Re: [PATCH 3/5] drm/msm/dpu: Check mode against PINGPONG or DSC max width

[Xilin Wu]

On 5/15/2025 7:52 AM, Jessica Zhang wrote:
> Validate requested mode and topology based on the PINGPONG or DSC encoder
> max width. In addition, drop MAX_HDISPLAY_SPLIT and base LM reservation
> off of PINGPONG or DSC encoder max width
>
> As noted in the patch, while DPU 8.x+ supports a max linewidth of 8960
> for PINGPONG_0, there is some additional logic that needs to be added to
> the resource manager to specifically try and reserve PINGPONG_0 for
> modes that are greater than 5k.
>
> Since this is out of the scope of this series, add a helper that will
> get the overall minimum PINGPONG max linewidth for a given chipset.
>
> Signed-off-by: Jessica Zhang <jessica.zhang@xxxxxxxxxxxxxxxx>
> ---
>   drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 46 +++++++++++++++++++++++++++-----
>   1 file changed, 39 insertions(+), 7 deletions(-)
Thanks for the patches! With patch 2&3 applied on top of v6.18, I'm able 
to get DSI panel and DP monitor working simultaneously on qcs6490.

Tested-by: Xilin Wu <sophon@xxxxxxxxx> # qcs6490-radxa-dragon-q6a

--
Best regards,
Xilin Wu <sophon@xxxxxxxxx>