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 maxItems: 2 34 35 interrupt-names: 36 items: 37 - const: udc 38 - const: vbus 39 minItems: 1 40 maxItems: 2 41 42 spi-max-frequency: 43 maximum: 26000000 44 45required: 46 - compatible 47 - reg 48 - interrupts 49 - interrupt-names 50 51additionalProperties: false 52 53examples: 54 - | 55 #include <dt-bindings/gpio/gpio.h> 56 #include <dt-bindings/interrupt-controller/irq.h> 57 spi0 { 58 #address-cells = <1>; 59 #size-cells = <0>; 60 61 udc@0 { 62 compatible = "maxim,max3420-udc"; 63 reg = <0>; 64 interrupt-parent = <&gpio>; 65 interrupts = <0 IRQ_TYPE_EDGE_FALLING>, <10 IRQ_TYPE_EDGE_BOTH>; 66 interrupt-names = "udc", "vbus"; 67 spi-max-frequency = <12500000>; 68 }; 69 }; 70