Re: [PATCH] dt-bindings: timer: sifive,clint: Fix number of interrupts

[Geert Uytterhoeven]

On Thu, Nov 25, 2021 at 4:23 PM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote:
> To improve human readability and enable automatic validation, the tuples
> in "interrupts-extended" properties should be grouped using angle
> brackets.  As the DT bindings lack an upper bound on the number of
> interrupts, thus assuming one, proper grouping is currently flagged as
> an error.
>
> Fix this by adding the missing "maxItems", limiting it to 10 interrupts
> (two interrupts for a system management core, and two interrupts per
> core for other cores), which should be sufficient for now.
>
> Group the tuples in the example.
>
> Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> ---
>  .../devicetree/bindings/timer/sifive,clint.yaml          | 9 +++++----
>  1 file changed, 5 insertions(+), 4 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/timer/sifive,clint.yaml b/Documentation/devicetree/bindings/timer/sifive,clint.yaml
> index a35952f487426988..55bec2d059807c48 100644
> --- a/Documentation/devicetree/bindings/timer/sifive,clint.yaml
> +++ b/Documentation/devicetree/bindings/timer/sifive,clint.yaml
> @@ -43,6 +43,7 @@ properties:
>
>    interrupts-extended:
>      minItems: 1
> +    maxItems: 10

Cfr. Jessica's comment on my PLIC patch:

The maximum supported by the CLINT memory map is 8192.
Device-specific limits would be 4 for k210 and jh7100, and 10 for
fu540.

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds