Mike Looijmans | 26fe7d1 | 2020-11-03 09:37:06 +0100 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | # Copyright (C) 2020 Topic Embedded Products |
| 3 | %YAML 1.2 |
| 4 | --- |
Krzysztof Kozlowski | 1ea78ec | 2022-07-26 13:57:48 +0200 | [diff] [blame] | 5 | $id: http://devicetree.org/schemas/power/supply/ltc4162-l.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
Mike Looijmans | 26fe7d1 | 2020-11-03 09:37:06 +0100 | [diff] [blame] | 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: |
Mike Looijmans | 26fe7d1 | 2020-11-03 09:37:06 +0100 | [diff] [blame] | 32 | description: Battery sense resistor in microohm. |
| 33 | minimum: 1000 |
| 34 | |
| 35 | lltc,rsnsi-micro-ohms: |
Mike Looijmans | 26fe7d1 | 2020-11-03 09:37:06 +0100 | [diff] [blame] | 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 | - | |
Rob Herring | 20a72af | 2023-02-28 15:54:33 -0600 | [diff] [blame] | 57 | i2c { |
Mike Looijmans | 26fe7d1 | 2020-11-03 09:37:06 +0100 | [diff] [blame] | 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 | }; |