1 files changed, 42 insertions, 0 deletions

diff --git a/drivers/acpi/events/evevent.c b/drivers/acpi/events/evevent.c
index 842d1e3fb37b..9522c643b88b 100644
--- a/drivers/acpi/events/evevent.c
+++ b/drivers/acpi/events/evevent.c
@@ -100,6 +100,48 @@ acpi_status acpi_ev_initialize_events(void)
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ev_install_fadt_gpes
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Completes initialization of the FADT-defined GPE blocks
+ *              (0 and 1). This causes the _PRW methods to be run, so the HW
+ *              must be fully initialized at this point, including global lock
+ *              support.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_install_fadt_gpes(void)
+{
+        acpi_status status;
+
+        ACPI_FUNCTION_TRACE("ev_install_fadt_gpes");
+
+        /* Namespace must be locked */
+
+        status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+        if (ACPI_FAILURE(status)) {
+                return (status);
+        }
+
+        /* FADT GPE Block 0 */
+
+        (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device,
+                                           acpi_gbl_gpe_fadt_blocks[0]);
+
+        /* FADT GPE Block 1 */
+
+        (void)acpi_ev_initialize_gpe_block(acpi_gbl_fadt_gpe_device,
+                                           acpi_gbl_gpe_fadt_blocks[1]);
+
+        (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+        return_ACPI_STATUS(AE_OK);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ev_install_xrupt_handlers
  *
  * PARAMETERS:  None