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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/supply/maxim,max17040.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Maxim 17040 fuel gauge series
maintainers:
- Sebastian Reichel <sre@kernel.org>
allOf:
- $ref: power-supply.yaml#
properties:
compatible:
enum:
- maxim,max17040
- maxim,max17041
- maxim,max17043
- maxim,max17044
- maxim,max17048
- maxim,max17049
- maxim,max17058
- maxim,max17059
- maxim,max77836-battery
reg:
maxItems: 1
maxim,alert-low-soc-level:
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 1
maximum: 32
description: |
The alert threshold that sets the state of charge level (%) where an interrupt is generated.
If skipped the power up default value of 4 (%) will be used.
maxim,double-soc:
type: boolean
description: |
Certain devices return double the capacity.
Specify this to divide the reported value in 2 and thus normalize it.
SoC == State of Charge == Capacity.
maxim,rcomp:
$ref: /schemas/types.yaml#/definitions/uint8-array
minItems: 1
maxItems: 2
description: |
A value to compensate readings for various battery chemistries and operating temperatures.
max17040,41 have 2 byte rcomp, default to 0x97 0x00.
All other devices have one byte rcomp, default to 0x97.
interrupts:
maxItems: 1
wakeup-source:
type: boolean
description: |
Use this property to use alert low SoC level interrupt as wake up source.
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
i2c0 {
#address-cells = <1>;
#size-cells = <0>;
battery@36 {
compatible = "maxim,max17048";
reg = <0x36>;
maxim,rcomp = /bits/ 8 <0x56>;
maxim,alert-low-soc-level = <10>;
maxim,double-soc;
};
};
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c0 {
#address-cells = <1>;
#size-cells = <0>;
battery@36 {
compatible = "maxim,max77836-battery";
reg = <0x36>;
maxim,alert-low-soc-level = <10>;
interrupt-parent = <&gpio7>;
interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
wakeup-source;
};
};
|
