# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/st,stpmic1.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectonics STPMIC1 Power Management IC bindings
description: STMicroelectronics STPMIC1 Power Management IC
maintainers:
- pascal Paillet <p.paillet@st.com>
properties:
compatible:
const: st,stpmic1
reg:
const: 0x33
interrupts:
maxItems: 1
"#interrupt-cells":
const: 2
interrupt-controller: true
onkey:
type: object
$ref: ../input/input.yaml
properties:
compatible:
const: st,stpmic1-onkey
interrupts:
items:
- description: onkey-falling, happens when onkey is pressed. IT_PONKEY_F of pmic
- description: onkey-rising, happens when onkey is released. IT_PONKEY_R of pmic
interrupt-names:
items:
- const: onkey-falling
- const: onkey-rising
st,onkey-clear-cc-flag:
description: onkey is able power on after an over-current shutdown event.
$ref: /schemas/types.yaml#/definitions/flag
st,onkey-pu-inactive:
description: onkey pull up is not active
$ref: /schemas/types.yaml#/definitions/flag
power-off-time-sec:
minimum: 1
maximum: 16
required:
- compatible
- interrupts
- interrupt-names
additionalProperties: false
watchdog:
type: object
$ref: ../watchdog/watchdog.yaml
properties:
compatible:
const: st,stpmic1-wdt
timeout-sec: true
required:
- compatible
additionalProperties: false
regulators:
type: object
description: |
Available Regulators in STPMIC1 device are:
- buck1 for Buck BUCK1
- buck2 for Buck BUCK2
- buck3 for Buck BUCK3
- buck4 for Buck BUCK4
- ldo1 for LDO LDO1
- ldo2 for LDO LDO2
- ldo3 for LDO LDO3
- ldo4 for LDO LDO4
- ldo5 for LDO LDO5
- ldo6 for LDO LDO6
- vref_ddr for LDO Vref DDR
- boost for Buck BOOST
- pwr_sw1 for VBUS_OTG switch
- pwr_sw2 for SW_OUT switch
Switches are fixed voltage regulators with only enable/disable capability.
properties:
compatible:
const: st,stpmic1-regulators
ldo3:
type: object
properties:
interrupts:
maxItems: 1
st,mask-reset:
description: mask reset for this regulator,
the regulator configuration is maintained during pmic reset.
$ref: /schemas/types.yaml#/definitions/flag
regulator-name: true
regulator-boot-on: true
regulator-always-on: true
regulator-min-microvolt: true
regulator-max-microvolt: true
regulator-allow-bypass: true
regulator-over-current-protection: true
additionalProperties: false
ldo4:
type: object
properties:
interrupts:
maxItems: 1
st,mask-reset:
description: mask reset for this regulator,
the regulator configuration is maintained during pmic reset.
$ref: /schemas/types.yaml#/definitions/flag
regulator-name: true
regulator-boot-on: true
regulator-always-on: true
regulator-over-current-protection: true
additionalProperties: false
vref_ddr:
type: object
properties:
interrupts:
maxItems: 1
st,mask-reset:
description: mask reset for this regulator,
the regulator configuration is maintained during pmic reset.
$ref: /schemas/types.yaml#/definitions/flag
regulator-name: true
regulator-boot-on: true
regulator-always-on: true
additionalProperties: false
boost:
type: object
properties:
interrupts:
maxItems: 1
st,mask-reset:
description: mask reset for this regulator,
the regulator configuration is maintained during pmic reset.
$ref: /schemas/types.yaml#/definitions/flag
regulator-name: true
regulator-boot-on: true
regulator-always-on: true
regulator-over-current-protection: true
additionalProperties: false
patternProperties:
"^(buck[1-4]|ldo[1-6]|boost|pwr_sw[1-2])-supply$":
description: STPMIC1 voltage regulators supplies
"^(buck[1-4]|ldo[1-6]|boost|vref_ddr|pwr_sw[1-2])$":
$ref: ../regulator/regulator.yaml
"^ldo[1-2,5-6]$":
type: object
properties:
interrupts:
maxItems: 1
st,mask-reset:
description: mask reset for this regulator,
the regulator configuration is maintained during pmic reset.
$ref: /schemas/types.yaml#/definitions/flag
regulator-name: true
regulator-boot-on: true
regulator-always-on: true
regulator-min-microvolt: true
regulator-max-microvolt: true
regulator-over-current-protection: true
regulator-enable-ramp-delay: true
additionalProperties: false
"^buck[1-4]$":
type: object
properties:
interrupts:
maxItems: 1
st,mask-reset:
description: mask reset for this regulator,
the regulator configuration is maintained during pmic reset.
$ref: /schemas/types.yaml#/definitions/flag
regulator-name: true
regulator-boot-on: true
regulator-always-on: true
regulator-min-microvolt: true
regulator-max-microvolt: true
regulator-initial-mode: true
regulator-pull-down: true
regulator-over-current-protection: true
regulator-enable-ramp-delay: true
additionalProperties: false
"^pwr_sw[1-2]$":
type: object
properties:
interrupts:
maxItems: 1
regulator-name: true
regulator-boot-on: true
regulator-always-on: true
regulator-over-current-protection: true
regulator-active-discharge: true
additionalProperties: false
required:
- compatible
additionalProperties: false
additionalProperties: false
required:
- compatible
- reg
- interrupts
- "#interrupt-cells"
- interrupt-controller
examples:
- |
#include <dt-bindings/mfd/st,stpmic1.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@33 {
compatible = "st,stpmic1";
reg = <0x33>;
interrupt-parent = <&gpioa>;
interrupts = <0 2>;
interrupt-controller;
#interrupt-cells = <2>;
onkey {
compatible = "st,stpmic1-onkey";
interrupts = <IT_PONKEY_F 0>,<IT_PONKEY_R 1>;
interrupt-names = "onkey-falling", "onkey-rising";
power-off-time-sec = <10>;
};
watchdog {
compatible = "st,stpmic1-wdt";
};
regulators {
compatible = "st,stpmic1-regulators";
ldo6-supply = <&v3v3>;
buck1 {
regulator-name = "vdd_core";
interrupts = <IT_CURLIM_BUCK1 0>;
st,mask-reset;
regulator-boot-on;
regulator-min-microvolt = <700000>;
regulator-max-microvolt = <1200000>;
};
buck3 {
regulator-name = "vdd";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-pull-down;
};
buck4 {
regulator-name = "v3v3";
interrupts = <IT_CURLIM_BUCK4 0>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
ldo6 {
regulator-name = "v1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-over-current-protection;
};
};
};
};
...
