Re: [PATCH v6 0/6] drm/rcar-du: Add support for DSI pipelines with DSC
From: Tomi Valkeinen
Date: Fri Sep 11 2026 - 03:17:47 EST
Hi,
On 07/09/2026 12:29, Tomi Valkeinen wrote:
Some DSI pipelines have DSC (Display Stream Compression) IP block
between the DU and the DSI. Even if DSC is not needed, the IP must be
enabled for the DSI output to work.
This series adds a basic DSC driver, so that the DSC IP gets enabled in
bypass mode. This enables DisplayPort output on Sparrow Hawk board, as
the DP output comes from DSI and sn65dsi86 bridge, and also White Hawk
board's second mini-DP output.
Original series from Marek.
Note: I see that not every run of kms++'s kmstest gives me a picture on
my monitor. Sometimes the monitor seems to be trying to repeatedly sync,
but fails, and the screen stays black. However, I see this same issue on
WhiteHawk, which uses DSI0 pipeline, without DSC, so I think that is a
separate issue.
Pushed the first three patches to drm-misc-next. I'll leave the dts ones to Geert.
Tomi