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SubjectAw: Re: [PATCH v5 3/5] arm64: dts: rockchip: add rk356x dwc3 usb3 nodes
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Tested on mediatek board (mt7623/bpi-r2) and there xhci is working.
So it is no problem in core/protocol and specific to rockchip xhci driver.

at least i nailed it down to these 2 commits in drivers/usb/dwc3/core.c, without them it works

5114c3ee2487 2022-01-27 usb: dwc3: Calculate REFCLKPER based on reference clock
33fb697ec7e5 2022-01-27 usb: dwc3: Get clocks individually

regards Frank


> Gesendet: Samstag, 09. April 2022 um 01:39 Uhr
> Von: "Peter Geis" <pgwipeout@gmail.com>

> On Fri, Apr 8, 2022 at 12:14 PM Frank Wunderlich
> <frank-w@public-files.de> wrote:

> > seems like usb (2+3) is broken in 5.18-rc1
> >
> > i see controllers, ports are powered, but no device detection.
> >
> > maybe anyone else have same behaviour with different board?
>
> Yes, it seems you are correct, there has been a regression with xhci
> between v5.17 and v5.18.
> I'm bisecting now.

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