Re: [PATCH] arm64: dts: renesas: falcon-csi-dsi: Set bus-type for MAX96712

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Hi Niklas,

On Fri, Mar 31, 2023 at 5:30 PM Niklas Söderlund
<niklas.soderlund+renesas@xxxxxxxxxxxx> wrote:
> On 2023-03-31 17:08:50 +0200, Geert Uytterhoeven wrote:
> > On Fri, Mar 31, 2023 at 4:15 PM Niklas Söderlund
> > <niklas.soderlund+renesas@xxxxxxxxxxxx> wrote:
> > > Specify the bus-type property for all three connected MAX96712.
> >
> > Probably this can use a little bit more explanation?
> > E.g. what does not work?
>
> Everything works both with and without this patch. This is done in
> preparation to making the property mandatory. The default behavior when
> parsing a node without this property is to default to D-PHY. So this is
> just playing it safe and future prof tings as the default parsing comes
> from the V4L2 core and not the driver itself.

OK. I realized most of that after reading your other patch...

> > > Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
> >
> > LGTM, so
> > Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
> >
> > Does this need a Fixes: tag?
> > Fixes: 283252132cb578cf ("arm64: dts: renesas: falcon-csi-dsi: Add and
> > connect MAX96712")
> >
> > Note that a backport to v6.1 and earlier will depend on a backport of
> > commit f7eeb00845934851 ("media: dt-bindings: media: Add macros for
> > video interface bus types") in v6.2, too.
>
> In a perfect word it would. But since the change is backward compatible
> I'm not sure it's worth the effort given the dependency on the macro
> definitions? If you think this is a good idea maybe a separate patch
> posted for stable that uses the numerical values directly?

OK, so no Fixes needed.
And if someone wants to backport it (renesas-bsp?), xe can backport the
latter, too (in fact renesas-bsp already did).

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



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