hi, on s390 certain hw features which we normally enable in our init calls, get reset while restoring the hibernation image. so we need a trigger to reenable them before the device callbacks are called. is it possible to add an additional event for the existing pm_notifier (something like the attached patch)? regards sebastian Signed-off-by: Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx> --- include/linux/notifier.h | 1 + kernel/power/hibernate.c | 2 ++ 2 files changed, 3 insertions(+) Index: linux-2.6/include/linux/notifier.h =================================================================== --- linux-2.6.orig/include/linux/notifier.h +++ linux-2.6/include/linux/notifier.h @@ -250,6 +250,8 @@ static inline int notifier_to_errno(int #define PM_POST_SUSPEND 0x0004 /* Suspend finished */ #define PM_RESTORE_PREPARE 0x0005 /* Going to restore a saved image */ #define PM_POST_RESTORE 0x0006 /* Restore failed */ +#define PM_RESTORE_FINISHED 0x0007 /* Image restored, called prior to + device callbacks */ /* Console keyboard events. * Note: KBD_KEYCODE is always sent before KBD_UNBOUND_KEYCODE, KBD_UNICODE and Index: linux-2.6/kernel/power/hibernate.c =================================================================== --- linux-2.6.orig/kernel/power/hibernate.c +++ linux-2.6/kernel/power/hibernate.c @@ -290,6 +290,8 @@ static int create_image(int platform_mod if (!in_suspend) platform_leave(platform_mode); + pm_notifier_call_chain(PM_RESTORE_FINISHED); + Power_up: sysdev_resume(); /* NOTE: dpm_resume_noirq() is just a resume() for devices _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
