dt-bindings: crypto: Add bindings for ZynqMP AES-GCM driver

Add documentation to describe Xilinx ZynqMP AES-GCM driver bindings. Signed-off-by: Kalyani Akula <[email protected]> Reviewed-by: Rob Herring <[email protected]> Acked-by: Michal Simek <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
comeillfoo · Feb 28, 2020 · 4c4f3f3 · 4c4f3f3
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diff --git a/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml b/Documentation/devicetree/bindings/crypto/xlnx,zynqmp-aes.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/crypto/xlnx,zynqmp-aes.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx ZynqMP AES-GCM Hardware Accelerator Device Tree Bindings
+
+maintainers:
+  - Kalyani Akula <[email protected]>
+  - Michal Simek <[email protected]>
+
+description: |
+  The ZynqMP AES-GCM hardened cryptographic accelerator is used to
+  encrypt or decrypt the data with provided key and initialization vector.
+
+properties:
+  compatible:
+    const: xlnx,zynqmp-aes
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    firmware {
+      zynqmp_firmware: zynqmp-firmware {
+        compatible = "xlnx,zynqmp-firmware";
+        method = "smc";
+        xlnx_aes: zynqmp-aes {
+          compatible = "xlnx,zynqmp-aes";
+        };
+      };
+    };
+...