drm/amdgpu/display/mst: update mst_mgr relevant variable when long HPD

From Wayne Lin
af8e87f72f9ea4c6915506098e506c4e08d3d49c in linux-6.1.y/6.1.9
f85c5e25fd28fe0bf6d6d0563cf83758a4e05c8f in mainline linux

1 files changed, 12 insertions, 2 deletions

diff --git a/sys/dev/pci/drm/amd/display/dc/core/dc_link.c b/sys/dev/pci/drm/amd/display/dc/core/dc_link.c
index 407297c5f0b..ffe04adb3ff 100644
--- a/sys/dev/pci/drm/amd/display/dc/core/dc_link.c
+++ b/sys/dev/pci/drm/amd/display/dc/core/dc_link.c
@@ -3995,10 +3995,13 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
 	struct fixed31_32 avg_time_slots_per_mtp = dc_fixpt_from_int(0);
 	int i;
 	bool mst_mode = (link->type == dc_connection_mst_branch);
+	/* adjust for drm changes*/
+	bool update_drm_mst_state = true;
 	const struct link_hwss *link_hwss = get_link_hwss(link, &pipe_ctx->link_res);
 	const struct dc_link_settings empty_link_settings = {0};
 	DC_LOGGER_INIT(link->ctx->logger);
 
+
 	/* deallocate_mst_payload is called before disable link. When mode or
 	 * disable/enable monitor, new stream is created which is not in link
 	 * stream[] yet. For this, payload is not allocated yet, so de-alloc
@@ -4014,7 +4017,7 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
 				&empty_link_settings,
 				avg_time_slots_per_mtp);
 
-	if (mst_mode) {
+	if (mst_mode || update_drm_mst_state) {
 		/* when link is in mst mode, reply on mst manager to remove
 		 * payload
 		 */
@@ -4077,11 +4080,18 @@ static enum dc_status deallocate_mst_payload(struct pipe_ctx *pipe_ctx)
 			stream->ctx,
 			stream);
 
+		if (!update_drm_mst_state)
+			dm_helpers_dp_mst_send_payload_allocation(
+				stream->ctx,
+				stream,
+				false);
+	}
+
+	if (update_drm_mst_state)
 		dm_helpers_dp_mst_send_payload_allocation(
 			stream->ctx,
 			stream,
 			false);
-	}
 
 	return DC_OK;
 }