Re: [PATCH v4 1/4] drm/msm/dp: Fix support of LTTPR initialization

From: Abhinav Kumar
Date: Wed Apr 30 2025 - 20:25:08 EST




On 4/29/2025 5:09 PM, Aleksandrs Vinarskis wrote:
Initialize LTTPR before msm_dp_panel_read_sink_caps, as DPTX shall
(re)read DPRX caps after LTTPR detection, as required by DP 2.1,
Section 3.6.7.6.1.


Thanks for the patch.

Small correction: this is section 3.6.7.6.1 of DP 2.1a not DP 2.1


Fixes: 72d0af4accd9 ("drm/msm/dp: Add support for LTTPR handling")

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
Signed-off-by: Aleksandrs Vinarskis <alex.vinarskis@xxxxxxxxx>
Tested-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Tested-by: Rob Clark <robdclark@xxxxxxxxx>
---
drivers/gpu/drm/msm/dp/dp_display.c | 13 +++++++++----
1 file changed, 9 insertions(+), 4 deletions(-)


No need to resend for this, I can even fix it up while applying,

With that addressed,

Reviewed-by: Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx>