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| author | Vineeth Vijayan <vneethv@linux.ibm.com> | 2020-04-02 11:35:40 +0300 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2020-12-02 20:19:25 +0300 |
| commit | bfa11151d223016ceca008dce7f1e55ca78c21bb (patch) | |
| tree | ed1ac63fb06690f54e35129f5b69ac03906eb01d /drivers/s390 | |
| parent | 74cee7f3b0ea7fd6231f037ce37be6d9c6d2b4b6 (diff) | |
| download | linux-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.c | 29 |
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) |