[PATCH v3 1/2] hw/char/serial: Expose SerialState::irq as QDev GPIO

[Philippe Mathieu-Daudé]

Use the QDev GPIO API to set the TYPE_SERIAL output
IRQ, this way we don't have to explicitly set the
SerialState::irq pointer before realizing the object.

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
 hw/char/serial-isa.c       | 2 +-
 hw/char/serial-pci-multi.c | 2 +-
 hw/char/serial-pci.c       | 2 +-
 hw/char/serial.c           | 2 ++
 4 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/hw/char/serial-isa.c b/hw/char/serial-isa.c
index 3d913891dcb..2e755eaf440 100644
--- a/hw/char/serial-isa.c
+++ b/hw/char/serial-isa.c
@@ -76,8 +76,8 @@ static void serial_isa_realizefn(DeviceState *dev, Error 
**errp)
     }
     index++;
 
-    s->irq = isa_get_irq(isadev, isa->isairq);
     qdev_realize(DEVICE(s), NULL, errp);
+    qdev_connect_gpio_out(DEVICE(s), 0, isa_get_irq(isadev, isa->isairq));
     qdev_set_legacy_instance_id(dev, isa->iobase, 3);
 
     memory_region_init_io(&s->io, OBJECT(isa), &serial_io_ops, s, "serial", 8);
diff --git a/hw/char/serial-pci-multi.c b/hw/char/serial-pci-multi.c
index 7578e863cfe..54b6224f4da 100644
--- a/hw/char/serial-pci-multi.c
+++ b/hw/char/serial-pci-multi.c
@@ -110,7 +110,7 @@ static void multi_serial_pci_realize(PCIDevice *dev, Error 
**errp)
             multi_serial_pci_exit(dev);
             return;
         }
-        s->irq = pci->irqs[i];
+        qdev_connect_gpio_out(DEVICE(s), 0, pci->irqs[i]);
         pci->name[i] = g_strdup_printf("uart #%zu", i + 1);
         memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s,
                               pci->name[i], 8);
diff --git a/hw/char/serial-pci.c b/hw/char/serial-pci.c
index 6659cef5d4b..4291bfc4e7f 100644
--- a/hw/char/serial-pci.c
+++ b/hw/char/serial-pci.c
@@ -52,10 +52,10 @@ static void serial_pci_realize(PCIDevice *dev, Error **errp)
     if (!qdev_realize(DEVICE(s), NULL, errp)) {
         return;
     }
+    qdev_connect_gpio_out(DEVICE(s), 0, pci_allocate_irq(&pci->dev));
 
     pci->dev.config[PCI_CLASS_PROG] = pci->prog_if;
     pci->dev.config[PCI_INTERRUPT_PIN] = 0x01;
-    s->irq = pci_allocate_irq(&pci->dev);
 
     memory_region_init_io(&s->io, OBJECT(pci), &serial_io_ops, s, "serial", 8);
     pci_register_bar(&pci->dev, 0, PCI_BASE_ADDRESS_SPACE_IO, &s->io);
diff --git a/hw/char/serial.c b/hw/char/serial.c
index 70044e14a0f..cdff29ccee2 100644
--- a/hw/char/serial.c
+++ b/hw/char/serial.c
@@ -923,6 +923,8 @@ static void serial_realize(DeviceState *dev, Error **errp)
 {
     SerialState *s = SERIAL(dev);
 
+    qdev_init_gpio_out(dev, &s->irq, 1);
+
     s->modem_status_poll = timer_new_ns(QEMU_CLOCK_VIRTUAL, (QEMUTimerCB *) 
serial_update_msl, s);
 
     s->fifo_timeout_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, (QEMUTimerCB *) 
fifo_timeout_int, s);
-- 
2.47.1