0001 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/usb/maxim,max3420-udc.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: MAXIM MAX3420/1 USB Peripheral Controller
0008
0009 maintainers:
0010 - Jassi Brar <jaswinder.singh@linaro.org>
0011
0012 description: |
0013 The controller provices USB2.0 compliant FullSpeed peripheral
0014 implementation over the SPI interface.
0015
0016 Specifications about the part can be found at:
0017 http://datasheets.maximintegrated.com/en/ds/MAX3420E.pdf
0018
0019 properties:
0020 compatible:
0021 enum:
0022 - maxim,max3420-udc
0023 - maxim,max3421-udc
0024
0025 reg:
0026 maxItems: 1
0027
0028 interrupts:
0029 items:
0030 - description: usb irq from max3420
0031 - description: vbus detection irq
0032 minItems: 1
0033
0034 interrupt-names:
0035 items:
0036 - const: udc
0037 - const: vbus
0038 minItems: 1
0039
0040 spi-max-frequency:
0041 maximum: 26000000
0042
0043 required:
0044 - compatible
0045 - reg
0046 - interrupts
0047 - interrupt-names
0048
0049 additionalProperties: false
0050
0051 examples:
0052 - |
0053 #include <dt-bindings/gpio/gpio.h>
0054 #include <dt-bindings/interrupt-controller/irq.h>
0055 spi0 {
0056 #address-cells = <1>;
0057 #size-cells = <0>;
0058
0059 udc@0 {
0060 compatible = "maxim,max3420-udc";
0061 reg = <0>;
0062 interrupt-parent = <&gpio>;
0063 interrupts = <0 IRQ_TYPE_EDGE_FALLING>, <10 IRQ_TYPE_EDGE_BOTH>;
0064 interrupt-names = "udc", "vbus";
0065 spi-max-frequency = <12500000>;
0066 };
0067 };
