fairchild,74hc595.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/gpio/fairchild,74hc595.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Generic 8-bit shift register
    8 
    9 maintainers:
   10   - Maxime Ripard <mripard@kernel.org>
   11 
   12 properties:
   13   compatible:
   14     enum:
   15       - fairchild,74hc595
   16       - nxp,74lvc594
   17 
   18   reg:
   19     maxItems: 1
   20 
   21   gpio-controller: true
   22 
   23   '#gpio-cells':
   24     description:
   25       The second cell is only used to specify the GPIO polarity.
   26     const: 2
   27 
   28   registers-number:
   29     $ref: /schemas/types.yaml#/definitions/uint32
   30     description: Number of daisy-chained shift registers
   31 
   32   enable-gpios:
   33     description: GPIO connected to the OE (Output Enable) pin.
   34     maxItems: 1
   35 
   36   spi-max-frequency: true
   37 
   38 patternProperties:
   39   "^(hog-[0-9]+|.+-hog(-[0-9]+)?)$":
   40     type: object
   41 
   42     properties:
   43       gpio-hog: true
   44       gpios: true
   45       output-high: true
   46       output-low: true
   47       line-name: true
   48 
   49     required:
   50       - gpio-hog
   51       - gpios
   52 
   53     additionalProperties: false
   54 
   55 required:
   56   - compatible
   57   - reg
   58   - gpio-controller
   59   - '#gpio-cells'
   60   - registers-number
   61 
   62 additionalProperties: false
   63 
   64 examples:
   65   - |
   66     spi {
   67             #address-cells = <1>;
   68             #size-cells = <0>;
   69 
   70             gpio5: gpio5@0 {
   71                     compatible = "fairchild,74hc595";
   72                     reg = <0>;
   73                     gpio-controller;
   74                     #gpio-cells = <2>;
   75                     registers-number = <4>;
   76                     spi-max-frequency = <100000>;
   77             };
   78     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/gpio/fairchild,74hc595.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/gpio/fairchild,74hc595.yaml