[PATCH 2/3] dt-bindings: interrupt-controller: add UltraRISC DP1000 PLIC

[Lucas Zampieri]

On Thu, Oct 9, 2025 at 9:39 AM Krzysztof Kozlowski <krzk at kernel.org> wrote:
>
> On 09/10/2025 17:20, Lucas Zampieri wrote:
> > From: Charles Mirabile <cmirabil at redhat.com>
> >
> > Add a new compatible string for UltraRISC DP1000 PLIC.
> >
> > Signed-off-by: Charles Mirabile <cmirabil at redhat.com>
> > ---
> >  .../bindings/interrupt-controller/sifive,plic-1.0.0.yaml        | 2 ++
> >  1 file changed, 2 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
> > index 5b827bc24301..a419de50f5a8 100644
> > --- a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
> > +++ b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
> > @@ -74,6 +74,8 @@ properties:
> >                - sophgo,sg2044-plic
> >                - thead,th1520-plic
> >            - const: thead,c900-plic
> > +      - items:
>
>
> Missing SoC specific front compatible, me thinks.

Right, if I'm understanding this correctly, I would need to add the
sifive,plic-1.0.0 fallback compatible to indicate register layout
compatibility. However, the DP1000 PLIC has a claim register hardware
bug that breaks interrupt handling without the driver quirk. Should we
still include the fallback even though the generic driver doesn't
work?

>
>
> Best regards,
> Krzysztof
>

Best,
Lucas Zampieri