netdev - Re: Regression with commit e532a096be0e ("net: usb: asix: ax88772: add phylib support")

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Message-ID: <20210817090920.7wviv7fsfzyhli5t@pengutronix.de>
Date:   Tue, 17 Aug 2021 11:09:20 +0200
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     Jarkko Nikula <jarkko.nikula@...ux.intel.com>
Cc:     Jakub Kicinski <kuba@...nel.org>,
        Oleksij Rempel <linux@...pel-privat.de>,
        netdev@...r.kernel.org, linux-usb@...r.kernel.org,
        "David S. Miller" <davem@...emloft.net>
Subject: Re: Regression with commit e532a096be0e ("net: usb: asix: ax88772:
 add phylib support")

On Tue, Aug 17, 2021 at 11:23:40AM +0300, Jarkko Nikula wrote:
> Hi
> 
> On 8/16/21 7:18 PM, Oleksij Rempel wrote:
> > > > v5.13 works ok. v5.14-rc1 and today's head 761c6d7ec820 ("Merge tag
> > > > 'arc-5.14-rc6' of
> > > > git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc") show the
> > > > regression.
> > > > 
> > > > I bisected regression into e532a096be0e ("net: usb: asix: ax88772: add
> > > > phylib support").
> > > 
> > It sounds like issue which was fixed with the patch:
> > "net: usb: asix: ax88772: suspend PHY on driver probe"
> > 
> > This patch was taken in to v5.14-rc2. Can you please test it?
> > 
> Unfortunately it does not fix and was included in last week head
> 761c6d7ec820. I tested now also linux-next tag next-20210816 and the issue
> remains.

OK thx, I'll need to your help to debug it:
- please send me complete log, or at least parts related to the asix
  (dmesg | grep -i Asix)
- do the interface is not able to go up at all? For example, it works on
  hot plug, but is not working on reboot.
- Can you please test it with other link partners.

Regards,
Oleksij
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