[PATCH v6 10/29] drm/msm/dp: no need to update tu calculation for mst

[Yongxing Mou]

From: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>

DP stream is transmitted in transfer units only for SST
case, there is no need to calculate and program TU parameters
for MST case. Skip the TU programming for MST cases.

Signed-off-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>
Signed-off-by: Yongxing Mou <yongxing.mou@xxxxxxxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/msm/dp/dp_ctrl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index cd6ae0d5372c..77506e840883 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -2703,7 +2703,8 @@ int msm_dp_ctrl_on_stream(struct msm_dp_ctrl *msm_dp_ctrl, struct msm_dp_panel *
 
 	msm_dp_panel_clear_dsc_dto(panel);
 
-	msm_dp_ctrl_setup_tr_unit(ctrl, panel);
+	if (!ctrl->mst_active)
+		msm_dp_ctrl_setup_tr_unit(ctrl, panel);
 
 	msm_dp_write_link(ctrl, REG_DP_STATE_CTRL, DP_STATE_CTRL_SEND_VIDEO);
 

-- 
2.43.0