[PATCH 3/4] dt-bindings: riscv: Update YAML doc to support SiFive HiFive Unmatched board

[Yash Shah]

Add new compatible strings to the YAML DT binding document to support
SiFive's HiFive Unmatched board

Signed-off-by: Yash Shah <yash.shah at sifive.com>
---
 Documentation/devicetree/bindings/riscv/sifive.yaml | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/Documentation/devicetree/bindings/riscv/sifive.yaml b/Documentation/devicetree/bindings/riscv/sifive.yaml
index 3a8647d..ee0a239 100644
--- a/Documentation/devicetree/bindings/riscv/sifive.yaml
+++ b/Documentation/devicetree/bindings/riscv/sifive.yaml
@@ -17,11 +17,18 @@ properties:
   $nodename:
     const: '/'
   compatible:
-    items:
-      - enum:
-          - sifive,hifive-unleashed-a00
-      - const: sifive,fu540-c000
-      - const: sifive,fu540
+    oneOf:
+      - items:
+          - enum:
+              - sifive,hifive-unleashed-a00
+          - const: sifive,fu540-c000
+          - const: sifive,fu540
+
+      - items:
+          - enum:
+              - sifive,hifive-unmatched-a00
+          - const: sifive,fu740-c000
+          - const: sifive,fu740
 
 additionalProperties: true
 
-- 
2.7.4