Re: PM(?) problems on v3.3-rc1 on OMAP3

Paul Walmsley
2012-01-21T07:38:31Z

On Fri, 20 Jan 2012, Tomi Valkeinen wrote:

> 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> wrote:
> > > 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.
> >
> > 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.

Enabling CONFIG_CPU_IDLE doesn't fix it for me. Maybe that's because
I'm just using omap2plus_defconfig.

- Paul