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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/pinctrl/intel,lgm-io.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Intel Lightning Mountain SoC pinmux & GPIO controller binding
    8 
    9 maintainers:
   10   - Rahul Tanwar <rahul.tanwar@linux.intel.com>
   11 
   12 description: |
   13   Pinmux & GPIO controller controls pin multiplexing & configuration including
   14   GPIO function selection & GPIO attributes configuration.
   15 
   16 properties:
   17   compatible:
   18     const: intel,lgm-io
   19 
   20   reg:
   21     maxItems: 1
   22 
   23 # Client device subnode's properties
   24 patternProperties:
   25   '-pins$':
   26     type: object
   27     description:
   28       Pinctrl node's client devices use subnodes for desired pin configuration.
   29       Client device subnodes use below standard properties.
   30     $ref: pinmux-node.yaml#
   31 
   32     properties:
   33       function: true
   34       groups: true
   35       pins: true
   36       pinmux: true
   37       bias-pull-up: true
   38       bias-pull-down: true
   39       drive-strength: true
   40       slew-rate: true
   41       drive-open-drain: true
   42       output-enable: true
   43 
   44     required:
   45       - function
   46       - groups
   47 
   48     additionalProperties: false
   49 
   50 allOf:
   51   - $ref: "pinctrl.yaml#"
   52 
   53 required:
   54   - compatible
   55   - reg
   56 
   57 additionalProperties: false
   58 
   59 examples:
   60   # Pinmux controller node
   61   - |
   62     pinctrl: pinctrl@e2880000 {
   63         compatible = "intel,lgm-io";
   64         reg = <0xe2880000 0x100000>;
   65 
   66         uart0-pins {
   67              pins = <64>, /* UART_RX0 */
   68                     <65>; /* UART_TX0 */
   69              function = "CONSOLE_UART0";
   70              pinmux = <1>,
   71                       <1>;
   72              groups = "CONSOLE_UART0";
   73           };
   74     };
   75 
   76 ...
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