diff options
| author | Andrew Lunn <andrew@lunn.ch> | 2020-04-14 02:34:39 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-14 16:33:26 -0700 |
| commit | 3be98b2d5fbca3da7c4df0477eed95bfb5b83d64 (patch) | |
| tree | 6f64bee195b93659e90e5cf2b4e6f8f45473a54c | |
| parent | 34b5e6a33c1a8e466c3a73fd437f66fb16cb83ea (diff) | |
| download | linux-3be98b2d5fbca3da7c4df0477eed95bfb5b83d64.tar.gz | |
net: dsa: Down cpu/dsa ports phylink will control
DSA and CPU ports can be configured in two ways. By default, the
driver should configure such ports to there maximum bandwidth. For
most use cases, this is sufficient. When this default is insufficient,
a phylink instance can be bound to such ports, and phylink will
configure the port, e.g. based on fixed-link properties. phylink
assumes the port is initially down. Given that the driver should have
already configured it to its maximum speed, ask the driver to down
the port before instantiating the phylink instance.
Fixes: 30c4a5b0aad8 ("net: mv88e6xxx: use resolved link config in mac_link_up()")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/dsa/port.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c index 231b2d494f1cb4..a58fdd3625743d 100644 --- a/net/dsa/port.c +++ b/net/dsa/port.c @@ -670,11 +670,16 @@ int dsa_port_link_register_of(struct dsa_port *dp) { struct dsa_switch *ds = dp->ds; struct device_node *phy_np; + int port = dp->index; if (!ds->ops->adjust_link) { phy_np = of_parse_phandle(dp->dn, "phy-handle", 0); - if (of_phy_is_fixed_link(dp->dn) || phy_np) + if (of_phy_is_fixed_link(dp->dn) || phy_np) { + if (ds->ops->phylink_mac_link_down) + ds->ops->phylink_mac_link_down(ds, port, + MLO_AN_FIXED, PHY_INTERFACE_MODE_NA); return dsa_port_phylink_register(dp); + } return 0; } |