ti,omap-gpio.yaml

  1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/gpio/ti,omap-gpio.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: OMAP GPIO controller
  8
  9maintainers:
 10  - Grygorii Strashko <grygorii.strashko@ti.com>
 11
 12description: |
 13  The general-purpose interface combines general-purpose input/output (GPIO) banks.
 14  Each GPIO banks provides up to 32 dedicated general-purpose pins with input
 15  and output capabilities; interrupt generation in active mode and wake-up
 16  request generation in idle mode upon the detection of external events.
 17
 18properties:
 19  compatible:
 20    oneOf:
 21      - enum:
 22          - ti,omap2-gpio
 23          - ti,omap3-gpio
 24          - ti,omap4-gpio
 25      - items:
 26          - const: ti,am4372-gpio
 27          - const: ti,omap4-gpio
 28
 29  reg:
 30    maxItems: 1
 31
 32  gpio-controller: true
 33
 34  '#gpio-cells':
 35    const: 2
 36
 37  interrupt-controller: true
 38
 39  '#interrupt-cells':
 40    const: 2
 41
 42  interrupts:
 43    maxItems: 1
 44
 45  gpio-ranges: true
 46
 47  gpio-line-names:
 48    minItems: 1
 49    maxItems: 32
 50
 51  ti,gpio-always-on:
 52    $ref: /schemas/types.yaml#/definitions/flag
 53    description:
 54      Indicates if a GPIO bank is always powered and will never lose its logic state.
 55
 56  ti,hwmods:
 57    $ref: /schemas/types.yaml#/definitions/string
 58    deprecated: true
 59    description:
 60      Name of the hwmod associated with the GPIO. Needed on some legacy OMAP
 61      SoCs which have not been converted to the ti,sysc interconnect hierarchy.
 62
 63  ti,no-reset-on-init:
 64    $ref: /schemas/types.yaml#/definitions/flag
 65    deprecated: true
 66    description:
 67      Do not reset on init. Used with ti,hwmods on some legacy OMAP SoCs which
 68      have not been converted to the ti,sysc interconnect hierarchy.
 69
 70patternProperties:
 71  "^(.+-hog(-[0-9]+)?)$":
 72    type: object
 73
 74    required:
 75      - gpio-hog
 76
 77required:
 78  - compatible
 79  - reg
 80  - gpio-controller
 81  - "#gpio-cells"
 82  - interrupt-controller
 83  - "#interrupt-cells"
 84  - interrupts
 85
 86additionalProperties: false
 87
 88examples:
 89  - |
 90    #include <dt-bindings/gpio/gpio.h>
 91
 92    gpio0: gpio@0 {
 93        compatible = "ti,omap4-gpio";
 94        reg = <0x0 0x1000>;
 95        gpio-controller;
 96        #gpio-cells = <2>;
 97        interrupt-controller;
 98        #interrupt-cells = <2>;
 99        interrupts = <96>;
100        ti,gpio-always-on;
101
102        ls-buf-en-hog {
103            gpio-hog;
104            gpios = <10 GPIO_ACTIVE_HIGH>;
105            output-high;
106            line-name = "LS_BUF_EN";
107        };
108    };