Re: [PATCH 14/21] drm/msm/dpu: Support quad-pipe in SSPP checking

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Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> 于2024年8月29日周四 19:38写道:
>
> > @@ -1033,13 +1030,10 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
> >                         return -E2BIG;
> >                 }
> >
> > -               /*
> > -                * Use multirect for wide plane. We do not support dynamic
> > -                * assignment of SSPPs, so we know the configuration.
> > -                */
> >                 pipe->multirect_index = DPU_SSPP_RECT_0;
> >                 pipe->multirect_mode = DPU_SSPP_MULTIRECT_PARALLEL;
> >
> > +               r_pipe->sspp = pipe->sspp;
>
> NAK
>
I do not understand what's your point here. If multi-rectangle mode is
used, the 2 sw_pipe share a
SSPP structure. Otherwise the right half of mixer pair does not work
and no display on that side,
because there is no SSPP to handle in r_pipe setup.

>
> --
> With best wishes
> Dmitry





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