timer: cadence_ttc: Convert to instance_init

SysBusDevice::init is deprecated. Convert to instance_init
as prescribed by QOM conventions.
Signed-off-by: NAlistair Francis <alistair.francis@xilinx.com>
Message-id: 1223f14833159b9ea5c57734dd2ffa88d4b15a83.1403583596.git.alistair.francis@xilinx.com
Reviewed-by: NPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

hw/timer/cadence_ttc.c

@@ -406,21 +406,19 @@ static void cadence_timer_init(uint32_t freq, CadenceTimerState *s)
     s->timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, cadence_timer_tick, s);
 }
 
-static int cadence_ttc_init(SysBusDevice *dev)
+static void cadence_ttc_init(Object *obj)
 {
-    CadenceTTCState *s = CADENCE_TTC(dev);
+    CadenceTTCState *s = CADENCE_TTC(obj);
     int i;
 
     for (i = 0; i < 3; ++i) {
         cadence_timer_init(133000000, &s->timer[i]);
-        sysbus_init_irq(dev, &s->timer[i].irq);
+        sysbus_init_irq(SYS_BUS_DEVICE(obj), &s->timer[i].irq);
     }
 
-    memory_region_init_io(&s->iomem, OBJECT(s), &cadence_ttc_ops, s,
+    memory_region_init_io(&s->iomem, obj, &cadence_ttc_ops, s,
                           "timer", 0x1000);
-    sysbus_init_mmio(dev, &s->iomem);
-
-    return 0;
+    sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->iomem);
 }
 
 static void cadence_timer_pre_save(void *opaque)
@@ -474,9 +472,7 @@ static const VMStateDescription vmstate_cadence_ttc = {
 static void cadence_ttc_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *sdc = SYS_BUS_DEVICE_CLASS(klass);
 
-    sdc->init = cadence_ttc_init;
     dc->vmsd = &vmstate_cadence_ttc;
 }
 
@@ -484,6 +480,7 @@ static const TypeInfo cadence_ttc_info = {
     .name  = TYPE_CADENCE_TTC,
     .parent = TYPE_SYS_BUS_DEVICE,
     .instance_size  = sizeof(CadenceTTCState),
+    .instance_init = cadence_ttc_init,
     .class_init = cadence_ttc_class_init,
 };