
 		return;
 
 	intel_fbdev_unregister(i915);
-	intel_audio_deinit(i915);
-
 	/*
 	 * After flushing the fbdev (incl. a late async config which
 	 * will have delayed queuing of a hotplug event), then flush
 	 * the hotplug events.
 	 */
 	drm_kms_helper_poll_fini(&i915->drm);
+
+	intel_audio_deinit(i915);
+
 	drm_atomic_helper_shutdown(&i915->drm);
 
 	acpi_video_unregister();