[xen staging] xen/arm: vITS: add #msi-cells property

[patchbot@xxxxxxx]

commit 2dbb61001b335c8f980b39ef9fa05fe5b2bca3e6
Author:     Stewart Hildebrand <stewart.hildebrand@xxxxxxx>
AuthorDate: Fri Aug 2 14:26:52 2024 -0400
Commit:     Julien Grall <jgrall@xxxxxxxxxx>
CommitDate: Tue Aug 6 19:11:50 2024 +0100

    xen/arm: vITS: add #msi-cells property
    
    Non-PCI platform devices may use the ITS. Dom0 Linux drivers for such
    devices are failing to register IRQs due to a missing #msi-cells
    property. Add the missing #msi-cells property.
    
    Signed-off-by: Stewart Hildebrand <stewart.hildebrand@xxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    Reviewed-by: Rahul Singh <rahul.singh@xxxxxxx>
---
 xen/arch/arm/gic-v3-its.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/xen/arch/arm/gic-v3-its.c b/xen/arch/arm/gic-v3-its.c
index 8afcd9783b..55bed3fe87 100644
--- a/xen/arch/arm/gic-v3-its.c
+++ b/xen/arch/arm/gic-v3-its.c
@@ -951,6 +951,10 @@ int gicv3_its_make_hwdom_dt_nodes(const struct domain *d,
         if ( res )
             return res;
 
+        res = fdt_property_cell(fdt, "#msi-cells", 1);
+        if ( res )
+            return res;
+
         if ( its->phandle )
         {
             res = fdt_property_cell(fdt, "phandle", its->phandle);
--
generated by git-patchbot for /home/xen/git/xen.git#staging