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[S390] pm: ctcm driver power management callbacks
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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1 changed files with 36 additions and 1 deletions
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@ -1,7 +1,7 @@
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/*
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* drivers/s390/net/ctcm_main.c
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*
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* Copyright IBM Corp. 2001, 2007
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* Copyright IBM Corp. 2001, 2009
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* Author(s):
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* Original CTC driver(s):
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* Fritz Elfert (felfert@millenux.com)
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@ -1688,6 +1688,38 @@ static void ctcm_remove_device(struct ccwgroup_device *cgdev)
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put_device(&cgdev->dev);
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}
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static int ctcm_pm_suspend(struct ccwgroup_device *gdev)
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{
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struct ctcm_priv *priv = dev_get_drvdata(&gdev->dev);
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if (gdev->state == CCWGROUP_OFFLINE)
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return 0;
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netif_device_detach(priv->channel[READ]->netdev);
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ctcm_close(priv->channel[READ]->netdev);
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ccw_device_set_offline(gdev->cdev[1]);
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ccw_device_set_offline(gdev->cdev[0]);
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return 0;
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}
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static int ctcm_pm_resume(struct ccwgroup_device *gdev)
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{
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struct ctcm_priv *priv = dev_get_drvdata(&gdev->dev);
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int rc;
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if (gdev->state == CCWGROUP_OFFLINE)
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return 0;
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rc = ccw_device_set_online(gdev->cdev[1]);
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if (rc)
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goto err_out;
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rc = ccw_device_set_online(gdev->cdev[0]);
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if (rc)
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goto err_out;
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ctcm_open(priv->channel[READ]->netdev);
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err_out:
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netif_device_attach(priv->channel[READ]->netdev);
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return rc;
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}
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static struct ccwgroup_driver ctcm_group_driver = {
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.owner = THIS_MODULE,
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.name = CTC_DRIVER_NAME,
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@ -1697,6 +1729,9 @@ static struct ccwgroup_driver ctcm_group_driver = {
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.remove = ctcm_remove_device,
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.set_online = ctcm_new_device,
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.set_offline = ctcm_shutdown_device,
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.freeze = ctcm_pm_suspend,
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.thaw = ctcm_pm_resume,
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.restore = ctcm_pm_resume,
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};
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