linux-toradex.git/include/linux/of_mdio.h, branch v4.6-rc3

of: mdio: export of_mdio_parse_addr

2015-03-11T21:56:28+00:00

Export of_mdio_parse_addr() which allows parsing a given Ethernet PHY
node MDIO address, verify it is within the allowed range, and return
its value. This is going to be useful for the DSA code which needs to
deal with multiple layers of MDIO buses.

Signed-off-by: Florian Fainelli 
Acked-by: Rob Herring 
Signed-off-by: David S. Miller

net: fix circular dependency in of_mdio code

2014-07-02T07:24:14+00:00

Commit 86f6cf4127 (net: of_mdio: add of_mdiobus_link_phydev()) introduced a
circular dependency between libphy and of_mdio.

depmod: ERROR: /kernel/drivers/net/phy/libphy.ko in
dependency cycle!
depmod: ERROR: /kernel/drivers/of/of_mdio.ko in dependency cycle!

The problem is that of_mdio.c references &mdio_bus_type and libphy now
references of_mdiobus_link_phydev.

Fix this by not exporting of_mdiobus_link_phydev() from of_mdio.ko.
Make it a static function in mdio_bus.c instead.

Signed-off-by: Daniel Mack 
Reported-by: Jeff Mahoney 
Fixes: 86f6cf4127 (net: of_mdio: add of_mdiobus_link_phydev())
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: of_mdio: add of_mdiobus_link_phydev()

2014-05-29T22:23:29+00:00

Add a function to walk the list of subnodes of a mdio bus and look for
a node that matches the phy's address with its 'reg' property. If found,
set the of_node pointer for the phy. This allows auto-probed pyh
devices to be augmented by information passed in via DT.

Signed-off-by: Daniel Mack 
Reviewed-by: Florian Fainelli 
Signed-off-by: David S. Miller

of: mdio: remove of_phy_connect_fixed_link

2014-05-22T19:16:44+00:00

All in-tree drivers have been converted to use the new pair of
functions: of_is_fixed_phy_link() plus of_phy_register_fixed_link(), we
can now safely remove of_phy_connect_fixed_link.

Signed-off-by: Florian Fainelli 
Signed-off-by: David S. Miller

of: provide a binding for fixed link PHYs

2014-05-16T21:19:22+00:00

Some Ethernet MACs have a "fixed link", and are not connected to a
normal MDIO-managed PHY device. For those situations, a Device Tree
binding allows to describe a "fixed link" using a special PHY node.

This patch adds:

 * A documentation for the fixed PHY Device Tree binding.

 * An of_phy_is_fixed_link() function that an Ethernet driver can call
   on its PHY phandle to find out whether it's a fixed link PHY or
   not. It should typically be used to know if
   of_phy_register_fixed_link() should be called.

 * An of_phy_register_fixed_link() function that instantiates the
   fixed PHY into the PHY subsystem, so that when the driver calls
   of_phy_connect(), the PHY device associated to the OF node will be
   found.

These two additional functions also support the old fixed-link Device
Tree binding used on PowerPC platforms, so that ultimately, the
network device drivers for those platforms could be converted to use
of_phy_is_fixed_link() and of_phy_register_fixed_link() instead of
of_phy_connect_fixed_link(), while keeping compatibility with their
respective Device Tree bindings.

Signed-off-by: Thomas Petazzoni 
Reviewed-by: Florian Fainelli 
Tested-by: Florian Fainelli 
Signed-off-by: David S. Miller

net: mdio: of_mdiobus_register(): fall back to mdiobus_register() for !CONFIG_OF

2014-05-07T21:16:35+00:00

If CONFIG_OF is not set, make of_mdiobus_register() call
mdiobus_register() instead of returning -ENOSYS.

This way, we can just call of_mdiobus_register() from all DT-enabled
drivers to handle the compat cases.

Signed-off-by: Daniel Mack 
Suggested-by: Florian Fainelli 
Acked-by: Florian Fainelli 
Acked-by: Mugunthan V N 
Signed-off-by: David S. Miller

phylib: Add of_phy_attach

2014-01-13T22:29:49+00:00

10G PHYs don't currently support running the state machine, which
is implicitly setup via of_phy_connect(). Therefore, it is necessary
to implement an OF version of phy_attach(), which does everything
except start the state machine.

Signed-off-by: Andy Fleming 
Signed-off-by: Shaohui Xie 
Acked-by: Florian Fainelli 
Signed-off-by: David S. Miller

of/mdio: Staticise !CONFIG_OF stubs

2012-10-11T02:41:05+00:00

The !CONFIG_OF stubs aren't static so if multiple files include the
header with this configuration then the linker will see multiple
definitions of the stubs.

Reported-by: Fengguang Wu 
Signed-off-by: Mark Brown 
Acked-by: Thomas Petazzoni 
Acked-by: Srinivas Kandagatla 
Signed-off-by: David S. Miller

of/mdio: Add dummy functions in of_mdio.h.

2012-08-30T16:37:52+00:00

This patch adds dummy functions in of_mdio.h, so that driver need not
ifdef there code with CONFIG_OF.

Signed-off-by: Srinivas Kandagatla 
Signed-off-by: David S. Miller

netdev/of/phy: New function: of_mdio_find_bus().

2012-05-08T02:58:09+00:00

Add of_mdio_find_bus() which allows an mii_bus to be located given its
associated the device tree node.

This is needed by the follow-on patch to add a driver for MDIO bus
multiplexers.

The of_mdiobus_register() function is modified so that the device tree
node is recorded in the mii_bus.  Then we can find it again by
iterating over all mdio_bus_class devices.

Because the OF device tree has now become an integral part of the
kernel, this can live in mdio_bus.c (which contains the needed
mdio_bus_class structure) instead of of_mdio.c.

Signed-off-by: David Daney 
Cc: Grant Likely 
Cc: "David S. Miller" 
Signed-off-by: David S. Miller