Documentation/devicetree/bindings/gpio/sifive,gpio.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/gpio/sifive,gpio.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: SiFive GPIO controller
   8
   9 maintainers:
  10   - Yash Shah <yash.shah@sifive.com>
  11   - Paul Walmsley <paul.walmsley@sifive.com>
  12
  13 properties:
  14   compatible:
  15     items:
  16       - const: sifive,fu540-c000-gpio
  17       - const: sifive,gpio0
  18
  19   reg:
  20     maxItems: 1
  21
  22   interrupts:
  23     description:
  24       interrupt mapping one per GPIO. Maximum 16 GPIOs.
  25     minItems: 1
  26     maxItems: 16
  27
  28   interrupt-controller: true
  29
  30   "#interrupt-cells":
  31     const: 2
  32
  33   clocks:
  34     maxItems: 1
  35
  36   "#gpio-cells":
  37     const: 2
  38
  39   gpio-controller: true
  40
  41 required:
  42   - compatible
  43   - reg
  44   - interrupts
  45   - interrupt-controller
  46   - "#interrupt-cells"
  47   - clocks
  48   - "#gpio-cells"
  49   - gpio-controller
  50
  51 additionalProperties: false
  52
  53 examples:
  54   - |
  55       #include <dt-bindings/clock/sifive-fu540-prci.h>
  56       gpio@10060000 {
  57         compatible = "sifive,fu540-c000-gpio", "sifive,gpio0";
  58         interrupt-parent = <&plic>;
  59         interrupts = <7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22>;
  60         reg = <0x10060000 0x1000>;
  61         clocks = <&tlclk PRCI_CLK_TLCLK>;
  62         gpio-controller;
  63         #gpio-cells = <2>;
  64         interrupt-controller;
  65         #interrupt-cells = <2>;
  66       };
  67
  68 ...