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path: root/drivers/acpi/events/evevent.c
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Diffstat (limited to 'drivers/acpi/events/evevent.c')
-rw-r--r--drivers/acpi/events/evevent.c42
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/acpi/events/evevent.c b/drivers/acpi/events/evevent.c
index 842d1e3fb37..9522c643b88 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