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Commit b2201e54 authored by Daniel Drake's avatar Daniel Drake Committed by Rafael J. Wysocki
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rtc-cmos / PM: report wakeup event on ACPI RTC alarm 



When the ACPI-driven RTC alarm wakes the system, report it as a wakeup
event. This allows userspace to determine that the reason for system
wakeup was RTC alarm.

Signed-off-by: default avatarDaniel Drake <dsd@laptop.org>
Signed-off-by: default avatarRafael J. Wysocki <rjw@sisk.pl>
parent c10d7a13

drivers/rtc/rtc-cmos.c

+6 −3
Original line number Diff line number Diff line
@@ -910,14 +910,17 @@ static inline int cmos_poweroff(struct device *dev) 


static u32 rtc_handler(void *context)

{

	struct device *dev = context;



	pm_wakeup_event(dev, 0);

	acpi_clear_event(ACPI_EVENT_RTC);

	acpi_disable_event(ACPI_EVENT_RTC, 0);

	return ACPI_INTERRUPT_HANDLED;

}



static inline void rtc_wake_setup(void)

static inline void rtc_wake_setup(struct device *dev)

{

	acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL);

	acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, dev);

	/*

	 * After the RTC handler is installed, the Fixed_RTC event should

	 * be disabled. Only when the RTC alarm is set will it be enabled.
@@ -950,7 +953,7 @@ cmos_wake_setup(struct device *dev) 
	if (acpi_disabled)

		return;



	rtc_wake_setup();

	rtc_wake_setup(dev);

	acpi_rtc_info.wake_on = rtc_wake_on;

	acpi_rtc_info.wake_off = rtc_wake_off;