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Date:   Wed, 1 Nov 2023 07:42:11 +0600
From:   Binbin Zhou <zhoubb.aaron@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Binbin Zhou <zhoubinbin@...ngson.cn>,
        Huacai Chen <chenhuacai@...ngson.cn>,
        Thomas Gleixner <tglx@...utronix.de>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Huacai Chen <chenhuacai@...nel.org>,
        loongson-kernel@...ts.loongnix.cn, devicetree@...r.kernel.org,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        Jiaxun Yang <jiaxun.yang@...goat.com>,
        linux-mips@...r.kernel.org, lvjianmin@...ngson.cn,
        WANG Xuerui <git@...0n.name>, loongarch@...ts.linux.dev,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/5] dt-bindings: interrupt-controller:
 loongson,liointc: Fix dtbs_check warning for reg-names

On Tue, Oct 31, 2023 at 11:52 PM Rob Herring <robh@...nel.org> wrote:
>
> On Tue, Oct 31, 2023 at 10:36:37AM +0800, Binbin Zhou wrote:
> > As we know, the Loongson-2K0500 is a single-core CPU, and the
> > core1-related register (isr1) does not exist, and we need a separate
> > declaration.
> >
> > This fixes dtbs_check warning:
> >
> > DTC_CHK arch/loongarch/boot/dts/loongson-2k0500-ref.dtb
> > arch/loongarch/boot/dts/loongson-2k0500-ref.dtb: interrupt-controller@...11400: reg-names: ['main', 'isr0'] is too short
> >         From schema: Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
> > arch/loongarch/boot/dts/loongson-2k0500-ref.dtb: interrupt-controller@...11400: Unevaluated properties are not allowed ('reg-names' was unexpected)
> >         From schema: Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
> > arch/loongarch/boot/dts/loongson-2k0500-ref.dtb: interrupt-controller@...11400: reg: [[0, 534844416, 0, 64], [0, 534843456, 0, 8]] is too short
> >         From schema: Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
> > arch/loongarch/boot/dts/loongson-2k0500-ref.dtb: interrupt-controller@...11440: reg-names: ['main', 'isr0'] is too short
> >         From schema: Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
> >
> > Signed-off-by: Binbin Zhou <zhoubinbin@...ngson.cn>
> > ---
> >  .../loongson,liointc.yaml                     | 22 ++++++++++++++-----
> >  1 file changed, 16 insertions(+), 6 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
> > index 0d9511b8a792..7393d7dfbe82 100644
> > --- a/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
> > +++ b/Documentation/devicetree/bindings/interrupt-controller/loongson,liointc.yaml
> > @@ -11,8 +11,13 @@ maintainers:
> >
> >  description: |
> >    This interrupt controller is found in the Loongson-3 family of chips and
> > -  Loongson-2K1000 chip, as the primary package interrupt controller which
> > +  Loongson-2K series chips, as the primary package interrupt controller which
> >    can route local I/O interrupt to interrupt lines of cores.
> > +  Be aware of the following points.
> > +  1.The Loongson-2K0500 is a single core CPU, the isr1 register could not be defined;
> > +  2.The Loongson-2K0500/2K1000 has 64 device interrupt sources as inputs, so we
> > +    need to define two nodes in dts{i} to describe the "0-31" and "32-61" interrupt
> > +    sources respectively.
> >
> >  allOf:
> >    - $ref: /schemas/interrupt-controller.yaml#
> > @@ -29,10 +34,14 @@ properties:
> >      maxItems: 3
> >
> >    reg-names:
> > -    items:
> > -      - const: main
> > -      - const: isr0
> > -      - const: isr1
> > +    oneOf:
> > +      - items:
> > +          - const: main
> > +          - const: isr0
> > +      - items:
> > +          - const: main
> > +          - const: isr0
> > +          - const: isr1
>
> Just adding 'minItems: 2' accomplishes the same thing without
> duplicating the list.

OK, I will do it.

Thanks.
Binbin
>
> >
> >    interrupt-controller: true
> >
> > @@ -94,7 +103,8 @@ if:
> >  then:
> >    properties:
> >      reg:
> > -      minItems: 3
> > +      minItems: 2
> > +      maxItems: 3
> >
> >    required:
> >      - reg-names
> > --
> > 2.39.3
> >

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