#!/bin/bash -xe

# Detach kernel serial console
consoles=$(find /sys/bus/platform/devices/*.serial/ -name console)
for console in ${consoles}; do
        echo -n N > ${console}
done

# Configure PM runtime autosuspend
uarts=$(find /sys/bus/platform/devices/*.serial/power/ -type d)
for uart in $uarts; do
        echo -n 3000 > $uart/autosuspend_delay_ms
        echo -n enabled > $uart/wakeup
        echo -n auto > $uart/control
done

# Configure wake-up from suspend
uarts=$(find /sys/class/tty/tty[SO]*/power/ -type d 2>/dev/null)
for uart in $uarts; do
        echo -n enabled > $uart/wakeup
done