xref: /openbmc/linux/Documentation/devicetree/bindings/serio/arm,pl050.yaml (revision 97ef3551)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/serio/arm,pl050.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Arm Ltd. PrimeCell PL050 PS/2 Keyboard/Mouse Interface

maintainers:
  - Andre Przywara <andre.przywara@arm.com>

description:
  The Arm PrimeCell PS2 Keyboard/Mouse Interface (KMI) is an AMBA compliant
  peripheral that can be used to implement a keyboard or mouse interface that
  is IBM PS2 or AT compatible.

# We need a select here so we don't match all nodes with 'arm,primecell'
select:
  properties:
    compatible:
      contains:
        const: arm,pl050
  required:
    - compatible

properties:
  compatible:
    items:
      - const: arm,pl050
      - const: arm,primecell

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    items:
      - description: KMI reference clock, used to generate the bus timing
      - description: APB register access clock

  clock-names:
    items:
      - const: KMIREFCLK
      - const: apb_pclk

required:
  - compatible
  - reg
  - interrupts
  - clocks
  - clock-names

additionalProperties: false

examples:
  - |
    serio@70000 {
        compatible = "arm,pl050", "arm,primecell";
        reg = <0x070000 0x1000>;
        interrupts = <8>;
        clocks = <&mb_clk24mhz>, <&soc_smc50mhz>;
        clock-names = "KMIREFCLK", "apb_pclk";
    };

...