netdev - Re: SoCFPGA ethernet broken

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Message-ID: <20151016202905.GE28207@lunn.ch>
Date:	Fri, 16 Oct 2015 22:29:05 +0200
From:	Andrew Lunn <andrew@...n.ch>
To:	David Daney <ddaney@...iumnetworks.com>
Cc:	Dinh Nguyen <dinguyen@...nsource.altera.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	"David S. Miller" <davem@...emloft.net>, david.daney@...ium.com,
	netdev@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: SoCFPGA ethernet broken

On Fri, Oct 16, 2015 at 01:24:16PM -0700, David Daney wrote:
> On 10/16/2015 12:38 PM, Andrew Lunn wrote:
> >>>Maybe we need to walk up the hierarchy.
> >>>
> >>>Perhaps something like:
> >>>
> >>>const struct device *dev_walker;
> >>>
> >>>dev_walker = &phydev->dev;
> >>>do {
> >>>    of_node = dev_walker->of_node;
> >>>    dev_walker = dev_walker->parent;
> >>>} while (!of_node && dev_walker);
> >>>
> >>
> >>The above code seems to have fixed the issue.
> >
> >What i don't like about this is that it allows you to put these
> >properties in the mdio device node. These are phy properties, not mdio
> >properties....
> 
> Yes, we know that the device tree is not correctly formed.
> 
> You have a choice:
> 
> A) Fix the device tree and any code that may have to change to work
> with a good device tree.
> 
> B) Change the code to work with the screwy existing device tree.
> The above seems to work, other things may also be possible.
> 
> I can't really make any decisions as to what the best way to proceed
> is, as I neither have the hardware in question, nor the time to work
> on it.

Hi hope Dinh will test with phydev->attached_dev->dev->of_node.

   Andrew
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