xref: /freebsd/sys/contrib/device-tree/Bindings/power/supply/bq2415x.yaml (revision 2eb4d8dc723da3cf7d735a3226ae49da4c8c5dbc)

# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2021 Sebastian Reichel
%YAML 1.2
---
$id: "http://devicetree.org/schemas/power/supply/bq2415x.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"

title: Binding for TI bq2415x Li-Ion Charger

maintainers:
  - Sebastian Reichel <sre@kernel.org>

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

properties:
  compatible:
    enum:
      - ti,bq24150
      - ti,bq24150
      - ti,bq24150a
      - ti,bq24151
      - ti,bq24151a
      - ti,bq24152
      - ti,bq24153
      - ti,bq24153a
      - ti,bq24155
      - ti,bq24156
      - ti,bq24156a
      - ti,bq24158

  reg:
    maxItems: 1

  ti,current-limit:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: initial maximum current charger can pull from power supply in mA.

  ti,weak-battery-voltage:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: |
      weak battery voltage threshold in mV.
      The chip will use slow precharge if battery voltage is below this value.

  ti,battery-regulation-voltage:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: maximum charging voltage in mV.

  ti,charge-current:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: maximum charging current in mA.

  ti,termination-current:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: |
      charge will be terminated when current in constant-voltage phase drops
      below this value (in mA).

  ti,resistor-sense:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: value of sensing resistor in milliohm.

  ti,usb-charger-detection:
    $ref: /schemas/types.yaml#/definitions/phandle
    description: phandle to usb charger detection device (required for auto mode)

required:
  - compatible
  - reg
  - ti,current-limit
  - ti,weak-battery-voltage
  - ti,battery-regulation-voltage
  - ti,charge-current
  - ti,termination-current
  - ti,resistor-sense

additionalProperties: false

examples:
  - |
    i2c0 {
      #address-cells = <1>;
      #size-cells = <0>;

      charger@6b {
        compatible = "ti,bq24150a";
        reg = <0x6b>;

        ti,current-limit = <100>;
        ti,weak-battery-voltage = <3400>;
        ti,battery-regulation-voltage = <4200>;
        ti,charge-current = <650>;
        ti,termination-current = <100>;
        ti,resistor-sense = <68>;

        ti,usb-charger-detection = <&isp1704>;
      };
    };