Re: PM: timeout waiting for write of PM_WKEN_WKUP.EN_IO_CHAIN

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On Thu, 2009-05-14 at 18:57 +0300, Kevin Hilman wrote:
> Kalle,
> 
> In your "Enable IO-CHAIN wakeup" patch[1], you set a timout based on
> 1000 tries of reading back from PM_WKST_WKUP.
> 
> Just curious how you came up with that value. 

I tested it around a few times, and the loop seemed to run 2 iterations
max. 1000 is just a random (big enough) number that I think should work
if everything is ok. 


> 
> On ES3.1 3430SDP, some TI folks are seeing that timeout warning
> every time hitting idle.

Then there is something wrong and the io-chain enable is not working.
Please try removing the timeout and see if it hangs completely. I don't
have a SDP to test on.

- Kalle

> 
> Kevin
> 
> [1] http://marc.info/?l=linux-omap&m=123807750921423&w=2

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