linux-kernel - Re: [REGRESSION] PCI v5.5-rc1 breaks google kevin

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Date:   Thu, 12 Dec 2019 21:48:43 +0100
From:   Vicente Bergas <vicencb@...il.com>
To:     Andrew Murray <andrew.murray@....com>
Cc:     Enric Balletbo Serra <eballetbo@...il.com>,
        Robin Murphy <robin.murphy@....com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Heiko Stuebner <heiko@...ech.de>,
        Frederick Lawler <fred@...dlawl.com>,
        <linux-pci@...r.kernel.org>, Shawn Lin <shawn.lin@...k-chips.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        Mark Brown <broonie@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Stefan Mätje <stefan.maetje@....eu>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        Heiner Kallweit <hkallweit1@...il.com>
Subject: Re: [REGRESSION] PCI v5.5-rc1 breaks google kevin

On Thursday, December 12, 2019 9:39:27 PM CET, Andrew Murray wrote:
> On Thu, Dec 12, 2019 at 07:40:06PM +0100, Vicente Bergas wrote:
>> On Thursday, December 12, 2019 3:16:25 PM CET, Enric Balletbo Serra wrote:
>>> Hi Vicente,
>>> 
>>> Missatge de Andrew Murray <andrew.murray@....com> del dia dj., 12 de
>>> des. 2019 a les 1:53:
>>>> On Thu, Dec 12, 2019 at 12:12:56AM +0000, Robin Murphy wrote: ...
>>> 
>>> Another issue that is affecting current mainline for kevin is fixed
>>> with [1]. As usual, I have a tracking branch for 5.5 for different
>>> Chromebooks with some not yet merged patches that makes things work
>>> while are not fixed [2]. For kevin only the mentioned ASoC patch [1]
>>> and the pcie fix [3] should be needed. Other than that display is
>>> working for me on Kevin.
>>> 
>>> Cheers,
>>>  Enric
>>> 
>>> [1] 
>>> https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git/commit/?h=for-5.5&id=4bf2e385aa59c2fae5f880aa25cfd2b470109093
>>> [2] 
>>> https://gitlab.collabora.com/eballetbo/linux/commits/topic/chromeos/somewhat-stable-5.5
>>> [3]  https://lkml.org/lkml/2019/12/11/199
>>> 
>>>>> ...
>>>> It's likely that any PCI driver that uses PCI IO with that 
>>>> controller will
>>>> suffer the same fate.
>>>> 
>>>> Vicente - can you try the patch that has been proposed and 
>>>> verify it fixes
>>>> the issue for you?
>>>> 
>>>> Thanks, ...
>> 
>> Hi Robin, Andrew and Enric,
>> thank you all for the quick responses!
>> I can confirm that patch [3] fixes the issue reported in this email and
>> that [1] fixes the other issue reported on the other email.
>
> Pleased to hear this is working for you now.
>
> Are you happy to give a tested-by tag for [3]?

Yes, feel free to apply this tag.
Using it just now and the wlan at the other side of the PCIe bus is 
detected.

Regards,
  Vicente.

> Thanks,
>
> Andrew Murray
>
>> 
>> Regards,
>>  Vicenç.
>> 
>
>