[PATCH v5 07/25] 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 e9aa0e254234..5b5149b160df 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -2705,7 +2705,8 @@ 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