diff options
| author | Marek Behún <kabel@kernel.org> | 2023-03-19 15:02:38 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-03-21 12:52:04 +0100 |
| commit | a4926c2943dd17f84b552ba6fb754df0dc6a2fa8 (patch) | |
| tree | 195bf28fdb838698b10f1db3a21eb70dd0b06d82 /drivers/net/dsa/mv88e6xxx/chip.c | |
| parent | a08df15eab0c572bc1d98c2392bcfcd744f26eda (diff) | |
net: dsa: mv88e6xxx: fix mdio bus' phy_mask member
Commit 2c7e46edbd03 ("net: dsa: mv88e6xxx: mask apparently non-existing
phys during probing") added non-trivial bus->phy_mask in
mv88e6xxx_mdio_register() in order to avoid excessive mdio bus
transactions during probing.
But the mask is incorrect for switches with non-zero phy_base_addr (such
as 88E6341).
Fix this.
Fixes: 2c7e46edbd03 ("net: dsa: mv88e6xxx: mask apparently non-existing phys during probing")
Signed-off-by: Marek Behún <kabel@kernel.org>
Tested-by: Klaus Kudielka <klaus.kudielka@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Link: https://lore.kernel.org/r/20230319140238.9470-1-kabel@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'drivers/net/dsa/mv88e6xxx/chip.c')
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 260e38c5c6e6..b73d1d6747b7 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -3805,7 +3805,9 @@ static int mv88e6xxx_mdio_register(struct mv88e6xxx_chip *chip, bus->read_c45 = mv88e6xxx_mdio_read_c45; bus->write_c45 = mv88e6xxx_mdio_write_c45; bus->parent = chip->dev; - bus->phy_mask = GENMASK(31, mv88e6xxx_num_ports(chip)); + bus->phy_mask = ~GENMASK(chip->info->phy_base_addr + + mv88e6xxx_num_ports(chip) - 1, + chip->info->phy_base_addr); if (!external) { err = mv88e6xxx_g2_irq_mdio_setup(chip, bus); |