1464a7488SSebastian Reichel# SPDX-License-Identifier: GPL-2.0 2464a7488SSebastian Reichel# Copyright (C) 2021 Sebastian Reichel 3464a7488SSebastian Reichel%YAML 1.2 4464a7488SSebastian Reichel--- 51ea78ec5SKrzysztof Kozlowski$id: http://devicetree.org/schemas/power/supply/bq24735.yaml# 61ea78ec5SKrzysztof Kozlowski$schema: http://devicetree.org/meta-schemas/core.yaml# 7464a7488SSebastian Reichel 8*9d69d47fSKrzysztof Kozlowskititle: TI BQ24735 Li-Ion Battery Charger 9464a7488SSebastian Reichel 10464a7488SSebastian Reichelmaintainers: 11464a7488SSebastian Reichel - Sebastian Reichel <sre@kernel.org> 12464a7488SSebastian Reichel 13464a7488SSebastian ReichelallOf: 14464a7488SSebastian Reichel - $ref: power-supply.yaml# 15464a7488SSebastian Reichel 16464a7488SSebastian Reichelproperties: 17464a7488SSebastian Reichel compatible: 18464a7488SSebastian Reichel const: ti,bq24735 19464a7488SSebastian Reichel 20464a7488SSebastian Reichel reg: 21464a7488SSebastian Reichel maxItems: 1 22464a7488SSebastian Reichel 23464a7488SSebastian Reichel interrupts: 24464a7488SSebastian Reichel description: AC adapter plug event interrupt 25464a7488SSebastian Reichel maxItems: 1 26464a7488SSebastian Reichel 27464a7488SSebastian Reichel ti,ac-detect-gpios: 28464a7488SSebastian Reichel maxItems: 1 29464a7488SSebastian Reichel description: | 30464a7488SSebastian Reichel This GPIO is optionally used to read the AC adapter status. This is a Host GPIO 31464a7488SSebastian Reichel that is configured as an input and connected to the ACOK pin on the bq24735. 32464a7488SSebastian Reichel Note: for backwards compatibility reasons, the GPIO must be active on AC adapter 33464a7488SSebastian Reichel absence despite ACOK being active (high) on AC adapter presence. 34464a7488SSebastian Reichel 35464a7488SSebastian Reichel ti,charge-current: 36464a7488SSebastian Reichel $ref: /schemas/types.yaml#/definitions/uint32 37464a7488SSebastian Reichel description: | 38464a7488SSebastian Reichel Used to control and set the charging current. 39464a7488SSebastian Reichel This value must be between 128mA and 8.128A with a 64mA step resolution. 40464a7488SSebastian Reichel The POR value is 0x0000h. This number is in mA (e.g. 8192). 41464a7488SSebastian Reichel See spec for more information about the ChargeCurrent (0x14h) register. 42464a7488SSebastian Reichel 43464a7488SSebastian Reichel ti,charge-voltage: 44464a7488SSebastian Reichel $ref: /schemas/types.yaml#/definitions/uint32 45464a7488SSebastian Reichel description: | 46464a7488SSebastian Reichel Used to control and set the charging voltage. 47464a7488SSebastian Reichel This value must be between 1.024V and 19.2V with a 16mV step resolution. 48464a7488SSebastian Reichel The POR value is 0x0000h. This number is in mV (e.g. 19200). 49464a7488SSebastian Reichel See spec for more information about the ChargeVoltage (0x15h) register. 50464a7488SSebastian Reichel 51464a7488SSebastian Reichel ti,input-current: 52464a7488SSebastian Reichel $ref: /schemas/types.yaml#/definitions/uint32 53464a7488SSebastian Reichel description: | 54464a7488SSebastian Reichel Used to control and set the charger input current. 55464a7488SSebastian Reichel This value must be between 128mA and 8.064A with a 128mA step resolution. 56464a7488SSebastian Reichel The POR value is 0x1000h. This number is in mA (e.g. 8064). 57464a7488SSebastian Reichel See the spec for more information about the InputCurrent (0x3fh) register. 58464a7488SSebastian Reichel 59464a7488SSebastian Reichel ti,external-control: 60464a7488SSebastian Reichel type: boolean 61464a7488SSebastian Reichel description: | 62464a7488SSebastian Reichel Indicates that the charger is configured externally and that the host should not 63464a7488SSebastian Reichel attempt to enable/disable charging or set the charge voltage/current. 64464a7488SSebastian Reichel 65464a7488SSebastian Reichel poll-interval: 66464a7488SSebastian Reichel $ref: /schemas/types.yaml#/definitions/uint32 67464a7488SSebastian Reichel description: | 68464a7488SSebastian Reichel If 'interrupts' is not specified, poll AC adapter presence with this interval (milliseconds). 69464a7488SSebastian Reichel 70464a7488SSebastian Reichelrequired: 71464a7488SSebastian Reichel - compatible 72464a7488SSebastian Reichel - reg 73464a7488SSebastian Reichel 74464a7488SSebastian ReicheladditionalProperties: false 75464a7488SSebastian Reichel 76464a7488SSebastian Reichelexamples: 77464a7488SSebastian Reichel - | 78464a7488SSebastian Reichel #include <dt-bindings/gpio/gpio.h> 79464a7488SSebastian Reichel 80464a7488SSebastian Reichel i2c0 { 81464a7488SSebastian Reichel #address-cells = <1>; 82464a7488SSebastian Reichel #size-cells = <0>; 83464a7488SSebastian Reichel 84464a7488SSebastian Reichel charger@9 { 85464a7488SSebastian Reichel compatible = "ti,bq24735"; 86464a7488SSebastian Reichel reg = <0x9>; 87464a7488SSebastian Reichel ti,ac-detect-gpios = <&gpio 72 0x1>; 88464a7488SSebastian Reichel }; 89464a7488SSebastian Reichel }; 90