linux.git/drivers/net/phy/micrel.c, branch v4.5

phy: micrel: Disable auto negotiation on startup

2016-03-01T21:52:09+00:00

Disable auto negotiation on init to properly detect an already plugged
cable at boot.

At boot, when the phy is started, it is in the PHY_UP state.
However, if a cable is plugged at boot, because auto negociation is already
enabled at the time we get the first interrupt, the phy is already running.
But the state machine then switches from PHY_UP to PHY_AN and calls
phy_start_aneg(). phy_start_aneg() will not do anything because aneg is
already enabled on the phy. It will then wait for a interrupt before going
further. This interrupt will never happen unless the cable is unplugged and
then replugged.

It was working properly before 321beec5047a (net: phy: Use interrupts when
available in NOLINK state) because switching to NOLINK meant starting
polling the phy, even if IRQ were enabled.

Fixes: 321beec5047a (net: phy: Use interrupts when available in NOLINK state)
Signed-off-by: Alexandre Belloni 
Signed-off-by: David S. Miller

phy: micrel: Ensure interrupts are reenabled on resume

2016-03-01T21:52:08+00:00

At least on ksz8081, when getting back from power down, interrupts are
disabled. ensure they are reenabled if they were previously enabled.

This fixes resuming which is failing on the xplained boards from atmel
since 321beec5047a (net: phy: Use interrupts when available in NOLINK
state)

Fixes: 321beec5047a (net: phy: Use interrupts when available in NOLINK state)
Signed-off-by: Alexandre Belloni 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2016-01-12T04:55:43+00:00

Conflicts:
	drivers/net/bonding/bond_main.c
	drivers/net/ethernet/mellanox/mlxsw/spectrum.h
	drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

The bond_main.c and mellanox switch conflicts were cases of
overlapping changes.

Signed-off-by: David S. Miller

phy: micrel: Fix finding PHY properties in MAC node for KSZ9031.

2016-01-09T02:48:34+00:00

Commit 651df2183543 ("phy: micrel: Fix finding PHY properties in MAC
 node.") only fixes finding PHY properties in MAC node for KSZ9021. This
commit applies the same fix for KSZ9031.

Fixes: 8b63ec1837fa ("phylib: Make PHYs children of their MDIO bus, not the bus' parent.")
Acked-by: Andrew Lunn 
Signed-off-by: Henri Roosen 
Signed-off-by: David S. Miller

phy: Centralize setting driver module owner

2016-01-07T19:31:27+00:00

Rather than have each driver set the driver owner field, do it once in
the core code. This will also help with later changes, when the device
structure will move.

Signed-off-by: Andrew Lunn 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

phy: Add an mdio_device structure

2016-01-07T19:31:26+00:00

Not all devices attached to an MDIO bus are phys. So add an
mdio_device structure to represent the generic parts of an mdio
device, and place this structure into the phy_device.

Signed-off-by: Andrew Lunn 
Signed-off-by: David S. Miller

phy: Add phydev_err() and phydev_dbg() macros

2016-01-07T19:31:24+00:00

In preparation for moving some of the phy_device structure members,
add macros for printing errors and debug information.

Signed-off-by: Andrew Lunn 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

phy: micrel: Add ethtool statistics counters

2015-12-31T05:53:10+00:00

The PHY counters receiver errors and errors while idle.

Signed-off-by: Andrew Lunn 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

phy: micrel: Fix finding PHY properties in MAC node.

2015-12-12T01:31:15+00:00

commit 8b63ec1837fa ("phylib: Make PHYs children of their MDIO bus,
not the bus' parent.")  changed the parenting of PHY devices, making
them a child of the MDIO bus, instead of the MAC device. This broken
the Micrel PHY driver which has a deprecated feature of allowing PHY
properties to be placed into the MAC node.

In order to find the MAC node, we need to walk up the tree of devices
until we find one with an OF node attached.

Reported-by: Dinh Nguyen 
Suggested-by: David Daney 
Acked-by: David Daney 
Fixes: 8b63ec1837fa ("phylib: Make PHYs children of their MDIO bus, not the bus' parent.")
Signed-off-by: Andrew Lunn 
Tested-by: Dinh Nguyen 
Acked-by: Florian Fainelli 
Signed-off-by: David S. Miller

net/phy: micrel: Add workaround for bad autoneg

2015-10-23T09:57:26+00:00

Very rarely, the KSZ9031 will appear to complete autonegotiation, but
will drop all traffic afterwards.  When this happens, the idle error
count will read 0xFF after autonegotiation completes.  Reset the PHY
when in that state.

Signed-off-by: Nathan Sullivan 
Signed-off-by: David S. Miller