58 lines
1.1 KiB
YAML
58 lines
1.1 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/pinctrl/pinctrl-multiplexer.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Generic pinctrl device for on-board MUX Chips
|
|
|
|
maintainers:
|
|
- Frank Li <Frank.Li@nxp.com>
|
|
|
|
description:
|
|
Generic pinctrl device for on-board MUX Chips, which switch SoC signals
|
|
between different peripherals (e.g. MMC and UART).
|
|
|
|
The MUX select lines are often driven by a I2C GPIO expander.
|
|
|
|
properties:
|
|
compatible:
|
|
const: pinctrl-multiplexer
|
|
|
|
patternProperties:
|
|
'-grp$':
|
|
type: object
|
|
additionalProperties: false
|
|
properties:
|
|
mux-states:
|
|
maxItems: 1
|
|
|
|
required:
|
|
- mux-states
|
|
|
|
required:
|
|
- compatible
|
|
|
|
allOf:
|
|
- $ref: pinctrl.yaml#
|
|
|
|
unevaluatedProperties: false
|
|
|
|
examples:
|
|
- |
|
|
pinctrl-mux {
|
|
compatible = "pinctrl-multiplexer";
|
|
|
|
uart-grp {
|
|
mux-states = <&mux 0>;
|
|
};
|
|
|
|
spi-grp {
|
|
mux-states = <&mux 1>;
|
|
};
|
|
|
|
i2c-grp {
|
|
mux-states = <&mux 2>;
|
|
};
|
|
};
|