diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index ac428405e318b..9428f94fb4dfa 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -996,33 +996,37 @@ static void acpi_s2idle_wake(void)
 		lpi_check_constraints();
 
 	/*
-	 * If IRQD_WAKEUP_ARMED is not set for the SCI at this point, it means
-	 * that the SCI has triggered while suspended, so cancel the wakeup in
-	 * case it has not been a wakeup event (the GPEs will be checked later).
+	 * If IRQD_WAKEUP_ARMED is set for the SCI at this point, the SCI has
+	 * not triggered while suspended, so bail out.
 	 */
-	if (acpi_sci_irq_valid() &&
-	    !irqd_is_wakeup_armed(irq_get_irq_data(acpi_sci_irq))) {
+	if (!acpi_sci_irq_valid() ||
+	    irqd_is_wakeup_armed(irq_get_irq_data(acpi_sci_irq)))
+		return;
+
+	/*
+	 * If there are EC events to process, the wakeup may be a spurious one
+	 * coming from the EC.
+	 */
+	if (acpi_ec_dispatch_gpe()) {
+		/*
+		 * Cancel the wakeup and process all pending events in case
+		 * there are any wakeup ones in there.
+		 *
+		 * Note that if any non-EC GPEs are active at this point, the
+		 * SCI will retrigger after the rearming below, so no events
+		 * should be missed by canceling the wakeup here.
+		 */
 		pm_system_cancel_wakeup();
 		/*
-		 * On some platforms with the LPS0 _DSM device noirq resume
-		 * takes too much time for EC wakeup events to survive, so look
-		 * for them now.
+		 * The EC driver uses the system workqueue and an additional
+		 * special one, so those need to be flushed too.
 		 */
-		acpi_ec_dispatch_gpe();
+		acpi_os_wait_events_complete(); /* synchronize EC GPE processing */
+		acpi_ec_flush_work();
+		acpi_os_wait_events_complete(); /* synchronize Notify handling */
 	}
-}
 
-static void acpi_s2idle_sync(void)
-{
-	/*
-	 * Process all pending events in case there are any wakeup ones.
-	 *
-	 * The EC driver uses the system workqueue and an additional special
-	 * one, so those need to be flushed too.
-	 */
-	acpi_os_wait_events_complete();	/* synchronize SCI IRQ handling */
-	acpi_ec_flush_work();
-	acpi_os_wait_events_complete();	/* synchronize Notify handling */
+	rearm_wake_irq(acpi_sci_irq);
 }
 
 static void acpi_s2idle_restore(void)
@@ -1054,7 +1058,6 @@ static const struct platform_s2idle_ops acpi_s2idle_ops = {
 	.begin = acpi_s2idle_begin,
 	.prepare = acpi_s2idle_prepare,
 	.wake = acpi_s2idle_wake,
-	.sync = acpi_s2idle_sync,
 	.restore = acpi_s2idle_restore,
 	.end = acpi_s2idle_end,
 };
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 7900debc5ce44..ca3c8700c1f96 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1299,11 +1299,6 @@ static int __device_suspend_noirq(struct device *dev, pm_message_t state, bool a
 	if (async_error)
 		goto Complete;
 
-	if (pm_wakeup_pending()) {
-		async_error = -EBUSY;
-		goto Complete;
-	}
-
 	if (dev->power.syscore || dev->power.direct_complete)
 		goto Complete;
 
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index 50e81bff37df5..7d0dfb1ea34e6 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -191,7 +191,6 @@ struct platform_s2idle_ops {
 	int (*begin)(void);
 	int (*prepare)(void);
 	void (*wake)(void);
-	void (*sync)(void);
 	void (*restore)(void);
 	void (*end)(void);
 };
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 07a32e99aa644..09ac6da691ae2 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -115,48 +115,41 @@ static void s2idle_enter(void)
 
 static void s2idle_loop(void)
 {
+	int error;
+
+	dpm_noirq_begin();
+	error = dpm_noirq_suspend_devices(PMSG_SUSPEND);
+	if (error)
+		goto resume;
+
 	pm_pr_dbg("suspend-to-idle\n");
 
+	/*
+	 * Suspend-to-idle equals:
+	 * frozen processes + suspended devices + idle processors.
+	 * Thus s2idle_enter() should be called right after all devices have
+	 * been suspended.
+	 *
+	 * Wakeups during the noirq suspend of devices may be spurious, so try
+	 * to avoid them upfront.
+	 */
 	for (;;) {
-		int error;
-
-		dpm_noirq_begin();
-
-		/*
-		 * Suspend-to-idle equals
-		 * frozen processes + suspended devices + idle processors.
-		 * Thus s2idle_enter() should be called right after
-		 * all devices have been suspended.
-		 *
-		 * Wakeups during the noirq suspend of devices may be spurious,
-		 * so prevent them from terminating the loop right away.
-		 */
-		error = dpm_noirq_suspend_devices(PMSG_SUSPEND);
-		if (!error)
-			s2idle_enter();
-		else if (error == -EBUSY && pm_wakeup_pending())
-			error = 0;
-
-		if (!error && s2idle_ops && s2idle_ops->wake)
+		if (s2idle_ops && s2idle_ops->wake)
 			s2idle_ops->wake();
 
-		dpm_noirq_resume_devices(PMSG_RESUME);
-
-		dpm_noirq_end();
-
-		if (error)
-			break;
-
-		if (s2idle_ops && s2idle_ops->sync)
-			s2idle_ops->sync();
-
 		if (pm_wakeup_pending())
 			break;
 
 		pm_wakeup_clear(false);
+
+		s2idle_enter();
 	}
 
 	pm_pr_dbg("resume from suspend-to-idle\n");
+
+resume:
+	dpm_noirq_resume_devices(PMSG_RESUME);
+	dpm_noirq_end();
 }
 
 void s2idle_wake(void)
