linux-kernel - Re: [PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER

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Message-ID: <CAPDyKFo4t8+8gW_3y3WpQphVcJG0RGF+TkWG79NA4NCW_eTHRA@mail.gmail.com>
Date:   Mon, 6 Nov 2023 15:40:41 +0100
From:   Ulf Hansson <ulf.hansson@...aro.org>
To:     Victor Shih <victorshihgli@...il.com>
Cc:     adrian.hunter@...el.com, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org, benchuanggli@...il.com,
        HL.Liu@...esyslogic.com.tw, Greg.tu@...esyslogic.com.tw,
        SeanHY.Chen@...esyslogic.com.tw, kai.heng.feng@...onical.com,
        Victor Shih <victor.shih@...esyslogic.com.tw>
Subject: Re: [PATCH V2] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer
 timeout of AER

On Mon, 6 Nov 2023 at 09:56, Victor Shih <victorshihgli@...il.com> wrote:
>
> On Fri, Nov 3, 2023 at 6:28 PM Ulf Hansson <ulf.hansson@...aro.org> wrote:
> >
> > On Fri, 3 Nov 2023 at 11:13, Victor Shih <victorshihgli@...il.com> wrote:
> > >
> > > Hi, Ulf
> > >
> > > Please help review this patch and give me some advice.
> > > I look forward to your reply.
> > >
> > > Thanks, Victor Shih
> >
> > I don't have in-depth knowledge of how to properly solve this for pci,
> > so I am relying on Kai and others to help review.
> >
>
> Hi, Ulf
>
> This is a standalone patch, this patch only solves the warning
> messages that will
>  often appear in the system log when the system accesses the GL975x PCI config.
>
> As I discussed with Kai-Heng at the end of
> [V1] mmc: sdhci-pci-gli: GL975[05]: Mask the replay timer timeout of AER,
> Kai-Heng will be submitting a patch for the PCIe layer to solve the
> situation he encountered.
> I will also help Kai-Heng test when he submits the patch.
>
> Thanks, Victor Shih

Hi Victor,

I was just about to apply the patch for my fixes branch, when I
realized that it would be better to split it up in two patches. One
patch for GL9755 and another for GL9750.

In this way we can easier manage the back-porting to older stable kernels.

The patch for GL9755 should have the below fixes tag:
Fixes: 36ed2fd32b2c ("mmc: sdhci-pci-gli: A workaround to allow GL9755
to enter ASPM L1.2")

The patch for GL9750 should have the below fixes tag:
Fixes: d7133797e9e1 ("mmc: sdhci-pci-gli: A workaround to allow GL9750
to enter ASPM L1.2")

I think you should feel free to keep Adrian's and Kai's acks for both
of the two new patches, as the end result should end up being the
same.

[...]

Kind regards
Uffe