Documentation/devicetree/bindings/gpio/loongson,ls1x-gpio.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/gpio/loongson,ls1x-gpio.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Loongson-1 GPIO controller
   8
   9 maintainers:
  10   - Keguang Zhang <keguang.zhang@gmail.com>
  11
  12 properties:
  13   compatible:
  14     const: loongson,ls1x-gpio
  15
  16   reg:
  17     maxItems: 1
  18
  19   gpio-controller: true
  20
  21   "#gpio-cells":
  22     const: 2
  23
  24   ngpios:
  25     minimum: 1
  26     maximum: 32
  27
  28 required:
  29   - compatible
  30   - reg
  31   - gpio-controller
  32   - "#gpio-cells"
  33   - ngpios
  34
  35 additionalProperties: false
  36
  37 examples:
  38   - |
  39     gpio0: gpio@1fd010c0 {
  40         compatible = "loongson,ls1x-gpio";
  41         reg = <0x1fd010c0 0x4>;
  42
  43         gpio-controller;
  44         #gpio-cells = <2>;
  45
  46         ngpios = <32>;
  47     };
  48
  49 ...