Put in /etc/pm/power.d to route BT to ehci

bt-usb3

#!/bin/sh

# Allow the driver to put the audio hardware to sleep
# once the driver has been inactive for a second.
# This hook should work with at least the ac97 and hda codecs.

help() {
cat <<EOF
--------
$0: Intel Audio powersave parameters.

This hook has 1 tuneable parameter. 
INTEL_AUDIO_POWERSAVE = controls whether we will try to save power on battery.
Defaults to true.

EOF
}

audio_powersave() {
    setpci -s 0000:00:14.0 d0.w=0fdf
}

case $1 in
    true) audio_powersave;;
    false) audio_powersave;;
    help) help;;
    *) exit $NA
esac

exit 0