linux-kernel - Re: [PATCH v2] xhci-pci: Only run d3cold avoidance quirk for s2idle

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Date:   Wed, 3 May 2023 08:59:13 -0500
From:   "Limonciello, Mario" <mlimonci@....com>
To:     Mathias Nyman <mathias.nyman@...ux.intel.com>,
        Mario Limonciello <mario.limonciello@....com>,
        Mathias Nyman <mathias.nyman@...el.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Natikar Basavaraj <Basavaraj.Natikar@....com>,
        Donghun Yoon <donghun.yoon@....com>, linux-usb@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] xhci-pci: Only run d3cold avoidance quirk for s2idle


On 5/3/2023 8:14 AM, Mathias Nyman wrote:
> On 25.4.2023 0.48, Mario Limonciello wrote:
>> Donghun reports that a notebook that has an AMD Ryzen 5700U but supports
>> S3 has problems with USB after resuming from suspend. The issue was
>> bisected down to commit d1658268e439 ("usb: pci-quirks: disable 
>> D3cold on
>> xhci suspend for s2idle on AMD Renoir").
>>
>> As this issue only happens on S3, narrow the broken D3cold quirk to only
>> run in s2idle.
>>
>> Fixes: d1658268e439 ("usb: pci-quirks: disable D3cold on xhci suspend 
>> for s2idle on AMD Renoir")
>> Reported-and-tested-by: Donghun Yoon <donghun.yoon@....com>
>> Signed-off-by: Mario Limonciello <mario.limonciello@....com>
>> ---
>> v1->v2:
>>   * Guard against CONFIG_SUSPEND not being set
>
> Thanks,
> Checkpatch complains that it wants a link to the issue after a 
> "Reported-by:" tag.
>
> Is there any public report of this?
>
> Thanks
> Mathias
>
>
It was reported privately to me by Donghun, and they confirmed from 
private testing
that this change helps the issue.

I noticed that message from checkpatch too before I sent this up, but I 
figured it's better
to give Donghun attribution rather than drop the tag.