Documentation / devicetree / bindings / gpio / loongson,ls-gpio.yaml


Based on kernel version 6.18. Page generated on 2025-12-02 09:03 EST.

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

title: Loongson GPIO controller.

maintainers:
  - Yinbo Zhu <zhuyinbo@loongson.cn>

properties:
  compatible:
    oneOf:
      - enum:
          - loongson,ls2k-gpio
          - loongson,ls2k0300-gpio
          - loongson,ls2k0500-gpio0
          - loongson,ls2k0500-gpio1
          - loongson,ls2k2000-gpio0
          - loongson,ls2k2000-gpio1
          - loongson,ls2k2000-gpio2
          - loongson,ls3a5000-gpio
          - loongson,ls3a6000-gpio  # Loongson-3A6000 node GPIO
          - loongson,ls7a-gpio
          - loongson,ls7a2000-gpio1 # LS7A2000 chipset GPIO
          - loongson,ls7a2000-gpio2 # LS7A2000 ACPI GPIO
      - items:
          - const: loongson,ls2k1000-gpio
          - const: loongson,ls2k-gpio
      - items:
          - const: loongson,ls7a1000-gpio
          - const: loongson,ls7a-gpio

  reg:
    maxItems: 1

  ngpios:
    minimum: 1
    maximum: 128
 
  "#gpio-cells":
    const: 2

  gpio-controller: true

  gpio-ranges: true

  interrupts:
    minItems: 1
    maxItems: 64
 
  "#interrupt-cells":
    const: 2

  interrupt-controller: true

  resets:
    maxItems: 1

required:
  - compatible
  - reg
  - ngpios
  - "#gpio-cells"
  - gpio-controller
  - gpio-ranges
  - interrupts

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: loongson,ls2k0300-gpio
    then:
      required:
        - "#interrupt-cells"
        - interrupt-controller
        - resets
    else:
      properties:
        "#interrupts-cells": false
        interrupt-controller: false
        resets: false

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
 
    gpio0: gpio@1fe00500 {
      compatible = "loongson,ls2k1000-gpio", "loongson,ls2k-gpio";
      reg = <0x1fe00500 0x38>;
      ngpios = <64>;
      #gpio-cells = <2>;
      gpio-controller;
      gpio-ranges = <&pctrl 0 0 15>,
                    <&pctrl 16 16 15>,
                    <&pctrl 32 32 10>,
                    <&pctrl 44 44 20>;
      interrupt-parent = <&liointc1>;
      interrupts = <28 IRQ_TYPE_LEVEL_LOW>,
                   <29 IRQ_TYPE_LEVEL_LOW>,
                   <30 IRQ_TYPE_LEVEL_LOW>,
                   <30 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <26 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <>,
                   <>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>,
                   <27 IRQ_TYPE_LEVEL_LOW>;
    };