linux-kernel - Re: [PATCH v2 1/2] dt-bindings: mtd: partitions: Add binding for Sercomm parser

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Message-ID: <2e51842a-d2c9-8953-13aa-02ad3abb3f14@linaro.org>
Date:   Sat, 30 Apr 2022 16:35:57 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Mikhail Zhilkin <csharper2005@...il.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>
Cc:     NOGUCHI Hiroshi <drvlabo@...il.com>, Karim <Karimdplay@...il.com>,
        M <x1@...root.org>, linux-mtd@...ts.infradead.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 1/2] dt-bindings: mtd: partitions: Add binding for
 Sercomm parser

On 30/04/2022 10:04, Mikhail Zhilkin wrote:
> 
> diff --git
> a/Documentation/devicetree/bindings/mtd/partitions/fixed-partitions.yaml
> b/Documentation/devicetree/bindings/mtd/partitions/fixed-partitions.yaml
> index ea4cace6a955..fa457d55559b 100644
> --- a/Documentation/devicetree/bindings/mtd/partitions/fixed-partitions.yaml
> +++ b/Documentation/devicetree/bindings/mtd/partitions/fixed-partitions.yaml
> @@ -17,9 +17,29 @@ description: |
>  maintainers:
>    - Rafał Miłecki <rafal@...ecki.pl>
>  
> +select:
> +  properties:
> +    compatible:
> +      contains:
> +        enum:
> +          - fixed-partitions
> +
> +  required:
> +    - compatible

With your approach you do not need this entire select. I pointed out to
you if you wanted to take the syscon approach.

> +
>  properties:
>    compatible:
> -    const: fixed-partitions
> +    anyOf:

oneOf

> +      - items:
> +          - enum:
> +              - sercomm,sc-partitions
> +
> +          - const: fixed-partitions
> +
> +      - contains:
> +          const: fixed-partitions
> +        minItems: 1
> +        maxItems: 2

This is also not needed if you do no take the syscon approach.

>  
>    "#address-cells": true
>  
> @@ -27,7 +47,18 @@ properties:
>  
>  patternProperties:
>    "@[0-9a-f]+$":
> -    $ref: "partition.yaml#"
> +    allOf:
> +      - $ref: "partition.yaml#"
> +      - if:
> +          properties:
> +            compatible:
> +              contains:
> +                const: sercomm,sc-partitions
> +        then:
> +          properties:
> +            sercomm,scpart-id:
> +              description: Partition id in Sercomm partition map
> +              $ref: /schemas/types.yaml#/definitions/uint32

I think we still did not clarify why do you need this ID which in all
your examples increments by one. The description basically is a copy of
property name, so it does not explain anything.

>  
>  required:
>    - "#address-cells"
> @@ -119,3 +150,29 @@ examples:
>              };
>          };
>      };

Blank line.

> +  - |
> +    partitions {
> +        compatible = "sercomm,sc-partitions", "fixed-partitions";
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +
> +        partition@0 {
> +            label = "u-boot";
> +            reg = <0x0 0x100000>;
> +            sercomm,scpart-id=<0>;

Missing spaces around =.

Best regards,
Krzysztof