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Deep sleep LS1021A

Question asked by maumont adrien on May 17, 2018
Latest reply on Jun 18, 2018 by Yiping Wang

Hi, The deep sleep is resume automaticaly after I launch "echo mem > /sys/power/state"

I don't understand why, I see only one error:

    -sh: echo: write error: Operation not supported

 

My log:

 

root@ls1021atwr:~# echo mem > /sys/power/state
[  763.312794] PM: Syncing filesystems ... done.
[  763.322400] Freezing user space processes ... (elapsed 0.005 seconds) done.
[  763.335104] Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done.
[  763.345074] Suspending console(s) (use no_console_suspend to debug)
[  763.540371] PM: suspend of devices complete after 187.793 msecs
[  763.542146] PM: late suspend of devices complete after 1.758 msecs
[  763.544015] PM: noirq suspend of devices complete after 1.851 msecs
[  763.544021] Disabling non-boot CPUs ...
[  763.544727] CPU1: shutdown
[  763.562330] Retrying again to check for CPU kill
[  763.562345] CPU1 killed.
[  763.589426] Suspended for 0.000 seconds
[  763.589434] Enabling non-boot CPUs ...
[  763.604242] CPU1 is up
[  763.605546] PM: noirq resume of devices complete after 1.288 msecs
[  763.606903] PM: early resume of devices complete after 1.288 msecs
[  764.630764] dwc3 3100000.usb3: request value same as default, ignoring
[  764.632085] usb usb1: root hub lost power or was reset
[  764.632094] usb usb2: root hub lost power or was reset
[  764.932288] ata1: SATA link down (SStatus 0 SControl 300)
[  764.972624] usb 2-1: reset SuperSpeed USB device number 2 using xhci-hcd
[  765.112501] usb 1-1: reset high-speed USB device number 2 using xhci-hcd
[  765.112512] usb 1-1: reset high-speed USB device number 2 using xhci-hcd
[  765.412528] PM: resume of devices complete after 1805.608 msecs
[  765.516104] Restarting tasks ... done.
-sh: echo: write error: Operation not supported
root@ls1021atwr:~# [  765.653251] fsl-gianfar soc:ethernet@2d10000 eth0: Link is Down
[  765.659289] br0: port 1(eth0) entered disabled state
[  767.733213] fsl-gianfar soc:ethernet@2d10000 eth0: Link is Up - 1Gbps/Full - flow control off
[  767.742141] br0: port 1(eth0) entered blocking state
[  767.747121] br0: port 1(eth0) entered forwarding state

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