qdev: gpio: Register GPIO outputs as QOM links
Within the object that contains the GPIO output. This allows for
connecting GPIO outputs via setting of a Link property.
Also clear the link value to zero. This catch-alls the case
where a device improperly inits a gpio_out (malloc instead of
malloc0).
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
diff --git a/hw/core/qdev.c b/hw/core/qdev.c
index a140c79..2b42d5b 100644
--- a/hw/core/qdev.c
+++ b/hw/core/qdev.c
@@ -362,12 +362,24 @@
void qdev_init_gpio_out_named(DeviceState *dev, qemu_irq *pins,
const char *name, int n)
{
+ int i;
NamedGPIOList *gpio_list = qdev_get_named_gpio_list(dev, name);
+ char *propname = g_strdup_printf("%s[*]", name ? name : "unnamed-gpio-out");
assert(gpio_list->num_in == 0 || !name);
assert(gpio_list->num_out == 0);
gpio_list->num_out = n;
gpio_list->out = pins;
+
+ for (i = 0; i < n; ++i) {
+ memset(&pins[i], 0, sizeof(*pins));
+ object_property_add_link(OBJECT(dev), propname, TYPE_IRQ,
+ (Object **)&pins[i],
+ object_property_allow_set_link,
+ OBJ_PROP_LINK_UNREF_ON_RELEASE,
+ &error_abort);
+ }
+ g_free(propname);
}
void qdev_init_gpio_out(DeviceState *dev, qemu_irq *pins, int n)
