ACPI: enable GPEs before calling _WAK on resume

It seems it's required to enable GPEs before _WAK.  E.g.  X60 triggers a
LID related GPE instead of doing a Notify in WAK.  Now the GPE reaches the
kernel and the Notify for LID status change gets thrown from there.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index 76c525dc590b3b91aedfe0c99d6526eabfe5bbc9..cf69c0040a390d407d0cd2b2da6c4e21882e22af 100644 (file)
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -576,13 +576,10 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
                ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
        }
 
-       status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL);
-       if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-               ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK"));
-       }
-       /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
-
        /*
+        * GPEs must be enabled before _WAK is called as GPEs
+        * might get fired there
+        *
         * Restore the GPEs:
         * 1) Disable/Clear all GPEs
         * 2) Enable all runtime GPEs
@@ -591,13 +588,19 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
        if (ACPI_FAILURE(status)) {
                return_ACPI_STATUS(status);
        }
-       acpi_gbl_system_awake_and_running = TRUE;
-
        status = acpi_hw_enable_all_runtime_gpes();
        if (ACPI_FAILURE(status)) {
                return_ACPI_STATUS(status);
        }
 
+       status = acpi_evaluate_object(NULL, METHOD_NAME__WAK, &arg_list, NULL);
+       if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+               ACPI_EXCEPTION((AE_INFO, status, "During Method _WAK"));
+       }
+       /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */
+
+       acpi_gbl_system_awake_and_running = TRUE;
+
        /* Enable power button */
 
        (void)