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Subject: Re: [PATCH v1] net: phy: tja11xx: add TJA1102 support
To:     Oleksij Rempel <o.rempel@pengutronix.de>,
        Andrew Lunn <andrew@lunn.ch>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Heiner Kallweit <hkallweit1@gmail.com>
Cc:     Pengutronix Kernel Team <kernel@pengutronix.de>,
        linux-kernel@vger.kernel.org,
        "David S. Miller" <davem@davemloft.net>, netdev@vger.kernel.org,
        David Jander <david@protonic.nl>
References: <20200303073715.32301-1-o.rempel@pengutronix.de>
From:   Marek Vasut <marex@denx.de>
Message-ID: <0c95d6ac-b345-4218-ebad-683fbf1f4d60@denx.de>
Date:   Tue, 3 Mar 2020 13:18:55 +0100
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On 3/3/20 8:37 AM, Oleksij Rempel wrote:
> TJA1102 is an dual T1 PHY chip. Both PHYs are separately addressable.
> PHY 0 can be identified by PHY ID. PHY 1 has no PHY ID and can be
> configured in device tree by setting compatible =
> "ethernet-phy-id0180.dc81".
> 
> PHY 1 has less suported registers and functionality. For current driver
> it will affect only the HWMON support.

Can't you do some magic with match_phy_device (like in
8b95599c55ed24b36cf44a4720067cfe67edbcb4) to discern the second half of
the PHY ?