linux-kernel - [PATCH RFCv2 0/6] net: phy: Ethernet PHY powerdown optimization

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Message-Id: <1386171888-28190-1-git-send-email-sebastian.hesselbarth@gmail.com>
Date:	Wed,  4 Dec 2013 16:44:42 +0100
From:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
To:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Cc:	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	David Miller <davem@...emloft.net>,
	Florian Fainelli <f.fainelli@...il.com>,
	Mugunthan V N <mugunthanvnm@...com>, netdev@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH RFCv2 0/6] net: phy: Ethernet PHY powerdown optimization

This is v2 of an RFC sent earlier [1] to reduce power consumption of network
PHYs with link that are either unused or the corresponding netdev is down.

In contrast to RFCv1, this now integrates phy_suspend/phy_resume transparent
to the netdev drivers. Also, phy_suspend now only suspends the PHY if WOL is
disabled. Moreover, the phy state machine calls phy_suspend on entering
HALTED state.

Again, a branch with RFCv2 applied to v3.13-rc2 can also be found at
https://github.com/shesselba/linux-dove.git topic/ethphy-power-rfc-v2

[1] http://lwn.net/Articles/574426/

Sebastian Hesselbarth (6):
  net: mv643xx_eth: properly start/stop phy device
  net: phy: marvell: provide genphy suspend/resume
  net: phy: provide phy_resume/phy_suspend helpers
  net: phy: resume/suspend PHYs on attach/detach
  net: phy: suspend unused PHYs on mdio_bus in late_initcall
  net: phy: suspend phydev when going to HALTED

 drivers/net/ethernet/marvell/mv643xx_eth.c |    4 +++-
 drivers/net/phy/marvell.c                  |   22 ++++++++++++++++++++++
 drivers/net/phy/mdio_bus.c                 |   25 +++++++++++++++++++++++++
 drivers/net/phy/phy.c                      |    6 +++++-
 drivers/net/phy/phy_device.c               |   27 +++++++++++++++++++++++++++
 include/linux/phy.h                        |    2 ++
 6 files changed, 84 insertions(+), 2 deletions(-)

---
Cc: David Miller <davem@...emloft.net>
Cc: Florian Fainelli <f.fainelli@...il.com>
Cc: Mugunthan V N <mugunthanvnm@...com>
Cc: netdev@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
-- 
1.7.2.5

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