[Gta04-owner] 3.3 kernel for gta04.

[Lukas Märdian]

On 28.04.2012 00:26, NeilBrown wrote:
> On Fri, 27 Apr 2012 23:45:02 +0200 Lukas Märdian
> <lukasmaerdian at googlemail.com> wrote:
> 
>> On 09.04.2012 11:39, NeilBrown wrote:
>>>
>>> Hi,
>>>  I finally got 3.3 working happily on my GTA04.  Partly there were new issues
>>> to fix, partly I wanted to explore more deeply some of the issues that I have
>>> previously hacked-around rather than fixed properly (there are still some more
>>> of those though).
>>>
>>> 3.3 seems to work much the same as 3.2.  I would appreciate it if others could
>>> test and confirm that it works for them.  Then we can encourage everyone to
>>> upgrade while I look at 3.4 :-)
>>>
>>> Code can be found at
>>>     git://neil.brown.name/gta04 3.3-gta04
>>> and
>>>     git://github.com/neilbrown/linux.git gta04/3.3.y
>>>
>>> Yes, I have changed the name of the github repository - I won't change it
>>> again though.
>>>
>>> The 3.2 kernel (slightly updated) can be found at the same places with
>>> "3.3" replaced with "3.2".  Both have been updated to the latest -stable
>>> kernel (3.2.14 and 3.3.1).
>>>
>>> The only (intended) functionality changes are:
>>>
>>>    twl4030_usb: export status of id pin via sysfs
>>> from Andreas Kemnade
>>>
>>> and GTA04 - make 3G wakeup a shared interrupt 
>>> by me.
>>>
>>> This allows sysfs to get interrupts from the 3G wakeup line so they can be
>>> detected from user-space.  This means the following python script will print a
>>> message each time the 3G module sends an interrupt.
>>> I find that if I get an SMS while suspended I don't see the "+CMTI" notifier,
>>> so I hook into this interrupt instead.
>>>
>>> I've updated
>>> http://projects.goldelico.com/p/gta04-kernel/page/Mainline-Status/
>>>
>>> Any feedback always welcome,
>>>
>>> NeilBrown
>>>
>>
>> Hi Neil,
>>
>> I played with your python script latey. But I don't get it working. When
>> I try to set ../edge to rising (as described here [0]):
>> echo rising > /sys/class/gpio/gpio176/edge
>>
>> I always get (even right after a reboot):
>> -sh: echo: write error: Device or resource busy
> 
> That is exactly the error you get if the patch is not applied.
> 
> I suggest you double check that you really are running the new kernel that
> you compiled.
> 
> The 'EBUSY' is coming from the call to request_any_context_irq in
> drivers/gpio/gpiolib.c
> It has IRQF_SHARED in irq_flags so you will only get this error if the
> request_irq in board-omap3.gta04.c is not marked IRQF_SHARED...

Well, you're right. I didn't have the latest kernel installed.

Now I get "just read 0" after a resume by an incoming SMS and nothing
after a resume by a button click. I guess that's how it's expected.

Thank you very much,
  Lukas

> 
> NeilBrown
> 
> 
>>
>> Once I start the python script it says:
>> just read 0
>>
>> But after a SMS came in and the phone is woken up the script does nothing.
>>
>> Do you have any idea why this doesn't work? This is with your latest 3.2
>> kernel, which has the "GTA04 - make 3G wakeup a shared interrupt." patch.
>>
>> Cheers,
>>   Lukas
>>
>> [0] http://projects.goldelico.com/p/gta04-kernel/page/Mainline-Status/
>>
>>
> 


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