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Open Menu / Documentation / devicetree / bindings / power / supply / bq27xxx.yaml
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# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2020 Texas Instruments Incorporated
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/supply/bq27xxx.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: TI BQ27XXX fuel gauge family

maintainers:
  - Pali Rohár <pali@kernel.org>
  - Andrew F. Davis <afd@ti.com>
  - Sebastian Reichel <sre@kernel.org>

description: |
  Support various Texas Instruments fuel gauge devices that share similar
  register maps and power supply properties

allOf:
  - $ref: power-supply.yaml#

properties:
  compatible:
    enum:
      - ti,bq27200
      - ti,bq27210
      - ti,bq27500 # deprecated, use revision specific property below
      - ti,bq27510 # deprecated, use revision specific property below
      - ti,bq27520 # deprecated, use revision specific property below
      - ti,bq27500-1
      - ti,bq27510g1
      - ti,bq27510g2
      - ti,bq27510g3
      - ti,bq27520g1
      - ti,bq27520g2
      - ti,bq27520g3
      - ti,bq27520g4
      - ti,bq27521
      - ti,bq27530
      - ti,bq27531
      - ti,bq27541
      - ti,bq27542
      - ti,bq27546
      - ti,bq27742
      - ti,bq27545
      - ti,bq27411
      - ti,bq27421
      - ti,bq27425
      - ti,bq27426
      - ti,bq27441
      - ti,bq27621
      - ti,bq27z561
      - ti,bq28z610
      - ti,bq34z100
      - ti,bq78z100

  reg:
    maxItems: 1
    description: integer, I2C address of the fuel gauge.

  monitored-battery:
    description: |
       phandle of battery characteristics node.
       The fuel gauge uses the following battery properties:
       - energy-full-design-microwatt-hours
       - charge-full-design-microamp-hours
       - voltage-min-design-microvolt
       Both or neither of the *-full-design-*-hours properties must be set.
       See Documentation/devicetree/bindings/power/supply/battery.yaml

  power-supplies: true

required:
  - compatible
  - reg
additionalProperties: false

examples:
  - |
    i2c0 {
      #address-cells = <1>;
      #size-cells = <0>;
      bat: battery {
        compatible = "simple-battery";
        voltage-min-design-microvolt = <3200000>;
        energy-full-design-microwatt-hours = <5290000>;
        charge-full-design-microamp-hours = <1430000>;
      };

      bq27510g3: fuel-gauge@55 {
        compatible = "ti,bq27510g3";
        reg = <0x55>;
        monitored-battery = <&bat>;
      };
    };