linux-kernel - Re: [net-next: PATCH 0/8] Armada 7k/8k PP2 ACPI support

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Message-ID: <20180103124720.GG15036@lunn.ch>
Date:   Wed, 3 Jan 2018 13:47:20 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Marcin Wojtas <mw@...ihalf.com>
Cc:     Graeme Gregory <graeme.gregory@...aro.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        "linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "<netdev@...r.kernel.org>" <netdev@...r.kernel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Russell King - ARM Linux <linux@....linux.org.uk>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Antoine Ténart 
        <antoine.tenart@...e-electrons.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Gregory CLEMENT <gregory.clement@...e-electrons.com>,
        Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
        Nadav Haklai <nadavh@...vell.com>,
        Neta Zur Hershkovits <neta@...vell.com>,
        Grzegorz Jaszczyk <jaz@...ihalf.com>,
        Tomasz Nowicki <tn@...ihalf.com>
Subject: Re: [net-next: PATCH 0/8] Armada 7k/8k PP2 ACPI support

> I already agreed with 'reg' being awkward in the later emails.
> Wouldn't _ADR be more appropriate to specify PHY address on MDIO bus?

Also, how do you specify which MDIO bus the PHY is on. To fully
specify a PHY, you need both bits of information.

In DT, the phy-handle phandle can point to any PHY anywhere in the
system. This is particularly important when a Ethernet device has two
MDIO busses.

     Andrew