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