| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | # SPDX-License-Identifier: GPL-2.0 |
| 2 | # Copyright (C) 2021 Sebastian Reichel |
| 3 | %YAML 1.2 |
| 4 | --- |
| 5 | $id: http://devicetree.org/schemas/power/supply/bq2415x.yaml# |
| 6 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 7 | |
| 8 | title: TI bq2415x Li-Ion Charger |
| 9 | |
| 10 | maintainers: |
| 11 | - Sebastian Reichel <sre@kernel.org> |
| 12 | |
| 13 | allOf: |
| 14 | - $ref: power-supply.yaml# |
| 15 | |
| 16 | properties: |
| 17 | compatible: |
| 18 | enum: |
| 19 | - ti,bq24150 |
| 20 | - ti,bq24150a |
| 21 | - ti,bq24151 |
| 22 | - ti,bq24151a |
| 23 | - ti,bq24152 |
| 24 | - ti,bq24153 |
| 25 | - ti,bq24153a |
| 26 | - ti,bq24155 |
| 27 | - ti,bq24156 |
| 28 | - ti,bq24156a |
| 29 | - ti,bq24158 |
| 30 | |
| 31 | reg: |
| 32 | maxItems: 1 |
| 33 | |
| 34 | ti,current-limit: |
| 35 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 36 | description: initial maximum current charger can pull from power supply in mA. |
| 37 | |
| 38 | ti,weak-battery-voltage: |
| 39 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 40 | description: | |
| 41 | weak battery voltage threshold in mV. |
| 42 | The chip will use slow precharge if battery voltage is below this value. |
| 43 | |
| 44 | ti,battery-regulation-voltage: |
| 45 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 46 | description: maximum charging voltage in mV. |
| 47 | |
| 48 | ti,charge-current: |
| 49 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 50 | description: maximum charging current in mA. |
| 51 | |
| 52 | ti,termination-current: |
| 53 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 54 | description: | |
| 55 | charge will be terminated when current in constant-voltage phase drops |
| 56 | below this value (in mA). |
| 57 | |
| 58 | ti,resistor-sense: |
| 59 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 60 | description: value of sensing resistor in milliohm. |
| 61 | |
| 62 | ti,usb-charger-detection: |
| 63 | $ref: /schemas/types.yaml#/definitions/phandle |
| 64 | description: phandle to usb charger detection device (required for auto mode) |
| 65 | |
| 66 | required: |
| 67 | - compatible |
| 68 | - reg |
| 69 | - ti,current-limit |
| 70 | - ti,weak-battery-voltage |
| 71 | - ti,battery-regulation-voltage |
| 72 | - ti,charge-current |
| 73 | - ti,termination-current |
| 74 | - ti,resistor-sense |
| 75 | |
| 76 | additionalProperties: false |
| 77 | |
| 78 | examples: |
| 79 | - | |
| 80 | i2c { |
| 81 | #address-cells = <1>; |
| 82 | #size-cells = <0>; |
| 83 | |
| 84 | charger@6b { |
| 85 | compatible = "ti,bq24150a"; |
| 86 | reg = <0x6b>; |
| 87 | |
| 88 | ti,current-limit = <100>; |
| 89 | ti,weak-battery-voltage = <3400>; |
| 90 | ti,battery-regulation-voltage = <4200>; |
| 91 | ti,charge-current = <650>; |
| 92 | ti,termination-current = <100>; |
| 93 | ti,resistor-sense = <68>; |
| 94 | |
| 95 | ti,usb-charger-detection = <&isp1704>; |
| 96 | }; |
| 97 | }; |