Hi Rob, Thanks for the review. I guess we need to drop this patch, if the solution proposed by Shimoda-San is acceptable by everyone. The same result can be achieved without using this driver. I have posted V3 based on this. please see the link below. https://patchwork.kernel.org/patch/10883263/ ehci-r8a77479 driver = generic ehci driver + phy initialization code of rcar-gen3-usb2 driver. Regards, Biju > Subject: Re: [PATCH 03/12] dt-bindings: usb: ehci-r8a77470 devicetree > binding document > > On Mon, 1 Apr 2019 13:53:43 +0100, Biju Das wrote: > > Add device tree binding document for Renesas r8a77470(a.k.a RZ/G1C) > > on-chip EHCI controller driver. > > > > Signed-off-by: Biju Das <biju.das@xxxxxxxxxxxxxx> > > --- > > V1-->V2 > > * New patch > > --- > > .../devicetree/bindings/usb/ehci-r8a77470.txt | 35 > ++++++++++++++++++++++ > > 1 file changed, 35 insertions(+) > > create mode 100644 > > Documentation/devicetree/bindings/usb/ehci-r8a77470.txt > > > > Reviewed-by: Rob Herring <robh@xxxxxxxxxx>