From: Eryk Brol <[email protected]> [why] The drm dump_topology function was previously called on all DP connectors. This resulted in empty topology dumps for those connectors which weren't root MST nodes.
[how] Make sure we only dump topology from the root MST node. Signed-off-by: Eryk Brol <[email protected]> Reviewed-by: Aurabindo Jayamohanan Pillai <[email protected]> Acked-by: Anson Jacob <[email protected]> --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c index f6f10a8c3e43..5a9809e33af8 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c @@ -2901,6 +2901,10 @@ static int mst_topo_show(struct seq_file *m, void *unused) aconnector = to_amdgpu_dm_connector(connector); + /* Ensure we're only dumping the topology of a root mst node */ + if (!aconnector->mst_mgr.mst_state) + continue; + seq_printf(m, "\nMST topology for connector %d\n", aconnector->connector_id); drm_dp_mst_dump_topology(m, &aconnector->mst_mgr); } -- 2.25.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
