Current dt-bindings does not contain compatible property for child mailbox node. Child mailbox nodes are used to represent destination (remote) IPI agents. The compatible property for all destination mailboxes must be required. Signed-off-by: Tanmay Shah <tanmay.shah@xxxxxxx> --- .../bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml index aeaddbf574b0..8b15a0532120 100644 --- a/Documentation/devicetree/bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml +++ b/Documentation/devicetree/bindings/mailbox/xlnx,zynqmp-ipi-mailbox.yaml @@ -74,6 +74,10 @@ patternProperties: type: object # DT nodes are json objects additionalProperties: false properties: + + compatible: + const: xlnx,zynqmp-ipi-dest-mailbox + xlnx,ipi-id: description: Remote Xilinx IPI agent ID of which the mailbox is connected to. @@ -95,6 +99,7 @@ patternProperties: - const: remote_response_region required: + - compatible - reg - reg-names - "#mbox-cells" @@ -124,6 +129,7 @@ examples: ranges; mailbox: mailbox@ff9905c0 { + compatible = "xlnx,zynqmp-ipi-dest-mailbox"; reg = <0x0 0xff9905c0 0x0 0x20>, <0x0 0xff9905e0 0x0 0x20>, <0x0 0xff990e80 0x0 0x20>, base-commit: 7d730f1bf6f39ece2d9f3ae682f12e5b593d534d -- 2.25.1