phy: power management support

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This patch adds the power management support into the physical
abstraction layer.

Suspend and resume functions respectively turns on/off the bit 11
into the PHY Basic mode control register.
Generic PHY device starts supporting PM.

In order to support the wake-on LAN and avoid to put in power down
the PHY device, the MDIO is aware of what the Ethernet device wants to do.

Voluntary, no CONFIG_PM defines were added into the sources.
Also generic suspend/resume functions are exported to allow
other drivers use them (such as genphy_config_aneg etc.).

Within the phy_driver_register function, we need to remove the
memset. It overrides the device driver owner and it is not good.

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

Giuseppe Cavallaro 2008-11-28 16:24:56 -08:00 • committed by David S. Miller

parent 914804b95c

commit 0f0ca340e5

3 changed files with 42 additions and 5 deletions

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14

drivers/net/phy/mdio_bus.c

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31

drivers/net/phy/phy_device.c

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2

include/linux/phy.h

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