91 lines · yaml
1# SPDX-License-Identifier: GPL-2.02%YAML 1.23---4$id: http://devicetree.org/schemas/power/supply/richtek,rt9455.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Richtek rt9455 battery charger8 9maintainers:10 - Sebastian Reichel <sre@kernel.org>11 12allOf:13 - $ref: power-supply.yaml#14 15properties:16 compatible:17 const: richtek,rt945518 19 reg:20 maxItems: 121 22 interrupts:23 maxItems: 124 25 richtek,output-charge-current:26 $ref: /schemas/types.yaml#/definitions/uint3227 description: output current from the charger to the battery, in uA.28 29 richtek,end-of-charge-percentage:30 $ref: /schemas/types.yaml#/definitions/uint3231 description: |32 percent of the output charge current. When the current in constant-voltage phase drops33 below output_charge_current x end-of-charge-percentage, charge is terminated.34 35 richtek,battery-regulation-voltage:36 $ref: /schemas/types.yaml#/definitions/uint3237 description: maximum battery voltage in uV.38 39 richtek,boost-output-voltage:40 $ref: /schemas/types.yaml#/definitions/uint3241 description: |42 maximum voltage provided to consumer devices, when the charger is in boost mode, in uV.43 44 richtek,min-input-voltage-regulation:45 $ref: /schemas/types.yaml#/definitions/uint3246 description: |47 input voltage level in uV, used to decrease voltage level when the over current of the48 input power source occurs. This prevents input voltage drop due to insufficient49 current provided by the power source. Defaults to 4500000 uV (4.5V).50 51 richtek,avg-input-current-regulation:52 $ref: /schemas/types.yaml#/definitions/uint3253 description: |54 input current value in uA drained by the charger from the power source.55 Defaults to 500000 uA (500mA).56 57required:58 - compatible59 - reg60 - interrupts61 - richtek,output-charge-current62 - richtek,end-of-charge-percentage63 - richtek,battery-regulation-voltage64 - richtek,boost-output-voltage65 66additionalProperties: false67 68examples:69 - |70 #include <dt-bindings/interrupt-controller/irq.h>71 i2c {72 #address-cells = <1>;73 #size-cells = <0>;74 75 charger@22 {76 compatible = "richtek,rt9455";77 reg = <0x22>;78 79 interrupt-parent = <&gpio1>;80 interrupts = <0 IRQ_TYPE_LEVEL_LOW>;81 82 richtek,output-charge-current = <500000>;83 richtek,end-of-charge-percentage = <10>;84 richtek,battery-regulation-voltage = <4200000>;85 richtek,boost-output-voltage = <5050000>;86 87 richtek,min-input-voltage-regulation = <4500000>;88 richtek,avg-input-current-regulation = <500000>;89 };90 };91