linux-kernel - [PATCH v5 3/7] dt-bindings: remoteproc: Add processor identifier property

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Message-ID: <20240521081001.2989417-4-arnaud.pouliquen@foss.st.com>
Date: Tue, 21 May 2024 10:09:57 +0200
From: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier
	<mathieu.poirier@...aro.org>
CC: <linux-remoteproc@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <arnaud.pouliquen@...s.st.com>
Subject: [PATCH v5 3/7] dt-bindings: remoteproc: Add processor identifier property

Add the "st,proc-id" property allowing to identify the remote processor.
This ID is used to define an unique ID, common between Linux, U-boot and
OP-TEE to identify a coprocessor.
This ID will be used in request to OP-TEE remoteproc Trusted Application
to specify the remote processor.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@...s.st.com>
---
 .../devicetree/bindings/remoteproc/st,stm32-rproc.yaml     | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
index 36ea54016b76..409123cd4667 100644
--- a/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
+++ b/Documentation/devicetree/bindings/remoteproc/st,stm32-rproc.yaml
@@ -48,6 +48,10 @@ properties:
           - description: The offset of the hold boot setting register
           - description: The field mask of the hold boot
 
+  st,proc-id:
+    description: remote processor identifier
+    $ref: /schemas/types.yaml#/definitions/uint32
+
   st,syscfg-tz:
     deprecated: true
     description:
@@ -182,6 +186,8 @@ allOf:
         st,syscfg-holdboot: false
         reset-names: false
         resets: false
+      required:
+        - st,proc-id
 
 additionalProperties: false
 
@@ -220,6 +226,7 @@ examples:
       reg = <0x10000000 0x40000>,
             <0x30000000 0x40000>,
             <0x38000000 0x10000>;
+      st,proc-id = <0>;
       st,syscfg-rsc-tbl = <&tamp 0x144 0xFFFFFFFF>;
       st,syscfg-m4-state = <&tamp 0x148 0xFFFFFFFF>;
     };
-- 
2.25.1