[PATCH 30/55] auxbus: New aux_realize_bus(), pairing with aux_init_bus()

[Markus Armbruster]

aux_init_bus() encapsulates the creation of an aux-bus and its
aux-to-i2c-bridge device.

Create aux_realize_bus() to similarly encapsulate their realization.

Signed-off-by: Markus Armbruster <address@hidden>
---
 include/hw/misc/auxbus.h | 7 +++++++
 hw/display/xlnx_dp.c     | 2 +-
 hw/misc/auxbus.c         | 5 +++++
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/include/hw/misc/auxbus.h b/include/hw/misc/auxbus.h
index a539a98c4b..6ab6cf5bb6 100644
--- a/include/hw/misc/auxbus.h
+++ b/include/hw/misc/auxbus.h
@@ -93,6 +93,13 @@ struct AUXSlave {
  */
 AUXBus *aux_init_bus(DeviceState *parent, const char *name);
 
+/**
+ * aux_realize_bus: Realize an AUX bus.
+ *
+ * @bus: The AUX bus.
+ */
+void aux_realize_bus(AUXBus *bus);
+
 /*
  * aux_request: Make a request on the bus.
  *
diff --git a/hw/display/xlnx_dp.c b/hw/display/xlnx_dp.c
index dd6aa172f3..b1d90cab1d 100644
--- a/hw/display/xlnx_dp.c
+++ b/hw/display/xlnx_dp.c
@@ -1264,7 +1264,7 @@ static void xlnx_dp_realize(DeviceState *dev, Error 
**errp)
     DisplaySurface *surface;
     struct audsettings as;
 
-    qdev_init_nofail(DEVICE(s->aux_bus->bridge));
+    aux_realize_bus(s->aux_bus);
 
     qdev_init_nofail(DEVICE(s->dpcd));
     aux_map_slave(AUX_SLAVE(s->dpcd), 0x0000);
diff --git a/hw/misc/auxbus.c b/hw/misc/auxbus.c
index 7fb020086f..9b4ccfa39c 100644
--- a/hw/misc/auxbus.c
+++ b/hw/misc/auxbus.c
@@ -81,6 +81,11 @@ AUXBus *aux_init_bus(DeviceState *parent, const char *name)
     return bus;
 }
 
+void aux_realize_bus(AUXBus *bus)
+{
+    qdev_init_nofail(DEVICE(bus->bridge));
+}
+
 void aux_map_slave(AUXSlave *aux_dev, hwaddr addr)
 {
     DeviceState *dev = DEVICE(aux_dev);
-- 
2.21.1