xref: /freebsd-src/sys/contrib/device-tree/Bindings/timer/cdns,ttc.yaml (revision 01950c46b8155250f64374fb72fc11faa44bf099)

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

title: Cadence TTC - Triple Timer Counter

maintainers:
  - Michal Simek <michal.simek@amd.com>

properties:
  compatible:
    const: cdns,ttc

  reg:
    maxItems: 1

  interrupts:
    maxItems: 3
    description: |
      A list of 3 interrupts; one per timer channel.

  clocks:
    maxItems: 1

  power-domains:
    maxItems: 1

  timer-width:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: |
      Bit width of the timer, necessary if not 16.

  "#pwm-cells":
    const: 3

required:
  - compatible
  - reg
  - clocks

allOf:
  - if:
      not:
        required:
          - "#pwm-cells"
    then:
      required:
        - interrupts

additionalProperties: false

examples:
  - |
    ttc0: ttc0@f8001000 {
        interrupt-parent = <&intc>;
        interrupts = <0 10 4>, <0 11 4>, <0 12 4>;
        compatible = "cdns,ttc";
        reg = <0xF8001000 0x1000>;
        clocks = <&cpu_clk 3>;
        timer-width = <32>;
    };

  - |
    pwm: pwm@f8002000 {
        compatible = "cdns,ttc";
        reg = <0xf8002000 0x1000>;
        clocks = <&cpu_clk 3>;
        timer-width = <32>;
        #pwm-cells = <3>;
    };