ACPI / PM: Report wakeup events from buttons

Since ACPI buttons and lids can be configured to wake up the system
from sleep states, report wakeup events from these devices.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 234c104fcdd8..76bbb78a5ad9 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -279,6 +279,9 @@ static int acpi_lid_send_state(struct acpi_device *device)
         input_report_switch(button->input, SW_LID, !state);
         input_sync(button->input);
 
+        if (state)
+                pm_wakeup_event(&device->dev, 0);
+
         ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, device);
         if (ret == NOTIFY_DONE)
                 ret = blocking_notifier_call_chain(&acpi_lid_notifier, state,
@@ -314,6 +317,8 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
                         input_sync(input);
                         input_report_key(input, keycode, 0);
                         input_sync(input);
+
+                        pm_wakeup_event(&device->dev, 0);
                 }
 
                 acpi_bus_generate_proc_event(device, event, ++button->pushed);