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regulator: bindings: add document bindings for mpq7920 

Add device tree binding information for mpq7920 regulator driver.
Example bindings for mpq7920 are added.

Signed-off-by: Saravanan Sekar <sravanhome@gmail.com>
Link: https://lore.kernel.org/r/20200108131234.24128-3-sravanhome@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
alistair/sensors
Saravanan Sekar 2020-01-08 14:12:32 +01:00 committed by Mark Brown
parent c66f1cbad5
commit f5fa59a61e
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Documentation/devicetree/bindings/regulator/mps,mpq7920.yaml 100644
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/mps,mpq7920.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Monolithic Power System MPQ7920 PMIC
maintainers:
- Saravanan Sekar <sravanhome@gmail.com>
properties:
$nodename:
pattern: "pmic@[0-9a-f]{1,2}"
compatible:
enum:
- mps,mpq7920
reg:
maxItems: 1
regulators:
type: object
description: |
list of regulators provided by this controller, must be named
after their hardware counterparts BUCK[1-4], one LDORTC, and LDO[2-5]
mps,switch-freq:
description: |
switching frequency must be one of following corresponding value
1.1MHz, 1.65MHz, 2.2MHz, 2.75MHz
$ref: "/schemas/types.yaml#/definitions/uint8"
enum: [ 0, 1, 2, 3 ]
default: 2
buck1:
type: object
$ref: "regulator.yaml#"
description: |
4.5A DC-DC step down converter
mps,buck-softstart:
$ref: "/schemas/types.yaml#/definitions/uint8"
enum: [ 0, 1, 2, 3 ]
default: 1
description: |
defines the soft start time of this buck, must be one of the following
corresponding values 150us, 300us, 610us, 920us
mps,buck-phase-delay:
$ref: "/schemas/types.yaml#/definitions/uint8"
enum: [ 0, 1, 2, 3 ]
default: 0
description: |
defines the phase delay of this buck, must be one of the following
corresponding values 0deg, 90deg, 180deg, 270deg
mps,buck-ovp-disable:
type: boolean
description: |
disables over voltage protection of this buck
buck2:
type: object
$ref: "regulator.yaml#"
description: |
2.5A DC-DC step down converter
mps,buck-softstart:
description: |
defines the soft start time of this buck, must be one of the following
corresponding values 150us, 300us, 610us, 920us
$ref: "/schemas/types.yaml#/definitions/uint8"
enum: [ 0, 1, 2, 3 ]
default: 1
mps,buck-phase-delay:
description: |
defines the phase delay of this buck, must be one of the following
corresponding values 0deg, 90deg, 180deg, 270deg
$ref: "/schemas/types.yaml#/definitions/uint8"
enum: [ 0, 1, 2, 3 ]
default: 0
mps,buck-ovp-disable:
description: |
disables over voltage protection of this buck
type: boolean
buck3:
type: object
$ref: "regulator.yaml#"
description: |
4.5A DC-DC step down converter
mps,buck-softstart:
description: |
defines the soft start time of this buck, must be one of the following
corresponding values 150us, 300us, 610us, 920us
$ref: "/schemas/types.yaml#/definitions/uint8"
enum: [ 0, 1, 2, 3 ]
default: 1
mps,buck-phase-delay:
description: |
defines the phase delay of this buck, must be one of the following
corresponding values 0deg, 90deg, 180deg, 270deg
$ref: "/schemas/types.yaml#/definitions/uint8"
enum: [ 0, 1, 2, 3 ]
default: 1
mps,buck-ovp-disable:
description: |
disables over voltage protection of this buck
type: boolean
buck4:
type: object
$ref: "regulator.yaml#"
description: |
2.5A DC-DC step down converter
mps,buck-softstart:
description: |
defines the soft start time of this buck, must be one of the following
corresponding values 150us, 300us, 610us, 920us
$ref: "/schemas/types.yaml#/definitions/uint8"
enum: [ 0, 1, 2, 3 ]
default: 1
mps,buck-phase-delay:
description: |
defines the phase delay of this buck, must be one of the following
corresponding values 0deg, 90deg, 180deg, 270deg
$ref: "/schemas/types.yaml#/definitions/uint8"
enum: [ 0, 1, 2, 3 ]
default: 1
mps,buck-ovp-disable:
description: |
disables over voltage protection of this buck
type: boolean
ldortc:
$ref: "regulator.yaml#"
description: |
regulator with 0.65V-3.5875V for RTC, always enabled
ldo2:
$ref: "regulator.yaml#"
description: |
regulator with 0.65V-3.5875V
ldo3:
$ref: "regulator.yaml#"
description: |
regulator with 0.65V-3.5875V
ldo4:
$ref: "regulator.yaml#"
description: |
regulator with 0.65V-3.5875V
ldo5:
$ref: "regulator.yaml#"
description: |
regulator with 0.65V-3.5875V
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@69 {
compatible = "mps,mpq7920";
reg = <0x69>;
regulators {
mps,switch-freq = <1>;
buck1 {
regulator-name = "buck1";
regulator-min-microvolt = <400000>;
regulator-max-microvolt = <3587500>;
regulator-min-microamp = <460000>;
regulator-max-microamp = <7600000>;
regulator-boot-on;
mps,buck-ovp-disable;
mps,buck-phase-delay = <2>;
mps,buck-softstart = <1>;
};
ldo2 {
regulator-name = "ldo2";
regulator-min-microvolt = <650000>;
regulator-max-microvolt = <3587500>;
};
};
};
};
...