3.3-rc1 console lag (was: Re: [PATCH v8 00/20] OMAP2+: UART: Runtime adaptation + cleanup)

[Paul Walmsley]

On Wed, 25 Jan 2012, Ramirez Luna, Omar wrote:

> Hi,
> 
> On Fri, Nov 11, 2011 at 3:57 AM, Govindraj.R <govindraj.raja at ti.com> wrote:
> > Converting uart driver to adapt to pm runtime API's.
> > Code re-org + cleanup.
> > Moving some functionality from serial.c to omap-serial.c
> ...
> >
> > Ensure CONFIG_OMAP_PRM is set while testing irq_chaining with uart.
> > And for pm_qos usage ensure CONFIG_CPU_IDLE is selected other wise
> > console might be sluggish.
> 
> There is console lag for omap2plus_defconfig given that
> CONFIG_CPU_IDLE is not enabled. Is the intention to force CPU_IDLE
> into the defconfig or find an alternative for the new pm_qos when cpu
> idle is disabled.
> 
> Seen on beagle-xm and 3.3-rc1.

Try this

http://marc.info/?l=linux-arm-kernel&m=132754676814391&w=2


- Paul