ACPICA: Major update for acpi_get_object_info external interface

Completed a major update for the acpi_get_object_info external interface.
Changes include:
 - Support for variable, unlimited length HID, UID, and CID strings
 - Support Processor objects the same as Devices (HID,UID,CID,ADR,STA, etc.)
 - Call the _SxW power methods on behalf of a device object
 - Determine if a device is a PCI root bridge
 - Change the ACPI_BUFFER parameter to ACPI_DEVICE_INFO.
These changes will require an update to all callers of this interface.
See the ACPICA Programmer Reference for details.

Also, update all invocations of acpi_get_object_info interface

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/drivers/acpi/acpica/utmisc.c b/drivers/acpi/acpica/utmisc.c
index fbe782348b0b..9cd65334ca75 100644
--- a/drivers/acpi/acpica/utmisc.c
+++ b/drivers/acpi/acpica/utmisc.c
@@ -120,6 +120,34 @@ const char *acpi_ut_validate_exception(acpi_status status)
 
 /*******************************************************************************
  *
+ * FUNCTION:    acpi_ut_is_pci_root_bridge
+ *
+ * PARAMETERS:  Id              - The HID/CID in string format
+ *
+ * RETURN:      TRUE if the Id is a match for a PCI/PCI-Express Root Bridge
+ *
+ * DESCRIPTION: Determine if the input ID is a PCI Root Bridge ID.
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_is_pci_root_bridge(char *id)
+{
+
+        /*
+         * Check if this is a PCI root bridge.
+         * ACPI 3.0+: check for a PCI Express root also.
+         */
+        if (!(ACPI_STRCMP(id,
+                          PCI_ROOT_HID_STRING)) ||
+            !(ACPI_STRCMP(id, PCI_EXPRESS_ROOT_HID_STRING))) {
+                return (TRUE);
+        }
+
+        return (FALSE);
+}
+
+/*******************************************************************************
+ *
  * FUNCTION:    acpi_ut_is_aml_table
  *
  * PARAMETERS:  Table               - An ACPI table