From: Kevin Hilman <khilman@ti.com>
To: Luke Gong <lukejgong@gmail.com>
Cc: linux-omap@vger.kernel.org
Subject: Re: Fail to suspend to ram: "Class driver suspend failed for cpu0"
Date: Thu, 20 Jan 2011 14:54:51 -0800 [thread overview]
Message-ID: <8762tjjidg.fsf@ti.com> (raw)
In-Reply-To: <AANLkTin-q5o1x=0Eu1HvwDZxuCAOsGiVySWHBuAW0v+C@mail.gmail.com> (Luke Gong's message of "Thu, 20 Jan 2011 16:16:58 -0500")
Luke Gong <lukejgong@gmail.com> writes:
> I have a beagle board with OMAP3530. I ported linux-omap-pm2.6.32 to
> this board. When I want to let it suspend to ram,
This is an old kernel. Any reason you're not using a newer kernel?
> it fails and I get
> the message "Class driver suspend failed for cpu0"
This is the CPUfreq driver failing to suspend, probably because there is
no CPUfreq driver implemented in your kernel. Try disabling CPU_FREQ in
your kernel config.
Kevin
> . Here is the log:
>
> root@beagleboard:~# echo mem > /sys/power/state
> PM: Syncing filesystems ... done.
> Freezing user space processes ... (elapsed 0.00 seconds) done.
> Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
> Suspending console(s) (use no_console_suspend to debug)
> omapfb omapfb: timeout waiting for FRAME DONE
> Class driver suspend failed for cpu0
> Restarting tasks ... done.
>
> *********************************************
>
> Is there any idea to fix this problem? Thanks.
next prev parent reply other threads:[~2011-01-20 22:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-20 21:16 Fail to suspend to ram: "Class driver suspend failed for cpu0" Luke Gong
2011-01-20 22:54 ` Kevin Hilman [this message]
2011-01-20 23:32 ` Luke Gong
2011-01-21 4:23 ` Vishwanath Sripathy
2011-01-21 15:28 ` Luke Gong
2011-01-21 5:09 ` Kevin Hilman
2011-01-21 15:30 ` Luke Gong
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