dt-bindings: remoteproc: qcom,smd-edge: define re-usable schema for smd-edge

'smd-edge' property appears in multiple bindings, so split it into one
place which can be re-used.  This reduces code duplication and adds
strict schema matching for smd-edge nodes (instead of just
"type:object").

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220517070113.18023-9-krzysztof.kozlowski@linaro.org

Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml

@@ -148,7 +148,7 @@ properties:
       three offsets within syscon for q6, modem and nc halt registers.
 
   smd-edge:
-    type: object
+    $ref: /schemas/remoteproc/qcom,smd-edge.yaml#
     description:
       Qualcomm Shared Memory subnode which represents communication edge,
       channels and devices related to the ADSP.

Documentation/devicetree/bindings/remoteproc/qcom,smd-edge.yaml

@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,smd-edge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SMD Edge communication channel nodes
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+  Qualcomm SMD subnode represents a remote subsystem or a remote processor of
+  some sort - or in SMD language an "edge". The name of the edges are not
+  important.
+  See also Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml
+
+properties:
+  $nodename:
+    const: "smd-edge"
+
+  interrupts:
+    maxItems: 1
+
+  label:
+    description:
+      Name of the edge, used for debugging and identification purposes. The
+      node name will be used if this is not present.
+
+  mboxes:
+    maxItems: 1
+    description:
+      Reference to the mailbox representing the outgoing doorbell in APCS for
+      this client.
+
+  qcom,ipc:
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    items:
+      - items:
+          - description: phandle to a syscon node representing the APCS registers
+          - description: u32 representing offset to the register within the syscon
+          - description: u32 representing the ipc bit within the register
+    description:
+      Three entries specifying the outgoing ipc bit used for signaling the
+      remote processor.
+
+  qcom,smd-edge:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      The identifier of the remote processor in the smd channel allocation
+      table.
+
+  qcom,remote-pid:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      The identifier for the remote processor as known by the rest of the
+      system.
+
+required:
+  - interrupts
+  - qcom,smd-edge
+
+oneOf:
+  - required:
+      - mboxes
+  - required:
+      - qcom,ipc
+
+additionalProperties: true
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/mailbox/qcom-ipcc.h>
+
+    remoteproc {
+        // ...
+
+        smd-edge {
+            interrupts = <GIC_SPI 156 IRQ_TYPE_EDGE_RISING>;
+
+            qcom,ipc = <&apcs 8 8>;
+            qcom,smd-edge = <1>;
+        };
+    };

Documentation/devicetree/bindings/soc/qcom/qcom,smd.yaml

@@ -28,44 +28,6 @@ patternProperties:
       edges are not important.
 
     properties:
-      interrupts:
-        maxItems: 1
-
-      label:
-        $ref: /schemas/types.yaml#/definitions/string
-        description:
-          Name of the edge, used for debugging and identification purposes. The
-          node name will be used if this is not present.
-
-      mboxes:
-        maxItems: 1
-        description:
-          Reference to the mailbox representing the outgoing doorbell in APCS for
-          this client.
-
-      qcom,ipc:
-        $ref: /schemas/types.yaml#/definitions/phandle-array
-        items:
-          - items:
-              - description: phandle to a syscon node representing the APCS registers
-              - description: u32 representing offset to the register within the syscon
-              - description: u32 representing the ipc bit within the register
-        description:
-          Three entries specifying the outgoing ipc bit used for signaling the
-          remote processor.
-
-      qcom,smd-edge:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        description:
-          The identifier of the remote processor in the smd channel allocation
-          table.
-
-      qcom,remote-pid:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        description:
-          The identifier for the remote processor as known by the rest of the
-          system.
-
       rpm-requests:
         type: object
         description:
@@ -89,17 +51,7 @@ patternProperties:
 
         additionalProperties: true
 
-    required:
+    unevaluatedProperties: false
-      - interrupts
-      - qcom,smd-edge
-
-    oneOf:
-      - required:
-          - mboxes
-      - required:
-          - qcom,ipc
-
-    additionalProperties: false
 
 required:
   - compatible