1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/phy/phy-rockchip-usbdp.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Rockchip USBDP Combo PHY with Samsung IP block
8
9 maintainers:
10 - Frank Wang <frank.wang@rock-chips.com>
11 - Zhang Yubing <yubing.zhang@rock-chips.com>
12
13 properties:
14 compatible:
15 enum:
16 - rockchip,rk3588-usbdp-phy
17
18 reg:
19 maxItems: 1
20
21 "#phy-cells":
22 description: |
23 Cell allows setting the type of the PHY. Possible values are:
24 - PHY_TYPE_USB3
25 - PHY_TYPE_DP
26 const: 1
27
28 clocks:
29 maxItems: 4
30
31 clock-names:
32 items:
33 - const: refclk
34 - const: immortal
35 - const: pclk
36 - const: utmi
37
38 resets:
39 maxItems: 5
40
41 reset-names:
42 items:
43 - const: init
44 - const: cmn
45 - const: lane
46 - const: pcs_apb
47 - const: pma_apb
48
49 rockchip,dp-lane-mux:
50 $ref: /schemas/types.yaml#/definitions/uint32-array
51 minItems: 2
52 maxItems: 4
53 items:
54 maximum: 3
55 description:
56 An array of physical Type-C lanes indexes. Position of an entry
57 determines the DisplayPort (DP) lane index, while the value of an entry
58 indicates physical Type-C lane. The supported DP lanes number are 2 or 4.
59 e.g. for 2 lanes DP lanes map, we could have "rockchip,dp-lane-mux = <2,
60 3>;", assuming DP lane0 on Type-C phy lane2, DP lane1 on Type-C phy
61 lane3. For 4 lanes DP lanes map, we could have "rockchip,dp-lane-mux =
62 <0, 1, 2, 3>;", assuming DP lane0 on Type-C phy lane0, DP lane1 on Type-C
63 phy lane1, DP lane2 on Type-C phy lane2, DP lane3 on Type-C phy lane3. If
64 DP lanes are mapped by DisplayPort Alt mode, this property is not needed.
65
66 rockchip,u2phy-grf:
67 $ref: /schemas/types.yaml#/definitions/phandle
68 description:
69 Phandle to the syscon managing the 'usb2 phy general register files'.
70
71 rockchip,usb-grf:
72 $ref: /schemas/types.yaml#/definitions/phandle
73 description:
74 Phandle to the syscon managing the 'usb general register files'.
75
76 rockchip,usbdpphy-grf:
77 $ref: /schemas/types.yaml#/definitions/phandle
78 description:
79 Phandle to the syscon managing the 'usbdp phy general register files'.
80
81 rockchip,vo-grf:
82 $ref: /schemas/types.yaml#/definitions/phandle
83 description:
84 Phandle to the syscon managing the 'video output general register files'.
85 When select the DP lane mapping will request its phandle.
86
87 sbu1-dc-gpios:
88 description:
89 GPIO connected to the SBU1 line of the USB-C connector via a big resistor
90 (~100K) to apply a DC offset for signalling the connector orientation.
91 maxItems: 1
92
93 sbu2-dc-gpios:
94 description:
95 GPIO connected to the SBU2 line of the USB-C connector via a big resistor
96 (~100K) to apply a DC offset for signalling the connector orientation.
97 maxItems: 1
98
99 orientation-switch:
100 description: Flag the port as possible handler of orientation switching
101 type: boolean
102
103 mode-switch:
104 description: Flag the port as possible handler of altmode switching
105 type: boolean
106
107 port:
108 $ref: /schemas/graph.yaml#/properties/port
109 description:
110 A port node to link the PHY to a TypeC controller for the purpose of
111 handling orientation switching.
112
113 required:
114 - compatible
115 - reg
116 - clocks
117 - clock-names
118 - resets
119 - reset-names
120 - "#phy-cells"
121
122 additionalProperties: false
123
124 examples:
125 - |
126 #include <dt-bindings/clock/rockchip,rk3588-cru.h>
127 #include <dt-bindings/reset/rockchip,rk3588-cru.h>
128
129 usbdp_phy0: phy@fed80000 {
130 compatible = "rockchip,rk3588-usbdp-phy";
131 reg = <0xfed80000 0x10000>;
132 #phy-cells = <1>;
133 clocks = <&cru CLK_USBDPPHY_MIPIDCPPHY_REF>,
134 <&cru CLK_USBDP_PHY0_IMMORTAL>,
135 <&cru PCLK_USBDPPHY0>,
136 <&u2phy0>;
137 clock-names = "refclk", "immortal", "pclk", "utmi";
138 resets = <&cru SRST_USBDP_COMBO_PHY0_INIT>,
139 <&cru SRST_USBDP_COMBO_PHY0_CMN>,
140 <&cru SRST_USBDP_COMBO_PHY0_LANE>,
141 <&cru SRST_USBDP_COMBO_PHY0_PCS>,
142 <&cru SRST_P_USBDPPHY0>;
143 reset-names = "init", "cmn", "lane", "pcs_apb", "pma_apb";
144 rockchip,u2phy-grf = <&usb2phy0_grf>;
145 rockchip,usb-grf = <&usb_grf>;
146 rockchip,usbdpphy-grf = <&usbdpphy0_grf>;
147 rockchip,vo-grf = <&vo0_grf>;
148 };
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