[PATCH 06/13] dt-bindings: rng: add bindings for microchip mpfs rng

[<conor.dooley@xxxxxxxxxxxxx>]

From: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>

Add device tree bindings for the hardware rng device accessed via
the system services on the Microchip PolarFire SoC.

Signed-off-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
---
 .../bindings/rng/microchip,mpfs-rng.yaml      | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rng/microchip,mpfs-rng.yaml

diff --git a/Documentation/devicetree/bindings/rng/microchip,mpfs-rng.yaml b/Documentation/devicetree/bindings/rng/microchip,mpfs-rng.yaml
new file mode 100644
index 000000000000..e8ecb3538a86
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/microchip,mpfs-rng.yaml
@@ -0,0 +1,31 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/rng/microchip,mpfs-rng.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: Microchip MPFS random number generator
+
+maintainers:
+  - Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
+
+properties:
+  compatible:
+    const: microchip,polarfire-soc-rng
+
+  syscontroller:
+    maxItems: 1
+    description: name of the system controller device node
+
+required:
+  - compatible
+  - "syscontroller"
+
+additionalProperties: false
+
+examples:
+  - |
+    hwrandom: hwrandom {
+        compatible = "microchip,polarfire-soc-rng";
+        syscontroller = <&syscontroller>;
+    };
-- 
2.33.1