[PATCH v2 2/2] drm/msm/dpu: try multirect based on mdp clock limits

[Dmitry Baryshkov]

On Tue, 12 Sept 2023 at 01:16, Abhinav Kumar <quic_abhinavk at quicinc.com> wrote:
>
> It's certainly possible that for large resolutions a single DPU SSPP
> cannot process the image without exceeding the MDP clock limits but
> it can still process it in multirect mode because the source rectangles
> will get divided and can fall within the MDP clock limits.
>
> If the SSPP cannot process the image even in multirect mode, then it
> will be rejected in dpu_plane_atomic_check_pipe().
>
> Hence try using multirect for resolutions which cannot be processed
> by a single SSPP without exceeding the MDP clock limits.
>
> changes in v2:
>         - use crtc_state's adjusted_mode instead of mode
>         - fix the UBWC condition to check maxlinewidth
>
> Signed-off-by: Abhinav Kumar <quic_abhinavk at quicinc.com>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>


-- 
With best wishes
Dmitry