100 static bool valid_state(suspend_state_t state)  in valid_state()  argument
107 	return suspend_ops && suspend_ops->valid && suspend_ops->valid(state);  in valid_state()
160 int suspend_valid_only_mem(suspend_state_t state)  in suspend_valid_only_mem()  argument
162 	return state == PM_SUSPEND_MEM;  in suspend_valid_only_mem()
166 static bool sleep_state_supported(suspend_state_t state)  in sleep_state_supported()  argument
168 	return state == PM_SUSPEND_FREEZE || (suspend_ops && suspend_ops->enter);  in sleep_state_supported()
171 static int platform_suspend_prepare(suspend_state_t state)  in platform_suspend_prepare()  argument
173 	return state != PM_SUSPEND_FREEZE && suspend_ops->prepare ?  in platform_suspend_prepare()
177 static int platform_suspend_prepare_late(suspend_state_t state)  in platform_suspend_prepare_late()  argument
179 	return state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->prepare ?  in platform_suspend_prepare_late()
183 static int platform_suspend_prepare_noirq(suspend_state_t state)  in platform_suspend_prepare_noirq()  argument
185 	return state != PM_SUSPEND_FREEZE && suspend_ops->prepare_late ?  in platform_suspend_prepare_noirq()
189 static void platform_resume_noirq(suspend_state_t state)  in platform_resume_noirq()  argument
191 	if (state != PM_SUSPEND_FREEZE && suspend_ops->wake)  in platform_resume_noirq()
195 static void platform_resume_early(suspend_state_t state)  in platform_resume_early()  argument
197 	if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->restore)  in platform_resume_early()
201 static void platform_resume_finish(suspend_state_t state)  in platform_resume_finish()  argument
203 	if (state != PM_SUSPEND_FREEZE && suspend_ops->finish)  in platform_resume_finish()
207 static int platform_suspend_begin(suspend_state_t state)  in platform_suspend_begin()  argument
209 	if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->begin)  in platform_suspend_begin()
212 		return suspend_ops->begin(state);  in platform_suspend_begin()
217 static void platform_resume_end(suspend_state_t state)  in platform_resume_end()  argument
219 	if (state == PM_SUSPEND_FREEZE && freeze_ops && freeze_ops->end)  in platform_resume_end()
225 static void platform_recover(suspend_state_t state)  in platform_recover()  argument
227 	if (state != PM_SUSPEND_FREEZE && suspend_ops->recover)  in platform_recover()
231 static bool platform_suspend_again(suspend_state_t state)  in platform_suspend_again()  argument
233 	return state != PM_SUSPEND_FREEZE && suspend_ops->suspend_again ?  in platform_suspend_again()
264 static int suspend_prepare(suspend_state_t state)  in suspend_prepare()  argument
268 	if (!sleep_state_supported(state))  in suspend_prepare()
310 static int suspend_enter(suspend_state_t state, bool *wakeup)  in suspend_enter()  argument
314 	error = platform_suspend_prepare(state);  in suspend_enter()
323 	error = platform_suspend_prepare_late(state);  in suspend_enter()
332 	error = platform_suspend_prepare_noirq(state);  in suspend_enter()
345 	if (state == PM_SUSPEND_FREEZE) {  in suspend_enter()
346 		trace_suspend_resume(TPS("machine_suspend"), state, true);  in suspend_enter()
348 		trace_suspend_resume(TPS("machine_suspend"), state, false);  in suspend_enter()
364 				state, true);  in suspend_enter()
365 			error = suspend_ops->enter(state);  in suspend_enter()
367 				state, false);  in suspend_enter()
380 	platform_resume_noirq(state);  in suspend_enter()
384 	platform_resume_early(state);  in suspend_enter()
390 	platform_resume_finish(state);  in suspend_enter()
398 int suspend_devices_and_enter(suspend_state_t state)  in suspend_devices_and_enter()  argument
403 	if (!sleep_state_supported(state))  in suspend_devices_and_enter()
406 	error = platform_suspend_begin(state);  in suspend_devices_and_enter()
422 		error = suspend_enter(state, &wakeup);  in suspend_devices_and_enter()
423 	} while (!error && !wakeup && platform_suspend_again(state));  in suspend_devices_and_enter()
429 	trace_suspend_resume(TPS("resume_console"), state, true);  in suspend_devices_and_enter()
431 	trace_suspend_resume(TPS("resume_console"), state, false);  in suspend_devices_and_enter()
434 	platform_resume_end(state);  in suspend_devices_and_enter()
438 	platform_recover(state);  in suspend_devices_and_enter()
463 static int enter_state(suspend_state_t state)  in enter_state()  argument
467 	trace_suspend_resume(TPS("suspend_enter"), state, true);  in enter_state()
468 	if (state == PM_SUSPEND_FREEZE) {  in enter_state()
476 	} else if (!valid_state(state)) {  in enter_state()
482 	if (state == PM_SUSPEND_FREEZE)  in enter_state()
491 	pr_debug("PM: Preparing system for %s sleep\n", pm_states[state]);  in enter_state()
492 	error = suspend_prepare(state);  in enter_state()
499 	trace_suspend_resume(TPS("suspend_enter"), state, false);  in enter_state()
500 	pr_debug("PM: Entering %s sleep\n", pm_states[state]);  in enter_state()
502 	error = suspend_devices_and_enter(state);  in enter_state()
520 int pm_suspend(suspend_state_t state)  in pm_suspend()  argument
524 	if (state <= PM_SUSPEND_ON || state >= PM_SUSPEND_MAX)  in pm_suspend()
527 	error = enter_state(state);  in pm_suspend()