BLUETOOTH-SUSPEND: add bluetooth suspend as wifi suspend

Change-Id: I44123165c65308a1e076a1ac4a62b1fbd4c14f0a

recipes-connectivity/bluetooth/bluetooth-suspend/bluetooth-brcmfmac-sleep.service

@@ -0,0 +1,13 @@
+[Unit]
+Description=Bluetooth brcmfmac sleep hook
+Before=sleep.target
+StopWhenUnneeded=yes
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+ExecStart=-/usr/bin/bluetooth_brcmfmac_driver.sh unbind
+ExecStop=-/usr/bin/bluetooth_brcmfmac_driver.sh bind
+
+[Install]
+WantedBy=sleep.target

recipes-connectivity/bluetooth/bluetooth-suspend/bluetooth_brcmfmac_driver.sh

@@ -0,0 +1,44 @@
+#!/bin/sh
+
+COMPATIBLE_BOARD=$(cat /proc/device-tree/compatible | sed "s|st,|,|g" | cut -d ',' -f2)
+
+case $COMPATIBLE_BOARD in
+stm32mp151a-dk2*)
+	# supported
+	;;
+stm32mp151f-dk2*)
+	# supported
+	;;
+stm32mp153a-dk2*)
+	# supported
+	;;
+stm32mp153f-dk2*)
+	# supported
+	;;
+stm32mp157c-dk2*)
+	# supported
+	;;
+stm32mp157f-dk2*)
+	# supported
+	;;
+	*)
+	exit 1;
+esac
+
+case $1 in
+bind)
+	echo "bind driver hci_uart";
+	echo "bind driver hci_uart" > /dev/kmsg
+	modprobe -r hci_uart
+	modprobe hci_uart
+	;;
+unbind)
+	echo "unbind driver hci_uart";
+	echo "unbind driver hci_uart" > /dev/kmsg
+	modprobe -r hci_uart
+	;;
+*)
+	echo "$0 [bind|unbind]"
+	echo "Bind/Unbind bluetooth driver brcmfmac."
+	;;
+esac