beaglebone-capes: add a powerdown script as well

The current powerdown script disables the PMIC backlight

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Denys Dmytriyenko <denys@ti.com>

3 files changed, 18 insertions, 1 deletions

diff --git a/recipes-ti/beagleboard/beaglebone-capes.bb b/recipes-ti/beagleboard/beaglebone-capes.bb
index 88d4a173..f1289247 100644
--- a/recipes-ti/beagleboard/beaglebone-capes.bb
+++ b/recipes-ti/beagleboard/beaglebone-capes.bb
@@ -3,10 +3,13 @@ DESCRIPTION = "Userspace setup for beaglebone capes"
 LICENSE = "MIT"
 LIC_FILES_CHKSUM = "file://${COREBASE}/LICENSE;md5=3f40d7994397109285ec7b81fdeb3b58"
 
+PR = "r1"
+
 inherit allarch
 
 SRC_URI = "file://cape.service \
            file://cape.sh \
+           file://cape-stop.sh \
           "
 
 do_install() {
@@ -17,7 +20,7 @@ do_install() {
         ln -sf ../cape.service ${D}${base_libdir}/systemd/system/basic.target.wants/
 
         install -d ${D}${bindir}
-        install -m 0755 ${WORKDIR}/cape.sh ${D}${bindir}
+        install -m 0755 ${WORKDIR}/cape*.sh ${D}${bindir}
 }
 
 FILES_${PN} += "${base_libdir}/systemd/system"
diff --git a/recipes-ti/beagleboard/beaglebone-capes/cape-stop.sh b/recipes-ti/beagleboard/beaglebone-capes/cape-stop.sh
new file mode 100755
index 00000000..a08498d7
--- /dev/null
+++ b/recipes-ti/beagleboard/beaglebone-capes/cape-stop.sh
@@ -0,0 +1,11 @@
+#!/bin/sh
+for eeprom in /sys/bus/i2c/devices/3-005*/eeprom ; do
+        PARTNUMBER=$(hexdump -e '8/1 "%c"' $eeprom -s 58 -n16)
+        case $PARTNUMBER in
+                "BB-BONE-LCD3-01.")
+                                echo "Turning off backlight for LCD3 cape"
+                                i2cset -f -y 1 0x24 0x07 0x00;;
+                *)
+                                echo "unknown cape: $PARTNUMBER";;
+        esac
+done
diff --git a/recipes-ti/beagleboard/beaglebone-capes/cape.service b/recipes-ti/beagleboard/beaglebone-capes/cape.service
index 44a2a38b..ce0db719 100644
--- a/recipes-ti/beagleboard/beaglebone-capes/cape.service
+++ b/recipes-ti/beagleboard/beaglebone-capes/cape.service
@@ -2,7 +2,10 @@
 Description=Beaglebone cape support
 
 [Service]
+Type=oneshot
+RemainAfterExit=yes
 ExecStart=/usr/bin/cape.sh
+ExecStop=/usr/bin/cape-stop.sh
 
 [Install]
 WantedBy=basic.target