On Tue, Jan 03, 2012 at 16:01:52, Govindraj wrote:

quoted

I have basic suspend-resume working on it. Strangely this works irrespective
of the value of tty_dev wakeup entry. Do you know if this is expected on OMAP?

AFAIK yes.

Ok.

quoted

The other issue concerning runtime PM is that as soon as I set a non-zero to
the autosuspend_delay_ms I get some garbage characters and eventually the
console stops responding.

[root at arago /]# cat .../omap_uart.0/power/autosuspend_delay_ms
-1
[root at arago /]# echo 3000 > ?KW???+???+wU.???,z,??.??osuspend_delay??????...
[root at arago /]# <- No response after some time

try enabling CONFIG_CPU_IDLE for pm qos_usage from uart driver.

Its enabled.

Regards,
Vaibhav