[PATCH] dt-bindings: usb: dwc3: xilinx: Add interrupt-names to include hibernation interrupt

Rob Herring robh at kernel.org
Thu Apr 27 07:18:14 PDT 2023


On Fri, Apr 21, 2023 at 8:28 AM Mehta, Piyush <piyush.mehta at amd.com> wrote:
>
> Hi
>
> > -----Original Message-----
> > From: Rob Herring <robh at kernel.org>
> > Sent: Wednesday, April 19, 2023 12:10 AM
> > To: Mehta, Piyush <piyush.mehta at amd.com>
> > Cc: gregkh at linuxfoundation.org; krzysztof.kozlowski+dt at linaro.org;
> > michal.simek at xilinx.com; linux-usb at vger.kernel.org;
> > devicetree at vger.kernel.org; linux-kernel at vger.kernel.org; Simek, Michal
> > <michal.simek at amd.com>; Paladugu, Siva Durga Prasad
> > <siva.durga.prasad.paladugu at amd.com>; linux-arm-
> > kernel at lists.infradead.org; git (AMD-Xilinx) <git at amd.com>
> > Subject: Re: [PATCH] dt-bindings: usb: dwc3: xilinx: Add interrupt-names to
> > include hibernation interrupt
> >
> > On Wed, Apr 12, 2023 at 11:38:43AM +0530, Piyush Mehta wrote:
> > > The hibernation feature enabled for Xilinx Versal NET SoC in DWC3 IP.
> > > Added host mode interrupts and "usb-wakeup" interrupt-names optional
> > > property in the binding schema to capture remote-wakeup and connect/
> > > disconnect event in the hibernation state.
> > >
> > > Xilinx dwc3-core uses "host" and "otg" interrupts interrupt-names DT
> > > properties from dwc3-core.
> >
> > Is wakeup really not implemented in the DWC3 core, but outside it?
>
> Wakeup is implemented inside the dwc3-core.

Then it goes in the dwc3 node.

> Initially we planned to implement wakeup interrupt name/interrupt optional property in the dwc3-core.
> However, looking at other vendor wakeup interrupt implementation (Commit: dd566faebe9f dt-bindings: usb: qcom,dwc3: refine interrupt requirements)
> we moved wakeup property to xilinx USB binding.

That one looks like the phy implements wake-up? I don't know really,
but doesn't seem like one to copy.

Rob



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