[PATCH v2 5/8] hw/arm/virt: Fix devicetree warnings about the GPIO node

[Jean-Philippe Brucker]

Since the pl061 device can be used as interrupt controller, its node
should contain "interrupt-controller" and "#interrupt-cells" properties.
Fix the corresponding dt-validate warnings:

  pl061@9030000: 'interrupt-controller' is a required property
  From schema: linux/Documentation/devicetree/bindings/gpio/pl061-gpio.yaml
  pl061@9030000: '#interrupt-cells' is a required property
  From schema: linux/Documentation/devicetree/bindings/gpio/pl061-gpio.yaml

Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
---
 hw/arm/virt.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 6805c57530..10ce66c722 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -1012,6 +1012,8 @@ static void create_gpio_devices(const VirtMachineState 
*vms, int gpio,
     qemu_fdt_setprop_cell(ms->fdt, nodename, "clocks", vms->clock_phandle);
     qemu_fdt_setprop_string(ms->fdt, nodename, "clock-names", "apb_pclk");
     qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", phandle);
+    qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 2);
+    qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0);
 
     if (gpio != VIRT_GPIO) {
         /* Mark as not usable by the normal world */
-- 
2.37.3