[alsa-devel] ASoC related suspend problems on OMAP3

Grazvydas Ignotas notasas at gmail.com
Wed Feb 8 01:34:38 CET 2012


Hi,

On OMAP3 pandora, system suspend stops working properly after using
audio at least once:

(just after boot):
# echo mem > /sys/power/state
[   12.578186] PM: Entering mem sleep
[   12.678802] PM: suspend of devices complete after 92.834 msecs
[   12.688201] PM: late suspend of devices complete after 3.173 msecs
[   17.607971] Successfully put all powerdomains to target state

# aplay /dev/zero
^C
# echo mem > /sys/power/state
[  104.404663] PM: suspend of devices complete after 78.794 msecs
[  104.413909] PM: late suspend of devices complete after 3.021 msecs
[  106.601196] Powerdomain (per_pwrdm) didn't enter target state 1
[  106.607421] Powerdomain (core_pwrdm) didn't enter target state 1
[  106.613739] Could not enter target state in pm_suspend

I'm seeing this on 3.2, unable to verify on current Linus HEAD as
something else is preventing core/per low power states there.
Any ideas what could be causing this? Perhaps some clock is left enabled?

-- 
Gražvydas


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