xref: /linux/Documentation/devicetree/bindings/usb/maxim,max3420-udc.yaml (revision a4eb44a6435d6d8f9e642407a4a06f65eb90ca04) 
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      spi0 {
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