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Commit b8a2d42a authored by Frank Blaschka's avatar Frank Blaschka Committed by Martin Schwidefsky
Browse files

[S390] pm: ctcm driver power management callbacks 



Signed-off-by: default avatarFrank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent bbcfcdc8

drivers/s390/net/ctcm_main.c

+36 −1
Original line number Diff line number Diff line 
/*

 * 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,

};