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     $ref: /schemas/types.yaml#/definitions/uint32
  33     description: Battery sense resistor in microohm.
  34     minimum: 1000
  35
  36   lltc,rsnsi-micro-ohms:
  37     $ref: /schemas/types.yaml#/definitions/uint32
  38     description: Input current sense resistor in microohm.
  39     minimum: 1000
  40
  41   lltc,cell-count:
  42     $ref: /schemas/types.yaml#/definitions/uint32
  43     description: |
  44       Number of battery cells. If not provided, will be obtained from the chip
  45       once the external power is applied. Omit this when the number of cells
  46       is somewhat dynamic. Without it, several measurements will return 0 until
  47       the charger is connected to an external supply.
  48
  49 required:
  50   - compatible
  51   - reg
  52   - lltc,rsnsb-micro-ohms
  53   - lltc,rsnsi-micro-ohms
  54
  55 additionalProperties: false
  56
  57 examples:
  58   - |
  59     i2c0 {
  60       #address-cells = <1>;
  61       #size-cells = <0>;
  62       charger: battery-charger@68 {
  63               compatible = "lltc,ltc4162-l";
  64               reg = <0x68>;
  65               lltc,rsnsb-micro-ohms = <10000>;
  66               lltc,rsnsi-micro-ohms = <16000>;
  67               lltc,cell-count = <2>;
  68       };
  69     };