linux-kernel - Re: REGRESSION: Renesas USB host broken after commit d143825baf15

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Message-ID: <YPdcUrR5J6vA2Glr@epycbox.lan>
Date:   Tue, 20 Jul 2021 16:29:22 -0700
From:   Moritz Fischer <moritz.fischer.private@...il.com>
To:     Takashi Iwai <tiwai@...e.de>
Cc:     Moritz Fischer <mdf@...nel.org>, Vinod Koul <vkoul@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: REGRESSION: Renesas USB host broken after commit d143825baf15

Hi Takashi,

On Wed, Jul 21, 2021 at 01:06:29AM +0200, Takashi Iwai wrote:
> Hi,
> 
> the recent patch landed in 5.13.2 stable tree from the upstream commit
> d143825baf15 ("usb: renesas-xhci: Fix handling of unknown ROM state")
> seems causing a regression on a few machines, as reported on openSUSE
> Bugzilla:
>   https://bugzilla.opensuse.org/show_bug.cgi?id=1188485
>   https://bugzilla.opensuse.org/show_bug.cgi?id=1188515
> 
> Reverting it on top of 5.13.3 fixed the problem, so it's likely the
> cause.  Could you guys take a look?

I've sent out a revert patch.

https://lore.kernel.org/linux-usb/20210719070519.41114-1-mdf@kernel.org/T/#u

I think the driver has more problems but I'll tackle that in a follow up
patch, lets get this unbricked, first.

Sorry for the inconvenience,

Moritz