Subject: Re: [PATCH net-next RFC V1 5/5] net: mdio: Add a driver for InES time stamping IP core.

From: Andrew Lunn <[email-masked]>
Date: Tue, 3 Apr 2018 15:13:19 +0200

> On Mon, Apr 02, 2018 at 08:55:27PM -0700, Richard Cochran wrote:
> On Sun, Mar 25, 2018 at 04:01:49PM -0700, Florian Fainelli wrote:
> > The best that I can think about and it still is a hack in some way, is
> > to you have your time stamping driver create a proxy mii_bus whose
> > purpose is just to hook to mdio/phy_device events (such as link changes)
> > in order to do what is necessary, or at least, this would indicate its
> > transparent nature towards the MDIO/MDC lines...
> 
> That won't work at all, AFAICT.  There is only one mii_bus per netdev,
> that is one that is attached to the phydev.

Hi Richard

Have you tried implementing it using a phandle in the phy node,
pointing to the time stamping device?

I think it makes a much better architecture.

  Andrew