dt-bindings: mfd: qcom,tcsr: Convert to dtschema

Convert the Qualcomm Top Control and Status Register to DT Schema.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220607133443.182468-1-krzysztof.kozlowski@linaro.org

Documentation/devicetree/bindings/mfd/qcom,tcsr.txt

-QCOM Top Control and Status Register
-
-Qualcomm devices have a set of registers that provide various control and status
-functions for their peripherals.  This node is intended to allow access to these
-registers via syscon.
-
-Required properties:
-- compatible:	Should contain:
-		"qcom,tcsr-ipq6018", "syscon", "simple-mfd" for IPQ6018
-		"qcom,tcsr-ipq8064", "syscon" for IPQ8064
-		"qcom,tcsr-apq8064", "syscon" for APQ8064
-		"qcom,tcsr-msm8660", "syscon" for MSM8660
-		"qcom,tcsr-msm8953", "syscon" for MSM8953
-		"qcom,tcsr-msm8960", "syscon" for MSM8960
-		"qcom,tcsr-msm8974", "syscon" for MSM8974
-		"qcom,tcsr-apq8084", "syscon" for APQ8084
-		"qcom,tcsr-msm8916", "syscon" for MSM8916
-- reg: Address range for TCSR registers
-
-Example:
-	tcsr: syscon@1a400000 {
-		compatible = "qcom,tcsr-msm8960", "syscon";
-		reg = <0x1a400000 0x100>;
-	};

Documentation/devicetree/bindings/mfd/qcom,tcsr.yaml

+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/qcom,tcsr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Top Control and Status Register
+
+maintainers:
+  - Bjorn Andersson <bjorn.andersson@linaro.org>
+
+description:
+  Qualcomm devices have a set of registers that provide various control and
+  status functions for their peripherals.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - qcom,tcsr-apq8064
+              - qcom,tcsr-apq8084
+              - qcom,tcsr-ipq8064
+              - qcom,tcsr-msm8660
+              - qcom,tcsr-msm8916
+              - qcom,tcsr-msm8953
+              - qcom,tcsr-msm8960
+              - qcom,tcsr-msm8974
+          - const: syscon
+      - items:
+          - const: qcom,tcsr-ipq6018
+          - const: syscon
+          - const: simple-mfd
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    syscon@1a400000 {
+        compatible = "qcom,tcsr-msm8960", "syscon";
+        reg = <0x1a400000 0x100>;
+    };