FAILED: patch "[PATCH] drm/amd/display: Update MST edid property every time" failed to apply to 4.16-stable tree

The patch below does not apply to the 4.16-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From: "Jerry (Fangzhi) Zuo" <[email protected]>
Date: Tue, 17 Apr 2018 13:49:48 -0400
Subject: [PATCH] drm/amd/display: Update MST edid property every time

Extended fix to: "Don't read EDID in atomic_check"

Fix display property not observed in GUI display after hot plug.

Call drm_mode_connector_update_edid_property every time in .get_modes hook, due to the fact that edid property is getting removed from usermode ioctl DRM_IOCTL_MODE_GETCONNECTOR each time in hot unplug.

index 305292a9ff80..8c1d084429dc 100644
@@ -253,11 +253,11 @@ static int dm_dp_mst_get_modes(struct drm_connector *connector)
 		if (aconnector->dc_sink)
 			amdgpu_dm_add_sink_to_freesync_module(
 					connector, edid);
-
-		drm_mode_connector_update_edid_property(
-						&aconnector->base, edid);
 	}
 
+	drm_mode_connector_update_edid_property(
+					&aconnector->base, aconnector->edid);
+
 	ret = drm_add_edid_modes(connector, aconnector->edid);
 
 	return ret;