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

'glink-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 glink-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/20220517070113.18023-8-krzysztof.kozlowski@linaro.org

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

@@ -154,7 +154,7 @@ properties:
       channels and devices related to the ADSP.
 
   glink-edge:
-    type: object
+    $ref: /schemas/remoteproc/qcom,glink-edge.yaml#
     description:
       Qualcomm G-Link subnode which represents communication edge, channels
       and devices related to the ADSP.

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

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/qcom,glink-edge.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm G-Link Edge communication channel nodes
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+  Qualcomm G-Link subnode represents communication edge, channels and devices
+  related to the remote processor.
+
+properties:
+  $nodename:
+    const: "glink-edge"
+
+  apr:
+    $ref: /schemas/soc/qcom/qcom,apr.yaml#
+    description:
+      Qualcomm APR/GPR (Asynchronous/Generic Packet Router)
+
+  fastrpc:
+    type: object
+    description:
+      See Documentation/devicetree/bindings/misc/qcom,fastrpc.txt
+
+  interrupts:
+    maxItems: 1
+
+  label:
+    description: The names of the state bits used for SMP2P output
+
+  mboxes:
+    maxItems: 1
+
+  qcom,remote-pid:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description:
+      ID of the shared memory used by GLINK for communication with remote
+      processor.
+
+required:
+  - interrupts
+  - label
+  - mboxes
+  - qcom,remote-pid
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/mailbox/qcom-ipcc.h>
+
+    remoteproc@8a00000 {
+        reg = <0x08a00000 0x10000>;
+        // ...
+
+        glink-edge {
+            interrupts-extended = <&ipcc IPCC_CLIENT_WPSS
+                                         IPCC_MPROC_SIGNAL_GLINK_QMP
+                                         IRQ_TYPE_EDGE_RISING>;
+            mboxes = <&ipcc IPCC_CLIENT_WPSS
+                            IPCC_MPROC_SIGNAL_GLINK_QMP>;
+
+            label = "wpss";
+            qcom,remote-pid = <13>;
+        };
+    };

Documentation/devicetree/bindings/remoteproc/qcom,sc7280-wpss-pil.yaml

@@ -106,8 +106,8 @@ properties:
     const: stop
 
   glink-edge:
-    type: object
-    description: |
+    $ref: qcom,glink-edge.yaml#
+    description:
       Qualcomm G-Link subnode which represents communication edge, channels
       and devices related to the ADSP.
 
@@ -121,21 +121,11 @@ properties:
           - description: Mailbox for communication between APPS and WPSS
 
       label:
-        description: The names of the state bits used for SMP2P output
         items:
           - const: wpss
 
-      qcom,remote-pid:
-        $ref: /schemas/types.yaml#/definitions/uint32
-        description: ID of the shared memory used by GLINK for communication with WPSS
-
-    required:
-      - interrupts
-      - mboxes
-      - label
-      - qcom,remote-pid
-
-    additionalProperties: false
+      apr: false
+      fastrpc: false
 
 required:
   - compatible