hw/arm/pxa2xx_gpio: Pass CPU using QOM link property

Instead of passing the CPU index and resolving it,
use a QOM link to directly pass the CPU.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20231030083706.63685-1-philmd@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

hw/arm/pxa2xx_gpio.c

@@ -32,7 +32,6 @@ struct PXA2xxGPIOInfo {
     MemoryRegion iomem;
     qemu_irq irq0, irq1, irqX;
     int lines;
-    int ncpu;
     ARMCPU *cpu;
 
     /* XXX: GNU C vectors are more suitable */
@@ -266,12 +265,11 @@ static const MemoryRegionOps pxa_gpio_ops = {
 DeviceState *pxa2xx_gpio_init(hwaddr base,
                               ARMCPU *cpu, DeviceState *pic, int lines)
 {
-    CPUState *cs = CPU(cpu);
     DeviceState *dev;
 
     dev = qdev_new(TYPE_PXA2XX_GPIO);
     qdev_prop_set_int32(dev, "lines", lines);
-    qdev_prop_set_int32(dev, "ncpu", cs->cpu_index);
+    object_property_set_link(OBJECT(dev), "cpu", OBJECT(cpu), &error_abort);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
 
     sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, base);
@@ -303,8 +301,6 @@ static void pxa2xx_gpio_realize(DeviceState *dev, Error **errp)
 {
     PXA2xxGPIOInfo *s = PXA2XX_GPIO(dev);
 
-    s->cpu = ARM_CPU(qemu_get_cpu(s->ncpu));
-
     qdev_init_gpio_in(dev, pxa2xx_gpio_set, s->lines);
     qdev_init_gpio_out(dev, s->handler, s->lines);
 }
@@ -339,7 +335,7 @@ static const VMStateDescription vmstate_pxa2xx_gpio_regs = {
 
 static Property pxa2xx_gpio_properties[] = {
     DEFINE_PROP_INT32("lines", PXA2xxGPIOInfo, lines, 0),
-    DEFINE_PROP_INT32("ncpu", PXA2xxGPIOInfo, ncpu, 0),
+    DEFINE_PROP_LINK("cpu", PXA2xxGPIOInfo, cpu, TYPE_ARM_CPU, ARMCPU *),
     DEFINE_PROP_END_OF_LIST(),
 };