dt-bindings: Create DT bindings for PATA controllers

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/ata/pata-common.yaml#

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

title: Common Properties for Parallel AT attachment (PATA) controllers

maintainers:

  - Linus Walleij <linus.walleij@linaro.org>

description: |

  This document defines device tree properties common to most Parallel

  ATA (PATA, also known as IDE) AT attachment storage devices.

  It doesn't constitue a device tree binding specification by itself but is

  meant to be referenced by device tree bindings.

  The PATA (IDE) controller-specific device tree bindings are responsible for

  defining whether each property is required or optional.

properties:

  $nodename:

    pattern: "^ide(@.*)?$"

    description:

      Specifies the host controller node. PATA host controller nodes are named

      "ide".

  "#address-cells":

    const: 1

  "#size-cells":

    const: 0

patternProperties:

  "^ide-port@[0-1]$":

    description: |

      DT nodes for ports connected on the PATA host. The master drive will have

      ID number 0 and the slave drive will have ID number 1. The PATA port

      nodes will be named "ide-port".

    type: object

    properties:

      reg:

        minimum: 0

        maximum: 1

        description:

          The ID number of the drive port, 0 for the master port and 1 for the

          slave port.

...