# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/regulator/rk860x-regulator.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Rockchip Rk860x voltage regulator
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maintainers:
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- Elaine Zhang <zhangqing@rock-chips.com>
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description: |
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Rockchip RK860X Digitally Programmable Buck Regulator.
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The RK860X is a step-down switching voltage regulator that
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delivers a digitally programmable output from an input voltage supply
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of 2.5V to 5.5V. The output voltage is programmed through an I2C interface.
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allOf:
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- $ref: regulator.yaml#
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properties:
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$nodename:
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pattern: "^rk860[0-3]@[0-9a-f]"
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compatible:
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const: rockchip,rk860x
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reg:
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maxItems: 1
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vin-supply:
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description: Input supply phandle
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vsel:
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minItems: 1
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maxItems: 1
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description: |
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GPIO pin used for DVS voltage selection or used to control enable status of regulator.
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rockchip,suspend-voltage-selector:
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maxItems: 1
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description: |
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The polarity of vsel pin.
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limit-microvolt:
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description: |
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The limit of voltage setting.
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required:
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- compatible
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- reg
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unevaluatedProperties: false
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examples:
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- |
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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vdd_cpu: rk8600@40{
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compatible = "rockchip,rk860x";
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reg = <0x40>;
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vin-supply = <&vcc5v0_sys>;
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regulator-compatible = "rk860x-reg";
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regulator-name = "vdd_cpu";
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regulator-min-microvolt = <712500>;
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regulator-max-microvolt = <1390000>;
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regulator-init-microvolt = <900000>;
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regulator-ramp-delay = <2300>;
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rockchip,suspend-voltage-selector = <1>;
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regulator-boot-on;
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regulator-always-on;
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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};
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