diff --git a/Documentation/devicetree/bindings/regulator/mediatek,mt6366-regulator.yaml b/Documentation/devicetree/bindings/regulator/mediatek,mt6366-regulator.yaml
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+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/mediatek,mt6366-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MT6366 Regulator from MediaTek Integrated
+
+maintainers:
+  - Zhiyong Tao <zhiyong.tao@mediatek.com>
+
+description: |
+  Regulator part of the MT6366 PMIC. This node should be under the PMIC's
+  device node.
+
+properties:
+  compatible:
+    const: mediatek,mt6366-regulator
+
+  vsys_ldo1-supply:
+    description: Supply for LDOs vfe28, vxo22, vcn28, vaux18, vaud28, vsim1, vusb, vbif28
+  vsys_ldo2-supply:
+    description: Supply for LDOs vio28, vmc, vmch, vsim2
+  vsys_ldo3-supply:
+    description: Supply for LDOs vcn33, vemc, vibr
+  vsys_vcore-supply:
+    description: Supply for buck regulator vcore
+  vsys_vdram1-supply:
+    description: Supply for buck regulator vdram1
+  vsys_vgpu-supply:
+    description: Supply for buck regulator vgpu
+  vsys_vmodem-supply:
+    description: Supply for buck regulator vmodem
+  vsys_vpa-supply:
+    description: Supply for buck regulator vpa
+  vsys_vproc11-supply:
+    description: Supply for buck regulator vproc11
+  vsys_vproc12-supply:
+    description: Supply for buck regulator vproc12
+  vsys_vs1-supply:
+    description: Supply for buck regulator vs1
+  vsys_vs2-supply:
+    description: Supply for buck regulator vs2
+  vs1_ldo1-supply:
+    description: Supply for LDOs vrf18, vefuse, vcn18, vio18, vm18
+  vs2_ldo1-supply:
+    description: Supply for LDOs vmddr, vdram2
+  vs2_ldo2-supply:
+    description: Supply for LDOs vrf12, va12
+  vs2_ldo3-supply:
+    description: Supply for LDOs vsram-core, vsram-gpu, vsram-others, vsram-proc11, vsram-proc12
+
+patternProperties:
+  "^v(core|dram1|gpu|modem|pa|proc1[12]|s[12])$":
+    description: Buck regulators
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+
+  "^v(a|rf)12":
+    description: LDOs with fixed 1.2V output and 0~100/10mV tuning
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+
+  "^v(aux|io|rf)18":
+    description: LDOs with fixed 1.8V output and 0~100/10mV tuning
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+
+  "^vxo22":
+    description: LDOs with fixed 2.2V output and 0~100/10mV tuning
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+
+  "^v(aud|bif|cn|fe|io)28":
+    description: LDOs with fixed 2.8V output and 0~100/10mV tuning
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+
+  "^vusb":
+    description: LDOs with fixed 3.0V output and 0~100/10mV tuning
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+
+  "^vsram-(core|gpu|others|proc1[12])$":
+    description: LDOs with variable output
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+
+  "^v(cn18|cn33|dram2|efuse|emc|ibr|m18|mc|mch|mddr|sim[12])$":
+    description: LDOs with variable output and 0~100/10mV tuning
+    type: object
+    $ref: regulator.yaml#
+    unevaluatedProperties: false
+
+required:
+  - compatible
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/regulator/mediatek,mt6397-regulator.h>
+
+    regulator {
+        compatible = "mediatek,mt6366-regulator";
+
+        vdram1 {
+            regulator-name = "pp1125_emi_vdd2";
+            regulator-min-microvolt = <1125000>;
+            regulator-max-microvolt = <1125000>;
+            regulator-ramp-delay = <12500>;
+            regulator-enable-ramp-delay = <0>;
+            regulator-allowed-modes = <MT6397_BUCK_MODE_AUTO
+                                       MT6397_BUCK_MODE_FORCE_PWM>;
+            regulator-always-on;
+        };
+
+        vproc11 {
+            regulator-name = "ppvar_dvdd_proc_bc_mt6366";
+            regulator-min-microvolt = <600000>;
+            regulator-max-microvolt = <1200000>;
+            regulator-ramp-delay = <6250>;
+            regulator-enable-ramp-delay = <200>;
+            regulator-allowed-modes = <MT6397_BUCK_MODE_AUTO
+                                       MT6397_BUCK_MODE_FORCE_PWM>;
+            regulator-always-on;
+        };
+
+        vmddr {
+            regulator-name = "pm0750_emi_vmddr";
+            regulator-min-microvolt = <700000>;
+            regulator-max-microvolt = <750000>;
+            regulator-enable-ramp-delay = <325>;
+            regulator-always-on;
+        };
+
+        vsram-proc11 {
+            regulator-name = "pp0900_dvdd_sram_bc";
+            regulator-min-microvolt = <850000>;
+            regulator-max-microvolt = <1120000>;
+            regulator-ramp-delay = <6250>;
+            regulator-enable-ramp-delay = <240>;
+            regulator-always-on;
+        };
+    };
+
+...
