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-rw-r--r--hw/arm/z2.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/hw/arm/z2.c b/hw/arm/z2.c
index a0f4095990..e1f22f5868 100644
--- a/hw/arm/z2.c
+++ b/hw/arm/z2.c
@@ -111,9 +111,12 @@ typedef struct {
     int pos;
 } ZipitLCD;
 
+#define TYPE_ZIPIT_LCD "zipit-lcd"
+#define ZIPIT_LCD(obj) OBJECT_CHECK(ZipitLCD, (obj), TYPE_ZIPIT_LCD)
+
 static uint32_t zipit_lcd_transfer(SSISlave *dev, uint32_t value)
 {
-    ZipitLCD *z = FROM_SSI_SLAVE(ZipitLCD, dev);
+    ZipitLCD *z = ZIPIT_LCD(dev);
     uint16_t val;
     if (z->selected) {
         z->buf[z->pos] = value & 0xff;
@@ -153,7 +156,7 @@ static void z2_lcd_cs(void *opaque, int line, int level)
 
 static void zipit_lcd_realize(SSISlave *dev, Error **errp)
 {
-    ZipitLCD *z = FROM_SSI_SLAVE(ZipitLCD, dev);
+    ZipitLCD *z = ZIPIT_LCD(dev);
     z->selected = 0;
     z->enabled = 0;
     z->pos = 0;
@@ -185,7 +188,7 @@ static void zipit_lcd_class_init(ObjectClass *klass, void *data)
 }
 
 static const TypeInfo zipit_lcd_info = {
-    .name          = "zipit-lcd",
+    .name          = TYPE_ZIPIT_LCD,
     .parent        = TYPE_SSI_SLAVE,
     .instance_size = sizeof(ZipitLCD),
     .class_init    = zipit_lcd_class_init,
@@ -325,7 +328,7 @@ static void z2_init(MachineState *machine)
 
     type_register_static(&zipit_lcd_info);
     type_register_static(&aer915_info);
-    z2_lcd = ssi_create_slave(mpu->ssp[1], "zipit-lcd");
+    z2_lcd = ssi_create_slave(mpu->ssp[1], TYPE_ZIPIT_LCD);
     bus = pxa2xx_i2c_bus(mpu->i2c[0]);
     i2c_create_slave(bus, TYPE_AER915, 0x55);
     wm = i2c_create_slave(bus, TYPE_WM8750, 0x1b);