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@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 3839f1e8e1aeb2a14a7f59c546693141a0df6323..1c313cf33f398dffc2ad349d7d1bc995fb4b45b3 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -2060,7 +2060,8 @@ 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

On Thu, Dec 05, 2024 at 08:31:51PM -0800, Abhinav Kumar wrote:
> 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@quicinc.com>
> ---
>  drivers/gpu/drm/msm/dp/dp_ctrl.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

-- 
With best wishes
Dmitry