linux-kernel - Re: [PATCH] usb: dwc3: don't reset device side if dwc3 was configured as host-only

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Date:   Fri, 17 Nov 2023 10:22:08 +0100
From:   Köry Maincent <kory.maincent@...tlin.com>
To:     Thinh Nguyen <Thinh.Nguyen@...opsys.com>
Cc:     Jisheng Zhang <jszhang@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Lu jicong <jiconglu58@...il.com>,
        "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH] usb: dwc3: don't reset device side if dwc3 was
 configured as host-only

Hello Thinh,

On Fri, 17 Nov 2023 01:55:30 +0000
Thinh Nguyen <Thinh.Nguyen@...opsys.com> wrote:

> Hi,
> 
> Sorry, email client issue with your email. Attempt to resend:

Thanks for your quick reply.

> 
> On Fri, Nov 17, 2023, Thinh Nguyen wrote:
> > Hi,
> > 
> > On Thu, Nov 16, 2023, Köry Maincent wrote:  
> > > On Thu, 16 Nov 2023 17:42:06 +0100
> > > Köry Maincent <kory.maincent@...tlin.com> wrote:
> > >   
> > > > Hello,
> > > > 
> > > > Similar issue with ZynqMP board related to that patch:
> > > > 
> > > > xilinx-psgtr fd400000.phy: lane 3 (type 1, protocol 3): PLL lock timeout
> > > > phy phy-fd400000.phy.3: phy poweron failed --> -110
> > > > dwc3 fe300000.usb: error -ETIMEDOUT: failed to initialize core
> > > > 
> > > > With CONFIG_USB_DWC3_DUAL_ROLE and dr_mode = "host";
> > > > 
> > > > It may not be the correct fix.  
> > > 
> > > Just figured out there was a patch (357191036889 usb: dwc3: Soft reset
> > > phy on probe for host) from Thinh aimed to fix it but the issue is still
> > > here on ZynqMP.
> > >   
> > 
> > How many ports do you use? Can you try this:

I am using 2 ports.
I will test it out next week as I don't have access to the board until then.

Regards,
-- 
Köry Maincent, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com