[Qemu-devel] [PULL 04/19] ppc/pnv: Generate phandle for the "interrupt-parent" property

[David Gibson <david@gibson.dropbear.id.au>]

From: Cédric Le Goater <clg@kaod.org>

Devices such as the BT or serial devices require a valid
"interrupt-parent" phandle in the device tree and it is currently
empty (0x0). It was not a problem until now but since OpenFirmare
started using a recent libdft (>= 1.4.7), petitboot fails to boot the
system image with error :

   dtc_resize: fdt_open_into returned FDT_ERR_BADMAGIC

Provide a phandle for the LPC bus.

Suggested-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20190723090138.30623-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/pnv.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index 6ead82aaa7..2077452d6f 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -434,9 +434,14 @@ static void pnv_dt_isa(PnvMachineState *pnv, void *fdt)
         .fdt = fdt,
         .offset = isa_offset,
     };
+    uint32_t phandle;
 
     _FDT((fdt_setprop(fdt, isa_offset, "primary", NULL, 0)));
 
+    phandle = qemu_fdt_alloc_phandle(fdt);
+    assert(phandle > 0);
+    _FDT((fdt_setprop_cell(fdt, isa_offset, "phandle", phandle)));
+
     /* ISA devices are not necessarily parented to the ISA bus so we
      * can not use object_child_foreach() */
     qbus_walk_children(BUS(pnv->isa_bus), pnv_dt_isa_device, NULL, NULL, NULL,
-- 
2.21.0