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 <[email protected]>
---
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.
Thanks!
net/dsa/slave.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 0917123790ea..35c47ddd04f0 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -756,7 +756,8 @@ static int dsa_slave_phy_connect(struct dsa_slave_priv *p,
return -ENODEV;
/* Use already configured phy mode */
- p->phy_interface = p->phy->interface;
+ if (p->phy_interface == PHY_INTERFACE_MODE_NA)
+ p->phy_interface = p->phy->interface;
phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link,
p->phy_interface);
--
2.1.0
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