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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: Daniel Drake <dsd@laptop.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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c10d7a1384
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b2201e5482
1 changed files with 6 additions and 3 deletions
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@ -910,14 +910,17 @@ static inline int cmos_poweroff(struct device *dev)
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static u32 rtc_handler(void *context)
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{
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struct device *dev = context;
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pm_wakeup_event(dev, 0);
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acpi_clear_event(ACPI_EVENT_RTC);
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acpi_disable_event(ACPI_EVENT_RTC, 0);
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return ACPI_INTERRUPT_HANDLED;
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}
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static inline void rtc_wake_setup(void)
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static inline void rtc_wake_setup(struct device *dev)
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{
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acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL);
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acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, dev);
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/*
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* After the RTC handler is installed, the Fixed_RTC event should
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* be disabled. Only when the RTC alarm is set will it be enabled.
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@ -950,7 +953,7 @@ cmos_wake_setup(struct device *dev)
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if (acpi_disabled)
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return;
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rtc_wake_setup();
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rtc_wake_setup(dev);
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acpi_rtc_info.wake_on = rtc_wake_on;
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acpi_rtc_info.wake_off = rtc_wake_off;
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