1 files changed, 32 insertions, 34 deletions

diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index 85445fb5844e..ca2c41a53311 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -5,7 +5,7 @@
  *****************************************************************************/
 
 /*
- * Copyright (C) 2000 - 2010, Intel Corp.
+ * Copyright (C) 2000 - 2011, Intel Corp.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -361,6 +361,7 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
 
         gpe_block->node = gpe_device;
         gpe_block->gpe_count = (u16)(register_count * ACPI_GPE_REGISTER_WIDTH);
+        gpe_block->initialized = FALSE;
         gpe_block->register_count = register_count;
         gpe_block->block_base_number = gpe_block_base_number;
 
@@ -385,11 +386,12 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
                 return_ACPI_STATUS(status);
         }
 
+        acpi_gbl_all_gpes_initialized = FALSE;
+
         /* Find all GPE methods (_Lxx or_Exx) for this block */
 
         walk_info.gpe_block = gpe_block;
         walk_info.gpe_device = gpe_device;
-        walk_info.enable_this_gpe = FALSE;
         walk_info.execute_by_owner_id = FALSE;
 
         status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device,
@@ -421,48 +423,45 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
  *
  * FUNCTION:    acpi_ev_initialize_gpe_block
  *
- * PARAMETERS:  gpe_device          - Handle to the parent GPE block
- *              gpe_block           - Gpe Block info
+ * PARAMETERS:  acpi_gpe_callback
  *
  * RETURN:      Status
  *
- * DESCRIPTION: Initialize and enable a GPE block. First find and run any
- *              _PRT methods associated with the block, then enable the
- *              appropriate GPEs.
+ * DESCRIPTION: Initialize and enable a GPE block. Enable GPEs that have
+ *              associated methods.
  *              Note: Assumes namespace is locked.
  *
  ******************************************************************************/
 
 acpi_status
-acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
-                             struct acpi_gpe_block_info *gpe_block)
+acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
+                             struct acpi_gpe_block_info *gpe_block,
+                             void *ignored)
 {
         acpi_status status;
         struct acpi_gpe_event_info *gpe_event_info;
         u32 gpe_enabled_count;
         u32 gpe_index;
-        u32 gpe_number;
         u32 i;
         u32 j;
 
         ACPI_FUNCTION_TRACE(ev_initialize_gpe_block);
 
-        /* Ignore a null GPE block (e.g., if no GPE block 1 exists) */
-
-        if (!gpe_block) {
+        /*
+         * Ignore a null GPE block (e.g., if no GPE block 1 exists), and
+         * any GPE blocks that have been initialized already.
+         */
+        if (!gpe_block || gpe_block->initialized) {
                 return_ACPI_STATUS(AE_OK);
         }
 
         /*
-         * Enable all GPEs that have a corresponding method.  Any other GPEs
-         * within this block must be enabled via the acpi_enable_gpe interface.
+         * Enable all GPEs that have a corresponding method and have the
+         * ACPI_GPE_CAN_WAKE flag unset. Any other GPEs within this block
+         * must be enabled via the acpi_enable_gpe() interface.
          */
         gpe_enabled_count = 0;
 
-        if (gpe_device == acpi_gbl_fadt_gpe_device) {
-                gpe_device = NULL;
-        }
-
         for (i = 0; i < gpe_block->register_count; i++) {
                 for (j = 0; j < ACPI_GPE_REGISTER_WIDTH; j++) {
 
@@ -470,27 +469,24 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
 
                         gpe_index = (i * ACPI_GPE_REGISTER_WIDTH) + j;
                         gpe_event_info = &gpe_block->event_info[gpe_index];
-                        gpe_number = gpe_index + gpe_block->block_base_number;
-
-                        /* Ignore GPEs that have no corresponding _Lxx/_Exx method */
-
-                        if (!(gpe_event_info->flags & ACPI_GPE_DISPATCH_METHOD)) {
-                                continue;
-                        }
 
                         /*
-                         * If the GPE has already been enabled for runtime
-                         * signaling, make sure it remains enabled, but do not
-                         * increment its reference counter.
+                         * Ignore GPEs that have no corresponding _Lxx/_Exx method
+                         * and GPEs that are used to wake the system
                          */
-                        status = gpe_event_info->runtime_count ?
-                                acpi_ev_enable_gpe(gpe_event_info) :
-                                acpi_enable_gpe(gpe_device, gpe_number);
+                        if (((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK) ==
+                             ACPI_GPE_DISPATCH_NONE)
+                            || ((gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
+                                == ACPI_GPE_DISPATCH_HANDLER)
+                            || (gpe_event_info->flags & ACPI_GPE_CAN_WAKE)) {
+                                continue;
+                        }
 
+                        status = acpi_ev_add_gpe_reference(gpe_event_info);
                         if (ACPI_FAILURE(status)) {
                                 ACPI_EXCEPTION((AE_INFO, status,
-                                                "Could not enable GPE 0x%02X",
-                                                gpe_number));
+                                        "Could not enable GPE 0x%02X",
+                                        gpe_index + gpe_block->block_base_number));
                                 continue;
                         }
 
@@ -504,5 +500,7 @@ acpi_ev_initialize_gpe_block(struct acpi_namespace_node *gpe_device,
                                   gpe_enabled_count));
         }
 
+        gpe_block->initialized = TRUE;
+
         return_ACPI_STATUS(AE_OK);
 }