1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index 948e2a38beed..1c0388da6721 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -183,6 +183,12 @@ properties:
             required:
               - reg
 
+  protocol@18:
+    type: object
+    properties:
+      reg:
+        const: 0x18
+
 additionalProperties: false
 
 patternProperties:
@@ -323,6 +329,10 @@ examples:
                     };
                 };
             };
+
+            scmi_powercap: protocol@18 {
+                reg = <0x18>;
+            };
         };
     };