1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/usb/maxim,max3420-udc.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: MAXIM MAX3420/1 USB Peripheral Controller 8 9maintainers: 10 - Jassi Brar <jaswinder.singh@linaro.org> 11 12description: | 13 The controller provices USB2.0 compliant FullSpeed peripheral 14 implementation over the SPI interface. 15 16 Specifications about the part can be found at: 17 http://datasheets.maximintegrated.com/en/ds/MAX3420E.pdf 18 19properties: 20 compatible: 21 enum: 22 - maxim,max3420-udc 23 - maxim,max3421-udc 24 25 reg: 26 maxItems: 1 27 28 interrupts: 29 items: 30 - description: usb irq from max3420 31 - description: vbus detection irq 32 minItems: 1 33 34 interrupt-names: 35 items: 36 - const: udc 37 - const: vbus 38 minItems: 1 39 40 spi-max-frequency: 41 maximum: 26000000 42 43required: 44 - compatible 45 - reg 46 - interrupts 47 - interrupt-names 48 49additionalProperties: false 50 51examples: 52 - | 53 #include <dt-bindings/gpio/gpio.h> 54 #include <dt-bindings/interrupt-controller/irq.h> 55 spi { 56 #address-cells = <1>; 57 #size-cells = <0>; 58 59 udc@0 { 60 compatible = "maxim,max3420-udc"; 61 reg = <0>; 62 interrupt-parent = <&gpio>; 63 interrupts = <0 IRQ_TYPE_EDGE_FALLING>, <10 IRQ_TYPE_EDGE_BOTH>; 64 interrupt-names = "udc", "vbus"; 65 spi-max-frequency = <12500000>; 66 }; 67 }; 68