There's no "/sys/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-2/i2c-DLL0798:00/power/wakeup"?
There's no "/sys/devices/ pci0000: 00/0000: 00:15.1/ i2c_designware. 1/i2c-2/ i2c-DLL0798: 00/power/ wakeup" ?