Documentation/devicetree/bindings/usb/cypress,hx3.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/usb/cypress,hx3.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Cypress HX3 USB 3.0 hub controller family
   8
   9 maintainers:
  10   - Benjamin Bara <benjamin.bara@skidata.com>
  11
  12 allOf:
  13   - $ref: usb-device.yaml#
  14
  15 properties:
  16   compatible:
  17     enum:
  18       - usb4b4,6504
  19       - usb4b4,6506
  20
  21   reg: true
  22
  23   reset-gpios:
  24     items:
  25       - description: GPIO specifier for RESETN pin.
  26
  27   vdd-supply:
  28     description:
  29       1V2 power supply (VDD_EFUSE, AVDD12, DVDD12).
  30
  31   vdd2-supply:
  32     description:
  33       3V3 power supply (AVDD33, VDD_IO).
  34
  35   peer-hub:
  36     $ref: /schemas/types.yaml#/definitions/phandle
  37     description:
  38       phandle to the peer hub on the controller.
  39
  40 required:
  41   - compatible
  42   - reg
  43   - peer-hub
  44   - vdd-supply
  45   - vdd2-supply
  46
  47 additionalProperties: false
  48
  49 examples:
  50   - |
  51     #include <dt-bindings/gpio/gpio.h>
  52
  53     usb {
  54         dr_mode = "host";
  55         #address-cells = <1>;
  56         #size-cells = <0>;
  57
  58         /* 2.0 hub on port 1 */
  59         hub_2_0: hub@1 {
  60           compatible = "usb4b4,6504";
  61           reg = <1>;
  62           peer-hub = <&hub_3_0>;
  63           reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
  64           vdd-supply = <&reg_1v2_usb>;
  65           vdd2-supply = <&reg_3v3_usb>;
  66         };
  67
  68         /* 3.0 hub on port 2 */
  69         hub_3_0: hub@2 {
  70           compatible = "usb4b4,6506";
  71           reg = <2>;
  72           peer-hub = <&hub_2_0>;
  73           reset-gpios = <&gpio1 11 GPIO_ACTIVE_LOW>;
  74           vdd-supply = <&reg_1v2_usb>;
  75           vdd2-supply = <&reg_3v3_usb>;
  76         };
  77     };