Omap3430 does not resume after suspend

Omap3430 does not resume after suspend

[Shreyas Mahajan]

Hello,
         I am a newbie with omap3430. As a part of my project, I
suspended my board with 'echo mem > /sys/power/state'.The suspend
happens correctly, without giving any failure message. But, when I
tried it to resume, it is not resuming.I tried to find some reasons
for this, and got the patches for unmasking keyboard interrupt while
suspending. But, all patches are for omap2 and omap1 board
architecture. Are there any patches to do this thing in omap3430?

Thanks,

RE: Omap3430 does not resume after suspend

[Premi, Sanjeev]

> -----Original Message-----
> From: linux-omap-owner@vger.kernel.org 
> [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Shreyas Mahajan
> Sent: Friday, January 30, 2009 2:54 PM
> To: linux-omap@vger.kernel.org
> Subject: Omap3430 does not resume after suspend
> 
> Hello,
>          I am a newbie with omap3430. As a part of my 
> project, I suspended my board with 'echo mem > 
> /sys/power/state'.The suspend happens correctly, without 
> giving any failure message. But, when I tried it to resume, 
> it is not resuming.I tried to find some reasons for this, and 
> got the patches for unmasking keyboard interrupt while 
> suspending. But, all patches are for omap2 and omap1 board 
> architecture.
[sp] Are you following updates in Kevin Hilman's pm branch?
With lastest updates you shouldn't see this problem on a minimal config.

Would be good to start from here and add drivers selectively.

> Are there any patches to do this thing in omap3430?

[sp] omap2 applies to OMAP3430 as well.

> 
> Thanks,
> --
> To unsubscribe from this list: send the line "unsubscribe 
> linux-omap" in the body of a message to 
> majordomo@vger.kernel.org More majordomo info at  
> http://vger.kernel.org/majordomo-info.html
> 
> 

Re: Omap3430 does not resume after suspend

[Shreyas Mahajan]

On Fri, Jan 30, 2009 at 7:32 PM, Premi, Sanjeev <premi@ti.com> wrote:
>
> > -----Original Message-----
> > From: linux-omap-owner@vger.kernel.org
> > [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Shreyas Mahajan
> > Sent: Friday, January 30, 2009 2:54 PM
> > To: linux-omap@vger.kernel.org
> > Subject: Omap3430 does not resume after suspend
> >
> > Hello,
> >          I am a newbie with omap3430. As a part of my
> > project, I suspended my board with 'echo mem >
> > /sys/power/state'.The suspend happens correctly, without
> > giving any failure message. But, when I tried it to resume,
> > it is not resuming.I tried to find some reasons for this, and
> > got the patches for unmasking keyboard interrupt while
> > suspending. But, all patches are for omap2 and omap1 board
> > architecture.
> [sp] Are you following updates in Kevin Hilman's pm branch?
> With lastest updates you shouldn't see this problem on a minimal config.
>
> Would be good to start from here and add drivers selectively.
>
> > Are there any patches to do this thing in omap3430?
>
> [sp] omap2 applies to OMAP3430 as well.
>
> >
> > Thanks,
> > --
> > To unsubscribe from this list: send the line "unsubscribe
> > linux-omap" in the body of a message to
> > majordomo@vger.kernel.org More majordomo info at
> > http://vger.kernel.org/majordomo-info.html
> >
> >

Thanks for reply.
I went through the Kevin Hilman's PM branch and found the same problem
posted by you (@Sanjeev),

'Hangs on a echo mem > /sys/power/state
> Goes into suspend, but cannot recover'

So, can you please tell me if this problem is solved?

RE: Omap3430 does not resume after suspend

[Premi, Sanjeev]

> -----Original Message-----
> From: Shreyas Mahajan [mailto:mahajan.shreyas@gmail.com] 
> Sent: Tuesday, February 03, 2009 11:44 AM
> To: Premi, Sanjeev; linux-omap@vger.kernel.org
> Subject: Re: Omap3430 does not resume after suspend
> 
> On Fri, Jan 30, 2009 at 7:32 PM, Premi, Sanjeev <premi@ti.com> wrote:
> >
> > > -----Original Message-----
> > > From: linux-omap-owner@vger.kernel.org 
> > > [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Shreyas 
> > > Mahajan
> > > Sent: Friday, January 30, 2009 2:54 PM
> > > To: linux-omap@vger.kernel.org
> > > Subject: Omap3430 does not resume after suspend
> > >
> > > Hello,
> > >          I am a newbie with omap3430. As a part of my project, I 
> > > suspended my board with 'echo mem > /sys/power/state'.The suspend 
> > > happens correctly, without giving any failure message. 
> But, when I 
> > > tried it to resume, it is not resuming.I tried to find 
> some reasons 
> > > for this, and got the patches for unmasking keyboard 
> interrupt while 
> > > suspending. But, all patches are for omap2 and omap1 board 
> > > architecture.
> > [sp] Are you following updates in Kevin Hilman's pm branch?
> > With lastest updates you shouldn't see this problem on a 
> minimal config.
> >
> > Would be good to start from here and add drivers selectively.
> >
> > > Are there any patches to do this thing in omap3430?
> >
> > [sp] omap2 applies to OMAP3430 as well.
> >
> > >
> > > Thanks,
> > > --
> > > To unsubscribe from this list: send the line "unsubscribe 
> > > linux-omap" in the body of a message to majordomo@vger.kernel.org 
> > > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > >
> > >
> 
> Thanks for reply.
> I went through the Kevin Hilman's PM branch and found the 
> same problem posted by you (@Sanjeev),
> 
> 'Hangs on a echo mem > /sys/power/state
> > Goes into suspend, but cannot recover'
> 
> So, can you please tell me if this problem is solved?
> 

[sp] Have not been able to follow-up in the latest tree for last couple of days, but with minimal driver configuration; this problem is solved. I am in process of finding the 'offending' driver.

Re: Omap3430 does not resume after suspend

[Shreyas Mahajan]

 Hi,
    Thanks for constantly tolerating my ignorance. I git-cloned the
latest PM tree available and booted my 3430 LDP board with ldp
defconfig configuration. Now the problem regarding hanging of machine
after some small interval is solved but when I done 'echo mem
>/sys/power/state' it gives error to suspend,
This is log for it,

'/ # echo mem > /sys/power/state
<6>PM: Syncing filesystems ... PM: Syncing filesystems ... done.
done.
Freezing user space processes ... Freezing user space processes ...
(elapsed 0.00 seconds) (elapsed 0.00 seconds) done.
done.
Freezing remaining freezable tasks ... Freezing remaining freezable
tasks ... (elapsed 0�\x02)����r$�Powerdomain (core_pwrdm) d1
Powerdomain (per_pwrdm) didn't enter target state 1
             �*43
Could not enter target state in pm_suspendend to debug)
�\x021�ռ���,\x02森�Ѡr��
Restarting tasks ... Restarting tasks ... done.%�������� J$�4%�%\x06Ѵ�*43
done.F�󰯅)������������ J$�4%�%\x06Ѵ�*43
'
I searched similar problems on mailing list, in which suspend log
contains exactly which process could not be stopped as reason to
suspend failure. But in above log, I could not interpret such a
reason.
         Could anyone please help me with this?

On Tue, Feb 3, 2009 at 3:02 PM, Premi, Sanjeev <premi@ti.com> wrote:
>> -----Original Message-----
>> From: Shreyas Mahajan [mailto:mahajan.shreyas@gmail.com]
>> Sent: Tuesday, February 03, 2009 11:44 AM
>> To: Premi, Sanjeev; linux-omap@vger.kernel.org
>> Subject: Re: Omap3430 does not resume after suspend
>>
>> On Fri, Jan 30, 2009 at 7:32 PM, Premi, Sanjeev <premi@ti.com> wrote:
>> >
>> > > -----Original Message-----
>> > > From: linux-omap-owner@vger.kernel.org
>> > > [mailto:linux-omap-owner@vger.kernel.org] On Behalf Of Shreyas
>> > > Mahajan
>> > > Sent: Friday, January 30, 2009 2:54 PM
>> > > To: linux-omap@vger.kernel.org
>> > > Subject: Omap3430 does not resume after suspend
>> > >
>> > > Hello,
>> > >          I am a newbie with omap3430. As a part of my project, I
>> > > suspended my board with 'echo mem > /sys/power/state'.The suspend
>> > > happens correctly, without giving any failure message.
>> But, when I
>> > > tried it to resume, it is not resuming.I tried to find
>> some reasons
>> > > for this, and got the patches for unmasking keyboard
>> interrupt while
>> > > suspending. But, all patches are for omap2 and omap1 board
>> > > architecture.
>> > [sp] Are you following updates in Kevin Hilman's pm branch?
>> > With lastest updates you shouldn't see this problem on a
>> minimal config.
>> >
>> > Would be good to start from here and add drivers selectively.
>> >
>> > > Are there any patches to do this thing in omap3430?
>> >
>> > [sp] omap2 applies to OMAP3430 as well.
>> >
>> > >
>> > > Thanks,
>> > > --
>> > > To unsubscribe from this list: send the line "unsubscribe
>> > > linux-omap" in the body of a message to majordomo@vger.kernel.org
>> > > More majordomo info at http://vger.kernel.org/majordomo-info.html
>> > >
>> > >
>>
>> Thanks for reply.
>> I went through the Kevin Hilman's PM branch and found the
>> same problem posted by you (@Sanjeev),
>>
>> 'Hangs on a echo mem > /sys/power/state
>> > Goes into suspend, but cannot recover'
>>
>> So, can you please tell me if this problem is solved?
>>
>
> [sp] Have not been able to follow-up in the latest tree for last couple of days, but with minimal driver configuration; this problem is solved. I am in process of finding the 'offending' driver.
--
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Re: Omap3430 does not resume after suspend

[Ramesh Gupta Guntha]

Hi Shreyas,

On 2/4/09, Shreyas Mahajan <mahajan.shreyas@gmail.com> wrote:
>  Hi,
>    Thanks for constantly tolerating my ignorance. I git-cloned the
> latest PM tree available and booted my 3430 LDP board with ldp
> defconfig configuration. Now the problem regarding hanging of machine
> after some small interval is solved but when I done 'echo mem
> >/sys/power/state' it gives error to suspend,
> This is log for it,
>
> '/ # echo mem > /sys/power/state
> <6>PM: Syncing filesystems ... PM: Syncing filesystems ... done.
> done.
> Freezing user space processes ... Freezing user space processes ...
> (elapsed 0.00 seconds) (elapsed 0.00 seconds) done.
> done.
> Freezing remaining freezable tasks ... Freezing remaining freezable
> tasks ... (elapsed 0� )����r$�Powerdomain (core_pwrdm) d1
> Powerdomain (per_pwrdm) didn't enter target state 1
>             �*43
> Could not enter target state in pm_suspendend to debug)
> � 1�ռ���, 森�Ѡr��
> Restarting tasks ... Restarting tasks ... done.%�������� J$�4%�% Ѵ�*43
> done.F�󰯅)������������ J$�4%�% Ѵ�*43
> '
> I searched similar problems on mailing list, in which suspend log
> contains exactly which process could not be stopped as reason to
> suspend failure. But in above log, I could not interpret such a
> reason.
>         Could anyone please help me with this?

Please look into below mail thread on the PM off mode support in l-o list.

http://www.mail-archive.com/linux-omap@vger.kernel.org/msg08968.html

If you are trying it on SDP , use u-boot mentioned in the above link.


use below settings before running echo mem > /sys/power/state for off mode.

echo 1 > /sys/power/clocks_off_while_idle
echo 1 > /sys/power/voltage_off_while_idle
echo 1 > /sys/power/enable_off_mode


I tried it on my SDP with omap_3430sdp_min_defconfig, I am seeing all
the domains entering to OFF mode.

thanks
Ramesh Gupta G
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Re: Omap3430 does not resume after suspend

[Kevin Hilman]

Ramesh Gupta Guntha <grgupta77@gmail.com> writes:

> Hi Shreyas,
>
> On 2/4/09, Shreyas Mahajan <mahajan.shreyas@gmail.com> wrote:
>>  Hi,
>>    Thanks for constantly tolerating my ignorance. I git-cloned the
>> latest PM tree available and booted my 3430 LDP board with ldp
>> defconfig configuration. Now the problem regarding hanging of machine
>> after some small interval is solved but when I done 'echo mem
>> >/sys/power/state' it gives error to suspend,
>> This is log for it,
>>
>> '/ # echo mem > /sys/power/state
>> <6>PM: Syncing filesystems ... PM: Syncing filesystems ... done.
>> done.
>> Freezing user space processes ... Freezing user space processes ...
>> (elapsed 0.00 seconds) (elapsed 0.00 seconds) done.
>> done.
>> Freezing remaining freezable tasks ... Freezing remaining freezable
>> tasks ... (elapsed 0� )����r$�Powerdomain (core_pwrdm) d1
>> Powerdomain (per_pwrdm) didn't enter target state 1
>>             �*43
>> Could not enter target state in pm_suspendend to debug)
>> � 1�ռ���, 森�Ѡr��
>> Restarting tasks ... Restarting tasks ... done.%�������� J$�4%�% Ѵ�*43
>> done.F�󰯅)������������ J$�4%�% Ѵ�*43
>> '
>> I searched similar problems on mailing list, in which suspend log
>> contains exactly which process could not be stopped as reason to
>> suspend failure. But in above log, I could not interpret such a
>> reason.
>>         Could anyone please help me with this?
>
> Please look into below mail thread on the PM off mode support in l-o list.
>
> http://www.mail-archive.com/linux-omap@vger.kernel.org/msg08968.html
>
> If you are trying it on SDP , use u-boot mentioned in the above link.
>
>
> use below settings before running echo mem > /sys/power/state for off mode.
>
> echo 1 > /sys/power/clocks_off_while_idle
> echo 1 > /sys/power/voltage_off_while_idle
> echo 1 > /sys/power/enable_off_mode
>
>
> I tried it on my SDP with omap_3430sdp_min_defconfig, I am seeing all
> the domains entering to OFF mode.
>

In addition to above, I suggest you turn of CONFIG_DEBUG_LL as well as
that will clutter up your serial console with garbage during
suspend/resume.

Kevin
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Fwd: Omap3430 does not resume after suspend

[Shreyas Mahajan]

---------- Forwarded message ----------
From: Shreyas Mahajan <mahajan.shreyas@gmail.com>
Date: Wed, Feb 4, 2009 at 12:59 PM
Subject: Re: Omap3430 does not resume after suspend
To: Kevin Hilman <khilman@deeprootsystems.com>


But the problem is I am using 3430 ldp board, and sdp board is not
available to me.
I used omap_ldp_defconfig and got error while attempting 'echo mem>
/sys/power/state'
       How can I do it on LDP board? Does this work for LDP board?
Thanks,
Shreyas.


On Wed, Feb 4, 2009 at 12:31 PM, Kevin Hilman
<khilman@deeprootsystems.com> wrote:
> Ramesh Gupta Guntha <grgupta77@gmail.com> writes:
>
>> Hi Shreyas,
>>
>> On 2/4/09, Shreyas Mahajan <mahajan.shreyas@gmail.com> wrote:
>>>  Hi,
>>>    Thanks for constantly tolerating my ignorance. I git-cloned the
>>> latest PM tree available and booted my 3430 LDP board with ldp
>>> defconfig configuration. Now the problem regarding hanging of machine
>>> after some small interval is solved but when I done 'echo mem
>>> >/sys/power/state' it gives error to suspend,
>>> This is log for it,
>>>
>>> '/ # echo mem > /sys/power/state
>>> <6>PM: Syncing filesystems ... PM: Syncing filesystems ... done.
>>> done.
>>> Freezing user space processes ... Freezing user space processes ...
>>> (elapsed 0.00 seconds) (elapsed 0.00 seconds) done.
>>> done.
>>> Freezing remaining freezable tasks ... Freezing remaining freezable
>>> tasks ... (elapsed 0� )����r$�Powerdomain (core_pwrdm) d1
>>> Powerdomain (per_pwrdm) didn't enter target state 1
>>>             �*43
>>> Could not enter target state in pm_suspendend to debug)
>>> � 1�ռ���, 森�Ѡr��
>>> Restarting tasks ... Restarting tasks ... done.%�������� J$�4%�% Ѵ�*43
>>> done.F�󰯅)������������ J$�4%�% Ѵ�*43
>>> '
>>> I searched similar problems on mailing list, in which suspend log
>>> contains exactly which process could not be stopped as reason to
>>> suspend failure. But in above log, I could not interpret such a
>>> reason.
>>>         Could anyone please help me with this?
>>
>> Please look into below mail thread on the PM off mode support in l-o list.
>>
>> http://www.mail-archive.com/linux-omap@vger.kernel.org/msg08968.html
>>
>> If you are trying it on SDP , use u-boot mentioned in the above link.
>>
>>
>> use below settings before running echo mem > /sys/power/state for off mode.
>>
>> echo 1 > /sys/power/clocks_off_while_idle
>> echo 1 > /sys/power/voltage_off_while_idle
>> echo 1 > /sys/power/enable_off_mode
>>
>>
>> I tried it on my SDP with omap_3430sdp_min_defconfig, I am seeing all
>> the domains entering to OFF mode.
>>
>
> In addition to above, I suggest you turn of CONFIG_DEBUG_LL as well as
> that will clutter up your serial console with garbage during
> suspend/resume.
>
> Kevin
>
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