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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/usb/maxim,max3420-udc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MAXIM MAX3420/1 USB Peripheral Controller
maintainers:
- Jassi Brar <jaswinder.singh@linaro.org>
description: |
The controller provices USB2.0 compliant FullSpeed peripheral
implementation over the SPI interface.
Specifications about the part can be found at:
http://datasheets.maximintegrated.com/en/ds/MAX3420E.pdf
properties:
compatible:
enum:
- maxim,max3420-udc
- maxim,max3421-udc
reg:
maxItems: 1
interrupts:
items:
- description: usb irq from max3420
- description: vbus detection irq
minItems: 1
maxItems: 2
interrupt-names:
items:
- const: udc
- const: vbus
minItems: 1
maxItems: 2
spi-max-frequency:
maximum: 26000000
required:
- compatible
- reg
- interrupts
- interrupt-names
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
spi0 {
#address-cells = <1>;
#size-cells = <0>;
udc@0 {
compatible = "maxim,max3420-udc";
reg = <0>;
interrupt-parent = <&gpio>;
interrupts = <0 IRQ_TYPE_EDGE_FALLING>, <10 IRQ_TYPE_EDGE_BOTH>;
interrupt-names = "udc", "vbus";
spi-max-frequency = <12500000>;
};
};
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