linux-kernel - Re: [PATCH v3, 3/3] usb: dwc3: core: Workaround for CSR read timeout

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Message-ID: <2024061226-luminous-veneering-904d@gregkh>
Date: Wed, 12 Jun 2024 15:52:32 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: joswang <joswang1221@...il.com>
Cc: Thinh.Nguyen@...opsys.com, linux-usb@...r.kernel.org,
	linux-kernel@...r.kernel.org, Jos Wang <joswang@...ovo.com>
Subject: Re: [PATCH v3, 3/3] usb: dwc3: core: Workaround for CSR read timeout

On Wed, Jun 12, 2024 at 09:39:47PM +0800, joswang wrote:
> On Wed, Jun 12, 2024 at 8:56 PM Greg KH <gregkh@...uxfoundation.org> wrote:
> >
> > On Wed, Jun 12, 2024 at 08:47:31PM +0800, joswang wrote:
> > > On Wed, Jun 12, 2024 at 3:58 PM Greg KH <gregkh@...uxfoundation.org> wrote:
> > > >
> > > > On Tue, Jun 11, 2024 at 10:29:53PM +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.
> > > > >
> > > > > Signed-off-by: Jos Wang <joswang@...ovo.com>
> > > > > ---
> > > > > v1 -> v2:
> > > > > - add "dt-bindings: usb: dwc3: Add snps,p2p3tranok quirk" patch
> > > > > v2 -> v3:
> > > > > - code refactor
> > > > > - modify comment, add STAR number, workaround applied in host mode
> > > > > - modify commit message, add STAR number, workaround applied in host mode
> > > > > - modify Author Jos Wang
> > > > > ---
> > > > >  drivers/usb/dwc3/core.c | 20 +++++++++++++++++++-
> > > > >  1 file changed, 19 insertions(+), 1 deletion(-)
> > > >
> > > > Where are patches 1/3 and 2/3 of this series?
> > > >
> > > > thanks,
> > > >
> > > > greg k-h
> > >
> > > Patches 1/3 and 2/3 are other cases. The maintainer is reviewing them
> > > and has no accurate conclusion yet, so only patches 3/3 are submitted.
> >
> > How are we supposed to know this?  A patch series should be taken all at
> > once, right?
> >
> > confused,
> >
> > greg k-h
> 
> I am very sorry, I misunderstood the patch series before. How should I
> deal with this patch now? Should Patches 1/3 and 2/3 also be
> submitted?

Yes please.