PPS input on GPIO pin RPI2.

[Peter Ankerstål]

>> 
>> 
>> I asked a question on the stable@ list a few weeks ago about having
>> PPS 
>> input on a generic GPIO-pin on the RPI2. I received some positive 
>> feedback that this should be easy to implement but have heard nothing
>> since. Today I found out about the arm-list and thought this maybe
>> was a 
>> better place for this question.
>> 
>> 
> 
> Sorry for the slow response on this, just wanted to let you know that
> work on this is finally underway.  The big interrupt infrastructure
> changes I was waiting for were committed a few days ago.  I started
> writing the pps driver and ran into some more "we have no way to do
> this" problems which we're building even more new infrastructure for
> now. :)
> 
> I have no firm ETA, but I did get enough of a proof-of-concept hacked
> together yesterday that I was able to get pps input working on a gpio
> pin on a wandboard (and that work will generalize to any of the arm
> boards that use FDT data pretty quickly), so it shouldn't be much
> longer.
> 
Thank you much! Sounds great. Please tell me if you need something tested.

/Peter.

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