Re: [PATCH v2 2/2] drm/msm/disp: Correct porch timing for SDM845

From: Dmitry Baryshkov
Date: Sun Jun 08 2025 - 18:35:57 EST


On Wed, Feb 12, 2025 at 03:03:47PM -0800, James A. MacInnes wrote:
> Type-C DisplayPort inoperable due to incorrect porch settings.
> - Re-used wide_bus_en as flag to prevent porch shifting
>
> Fixes: c943b4948b58 ("drm/msm/dp: add displayPort driver support")
> Signed-off-by: James A. MacInnes <james.a.macinnes@xxxxxxxxx>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 14 +++++++++-----
> 1 file changed, 9 insertions(+), 5 deletions(-)
>

I was able to run DP tests on SDM845. These changes are required on that
platform, disabling programmable fetch is not enough.

--
With best wishes
Dmitry