From: Greg KH <gregkh@linuxfoundation.org>
To: Ben Chuang <benchuanggli@gmail.com>
Cc: sashal@kernel.org, stable@vger.kernel.org,
Ben Chuang <ben.chuang@genesyslogic.com.tw>,
greg.tu@genesyslogic.com.tw, seanhy.chen@genesyslogic.com.tw,
Ulf Hansson <ulf.hansson@linaro.org>
Subject: Re: [PATCH] mmc: sdhci-pci-gli: Set SDR104's clock to 205MHz and enable SSC for GL975x
Date: Tue, 13 Oct 2020 10:58:06 +0200 [thread overview]
Message-ID: <20201013085806.GB1681211@kroah.com> (raw)
In-Reply-To: <CACT4zj8xjeRFnXekojFseHUTqouRwCwmXsCFVMWA+jhnW-DaDQ@mail.gmail.com>
On Tue, Oct 13, 2020 at 04:33:38PM +0800, Ben Chuang wrote:
> On Tue, Oct 13, 2020 at 4:00 PM Greg KH <gregkh@linuxfoundation.org> wrote:
> >
> > On Tue, Oct 13, 2020 at 03:46:00PM +0800, Ben Chuang wrote:
> > > From: Ben Chuang <ben.chuang@genesyslogic.com.tw>
> > >
> > > commit 786d33c887e15061ff95942db68fe5c6ca98e5fc upstream.
> > >
> > > Set SDR104's clock to 205MHz and enable SSC for GL9750 and GL9755
> > >
> > > Signed-off-by: Ben Chuang <ben.chuang@genesyslogic.com.tw>
> > > Link: https://lore.kernel.org/r/20200717033350.13006-1-benchuanggli@gmail.com
> > > Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
> > > Cc: <stable@vger.kernel.org> # 5.4.x
> > > ---
> > > Hi Greg and Sasha,
> > >
> > > The patch is to improve the EMI of the hardware.
> > > So it should be also required for some hardware devices using the v5.4.
> > > Please tell me if have other questions.
> >
> > This looks like a "add support for new hardware" type of patch, right?
>
> No, this is for a mass production hardware.
That does not make sense, sorry.
Is this a bug that is being fixed, did the hardware work properly before
5.4 and now it does not? Or has it never worked properly and 5.9 is the
first kernel that it now works on?
> There are still some customer cases using v5.4 LTS hence we need to
> add the patch for v5.4 LTS.
Your customer problems are not the upstream kernel's problems, this is
why they pay you :)
Have you read the stable kernel rules:
https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html
What category does this patch fall into?
thanks,
greg k-h
next prev parent reply other threads:[~2020-10-13 8:57 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-13 7:46 [PATCH] mmc: sdhci-pci-gli: Set SDR104's clock to 205MHz and enable SSC for GL975x Ben Chuang
2020-10-13 8:01 ` Greg KH
2020-10-13 8:33 ` Ben Chuang
2020-10-13 8:58 ` Greg KH [this message]
2020-10-13 11:11 ` Ben Chuang
2020-10-13 13:48 ` Greg KH
2020-10-14 8:00 ` Ben Chuang
2020-10-14 8:11 ` Greg KH
2020-10-14 10:42 ` Ben Chuang
2020-10-14 11:37 ` Greg KH
2020-10-15 1:17 ` Ben Chuang
2020-10-21 3:27 ` Ben Chuang
2020-10-21 5:21 ` Greg KH
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