Documentation/devicetree/bindings/usb/intel,keembay-dwc3.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/intel,keembay-dwc3.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Intel Keem Bay DWC3 USB controller
   8
   9 maintainers:
  10   - Wan Ahmad Zainie <wan.ahmad.zainie.wan.mohamad@intel.com>
  11
  12 properties:
  13   compatible:
  14     const: intel,keembay-dwc3
  15
  16   reg:
  17     maxItems: 1
  18
  19   clocks:
  20     maxItems: 4
  21
  22   clock-names:
  23     items:
  24       - const: async_master
  25       - const: ref
  26       - const: alt_ref
  27       - const: suspend
  28
  29   ranges: true
  30
  31   '#address-cells':
  32     enum: [ 1, 2 ]
  33
  34   '#size-cells':
  35     enum: [ 1, 2 ]
  36
  37 # Required child node:
  38
  39 patternProperties:
  40   "^usb@[0-9a-f]+$":
  41     $ref: snps,dwc3.yaml#
  42
  43 required:
  44   - compatible
  45   - clocks
  46   - clock-names
  47   - ranges
  48
  49 additionalProperties: false
  50
  51 examples:
  52   - |
  53     #include <dt-bindings/interrupt-controller/arm-gic.h>
  54     #include <dt-bindings/interrupt-controller/irq.h>
  55     #define KEEM_BAY_A53_AUX_USB
  56     #define KEEM_BAY_A53_AUX_USB_REF
  57     #define KEEM_BAY_A53_AUX_USB_ALT_REF
  58     #define KEEM_BAY_A53_AUX_USB_SUSPEND
  59
  60     usb {
  61           compatible = "intel,keembay-dwc3";
  62           clocks = <&scmi_clk KEEM_BAY_A53_AUX_USB>,
  63                    <&scmi_clk KEEM_BAY_A53_AUX_USB_REF>,
  64                    <&scmi_clk KEEM_BAY_A53_AUX_USB_ALT_REF>,
  65                    <&scmi_clk KEEM_BAY_A53_AUX_USB_SUSPEND>;
  66           clock-names = "async_master", "ref", "alt_ref", "suspend";
  67           ranges;
  68           #address-cells = <1>;
  69           #size-cells = <1>;
  70
  71           usb@34000000 {
  72                 compatible = "snps,dwc3";
  73                 reg = <0x34000000 0x10000>;
  74                 interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
  75                 dr_mode = "peripheral";
  76           };
  77     };