netdev - Re: [PATCH net] net: dsa: Do not override PHY interface if already configured

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Date:	Wed, 12 Aug 2015 14:30:35 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	f.fainelli@...il.com
Cc:	netdev@...r.kernel.org, andrew@...n.ch, linux@...ck-us.net
Subject: Re: [PATCH net] net: dsa: Do not override PHY interface if already
 configured

From: Florian Fainelli <f.fainelli@...il.com>
Date: Sat,  8 Aug 2015 12:58:57 -0700

> In case we need to divert reads/writes using the slave MII bus, we may have
> already fetched a valid PHY interface property from Device Tree, and that
> mode is used by the PHY driver to make configuration decisions.
> 
> If we could not fetch the "phy-mode" property, we will assign p->phy_interface
> to PHY_INTERFACE_MODE_NA, such that we can actually check for that condition as
> to whether or not we should override the interface value.
> 
> Fixes: 19334920eaf7 ("net: dsa: Set valid phy interface type")
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
> ---
> Hi Guenter,
> 
> Could you verify this does not break what you were trying to fix with your change?
> I am fairly confident this will not because for "PHYs" built-into the switch port
> we will not be able to fetch a "phy-mode" property from DT, so we will use
> PHY_INTERFACE_MODE_NA, but here, we will re-assign them to PHY_INTERFACE_MODE_GMII
> as before.

I was trying to wait for Guenter's testing before applying this, but it's been some
time already and it makes no sense to wait any longer.

Applied to 'net', thanks Florian.
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