tree 450435fc4df735cec29228780694d7e3bb98a726
parent 28eaad7504d2ca1c833299ebf5148671638732f9
author Florian Fainelli <f.fainelli@gmail.com> 1439063937 -0700
committer David S. Miller <davem@davemloft.net> 1439414990 -0700

net: dsa: Do not override PHY interface if already configured

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@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>