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     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 required:
  51   - compatible
  52   - reg
  53
  54 additionalProperties: false
  55
  56 examples:
  57   # Pinmux controller node
  58   - |
  59     pinctrl: pinctrl@e2880000 {
  60         compatible = "intel,lgm-io";
  61         reg = <0xe2880000 0x100000>;
  62
  63         uart0-pins {
  64              pins = <64>, /* UART_RX0 */
  65                     <65>; /* UART_TX0 */
  66              function = "CONSOLE_UART0";
  67              pinmux = <1>,
  68                       <1>;
  69              groups = "CONSOLE_UART0";
  70           };
  71     };
  72
  73 ...