Re: [PATCH v6 0/6] drm/rcar-du: Add support for DSI pipelines with DSC

[Geert Uytterhoeven]

Hi Tomi,

On Fri, 11 Sept 2026 at 09:07, Tomi Valkeinen
<tomi.valkeinen+renesas@xxxxxxxxxxxxxxxx> wrote:
> 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.

Thanks, will queue in renesas-devel for v7.4.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds