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Imx6q usb resume/suspend

Question asked by Jacky Song on Jun 11, 2017
Latest reply on Jun 11, 2017 by igorpadykov

hi everyone, i have a lte module in my board. here is the kernel msg when it start.

 

[ 4.240598] ehci_fsl_bus_suspend ends, DR
[ 4.244690] ehci_fsl_bus_suspend begins, Host 1
[ 4.249799] ehci_fsl_bus_suspend ends, Host 1
[ 20.186121] ehci_fsl_bus_resume begins, Host 1
[ 20.205663] ehci_fsl_bus_resume ends, Host 1
[ 20.455594] usb 2-1: new high speed USB device number 2 using fsl-ehci
[ 20.609013] option 2-1:1.0: GSM modem (1-port) converter detected
[ 20.616424] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 20.623864] option 2-1:1.1: GSM modem (1-port) converter detected
[ 20.631193] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 20.638763] option 2-1:1.2: GSM modem (1-port) converter detected
[ 20.646002] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 20.653556] option 2-1:1.3: GSM modem (1-port) converter detected
[ 20.660779] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 20.668413] Discover the 4th interface for U8300 NDIS.
[ 20.674226] option 2-1:1.5: GSM modem (1-port) converter detected
[ 20.681516] usb 2-1: GSM modem (1-port) converter now attached to ttyUSB4
[ 22.143027] usb 2-1: USB disconnect, device number 2
[ 22.149091] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 22.157528] option 2-1:1.0: device disconnected
[ 22.162593] option: option_instat_callback: error -108
[ 22.168605] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 22.177062] option 2-1:1.1: device disconnected
[ 22.182124] option: option_instat_callback: error -108
[ 22.188112] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 22.196527] option 2-1:1.2: device disconnected
[ 22.201582] option: option_instat_callback: error -108
[ 22.207640] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 22.216008] option 2-1:1.3: device disconnected
[ 22.222440] option1 ttyUSB4: GSM modem (1-port) converter now disconnected from ttyUSB4
[ 22.230857] option 2-1:1.5: device disconnected
[ 24.395557] ehci_fsl_bus_suspend begins, Host 1
[ 24.400390] ehci_fsl_bus_suspend ends, Host 1
[ 124.618339] ehci_fsl_bus_resume begins, Host 1
[ 124.635584] ehci_fsl_bus_resume ends, Host 1
[ 125.205555] usb 2-1: new high speed USB device number 3 using fsl-ehci
[ 125.395565] hub 2-0:1.0: unable to enumerate USB device on port 1
[ 127.395557] ehci_fsl_bus_suspend begins, Host 1
[ 127.400666] ehci_fsl_bus_suspend ends, Host 1
[ 135.810419] ehci_fsl_bus_resume begins, Host 1
[ 135.825475] ehci_fsl_bus_resume ends, Host 1
[ 136.075538] usb 2-1: new high speed USB device number 5 using fsl-ehci
[ 136.265553] hub 2-0:1.0: unable to enumerate USB device on port 1
[ 146.265547] ehci_fsl_bus_suspend begins, Host 1
[ 146.270766] ehci_fsl_bus_suspend ends, Host 1
[ 146.361955] ehci_fsl_bus_resume begins, Host 1
[ 146.385537] ehci_fsl_bus_resume ends, Host 1
[ 147.875547] usb 2-1: new high speed USB device number 7 using fsl-ehci
[ 148.065554] hub 2-0:1.0: unable to enumerate USB device on port 1
[ 150.265548] ehci_fsl_bus_suspend begins, Host 1
[ 150.270309] ehci_fsl_bus_suspend ends, Host 1
[ 159.341706] ehci_fsl_bus_resume begins, Host 1
[ 159.365580] ehci_fsl_bus_resume ends, Host 1

 

 

the usb is suspend/resume over and over again. then lte device connected/disconnect.

any suggestion?

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