netdev - Re: [PATCH 2/2] net: lpc_eth: parse phy nodes from device tree

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Message-Id: <20191015.172227.1754483638007790724.davem@davemloft.net>
Date:   Tue, 15 Oct 2019 17:22:27 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     alexandre.belloni@...tlin.com
Cc:     vz@...ia.com, slemieux.tyco@...il.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 2/2] net: lpc_eth: parse phy nodes from device tree

From: Alexandre Belloni <alexandre.belloni@...tlin.com>
Date: Thu, 10 Oct 2019 22:45:30 +0200

> When connected to a micrel phy, phy_find_first doesn't work properly
> because the first phy found is on address 0, the broadcast address but, the
> first thing the phy driver is doing is disabling this broadcast address.
> The phy is then available only on address 1 but the mdio driver doesn't
> know about it.
> 
> Instead, register the mdio bus using of_mdiobus_register and try to find
> the phy description in device tree before falling back to phy_find_first.
> 
> This ultimately also allows to describe the interrupt the phy is connected
> to.
> 
> Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>

Please respond to Andrew's feedback.