regulator: dt-bindings: promote infineon buck converters to their own binding

These devices are regulators may need to make use of the common
regulator properties, but these are not permitted while only documented
in trivial-devices.yaml
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240223-blabber-obnoxious-353e519541a6@spud
[groeck: Dropped empty line at end of patch]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

Documentation/devicetree/bindings/regulator/infineon,ir38060.yaml

+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/infineon,ir38060.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Infineon Buck Regulators with PMBUS interfaces
+
+maintainers:
+  - Not Me.
+
+allOf:
+  - $ref: regulator.yaml#
+
+properties:
+  compatible:
+    enum:
+      - infineon,ir38060
+      - infineon,ir38064
+      - infineon,ir38164
+      - infineon,ir38263
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      regulator@34 {
+        compatible = "infineon,ir38060";
+        reg = <0x34>;
+
+        regulator-min-microvolt = <437500>;
+        regulator-max-microvolt = <1387500>;
+      };
+    };

Documentation/devicetree/bindings/trivial-devices.yaml

@@ -143,14 +143,6 @@ properties:
           - ibm,cffps2
             # Infineon IR36021 digital POL buck controller
           - infineon,ir36021
-            # Infineon IR38060 Voltage Regulator
-          - infineon,ir38060
-            # Infineon IR38064 Voltage Regulator
-          - infineon,ir38064
-            # Infineon IR38164 Voltage Regulator
-          - infineon,ir38164
-            # Infineon IR38263 Voltage Regulator
-          - infineon,ir38263
             # Infineon IRPS5401 Voltage Regulator (PMIC)
           - infineon,irps5401
             # Infineon TLV493D-A1B6 I2C 3D Magnetic Sensor