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diff --git a/Bindings/regulator/gpio-regulator.yaml b/Bindings/regulator/gpio-regulator.yaml
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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/gpio-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: GPIO controlled regulators
+
+maintainers:
+ - Liam Girdwood <lgirdwood@gmail.com>
+ - Mark Brown <broonie@kernel.org>
+
+description:
+ Any property defined as part of the core regulator binding, defined in
+ regulator.txt, can also be used.
+
+allOf:
+ - $ref: regulator.yaml#
+
+properties:
+ compatible:
+ const: regulator-gpio
+
+ regulator-name: true
+
+ enable-gpios:
+ description: GPIO to use to enable/disable the regulator.
+ Warning, the GPIO phandle flags are ignored and the GPIO polarity is
+ controlled solely by the presence of "enable-active-high" DT property.
+ This is due to compatibility with old DTs.
+ maxItems: 1
+
+ gpios:
+ description: Array of one or more GPIO pins used to select the regulator
+ voltage/current listed in "states".
+ minItems: 1
+ maxItems: 8 # Should be enough...
+
+ gpios-states:
+ description: |
+ On operating systems, that don't support reading back gpio values in
+ output mode (most notably linux), this array provides the state of GPIO
+ pins set when requesting them from the gpio controller. Systems, that are
+ capable of preserving state when requesting the lines, are free to ignore
+ this property.
+ 0: LOW
+ 1: HIGH
+ Default is LOW if nothing else is specified.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ maxItems: 8
+ items:
+ enum: [0, 1]
+ default: 0
+
+ states:
+ description: Selection of available voltages/currents provided by this
+ regulator and matching GPIO configurations to achieve them. If there are
+ no states in the "states" array, use a fixed regulator instead.
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ maxItems: 8
+ items:
+ items:
+ - description: Voltage in microvolts
+ - description: GPIO group state value
+
+ startup-delay-us:
+ description: startup time in microseconds
+
+ enable-active-high:
+ description: Polarity of "enable-gpio" GPIO is active HIGH. Default is
+ active LOW.
+ type: boolean
+
+ gpio-open-drain:
+ description:
+ GPIO is open drain type. If this property is missing then default
+ assumption is false.
+ type: boolean
+
+ regulator-type:
+ description: Specifies what is being regulated.
+ $ref: /schemas/types.yaml#/definitions/string
+ enum:
+ - voltage
+ - current
+ default: voltage
+
+ vin-supply:
+ description: Input supply phandle.
+
+required:
+ - compatible
+ - regulator-name
+ - gpios
+ - states
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ gpio-regulator {
+ compatible = "regulator-gpio";
+
+ regulator-name = "mmci-gpio-supply";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <2600000>;
+ regulator-boot-on;
+
+ enable-gpios = <&gpio0 23 0x4>;
+ gpios = <&gpio0 24 0x4
+ &gpio0 25 0x4>;
+ states = <1800000 0x3>,
+ <2200000 0x2>,
+ <2600000 0x1>,
+ <2900000 0x0>;
+
+ startup-delay-us = <100000>;
+ enable-active-high;
+ };
+...