# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mfd/hisilicon,hi6421-spmi-pmic.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: HiSilicon 6421v600 SPMI PMIC
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maintainers:
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- Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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description: |
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HiSilicon 6421v600 should be connected inside a MIPI System Power Management
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(SPMI) bus. It provides interrupts and power supply.
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The GPIO and interrupt settings are represented as part of the top-level PMIC
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node.
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The SPMI controller part is provided by
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drivers/staging/hikey9xx/hisilicon,hisi-spmi-controller.yaml.
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properties:
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$nodename:
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pattern: "pmic@[0-9a-f]"
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compatible:
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const: hisilicon,hi6421v600-spmi
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reg:
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maxItems: 1
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'#interrupt-cells':
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const: 2
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interrupt-controller:
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description:
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Identify that the PMIC is capable of behaving as an interrupt controller.
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gpios:
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maxItems: 1
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regulators:
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type: object
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properties:
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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patternProperties:
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'^ldo[0-9]+@[0-9a-f]$':
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type: object
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$ref: "/schemas/regulator/regulator.yaml#"
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properties:
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reg:
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description: Enable register.
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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vsel-reg:
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description: Voltage selector register.
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enable-mask:
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description: Bitmask used to enable the regulator.
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voltage-table:
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description: Table with the selector items for the voltage regulator.
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minItems: 2
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maxItems: 16
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off-on-delay-us:
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description: Time required for changing state to enabled in microseconds.
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startup-delay-us:
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description: Startup time in microseconds.
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idle-mode-mask:
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description: Bitmask used to put the regulator on idle mode.
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eco-microamp:
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description: Maximum current while on idle mode.
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required:
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- reg
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- vsel-reg
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- enable-mask
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- voltage-table
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- off-on-delay-us
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- startup-delay-us
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required:
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- compatible
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- reg
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- regulators
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examples:
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- |
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/* pmic properties */
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pmic: pmic@0 {
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compatible = "hisilicon,hi6421-spmi";
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reg = <0 0>;
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#interrupt-cells = <2>;
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interrupt-controller;
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gpios = <&gpio28 0 0>;
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regulators {
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#address-cells = <1>;
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#size-cells = <0>;
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ldo3: ldo3@16 {
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reg = <0x16>;
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vsel-reg = <0x51>;
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regulator-name = "ldo3";
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regulator-min-microvolt = <1500000>;
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regulator-max-microvolt = <2000000>;
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regulator-boot-on;
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enable-mask = <0x01>;
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voltage-table = <1500000>, <1550000>, <1600000>, <1650000>,
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<1700000>, <1725000>, <1750000>, <1775000>,
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<1800000>, <1825000>, <1850000>, <1875000>,
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<1900000>, <1925000>, <1950000>, <2000000>;
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off-on-delay-us = <20000>;
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startup-delay-us = <120>;
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};
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ldo4: ldo4@17 { /* 40 PIN */
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reg = <0x17>;
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vsel-reg = <0x52>;
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regulator-name = "ldo4";
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regulator-min-microvolt = <1725000>;
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regulator-max-microvolt = <1900000>;
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regulator-boot-on;
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enable-mask = <0x01>;
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idle-mode-mask = <0x10>;
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eco-microamp = <10000>;
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hi6421-vsel = <0x52 0x07>;
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voltage-table = <1725000>, <1750000>, <1775000>, <1800000>,
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<1825000>, <1850000>, <1875000>, <1900000>;
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off-on-delay-us = <20000>;
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startup-delay-us = <120>;
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};
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};
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};
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