Re: [PATCH net-next v2 1/3] dt-bindings: net: dwmac: Increase 'maxItems' for 'interrupts' and 'interrupt-names'

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Hi Rob,

Thank you for the review.

On Mon, Mar 10, 2025 at 9:30 PM Rob Herring <robh@xxxxxxxxxx> wrote:
>
> On Sat, Mar 08, 2025 at 08:09:19PM +0000, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> >
> > Increase the `maxItems` value for the `interrupts` and `interrupt-names`
> > properties to accommodate the Renesas RZ/V2H(P) SoC, which features the
> > `snps,dwmac-5.20` IP with 11 interrupts.
> >
> > Also add `additionalItems: true` to allow specifying extra interrupts
> > beyond the predefined ones. Update the `interrupt-names` property to
> > allow specifying extra `interrupt-names`.
> >
> > Also refactor the optional `interrupt-names` property by consolidating
> > repeated enums into a single enum list.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> > ---
> > Note, for this change I will be sending a sperate patch for vendor
> > bindings to add constraints.
> >
> > v1->v2
> > - No change
> > ---
> >  Documentation/devicetree/bindings/net/snps,dwmac.yaml | 6 ++++--
> >  1 file changed, 4 insertions(+), 2 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> > index 3f0aa46d798e..fad0d611a75c 100644
> > --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> > +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> > @@ -114,6 +114,8 @@ properties:
> >
> >    interrupts:
> >      minItems: 1
> > +    maxItems: 11
> > +    additionalItems: true
> >      items:
> >        - description: Combined signal for various interrupt events
> >        - description: The interrupt to manage the remote wake-up packet detection
> > @@ -122,11 +124,11 @@ properties:
> >
> >    interrupt-names:
> >      minItems: 1
> > +    maxItems: 11
> > +    additionalItems: true
> >      items:
> >        - const: macirq
> >        - enum: [eth_wake_irq, eth_lpi, sfty]
> > -      - enum: [eth_wake_irq, eth_lpi, sfty]
> > -      - enum: [eth_wake_irq, eth_lpi, sfty]
>
> I think this should be structured similar to the DWC PCIe binding where
> we define all possible names, but not the order:
>
> minItems: 1
> maxItems: 11
> items:
>   oneOf:
>     - const: macirq
>       description: ...
>     - const: eth_wake_irq
>       description: ...
>     - pattern: '^rx-queue-[0-3]$'
>       description: ...
>     - pattern: '^tx-queue-[0-3]$'
>       description: ...
>
> And so on. Move the descriptions from 'interrupts' and drop 'items' and
> 'additionalItems' from it.
>
Thanks for the pointer, I'll do as suggested above.

@Russel, are you OK from me to add rx-queue/tx-queue in this binding
file or would you suggest different names for it. Please share your
thoughts.

Cheers,
Prabhakar





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