regulator: dt-bindings: lltc,ltc3676: convert to YAML

Convert Linear Technology LTC3676 8-output I2C voltage regulator IC
DT bindings to DT schema. Add missing interrupts: property as this
IC does have interrupt line and it is used in existing DTs.

Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Signed-off-by: Marek Vasut <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

Documentation/devicetree/bindings/regulator/lltc,ltc3676.yaml

···
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/lltc,ltc3676.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Linear Technology LTC3676 8-output regulators
+
+maintainers:
+  - Tim Harvey <[e-mail]>
+
+description: |
+  LTC3676 contains eight regulators, 4 switching SW1..SW4 and four LDO1..4 .
+
+properties:
+  compatible:
+    const: lltc,ltc3676
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  regulators:
+    type: object
+    additionalProperties: false
+    description: |
+      List of regulators provided by this controller, must be named
+      after their hardware counterparts (SW|LDO)[1-4].
+
+    patternProperties:
+      "^(sw[1-4]|ldo[24])$":
+        type: object
+        unevaluatedProperties: false
+        $ref: regulator.yaml#
+        description:
+          Properties for single SW or LDO regulator. Regulators SW1..SW4 can
+          regulate the feedback reference from 412.5mV to 800mV in 12.5 mV
+          steps. The output voltage thus ranges between 0.4125 * (1 + R1/R2) V
+          and 0.8 * (1 + R1/R2) V.
+          Regulators LDO1, LDO2, LDO4 have a fixed 0.725 V reference and thus
+          output 0.725 * (1 + R1/R2) V.
+          The LDO1 standby regulator can not be disabled and thus should have
+          the regulator-always-on property set.
+
+        properties:
+          lltc,fb-voltage-divider:
+            description:
+              An array of two integers containing the resistor values
+              R1 and R2 of the feedback voltage divider in ohms.
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            minItems: 2
+            maxItems: 2
+
+        required:
+          - lltc,fb-voltage-divider
+
+    properties:
+      ldo1:
+        type: object
+        unevaluatedProperties: false
+        $ref: regulator.yaml#
+        description:
+          The LDO1 standby regulator can not be disabled and thus should
+          have the regulator-always-on property set. See patternProperties
+          description above for the rest of the details.
+
+        properties:
+          lltc,fb-voltage-divider:
+            description:
+              An array of two integers containing the resistor values
+              R1 and R2 of the feedback voltage divider in ohms.
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            minItems: 2
+            maxItems: 2
+
+        required:
+          - lltc,fb-voltage-divider
+          - regulator-always-on
+
+      ldo3:
+        type: object
+        unevaluatedProperties: false
+        $ref: regulator.yaml#
+        description:
+          The LDO3 regulator is fixed to 1.8 V. See patternProperties
+          description above for the rest of the details.
+
+required:
+  - compatible
+  - reg
+  - regulators
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pmic@3c {
+            compatible = "lltc,ltc3676";
+            reg = <0x3c>;
+
+            regulators {
+                sw1_reg: sw1 {
+                    regulator-min-microvolt = <674400>;
+                    regulator-max-microvolt = <1308000>;
+                    lltc,fb-voltage-divider = <127000 200000>;
+                    regulator-ramp-delay = <7000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                sw2_reg: sw2 {
+                    regulator-min-microvolt = <1033310>;
+                    regulator-max-microvolt = <200400>;
+                    lltc,fb-voltage-divider = <301000 200000>;
+                    regulator-ramp-delay = <7000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                sw3_reg: sw3 {
+                    regulator-min-microvolt = <674400>;
+                    regulator-max-microvolt = <130800>;
+                    lltc,fb-voltage-divider = <127000 200000>;
+                    regulator-ramp-delay = <7000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                sw4_reg: sw4 {
+                    regulator-min-microvolt = <868310>;
+                    regulator-max-microvolt = <168400>;
+                    lltc,fb-voltage-divider = <221000 200000>;
+                    regulator-ramp-delay = <7000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                ldo2_reg: ldo2 {
+                    regulator-min-microvolt = <2490375>;
+                    regulator-max-microvolt = <2490375>;
+                    lltc,fb-voltage-divider = <487000 200000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+
+                ldo3_reg: ldo3 {
+                    regulator-min-microvolt = <1800000>;
+                    regulator-max-microvolt = <1800000>;
+                    regulator-boot-on;
+                };
+
+                ldo4_reg: ldo4 {
+                    regulator-min-microvolt = <3023250>;
+                    regulator-max-microvolt = <3023250>;
+                    lltc,fb-voltage-divider = <634000 200000>;
+                    regulator-boot-on;
+                    regulator-always-on;
+                };
+            };
+        };
+    };

Documentation/devicetree/bindings/regulator/ltc3676.txt

···
-Linear Technology LTC3676 8-output regulators
-
-Required properties:
-- compatible: "lltc,ltc3676"
-- reg: I2C slave address
-
-Required child node:
-- regulators: Contains eight regulator child nodes sw1, sw2, sw3, sw4,
-  ldo1, ldo2, ldo3, and ldo4, specifying the initialization data as
-  documented in Documentation/devicetree/bindings/regulator/regulator.txt.
-
-Each regulator is defined using the standard binding for regulators. The
-nodes for sw1, sw2, sw3, sw4, ldo1, ldo2 and ldo4 additionally need to specify
-the resistor values of their external feedback voltage dividers:
-
-Required properties (not on ldo3):
-- lltc,fb-voltage-divider: An array of two integers containing the resistor
-  values R1 and R2 of the feedback voltage divider in ohms.
-
-Regulators sw1, sw2, sw3, sw4 can regulate the feedback reference from:
-412.5mV to 800mV in 12.5 mV steps. The output voltage thus ranges between
-0.4125 * (1 + R1/R2) V and 0.8 * (1 + R1/R2) V.
-
-Regulators ldo1, ldo2, and ldo4 have a fixed 0.725 V reference and thus output
-0.725 * (1 + R1/R2) V. The ldo3 regulator is fixed to 1.8 V.  The ldo1 standby
-regulator can not be disabled and thus should have the regulator-always-on
-property set.
-
-Example:
-
-	ltc3676: pmic@3c {
-		compatible = "lltc,ltc3676";
-		reg = <0x3c>;
-
-		regulators {
-			sw1_reg: sw1 {
-				regulator-min-microvolt = <674400>;
-				regulator-max-microvolt = <1308000>;
-				lltc,fb-voltage-divider = <127000 200000>;
-				regulator-ramp-delay = <7000>;
-				regulator-boot-on;
-				regulator-always-on;
-			};
-
-			sw2_reg: sw2 {
-				regulator-min-microvolt = <1033310>;
-				regulator-max-microvolt = <200400>;
-				lltc,fb-voltage-divider = <301000 200000>;
-				regulator-ramp-delay = <7000>;
-				regulator-boot-on;
-				regulator-always-on;
-			};
-
-			sw3_reg: sw3 {
-				regulator-min-microvolt = <674400>;
-				regulator-max-microvolt = <130800>;
-				lltc,fb-voltage-divider = <127000 200000>;
-				regulator-ramp-delay = <7000>;
-				regulator-boot-on;
-				regulator-always-on;
-			};
-
-			sw4_reg: sw4 {
-				regulator-min-microvolt = <868310>;
-				regulator-max-microvolt = <168400>;
-				lltc,fb-voltage-divider = <221000 200000>;
-				regulator-ramp-delay = <7000>;
-				regulator-boot-on;
-				regulator-always-on;
-			};
-
-			ldo2_reg: ldo2 {
-				regulator-min-microvolt = <2490375>;
-				regulator-max-microvolt = <2490375>;
-				lltc,fb-voltage-divider = <487000 200000>;
-				regulator-boot-on;
-				regulator-always-on;
-			};
-
-			ldo3_reg: ldo3 {
-				regulator-min-microvolt = <1800000>;
-				regulator-max-microvolt = <1800000>;
-				regulator-boot-on;
-			};
-
-			ldo4_reg: ldo4 {
-				regulator-min-microvolt = <3023250>;
-				regulator-max-microvolt = <3023250>;
-				lltc,fb-voltage-divider = <634000 200000>;
-				regulator-boot-on;
-				regulator-always-on;
-			};
-		};
-	};