ti,omap-gpio.yaml

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    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 
    7 title: OMAP GPIO controller bindings
    8 
    9 maintainers:
   10   - Grygorii Strashko <grygorii.strashko@ti.com>
   11 
   12 description: |
   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 
   18 properties:
   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 hierarachy.
   62 
   63   ti,no-reset-on-init:
   64     $ref: /schemas/types.yaml#/definitions/flag
   65     deprecated: true
   66     description:
   67       Do not reset on init. Used with ti,hwmods on some legacy OMAP SoCs which
   68       have not been converted to the ti,sysc interconnect hierarachy.
   69 
   70 patternProperties:
   71   "^(.+-hog(-[0-9]+)?)$":
   72     type: object
   73 
   74     required:
   75       - gpio-hog
   76 
   77 required:
   78   - compatible
   79   - reg
   80   - gpio-controller
   81   - "#gpio-cells"
   82   - interrupt-controller
   83   - "#interrupt-cells"
   84   - interrupts
   85 
   86 additionalProperties: false
   87 
   88 examples:
   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     };

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