Hi, On Tue, 2019-02-19 at 09:50 +0800, Chen Yu wrote: > Hi, > > On 2019/2/19 4:18, Rob Herring wrote: > > On Mon, Feb 18, 2019 at 07:23:01PM +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 > >> --- > >> --- > >> .../devicetree/bindings/phy/phy-hi3660-usb3.txt | 21 +++++++++++++++++++++ > >> 1 file changed, 21 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..f9a3d56cfdd2 > >> --- /dev/null > >> +++ b/Documentation/devicetree/bindings/phy/phy-hi3660-usb3.txt > >> @@ -0,0 +1,21 @@ > >> +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. > >> +- hisilicon,eye-diagram-param: parameter set for phy > >> +Refer to phy/phy-bindings.txt for the generic PHY binding properties > >> + > >> +Example: > >> + 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>; > > > > Are most of the registers within one of these blocks? If so, make this > > node a child of that node. > I met a problem when I made this node a child of the syscon node, > the driver "phy-hi3660-usb3" was not probed. > Do you have any idea about how to make it probed when it is a child node? call of_platform_populate() in parent node's driver, but I don't know whether it's a standard way > > > >> + hisilicon,eye-diagram-param = <0x22466e4>; > >> + }; > >> -- > >> 2.15.0-rc2 > >> > > > > . > > > > Thanks > Yu Chen >