hw/intc: QOM'ify exynos4210_combiner.c

Drop the old SysBus init function and use instance_init

Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/intc/exynos4210_combiner.c

@@ -406,10 +406,11 @@ static const MemoryRegionOps exynos4210_combiner_ops = {
 /*
  * Internal Combiner initialization.
  */
-static int exynos4210_combiner_init(SysBusDevice *sbd)
+static void exynos4210_combiner_init(Object *obj)
 {
-    DeviceState *dev = DEVICE(sbd);
-    Exynos4210CombinerState *s = EXYNOS4210_COMBINER(dev);
+    DeviceState *dev = DEVICE(obj);
+    Exynos4210CombinerState *s = EXYNOS4210_COMBINER(obj);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
     unsigned int i;
 
     /* Allocate general purpose input signals and connect a handler to each of
@@ -421,11 +422,9 @@ static int exynos4210_combiner_init(SysBusDevice *sbd)
         sysbus_init_irq(sbd, &s->output_irq[i]);
     }
 
-    memory_region_init_io(&s->iomem, OBJECT(s), &exynos4210_combiner_ops, s,
+    memory_region_init_io(&s->iomem, obj, &exynos4210_combiner_ops, s,
                           "exynos4210-combiner", IIC_REGION_SIZE);
     sysbus_init_mmio(sbd, &s->iomem);
-
-    return 0;
 }
 
 static Property exynos4210_combiner_properties[] = {
@@ -436,9 +435,7 @@ static Property exynos4210_combiner_properties[] = {
 static void exynos4210_combiner_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = exynos4210_combiner_init;
     dc->reset = exynos4210_combiner_reset;
     dc->props = exynos4210_combiner_properties;
     dc->vmsd = &vmstate_exynos4210_combiner;
@@ -448,6 +445,7 @@ static const TypeInfo exynos4210_combiner_info = {
     .name          = TYPE_EXYNOS4210_COMBINER,
     .parent        = TYPE_SYS_BUS_DEVICE,
     .instance_size = sizeof(Exynos4210CombinerState),
+    .instance_init = exynos4210_combiner_init,
     .class_init    = exynos4210_combiner_class_init,
 };