Documentation/devicetree/bindings/phy/allwinner,sun8i-a23-usb-phy.yaml


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102

# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/allwinner,sun8i-a23-usb-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Allwinner A23 USB PHY Device Tree Bindings

maintainers:
  - Chen-Yu Tsai <wens@csie.org>
  - Maxime Ripard <mripard@kernel.org>

properties:
  "#phy-cells":
    const: 1

  compatible:
    enum:
      - allwinner,sun8i-a23-usb-phy
      - allwinner,sun8i-a33-usb-phy

  reg:
    items:
      - description: PHY Control registers
      - description: PHY PMU1 registers

  reg-names:
    items:
      - const: phy_ctrl
      - const: pmu1

  clocks:
    items:
      - description: USB OTG PHY bus clock
      - description: USB Host 0 PHY bus clock

  clock-names:
    items:
      - const: usb0_phy
      - const: usb1_phy

  resets:
    items:
      - description: USB OTG reset
      - description: USB Host 1 Controller reset

  reset-names:
    items:
      - const: usb0_reset
      - const: usb1_reset

  usb0_id_det-gpios:
    description: GPIO to the USB OTG ID pin

  usb0_vbus_det-gpios:
    description: GPIO to the USB OTG VBUS detect pin

  usb0_vbus_power-supply:
    description: Power supply to detect the USB OTG VBUS

  usb0_vbus-supply:
    description: Regulator controlling USB OTG VBUS

  usb1_vbus-supply:
    description: Regulator controlling USB1 Host controller

required:
  - "#phy-cells"
  - compatible
  - clocks
  - clock-names
  - reg
  - reg-names
  - resets
  - reset-names

additionalProperties: false

examples:
  - |
    #include <dt-bindings/gpio/gpio.h>
    #include <dt-bindings/clock/sun8i-a23-a33-ccu.h>
    #include <dt-bindings/reset/sun8i-a23-a33-ccu.h>

    phy@1c19400 {
        #phy-cells = <1>;
        compatible = "allwinner,sun8i-a23-usb-phy";
        reg = <0x01c19400 0x10>, <0x01c1a800 0x4>;
        reg-names = "phy_ctrl", "pmu1";
        clocks = <&ccu CLK_USB_PHY0>,
                 <&ccu CLK_USB_PHY1>;
        clock-names = "usb0_phy",
                      "usb1_phy";
        resets = <&ccu RST_USB_PHY0>,
                 <&ccu RST_USB_PHY1>;
        reset-names = "usb0_reset",
                      "usb1_reset";
        usb0_id_det-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>; /* PB3 */
        usb0_vbus_power-supply = <&usb_power_supply>;
        usb0_vbus-supply = <&reg_drivevbus>;
        usb1_vbus-supply = <&reg_usb1_vbus>;
    };