From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Subject: Re: PM(?) problems on v3.3-rc1 on OMAP3
Date: Fri, 20 Jan 2012 13:07:24 +0200
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To: Govindraj <govindraj.ti@gmail.com>
Cc: Kevin Hilman <khilman@ti.com>, Paul Walmsley <paul@pwsan.com>, t-kristo@ti.com, linux-omap mailing list <linux-omap@vger.kernel.org>, NeilBrown <neilb@suse.de>, Joe Woodward <jw@terrafix.co.uk>


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On Fri, 2012-01-20 at 16:19 +0530, Govindraj wrote:
> On Fri, Jan 20, 2012 at 4:03 PM, Tomi Valkeinen <tomi.valkeinen@ti.com> w=
rote:
> > Hi,
> >
> > I'm testing v3.3-rc1 on OMAP3 overo, and I'm having problems probably
> > related to PM.
> >
> > First, when I boot up, the console (via USB serial) is very laggy, it
> > often takes many seconds until the key pressed appears so it's more or
> > less unusable.
>=20
> can you try enabling CONFIG_CPU_IDLE ?

Enabling CPU_IDLE does remove the problems. I don't know what it's
supposed to do, but it seems to keep the MPU and DSS in ON state all the
time, so the problem disappears.

 Tomi


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