From: Andrew Lunn
Date: Mon, 6 Jul 2015 20:34:55 +0200
> When a switch is attached to the mdio bus, the mdio bus can be used
> while the interface is not open. If the IPG clock is not enabled, MDIO
> reads/writes will simply time out.
>
> Add support for runtime PM to control this clock. Enable
From: Andrew Lunn Sent: Tuesday, July 07, 2015 2:35 AM
> To: David Miller
> Cc: Duan Fugang-B38611; Cory Tusar; netdev; Andrew Lunn
> Subject: [PATCH v5] net: fec: Ensure clocks are enabled while using mdio
> bus
>
> When a switch is attached to the mdio bus, the mdio bus can be used while
> the
