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    Subject[PATCH v9 1/4] Documentation: bindings: add DT documentation for Rockchip USB2PHY
    Date
    Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
    Acked-by: Rob Herring <robh@kernel.org>
    Reviewed-by: Heiko Stuebner <heiko@sntech.de>
    ---

    Changes in v9: None

    Changes in v8: None

    Changes in v7: None

    Changes in v6:
    - Changed '_' to '-' for otg-id and otg-bvalid property.

    Changes in v5:
    - Added 'reg' property to identify the different phy-blocks.

    Changes in v4:
    - Used 'phy-supply' instead of 'vbus_*-supply'.

    Changes in v3:
    - Added 'clocks' and 'clock-names' optional properties.
    - Specified 'otg-port' and 'host-port' as the sub-node name.

    Changes in v2:
    - Changed vbus_host optional property from gpio to regulator.
    - Specified vbus_otg-supply optional property.
    - Specified otg_id and otg_bvalid property.

    .../bindings/phy/phy-rockchip-inno-usb2.txt | 64 ++++++++++++++++++++
    1 file changed, 64 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt

    diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
    new file mode 100644
    index 0000000..3c29c77
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
    @@ -0,0 +1,64 @@
    +ROCKCHIP USB2.0 PHY WITH INNO IP BLOCK
    +
    +Required properties (phy (parent) node):
    + - compatible : should be one of the listed compatibles:
    + * "rockchip,rk3366-usb2phy"
    + * "rockchip,rk3399-usb2phy"
    + - reg : the address offset of grf for usb-phy configuration.
    + - #clock-cells : should be 0.
    + - clock-output-names : specify the 480m output clock name.
    +
    +Optional properties:
    + - clocks : phandle + phy specifier pair, for the input clock of phy.
    + - clock-names : input clock name of phy, must be "phyclk".
    +
    +Required nodes : a sub-node is required for each port the phy provides.
    + The sub-node name is used to identify host or otg port,
    + and shall be the following entries:
    + * "otg-port" : the name of otg port.
    + * "host-port" : the name of host port.
    +
    +Required properties (port (child) node):
    + - #phy-cells : must be 0. See ./phy-bindings.txt for details.
    + - interrupts : specify an interrupt for each entry in interrupt-names.
    + - interrupt-names : a list which shall be the following entries:
    + * "otg-id" : for the otg id interrupt.
    + * "otg-bvalid" : for the otg vbus interrupt.
    + * "linestate" : for the host/otg linestate interrupt.
    +
    +Optional properties:
    + - phy-supply : phandle to a regulator that provides power to VBUS.
    + See ./phy-bindings.txt for details.
    +
    +Example:
    +
    +grf: syscon@ff770000 {
    + compatible = "rockchip,rk3366-grf", "syscon", "simple-mfd";
    + #address-cells = <1>;
    + #size-cells = <1>;
    +
    +...
    +
    + u2phy: usb2-phy@700 {
    + compatible = "rockchip,rk3366-usb2phy";
    + reg = <0x700 0x2c>;
    + #clock-cells = <0>;
    + clock-output-names = "sclk_otgphy0_480m";
    +
    + u2phy_otg: otg-port {
    + #phy-cells = <0>;
    + interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
    + <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
    + <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "otg-id", "otg-bvalid", "linestate";
    + status = "okay";
    + };
    +
    + u2phy_host: host-port {
    + #phy-cells = <0>;
    + interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
    + interrupt-names = "linestate";
    + status = "okay";
    + };
    + };
    +};
    --
    1.7.9.5

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