include/linux/suspend.h

1 /* SPDX-License-Identifier: GPL-2.0 */
100  * struct platform_suspend_ops - Callbacks for managing platform dependent
124  *	0 on success or a negative error code otherwise, in which case the
132  *	0 on success or a negative error code otherwise, in which case the
138  *	This callback is mandatory.  It returns 0 on success or a negative
144  *	resume callbacks are executed.
149  * @finish: Finish wake-up of the platform.
160  *	suspend_again callback is the place assuming that periodic-wakeup or
161  *	alarm-wakeup is already setup. This allows to execute some codes while
205  * suspend_set_ops - set platform dependent suspend operations
238  * pm_suspend_via_firmware - Check if platform firmware will suspend the system.
240  * To be called during system-wide power management transitions to sleep states
241  * or during the subsequent system-wide transitions back to the working state.
244  * the system-wide power management transition (to a sleep state) in progress in
249  * This matters if the caller needs or wants to carry out some special actions
250  * depending on whether or not control will be passed to the platform firmware
251  * subsequently (for example, the device may need to be reset before letting the
263  * pm_resume_via_firmware - Check if platform firmware has woken up the system.
265  * To be called during system-wide power management transitions from sleep
269  * the beginning of the system-wide power management transition in progress, so
279  * pm_suspend_no_platform - Check if platform may change device power states.
281  * To be called during system-wide power management transitions to sleep states
282  * or during the subsequent system-wide transitions back to the working state.
285  * kernel throughout the system-wide suspend and resume cycle in progress (that
287  * expected to remain in that state during resume).
294 /* Suspend-to-idle state machnine. */
297 	S2IDLE_STATE_ENTER,     /* Enter suspend-to-idle. */
298 	S2IDLE_STATE_WAKE,      /* Wake up from suspend-to-idle. */
314  * arch_suspend_disable_irqs - disable IRQs for suspend
317  * code and thus allows architectures to override it if more needs to be
323  * arch_suspend_enable_irqs - enable IRQs after suspend
326  * code and thus allows architectures to override it if more needs to be
345 static inline int pm_suspend(suspend_state_t state) { return -ENOSYS; }  in pm_suspend()
354  * atomically during the resume from disk, because the page frames they have
367  * struct platform_hibernation_ops - hibernation platform support
382  *	CPUs are disabled (runs with IRQs on).
388  *	thawing devices (runs with IRQs on).
407  *	CPUs are disabled (runs with IRQs on).
411  *	thawing devices (runs with IRQs on).
466 static inline int hibernate(void) { return -ENOSYS; }  in hibernate()
471 	return -ENOTSUPP;  in hibernate_quiet_exec()
514 extern void pm_wakeup_clear(bool reset);
542 static inline void pm_wakeup_clear(bool reset) {}  in pm_wakeup_clear()  argument