[PATCH v2 1/2] dt-bindings: interrupt-controller: sifive,plic: Fix number of interrupts

Rob Herring robh at kernel.org
Thu Dec 16 13:29:29 PST 2021


On Thu, 16 Dec 2021 14:41:21 +0100, Geert Uytterhoeven wrote:
> The number of interrupts lacks an upper bound, thus assuming one,
> causing properly grouped "interrupts-extended" properties to be flagged
> as an error by "make dtbs_check".
> 
> Fix this by adding the missing "maxItems".  As the architectural maximum
> is 15872 interrupts, using that as the limit would be unpractical.
> Hence limit it to 9 interrupts (one interrupt for a system management
> core, and two interrupts per core for other cores).  This should be
> sufficient for now, and the limit can always be increased when the need
> arises.
> 
> Signed-off-by: Geert Uytterhoeven <geert at linux-m68k.org>
> ---
> v2:
>   - Split in two patches,
>   - Improve patch description and document limit rationale.
> ---
>  .../bindings/interrupt-controller/sifive,plic-1.0.0.yaml         | 1 +
>  1 file changed, 1 insertion(+)
> 

Acked-by: Rob Herring <robh at kernel.org>



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