[PATCH v2 1/1] dt-bindings: firmware: imx95-scmi: Allow linux,code for protocol@81

[Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>]

BBM protocol supports a single power button, supported by driver
imx-sm-bbm-key.c. By default this is KEY_POWER, but can also be overwritten
using linux,code. Add a reference to this schema and add linux,code as a
supported property.

Signed-off-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
---
Changes in v2:
* Added default value

 .../devicetree/bindings/firmware/nxp,imx95-scmi.yaml   | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml b/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
index 1a95010a546b1..c1b7140ee0098 100644
--- a/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/nxp,imx95-scmi.yaml
@@ -12,13 +12,19 @@ maintainers:
 
 properties:
   protocol@81:
-    $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
-    unevaluatedProperties: false
+    type: object
+    allOf:
+      - $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
+      - $ref: /schemas/input/input.yaml#
+    additionalProperties: false
 
     properties:
       reg:
         const: 0x81
 
+      linux,code:
+        default: 116  # KEY_POWER
+
   protocol@84:
     $ref: '/schemas/firmware/arm,scmi.yaml#/$defs/protocol-node'
     unevaluatedProperties: false
-- 
2.34.1