diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 3c407cdc1ec1ce95acd5b6ce071e41f12d2344d2..e050254ae143cde4cf96d828edf43ab4ab851089 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -67,6 +67,7 @@ struct acpi_ec {
 
 extern struct acpi_ec *first_ec;
 
+int acpi_pci_root_init(void);
 int acpi_ec_init(void);
 int acpi_ec_ecdt_probe(void);
 int acpi_boot_ec_enable(void);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 7928d4dc705618a833ccce3172ed5113307d4cff..a233fe93dfac2b74c878f14f0179f1c2cd349da5 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -699,7 +699,7 @@ static int acpi_pci_root_remove(struct acpi_device *device, int type)
 	return 0;
 }
 
-static int __init acpi_pci_root_init(void)
+int __init acpi_pci_root_init(void)
 {
 	acpi_hest_init();
 
@@ -712,5 +712,3 @@ static int __init acpi_pci_root_init(void)
 
 	return 0;
 }
-
-subsys_initcall(acpi_pci_root_init);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 726f0d1ace4b3e90a3d348bdacfaf54500643f4c..a7e81ac2cd0cbbb9aa81d5c83643d0f0088c13fa 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1831,6 +1831,7 @@ int __init acpi_scan_init(void)
 	}
 
 	acpi_power_init();
+	acpi_pci_root_init();
 
 	/*
 	 * Enumerate devices in the ACPI namespace.