linux-kernel - Re: [PATCH v2 1/2] dt-bindings: interrupt-controller: document BCM6345 external interrupt controller

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Date:   Sun, 7 Mar 2021 11:12:55 +0100
From:   Álvaro Fernández Rojas <noltari@...il.com>
To:     Rob Herring <robh@...nel.org>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jonas Gorski <jonas.gorski@...il.com>,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        bcm-kernel-feedback-list@...adcom.com, linux-mips@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt-bindings: interrupt-controller: document
 BCM6345 external interrupt controller

Hi Rob,

El 06/03/2021 a las 21:14, Rob Herring escribió:
> On Wed, Feb 24, 2021 at 08:56:39AM +0100, Álvaro Fernández Rojas wrote:
>> Document the binding for the BCM6345 external interrupt controller.
>>
>> Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
>> Signed-off-by: Jonas Gorski <jonas.gorski@...il.com>
>> Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
>> ---
>>   v3: pass dt_binding_check.
>>   v2: fix title typo.
>>
>>   .../brcm,bcm6345-ext-intc.yaml                | 78 +++++++++++++++++++
>>   1 file changed, 78 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/interrupt-controller/brcm,bcm6345-ext-intc.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm6345-ext-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm6345-ext-intc.yaml
>> new file mode 100644
>> index 000000000000..a691510e78b7
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/interrupt-controller/brcm,bcm6345-ext-intc.yaml
>> @@ -0,0 +1,78 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/interrupt-controller/brcm,bcm6345-ext-intc.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Broadcom BCM6345 external interrupt controller
>> +
>> +maintainers:
>> +  - Álvaro Fernández Rojas <noltari@...il.com>
>> +  - Jonas Gorski <jonas.gorski@...il.com>
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - brcm,bcm6318-ext-intc
>> +      - brcm,bcm6345-ext-intc
>> +
>> +  "#interrupt-cells":
>> +    const: 2
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  "#address-cells":
>> +    const: 0
>> +
>> +  interrupt-controller: true
>> +
>> +  interrupts:
>> +    description: Specifies the interrupt line(s) in the interrupt-parent
>> +      controller node. Valid values depend on the type of parent interrupt
>> +      controller.
>> +    maxItems: 4
>> +
>> +  brcm,field-width:
>> +    description: Interrupt controller field width (the default is 4).
> 
> default: 4
> 
>> +    maxItems: 1
> 
> All uint32's are 1 item.

Ok, so I should remove this :)

> 
> What's the set or range of values?

Only BCM6348 needs to set this value to 5, other BCM63xx use the default 
value of 4 (BCM3368, BCM6318, BCM6328, BCM6338, BCM6345, BCM6358, 
BCM6362, BCM6368, BCM63268).

> 
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +
>> +required:
>> +  - "#address-cells"
>> +  - compatible
>> +  - reg
>> +  - "#interrupt-cells"
>> +  - interrupt-controller
>> +  - interrupts
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    interrupt-controller@...00018 {
>> +      #address-cells = <0>;
>> +      compatible = "brcm,bcm6345-ext-intc";
>> +      reg = <0x10000018 0x4>;
>> +
>> +      interrupt-parent = <&periph_intc>;
>> +      #interrupt-cells = <2>;
>> +
>> +      interrupt-controller;
>> +      interrupts = <24>, <25>, <26>, <27>;
>> +    };
>> +
>> +  - |
>> +    interrupt-controller@...e0014 {
>> +      #address-cells = <0>;
>> +      compatible = "brcm,bcm6345-ext-intc";
>> +      reg = <0xfffe0014 0x4>;
>> +
>> +      interrupt-controller;
>> +      #interrupt-cells = <2>;
>> +
>> +      interrupt-parent = <&cpu_intc>;
>> +      interrupts = <3>, <4>, <5>, <6>;
>> +
>> +      brcm,field-width = <5>;
>> +    };
>> -- 
>> 2.20.1
>>

Best regards,
Álvaro.