pm_notify
fw_cache.pm_notify.notifier_call = fw_pm_notify;
ret = register_pm_notifier(&fw_cache.pm_notify);
unregister_pm_notifier(&fw_cache.pm_notify);
struct notifier_block pm_notify;
wil->pm_notify.notifier_call = wil6210_pm_notify;
rc = register_pm_notifier(&wil->pm_notify);
unregister_pm_notifier(&wil->pm_notify);
notify_block, struct wil6210_priv, pm_notify);
struct notifier_block pm_notify;
.notifier_call = pm_notify,