linux-kernel - [PATCH 2/3] RTC: rtc-cmos: Fix wakeup from suspend-to-idle

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Date:   Sun, 14 May 2017 01:55:32 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux PM <linux-pm@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        David Box <david.e.box@...ux.intel.com>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Alessandro Zummo <a.zummo@...ertech.it>
Subject: [PATCH 2/3] RTC: rtc-cmos: Fix wakeup from suspend-to-idle

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Commit eed4d47efe95 (ACPI / sleep: Ignore spurious SCI wakeups from
suspend-to-idle) modified the core suspend-to-idle code to filter
out spurious SCI interrupts received while suspended, which requires
ACPI event source handlers to report wakeup events in a way that
will trigger a wakeup from suspend to idle (or abort system suspends
in progress, which is equivalent).

That needs to be done in the rtc-cmos driver too, which was overlooked
by the above commit, so do that now.

Fixes: eed4d47efe95 (ACPI / sleep: Ignore spurious SCI wakeups from suspend-to-idle)
Reported-by: David E. Box <david.e.box@...ux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/rtc/rtc-cmos.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-pm/drivers/rtc/rtc-cmos.c
===================================================================
--- linux-pm.orig/drivers/rtc/rtc-cmos.c
+++ linux-pm/drivers/rtc/rtc-cmos.c
@@ -1085,7 +1085,7 @@ static u32 rtc_handler(void *context)
 	}
 	spin_unlock_irqrestore(&rtc_lock, flags);
 
-	pm_wakeup_event(dev, 0);
+	pm_wakeup_hard_event(dev);
 	acpi_clear_event(ACPI_EVENT_RTC);
 	acpi_disable_event(ACPI_EVENT_RTC, 0);
 	return ACPI_INTERRUPT_HANDLED;