xref: /openbmc/linux/Documentation/devicetree/bindings/power/supply/ti,lp8727.yaml (revision 1ac731c529cd4d6adbce134754b51ff7d822b145)

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/supply/ti,lp8727.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: TI/National Semiconductor LP8727 Charger

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

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

properties:
  compatible:
    const: ti,lp8727

  reg:
    const: 0x27

  interrupts:
    maxItems: 1

  debounce-ms:
    description: interrupt debounce time in ms

patternProperties:
  '^(ac|usb)$':
    type: object
    additionalProperties: false
    description: USB/AC charging parameters
    properties:
      charger-type:
        enum:
          - ac
          - usb

      eoc-level:
        $ref: /schemas/types.yaml#/definitions/uint8
        minimum: 0
        maximum: 6
        description: |
          End of Charge Percentage with the following mapping:
          0 = 5%, 1 = 10%, 2 = 16%, 3 = 20%, 4 = 25%, 5 = 33%, 6 = 50%

      charging-current:
        $ref: /schemas/types.yaml#/definitions/uint8
        minimum: 0
        maximum: 9
        description: |
          Charging current with the following mapping:
          0 = 90mA, 1 = 100mA, 2 = 400mA, 3 = 450mA, 4 = 500mA, 5 = 600mA,
          6 = 700mA, 7 = 800mA, 8 = 900mA, 9 = 1000mA

required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    i2c {
      #address-cells = <1>;
      #size-cells = <0>;

      lp8727: charger@27 {
        compatible = "ti,lp8727";
        reg = <0x27>;
        interrupt-parent = <&gpio5>;
        interrupts = <6 IRQ_TYPE_EDGE_FALLING>;
        debounce-ms = <300>;

        /* AC charger: 5% EOC and 500mA charging current */
        ac {
          charger-type = "ac";
          eoc-level = /bits/ 8 <0>;
          charging-current = /bits/ 8 <4>;
        };

        /* USB charger: 10% EOC and 400mA charging current */
        usb {
          charger-type = "usb";
          eoc-level = /bits/ 8 <1>;
          charging-current = /bits/ 8 <2>;
        };
      };
    };