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| author | Florian Fainelli <f.fainelli@gmail.com> | 2016-06-07 16:32:40 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-08 11:23:41 -0700 |
| commit | 1eb59443e72c69edbb836626f9f7f7e82427eeac (patch) | |
| tree | 943a2b03b3da319d2071aac18f0ddd2f9d4758ed /net | |
| parent | 6e830d8f0deca91fcb84d3156dcebb20384a9e2d (diff) | |
| download | linux-stable-1eb59443e72c69edbb836626f9f7f7e82427eeac.tar.gz linux-stable-1eb59443e72c69edbb836626f9f7f7e82427eeac.tar.bz2 linux-stable-1eb59443e72c69edbb836626f9f7f7e82427eeac.zip | |
net: dsa: Provide a slave MII bus if needed
Mimic what net/dsa/dsa.c does and provide a slave MII bus by default
which will be created if the driver implements a phy_read method.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/dsa/dsa2.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index 921a36fd139d..4e0f3c268103 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -312,6 +312,18 @@ static int dsa_ds_apply(struct dsa_switch_tree *dst, struct dsa_switch *ds) if (err < 0) return err; + if (!ds->slave_mii_bus && ds->drv->phy_read) { + ds->slave_mii_bus = devm_mdiobus_alloc(ds->dev); + if (!ds->slave_mii_bus) + return -ENOMEM; + + dsa_slave_mii_bus_init(ds); + + err = mdiobus_register(ds->slave_mii_bus); + if (err < 0) + return err; + } + for (index = 0; index < DSA_MAX_PORTS; index++) { port = ds->ports[index].dn; if (!port) @@ -361,6 +373,9 @@ static void dsa_ds_unapply(struct dsa_switch_tree *dst, struct dsa_switch *ds) dsa_user_port_unapply(port, index, ds); } + + if (ds->slave_mii_bus && ds->drv->phy_read) + mdiobus_unregister(ds->slave_mii_bus); } static int dsa_dst_apply(struct dsa_switch_tree *dst) |