tree 477b38213c685bd8a68eb75af5585244f32722f1
parent 0341d5e3d1ee2a36dd5a49b5bef2ce4ad1cfa6b4
author Russell King (Oracle) <rmk+kernel@armlinux.org.uk> 1631012206 +0800
committer David S. Miller <davem@davemloft.net> 1631019899 +0100

net: phylink: add suspend/resume support

Joakim Zhang reports that Wake-on-Lan with the stmmac ethernet driver broke
when moving the incorrect handling of mac link state out of mac_config().
This reason this breaks is because the stmmac's WoL is handled by the MAC
rather than the PHY, and phylink doesn't cater for that scenario.

This patch adds the necessary phylink code to handle suspend/resume events
according to whether the MAC still needs a valid link or not. This is the
barest minimum for this support.

Reported-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Tested-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>