media: dt-bindings: cec: convert common CEC properties to DT schema

Common bindings for HDMI CEC adapters

- hdmi-phandle: phandle to the HDMI controller.

- needs-hpd: if present the CEC support is only available when the HPD

  is high. Some boards only let the CEC pin through if the HPD is high,

  for example if there is a level converter that uses the HPD to power

  up or down.

# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause

%YAML 1.2

---

$id: http://devicetree.org/schemas/media/cec/cec-common.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#

title: HDMI CEC Adapters Common Properties

maintainers:

  - Hans Verkuil <hverkuil@xs4all.nl>

properties:

  $nodename:

    pattern: "^cec(@[0-9a-f]+|-[0-9]+)?$"

  hdmi-phandle:

    $ref: /schemas/types.yaml#/definitions/phandle

    description:

      Phandle to the HDMI controller.

  needs-hpd:

    type: boolean

    description:

      The CEC support is only available when the HPD is high. Some boards only

      let the CEC pin through if the HPD is high, for example if there is a

      level converter that uses the HPD to power up or down.

additionalProperties: true

W:	http://linuxtv.org

T:	git git://linuxtv.org/media_tree.git

F:	Documentation/ABI/testing/debugfs-cec-error-inj

F:	Documentation/devicetree/bindings/media/cec.txt

F:	Documentation/devicetree/bindings/media/cec/cec-common.yaml

F:	Documentation/driver-api/media/cec-core.rst

F:	Documentation/userspace-api/media/cec

F:	drivers/media/cec/