[Intel-gfx] [PATCH] drm/i915/display: Suspend MST topology manager before destroy fbdev

[José Roberto de Souza]

MST do topology probe in threads, so this running threads needs to be
flushed before fbdev is destroyed as when a new MST node is found it
calls drm_kms_helper_hotplug_event() that calls fbdev functions

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=109964
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 8f2770951459..372dd48691cf 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -17989,6 +17989,13 @@ void intel_modeset_driver_remove(struct drm_i915_private *i915)
 	 */
 	intel_hpd_poll_fini(i915);
 
+	/*
+	 * MST do topology probe in threads, so this running threads needs to
+	 * be flushed before fbdev is destroyed as when a new MST node is found
+	 * it call drm_kms_helper_hotplug_event() that calls fbdev functions
+	 */
+	intel_dp_mst_suspend(i915);
+
 	/* poll work can call into fbdev, hence clean that up afterwards */
 	intel_fbdev_fini(i915);
 
-- 
2.24.0