Hi,
Find some some results after applying some level of testing to
linux-omap-pm tree. Please let me know any question you may have.
-> Board
OMAP ES3.1, TRITON2 ES3.1
-> Kernel Tree
git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm.git
Commit
417a059f1bac2781ce10ad614d31b5a17513d469
OMAP3: PM: remove save/restore of exception handler state
-> Default K Configuration
omap_3430sdp_pm_defconfig
The following configurations have been tested so far
Default K Configuration + [*] No PM layer
Default K Configuration + [*] No-op/debug PM layer
Default K Configuration + [*] PM layer implemented using SRF
Default K Configuration + [ ] Power Management support + [*] No PM layer
Default K Configuration + [ ] Power Management support + [*]
No-op/debug PM layer
-> U-Boot Tree
git://git.omapzoom.org/repo/u-boot.git
Commit
80441279e3aecd8b8ca020faf65990d52978843b
Uboot Use tag of head in the local version.
-> Toolchain
Sourcery G++ Lite 2008q3-72
-> Filesystem
8 MB, Ramdisk
-> Messages at boot up time, taking Default K Configuration
.....
Reprogramming SDRC
dpll3_m2_clk rate change failed: -22
.....
clock: dpll5_ck failed transition to 'locked'
.....
SR1: VDD autocomp is not active
.....
-> The following issues apply for the following configurations
- Taking Default K Configuration + [*] No PM layer
- Taking Default K Configuration + [*] No-op/debug PM layer
- Taking Default K Configuration + [*] PM layer implemented using SRF
* All the issues were confirmed after booting the board with no
previous activity
* Using both wake up modes, manual and GPT
{1}
Error messages when enabling /sys/power/sleep_while_idle
# echo 1 > /sys/power/sleep_while_idle
omapfb omapfb: irq error status 00e2
omapfb omapfb: irq error status 00c2
omapfb omapfb: irq error status 0060
__ratelimit: 1750 callbacks suppressed
Spurious irq 95: 0xffffffdf, please flush posted write for irq 25
{2}
omapfb message when resuming
# echo 1 > /sys/power/sleep_while_idle
# echo mem > /sys/power/state
PM: Syncing filesystems ... done.
......
omapfb omapfb: timeout waiting for FRAME DONE
{3}
SYS_OFF_MODE Led won't light up red the first time
# echo 1 > /sys/power/sleep_while_idle
# echo 1 > /sys/power/enable_off_mode
# echo 1 > /sys/power/voltage_off_while_idle
# echo 1 > /sys/devices/platform/serial8250.0/sleep_timeout
# echo mem > /sys/power/state
SYS_OFF_MODE Led | Green Light
VCORE_EN Led | Green Light
# echo mem > /sys/power/state
SYS_OFF_MODE Led | Red Light
VCORE_EN Led | Green Light
* VCORE_EN Led will not go out if /sys/power/enable_off_mode is enabled
* SYS_OFF_MODE can light up red the first time following the above
steps but if no activity is present in console for more than 30
seconds before suspending, as
# echo 1 > /sys/power/sleep_while_idle
# echo 1 > /sys/power/enable_off_mode
# echo 1 > /sys/power/voltage_off_while_idle
# echo 1 > /sys/devices/platform/serial8250.0/sleep_timeout
<wait for more than 30 seconds>
# echo mem > /sys/power/state
{4}
System is rebooting when suspending several times, the steps to reproduce are
as follows but not 100% reproducible, "x seconds" can vary
# echo 1 > /sys/power/sleep_while_idle
# echo 1 > /sys/power/enable_off_mode
# echo 1 > /sys/power/voltage_off_while_idle
<wait for x seconds>
# echo mem > /sys/power/state
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.00 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
Suspending console(s) (use no_console_suspend to debug)
<wait for x seconds>
omapfb omapfb: timeout waiting for FRAME DONE
Successfully put all powerdomains to target state
Restarting tasks ... done.
# echo mem > /sys/power/state
PM: Syncing filesystems ... done.
Freezing user space processes ... (elapsed 0.00 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.00 seconds) done.
Suspending console(s) (use no_console_suspend to debug)
U-Boot 1.1.4-g80441279 (May 14 2009 - 23:46:51)
-> Power Management Tester > https://garage.maemo.org/projects/pm-test/
This is considered to be tested, I'll give details when it is done...
Best Regards
Abraham
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