[PATCH v4 00/11] An effort to bring DT bindings compliance within U-Boot

[Sumit Garg]

On Mon, 22 Jan 2024 at 05:31, Tom Rini <trini at konsulko.com> wrote:
>
> On Sun, Jan 21, 2024 at 10:41:51PM +0000, Caleb Connolly wrote:
> >
> >
> > On 21/01/2024 15:33, Marek Vasut wrote:
> [snip]
> > > Assume that there is some large breaking change in Linux 6.(n+1),
> > > something which would be problematic for specific U-Boot platform (e.g.
> > > i.MX) or would require a lot of work to sort out, will there be a way to
> > > temporarily pin DTs for specific platform to older DT version until that
> > > is resolved (e.g. pin to 6.n) ?
> >
> > (Upstream) devicetree has to be forwards and backwards compatible, were such
> > a breaking change to get merged without prior discussion with DT users (i.e.
> > U-Boot) then I think the correct course of action would be to revert it.
>
> The caveat is "unless it was wrong before", which happens more often
> than is generally thought of I think. I'm not sure off-hand the best way
> to deal with that.

I think that's the reason we just want to pull DT at once in the
beginning of the next window and allow U-Boot developers/maintainers
to detect and fix problems during the full U-Boot release cycle.
However, we are open to discussions for a revert if there is a major
DT ABI break among Linux major (.0) releases affecting many U-Boot
platforms.

-Sumit

>
> --
> Tom