Document the Axis ARTPEC-9 SoC binding and the alfred board
which uses ARTPEC-9 SoC.

Signed-off-by: Ravi Patel <ravi.patel@samsung.com>
---
 Documentation/devicetree/bindings/arm/axis.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/axis.yaml b/Documentation/devicetree/bindings/arm/axis.yaml
index 63e9aca85db7..3062901196a6 100644
--- a/Documentation/devicetree/bindings/arm/axis.yaml
+++ b/Documentation/devicetree/bindings/arm/axis.yaml
@@ -31,6 +31,12 @@ properties:
               - axis,artpec8-grizzly
           - const: axis,artpec8
 
+      - description: Axis ARTPEC-9 SoC board
+        items:
+          - enum:
+              - axis,artpec9-alfred
+          - const: axis,artpec9
+
 additionalProperties: true
 
 ...
-- 
2.17.1

Acked-by: Conor Dooley <conor.dooley@microchip.com>