# SPDX-License-Identifier: GPL-2.0 # Copyright (C) 2021 Sebastian Reichel %YAML 1.2 --- $id: "http://devicetree.org/schemas/power/supply/bq24735.yaml#" $schema: "http://devicetree.org/meta-schemas/core.yaml#" title: Binding for TI BQ24735 Li-Ion Battery Charger maintainers: - Sebastian Reichel <sre@kernel.org> allOf: - $ref: power-supply.yaml# properties: compatible: const: ti,bq24735 reg: maxItems: 1 interrupts: description: AC adapter plug event interrupt maxItems: 1 ti,ac-detect-gpios: maxItems: 1 description: | This GPIO is optionally used to read the AC adapter status. This is a Host GPIO that is configured as an input and connected to the ACOK pin on the bq24735. Note: for backwards compatibility reasons, the GPIO must be active on AC adapter absence despite ACOK being active (high) on AC adapter presence. ti,charge-current: $ref: /schemas/types.yaml#/definitions/uint32 description: | Used to control and set the charging current. This value must be between 128mA and 8.128A with a 64mA step resolution. The POR value is 0x0000h. This number is in mA (e.g. 8192). See spec for more information about the ChargeCurrent (0x14h) register. ti,charge-voltage: $ref: /schemas/types.yaml#/definitions/uint32 description: | Used to control and set the charging voltage. This value must be between 1.024V and 19.2V with a 16mV step resolution. The POR value is 0x0000h. This number is in mV (e.g. 19200). See spec for more information about the ChargeVoltage (0x15h) register. ti,input-current: $ref: /schemas/types.yaml#/definitions/uint32 description: | Used to control and set the charger input current. This value must be between 128mA and 8.064A with a 128mA step resolution. The POR value is 0x1000h. This number is in mA (e.g. 8064). See the spec for more information about the InputCurrent (0x3fh) register. ti,external-control: type: boolean description: | Indicates that the charger is configured externally and that the host should not attempt to enable/disable charging or set the charge voltage/current. poll-interval: $ref: /schemas/types.yaml#/definitions/uint32 description: | If 'interrupts' is not specified, poll AC adapter presence with this interval (milliseconds). required: - compatible - reg additionalProperties: false examples: - | #include <dt-bindings/gpio/gpio.h> i2c0 { #address-cells = <1>; #size-cells = <0>; charger@9 { compatible = "ti,bq24735"; reg = <0x9>; ti,ac-detect-gpios = <&gpio 72 0x1>; }; };