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-rw-r--r--Documentation/devicetree/bindings/mailbox/fsl,mu.yaml3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
index 7ed096360be2..15cef82cd356 100644
--- a/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
+++ b/Documentation/devicetree/bindings/mailbox/fsl,mu.yaml
@@ -72,6 +72,9 @@ properties:
description: boolean, if present, means it is for side B MU.
type: boolean
+ power-domains:
+ maxItems: 1
+
required:
- compatible
- reg