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system wakeup from shutdown

Question asked by Pratyush Tomar on Jan 25, 2018
Latest reply on Feb 22, 2018 by Pratyush Tomar

I am i.MX6UL processor and earlier when I was using kernel "Linux imx6ulevk 4.1.15-1.1.1+gd5d7c02" my board used to wakeup from shutdown if I set the /sys/classrtc/rtc0/wakealarm before shutdown with no problems. But after upgrading kernel to "Linux imx6ulevk 4.1.15-1.2.0+g77f6154" my board is not waking up from shutdown even though everything is same as before except for change in kernel. What can be the reason for this?