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s390/cio: remove pm support from IO subchannel drivers 

The power-management functions are unused since the
'commit 394216275c ("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>
This commit is contained in:
Vineeth Vijayan 2020-04-02 10:34:02 +02:00 committed by Heiko Carstens
parent bfa11151d2
commit 796cfabde5
1 changed files with 0 additions and 14 deletions
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14
drivers/s390/cio/device.c
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@ -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,
};