linux-kernel - Re: [PATCH v1 08/14] dt-bindings: mtd: relax the nvmem compatible string

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Message-ID: <e0afa0fc-4718-2aa1-2555-4ebb2274850b@linaro.org>
Date:   Wed, 31 Aug 2022 10:37:51 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Michael Walle <michael@...le.cc>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Shawn Guo <shawnguo@...nel.org>, Li Yang <leoyang.li@....com>,
        Rafał Miłecki <rafal@...ecki.pl>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Frank Rowand <frowand.list@...il.com>
Cc:     linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        netdev@...r.kernel.org, Ahmad Fatoum <a.fatoum@...gutronix.de>
Subject: Re: [PATCH v1 08/14] dt-bindings: mtd: relax the nvmem compatible
 string

On 26/08/2022 00:44, Michael Walle wrote:
> The "user-otp" and "factory-otp" compatible string just depicts a
> generic NVMEM device. But an actual device tree node might as well
> contain a more specific compatible string. Make it possible to add
> more specific binding elsewere and just match part of the compatibles

typo: elsewhere

> here.
> 
> Signed-off-by: Michael Walle <michael@...le.cc>
> ---
>  Documentation/devicetree/bindings/mtd/mtd.yaml | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mtd/mtd.yaml b/Documentation/devicetree/bindings/mtd/mtd.yaml
> index 376b679cfc70..0291e439b6a6 100644
> --- a/Documentation/devicetree/bindings/mtd/mtd.yaml
> +++ b/Documentation/devicetree/bindings/mtd/mtd.yaml
> @@ -33,9 +33,10 @@ patternProperties:
>  
>      properties:
>        compatible:
> -        enum:
> -          - user-otp
> -          - factory-otp
> +        contains:
> +          enum:
> +            - user-otp
> +            - factory-otp

This does not work in the "elsewhere" place. You need to use similar
approach as we do for syscon or primecell.

>  
>      required:
>        - compatible


Best regards,
Krzysztof