xref: /freebsd/sys/contrib/device-tree/Bindings/clock/ti/ti,interface-clock.yaml (revision 5f62a964e9f8abc6a05d8338273fadd154f0a206)

# SPDX-License-Identifier: GPL-2.0-only
%YAML 1.2
---
$id: http://devicetree.org/schemas/clock/ti/ti,interface-clock.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Texas Instruments interface clock.

maintainers:
  - Tero Kristo <kristo@kernel.org>

description: |
  This clock is quite much similar to the basic gate-clock[1], however,
  it supports a number of additional features, including
  companion clock finding (match corresponding functional gate
  clock) and hardware autoidle enable / disable.

  [1] Documentation/devicetree/bindings/clock/gpio-gate-clock.yaml

properties:
  compatible:
    enum:
      - ti,omap3-interface-clock           # basic OMAP3 interface clock
      - ti,omap3-no-wait-interface-clock   # interface clock which has no hardware
                                           # capability for waiting clock to be ready
      - ti,omap3-hsotgusb-interface-clock  # interface clock with USB specific HW handling
      - ti,omap3-dss-interface-clock       # interface clock with DSS specific HW handling
      - ti,omap3-ssi-interface-clock       # interface clock with SSI specific HW handling
      - ti,am35xx-interface-clock          # interface clock with AM35xx specific HW handling
      - ti,omap2430-interface-clock        # interface clock with OMAP2430 specific HW handling

  "#clock-cells":
    const: 0

  clocks:
    maxItems: 1

  clock-output-names:
    maxItems: 1

  reg:
    maxItems: 1

  ti,bit-shift:
    description:
      bit shift for the bit enabling/disabling the clock
    $ref: /schemas/types.yaml#/definitions/uint32
    default: 0
    maximum: 31

required:
  - compatible
  - clocks
  - '#clock-cells'
  - reg

additionalProperties: false

examples:
  - |
    bus {
      #address-cells = <1>;
      #size-cells = <0>;

      aes1_ick: clock-controller@3 {
        #clock-cells = <0>;
        compatible = "ti,omap3-interface-clock";
        clocks = <&security_l4_ick2>;
        reg = <3>;
      };
    };