# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id:
http://devicetree.org/schemas/mfd/max77650.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: MAX77650 ultra low-power PMIC from Maxim Integrated.
maintainers:
- Bartosz Golaszewski <bgolaszewski@baylibre.com>
description: |
MAX77650 is an ultra-low power PMIC providing battery charging and power
supply for low-power IoT and wearable applications.
The GPIO-controller module is represented as part of the top-level PMIC
node. The device exposes a single GPIO line.
For device-tree bindings of other sub-modules (regulator, power supply,
LEDs and onkey) refer to the binding documents under the respective
sub-system directories.
properties:
compatible:
const: maxim,max77650
reg:
description:
I2C device address.
maxItems: 1
interrupts:
maxItems: 1
interrupt-controller: true
"#interrupt-cells":
const: 2
description:
The first cell is the IRQ number, the second cell is the trigger type.
gpio-controller: true
"#gpio-cells":
const: 2
description:
The first cell is the pin number and the second cell is used to specify
the gpio active state.
gpio-line-names:
maxItems: 1
description:
Single string containing the name of the GPIO line.
regulators:
$ref: /schemas/regulator/max77650-regulator.yaml
charger:
$ref: /schemas/power/supply/max77650-charger.yaml
leds:
$ref: /schemas/leds/leds-max77650.yaml
onkey:
$ref: /schemas/input/max77650-onkey.yaml
required:
- compatible
- reg
- interrupts
- interrupt-controller
- "#interrupt-cells"
- gpio-controller
- "#gpio-cells"
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/input/linux-event-codes.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@48 {
compatible = "maxim,max77650";
reg = <0x48>;
interrupt-controller;
interrupt-parent = <&gpio2>;
#interrupt-cells = <2>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
gpio-controller;
#gpio-cells = <2>;
gpio-line-names = "max77650-charger";
regulators {
compatible = "maxim,max77650-regulator";
max77650_ldo: regulator-ldo {
regulator-name = "max77650-ldo";
regulator-min-microvolt = <1350000>;
regulator-max-microvolt = <2937500>;
};
max77650_sbb0: regulator-sbb0 {
regulator-name = "max77650-sbb0";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1587500>;
};
};
charger {
compatible = "maxim,max77650-charger";
input-voltage-min-microvolt = <4200000>;
input-current-limit-microamp = <285000>;
};
leds {
compatible = "maxim,max77650-led";
#address-cells = <1>;
#size-cells = <0>;
led@0 {
reg = <0>;
label = "blue:usr0";
};
led@1 {
reg = <1>;
label = "red:usr1";
linux,default-trigger = "heartbeat";
};
led@2 {
reg = <2>;
label = "green:usr2";
};
};
onkey {
compatible = "maxim,max77650-onkey";
linux,code = <KEY_END>;
maxim,onkey-slide;
};
};
};
