linux-stable.git/drivers/net/phy/phy_device.c, branch linux-4.8.y

Revert "phy: add support for a reset-gpio specification"

2016-05-20T21:56:59+00:00

Commit da47b4572056 ("phy: add support for a reset-gpio specification")
causes the following xtensa qemu crash according to Guenter Roeck:

[    9.366256] libphy: ethoc-mdio: probed
[    9.367389]  (null): could not attach to PHY
[    9.368555]  (null): failed to probe MDIO bus
[    9.371540] Unable to handle kernel paging request at virtual address 0000001c
[    9.371540]  pc = d0320926, ra = 903209d1
[    9.375358] Oops: sig: 11 [#1]

This reverts commit da47b4572056487fd7941c26f73b3e8815ff712a.

Reported-by: Guenter Roeck 
Signed-off-by: Fabio Estevam 
Acked-by: Florian Fainelli 
Tested-by: Guenter Roeck 
Signed-off-by: David S. Miller

phy: add support for a reset-gpio specification

2016-05-16T17:22:53+00:00

The framework only asserts (for now) that the reset gpio is not active.

Signed-off-by: Uwe Kleine-König 
Reviewed-by: Roger Quadros 
Signed-off-by: David S. Miller

phylib: don't return NULL from get_phy_device()

2016-04-26T19:41:19+00:00

Arnd Bergmann asked that get_phy_device() returns either NULL or the error
value,  not both on error.  Do as he said, return ERR_PTR(-ENODEV) instead
of NULL when the PHY ID registers read as  all ones.

Suggested-by: Arnd Bergmann 
Signed-off-by: Sergei Shtylyov 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

phy: make some bits preserved while setup forced mode

2016-04-16T00:10:00+00:00

When tested the PHY SGMII Loopback:
1.set the LOOPBACK bit,
2.set the autoneg to AUTONEG_DISABLE, it calls the
genphy_setup_forced which will clear the bit.

The BMCR_LOOPBACK bit should be preserved.

As Florian pointed out that other bits should be preserved too.
So I make the BMCR_ISOLATE and BMCR_PDOWN as well.

Signed-off-by: Weidong Wang 
Signed-off-by: David S. Miller

phy: keep pause flags in phy driver features

2016-02-17T15:48:07+00:00

genphy_config_init() masked out pause flags set in phy driver structure.
Pause flags needs to be preserved in phydev->supported &
phydev->advertising.

Signed-off-by: Woojung Huh 
Signed-off-by: David S. Miller

net: phy: turn carrier off on phy attach

2016-01-15T19:49:11+00:00

The operstate of a networking device initially IF_OPER_UNKNOWN aka
"unknown", updated on carrier state changes (with carrier state being on
by default). This means it will stay unknown unless the carrier state
goes to off at some point, which is not the case if the phy is already
up/connected at startup.

Explicitly turn off the carrier on phy attach, leaving the phy state
machine to turn the carrier on when it has done the initial negotiation.

Signed-off-by: Sjoerd Simons 
Signed-off-by: David S. Miller

phy: remove an unneeded condition

2016-01-12T16:51:58+00:00

It used to be that bus->irq was a pointer but after e7f4dc3536a4
('mdio: Move allocation of interrupts into core') it's an array inside
the mdio struct, so it can never be NULL.  Let's remove the check.

Reviewed-by: Andrew Lunn 
Signed-off-by: Dan Carpenter 
Signed-off-by: David S. Miller

mdio: Abstract device_remove() and device_free()

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

Make device_free and device_remove operations in the mdio device
structure, so the core code does not need to differentiate between
phy devices and generic mdio devices.

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

mdio: Add support for mdio drivers.

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

Not all devices on an MDIO bus are PHYs. Meaning not all MDIO drivers
are PHY drivers. Add support for generic MDIO drivers.

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

phy: Move phy specific bus match into phy_device

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

Matching a driver to a device has both generic parts, and parts which
are specific to PHY devices. Move the PHY specific parts into
phy_device.

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