Re: [PATCH 1/5] dt-bindings: arm: altera: fix Agilex72 compatible vendor prefix

[Chiam, Evon]

On 15/8/2026 1:35 am, Rob Herring wrote:
> On Fri, Aug 14, 2026 at 04:18:59PM +0800, Chiam, Evon wrote:
> > On 12/8/2026 10:49 am, Rob Herring wrote:
> > > On Thu, Aug 06, 2026 at 05:25:01PM +0800, evon.chiam@xxxxxxxxxx wrote:
> > > > From: "Chiam, Evon" <evon.chiam@xxxxxxxxxx>
> > > >
> > > > Altera has separated from Intel. Update the Agilex72 SoC and board
> > > > compatible strings to use the Altera vendor prefix instead of intel.
> > >
> > > Sorry, without better reasoning, you are stuck with them as sashiko
> > > pointed out.
> > Sashiko’s comment on the DTS still using the intel compatible strings was
> > based on reviewing patch 1/5 alone. Patch 4/5 moves the Agilex72 DT from
> > arch/arm64/boot/dts/intel/ to arch/arm64/boot/dts/altera/ and updates the
> > compatible strings to altr. With both patches applied, the bindings and DTS
> > remain consistent.
> >
> > Would you prefer that I combine the patches 1/5 and 4/5 into a single patch
> > so the binding and DTS updates land together?
>
> Moving the dts directory is fine (though that is really up to SoC
> maintainers). Changing compatible strings is not. It is not about the
> patch split. It is an ABI. There are exceptions though. Generally that
> is if there is no one with the h/w or the current .dts is so incomplete
> that anyone using the h/w will need to update their DTB anyways.
>
> Rob

Thanks for clarifying.

To provide some context, Agilex72 DTS is still at an early
stage of development, and most people do not have access to the
hardware yet. Anyone using the current DTS would need to update their
DTB, so changing the compatible strings at this stage should
not cause ABI issues.

Regards,
Evon