>
> Here's a modified version of your patch, does that put wlcore to
> idle with wowlan during suspend for you?
>
Still no joy.
It suspends/resumes ok but leaves the firmware disabled from entering ELP.
You can see the log below with some prints added to wlcore_runtime_suspend()
And wlcore_runtime_resume().
What you can see is that normally after each transaction, such as scan below,
It ends where the firmware is allowed to enter ELP based on its internal logic.
You can see the print "chip allowed to entered elp" below.
root@am335x-evm:~#
root@am335x-evm:~#
root@am335x-evm:~# iw wlan0 scan | grep SSID
[ 106.010879] disabling the FW from enering ELP
[ 106.026780] wlcore_runtime_suspend -> enter
[ 106.033331] allowing chip to entered elp
[ 106.037823] chip allowed to entered elp
...
...
[ 110.110140] disabling the FW from enering ELP
[ 110.224902] wlcore_runtime_suspend -> enter
[ 110.229208] allowing chip to entered elp
SSID: IOTLP_521
SSID: Reizer
SSID: LinksysADSL
SSID: RT2880_AP
SSID: net4guest
[ 110.252460] chip allowed to entered elp
SSID: halekoa75
SSID: externalhotspot84
SSID: cpn84
SSID: WPS_AP_5G
SSID: MarvellAP95
[ 110.266707] disabling the FW from enering ELP
[ 110.279297] wlcore_runtime_suspend -> enter
SSID:
SSID:
[ 110.292041] allowing chip to entered elp
SSID: net4guest
[ 110.303485] chip allowed to entered elp
SSID: halekoa75
SSID: externalhotspot84
SSID: cpn84
SSID: net4guest
SSID: halekoa75
SSID: externalhotspot84
SSID: cpn84
root@am335x-evm:~#
root@am335x-evm:~#
root@am335x-evm:~#
This is not the case when suspending.
You can see below that the message " PM: Successfully put all powerdomains to
target state"
Comes before the call to pm_runtime_suspend() was executed and the firmware
Remained in full active state consuming full power during the whole time the
system was
suspended.
The call to pm_runtime_suspend is only seen on resume:
[ 124.153960] Restarting tasks ...
[ 124.154702] wlcore_runtime_suspend -> enter
I have also verified that this is not just a print issue by using a firmware
logger that
Shows the internal state of the firmware and can see that the call to allow ELP
Actually comes only after resume.
This is what I am trying to chase now. Something is not right here with
pm_runtime.
Any ideas here?
root@am335x-evm:~#
root@am335x-evm:~# echo mem > /sys/power/state
[ 123.444472] PM: suspend entry (deep)
[ 123.448119] PM: Syncing filesystems ... done.
[ 123.467382] Freezing user space processes ... (elapsed 0.002 seconds) done.
[ 123.477144] OOM killer disabled.
[ 123.480424] Freezing remaining freezable tasks ... (elapsed 0.001 seconds)
done.
[ 123.489880] Suspending console(s) (use no_console_suspend to debug)
[ 123.505821] disabling the FW from enering ELP
[ 123.861590] pm33xx pm33xx: PM: Successfully put all powerdomains to target
state
[ 123.861590] PM: Wakeup source UART
[ 123.886091] net eth0: initializing cpsw version 1.12 (0)
[ 123.984353] SMSC LAN8710/LAN8720 4a101000.mdio:00: attached PHY driver [SMSC
LAN8710/LAN8720] (mii_bus:phy_addr=4a101000.mdio:00, irq=POLL)
[ 124.150623] OOM killer enabled.
[ 124.153960] Restarting tasks ...
[ 124.154702] wlcore_runtime_suspend -> enter
[ 124.171414] done.
[ 124.190085] allowing chip to entered elp
[ 124.199877] chip allowed to entered elp
[ 124.208633] PM: suspend exit
root@am335x-evm:~#
Best Regards,
Eyal
