How to configure iMX6 Solo to power resume via USB-HID Touch

[premjith_thirot]

I have a  iMX6-solo platform with Yocto build and Linux kernel 4.1.15 .  I can set UART as wake up resource , but I am not able to do it with Touch. I am using USB-HID Touch in my board. 

->Issued the below commands to enable the USB Touch as wake up resource ,

$echo enabled > /sys/devices/soc0/soc/2000000.aips-bus/20c9000.usbphy/power/wakeup
$echo enabled > /sys/devices/soc0/soc/2000000.aips-bus/20ca000.usbphy/power/wakeup
$echo enabled > /sys/devices/soc0/soc/2100000.aips-bus/2184000.usb/power/wakeup
$echo enabled > /sys/devices/soc0/soc/2100000.aips-bus/2184000.usb/ci_hdrc.0/power/wakeup
$echo enabled > /sys/devices/soc0/soc/2100000.aips-bus/2184200.usb/power/wakeup
$echo enabled > /sys/devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.1/power/wakeup
$echo enabled > /sys/devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/power/wakeup
$echo enabled > /sys/devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb1/power/wakeup
$echo enabled > /sys/devices/soc0/soc/2100000.aips-bus/2184200.usb/ci_hdrc.1/power/wakeup

->Changed the mode to suspend to RAM

$echo mem > /sys/power/state

But I am not able to wake up my board using Touch . Please suggest how to configure wake up on touch...

Regards,

PREMJITH T

[igorpadykov]

Hi PREMJITH

one can try steps described in sect.39.2.4 USB Wakeup Usage attached Linux Manual

and examples in imx-test (folder /mxc_usb_test)
www.nxp.com/lgfiles/NMG/MAD/YOCTO/imx-test-5.7.tar.gz

Best regards
igor
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[premjith_thirot]

Hi igor,

That is also not working...

After suspend mode interrupt signal is not coming from the touch , Which means touch driver is not responding after suspend.

Regards

PREMJITH T

[igorpadykov]

one can check if clocks are enabled (configured with CCM_CCGRn register) for

module which uses touch driver.

Best regards
igor