Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml

Source file repositories/reference/linux-study-clean/Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml

File Facts

System
Linux kernel
Corpus path
Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml
Extension
.yaml
Size
1817 bytes
Lines
74
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/supply/richtek,rt9471.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Richtek RT9471 3A Single Cell Switching Battery charger

maintainers:
  - Alina Yu <alina_yu@richtek.com>
  - ChiYuan Huang <cy_huang@richtek.com>

description: |
  RT9471 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for
  portable applications. It supports USB BC1.2 port detection, current and
  voltage regulations in both charging and boost mode.

  Datasheet is available at
  https://www.richtek.com/assets/product_file/RT9471=RT9471D/DS9471D-02.pdf

properties:
  compatible:
    const: richtek,rt9471

  reg:
    maxItems: 1

  charge-enable-gpios:
    description: GPIO used to turn on and off charging.
    maxItems: 1

  wakeup-source: true

  interrupts:
    maxItems: 1

  usb-otg-vbus-regulator:
    type: object
    $ref: /schemas/regulator/regulator.yaml#
    unevaluatedProperties: false

required:
  - compatible
  - reg
  - wakeup-source
  - interrupts

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/gpio/gpio.h>
    i2c {
      #address-cells = <1>;
      #size-cells = <0>;

      charger@53 {
        compatible = "richtek,rt9471";
        reg = <0x53>;
        charge-enable-gpios = <&gpio26 1 GPIO_ACTIVE_LOW>;
        wakeup-source;
        interrupts-extended = <&gpio_intc 32 IRQ_TYPE_EDGE_FALLING>;

        usb-otg-vbus-regulator {
          regulator-name = "usb-otg-vbus";
          regulator-min-microvolt = <4850000>;
          regulator-max-microvolt = <5300000>;
          regulator-min-microamp = <500000>;
          regulator-max-microamp = <1200000>;

Annotation

Implementation Notes