q800: move macfb device to Q800MachineState

Also change the instantiation of the macfb device to use object_initialize_child().

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20230621085353.113233-23-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

hw/m68k/q800.c

@@ -452,7 +452,9 @@ static void q800_machine_init(MachineState *machine)
 
     /* framebuffer in nubus slot #9 */
 
-    dev = qdev_new(TYPE_NUBUS_MACFB);
+    object_initialize_child(OBJECT(machine), "macfb", &m->macfb,
+                            TYPE_NUBUS_MACFB);
+    dev = DEVICE(&m->macfb);
     qdev_prop_set_uint32(dev, "slot", 9);
     qdev_prop_set_uint32(dev, "width", graphic_width);
     qdev_prop_set_uint32(dev, "height", graphic_height);
@@ -462,7 +464,7 @@ static void q800_machine_init(MachineState *machine)
     } else {
         qdev_prop_set_uint8(dev, "display", MACFB_DISPLAY_VGA);
     }
-    qdev_realize_and_unref(dev, BUS(nubus), &error_fatal);
+    qdev_realize(dev, BUS(nubus), &error_fatal);
 
     macfb_mode = (NUBUS_MACFB(dev)->macfb).mode;
 

include/hw/m68k/q800.h

@@ -35,6 +35,7 @@
 #include "hw/scsi/esp.h"
 #include "hw/block/swim.h"
 #include "hw/nubus/mac-nubus-bridge.h"
+#include "hw/display/macfb.h"
 
 /*
  * The main Q800 machine
@@ -54,6 +55,7 @@ struct Q800MachineState {
     SysBusESPState esp;
     Swim swim;
     MacNubusBridge mac_nubus_bridge;
+    MacfbNubusState macfb;
     MemoryRegion macio;
     MemoryRegion macio_alias;
 };