kernel/git/stable/linux.git/drivers/net/phy/mdio-gpio.c, branch master

net: mdio: Move MDIO drivers into a new subdirectory

2020-08-27T13:55:50+00:00

Move all the MDIO drivers and multiplexers into drivers/net/mdio. The mdio core is however left in the phy directory, due to mutual dependencies between the MDIO core and the PHY core. Take this opportunity to sort the Kconfig based on the menuconfig strings, and move the multiplexers to the end with a separating comment. v2: Fix typo in commit message Acked-by: Florian Fainelli Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: Fixup GPLv2 SPDX tags based on license text

2019-01-23T04:58:40+00:00

A few PHY drivers have the GPLv2 license text. They then either have a MODULE_LICENSE() of GPLv2+, or an SPDX tag of GPLv2+. Since the license text is much easier to understand than either the SPDX tag or the MODULE_LICENSE, use it as the definitive source of the licence, and fixup with others when there are contradictions. Cc: Russell King Cc: Jonas Jensen Cc: Laurent Pinchart Cc: Paulius Zaleckas Cc: Scott Wood Acked-by: Maxime Ripard Acked-by: Andrew F. Davis Acked-by: Dan Murphy Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: mdio-gpio: Add phy_ignore_ta_mask to platform data

2018-12-09T05:33:30+00:00

The Marvell 6390 Ethernet switch family does not perform MDIO turnaround correctly. Many hardware MDIO bus masters don't care about this, but the bitbangging implementation in Linux does by default. Add phy_ignore_ta_mask to the platform data so that the bitbangging code can be told which devices are known to get TA wrong. v2 Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: phy: mdio-gpio: Add platform_data support for phy_mask

2018-12-09T05:33:30+00:00

It is sometimes necessary to instantiate a bit-banging MDIO bus as a platform device, without the aid of device tree. When device tree is being used, the bus is not scanned for devices, only those devices which are in device tree are probed. Without device tree, by default, all addresses on the bus are scanned. This may then find a device which is not a PHY, e.g. a switch. And the switch may have registers containing values which look like a PHY. So during the scan, a PHY device is wrongly created. After the bus has been registered, a search is made for mdio_board_info structures which indicates devices on the bus, and the driver which should be used for them. This is typically used to instantiate Ethernet switches from platform drivers. However, if the scanning of the bus has created a PHY device at the same location as indicated into the board info for a switch, the switch device is not created, since the address is already busy. This can be avoided by setting the phy_mask of the mdio bus. This mask prevents addresses on the bus being scanned. v2 Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs

2018-11-18T05:11:51+00:00

Up until commit 7e5fbd1e0700 ("net: mdio-gpio: Convert to use gpiod functions where possible"), the _cansleep variants of the gpio_ API was used. After that commit and the change to gpiod_ API, the _cansleep() was dropped. This then results in WARN_ON() when used with GPIO devices which do sleep. Add back the _cansleep() to avoid this. Fixes: 7e5fbd1e0700 ("net: mdio-gpio: Convert to use gpiod functions where possible") Signed-off-by: Martin Schiller Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

Revert "net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs"

2018-11-17T07:04:37+00:00

This reverts commit dfa0d55ff6be64e7b6881212a291cb95f8da3b08. Discussion still ongoing, I shouldn't have applied this. Signed-off-by: David S. Miller

net: phy: mdio-gpio: Fix working over slow can_sleep GPIOs

2018-11-17T04:25:22+00:00

This commit re-enables support for slow GPIO pins. It was initially introduced by commit 2d6c9091ab76 ("net: mdio-gpio: support access that may sleep") and got lost by commit 7e5fbd1e0700 ("net: mdio-gpio: Convert to use gpiod functions where possible"). Also add a warning about slow GPIO pins like it is done in i2c-gpio. Signed-off-by: Martin Schiller Signed-off-by: David S. Miller

net: phy: mdio-gpio: Cut surplus includes

2018-06-12T22:23:55+00:00

The GPIO MDIO driver now needs only so cut the legacy and includes that are no longer used. Signed-off-by: Linus Walleij Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller

drivers: net: Remove device_node checks with of_mdiobus_register()

2018-05-16T18:20:36+00:00

A number of drivers have the following pattern: if (np) of_mdiobus_register() else mdiobus_register() which the implementation of of_mdiobus_register() now takes care of. Remove that pattern in drivers that strictly adhere to it. Signed-off-by: Florian Fainelli Reviewed-by: Grygorii Strashko Reviewed-by: Fugang Duan Reviewed-by: Antoine Tenart Reviewed-by: Jose Abreu Signed-off-by: David S. Miller

net: phy: mdio-gpio: Remove redundant platform data header

2018-04-19T19:59:11+00:00

The platform data header file is now unused. Remove it, but add an extra include which it brought in. Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller