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|
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/pinctrl/starfive,jh7110-aon-pinctrl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: StarFive JH7110 AON Pin Controller
description: |
Bindings for the JH7110 RISC-V SoC from StarFive Technology Ltd.
Out of the SoC's many pins only the ones named PAD_RGPIO0 to PAD_RGPIO3
can be multiplexed and have configurable bias, drive strength,
schmitt trigger etc.
Some peripherals such as PWM have their I/O go through the 4 "GPIOs".
maintainers:
- Jianlong Huang <jianlong.huang@starfivetech.com>
properties:
compatible:
const: starfive,jh7110-aon-pinctrl
reg:
maxItems: 1
resets:
maxItems: 1
interrupts:
maxItems: 1
interrupt-controller: true
'#interrupt-cells':
const: 2
gpio-controller: true
'#gpio-cells':
const: 2
patternProperties:
'-[0-9]+$':
type: object
additionalProperties: false
patternProperties:
'-pins$':
type: object
description: |
A pinctrl node should contain at least one subnode representing the
pinctrl groups available on the machine. 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/disable, slew-rate and drive strength.
allOf:
- $ref: /schemas/pinctrl/pincfg-node.yaml
- $ref: /schemas/pinctrl/pinmux-node.yaml
additionalProperties: false
properties:
pinmux:
description: |
The list of GPIOs and their mux settings that properties in the
node apply to. This should be set using the GPIOMUX macro.
bias-disable: true
bias-pull-up:
type: boolean
bias-pull-down:
type: boolean
drive-strength:
enum: [ 2, 4, 8, 12 ]
input-enable: true
input-disable: true
input-schmitt-enable: true
input-schmitt-disable: true
slew-rate:
maximum: 1
required:
- compatible
- reg
- interrupts
- interrupt-controller
- '#interrupt-cells'
- gpio-controller
- '#gpio-cells'
additionalProperties: false
examples:
- |
pinctrl@17020000 {
compatible = "starfive,jh7110-aon-pinctrl";
reg = <0x17020000 0x10000>;
resets = <&aoncrg 2>;
interrupts = <85>;
interrupt-controller;
#interrupt-cells = <2>;
gpio-controller;
#gpio-cells = <2>;
pwm-0 {
pwm-pins {
pinmux = <0xff030802>;
bias-disable;
drive-strength = <12>;
input-disable;
input-schmitt-disable;
slew-rate = <0>;
};
};
};
...
|
