hpet: Use QOM realize for hpet

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
[AF: Avoided SYS_BUS_DEVICE() in loop]
Signed-off-by: Andreas Färber <afaerber@suse.de>

1 files changed, 19 insertions, 13 deletions

diff --git a/hw/timer/hpet.c b/hw/timer/hpet.c
index 228598f345..648b38362d 100644
--- a/hw/timer/hpet.c
+++ b/hw/timer/hpet.c
@@ -686,8 +686,19 @@ static void hpet_handle_legacy_irq(void *opaque, int n, int level)
     }
 }
 
-static int hpet_init(SysBusDevice *dev)
+static void hpet_init(Object *obj)
 {
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
+    HPETState *s = HPET(obj);
+
+    /* HPET Area */
+    memory_region_init_io(&s->iomem, obj, &hpet_ram_ops, s, "hpet", 0x400);
+    sysbus_init_mmio(sbd, &s->iomem);
+}
+
+static void hpet_realize(DeviceState *dev, Error **errp)
+{
+    SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
     HPETState *s = HPET(dev);
     int i;
     HPETTimer *timer;
@@ -698,14 +709,14 @@ static int hpet_init(SysBusDevice *dev)
     }
 
     if (hpet_cfg.count == 8) {
-        fprintf(stderr, "Only 8 instances of HPET is allowed\n");
-        return -1;
+        error_setg(errp, "Only 8 instances of HPET is allowed");
+        return;
     }
 
     s->hpet_id = hpet_cfg.count++;
 
     for (i = 0; i < HPET_NUM_IRQ_ROUTES; i++) {
-        sysbus_init_irq(dev, &s->irqs[i]);
+        sysbus_init_irq(sbd, &s->irqs[i]);
     }
 
     if (s->num_timers < HPET_MIN_TIMERS) {
@@ -725,13 +736,8 @@ static int hpet_init(SysBusDevice *dev)
     s->capability |= (s->num_timers - 1) << HPET_ID_NUM_TIM_SHIFT;
     s->capability |= ((HPET_CLK_PERIOD) << 32);
 
-    qdev_init_gpio_in(&dev->qdev, hpet_handle_legacy_irq, 2);
-    qdev_init_gpio_out(&dev->qdev, &s->pit_enabled, 1);
-
-    /* HPET Area */
-    memory_region_init_io(&s->iomem, OBJECT(s), &hpet_ram_ops, s, "hpet", 0x400);
-    sysbus_init_mmio(dev, &s->iomem);
-    return 0;
+    qdev_init_gpio_in(dev, hpet_handle_legacy_irq, 2);
+    qdev_init_gpio_out(dev, &s->pit_enabled, 1);
 }
 
 static Property hpet_device_properties[] = {
@@ -743,9 +749,8 @@ static Property hpet_device_properties[] = {
 static void hpet_device_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = hpet_init;
+    dc->realize = hpet_realize;
     dc->no_user = 1;
     dc->reset = hpet_reset;
     dc->vmsd = &vmstate_hpet;
@@ -756,6 +761,7 @@ static const TypeInfo hpet_device_info = {
     .name          = TYPE_HPET,
     .parent        = TYPE_SYS_BUS_DEVICE,
     .instance_size = sizeof(HPETState),
+    .instance_init = hpet_init,
     .class_init    = hpet_device_class_init,
 };