Commit 5e1fb45e authored by Julian Wiedmann's avatar Julian Wiedmann Committed by Vasily Gorbik
Browse files

s390/ccwgroup: remove pm support 



As s390 no longer supports ARCH_HIBERNATION_POSSIBLE, drop the unused
pm ops from the ccwgroup bus driver.

Signed-off-by: default avatarJulian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
parent 41677b1d

drivers/s390/cio/ccwgroup.c

+0 −69
Original line number Diff line number Diff line
@@ -485,79 +485,10 @@ static void ccwgroup_shutdown(struct device *dev) 
		gdrv->shutdown(gdev);

}



static int ccwgroup_pm_prepare(struct device *dev)

{

	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);

	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);



	/* Fail while device is being set online/offline. */

	if (atomic_read(&gdev->onoff))

		return -EAGAIN;



	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)

		return 0;



	return gdrv->prepare ? gdrv->prepare(gdev) : 0;

}



static void ccwgroup_pm_complete(struct device *dev)

{

	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);

	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(dev->driver);



	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)

		return;



	if (gdrv->complete)

		gdrv->complete(gdev);

}



static int ccwgroup_pm_freeze(struct device *dev)

{

	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);

	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);



	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)

		return 0;



	return gdrv->freeze ? gdrv->freeze(gdev) : 0;

}



static int ccwgroup_pm_thaw(struct device *dev)

{

	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);

	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);



	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)

		return 0;



	return gdrv->thaw ? gdrv->thaw(gdev) : 0;

}



static int ccwgroup_pm_restore(struct device *dev)

{

	struct ccwgroup_device *gdev = to_ccwgroupdev(dev);

	struct ccwgroup_driver *gdrv = to_ccwgroupdrv(gdev->dev.driver);



	if (!gdev->dev.driver || gdev->state != CCWGROUP_ONLINE)

		return 0;



	return gdrv->restore ? gdrv->restore(gdev) : 0;

}



static const struct dev_pm_ops ccwgroup_pm_ops = {

	.prepare = ccwgroup_pm_prepare,

	.complete = ccwgroup_pm_complete,

	.freeze = ccwgroup_pm_freeze,

	.thaw = ccwgroup_pm_thaw,

	.restore = ccwgroup_pm_restore,

};



static struct bus_type ccwgroup_bus_type = {

	.name   = "ccwgroup",

	.remove = ccwgroup_remove,

	.shutdown = ccwgroup_shutdown,

	.pm = &ccwgroup_pm_ops,

};



bool dev_is_ccwgroup(struct device *dev)