66 lines · yaml
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)2%YAML 1.23---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 Charger8 9maintainers:10 - Jakob Hauser <jahau@rocketmail.com>11 12description:13 The battery charger of the multifunction device RT5033 has to be instantiated14 under sub-node named "charger" using the following format.15 16properties:17 compatible:18 const: richtek,rt5033-charger19 20 monitored-battery:21 $ref: /schemas/types.yaml#/definitions/phandle22 description: |23 Phandle to the monitored battery according to battery.yaml. The battery24 node needs to contain five parameters.25 26 precharge-current-microamp:27 Current of pre-charge mode. The pre-charge current levels are 350 mA28 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 mA32 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 mA36 to 600 mA. Between 150 mA and 300 mA in 50 mA steps, between 300 mA and37 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-charge41 threshold voltage, the charger is in pre-charge mode with pre-charge42 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 levels46 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/phandle50 description:51 Phandle to a USB connector according to usb-connector.yaml. The connector52 should be a child of the extcon device.53 54required:55 - monitored-battery56 57additionalProperties: false58 59examples:60 - |61 charger {62 compatible = "richtek,rt5033-charger";63 monitored-battery = <&battery>;64 richtek,usb-connector = <&usb_con>;65 };66