Re: [PATCH v6 2/3] netdev/of/phy: Add MDIO bus multiplexer support.

From: David Daney <redacted>
Date: Wed,  2 May 2012 18:16:38 -0700

From: David Daney <redacted>

This patch adds a somewhat generic framework for MDIO bus
multiplexers.  It is modeled on the I2C multiplexer.

The multiplexer is needed if there are multiple PHYs with the same
address connected to the same MDIO bus adepter, or if there is
insufficient electrical drive capability for all the connected PHY
devices.

Conceptually it could look something like this:

 ...

This framework configures the bus topology from device tree data.  The
mechanics of switching the multiplexer is left to device specific
drivers.

The follow-on patch contains a multiplexer driven by GPIO lines.

Signed-off-by: David Daney <redacted>

Applied.