3.3-rc1 console lag (was: Re: [PATCH v8 00/20] OMAP2+: UART: Runtime adaptation + cleanup)
From: paul@pwsan.com (Paul Walmsley)
Date: 2012-01-26 03:00:51
Also in:
linux-omap, linux-serial
On Wed, 25 Jan 2012, Ramirez Luna, Omar wrote:
Hi, On Fri, Nov 11, 2011 at 3:57 AM, Govindraj.R [off-list ref] wrote:quoted
Converting uart driver to adapt to pm runtime API's. Code re-org + cleanup. Moving some functionality from serial.c to omap-serial.c...quoted
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