linux-kernel - Re: [PATCH v3] dt-bindings: interrupt-controller: Convert nxp,lpc3220-mic.txt to yaml format

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Message-ID: <7ea9fb0f-f7bc-49bf-965f-631514abf9fe@gmail.com>
Date: Mon, 3 Mar 2025 22:27:17 -0300
From: Leonardo Felipe Takao Hirata <leo.fthirata@...il.com>
To: Vladimir Zapolskiy <vz@...ia.com>, tglx@...utronix.de, robh@...nel.org,
 krzk+dt@...nel.org, conor+dt@...nel.org
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 skhan@...uxfoundation.org, linux-kernel-mentees@...ts.linuxfoundation.org
Subject: Re: [PATCH v3] dt-bindings: interrupt-controller: Convert
 nxp,lpc3220-mic.txt to yaml format

Hi Vladimir.

On 03/03/2025 1:27 AM, Vladimir Zapolskiy wrote:
> Hello Leonardo.
> 
> On 2/28/25 05:39, Leonardo Felipe Takao Hirata wrote:
>> Convert NXP LPC3220-MIC to DT schema.
>>
>> Signed-off-by: Leonardo Felipe Takao Hirata <leo.fthirata@...il.com>
>> ---
>> Changes in v3:
>>   - Add interrupts property description
>>   - Fix interrupts items descriptions
>>   - Remove else condition
>> ---
> 
> <snip>
> 
>> diff --git a/Documentation/devicetree/bindings/interrupt-controller/ 
>> nxp,lpc3220-mic.yaml b/Documentation/devicetree/bindings/interrupt-controller/ 
>> nxp,lpc3220-mic.yaml
>> new file mode 100644
>> index 000000000000..59e8814a15b7
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/interrupt-controller/nxp,lpc3220-mic.yaml
>> @@ -0,0 +1,69 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/interrupt-controller/nxp,lpc3220-mic.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: NXP LPC32xx MIC, SIC1 and SIC2 Interrupt Controllers
>> +
>> +maintainers:
>> +  - Vladimir Zapolskiy <vz@...ia.com>
>> +
>> +properties:
>> +  compatible:
>> +    enum:
>> +      - nxp,lpc3220-mic
>> +      - nxp,lpc3220-sic
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupt-controller: true
>> +
>> +  '#interrupt-cells':
>> +    const: 2
>> +
>> +  interrupts:
> 
> Please put here
> 
>    minItems: 2
>    maxItems: 2
> 

I didn't add them in this patch because example-schema.yaml states that minItems 
and maxItems are already implied. The following code is taken from the 
example-schema.yaml.

items:
   - description: core registers
   - description: aux registers
   # minItems/maxItems equal to 2 is implied

Besides, adding minItems and maxItems triggers the respective warnings:

- "minItems" is only needed if less than the "items" list length
- "maxItems" is not needed with an "items" list

>> +    items:
>> +      - description: Regular interrupt request
>> +      - description: Fast interrupt request
>> +    description: IRQ and FIQ outputs of SIC1/SIC2 to the MIC.
> 
> Having both two descriptions under 'items:' and another description is
> excessive, please leave only one of two.
> 
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - interrupt-controller
>> +  - '#interrupt-cells'
>> +
>> +allOf:
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            const: nxp,lpc3220-sic
>> +    then:
>> +      required:
>> +        - interrupts
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/interrupt-controller/irq.h>
>> +
>> +    mic: interrupt-controller@...08000 {
>> +        compatible = "nxp,lpc3220-mic";
>> +        reg = <0x40008000 0x4000>;
>> +        interrupt-controller;
>> +        #interrupt-cells = <2>;
>> +    };
>> +
>> +    sic1: interrupt-controller@...0c000 {
> 
> Here sic1 label is not used, please remove.
> 
>> +        compatible = "nxp,lpc3220-sic";
>> +        reg = <0x4000c000 0x4000>;
>> +        interrupt-controller;
>> +        #interrupt-cells = <2>;
>> +        interrupt-parent = <&mic>;
>> +        interrupts = <0 IRQ_TYPE_LEVEL_LOW>,
>> +                    <30 IRQ_TYPE_LEVEL_LOW>;
>> +    };
> 
> After the fixes please feel free to add the tag:
> 
> Reviewed-by: Vladimir Zapolskiy <vz@...ia.com>
> 
> -- 
> Best wishes,
> Vladimir

Rob,

Do you want these changes on top of what was applied or a complete patch?

Best regards,

Leonardo Hirata