dt-bindings: opp: qcom-opp: Convert to DT schema

Convert qcom-opp.txt to DT schema format.
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

Documentation/devicetree/bindings/opp/opp-v2-qcom-level.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/opp/opp-v2-qcom-level.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm OPP bindings to describe OPP nodes.
+
+maintainers:
+  - Niklas Cassel <nks@flawful.org>
+
+allOf:
+  - $ref: opp-v2-base.yaml#
+
+properties:
+  compatible:
+    const: operating-points-v2-qcom-level
+
+patternProperties:
+  '^opp-?[0-9]+$':
+    type: object
+
+    properties:
+      opp-level: true
+
+      qcom,opp-fuse-level:
+        description: |
+          A positive value representing the fuse corner/level associated with
+          this OPP node. Sometimes several corners/levels shares a certain fuse
+          corner/level. A fuse corner/level contains e.g. ref uV, min uV,
+          and max uV.
+        $ref: /schemas/types.yaml#/definitions/uint32
+
+    required:
+      - opp-level
+      - qcom,opp-fuse-level
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    cpr_opp_table: opp-table-cpr {
+        compatible = "operating-points-v2-qcom-level";
+
+        cpr_opp1: opp1 {
+            opp-level = <1>;
+            qcom,opp-fuse-level = <1>;
+        };
+        cpr_opp2: opp2 {
+            opp-level = <2>;
+            qcom,opp-fuse-level = <2>;
+        };
+        cpr_opp3: opp3 {
+            opp-level = <3>;
+            qcom,opp-fuse-level = <3>;
+        };
+    };

Documentation/devicetree/bindings/opp/qcom-opp.txt

-Qualcomm OPP bindings to describe OPP nodes
-
-The bindings are based on top of the operating-points-v2 bindings
-described in Documentation/devicetree/bindings/opp/opp-v2-base.yaml
-Additional properties are described below.
-
-* OPP Table Node
-
-Required properties:
-- compatible: Allow OPPs to express their compatibility. It should be:
-  "operating-points-v2-qcom-level"
-
-* OPP Node
-
-Required properties:
-- qcom,opp-fuse-level: A positive value representing the fuse corner/level
-  associated with this OPP node. Sometimes several corners/levels shares
-  a certain fuse corner/level. A fuse corner/level contains e.g. ref uV,
-  min uV, and max uV.