[PATCH 25/26] hw/usb/usb-hcd: Use XHCI type definitions

[Philippe Mathieu-Daudé <f4bug@xxxxxxxxx>]

Various machine/board/soc models create XHCI device instances
with the generic QDEV API, and don't need to access USB internals.

Simplify header inclusions by moving the QOM type names into a
simple header, with no need to include other "hw/usb" headers.

Suggested-by: BALATON Zoltan <balaton@xxxxxxxxxx>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@xxxxxxxxx>
---
 hw/usb/hcd-xhci.h        | 2 +-
 include/hw/usb/usb-hcd.h | 3 +++
 hw/ppc/spapr.c           | 2 +-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/hw/usb/hcd-xhci.h b/hw/usb/hcd-xhci.h
index f9a3aaceec..b6c54e38a6 100644
--- a/hw/usb/hcd-xhci.h
+++ b/hw/usb/hcd-xhci.h
@@ -23,9 +23,9 @@
 #define HW_USB_HCD_XHCI_H
 
 #include "usb-internal.h"
+#include "hw/usb/usb-hcd.h"
 
 #define TYPE_XHCI "base-xhci"
-#define TYPE_NEC_XHCI "nec-usb-xhci"
 #define TYPE_QEMU_XHCI "qemu-xhci"
 
 #define XHCI(obj) \
diff --git a/include/hw/usb/usb-hcd.h b/include/hw/usb/usb-hcd.h
index c9d0a88984..56107fca62 100644
--- a/include/hw/usb/usb-hcd.h
+++ b/include/hw/usb/usb-hcd.h
@@ -30,4 +30,7 @@
 #define TYPE_VT82C686B_USB_UHCI     "vt82c686b-usb-uhci"
 #define TYPE_ICH9_USB_UHCI(n)       "ich9-usb-uhci" #n
 
+/* XHCI */
+#define TYPE_NEC_XHCI "nec-usb-xhci"
+
 #endif
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index db1706a66c..d8b3978f24 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -2961,7 +2961,7 @@ static void spapr_machine_init(MachineState *machine)
         if (smc->use_ohci_by_default) {
             pci_create_simple(phb->bus, -1, TYPE_PCI_OHCI);
         } else {
-            pci_create_simple(phb->bus, -1, "nec-usb-xhci");
+            pci_create_simple(phb->bus, -1, TYPE_NEC_XHCI);
         }
 
         if (spapr->has_graphics) {
-- 
2.21.3