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-# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/bindings/pinctrl/intel,lgm-pinctrl.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Intel Lightning Mountain SoC pinmux & GPIO controller binding
-
-maintainers:
- - Rahul Tanwar <rahul.tanwar@linux.intel.com>
-
-description: |
- Pinmux & GPIO controller controls pin multiplexing & configuration including
- GPIO function selection & GPIO attributes configuration.
-
- Please refer to [1] for details of the common pinctrl bindings used by the
- client devices.
-
- [1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
-
-properties:
- compatible:
- const: intel,lgm-io
-
- reg:
- maxItems: 1
-
-# Client device subnode's properties
-patternProperties:
- '-pins$':
- type: object
- description:
- Pinctrl node's client devices use subnodes for desired pin configuration.
- Client device subnodes use below standard properties.
-
- properties:
- function:
- $ref: /schemas/types.yaml#/definitions/string
- description:
- A string containing the name of the function to mux to the group.
-
- groups:
- $ref: /schemas/types.yaml#/definitions/string-array
- description:
- An array of strings identifying the list of groups.
-
- pins:
- $ref: /schemas/types.yaml#/definitions/uint32-array
- description:
- List of pins to select with this function.
-
- pinmux:
- description: The applicable mux group.
- allOf:
- - $ref: "/schemas/types.yaml#/definitions/uint32-array"
-
- bias-pull-up:
- type: boolean
-
- bias-pull-down:
- type: boolean
-
- drive-strength:
- description: |
- Selects the drive strength for the specified pins in mA.
- 0: 2 mA
- 1: 4 mA
- 2: 8 mA
- 3: 12 mA
- allOf:
- - $ref: /schemas/types.yaml#/definitions/uint32
- - enum: [0, 1, 2, 3]
-
- slew-rate:
- type: boolean
- description: |
- Sets slew rate for specified pins.
- 0: slow slew
- 1: fast slew
-
- drive-open-drain:
- type: boolean
-
- output-enable:
- type: boolean
-
- required:
- - function
- - groups
-
- additionalProperties: false
-
-required:
- - compatible
- - reg
-
-additionalProperties: false
-
-examples:
- # Pinmux controller node
- - |
- pinctrl: pinctrl@e2880000 {
- compatible = "intel,lgm-pinctrl";
- reg = <0xe2880000 0x100000>;
-
- uart0-pins {
- pins = <64>, /* UART_RX0 */
- <65>; /* UART_TX0 */
- function = "CONSOLE_UART0";
- pinmux = <1>,
- <1>;
- groups = "CONSOLE_UART0";
- };
- };
-
-...