tree 7e81f56638235fbc4b22c769b57c59353e70b694
parent bda13fed677bdb423b97dcf054f68b9eb4c6dbfb
author Gregory CLEMENT <gregory.clement@free-electrons.com> 1449830093 +0100
committer David S. Miller <davem@davemloft.net> 1450148652 -0500

net/macb: add support for resetting PHY using GPIO

With device tree it is no more possible to reset the PHY at board
level. Furthermore, doing in the driver allow to power down the PHY when
the network interface is no more used.

This reset can't be done at the PHY driver level. The PHY must be able to
answer the to the mii bus scan to let the kernel creating a PHY device.

The patch introduces a new optional property "phy-reset-gpios" inspired
from the one use for the FEC.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>