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authorFrank Blaschka <frank.blaschka@de.ibm.com>2009-06-16 10:30:32 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-06-16 10:31:13 +0200
commitb8a2d42a8276d4dbc5a5c99f4422132c43ce3e1d (patch)
tree181dcd7339656a6da2dd0eecf8b4bd1bc23b5f71 /drivers/s390
parentbbcfcdc8324e75532c4d2592a545a91fcb45f229 (diff)
downloadlinux-b8a2d42a8276d4dbc5a5c99f4422132c43ce3e1d.tar.bz2
[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>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/net/ctcm_main.c37
1 files changed, 36 insertions, 1 deletions
diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c
index 54c4649a493b..222e47394437 100644
--- a/drivers/s390/net/ctcm_main.c
+++ b/drivers/s390/net/ctcm_main.c
@@ -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,
};