linux-kernel - Re: [PATCH v7] usb: dwc3: core: Workaround for CSR read timeout

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Message-ID: <2024062151-professor-squeak-a4a7@gregkh>
Date: Fri, 21 Jun 2024 07:19:26 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: joswang <joswang1221@...il.com>
Cc: Thinh Nguyen <Thinh.Nguyen@...opsys.com>, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Jos Wang <joswang@...ovo.com>
Subject: Re: [PATCH v7] usb: dwc3: core: Workaround for CSR read timeout

On Fri, Jun 21, 2024 at 09:40:10AM +0800, joswang wrote:
> On Fri, Jun 21, 2024 at 1:16 AM Greg KH <gregkh@...uxfoundation.org> wrote:
> >
> > On Wed, Jun 19, 2024 at 07:45:29PM +0800, joswang wrote:
> > > From: Jos Wang <joswang@...ovo.com>
> > >
> > > This is a workaround for STAR 4846132, which only affects
> > > DWC_usb31 version2.00a operating in host mode.
> > >
> > > There is a problem in DWC_usb31 version 2.00a operating
> > > in host mode that would cause a CSR read timeout When CSR
> > > read coincides with RAM Clock Gating Entry. By disable
> > > Clock Gating, sacrificing power consumption for normal
> > > operation.
> > >
> > > Cc: stable@...r.kernel.org
> > > Signed-off-by: Jos Wang <joswang@...ovo.com>
> >
> > What commit id does this fix?  How far back should it be backported in
> > the stable releases?
> >
> > thanks,
> >
> > greg k-h
> 
> Hello Greg Thinh
> 
> It seems first begin from the commit 1e43c86d84fb ("usb: dwc3: core:
> Add DWC31 version 2.00a controller")
> in 6.8.0-rc6 branch ?

That commit showed up in 6.9, not 6.8.  And if so, please resend with a
proper "Fixes:" tag.

thanks,

greg k-h