2023-08-30 17:31:07 +02:00
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/supply/richtek,rt9455.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Richtek rt9455 battery charger
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maintainers:
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- Sebastian Reichel <sre@kernel.org>
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allOf:
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- $ref: power-supply.yaml#
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properties:
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compatible:
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const: richtek,rt9455
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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richtek,output-charge-current:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: output current from the charger to the battery, in uA.
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richtek,end-of-charge-percentage:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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percent of the output charge current. When the current in constant-voltage phase drops
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below output_charge_current x end-of-charge-percentage, charge is terminated.
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richtek,battery-regulation-voltage:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: maximum battery voltage in uV.
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richtek,boost-output-voltage:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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maximum voltage provided to consumer devices, when the charger is in boost mode, in uV.
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richtek,min-input-voltage-regulation:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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input voltage level in uV, used to decrease voltage level when the over current of the
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input power source occurs. This prevents input voltage drop due to insufficient
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current provided by the power source. Defaults to 4500000 uV (4.5V).
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richtek,avg-input-current-regulation:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: |
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input current value in uA drained by the charger from the power source.
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Defaults to 500000 uA (500mA).
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required:
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- compatible
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- reg
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- interrupts
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- richtek,output-charge-current
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- richtek,end-of-charge-percentage
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- richtek,battery-regulation-voltage
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- richtek,boost-output-voltage
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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2023-10-24 12:59:35 +02:00
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i2c {
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2023-08-30 17:31:07 +02:00
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#address-cells = <1>;
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#size-cells = <0>;
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charger@22 {
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compatible = "richtek,rt9455";
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reg = <0x22>;
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interrupt-parent = <&gpio1>;
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interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
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richtek,output-charge-current = <500000>;
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richtek,end-of-charge-percentage = <10>;
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richtek,battery-regulation-voltage = <4200000>;
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richtek,boost-output-voltage = <5050000>;
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richtek,min-input-voltage-regulation = <4500000>;
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richtek,avg-input-current-regulation = <500000>;
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};
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};
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