Documentation/devicetree/bindings/pinctrl/intel,lgm-io.yaml

   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     allOf:
  28       - $ref: pincfg-node.yaml#
  29       - $ref: pinmux-node.yaml#
  30     description:
  31       Pinctrl node's client devices use subnodes for desired pin configuration.
  32       Client device subnodes use below standard properties.
  33
  34     properties:
  35       function: true
  36       groups: true
  37       pins: true
  38       pinmux: true
  39       bias-pull-up: true
  40       bias-pull-down: true
  41       drive-strength: true
  42       slew-rate: true
  43       drive-open-drain: true
  44       output-enable: true
  45
  46     required:
  47       - function
  48       - groups
  49
  50     additionalProperties: false
  51
  52 required:
  53   - compatible
  54   - reg
  55
  56 additionalProperties: false
  57
  58 examples:
  59   # Pinmux controller node
  60   - |
  61     pinctrl: pinctrl@e2880000 {
  62         compatible = "intel,lgm-io";
  63         reg = <0xe2880000 0x100000>;
  64
  65         uart0-pins {
  66              pins = <64>, /* UART_RX0 */
  67                     <65>; /* UART_TX0 */
  68              function = "CONSOLE_UART0";
  69              pinmux = <1>,
  70                       <1>;
  71              groups = "CONSOLE_UART0";
  72           };
  73     };
  74
  75 ...