Re: [PATCH v7 3/5] drm/bridge: analogix_dp: Restore mandatory samsung DP DT properties

[Damon Ding]

Hi Luca,

On 8/19/2026 8:54 PM, Luca Ceresoli wrote:
> > Revert the change that made samsung,link-rate and samsung,lane-count
> > optional for Exynos DP. Add error checking to fail probe early if the
> > required DT properties are missing.
> >
> > If these properties are zero, &link_train.link_rate and
> > &link_train.lane_count used in the subsequent link training flow will
> > also be zero, resulting in link training failure. Although all existing
> > Exynos DP DT nodes already contain these two properties, this potential
> > logic issue still needs to be fixed.
> >
> > Fixes: 0d0abd894ead ("drm: bridge: analogix/dp: add max link rate and lane count limit for RK3288")
>
> If it's a fix, please add 'Cc: stable' too.
>
> Also please add to the commit message the detailed analysis you wrote in
> the v6 discussion, so that it will easy to find in the git history, in case
> it's needed in the future.
>
> With that added you can add: Reviewed-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>

Yes, will do in v8.

Best regards,
Damon