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[PATCH v3 0/3] netdev/of/phy: MDIO bus multiplexer support.

To: Grant Likely <grant.likely@secretlab.ca>, Rob Herring <rob.herring@calxeda.com>, devicetree-discuss@lists.ozlabs.org, "David S. Miller" <davem@davemloft.net>, netdev@vger.kernel.org
Subject: [PATCH v3 0/3] netdev/of/phy: MDIO bus multiplexer support.
From: David Daney <ddaney.cavm@gmail.com>
Date: Mon, 16 Apr 2012 18:03:25 -0700
Cc: linux-kernel@vger.kernel.org, linux-mips@linux-mips.org, afleming@gmail.com, galak@kernel.crashing.org, David Daney <david.daney@cavium.com>
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Sender: linux-mips-bounce@linux-mips.org
From: David Daney <david.daney@cavium.com>

This code has been working well for about six months on a couple of
different configurations (boards), so I thought it would be a good
time to send it out again, and I hope get it on the path towards
merging.


v3: Update binding to use "mdio-mux-gpio" compatible property.
    Cleanups suggested by Grant Likely.  Now uses the driver probe
    deferral mechanism if GPIOs or parent bus not available.

v2: Update bindings to use "reg" and "mdio-parent-bus" instead of
    "cell-index" and "parent-bus"

v1:

We have several different boards with a multiplexer in the MDIO bus.
There is an MDIO bus controller connected to a switching device with
several child MDIO busses.

Everything is wired up using device tree bindings.

 1/3 - New of_mdio_find_bus() function used to help configuring the
       driver topology.

 2/3 - MDIO bus multiplexer framework.

 3/3 - A driver for a GPIO controlled multiplexer.

David Daney (3):
  netdev/of/phy: New function: of_mdio_find_bus().
  netdev/of/phy: Add MDIO bus multiplexer support.
  netdev/of/phy: Add MDIO bus multiplexer driven by GPIO lines.

 .../devicetree/bindings/net/mdio-mux-gpio.txt      |  127 +++++++++++++
 Documentation/devicetree/bindings/net/mdio-mux.txt |  136 ++++++++++++++
 drivers/net/phy/Kconfig                            |   18 ++
 drivers/net/phy/Makefile                           |    2 +
 drivers/net/phy/mdio-mux-gpio.c                    |  142 +++++++++++++++
 drivers/net/phy/mdio-mux.c                         |  192 ++++++++++++++++++++
 drivers/net/phy/mdio_bus.c                         |   32 ++++
 drivers/of/of_mdio.c                               |    2 +
 include/linux/mdio-mux.h                           |   21 ++
 include/linux/of_mdio.h                            |    2 +
 10 files changed, 674 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/mdio-mux-gpio.txt
 create mode 100644 Documentation/devicetree/bindings/net/mdio-mux.txt
 create mode 100644 drivers/net/phy/mdio-mux-gpio.c
 create mode 100644 drivers/net/phy/mdio-mux.c
 create mode 100644 include/linux/mdio-mux.h

-- 
1.7.2.3


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