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>

1 files changed, 11 insertions, 0 deletions

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