[PATCH v2 25/54] pckbd: implement i8042_mmio_realize() function

[Mark Cave-Ayland]

Move the initialisation of the register memory region to the I8042_MMIO device
realize function and expose it using sysbus_init_mmio().

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Helge Deller <deller@gmx.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
---
 hw/input/pckbd.c         | 14 +++++++++++++-
 include/hw/input/i8042.h |  1 +
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/hw/input/pckbd.c b/hw/input/pckbd.c
index a70442e0f8..bc51f7eedd 100644
--- a/hw/input/pckbd.c
+++ b/hw/input/pckbd.c
@@ -673,6 +673,17 @@ static void i8042_mmio_reset(DeviceState *dev)
     kbd_reset(ks);
 }
 
+static void i8042_mmio_realize(DeviceState *dev, Error **errp)
+{
+    MMIOKBDState *s = I8042_MMIO(dev);
+    KBDState *ks = &s->kbd;
+
+    memory_region_init_io(&s->region, OBJECT(dev), &i8042_mmio_ops, ks,
+                          "i8042", s->size);
+
+    sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->region);
+}
+
 static Property i8042_mmio_properties[] = {
     DEFINE_PROP_UINT64("mask", MMIOKBDState, kbd.mask, UINT64_MAX),
     DEFINE_PROP_UINT32("size", MMIOKBDState, size, -1),
@@ -683,6 +694,7 @@ static void i8042_mmio_class_init(ObjectClass *klass, void 
*data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
 
+    dc->realize = i8042_mmio_realize;
     dc->reset = i8042_mmio_reset;
     device_class_set_props(dc, i8042_mmio_properties);
     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
@@ -708,7 +720,7 @@ void i8042_mm_init(qemu_irq kbd_irq, qemu_irq mouse_irq,
 
     vmstate_register(NULL, 0, &vmstate_kbd, s);
 
-    memory_region_init_io(region, NULL, &i8042_mmio_ops, s, "i8042", size);
+    region = &I8042_MMIO(dev)->region;
 
     s->kbd = ps2_kbd_init(kbd_update_kbd_irq, s);
     s->mouse = ps2_mouse_init(kbd_update_aux_irq, s);
diff --git a/include/hw/input/i8042.h b/include/hw/input/i8042.h
index ac4098b957..59d695a9dd 100644
--- a/include/hw/input/i8042.h
+++ b/include/hw/input/i8042.h
@@ -58,6 +58,7 @@ struct MMIOKBDState {
 
     KBDState kbd;
     uint32_t size;
+    MemoryRegion region;
 };
 
 #define I8042_A20_LINE "a20"
-- 
2.30.2