[PATCH 2/2] hw/ppc: Use TYPE_SYSBUS_OHCI instead of hardcoded string

[Philippe Mathieu-Daudé]

By using the TYPE_* definitions for devices, we can:
- quickly find where devices are used with 'git-grep'
- easily rename a non-user-creatable device (one-line change).

Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
---
 hw/display/sm501.c | 3 ++-
 hw/ppc/sam460ex.c  | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/hw/display/sm501.c b/hw/display/sm501.c
index 9cccc68c35..c122a4eca5 100644
--- a/hw/display/sm501.c
+++ b/hw/display/sm501.c
@@ -36,6 +36,7 @@
 #include "hw/qdev-properties.h"
 #include "hw/i2c/i2c.h"
 #include "hw/display/i2c-ddc.h"
+#include "hw/usb/hcd-ohci.h"
 #include "qemu/range.h"
 #include "ui/pixel_ops.h"
 #include "qemu/bswap.h"
@@ -1961,7 +1962,7 @@ static void sm501_realize_sysbus(DeviceState *dev, Error 
**errp)
     sysbus_init_mmio(sbd, &s->state.mmio_region);
 
     /* bridge to usb host emulation module */
-    usb_dev = qdev_new("sysbus-ohci");
+    usb_dev = qdev_new(TYPE_SYSBUS_OHCI);
     qdev_prop_set_uint32(usb_dev, "num-ports", 2);
     qdev_prop_set_uint64(usb_dev, "dma-offset", s->base);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(usb_dev), &error_fatal);
diff --git a/hw/ppc/sam460ex.c b/hw/ppc/sam460ex.c
index 1a106a68de..593436937a 100644
--- a/hw/ppc/sam460ex.c
+++ b/hw/ppc/sam460ex.c
@@ -35,6 +35,7 @@
 #include "hw/char/serial.h"
 #include "hw/i2c/ppc4xx_i2c.h"
 #include "hw/i2c/smbus_eeprom.h"
+#include "hw/usb/hcd-ohci.h"
 #include "hw/usb/hcd-ehci.h"
 #include "hw/ppc/fdt.h"
 #include "hw/qdev-properties.h"
@@ -370,7 +371,7 @@ static void sam460ex_init(MachineState *machine)
 
     /* USB */
     sysbus_create_simple(TYPE_PPC4xx_EHCI, 0x4bffd0400, uic[2][29]);
-    dev = qdev_new("sysbus-ohci");
+    dev = qdev_new(TYPE_SYSBUS_OHCI);
     qdev_prop_set_string(dev, "masterbus", "usb-bus.0");
     qdev_prop_set_uint32(dev, "num-ports", 6);
     sbdev = SYS_BUS_DEVICE(dev);
-- 
2.21.3