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Commit e3fe8558 authored by Eric Bénard's avatar Eric Bénard Committed by David S. Miller
Browse files

net/fec: fix pm to survive to suspend/resume 



* in the actual driver, calling fec_stop and fec_enet_init doesn't
allow to have a working network interface at resume (where a
ifconfig down and up is required to recover the interface)
* by using fec_enet_close and fec_enet_open, this patch solves this
problem and handle the case where the link changed between suspend
and resume
* this patch also disable clock at suspend and reenable it at resume

Signed-off-by: default avatarEric Bénard <eric@eukrea.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b1011b37

drivers/net/fec.c

+8 −8
Original line number Diff line number Diff line
@@ -1373,10 +1373,9 @@ fec_suspend(struct platform_device *dev, pm_message_t state) 


	if (ndev) {

		fep = netdev_priv(ndev);

		if (netif_running(ndev)) {

			netif_device_detach(ndev);

			fec_stop(ndev);

		}

		if (netif_running(ndev))

			fec_enet_close(ndev);

		clk_disable(fep->clk);

	}

	return 0;

}
@@ -1385,12 +1384,13 @@ static int 
fec_resume(struct platform_device *dev)

{

	struct net_device *ndev = platform_get_drvdata(dev);

	struct fec_enet_private *fep;



	if (ndev) {

		if (netif_running(ndev)) {

			fec_enet_init(ndev, 0);

			netif_device_attach(ndev);

		}

		fep = netdev_priv(ndev);

		clk_enable(fep->clk);

		if (netif_running(ndev))

			fec_enet_open(ndev);

	}

	return 0;

}