linux-kernel - Re: [PATCH net-next v1 07/10] net: dsa: microchip: warn about not supported synclko properties on KSZ9893 chips

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Message-ID: <20220805134234.ps4qfjiachzm7jv4@skbuf>
Date:   Fri, 5 Aug 2022 16:42:34 +0300
From:   Vladimir Oltean <olteanv@...il.com>
To:     Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     Woojung Huh <woojung.huh@...rochip.com>,
        UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH net-next v1 07/10] net: dsa: microchip: warn about not
 supported synclko properties on KSZ9893 chips

On Fri, Aug 05, 2022 at 01:56:01PM +0200, Oleksij Rempel wrote:
> Hm, if we will have any random not support OF property in the switch
> node. We won't be able to warn about it anyway. So, if it is present
> but not supported, we will just ignore it.
> 
> I'll drop this patch.

To continue, I think the right way to go about this is to edit the
dt-schema to say that these properties are only applicable to certain
compatible strings, rather than for all. Then due to the
"unevaluatedProperties: false", you'd get the warnings you want, at
validation time.