hw/arm: QOM'ify pxa2xx.c

Drop the use of 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/arm/pxa2xx.c

@@ -1107,9 +1107,10 @@ static const MemoryRegionOps pxa2xx_rtc_ops = {
     .endianness = DEVICE_NATIVE_ENDIAN,
 };
 
-static int pxa2xx_rtc_init(SysBusDevice *dev)
+static void pxa2xx_rtc_init(Object *obj)
 {
-    PXA2xxRTCState *s = PXA2XX_RTC(dev);
+    PXA2xxRTCState *s = PXA2XX_RTC(obj);
+    SysBusDevice *dev = SYS_BUS_DEVICE(obj);
     struct tm tm;
     int wom;
 
@@ -1138,11 +1139,9 @@ static int pxa2xx_rtc_init(SysBusDevice *dev)
 
     sysbus_init_irq(dev, &s->rtc_irq);
 
-    memory_region_init_io(&s->iomem, OBJECT(s), &pxa2xx_rtc_ops, s,
+    memory_region_init_io(&s->iomem, obj, &pxa2xx_rtc_ops, s,
                           "pxa2xx-rtc", 0x10000);
     sysbus_init_mmio(dev, &s->iomem);
-
-    return 0;
 }
 
 static void pxa2xx_rtc_pre_save(void *opaque)
@@ -1195,9 +1194,7 @@ static const VMStateDescription vmstate_pxa2xx_rtc_regs = {
 static void pxa2xx_rtc_sysbus_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = pxa2xx_rtc_init;
     dc->desc = "PXA2xx RTC Controller";
     dc->vmsd = &vmstate_pxa2xx_rtc_regs;
 }
@@ -1206,6 +1203,7 @@ static const TypeInfo pxa2xx_rtc_sysbus_info = {
     .name          = TYPE_PXA2XX_RTC,
     .parent        = TYPE_SYS_BUS_DEVICE,
     .instance_size = sizeof(PXA2xxRTCState),
+    .instance_init = pxa2xx_rtc_init,
     .class_init    = pxa2xx_rtc_sysbus_class_init,
 };
 
@@ -1501,19 +1499,18 @@ PXA2xxI2CState *pxa2xx_i2c_init(hwaddr base,
     return s;
 }
 
-static int pxa2xx_i2c_initfn(SysBusDevice *sbd)
+static void pxa2xx_i2c_initfn(Object *obj)
 {
-    DeviceState *dev = DEVICE(sbd);
-    PXA2xxI2CState *s = PXA2XX_I2C(dev);
+    DeviceState *dev = DEVICE(obj);
+    PXA2xxI2CState *s = PXA2XX_I2C(obj);
+    SysBusDevice *sbd = SYS_BUS_DEVICE(obj);
 
     s->bus = i2c_init_bus(dev, "i2c");
 
-    memory_region_init_io(&s->iomem, OBJECT(s), &pxa2xx_i2c_ops, s,
+    memory_region_init_io(&s->iomem, obj, &pxa2xx_i2c_ops, s,
                           "pxa2xx-i2c", s->region_size);
     sysbus_init_mmio(sbd, &s->iomem);
     sysbus_init_irq(sbd, &s->irq);
-
-    return 0;
 }
 
 I2CBus *pxa2xx_i2c_bus(PXA2xxI2CState *s)
@@ -1530,9 +1527,7 @@ static Property pxa2xx_i2c_properties[] = {
 static void pxa2xx_i2c_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = pxa2xx_i2c_initfn;
     dc->desc = "PXA2xx I2C Bus Controller";
     dc->vmsd = &vmstate_pxa2xx_i2c;
     dc->props = pxa2xx_i2c_properties;
@@ -1542,6 +1537,7 @@ static const TypeInfo pxa2xx_i2c_info = {
     .name          = TYPE_PXA2XX_I2C,
     .parent        = TYPE_SYS_BUS_DEVICE,
     .instance_size = sizeof(PXA2xxI2CState),
+    .instance_init = pxa2xx_i2c_initfn,
     .class_init    = pxa2xx_i2c_class_init,
 };