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Subject[PATCH 191/222] ACPI : do not use Lid and Sleep button for S5 wakeup
Date
3.5.7.3 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Zhang Rui <rui.zhang@intel.com>

commit b7e383046c2c7c13ad928cd7407eafff758ddd4b upstream.

When system enters power off, the _PSW of Lid device is enabled.
But this may cause the system to reboot instead of power off.

A proper way to fix this is to always disable lid wakeup capability for S5.

References: https://bugzilla.kernel.org/show_bug.cgi?id=35262
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
---
drivers/acpi/scan.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c8a1f3b..803c4ec 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -789,8 +789,8 @@ acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
{
struct acpi_device_id button_device_ids[] = {
- {"PNP0C0D", 0},
{"PNP0C0C", 0},
+ {"PNP0C0D", 0},
{"PNP0C0E", 0},
{"", 0},
};
@@ -802,6 +802,11 @@ static void acpi_bus_set_run_wake_flags(struct acpi_device *device)
/* Power button, Lid switch always enable wakeup */
if (!acpi_match_device_ids(device, button_device_ids)) {
device->wakeup.flags.run_wake = 1;
+ if (!acpi_match_device_ids(device, &button_device_ids[1])) {
+ /* Do not use Lid/sleep button for S5 wakeup */
+ if (device->wakeup.sleep_state == ACPI_STATE_S5)
+ device->wakeup.sleep_state = ACPI_STATE_S4;
+ }
device_set_wakeup_capable(&device->dev, true);
return;
}
--
1.7.9.5


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