[PATCH 2/4] dt-bindings: arm: Document Microchip LAN969x

Conor Dooley conor at kernel.org
Mon Dec 8 09:10:33 PST 2025


On Mon, Dec 08, 2025 at 11:30:28AM +0100, Robert Marko wrote:
> On Wed, Dec 3, 2025 at 8:19 PM Conor Dooley <conor at kernel.org> wrote:
> >
> > On Wed, Dec 03, 2025 at 01:21:30PM +0100, Robert Marko wrote:
> > > Microchip LAN969x is a series of multi-port, multi-gigabit switches based
> > > on ARMv8 Cortex-A53 CPU.
> > >
> > > Signed-off-by: Robert Marko <robert.marko at sartura.hr>
> > > ---
> > >  .../bindings/arm/microchip,lan969x.yaml       | 32 +++++++++++++++++++
> >
> > This should not be in a unique file, put it in with the other microchip
> > arm devices please. Also, the wildcard in the compatible is not
> > permitted, only way it'd make sense is if these are different binnings
> > of the same silicon. If that's the case, you need to explain why,
> > because compatibles are meant to be soc-specific.
> 
> Hi Conor,
> The issue is that there is no unique place for Microchip SoC-s,
> LAN966x series is in the AT91 bindings
> while SparX-5 has its own bindings file.
> 
> What would you suggest in this case?

Ideally, arm/atmel-at91.yaml and arm/microchip,sparx5.yaml would just
become arm/microchip.yaml. The axi at 600000000 thing in the sparx5 file
looks pointless and can be deleted IMO.

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