1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/power/supply/richtek,rt5033-charger.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Richtek RT5033 PMIC Battery Charger 8 9maintainers: 10 - Jakob Hauser <jahau@rocketmail.com> 11 12description: 13 The battery charger of the multifunction device RT5033 has to be instantiated 14 under sub-node named "charger" using the following format. 15 16properties: 17 compatible: 18 const: richtek,rt5033-charger 19 20 monitored-battery: 21 $ref: /schemas/types.yaml#/definitions/phandle 22 description: | 23 Phandle to the monitored battery according to battery.yaml. The battery 24 node needs to contain five parameters. 25 26 precharge-current-microamp: 27 Current of pre-charge mode. The pre-charge current levels are 350 mA 28 to 650 mA programmed by I2C per 100 mA. 29 30 constant-charge-current-max-microamp: 31 Current of fast-charge mode. The fast-charge current levels are 700 mA 32 to 2000 mA programmed by I2C per 100 mA. 33 34 charge-term-current-microamp: 35 This property is end of charge current. Its level ranges from 150 mA 36 to 600 mA. Between 150 mA and 300 mA in 50 mA steps, between 300 mA and 37 600 mA in 100 mA steps. 38 39 precharge-upper-limit-microvolt: 40 Voltage of pre-charge mode. If the battery voltage is below the pre-charge 41 threshold voltage, the charger is in pre-charge mode with pre-charge 42 current. Its levels are 2.3 V to 3.8 V programmed by I2C per 0.1 V. 43 44 constant-charge-voltage-max-microvolt: 45 Battery regulation voltage of constant voltage mode. This voltage levels 46 from 3.65 V to 4.4 V by I2C per 0.025 V. 47 48 richtek,usb-connector: 49 $ref: /schemas/types.yaml#/definitions/phandle 50 description: 51 Phandle to a USB connector according to usb-connector.yaml. The connector 52 should be a child of the extcon device. 53 54required: 55 - monitored-battery 56 57additionalProperties: false 58 59examples: 60 - | 61 charger { 62 compatible = "richtek,rt5033-charger"; 63 monitored-battery = <&battery>; 64 richtek,usb-connector = <&usb_con>; 65 }; 66