From a538d6137dffc5dc8082b9ebe9819c4106fa3f83 Mon Sep 17 00:00:00 2001 From: "Pandiyan, Dhinakaran" Date: Thu, 16 Mar 2017 00:10:24 -0700 Subject: drm/dp: Kill total_pbn and total_slots in struct drm_dp_mst_topology_mgr The total vcpi time slots is always 63 and does not depend on the link BW, remove total_slots from MST topology manager struct. The next change is to remove total_pbn which is hardcoded to 2560. The total PBN that the topology manager allocates from depends on the link rate and is not a constant. So, fix this by removing the total_pbn member itself. Cc: Daniel Vetter Cc: Archit Taneja Cc: Maarten Lankhorst Cc: Chris Wilson Cc: Harry Wentland Signed-off-by: Dhinakaran Pandiyan Reviewed-by: Maarten Lankhorst Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1489648231-30700-2-git-send-email-dhinakaran.pandiyan@intel.com --- drivers/gpu/drm/drm_dp_mst_topology.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/gpu') diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index f2cc375907d0..66a611afa82a 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -2042,9 +2042,8 @@ int drm_dp_mst_topology_mgr_set_mst(struct drm_dp_mst_topology_mgr *mgr, bool ms goto out_unlock; } - mgr->total_pbn = 2560; - mgr->total_slots = DIV_ROUND_UP(mgr->total_pbn, mgr->pbn_div); - mgr->avail_slots = mgr->total_slots; + /* max. time slots - one slot for MTP header */ + mgr->avail_slots = 63; /* add initial branch device at LCT 1 */ mstb = drm_dp_add_mst_branch_device(1, NULL); -- cgit v1.2.3-59-g8ed1b