103 static bool valid_state(suspend_state_t state)  in valid_state()  argument
110 	return suspend_ops && suspend_ops->valid && suspend_ops->valid(state);  in valid_state()
163 int suspend_valid_only_mem(suspend_state_t state)  in suspend_valid_only_mem()  argument
165 	return state == PM_SUSPEND_MEM;  in suspend_valid_only_mem()
169 static bool sleep_state_supported(suspend_state_t state)  in sleep_state_supported()  argument
171 	return state == PM_SUSPEND_FREEZE || (suspend_ops && suspend_ops->enter);  in sleep_state_supported()
174 static int platform_suspend_prepare(suspend_state_t state)  in platform_suspend_prepare()  argument
176 	return state != PM_SUSPEND_FREEZE && suspend_ops->prepare ?  in platform_suspend_prepare()
180 static int platform_suspend_prepare_late(suspend_state_t state)  in platform_suspend_prepare_late()  argument
182 	return state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->prepare ?  in platform_suspend_prepare_late()
186 static int platform_suspend_prepare_noirq(suspend_state_t state)  in platform_suspend_prepare_noirq()  argument
188 	return state != PM_SUSPEND_FREEZE && suspend_ops->prepare_late ?  in platform_suspend_prepare_noirq()
192 static void platform_resume_noirq(suspend_state_t state)  in platform_resume_noirq()  argument
194 	if (state != PM_SUSPEND_FREEZE && suspend_ops->wake)  in platform_resume_noirq()
198 static void platform_resume_early(suspend_state_t state)  in platform_resume_early()  argument
200 	if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->restore)  in platform_resume_early()
204 static void platform_resume_finish(suspend_state_t state)  in platform_resume_finish()  argument
206 	if (state != PM_SUSPEND_FREEZE && suspend_ops->finish)  in platform_resume_finish()
210 static int platform_suspend_begin(suspend_state_t state)  in platform_suspend_begin()  argument
212 	if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->begin)  in platform_suspend_begin()
215 		return suspend_ops->begin(state);  in platform_suspend_begin()
220 static void platform_resume_end(suspend_state_t state)  in platform_resume_end()  argument
222 	if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->end)  in platform_resume_end()
228 static void platform_recover(suspend_state_t state)  in platform_recover()  argument
230 	if (state != PM_SUSPEND_FREEZE && suspend_ops->recover)  in platform_recover()
234 static bool platform_suspend_again(suspend_state_t state)  in platform_suspend_again()  argument
236 	return state != PM_SUSPEND_FREEZE && suspend_ops->suspend_again ?  in platform_suspend_again()
267 static int suspend_prepare(suspend_state_t state)  in suspend_prepare()  argument
271 	if (!sleep_state_supported(state))  in suspend_prepare()
313 static int suspend_enter(suspend_state_t state, bool *wakeup)  in suspend_enter()  argument
317 	error = platform_suspend_prepare(state);  in suspend_enter()
326 	error = platform_suspend_prepare_late(state);  in suspend_enter()
335 	error = platform_suspend_prepare_noirq(state);  in suspend_enter()
348 	if (state == PM_SUSPEND_FREEZE) {  in suspend_enter()
349 		trace_suspend_resume(TPS("machine_suspend"), state, true);  in suspend_enter()
351 		trace_suspend_resume(TPS("machine_suspend"), state, false);  in suspend_enter()
367 				state, true);  in suspend_enter()
368 			error = suspend_ops->enter(state);  in suspend_enter()
370 				state, false);  in suspend_enter()
385 	platform_resume_noirq(state);  in suspend_enter()
389 	platform_resume_early(state);  in suspend_enter()
395 	platform_resume_finish(state);  in suspend_enter()
403 int suspend_devices_and_enter(suspend_state_t state)  in suspend_devices_and_enter()  argument
408 	if (!sleep_state_supported(state))  in suspend_devices_and_enter()
411 	error = platform_suspend_begin(state);  in suspend_devices_and_enter()
427 		error = suspend_enter(state, &wakeup);  in suspend_devices_and_enter()
428 	} while (!error && !wakeup && platform_suspend_again(state));  in suspend_devices_and_enter()
434 	trace_suspend_resume(TPS("resume_console"), state, true);  in suspend_devices_and_enter()
436 	trace_suspend_resume(TPS("resume_console"), state, false);  in suspend_devices_and_enter()
439 	platform_resume_end(state);  in suspend_devices_and_enter()
443 	platform_recover(state);  in suspend_devices_and_enter()
468 static int enter_state(suspend_state_t state)  in enter_state()  argument
472 	trace_suspend_resume(TPS("suspend_enter"), state, true);  in enter_state()
473 	if (state == PM_SUSPEND_FREEZE) {  in enter_state()
481 	} else if (!valid_state(state)) {  in enter_state()
487 	if (state == PM_SUSPEND_FREEZE)  in enter_state()
498 	pr_debug("PM: Preparing system for sleep (%s)\n", pm_states[state]);  in enter_state()
500 	error = suspend_prepare(state);  in enter_state()
507 	trace_suspend_resume(TPS("suspend_enter"), state, false);  in enter_state()
508 	pr_debug("PM: Suspending system (%s)\n", pm_states[state]);  in enter_state()
510 	error = suspend_devices_and_enter(state);  in enter_state()
528 int pm_suspend(suspend_state_t state)  in pm_suspend()  argument
532 	if (state <= PM_SUSPEND_ON || state >= PM_SUSPEND_MAX)  in pm_suspend()
535 	error = enter_state(state);  in pm_suspend()