diff mbox series

[20/45] drm/msm/dp: no need to update tu calculation for mst

Message ID 20241205-dp_mst-v1-20-f8618d42a99a@quicinc.com (mailing list archive)
State Not Applicable
Headers show
Series drm/msm/dp: Add MST support for MSM chipsets | expand

Commit Message

Abhinav Kumar Dec. 6, 2024, 4:31 a.m. UTC 
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(-)

Comments

Dmitry Baryshkov Dec. 8, 2024, 5:45 a.m. UTC | #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>
diff mbox series

Patch

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);