diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c
index 9efca54c51ac50c6638f0f19c41a8f3efb8ef696..10cd64e7a1eb473407a3f7e6d108da469dcc5cfa 100644
--- a/drivers/acpi/acpica/evevent.c
+++ b/drivers/acpi/acpica/evevent.c
@@ -140,9 +140,9 @@ static acpi_status acpi_ev_fixed_event_initialize(void)
 
 		if (acpi_gbl_fixed_event_info[i].enable_register_id != 0xFF) {
 			status =
-			    acpi_write_bit_register(acpi_gbl_fixed_event_info
-						    [i].enable_register_id,
-						    ACPI_DISABLE_EVENT);
+			    acpi_write_bit_register(acpi_gbl_fixed_event_info[i].enable_register_id,
+						    (i == ACPI_EVENT_PCIE_WAKE) ?
+						    ACPI_ENABLE_EVENT : ACPI_DISABLE_EVENT);
 			if (ACPI_FAILURE(status)) {
 				return (status);
 			}
@@ -185,6 +185,11 @@ u32 acpi_ev_fixed_event_detect(void)
 		return (int_status);
 	}
 
+	if (fixed_enable & ACPI_BITMASK_PCIEXP_WAKE_DISABLE)
+		fixed_enable &= ~ACPI_BITMASK_PCIEXP_WAKE_DISABLE;
+	else
+		fixed_enable |= ACPI_BITMASK_PCIEXP_WAKE_DISABLE;
+
 	ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
 			  "Fixed Event Block: Enable %08X Status %08X\n",
 			  fixed_enable, fixed_status));
@@ -248,9 +253,9 @@ static u32 acpi_ev_fixed_event_dispatch(u32 event)
 	 * and disable the event to prevent further interrupts.
 	 */
 	if (!acpi_gbl_fixed_event_handlers[event].handler) {
-		(void)acpi_write_bit_register(acpi_gbl_fixed_event_info[event].
-					      enable_register_id,
-					      ACPI_DISABLE_EVENT);
+		(void)acpi_write_bit_register(acpi_gbl_fixed_event_info[event].enable_register_id,
+					      event == ACPI_EVENT_PCIE_WAKE ?
+					      ACPI_ENABLE_EVENT : ACPI_DISABLE_EVENT);
 
 		ACPI_ERROR((AE_INFO,
 			    "No installed handler for fixed event - %s (%u), disabling",
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index 6a20bb5059c1d815a33ab83149dca348065e5a44..e89895622a72fc9251a90937adfdcbbe5d82f8d8 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -311,6 +311,18 @@ acpi_status acpi_hw_legacy_wake(u8 sleep_state)
 				    [ACPI_EVENT_SLEEP_BUTTON].
 				    status_register_id, ACPI_CLEAR_STATUS);
 
+	/* Enable pcie wake event if support */
+	if ((acpi_gbl_FADT.flags & ACPI_FADT_PCI_EXPRESS_WAKE)) {
+		(void)
+		acpi_write_bit_register(acpi_gbl_fixed_event_info
+				[ACPI_EVENT_PCIE_WAKE].
+				enable_register_id, ACPI_DISABLE_EVENT);
+		(void)
+		acpi_write_bit_register(acpi_gbl_fixed_event_info
+				[ACPI_EVENT_PCIE_WAKE].
+				status_register_id, ACPI_CLEAR_STATUS);
+	}
+
 	acpi_hw_execute_sleep_method(METHOD_PATHNAME__SST, ACPI_SST_WORKING);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index e6dcbdc3fc6ec8e3d58f19ba892ae8ab5a709545..0dc81b85112c2f21b36dd0a96a95075d8fed0883 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -186,6 +186,10 @@ struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] =
 					ACPI_BITREG_RT_CLOCK_ENABLE,
 					ACPI_BITMASK_RT_CLOCK_STATUS,
 					ACPI_BITMASK_RT_CLOCK_ENABLE},
+	/* ACPI_EVENT_PCIE_WAKE	    */ {ACPI_BITREG_PCIEXP_WAKE_STATUS,
+					ACPI_BITREG_PCIEXP_WAKE_DISABLE,
+					ACPI_BITMASK_PCIEXP_WAKE_STATUS,
+					ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
 };
 #endif				/* !ACPI_REDUCED_HARDWARE */
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 7334037624c5c3e493c21d7ce96dd1c893a38e04..3fb9aee1f716c52134d4c1857038cec1a660367b 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -720,7 +720,8 @@ typedef u32 acpi_event_type;
 #define ACPI_EVENT_POWER_BUTTON         2
 #define ACPI_EVENT_SLEEP_BUTTON         3
 #define ACPI_EVENT_RTC                  4
-#define ACPI_EVENT_MAX                  4
+#define ACPI_EVENT_PCIE_WAKE            5
+#define ACPI_EVENT_MAX                  5
 #define ACPI_NUM_FIXED_EVENTS           ACPI_EVENT_MAX + 1
 
 /*