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authorAndrew Lunn <andrew@lunn.ch>2020-04-14 02:34:39 +0200
committerDavid S. Miller <davem@davemloft.net>2020-04-14 16:33:26 -0700
commit3be98b2d5fbca3da7c4df0477eed95bfb5b83d64 (patch)
tree6f64bee195b93659e90e5cf2b4e6f8f45473a54c /net
parent34b5e6a33c1a8e466c3a73fd437f66fb16cb83ea (diff)
downloadlinux-3be98b2d5fbca3da7c4df0477eed95bfb5b83d64.tar.bz2
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>
Diffstat (limited to 'net')
-rw-r--r--net/dsa/port.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/net/dsa/port.c b/net/dsa/port.c
index 231b2d494f1c..a58fdd362574 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;
}