socionext,uniphier-glue-reset.yaml

  1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/reset/socionext,uniphier-glue-reset.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Socionext UniPhier peripheral core reset in glue layer
  8
  9description: |
 10  Some peripheral core reset belongs to its own glue layer. Before using
 11  this core reset, it is necessary to control the clocks and resets to
 12  enable this layer. These clocks and resets should be described in each
 13  property.
 14
 15maintainers:
 16  - Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
 17
 18properties:
 19  compatible:
 20    enum:
 21      - socionext,uniphier-pro4-usb3-reset
 22      - socionext,uniphier-pro5-usb3-reset
 23      - socionext,uniphier-pxs2-usb3-reset
 24      - socionext,uniphier-ld20-usb3-reset
 25      - socionext,uniphier-pxs3-usb3-reset
 26      - socionext,uniphier-nx1-usb3-reset
 27      - socionext,uniphier-pro4-ahci-reset
 28      - socionext,uniphier-pxs2-ahci-reset
 29      - socionext,uniphier-pxs3-ahci-reset
 30
 31  reg:
 32    maxItems: 1
 33
 34  "#reset-cells":
 35    const: 1
 36
 37  clocks:
 38    minItems: 1
 39    maxItems: 2
 40
 41  clock-names:
 42    minItems: 1
 43    maxItems: 2
 44
 45  resets:
 46    minItems: 1
 47    maxItems: 2
 48
 49  reset-names:
 50    minItems: 1
 51    maxItems: 2
 52
 53allOf:
 54  - if:
 55      properties:
 56        compatible:
 57          contains:
 58            enum:
 59              - socionext,uniphier-pro4-usb3-reset
 60              - socionext,uniphier-pro5-usb3-reset
 61              - socionext,uniphier-pro4-ahci-reset
 62    then:
 63      properties:
 64        clocks:
 65          minItems: 2
 66          maxItems: 2
 67        clock-names:
 68          items:
 69            - const: gio
 70            - const: link
 71        resets:
 72          minItems: 2
 73          maxItems: 2
 74        reset-names:
 75          items:
 76            - const: gio
 77            - const: link
 78    else:
 79      properties:
 80        clocks:
 81          maxItems: 1
 82        clock-names:
 83          const: link
 84        resets:
 85          maxItems: 1
 86        reset-names:
 87          const: link
 88
 89additionalProperties: false
 90
 91required:
 92  - compatible
 93  - reg
 94  - "#reset-cells"
 95  - clocks
 96  - clock-names
 97  - resets
 98  - reset-names
 99
100examples:
101  - |
102    usb_rst: reset-controller@0 {
103        compatible = "socionext,uniphier-ld20-usb3-reset";
104        reg = <0x0 0x4>;
105        #reset-cells = <1>;
106        clock-names = "link";
107        clocks = <&sys_clk 14>;
108        reset-names = "link";
109        resets = <&sys_rst 14>;
110    };