On Sat, Mar 02, 2019 at 05:04:54PM +0800, Yu Chen wrote:
> This patch adds binding documentation for supporting the hi3660 usb
> phy on boards like the HiKey960.
>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Mark Rutland <mark.rutland@xxxxxxx>
> Cc: John Stultz <john.stultz@xxxxxxxxxx>
> Cc: Binghui Wang <wangbinghui@xxxxxxxxxxxxx>
> Signed-off-by: Yu Chen <chenyu56@xxxxxxxxxx>
> ---
> v1:
> * Fix some format error as suggested by Rob.
> v2:
> * Change hi3660 usb PHY to hi3660 USB PHY
> v3:
> * Make device node a subnode of usb3_otg_bc register.
> ---
> ---
> .../devicetree/bindings/phy/phy-hi3660-usb3.txt | 28 ++++++++++++++++++++++
> 1 file changed, 28 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt
>
> diff --git a/Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt b/Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt
> new file mode 100644
> index 000000000000..6096214a2bc6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt
> @@ -0,0 +1,28 @@
> +Hisilicon hi3660 USB PHY
> +-----------------------
> +
> +Required properties:
> +- compatible: should be "hisilicon,hi3660-usb-phy"
> +- #phy-cells: must be 0
> +- hisilicon,pericrg-syscon: phandle of syscon used to control phy.
> +- hisilicon,pctrl-syscon: phandle of syscon used to control phy.
> +- hisilicon,usb3-otg-bc-syscon: phandle of syscon used to control phy.
You can drop this as it is now just the parent node.
> +- hisilicon,eye-diagram-param: parameter set for phy
> +Refer to phy/phy-bindings.txt for the generic PHY binding properties
> +
> +This is a subnode of usb3_otg_bc register node.
> +
> +Example:
> + usb3_otg_bc: usb3_otg_bc@ff200000 {
> + compatible = "syscon", "simple-mfd";
This node should have a specific compatible.
> + reg = <0x0 0xff200000 0x0 0x1000>;
> +
> + usb-phy {
> + compatible = "hisilicon,hi3660-usb-phy";
> + #phy-cells = <0>;
> + hisilicon,pericrg-syscon = <&crg_ctrl>;
> + hisilicon,pctrl-syscon = <&pctrl>;
> + hisilicon,usb3-otg-bc-syscon = <&usb3_otg_bc>;
> + hisilicon,eye-diagram-param = <0x22466e4>;
> + };
> + };
> --
> 2.15.0-rc2
>
