netdev - Re: [BUG, regression, bisected] Marvell 88E8055 NIC (sky2) fails to detect link after resume from S3

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Message-ID: <CAKKZj2D-VVZF81=7-y+WtFGumzKJUfuaiB8k8X=BFXiXi0nfbg@mail.gmail.com>
Date:	Sat, 30 Jun 2012 00:36:38 +0200
From:	Michal Zatloukal <myxal.mxl@...il.com>
To:	Francois Romieu <romieu@...zoreil.com>
Cc:	netdev@...r.kernel.org, Mirko Lindner <mlindner@...vell.com>,
	Stephen Hemminger <shemminger@...tta.com>
Subject: Re: [BUG, regression, bisected] Marvell 88E8055 NIC (sky2) fails to
 detect link after resume from S3

Sorry, not a developer, but I assume you mean something like:
 if (!hw)
                return 0;

+        mdelay(800);
        /* Re-enable all clocks */
Right? In that case, I'm building the kernel now and should be able to
report by tomorrow.

MZ

On Fri, Jun 29, 2012 at 11:58 PM, Francois Romieu <romieu@...zoreil.com> wrote:
> (maintainers Cced)
>
> Michal Zatloukal <myxal.mxl@...il.com> :
> [7afe1845dd1e7c90828c942daed7e57ffa7c38d6 induced regression]
>> My uneducated guess is that by making the resume from S3 shorter, the
>> driver catches the hardware with its pants down and freaks out.
>> You can find all details/files (dmesg, lspci, dmidecode, config...)
>> collected by apport in the ubuntu bug linked above. Let me know if I
>> should supply any more info.
>> Note: Please CC me into replies, I'm not subscribed. Thank you.
>
> Can you workaround it by enforcing some mdelay() in sky2_resume before
> it does any real work ?
>
> --
> Ueimor
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