s390/cio: remove pm support from IO subchannel drivers
The power-management functions are unused since the
'commit 394216275c7d ("s390: remove broken hibernate / power
management support")'. Remove these unused pm callbacks from
io-subchannel drivers.
Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index b29fe8d..9b8ebb2 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -149,19 +149,6 @@ static struct css_device_id io_subchannel_ids[] = {
{ /* end of list */ },
};
-static int io_subchannel_prepare(struct subchannel *sch)
-{
- struct ccw_device *cdev;
- /*
- * Don't allow suspend while a ccw device registration
- * is still outstanding.
- */
- cdev = sch_get_cdev(sch);
- if (cdev && !device_is_registered(&cdev->dev))
- return -EAGAIN;
- return 0;
-}
-
static int io_subchannel_settle(void)
{
int ret;
@@ -186,7 +173,6 @@ static struct css_driver io_subchannel_driver = {
.probe = io_subchannel_probe,
.remove = io_subchannel_remove,
.shutdown = io_subchannel_shutdown,
- .prepare = io_subchannel_prepare,
.settle = io_subchannel_settle,
};