linux-kernel - Re: [PATCH 1/2] dt-bindings: mtd: nand: Macronix: document new binding

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Message-ID: <20230324104020.54754079@xps-13>
Date:   Fri, 24 Mar 2023 10:40:20 +0100
From:   Miquel Raynal <miquel.raynal@...tlin.com>
To:     Álvaro Fernández Rojas <noltari@...il.com>
Cc:     richard@....at, vigneshr@...com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, masonccyang@...c.com.tw,
        linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: mtd: nand: Macronix: document new
 binding

Hi Álvaro,

noltari@...il.com wrote on Thu, 23 Mar 2023 13:45:09 +0100:

> Add new "mxic,disable-block-protection" binding documentation.
> This binding allows disabling block protection support for those devices not
> supporting it.
> 
> Signed-off-by: Álvaro Fernández Rojas <noltari@...il.com>
> ---
>  Documentation/devicetree/bindings/mtd/nand-macronix.txt | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mtd/nand-macronix.txt b/Documentation/devicetree/bindings/mtd/nand-macronix.txt
> index ffab28a2c4d1..03f65ca32cd3 100644
> --- a/Documentation/devicetree/bindings/mtd/nand-macronix.txt
> +++ b/Documentation/devicetree/bindings/mtd/nand-macronix.txt
> @@ -16,6 +16,9 @@ in children nodes.
>  Required NAND chip properties in children mode:
>  - randomizer enable: should be "mxic,enable-randomizer-otp"
>  
> +Optional NAND chip properties in children mode:
> +- block protection disable: should be "mxic,disable-block-protection"
> +

Besides the fact that nowadays we prefer to see binding conversions to
yaml before adding anything, I don't think this will fly.

I'm not sure exactly what "disable block protection" means, we
already have similar properties like "lock" and "secure-regions", not
sure they will fit but I think it's worth checking.

Otherwise, why would you disable the block protection? What does it
mean exactly? I'm not in favor of a Macronix-specific property here.

Thanks,
Miquèl