linux-kernel - Re: [PATCH v2 3/3] dt-bindings: serial: restrict possible child node names

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Date:   Fri, 27 Jan 2023 14:29:14 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Damien Le Moal <damien.lemoal@...nsource.wdc.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Linus Walleij <linusw@...nel.org>,
        Imre Kaloz <kaloz@...nwrt.org>,
        Krzysztof Halasa <khalasa@...p.pl>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Richard Weinberger <richard@....at>,
        Vignesh Raghavendra <vigneshr@...com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Marek Vasut <marex@...x.de>, Lubomir Rintel <lkundrak@...sk>,
        - <devicetree@...r.kernel.org>, Marc Zyngier <maz@...nel.org>,
        linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mtd@...ts.infradead.org, linux-serial@...r.kernel.org,
        linux-watchdog@...r.kernel.org
Subject: Re: [PATCH v2 3/3] dt-bindings: serial: restrict possible child node names

On Fri, Jan 27, 2023 at 10:32 AM Krzysztof Kozlowski
<krzysztof.kozlowski@...aro.org> wrote:

> The re-usable serial.yaml schema matches every property with ".*"
> pattern, thus any other schema referencing it will not report unknown
> (unevaluated) properties.  This hides several wrong properties.  It is
> a limitation of dtschema, thus provide a simple workaround: expect
> children to be only of few names matching upstream usage (Bluetooth,
> GNSS, GPS and MCU).
>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Fair enough,
Acked-by: Linus Walleij <linus.walleij@...aro.org>

However I think V.35 WAN devices (high speed serial network links)
should actually be using this? They are just some fancy serial port
after all. Cf
Documentation/devicetree/bindings/net/intel,ixp4xx-hss.yaml

No big deal I guess since they are mostly an anarchronism and not
on the table right now.

Yours,
Linus Walleij