2 files changed, 12 insertions, 0 deletions

diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index dba7805176bf..9f437e97e9e8 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -14,6 +14,9 @@
 struct pci_sysdata {
         int             domain;         /* PCI domain */
         int             node;           /* NUMA node */
+#ifdef CONFIG_ACPI
+        void            *acpi;          /* ACPI-specific data */
+#endif
 #ifdef CONFIG_X86_64
         void            *iommu;         /* IOMMU private data */
 #endif
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 0c01261fe5a8..3d49094ed3e8 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -522,6 +522,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root)
         sd = &info->sd;
         sd->domain = domain;
         sd->node = node;
+        sd->acpi = device->handle;
         /*
          * Maybe the desired pci bus has been already scanned. In such case
          * it is unnecessary to scan the pci bus with the given domain,busnum.
@@ -593,6 +594,14 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root)
         return bus;
 }
 
+int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
+{
+        struct pci_sysdata *sd = bridge->bus->sysdata;
+
+        ACPI_HANDLE_SET(&bridge->dev, sd->acpi);
+        return 0;
+}
+
 int __init pci_acpi_init(void)
 {
         struct pci_dev *dev = NULL;