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[S390] pm: ctcm driver power management callbacks

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Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Frank Blaschka 2009-06-16 10:30:32 +02:00 committed by Martin Schwidefsky
parent bbcfcdc832
commit b8a2d42a82
1 changed files with 36 additions and 1 deletions
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37
drivers/s390/net/ctcm_main.c
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@ -1,7 +1,7 @@
/*
* drivers/s390/net/ctcm_main.c
*
* Copyright IBM Corp. 2001, 2007
* Copyright IBM Corp. 2001, 2009
* Author(s):
* Original CTC driver(s):
* Fritz Elfert (felfert@millenux.com)
@ -1688,6 +1688,38 @@ static void ctcm_remove_device(struct ccwgroup_device *cgdev)
put_device(&cgdev->dev);
}
static int ctcm_pm_suspend(struct ccwgroup_device *gdev)
{
struct ctcm_priv *priv = dev_get_drvdata(&gdev->dev);
if (gdev->state == CCWGROUP_OFFLINE)
return 0;
netif_device_detach(priv->channel[READ]->netdev);
ctcm_close(priv->channel[READ]->netdev);
ccw_device_set_offline(gdev->cdev[1]);
ccw_device_set_offline(gdev->cdev[0]);
return 0;
}
static int ctcm_pm_resume(struct ccwgroup_device *gdev)
{
struct ctcm_priv *priv = dev_get_drvdata(&gdev->dev);
int rc;
if (gdev->state == CCWGROUP_OFFLINE)
return 0;
rc = ccw_device_set_online(gdev->cdev[1]);
if (rc)
goto err_out;
rc = ccw_device_set_online(gdev->cdev[0]);
if (rc)
goto err_out;
ctcm_open(priv->channel[READ]->netdev);
err_out:
netif_device_attach(priv->channel[READ]->netdev);
return rc;
}
static struct ccwgroup_driver ctcm_group_driver = {
.owner = THIS_MODULE,
.name = CTC_DRIVER_NAME,
@ -1697,6 +1729,9 @@ static struct ccwgroup_driver ctcm_group_driver = {
.remove = ctcm_remove_device,
.set_online = ctcm_new_device,
.set_offline = ctcm_shutdown_device,
.freeze = ctcm_pm_suspend,
.thaw = ctcm_pm_resume,
.restore = ctcm_pm_resume,
};