Commit bfa11151 authored by Vineeth Vijayan's avatar Vineeth Vijayan Committed by Heiko Carstens
Browse files

s390/cio: remove pm support from chsc subchannel driver 



As part of removing the broken pm-support from s390 arch, remove
the pm-calls from chsc subchannel driver. The power-management
functions are unused since the 'commit 39421627 ("s390: remove
broken hibernate / power management support")'.

Signed-off-by: default avatarVineeth Vijayan <vneethv@linux.ibm.com>
Reviewed-by: default avatarPeter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 74cee7f3

drivers/s390/cio/chsc_sch.c

+0 −29
Original line number Diff line number Diff line
@@ -120,31 +120,6 @@ static void chsc_subchannel_shutdown(struct subchannel *sch) 
	cio_disable_subchannel(sch);

}



static int chsc_subchannel_prepare(struct subchannel *sch)

{

	int cc;

	struct schib schib;

	/*

	 * Don't allow suspend while the subchannel is not idle

	 * since we don't have a way to clear the subchannel and

	 * cannot disable it with a request running.

	 */

	cc = stsch(sch->schid, &schib);

	if (!cc && scsw_stctl(&schib.scsw))

		return -EAGAIN;

	return 0;

}



static int chsc_subchannel_freeze(struct subchannel *sch)

{

	return cio_disable_subchannel(sch);

}



static int chsc_subchannel_restore(struct subchannel *sch)

{

	return cio_enable_subchannel(sch, (u32)(unsigned long)sch);

}



static struct css_device_id chsc_subchannel_ids[] = {

	{ .match_flags = 0x1, .type =SUBCHANNEL_TYPE_CHSC, },

	{ /* end of list */ },
@@ -161,10 +136,6 @@ static struct css_driver chsc_subchannel_driver = { 
	.probe = chsc_subchannel_probe,

	.remove = chsc_subchannel_remove,

	.shutdown = chsc_subchannel_shutdown,

	.prepare = chsc_subchannel_prepare,

	.freeze = chsc_subchannel_freeze,

	.thaw = chsc_subchannel_restore,

	.restore = chsc_subchannel_restore,

};



static int __init chsc_init_dbfs(void)