[PATCH v2 09/40] pl050: introduce pl050_mouse_class_init() and pl050_mouse_realize()

[Mark Cave-Ayland]

Introduce a new pl050_mouse_class_init() function containing a call to
device_class_set_parent_realize() which calls a new pl050_mouse_realize()
function to initialise the PS2 mouse device.

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>
---
 hw/input/pl050.c | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/hw/input/pl050.c b/hw/input/pl050.c
index 24363c007e..fcc40758a3 100644
--- a/hw/input/pl050.c
+++ b/hw/input/pl050.c
@@ -153,10 +153,6 @@ static void pl050_realize(DeviceState *dev, Error **errp)
 {
     PL050State *s = PL050(dev);
 
-    if (s->is_mouse) {
-        s->ps2dev = ps2_mouse_init();
-    }
-
     qdev_connect_gpio_out(DEVICE(s->ps2dev), PS2_DEVICE_IRQ,
                           qdev_get_gpio_in_named(dev, "ps2-input-irq", 0));
 }
@@ -177,6 +173,15 @@ static void pl050_kbd_init(Object *obj)
     s->is_mouse = false;
 }
 
+static void pl050_mouse_realize(DeviceState *dev, Error **errp)
+{
+    PL050DeviceClass *pdc = PL050_GET_CLASS(dev);
+    PL050State *ps = PL050(dev);
+
+    ps->ps2dev = ps2_mouse_init();
+    pdc->parent_realize(dev, errp);
+}
+
 static void pl050_mouse_init(Object *obj)
 {
     PL050State *s = PL050(obj);
@@ -201,11 +206,21 @@ static const TypeInfo pl050_kbd_info = {
     .class_init    = pl050_kbd_class_init,
 };
 
+static void pl050_mouse_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+    PL050DeviceClass *pdc = PL050_CLASS(oc);
+
+    device_class_set_parent_realize(dc, pl050_mouse_realize,
+                                    &pdc->parent_realize);
+}
+
 static const TypeInfo pl050_mouse_info = {
     .name          = TYPE_PL050_MOUSE_DEVICE,
     .parent        = TYPE_PL050,
     .instance_init = pl050_mouse_init,
     .instance_size = sizeof(PL050MouseState),
+    .class_init    = pl050_mouse_class_init,
 };
 
 static void pl050_init(Object *obj)
-- 
2.30.2