kyber: make trace_block_rq call consistent with documentation
[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / phy / rockchip-usb-phy.txt
1 ROCKCHIP USB2 PHY
2
3 Required properties:
4  - compatible: matching the soc type, one of
5      "rockchip,rk3066a-usb-phy"
6      "rockchip,rk3188-usb-phy"
7      "rockchip,rk3288-usb-phy"
8  - #address-cells: should be 1
9  - #size-cells: should be 0
10
11 Deprecated properties:
12  - rockchip,grf : phandle to the syscon managing the "general
13    register files" - phy should be a child of the GRF instead
14
15 Sub-nodes:
16 Each PHY should be represented as a sub-node.
17
18 Sub-nodes
19 required properties:
20 - #phy-cells: should be 0
21 - reg: PHY configure reg address offset in GRF
22                 "0x320" - for PHY attach to OTG controller
23                 "0x334" - for PHY attach to HOST0 controller
24                 "0x348" - for PHY attach to HOST1 controller
25
26 Optional Properties:
27 - clocks : phandle + clock specifier for the phy clocks
28 - clock-names: string, clock name, must be "phyclk"
29 - #clock-cells: for users of the phy-pll, should be 0
30 - reset-names: Only allow the following entries:
31  - phy-reset
32 - resets: Must contain an entry for each entry in reset-names.
33 - vbus-supply: power-supply phandle for vbus power source
34
35 Example:
36
37 grf: syscon@ff770000 {
38         compatible = "rockchip,rk3288-grf", "syscon", "simple-mfd";
39
40 ...
41
42         usbphy: phy {
43                 compatible = "rockchip,rk3288-usb-phy";
44                 #address-cells = <1>;
45                 #size-cells = <0>;
46
47                 usbphy0: usb-phy0 {
48                         #phy-cells = <0>;
49                         reg = <0x320>;
50                 };
51         };
52 };