lasips2: don't use legacy ps2_mouse_init() function

Instantiate the PS2 mouse device within LASIPS2MousePort using
object_initialize_child() in lasips2_mouse_port_init() and realize it in
lasips2_mouse_port_realize() accordingly.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Helge Deller <deller@gmx.de>
Acked-by: Helge Deller <deller@gmx.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20220712215251.7944-34-mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

hw/input/lasips2.c

@@ -398,10 +398,15 @@ static const TypeInfo lasips2_kbd_port_info = {
 
 static void lasips2_mouse_port_realize(DeviceState *dev, Error **errp)
 {
+    LASIPS2MousePort *s = LASIPS2_MOUSE_PORT(dev);
     LASIPS2Port *lp = LASIPS2_PORT(dev);
     LASIPS2PortDeviceClass *lpdc = LASIPS2_PORT_GET_CLASS(lp);
 
-    lp->ps2dev = ps2_mouse_init();
+    if (!sysbus_realize(SYS_BUS_DEVICE(&s->mouse), errp)) {
+        return;
+    }
+
+    lp->ps2dev = PS2_DEVICE(&s->mouse);
     lpdc->parent_realize(dev, errp);
 }
 
@@ -412,6 +417,9 @@ static void lasips2_mouse_port_init(Object *obj)
 
     memory_region_init_io(&lp->reg, obj, &lasips2_reg_ops, lp, "lasips2-mouse",
                           0x100);
+
+    object_initialize_child(obj, "mouse", &s->mouse, TYPE_PS2_MOUSE_DEVICE);
+
     lp->id = 1;
     lp->lasips2 = container_of(s, LASIPS2State, mouse_port);
 }

include/hw/input/lasips2.h

@@ -61,6 +61,8 @@ OBJECT_DECLARE_SIMPLE_TYPE(LASIPS2MousePort, LASIPS2_MOUSE_PORT)
 
 struct LASIPS2MousePort {
     LASIPS2Port parent_obj;
+
+    PS2MouseState mouse;
 };
 
 struct LASIPS2State {