dt-bindings: regulator: mt6360: Add DT binding documentation

Add a devicetree binding documentation for the mt6360 regulator driver.
Signed-off-by: NGene Chen <gene_chen@richtek.com>
Link: https://lore.kernel.org/r/1598438958-26802-3-git-send-email-gene.chen.richtek@gmail.comSigned-off-by: NMark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/regulator/mt6360-regulator.yaml

+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/mt6360-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MT6360 Regulator from MediaTek Integrated
+
+maintainers:
+  - Gene Chen <gene_chen@richtek.com>
+
+description: |
+  list of regulators provided by this controller, must be named
+  after their hardware counterparts buck1/2 or ldo1/2/3/5/6/7
+
+properties:
+  compatible:
+    const: mediatek,mt6360-regulator
+
+  LDO_VIN1-supply:
+    description: Input supply phandle(s) for LDO1/2/3
+  LDO_VIN2-supply:
+    description: Input supply phandle(s) for LDO5
+  LDO_VIN3-supply:
+    description: Input supply phandle(s) for LDO6/7
+
+patternProperties:
+  "^buck[12]$":
+    $ref: "regulator.yaml#"
+
+  "^ldo[123567]$":
+    $ref: "regulator.yaml#"
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/regulator/mediatek,mt6360-regulator.h>
+    regulator {
+      compatible = "mediatek,mt6360-regulator";
+      LDO_VIN3-supply = <&BUCK2>;
+      buck1 {
+        regulator-compatible = "BUCK1";
+        regulator-name = "mt6360,buck1";
+        regulator-min-microvolt = <300000>;
+        regulator-max-microvolt = <1300000>;
+        regulator-allowed-modes = <MT6360_OPMODE_NORMAL
+             MT6360_OPMODE_LP
+             MT6360_OPMODE_ULP>;
+      };
+      BUCK2: buck2 {
+        regulator-compatible = "BUCK2";
+        regulator-name = "mt6360,buck2";
+        regulator-min-microvolt = <300000>;
+        regulator-max-microvolt = <1300000>;
+        regulator-allowed-modes = <MT6360_OPMODE_NORMAL
+             MT6360_OPMODE_LP
+             MT6360_OPMODE_ULP>;
+      };
+      ldo6 {
+        regulator-compatible = "LDO6";
+        regulator-name = "mt6360,ldo6";
+        regulator-min-microvolt = <500000>;
+        regulator-max-microvolt = <2100000>;
+        regulator-allowed-modes = <MT6360_OPMODE_NORMAL
+             MT6360_OPMODE_LP>;
+      };
+      ldo7 {
+        regulator-compatible = "LDO7";
+        regulator-name = "mt6360,ldo7";
+        regulator-min-microvolt = <500000>;
+        regulator-max-microvolt = <2100000>;
+        regulator-allowed-modes = <MT6360_OPMODE_NORMAL
+             MT6360_OPMODE_LP>;
+      };
+      ldo1 {
+        regulator-compatible = "LDO1";
+        regulator-name = "mt6360,ldo1";
+        regulator-min-microvolt = <1200000>;
+        regulator-max-microvolt = <3600000>;
+        regulator-allowed-modes = <MT6360_OPMODE_NORMAL
+             MT6360_OPMODE_LP>;
+      };
+        ldo2 {
+        regulator-compatible = "LDO2";
+        regulator-name = "mt6360,ldo2";
+        regulator-min-microvolt = <1200000>;
+        regulator-max-microvolt = <3600000>;
+        regulator-allowed-modes = <MT6360_OPMODE_NORMAL
+             MT6360_OPMODE_LP>;
+      };
+      ldo3 {
+        regulator-compatible = "LDO3";
+        regulator-name = "mt6360,ldo3";
+        regulator-min-microvolt = <1200000>;
+        regulator-max-microvolt = <3600000>;
+        regulator-allowed-modes = <MT6360_OPMODE_NORMAL
+             MT6360_OPMODE_LP>;
+      };
+      ldo5 {
+        regulator-compatible = "LDO5";
+        regulator-name = "mt6360,ldo5";
+        regulator-min-microvolt = <2700000>;
+        regulator-max-microvolt = <3600000>;
+        regulator-allowed-modes = <MT6360_OPMODE_NORMAL
+             MT6360_OPMODE_LP>;
+      };
+    };
+...