netdev - Re: [net-next v5 1/3] dt-bindings: net: dsa: yt921x: Add Motorcomm YT921x switch support

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Message-ID: <ce66b757-f17d-458c-83f4-e8f2785c271c@lunn.ch>
Date: Thu, 21 Aug 2025 14:20:09 +0200
From: Andrew Lunn <andrew@...n.ch>
To: David Yang <mmyangfl@...il.com>
Cc: netdev@...r.kernel.org, Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Simon Horman <horms@...nel.org>,
	Russell King <linux@...linux.org.uk>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [net-next v5 1/3] dt-bindings: net: dsa: yt921x: Add Motorcomm
 YT921x switch support

> +        switch@1d {
> +            compatible = "motorcomm,yt9215";
> +            /* default 0x1d, alternate 0x0 */
> +            reg = <0x1d>;

Just curious, what does alternative 0x0 mean? Does this switch have
only one strapping pin for address, so it either uses address 0x1d or
0x0?

	Andrew