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-rw-r--r--drivers/acpi/acpica/evevent.c11
-rw-r--r--drivers/acpi/acpica/hwsleep.c14
-rw-r--r--drivers/acpi/acpica/utglobal.c4
-rw-r--r--include/acpi/actypes.h3
4 files changed, 31 insertions, 1 deletions
diff --git a/drivers/acpi/acpica/evevent.c b/drivers/acpi/acpica/evevent.c
index df596d46dd97..82d1728b9bc6 100644
--- a/drivers/acpi/acpica/evevent.c
+++ b/drivers/acpi/acpica/evevent.c
@@ -142,6 +142,9 @@ static acpi_status acpi_ev_fixed_event_initialize(void)
status =
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 +188,11 @@ 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));
@@ -250,6 +258,9 @@ static u32 acpi_ev_fixed_event_dispatch(u32 event)
if (!acpi_gbl_fixed_event_handlers[event].handler) {
(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,
diff --git a/drivers/acpi/acpica/hwsleep.c b/drivers/acpi/acpica/hwsleep.c
index bd936476dda9..37b3f641feaa 100644
--- a/drivers/acpi/acpica/hwsleep.c
+++ b/drivers/acpi/acpica/hwsleep.c
@@ -311,6 +311,20 @@ 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 cda6e16dddf7..53afa5edb6ec 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 3491e454b2ab..ed725335741e 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -723,7 +723,8 @@ 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
/*