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

Dmitry Baryshkov dmitry.baryshkov at oss.qualcomm.com
Sun Jun 8 22:35:35 UTC 2025


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 at gmail.com>
> ---
>  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


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