From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
To: Loic Poulain <loic.poulain@linaro.org>
Cc: Thomas Perrot <thomas.perrot@bootlin.com>,
Aleksander Morgado <aleksander@aleksander.es>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
Hemant Kumar <hemantk@codeaurora.org>,
stable <stable@vger.kernel.org>
Subject: Re: [PATCH] bus: mhi: pci_generic: increase timeout value for operations to 24000ms
Date: Fri, 1 Oct 2021 13:08:54 +0530 [thread overview]
Message-ID: <20211001073854.GD5821@thinkpad> (raw)
In-Reply-To: <CAMZdPi9AJcdVC2AS08ZtHU6sv1CMLhudgJHVpQF2zLfF+OV=Og@mail.gmail.com>
On Thu, Sep 30, 2021 at 12:19:48PM +0200, Loic Poulain wrote:
> On Thu, 30 Sept 2021 at 10:08, Thomas Perrot <thomas.perrot@bootlin.com> wrote:
> >
> > Hello,
> >
[...]
> I agree, let's set a conservative high value for generic SDX55, so
> have wider support, that can be tuned per vendor IDs if necessary
> anyway.
>
No. Since this device seems to have a dedicated config, let's increase the
timeout only for this device until we get reports for other devices.
> Regards,
> Loic
>
> >
> > Moreover, Sierra EM919x modems use a custom controller configuration,
> > we are currently working on it. As our tests not being sufficiently
> > conclusive, so we have not yet submitted.
> >
> > Best regards,
> > Thomas
> >
> > > >
> > > > It was derived from testing I believe.
> > >
> > > Following your reasoning above, shouldn't this 24000ms timeout be
> > > applied only to the Sierra Wireless EM91xx devices (which may have
> > > custom firmware bits delaying the initialization a bit longer), and
> > > not to the generic SDX24, SDX55 and SDX65?
> > >
> > > If I'm not mistaken, Thomas is testing with a custom mhi_pci_generic
> > > entry for the EM91xx; as in
> > > https://forum.sierrawireless.com/t/sierra-wireless-airprime-em919x-pcie-support/24927
> > > .
> > > I'm also playing with that same entry on my own setup, but have other
> > > problems of my own :)
> > >
> > >
> > > --
> > > Aleksander
> > > https://aleksander.es
> >
> > --
> > Thomas Perrot, Bootlin
> > Embedded Linux and kernel engineering
> > https://bootlin.com
> >
next prev parent reply other threads:[~2021-10-01 7:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-05 14:02 [PATCH] bus: mhi: pci_generic: increase timeout value for operations to 24000ms Thomas Perrot
2021-08-05 14:30 ` Loic Poulain
2021-08-16 4:22 ` Manivannan Sadhasivam
2021-09-28 20:11 ` Thomas Perrot
2021-09-29 11:58 ` Manivannan Sadhasivam
2021-09-29 9:37 ` Aleksander Morgado
2021-09-29 12:04 ` Manivannan Sadhasivam
2021-09-29 13:17 ` Aleksander Morgado
2021-09-30 8:07 ` Thomas Perrot
2021-09-30 10:19 ` Loic Poulain
2021-10-01 7:38 ` Manivannan Sadhasivam [this message]
2021-10-01 7:36 ` Manivannan Sadhasivam
2021-10-01 7:35 ` Manivannan Sadhasivam
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