dt-bindings: interconnect: qcom: Introduce qcom,rpm-common

The current RPM interconnect bindings are messy. Start cleaning them
up with a common include.

Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230721-topic-icc_bindings-v2-1-e33d5acbf3bd@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>

Author: konradybcio

Documentation/devicetree/bindings/interconnect/qcom,qcm2290.yaml

@@ -13,6 +13,9 @@ description: |
   The Qualcomm QCM2290 interconnect providers support adjusting the
   bandwidth requirements between the various NoC fabrics.
 
+allOf:
+  - $ref: qcom,rpm-common.yaml#
+
 properties:
   reg:
     maxItems: 1
@@ -23,9 +26,6 @@ properties:
       - qcom,qcm2290-cnoc
       - qcom,qcm2290-snoc
 
-  '#interconnect-cells':
-    const: 1
-
   clock-names:
     items:
       - const: bus
@@ -44,16 +44,16 @@ patternProperties:
       The interconnect providers do not have a separate QoS register space,
       but share parent's space.
 
+    allOf:
+      - $ref: qcom,rpm-common.yaml#
+
     properties:
       compatible:
         enum:
           - qcom,qcm2290-qup-virt
           - qcom,qcm2290-mmrt-virt
           - qcom,qcm2290-mmnrt-virt
 
-      '#interconnect-cells':
-        const: 1
-
       clock-names:
         items:
           - const: bus
@@ -66,20 +66,18 @@ patternProperties:
 
     required:
       - compatible
-      - '#interconnect-cells'
       - clock-names
       - clocks
 
-    additionalProperties: false
+    unevaluatedProperties: false
 
 required:
   - compatible
   - reg
-  - '#interconnect-cells'
   - clock-names
   - clocks
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |

Documentation/devicetree/bindings/interconnect/qcom,rpm-common.yaml

@@ -0,0 +1,28 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/interconnect/qcom,rpm-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm RPMh Network-On-Chip Interconnect
+
+maintainers:
+  - Konrad Dybcio <konradybcio@kernel.org>
+
+description:
+  RPM interconnect providers support for managing system bandwidth requirements
+  through manual requests based on either predefined values or as indicated by
+  the bus monitor hardware. Each provider node represents a NoC bus master,
+  driven by a dedicated clock source.
+
+properties:
+  '#interconnect-cells':
+    oneOf:
+      - const: 2
+      - const: 1
+        deprecated: true
+
+required:
+  - '#interconnect-cells'
+
+additionalProperties: true