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authorVineeth Vijayan <vneethv@linux.ibm.com>2020-04-02 11:35:40 +0300
committerHeiko Carstens <hca@linux.ibm.com>2020-12-02 20:19:25 +0300
commitbfa11151d223016ceca008dce7f1e55ca78c21bb (patch)
treeed1ac63fb06690f54e35129f5b69ac03906eb01d /drivers/s390
parent74cee7f3b0ea7fd6231f037ce37be6d9c6d2b4b6 (diff)
downloadlinux-bfa11151d223016ceca008dce7f1e55ca78c21bb.tar.xz
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 394216275c7d ("s390: remove broken hibernate / power management support")'. 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>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/cio/chsc_sch.c29
1 files changed, 0 insertions, 29 deletions
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 8f080d3fd380..c42405c620b5 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -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)