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

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Date:   Thu, 16 Nov 2023 17:59:59 +0100
From:   Köry Maincent <kory.maincent@...tlin.com>
To:     Jisheng Zhang <jszhang@...nel.org>,
        Thinh Nguyen <Thinh.Nguyen@...opsys.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Lu jicong <jiconglu58@...il.com>
Cc:     linux-usb@...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

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.

Regards,

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