netdev - Re: [RFC PATCH 08/13] dwmac-meson8b: add support for phy selection

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Message-ID: <20161021155408.GR16974@lunn.ch>
Date:   Fri, 21 Oct 2016 17:54:08 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     khilman@...libre.com, carlo@...one.org, linus.walleij@...aro.org,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org
Subject: Re: [RFC PATCH 08/13] dwmac-meson8b: add support for phy selection

On Fri, Oct 21, 2016 at 04:40:33PM +0200, Neil Armstrong wrote:
> The Meson GXL dwmac Glue Layer also provides switching between an external PHY
> and an internal RMII 10/100 PHY.
> Add a way to setup the correct PHY switching from a device tree attribute.

Humm, actually. Maybe PHY_IS_INTERNAL in the phydrv->flags is the
better solution. The MAC can then use phy_is_internal(ndev->phydev) to
decide if this register needs programming.

       Andrew