[Qemu-devel] [PATCH v5 1/5] usb/hcd-ehci-sysbus: Convert to QOM realize

["Andreas Färber" <afaerber@suse.de>]

The SysBus qdev initfn merely calls SysBusDeviceClass::init, so we can
replace it with a realizefn already. This avoids getting into any initfn
ambiguity with the upcoming Faraday EHCI implementation.

Rename internal usb_ehci_initfn() to usb_ehci_realize() to allow to
return Errors from common initialization code as well.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 hw/usb/hcd-ehci-pci.c    |  2 +-
 hw/usb/hcd-ehci-sysbus.c | 13 ++++++-------
 hw/usb/hcd-ehci.c        |  2 +-
 hw/usb/hcd-ehci.h        |  2 +-
 4 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/hw/usb/hcd-ehci-pci.c b/hw/usb/hcd-ehci-pci.c
index 0eb7826..70fc65e 100644
--- a/hw/usb/hcd-ehci-pci.c
+++ b/hw/usb/hcd-ehci-pci.c
@@ -68,7 +68,7 @@ static int usb_ehci_pci_initfn(PCIDevice *dev)
     s->capsbase = 0x00;
     s->opregbase = 0x20;
 
-    usb_ehci_initfn(s, DEVICE(dev));
+    usb_ehci_realize(s, DEVICE(dev), NULL);
     pci_register_bar(dev, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->mem);
 
     return 0;
diff --git a/hw/usb/hcd-ehci-sysbus.c b/hw/usb/hcd-ehci-sysbus.c
index b68a66a..4be3d17 100644
--- a/hw/usb/hcd-ehci-sysbus.c
+++ b/hw/usb/hcd-ehci-sysbus.c
@@ -32,8 +32,9 @@ static Property ehci_sysbus_properties[] = {
     DEFINE_PROP_END_OF_LIST(),
 };
 
-static int usb_ehci_sysbus_initfn(SysBusDevice *dev)
+static void usb_ehci_sysbus_realize(DeviceState *dev, Error **errp)
 {
+    SysBusDevice *d = SYS_BUS_DEVICE(dev);
     EHCISysBusState *i = SYS_BUS_EHCI(dev);
     SysBusEHCIClass *sec = SYS_BUS_EHCI_GET_CLASS(dev);
     EHCIState *s = &i->ehci;
@@ -42,18 +43,16 @@ static int usb_ehci_sysbus_initfn(SysBusDevice *dev)
     s->opregbase = sec->opregbase;
     s->dma = &dma_context_memory;
 
-    usb_ehci_initfn(s, DEVICE(dev));
-    sysbus_init_irq(dev, &s->irq);
-    sysbus_init_mmio(dev, &s->mem);
-    return 0;
+    usb_ehci_realize(s, dev, errp);
+    sysbus_init_irq(d, &s->irq);
+    sysbus_init_mmio(d, &s->mem);
 }
 
 static void ehci_sysbus_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
-    SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
 
-    k->init = usb_ehci_sysbus_initfn;
+    dc->realize = usb_ehci_sysbus_realize;
     dc->vmsd = &vmstate_ehci_sysbus;
     dc->props = ehci_sysbus_properties;
 }
diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c
index 0d3799d..66d0cee 100644
--- a/hw/usb/hcd-ehci.c
+++ b/hw/usb/hcd-ehci.c
@@ -2508,7 +2508,7 @@ const VMStateDescription vmstate_ehci = {
     }
 };
 
-void usb_ehci_initfn(EHCIState *s, DeviceState *dev)
+void usb_ehci_realize(EHCIState *s, DeviceState *dev, Error **errp)
 {
     int i;
 
diff --git a/hw/usb/hcd-ehci.h b/hw/usb/hcd-ehci.h
index e95bb7e..8105fcb 100644
--- a/hw/usb/hcd-ehci.h
+++ b/hw/usb/hcd-ehci.h
@@ -322,7 +322,7 @@ struct EHCIState {
 
 extern const VMStateDescription vmstate_ehci;
 
-void usb_ehci_initfn(EHCIState *s, DeviceState *dev);
+void usb_ehci_realize(EHCIState *s, DeviceState *dev, Error **errp);
 
 #define TYPE_PCI_EHCI "pci-ehci-usb"
 #define PCI_EHCI(obj) OBJECT_CHECK(EHCIPCIState, (obj), TYPE_PCI_EHCI)
-- 
1.8.1.4