dt-bindings: clock: qcom,rpmcc: convert to dtschema

Convert the Qualcomm RPM Clock Controller bindings to DT schema and
include it in parent's schema (SMD RPM).
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/20220401201035.189106-10-krzysztof.kozlowski@linaro.org

Documentation/devicetree/bindings/clock/qcom,rpmcc.txt

-Qualcomm RPM Clock Controller Binding
-------------------------------------------------
-The RPM is a dedicated hardware engine for managing the shared
-SoC resources in order to keep the lowest power profile. It
-communicates with other hardware subsystems via shared memory
-and accepts clock requests, aggregates the requests and turns
-the clocks on/off or scales them on demand.
-
-Required properties :
-- compatible : shall contain only one of the following. The generic
-               compatible "qcom,rpmcc" should be also included.
-
-			"qcom,rpmcc-mdm9607", "qcom,rpmcc"
-			"qcom,rpmcc-msm8660", "qcom,rpmcc"
-			"qcom,rpmcc-apq8060", "qcom,rpmcc"
-			"qcom,rpmcc-msm8226", "qcom,rpmcc"
-			"qcom,rpmcc-msm8916", "qcom,rpmcc"
-			"qcom,rpmcc-msm8936", "qcom,rpmcc"
-			"qcom,rpmcc-msm8953", "qcom,rpmcc"
-			"qcom,rpmcc-msm8974", "qcom,rpmcc"
-			"qcom,rpmcc-msm8976", "qcom,rpmcc"
-			"qcom,rpmcc-apq8064", "qcom,rpmcc"
-			"qcom,rpmcc-ipq806x", "qcom,rpmcc"
-			"qcom,rpmcc-msm8992",·"qcom,rpmcc"
-			"qcom,rpmcc-msm8994",·"qcom,rpmcc"
-			"qcom,rpmcc-msm8996", "qcom,rpmcc"
-			"qcom,rpmcc-msm8998", "qcom,rpmcc"
-			"qcom,rpmcc-qcm2290", "qcom,rpmcc"
-			"qcom,rpmcc-qcs404", "qcom,rpmcc"
-			"qcom,rpmcc-sdm660", "qcom,rpmcc"
-			"qcom,rpmcc-sm6115", "qcom,rpmcc"
-			"qcom,rpmcc-sm6125", "qcom,rpmcc"
-
-- #clock-cells : shall contain 1
-
-The clock enumerators are defined in <dt-bindings/clock/qcom,rpmcc.h>
-and come in pairs: FOO_CLK followed by FOO_A_CLK. The latter clock
-is an "active" clock, which means that the consumer only care that the
-clock is available when the apps CPU subsystem is active, i.e. not
-suspended or in deep idle. If it is important that the clock keeps running
-during system suspend, you need to specify the non-active clock, the one
-not containing *_A_* in the enumerator name.
-
-Example:
-	smd {
-		compatible = "qcom,smd";
-
-		rpm {
-			interrupts = <0 168 1>;
-			qcom,ipc = <&apcs 8 0>;
-			qcom,smd-edge = <15>;
-
-			rpm_requests {
-				compatible = "qcom,rpm-msm8916";
-				qcom,smd-channels = "rpm_requests";
-
-				rpmcc: clock-controller {
-					compatible = "qcom,rpmcc-msm8916", "qcom,rpmcc";
-					#clock-cells = <1>;
-				};
-			};
-		};
-	};

Documentation/devicetree/bindings/clock/qcom,rpmcc.yaml

+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/qcom,rpmcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm RPM Clock Controller
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+  - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
+
+description: |
+  The clock enumerators are defined in <dt-bindings/clock/qcom,rpmcc.h> and
+  come in pairs:: FOO_CLK followed by FOO_A_CLK. The latter clock is
+  an "active" clock, which means that the consumer only care that the clock is
+  available when the apps CPU subsystem is active, i.e. not suspended or in
+  deep idle. If it is important that the clock keeps running during system
+  suspend, you need to specify the non-active clock, the one not containing
+  *_A_* in the enumerator name.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - qcom,rpmcc-apq8060
+          - qcom,rpmcc-apq8064
+          - qcom,rpmcc-ipq806x
+          - qcom,rpmcc-mdm9607
+          - qcom,rpmcc-msm8226
+          - qcom,rpmcc-msm8660
+          - qcom,rpmcc-msm8916
+          - qcom,rpmcc-msm8936
+          - qcom,rpmcc-msm8953
+          - qcom,rpmcc-msm8974
+          - qcom,rpmcc-msm8976
+          - qcom,rpmcc-msm8992
+          - qcom,rpmcc-msm8994
+          - qcom,rpmcc-msm8996
+          - qcom,rpmcc-msm8998
+          - qcom,rpmcc-qcm2290
+          - qcom,rpmcc-qcs404
+          - qcom,rpmcc-sdm660
+          - qcom,rpmcc-sm6115
+          - qcom,rpmcc-sm6125
+      - const: qcom,rpmcc
+
+  '#clock-cells':
+    const: 1
+
+required:
+  - compatible
+  - '#clock-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    rpm {
+        rpm-requests {
+            compatible = "qcom,rpm-msm8916";
+            qcom,smd-channels = "rpm_requests";
+
+            clock-controller {
+                compatible = "qcom,rpmcc-msm8916", "qcom,rpmcc";
+                #clock-cells = <1>;
+            };
+        };
+    };

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

@@ -45,6 +45,10 @@ properties:
       - qcom,rpm-qcm2290
       - qcom,rpm-qcs404
 
+  clock-controller:
+    $ref: /schemas/clock/qcom,rpmcc.yaml#
+    unevaluatedProperties: false
+
   qcom,smd-channels:
     $ref: /schemas/types.yaml#/definitions/string-array
     description: Channel name used for the RPM communication