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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/supply/richtek,rt9455.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Richtek rt9455 battery charger
maintainers:
- Sebastian Reichel <sre@kernel.org>
allOf:
- $ref: power-supply.yaml#
properties:
compatible:
const: richtek,rt9455
reg:
maxItems: 1
interrupts:
maxItems: 1
richtek,output-charge-current:
$ref: /schemas/types.yaml#/definitions/uint32
description: output current from the charger to the battery, in uA.
richtek,end-of-charge-percentage:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
percent of the output charge current. When the current in constant-voltage phase drops
below output_charge_current x end-of-charge-percentage, charge is terminated.
richtek,battery-regulation-voltage:
$ref: /schemas/types.yaml#/definitions/uint32
description: maximum battery voltage in uV.
richtek,boost-output-voltage:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
maximum voltage provided to consumer devices, when the charger is in boost mode, in uV.
richtek,min-input-voltage-regulation:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
input voltage level in uV, used to decrease voltage level when the over current of the
input power source occurs. This prevents input voltage drop due to insufficient
current provided by the power source. Defaults to 4500000 uV (4.5V).
richtek,avg-input-current-regulation:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
input current value in uA drained by the charger from the power source.
Defaults to 500000 uA (500mA).
required:
- compatible
- reg
- interrupts
- richtek,output-charge-current
- richtek,end-of-charge-percentage
- richtek,battery-regulation-voltage
- richtek,boost-output-voltage
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
charger@22 {
compatible = "richtek,rt9455";
reg = <0x22>;
interrupt-parent = <&gpio1>;
interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
richtek,output-charge-current = <500000>;
richtek,end-of-charge-percentage = <10>;
richtek,battery-regulation-voltage = <4200000>;
richtek,boost-output-voltage = <5050000>;
richtek,min-input-voltage-regulation = <4500000>;
richtek,avg-input-current-regulation = <500000>;
};
};
|
