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|
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/sophgo,sg2042-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Sophgo SG2042 Pin Controller
maintainers:
- Inochi Amaoto <inochiama@outlook.com>
properties:
compatible:
enum:
- sophgo,sg2042-pinctrl
- sophgo,sg2044-pinctrl
reg:
maxItems: 1
patternProperties:
'-cfg$':
type: object
description:
A pinctrl node should contain at least one subnode representing the
pinctrl groups available on the machine.
additionalProperties: false
patternProperties:
'-pins$':
type: object
description: |
Each subnode will list the pins it needs, and how they should
be configured, with regard to muxer configuration, bias input
enable/disable, input schmitt trigger enable, drive strength
output enable/disable state. For configuration detail,
refer to https://github.com/sophgo/sophgo-doc/.
allOf:
- $ref: pincfg-node.yaml#
- $ref: pinmux-node.yaml#
properties:
pinmux:
description: |
The list of GPIOs and their mux settings that properties in the
node apply to. This should be set using the PINMUX macro.
bias-disable: true
bias-pull-up:
type: boolean
bias-pull-down:
type: boolean
drive-strength-microamp:
description: typical current when output low level.
input-schmitt-enable: true
input-schmitt-disable: true
required:
- pinmux
additionalProperties: false
required:
- compatible
- reg
allOf:
- if:
properties:
compatible:
contains:
const: sophgo,sg2042-pinctrl
then:
patternProperties:
'-cfg$':
patternProperties:
'-pins$':
properties:
drive-strength-microamp:
enum: [ 5400, 8100, 10700, 13400,
16100, 18800, 21400, 24100,
26800, 29400, 32100, 34800,
37400, 40100, 42800, 45400 ]
- if:
properties:
compatible:
contains:
const: sophgo,sg2044-pinctrl
then:
patternProperties:
'-cfg$':
patternProperties:
'-pins$':
properties:
drive-strength-microamp:
enum: [ 3200, 6400, 9600, 12700,
15900, 19100, 22200, 25300,
29500, 32700, 35900, 39000,
42000, 45200, 48300, 51400]
additionalProperties: false
examples:
- |
#include <dt-bindings/pinctrl/pinctrl-sg2042.h>
pinctrl@30011000 {
compatible = "sophgo,sg2042-pinctrl";
reg = <30011000 0x1000>;
uart0_cfg: uart0-cfg {
uart0-pins {
pinmux = <PINMUX(PIN_UART0_TX, 0)>,
<PINMUX(PIN_UART0_RX, 0)>;
bias-pull-up;
drive-strength-microamp = <13400>;
};
};
};
...
|
