[PATCH v22 1/7] dt-bindings: firmware: Add TEE remoteproc service binding

[Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>]

Add a device tree binding for the TEE-based remote processor control
service implemented as an OP-TEE Trusted Application identified by
UUID 80a4c275-0a47-4905-8285-1486a9771a08.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
---
v21 updates:
- rename compatible to exactly match with the TEE UUID
- the remoteproc device driver is no more declared as a child,
  but use phandle as done for the SCMI.
- remove linaro,optee-tz bindings update are now useless.
---
 .../bindings/remoteproc/remoteproc-tee.yaml   | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/remoteproc/remoteproc-tee.yaml

diff --git a/Documentation/devicetree/bindings/remoteproc/remoteproc-tee.yaml b/Documentation/devicetree/bindings/remoteproc/remoteproc-tee.yaml
new file mode 100644
index 000000000000..498a7e590905
--- /dev/null
+++ b/Documentation/devicetree/bindings/remoteproc/remoteproc-tee.yaml
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/remoteproc-tee.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TEE Remote Processor Control Service (UUID 80a4c275-0a47-4905-8285-1486a9771a08)
+
+maintainers:
+  - Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
+
+description:
+  Node describing a TEE-based remote processor control service implemented as
+  a Trusted Application identified by UUID 80a4c275-0a47-4905-8285-1486a9771a08.
+
+  This binding is intended to define the interface for remoteproc services
+  implemented as TAs running in a TEE, and is used by the a remoteproc driver
+  to bind to such a service and control a remote processor through it.
+
+properties:
+  compatible:
+    const: 80a4c275-0a47-4905-8285-1486a9771a08
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    firmware {
+        tee_rproc: optee-rproc {
+            compatible = "80a4c275-0a47-4905-8285-1486a9771a08";
+        };
+    };
+...
-- 
2.43.0