From: Kalle Jokiniemi <kalle.jokiniemi@digia.com>
To: Kevin Hilman <khilman@deeprootsystems.com>
Cc: "linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Subject: Re: PM: timeout waiting for write of PM_WKEN_WKUP.EN_IO_CHAIN
Date: Fri, 15 May 2009 09:26:48 +0300 [thread overview]
Message-ID: <1242368808.6466.203.camel@ubuntu> (raw)
In-Reply-To: <87r5yry8wr.fsf@deeprootsystems.com>
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
prev parent reply other threads:[~2009-05-15 6:26 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-14 15:57 PM: timeout waiting for write of PM_WKEN_WKUP.EN_IO_CHAIN Kevin Hilman
2009-05-15 6:26 ` Kalle Jokiniemi [this message]
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