[PATCH v2 17/38] drm/msm/dp: no need to update tu calculation for mst

[Yongxing Mou]

From: Abhinav Kumar <quic_abhinavk at quicinc.com>

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 at quicinc.com>
Signed-off-by: Yongxing Mou <quic_yongmou at quicinc.com>
---
 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 64d9862841a22b8298c6e4eb6e488834e38ddcd0..596a949827a4db7c5ce3e804d31c3db8e048cebe 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -2108,7 +2108,8 @@ int msm_dp_ctrl_on_stream(struct msm_dp_ctrl *msm_dp_ctrl, struct msm_dp_panel *
 		pixel_rate_orig,
 		msm_dp_panel->msm_dp_mode.out_fmt_is_yuv_420);
 
-	msm_dp_ctrl_setup_tr_unit(ctrl);
+	if (!ctrl->mst_active)
+		msm_dp_ctrl_setup_tr_unit(ctrl);
 
 	msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, DP_STATE_CTRL_SEND_VIDEO);
 

-- 
2.34.1