Documentation/devicetree/bindings/power/supply/ltc4162-l.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 # Copyright (C) 2020 Topic Embedded Products
   3 %YAML 1.2
   4 ---
   5 $id: "http://devicetree.org/schemas/power/supply/ltc4162-l.yaml#"
   6 $schema: "http://devicetree.org/meta-schemas/core.yaml#"
   7
   8 title: Linear Technology (Analog Devices) LTC4162-L Charger
   9
  10 maintainers:
  11   - Mike Looijmans <mike.looijmans@topic.nl>
  12
  13 description: |
  14   The LTC ® 4162-L is an advanced monolithic synchronous step-down switching
  15   battery charger and PowerPath (TM) manager that seamlessly manages power
  16   distribution between input sources such as wall adapters, backplanes, solar
  17   panels, etc., and a rechargeable Lithium-Ion/Polymer battery.
  18
  19   Specifications about the charger can be found at:
  20     https://www.analog.com/en/products/ltc4162-s.html
  21
  22 properties:
  23   compatible:
  24     enum:
  25       - lltc,ltc4162-l
  26
  27   reg:
  28     maxItems: 1
  29     description: I2C address of the charger.
  30
  31   lltc,rsnsb-micro-ohms:
  32     description: Battery sense resistor in microohm.
  33     minimum: 1000
  34
  35   lltc,rsnsi-micro-ohms:
  36     description: Input current sense resistor in microohm.
  37     minimum: 1000
  38
  39   lltc,cell-count:
  40     $ref: /schemas/types.yaml#/definitions/uint32
  41     description: |
  42       Number of battery cells. If not provided, will be obtained from the chip
  43       once the external power is applied. Omit this when the number of cells
  44       is somewhat dynamic. Without it, several measurements will return 0 until
  45       the charger is connected to an external supply.
  46
  47 required:
  48   - compatible
  49   - reg
  50   - lltc,rsnsb-micro-ohms
  51   - lltc,rsnsi-micro-ohms
  52
  53 additionalProperties: false
  54
  55 examples:
  56   - |
  57     i2c0 {
  58       #address-cells = <1>;
  59       #size-cells = <0>;
  60       charger: battery-charger@68 {
  61               compatible = "lltc,ltc4162-l";
  62               reg = <0x68>;
  63               lltc,rsnsb-micro-ohms = <10000>;
  64               lltc,rsnsi-micro-ohms = <16000>;
  65               lltc,cell-count = <2>;
  66       };
  67     };