regulator: dt-bindings: samsung,s2mpa01: convert to dtschema

Convert the regulators of Samsung S2MPA01 PMIC to DT schema format.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Message-Id: <20211008113931.134847-2-krzysztof.kozlowski@canonical.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/regulator/samsung,s2mpa01.txt

-Binding for Samsung S2MPA01 regulator block
-===========================================
-
-This is a part of device tree bindings for S2M family multi-function devices.
-More information can be found in bindings/mfd/sec-core.txt file.
-
-The S2MPA01 device provide buck and LDO regulators.
-
-To register these with regulator framework instantiate under main device node
-a sub-node named "regulators" with more sub-nodes for each regulator using the
-common regulator binding documented in:
- - Documentation/devicetree/bindings/regulator/regulator.txt
-
-
-Names of regulators supported by S2MPA01 device:
-	- LDOn
-		  - valid values for n are 1 to 26
-		  - Example: LDO1, LD02, LDO26
-	- BUCKn
-		  - valid values for n are 1 to 10.
-		  - Example: BUCK1, BUCK2, BUCK9
-Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
-as per the datasheet of device.
-
-
-Optional properties of buck regulator nodes under "regulators" sub-node:
- - regulator-ramp-delay: ramp delay in uV/us. May be 6250, 12500
-   (default), 25000, or 50000. May be 0 for disabling the ramp delay on
-   BUCK{1,2,3,4}.
-
-   In the absence of the regulator-ramp-delay property, the default ramp
-   delay will be used.
-
-   Note: Some bucks share the ramp rate setting i.e. same ramp value
-   will be set for a particular group of bucks so provide the same
-   regulator-ramp-delay value for them.
-   Groups sharing ramp rate:
-    - buck{1,6},
-    - buck{2,4},
-    - buck{8,9,10}.
-
-Example:
-
-	s2mpa01_pmic@66 {
-		compatible = "samsung,s2mpa01-pmic";
-		reg = <0x66>;
-
-		regulators {
-			ldo1_reg: LDO1 {
-				regulator-name = "VDD_ALIVE";
-				regulator-min-microvolt = <1000000>;
-				regulator-max-microvolt = <1000000>;
-			};
-
-			ldo2_reg: LDO2 {
-				regulator-name = "VDDQ_MMC2";
-				regulator-min-microvolt = <2800000>;
-				regulator-max-microvolt = <2800000>;
-				regulator-always-on;
-			};
-
-			buck1_reg: BUCK1 {
-				regulator-name = "vdd_mif";
-				regulator-min-microvolt = <950000>;
-				regulator-max-microvolt = <1350000>;
-				regulator-always-on;
-				regulator-boot-on;
-			};
-
-			buck2_reg: BUCK2 {
-				regulator-name = "vdd_arm";
-				regulator-min-microvolt = <950000>;
-				regulator-max-microvolt = <1350000>;
-				regulator-always-on;
-				regulator-boot-on;
-				regulator-ramp-delay = <50000>;
-			};
-		};
-	};

Documentation/devicetree/bindings/regulator/samsung,s2mpa01.yaml

+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/samsung,s2mpa01.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung S2MPA01 Power Management IC regulators
+
+maintainers:
+  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+description: |
+  This is a part of device tree bindings for S2M and S5M family of Power
+  Management IC (PMIC).
+
+  The S2MPA01 provides buck and LDO regulators.
+
+  See also Documentation/devicetree/bindings/mfd/samsung,s2mpa01.yaml for
+  additional information and example.
+
+patternProperties:
+  # 26 LDOs
+  "^LDO([1-9]|1[0-9]|2[0-6])$":
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+    description:
+      Properties for single LDO regulator.
+
+    required:
+      - regulator-name
+
+  # 10 bucks
+  "^BUCK([1-9]|10)$":
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+    description:
+      Properties for single BUCK regulator.
+
+    properties:
+      regulator-ramp-delay:
+        enum: [0, 6250, 12500, 25000, 50000]
+        default: 12500
+        description: |
+          May be 0 for disabling the ramp delay on BUCK{1,2,3,4}.
+
+          In the absence of the regulator-ramp-delay property, the default ramp
+          delay will be used.
+
+          Note: Some bucks share the ramp rate setting i.e. same ramp value
+          will be set for a particular group of bucks so provide the same
+          regulator-ramp-delay value for them.
+          Groups sharing ramp rate:
+            * buck{1,6},
+            * buck{2,4},
+            * buck{8,9,10}.
+
+    required:
+      - regulator-name
+
+additionalProperties: false