linux-kernel - Re: [net-next PATCH v11 4/9] dt-bindings: mfd: Document support for Airoha AN8855 Switch SoC

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Message-ID: <20241210205544.g6y7vcyekyfebkoo@skbuf>
Date: Tue, 10 Dec 2024 22:55:44 +0200
From: Vladimir Oltean <olteanv@...il.com>
To: Christian Marangi <ansuelsmth@...il.com>
Cc: Lee Jones <lee@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	upstream@...oha.com
Subject: Re: [net-next PATCH v11 4/9] dt-bindings: mfd: Document support for
 Airoha AN8855 Switch SoC

On Mon, Dec 09, 2024 at 02:44:21PM +0100, Christian Marangi wrote:
> +properties:
> +  compatible:
> +    const: airoha,an8855-mfd

After assisting dt-binding reviews in the past, I get the impression
that "mfd" in a compatible string name is not going to be accepted.
The bindings should be OS-independent, MFD is a Linux implementation.
In principle this could be just "airoha,an8855" for the entire SoC.

> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    mdio {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        mfd@1 {

And the node name could be just "soc@1".

> +            compatible = "airoha,an8855-mfd";
> +            reg = <1>;
> +
> +            efuse {
...
> +            };
> +
> +            ethernet-switch {
...
> +            };
> +
> +            mdio {
...
> +            };
> +        };
> +    };

I hope it's not mandatory to duplicate in the example also the bindings
of the children, especially since you link to their own schemas.