Re: [PATCH] drm/msm/dpu: round up the compressed INTF width

From: Dmitry Baryshkov

Date: Tue Oct 06 2026 - 02:55:32 EST


On Sun, 04 Oct 2026 19:27:58 +0900, Joonhoe Kim wrote:
> For DSI with DSC, drm_mode_to_intf_timing_params() scales the INTF
> active width by bpp / (3 * bits_per_component) and rounds down. The DSI
> host computes the same width with DIV_ROUND_UP, both for the pixel clock
> (dsi_adjust_pclk_for_compression()) and for the active width it programs
> (dsi_timing_setup(), from bytes per line). When the division is not
> exact the INTF line is one pclk shorter than the DSI line, and the DSI
> FIFO overflows.
>
> [...]

Applied to msm-next, thanks!

[1/1] drm/msm/dpu: round up the compressed INTF width
https://gitlab.freedesktop.org/lumag/msm/-/commit/6b93e8b453fa

Best regards,
--
With best wishes
Dmitry