Currently ACPI LID increments wakeup count irrespective of the wake source.
This is because we call acpi_lid_initialize_state on every resume.
Userland deamons using wakeup_count to identify the potential wake
source for the last wake will be thrown off by this. Instead increment
the wakeup count only when there is a FIXED_HARDWARE/NOTFIY_STATUS event.
Signed-off-by: Ravi Chandra Sadineni <ravisadineni@xxxxxxxxxxxx>
---
V2: Increment the wakeup count only when the lid is open.
drivers/acpi/button.c | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 2345a5ee2dbbc..d2fe03e4faf05 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -235,9 +235,6 @@ static int acpi_lid_notify_state(struct acpi_device *device, int state)
button->last_time = ktime_get();
}
- if (state)
- acpi_pm_wakeup_event(&device->dev);
-
ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, device);
if (ret == NOTIFY_DONE)
ret = blocking_notifier_call_chain(&acpi_lid_notifier, state,
@@ -366,7 +363,8 @@ int acpi_lid_open(void)
}
EXPORT_SYMBOL(acpi_lid_open);
-static int acpi_lid_update_state(struct acpi_device *device)
+static int acpi_lid_update_state(struct acpi_device *device,
+ bool is_notification)
{
int state;
@@ -374,6 +372,9 @@ static int acpi_lid_update_state(struct acpi_device *device)
if (state < 0)
return state;
+ if (state && is_notification)
+ acpi_pm_wakeup_event(&device->dev);
+
return acpi_lid_notify_state(device, state);
}
@@ -384,7 +385,7 @@ static void acpi_lid_initialize_state(struct acpi_device *device)
(void)acpi_lid_notify_state(device, 1);
break;
case ACPI_BUTTON_LID_INIT_METHOD:
- (void)acpi_lid_update_state(device);
+ (void)acpi_lid_update_state(device, false);
break;
case ACPI_BUTTON_LID_INIT_IGNORE:
default:
@@ -409,7 +410,7 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
users = button->input->users;
mutex_unlock(&button->input->mutex);
if (users)
- acpi_lid_update_state(device);
+ acpi_lid_update_state(device, true);
} else {
int keycode;
--
2.18.0.rc1.242.g61856ae69a-goog
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