diff options
Diffstat (limited to 'include/linux/pm.h')
| -rw-r--r-- | include/linux/pm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/pm.h b/include/linux/pm.h index c2a55f94c29a..6035209cf31e 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -128,6 +128,9 @@ typedef int __bitwise suspend_disk_method_t; * always valid and never passed to this call. * If not assigned, all suspend states are advertised as valid * in /sys/power/state (but can still be rejected by prepare or enter.) + * Since new states can be added for other platforms, you should + * assign this callback. There is a %pm_valid_only_mem function + * available if you only implemented mem sleep. * * @prepare: Prepare the platform for the given suspend state. Can return a * negative error code if necessary. @@ -165,6 +168,7 @@ extern void pm_set_ops(struct pm_ops *pm_ops); extern struct pm_ops *pm_ops; extern int pm_suspend(suspend_state_t state); +extern int pm_valid_only_mem(suspend_state_t state); /** * arch_suspend_disable_irqs - disable IRQs for suspend |