Re: [PATCH 1/3] net: thunderx: Cleanup PHY probing code.

[David Daney]

On 03/11/2016 09:31 AM, Andrew Lunn wrote:
> > +		phy_np = of_parse_phandle(node, "phy-handle", 0);
> > +		/* If there is no phy or defective firmware presents
> > +		 * this cortina phy, for which there is no driver
> > +		 * support, ignore it.
> > +		 */
> > +		if (phy_np &&
> > +		    !of_device_is_compatible(phy_np, "cortina,cs4223-slice")) {
>
> Hi David
>
> What is a cortina,cs4223-slice,

It is 1/4 of:

https://www.inphi.com/products/cs4223.php

> and why does it need to be handled differently?

$ ls drivers/net/phy/*cortina*
ls: cannot access drivers/net/phy/*cortina*: No such file or directory

For this configuration of thunder_bgx.c, the use of a Linux PHY driver 
is optional.

The firmware should probably not specify a PHY here, but it does so we 
ignore it so we don't wait around forever for the non-existent driver to 
bind.